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1.
Ward, J. W.
Information and control : inventing the communications revolution in post-war Britain.
Degree: PhD, 2018, University College London (University of London)
URL: https://discovery.ucl.ac.uk/id/eprint/10049443/ 
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747727
► This thesis undertakes the first history of the post-war British telephone system, and addresses it through the lens of both actors’ and analysts’ emphases on…
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▼ This thesis undertakes the first history of the post-war British telephone system, and addresses it through the lens of both actors’ and analysts’ emphases on the importance of ‘information’ and ‘control’. I explore both through a range of chapters on organisational history, laboratories, telephone exchanges, transmission technologies, futurology, transatlantic communications, and privatisation. The ideal of an ‘information network’ or an ‘information age’ is present to varying extents in all these chapters, as are deployments of different forms of control. The most pervasive, and controversial, form of control throughout this history is computer control, but I show that other forms of control, including environmental, spatial, and temporal, are all also important. I make three arguments: first, that the technological characteristics of the telephone system meant that its liberalisation and privatisation were much more ambiguous for competition and monopoly than expected; second, that information has been more important to the telephone system as an ideal to strive for, rather than the telephone system’s contribution to creating an apparent information age; third, that control is a more useful concept than information for analysing the history of the telephone system, but more work is needed to study the discursive significance of ‘control’ itself.
Subjects/Keywords: 384
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APA (6th Edition):
Ward, J. W. (2018). Information and control : inventing the communications revolution in post-war Britain. (Doctoral Dissertation). University College London (University of London). Retrieved from https://discovery.ucl.ac.uk/id/eprint/10049443/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747727
Chicago Manual of Style (16th Edition):
Ward, J W. “Information and control : inventing the communications revolution in post-war Britain.” 2018. Doctoral Dissertation, University College London (University of London). Accessed February 28, 2021.
https://discovery.ucl.ac.uk/id/eprint/10049443/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747727.
MLA Handbook (7th Edition):
Ward, J W. “Information and control : inventing the communications revolution in post-war Britain.” 2018. Web. 28 Feb 2021.
Vancouver:
Ward JW. Information and control : inventing the communications revolution in post-war Britain. [Internet] [Doctoral dissertation]. University College London (University of London); 2018. [cited 2021 Feb 28].
Available from: https://discovery.ucl.ac.uk/id/eprint/10049443/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747727.
Council of Science Editors:
Ward JW. Information and control : inventing the communications revolution in post-war Britain. [Doctoral Dissertation]. University College London (University of London); 2018. Available from: https://discovery.ucl.ac.uk/id/eprint/10049443/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747727
2.
Houston, Lara.
Inventive infrastructures : an exploration of mobile phone 'repair' cultures in Kampala, Uganda.
Degree: PhD, 2013, Lancaster University
URL: https://eprints.lancs.ac.uk/id/eprint/78623/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569486
► Communities of repair in Kampala salvage phones; they bring dead ones back to life and rework recycled ones to operate with unfamiliar networks. How do…
(more)
▼ Communities of repair in Kampala salvage phones; they bring dead ones back to life and rework recycled ones to operate with unfamiliar networks. How do these communities of repair congeal around the mobile phone? How do they form and develop? How is 'repair' understood and negotiated? The 'moment' of mobile phone repair exposes the multi-layered physical and social relationships that underpin mobile telephony in Kampala. Mobile phone workshops provide a rich and productive terrain for thinking about both the sociality and materiality of human-technology relations. Multi-sited ethnographic fieldwork of markets and small, informal businesses will enable the detailed exploration of socio-technical assemblages of mobile phone 'maintenance' and 'repair'. Perhaps the Kampalan 'repair cultures' can also suggest some new approaches towards computing and telephony in mature markets globally, particularly with reference to the growing problem of e-waste. The Ugandan proliferation of mobile repair businesses gives an insight into a new paradigm for computing, where hard and software are left more radically open to upgrade, and companies move towards a role of service provision (Graham and Thrift 2007: 19).
Subjects/Keywords: 384
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APA (6th Edition):
Houston, L. (2013). Inventive infrastructures : an exploration of mobile phone 'repair' cultures in Kampala, Uganda. (Doctoral Dissertation). Lancaster University. Retrieved from https://eprints.lancs.ac.uk/id/eprint/78623/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569486
Chicago Manual of Style (16th Edition):
Houston, Lara. “Inventive infrastructures : an exploration of mobile phone 'repair' cultures in Kampala, Uganda.” 2013. Doctoral Dissertation, Lancaster University. Accessed February 28, 2021.
https://eprints.lancs.ac.uk/id/eprint/78623/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569486.
MLA Handbook (7th Edition):
Houston, Lara. “Inventive infrastructures : an exploration of mobile phone 'repair' cultures in Kampala, Uganda.” 2013. Web. 28 Feb 2021.
Vancouver:
Houston L. Inventive infrastructures : an exploration of mobile phone 'repair' cultures in Kampala, Uganda. [Internet] [Doctoral dissertation]. Lancaster University; 2013. [cited 2021 Feb 28].
Available from: https://eprints.lancs.ac.uk/id/eprint/78623/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569486.
Council of Science Editors:
Houston L. Inventive infrastructures : an exploration of mobile phone 'repair' cultures in Kampala, Uganda. [Doctoral Dissertation]. Lancaster University; 2013. Available from: https://eprints.lancs.ac.uk/id/eprint/78623/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569486
3.
Chatterjee, Ranita.
Journeys in and beyond the city : cinema in Calcutta, 1897-1939.
Degree: PhD, 2011, University of Westminster
URL: https://westminsterresearch.westminster.ac.uk/item/8zx68/journeys-in-and-beyond-the-city-cinema-in-calcutta-1897-1939
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606269
► This thesis is a historiography of early cinema in Calcutta and moves away from the received paradigm of ‘national’ cinema to consider the larger transnational…
(more)
▼ This thesis is a historiography of early cinema in Calcutta and moves away from the received paradigm of ‘national’ cinema to consider the larger transnational framework within which to narrate histories of early cinema. It also positions the city as a critical frame from which early film historiography can be generated. The study maps out the emergence of the Calcutta film industry, from its beginnings in 1897 to the rise of the studios and its stabilisation by the 1930s. In the process the study challenges received film history to reveal a complex, multi-layered and robust film industry in Calcutta that emerged concurrently with Bombay – a narrative that has largely been written out of nationalist discourses of ‘Indian cinema’. The thesis addresses a lacuna in the history of film in South Asia by shifting the focus to Calcutta, from Bombay; by moving away from the film text to focus on institutional history; and by moving from an interrogation of production histories to placing histories of film circulation at the centre of film historiography. This is the first enquiry based on studio records to discuss film history in India in this period. It accesses rare industry documents found in the archives of the Aurora Film Corporation, the oldest surviving film studio in India. The Aurora papers bring to light new evidence on the everyday workings of the film industry in the 1930s, including details of circulation practices and trans-regional networks that inextricably link the three key industries of Bombay, Calcutta and Madras in complex relationships. The Aurora papers also reveal details of transnational circulation amongst the Indian diaspora in the 1930s and broadens the canvas of enquiry into early South Asian cinema. Thereby this study connects the Calcutta industry to other global film production/distribution centres of London and Hollywood, to other film nodes in colonial India – Bombay, Madras, Lahore, Rangoon – and to other film nodes across the Indian Ocean – in Fiji, Singapore, Mombasa and Baghdad.
Subjects/Keywords: 384
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APA (6th Edition):
Chatterjee, R. (2011). Journeys in and beyond the city : cinema in Calcutta, 1897-1939. (Doctoral Dissertation). University of Westminster. Retrieved from https://westminsterresearch.westminster.ac.uk/item/8zx68/journeys-in-and-beyond-the-city-cinema-in-calcutta-1897-1939 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606269
Chicago Manual of Style (16th Edition):
Chatterjee, Ranita. “Journeys in and beyond the city : cinema in Calcutta, 1897-1939.” 2011. Doctoral Dissertation, University of Westminster. Accessed February 28, 2021.
https://westminsterresearch.westminster.ac.uk/item/8zx68/journeys-in-and-beyond-the-city-cinema-in-calcutta-1897-1939 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606269.
MLA Handbook (7th Edition):
Chatterjee, Ranita. “Journeys in and beyond the city : cinema in Calcutta, 1897-1939.” 2011. Web. 28 Feb 2021.
Vancouver:
Chatterjee R. Journeys in and beyond the city : cinema in Calcutta, 1897-1939. [Internet] [Doctoral dissertation]. University of Westminster; 2011. [cited 2021 Feb 28].
Available from: https://westminsterresearch.westminster.ac.uk/item/8zx68/journeys-in-and-beyond-the-city-cinema-in-calcutta-1897-1939 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606269.
Council of Science Editors:
Chatterjee R. Journeys in and beyond the city : cinema in Calcutta, 1897-1939. [Doctoral Dissertation]. University of Westminster; 2011. Available from: https://westminsterresearch.westminster.ac.uk/item/8zx68/journeys-in-and-beyond-the-city-cinema-in-calcutta-1897-1939 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606269
4.
Vollans, Edwin.
Cross media promotion : entertainment industries and the trailer.
Degree: PhD, 2015, University of East Anglia
URL: https://ueaeprints.uea.ac.uk/id/eprint/53382/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.656121
► The turn of the millennium bore witness to a phenomenon: the use of promotion trailers for a variety of products. Both stage theatre and the…
(more)
▼ The turn of the millennium bore witness to a phenomenon: the use of promotion trailers for a variety of products. Both stage theatre and the publishing industries came under the media spotlight for using trailers to promote their wares throwing into sharp contrast the normativity of film trailers. Despite increased academic study of the film trailer, few have considered the trailer outside the industrial context of the film industry. Coupled with this trend in focus, is the tendency within the literature to suggest that the trailer exists as a unique form because they exist in the same medium as the product that promote. Added to this is the tendency to rely on an a priori definition that is not explored fully. By way of intervention with these key issues, this thesis considers the aesthetics and emergence of the trailer in entertainment industries other than film and serves as a counterpoint to the cinema centric imbalance within the study of the trailer. Using a corpus of audiovisual texts identified as trailers through UK press websites, this thesis draws from the popular understanding of the trailer in order to explore the historical and industrial trajectory of these other forms of trailer. Taking the form of case studies organised by the industry in which the trailer's product operates this thesis explores the historical context in which the trailer emerged and the aesthetic trends at work in the current trailer therein. In exploring both the history and the aesthetic representation of the trailer in the industry this thesis moves the study of trailers away from repetitive debates surrounding the film industry and opens up the possibility of trailers as a cultural phenomenon and simultaneous marketing trend. Through providing a grounded understanding of the trailer's use within contemporary entertainment industries, the thesis argues that the term 'trailer' has moved beyond advertising for films. It suggests the trailer has come to typify promotion for any product that is at its core, is an experience. In doing so thesis presents a much needed counterpoint and challenge to cinema-centric analysis of the trailer.
Subjects/Keywords: 384
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Manager
APA (6th Edition):
Vollans, E. (2015). Cross media promotion : entertainment industries and the trailer. (Doctoral Dissertation). University of East Anglia. Retrieved from https://ueaeprints.uea.ac.uk/id/eprint/53382/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.656121
Chicago Manual of Style (16th Edition):
Vollans, Edwin. “Cross media promotion : entertainment industries and the trailer.” 2015. Doctoral Dissertation, University of East Anglia. Accessed February 28, 2021.
https://ueaeprints.uea.ac.uk/id/eprint/53382/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.656121.
MLA Handbook (7th Edition):
Vollans, Edwin. “Cross media promotion : entertainment industries and the trailer.” 2015. Web. 28 Feb 2021.
Vancouver:
Vollans E. Cross media promotion : entertainment industries and the trailer. [Internet] [Doctoral dissertation]. University of East Anglia; 2015. [cited 2021 Feb 28].
Available from: https://ueaeprints.uea.ac.uk/id/eprint/53382/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.656121.
Council of Science Editors:
Vollans E. Cross media promotion : entertainment industries and the trailer. [Doctoral Dissertation]. University of East Anglia; 2015. Available from: https://ueaeprints.uea.ac.uk/id/eprint/53382/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.656121
University of East Anglia
5.
Hsia, Yun.
The film industry in Taiwan : a political economy perspective.
Degree: PhD, 2011, University of East Anglia
URL: https://ueaeprints.uea.ac.uk/id/eprint/47937/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590693
► The main purpose of this thesis is to critically analyse the film industry in Taiwan from a political economy perspective and to compare Taiwan’s film…
(more)
▼ The main purpose of this thesis is to critically analyse the film industry in Taiwan from a political economy perspective and to compare Taiwan’s film industry with that of Hong Kong. The thesis will examine the development of the film industries in Taiwan and Hong Kong in the 1990s and analyse the decline of these film industries. The study takes into account how the governments’ policies have been framed and examines the interaction between the governments and the industries in the 1990s. This thesis will start by expounding the approach of political economy and explain how it will be applied to the study of Taiwan’s film industry. The approach of political economy will provide a historical analysis of the film industry and review the industry’s development in terms of both political influence and economic factors. This approach will provide a more comprehensive study of these film industries. The framework assumes that the development of the film industry in Taiwan has been influenced by government policy and especially government subsidies and that this policy has directed the industry. A film in Taiwan is regarded as an art form, perhaps with a diplomatic purpose, rather than as a commercial cultural product. A film in Hong Kong is mainly made for the commercial market with the purpose of entertaining audiences. The distinction between Taiwanese cinema and Hong Kong cinema provides a diverse view of the Chinese-language film market. After examining the development of the film industry in Taiwan and Hong Kong from a political economy perspective a new image for the Chinese- language film sphere will be discussed. The advantages and disadvantages of the film industry in two places will be summarised and used to provide some suggestions for the future development of “New Chinese Cinema” in the twenty-first century.
Subjects/Keywords: 384
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APA ·
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Manager
APA (6th Edition):
Hsia, Y. (2011). The film industry in Taiwan : a political economy perspective. (Doctoral Dissertation). University of East Anglia. Retrieved from https://ueaeprints.uea.ac.uk/id/eprint/47937/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590693
Chicago Manual of Style (16th Edition):
Hsia, Yun. “The film industry in Taiwan : a political economy perspective.” 2011. Doctoral Dissertation, University of East Anglia. Accessed February 28, 2021.
https://ueaeprints.uea.ac.uk/id/eprint/47937/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590693.
MLA Handbook (7th Edition):
Hsia, Yun. “The film industry in Taiwan : a political economy perspective.” 2011. Web. 28 Feb 2021.
Vancouver:
Hsia Y. The film industry in Taiwan : a political economy perspective. [Internet] [Doctoral dissertation]. University of East Anglia; 2011. [cited 2021 Feb 28].
Available from: https://ueaeprints.uea.ac.uk/id/eprint/47937/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590693.
Council of Science Editors:
Hsia Y. The film industry in Taiwan : a political economy perspective. [Doctoral Dissertation]. University of East Anglia; 2011. Available from: https://ueaeprints.uea.ac.uk/id/eprint/47937/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590693
6.
Al Hashmi, Ali Said.
Development and deployment of dynamic reconfiguration capabilities in the telecommunications sector.
Degree: PhD, 2017, University of Strathclyde
URL: http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28643
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723041
► The telecommunications sector faces rapid technology changes, which require huge capital investment, changes in rules and regulations, changes in customer behaviour and increasing customer demand.…
(more)
▼ The telecommunications sector faces rapid technology changes, which require huge capital investment, changes in rules and regulations, changes in customer behaviour and increasing customer demand. This rapid development directs how the telecommunication service operators deploy their strategies and network infrastructure and continue to evolve their business models. A unique requirement of the telecom industry is the need to manage and deploy planned, unplanned and emergency resources concurrently. The ‘dynamic capabilities’ (DC) approach can be used as a framework to respond to this critical requirement for both managers and researchers. This study has a particular focus on dynamic reconfiguration capabilities (DRC), as these play a critical role in the deployment of strategy. The current literature shows clear limitations regarding how DRC emerge and how they can be used to manage concurrent strategy approaches, which are relevant to the telecommunications sector. Five case studies from a telecommunication service provider are used in this research. Three types of data were collected, namely: 23 interviews, 10 direct observations and over 120 documents. A two-stage coding process is conducted for each case, and causal network diagrams are used to extract findings. A cross-case analysis enabled the identification of the empirical practices relating to the research questions. Findings from the case studies confirm the relevance of several practices previously highlighted in the literature. They also revealed additional practices that support the DRC lifecycle. The case studies are performing most of the practices outlined in the theory of the DRC lifecycle framework, with different degrees of emphasis, especially in the deployment phase. This research extends the current theory by identifying the role of DRC in deploying concurrent strategic approaches. It extends the resource-based view (RBV) and agility theories, which fail to adequately address long-term plans, and collapse when the market is very dynamic. Furthermore, it contributes to the DC literature by identifying the organisational practices that support development, deployment and improvement in the telecommunication industry. Also, it addresses an important gap in the literature by providing organisational practices and evidence of the DRC role to support the concurrent approaches to strategy deployment in the telecommunication industry.
Subjects/Keywords: 384
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Manager
APA (6th Edition):
Al Hashmi, A. S. (2017). Development and deployment of dynamic reconfiguration capabilities in the telecommunications sector. (Doctoral Dissertation). University of Strathclyde. Retrieved from http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28643 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723041
Chicago Manual of Style (16th Edition):
Al Hashmi, Ali Said. “Development and deployment of dynamic reconfiguration capabilities in the telecommunications sector.” 2017. Doctoral Dissertation, University of Strathclyde. Accessed February 28, 2021.
http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28643 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723041.
MLA Handbook (7th Edition):
Al Hashmi, Ali Said. “Development and deployment of dynamic reconfiguration capabilities in the telecommunications sector.” 2017. Web. 28 Feb 2021.
Vancouver:
Al Hashmi AS. Development and deployment of dynamic reconfiguration capabilities in the telecommunications sector. [Internet] [Doctoral dissertation]. University of Strathclyde; 2017. [cited 2021 Feb 28].
Available from: http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28643 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723041.
Council of Science Editors:
Al Hashmi AS. Development and deployment of dynamic reconfiguration capabilities in the telecommunications sector. [Doctoral Dissertation]. University of Strathclyde; 2017. Available from: http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28643 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723041
7.
Jwaifel, Abdullah Mahmoud.
A case study of the application of long run incremental cost models in the Jordanian telecommunications industry over the period 2006-2012 : performance, efficiency and implementation issues.
Degree: PhD, 2017, Cardiff Metropolitan University
URL: http://hdl.handle.net/10369/9935
► The thesis examines the impact of the introduction, in 2009, of Long-Run Incremental Costing (LRIC) on the performance and efficiency of the wholesale market of…
(more)
▼ The thesis examines the impact of the introduction, in 2009, of Long-Run Incremental Costing (LRIC) on the performance and efficiency of the wholesale market of the Jordanian Telecommunications Industry (JTI); an oligopoly industry composed of three, approximately equal sized firms, Orange, Umniah and Zain. Oligopolistic industries are associated with excess returns. The intention of the introduction of LRIC by the JTI regulator was to reduce excess returns and introduce a degree of competition. The research examines the impact of LRIC on performance; comparing two periods pre LRIC 2006-2008 and post LRIC 2010-2012. The data set includes financial accounting data, gathered between 2013 and 2015, from published accounts and primary data drawn from surveys of managers in the three firms, the latter needed to overcome well-known issues of transparency and more importantly the firm’s concern with commercial sensitivity. Analysis of the data revealed that adopting LRIC on pricing and costing apparently had significant impacts on performance; impact varied between measures; sales data (call traffic/volumes) were extrapolated and suggest some impact on competition and market share. Correlations between measures are interesting and not entirely of the order that theory would predict. One suggestion that emerges from correlation/covariance analysis is that performance and efficiency may be more reliably measured by composite measures than independent measures and that heat mapping comparative data is a useful management tool. This thesis draws on a long tradition of cost and cost efficiency analysis in accounting and economics, culminating in the concept of LRIC, which is composed of both. LRIC is really a cost plus measure; an attempt to account for true opportunity costs in a situation where the marginal cost, in this case the cost of an additional call, simply as a variable cost is negligible (and falling with respect to the volume of traffic) but when full opportunity costs are taken into account, they are substantial. IV The data set (population data, JTI is made up of the 3 firms) includes variables grouped under the categories of financial, operational and competitiveness. Variables considered include; rates of return on assets, equity and sales; profit margin, earnings and revenue; capital expenditure; calculated price and cross elasticities, and sales. The data set includes published and unpublished data and data from fieldwork consisting of structured surveys with JTI managers, carried out in 2013-2015. Confidentiality concerns and transparency issues were addressed. This involved the researcher in extrapolation of data especially with reference to sales, mark-up and industry competition. The academic contribution of this thesis is the measurement of the extent of the application of the LRIC model methodology in Jordanian telecommunication firms through tracking the application and development of LRMC through LRIC in a new context (Jordan). Additionally, the impact of the application of the LRIC model methodology on…
Subjects/Keywords: 384
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APA ·
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MLA ·
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Manager
APA (6th Edition):
Jwaifel, A. M. (2017). A case study of the application of long run incremental cost models in the Jordanian telecommunications industry over the period 2006-2012 : performance, efficiency and implementation issues. (Doctoral Dissertation). Cardiff Metropolitan University. Retrieved from http://hdl.handle.net/10369/9935
Chicago Manual of Style (16th Edition):
Jwaifel, Abdullah Mahmoud. “A case study of the application of long run incremental cost models in the Jordanian telecommunications industry over the period 2006-2012 : performance, efficiency and implementation issues.” 2017. Doctoral Dissertation, Cardiff Metropolitan University. Accessed February 28, 2021.
http://hdl.handle.net/10369/9935.
MLA Handbook (7th Edition):
Jwaifel, Abdullah Mahmoud. “A case study of the application of long run incremental cost models in the Jordanian telecommunications industry over the period 2006-2012 : performance, efficiency and implementation issues.” 2017. Web. 28 Feb 2021.
Vancouver:
Jwaifel AM. A case study of the application of long run incremental cost models in the Jordanian telecommunications industry over the period 2006-2012 : performance, efficiency and implementation issues. [Internet] [Doctoral dissertation]. Cardiff Metropolitan University; 2017. [cited 2021 Feb 28].
Available from: http://hdl.handle.net/10369/9935.
Council of Science Editors:
Jwaifel AM. A case study of the application of long run incremental cost models in the Jordanian telecommunications industry over the period 2006-2012 : performance, efficiency and implementation issues. [Doctoral Dissertation]. Cardiff Metropolitan University; 2017. Available from: http://hdl.handle.net/10369/9935
University College London (University of London)
8.
Haberman, Bonna Devora.
The intentionality view of moral experience : creating a moral philosophy of education.
Degree: PhD, 1986, University College London (University of London)
URL: https://discovery.ucl.ac.uk/id/eprint/10019609/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.630661
Subjects/Keywords: 107
Record Details
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Manager
APA (6th Edition):
Haberman, B. D. (1986). The intentionality view of moral experience : creating a moral philosophy of education. (Doctoral Dissertation). University College London (University of London). Retrieved from https://discovery.ucl.ac.uk/id/eprint/10019609/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.630661
Chicago Manual of Style (16th Edition):
Haberman, Bonna Devora. “The intentionality view of moral experience : creating a moral philosophy of education.” 1986. Doctoral Dissertation, University College London (University of London). Accessed February 28, 2021.
https://discovery.ucl.ac.uk/id/eprint/10019609/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.630661.
MLA Handbook (7th Edition):
Haberman, Bonna Devora. “The intentionality view of moral experience : creating a moral philosophy of education.” 1986. Web. 28 Feb 2021.
Vancouver:
Haberman BD. The intentionality view of moral experience : creating a moral philosophy of education. [Internet] [Doctoral dissertation]. University College London (University of London); 1986. [cited 2021 Feb 28].
Available from: https://discovery.ucl.ac.uk/id/eprint/10019609/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.630661.
Council of Science Editors:
Haberman BD. The intentionality view of moral experience : creating a moral philosophy of education. [Doctoral Dissertation]. University College London (University of London); 1986. Available from: https://discovery.ucl.ac.uk/id/eprint/10019609/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.630661
9.
Istoan, Matei Valentin.
High-performance coarse operators for FPGA-based computing : Opérateurs grossiers haute performance pour l'informatique basée FPGA.
Degree: Docteur es, Informatique, 2017, Lyon
URL: http://www.theses.fr/2017LYSEI030
► Les FPGA (Field Programmable Gate Arrays) constituent un type de circuit reprogrammable qui, sous certaines conditions, peuvent avoir de meilleures performances que les microprocesseurs classiques.…
(more)
▼ Les FPGA (Field Programmable Gate Arrays) constituent un type de circuit reprogrammable qui, sous certaines conditions, peuvent avoir de meilleures performances que les microprocesseurs classiques. Les FPGA utilisent le circuit comme paradigme de programmation, ce qui permet d'effectuer des calculs parallèles propres à l'application visée. Ils permettent aussi d’atteindre l’efficacité arithmétique: un bit ne doit être calculé que s'il est utile dans le résultat final. Pour ce faire, l’arithmétique utilisée par les FPGA ne peut se limiter qu’à des fonctions conçues pour les microprocesseurs. Cette thèse se propose d’étudier les méthodes pour l’implémentation des fonctions gros-grain pour les FPGA à travers trois voies. De nouvelles méthodes pour évaluer des fonctions trigonométriques, telles que le sinus, cosinus et arc tangente ont été développés dans cette thèse. Chaque méthode est optimisée dans son contexte, de la manière la plus flexible et la plus souple possible. Pour que les méthodes aboutissent à leur efficacité arithmétique, il est nécessaire de procéder à une analyse d'erreurs, ainsi qu’à un choix attentif des paramétrés de la méthode et à une fine compréhension des algorithmes utilisés. Les filtres numériques constituent une famille importante d’opérateurs arithmétiques qui rassemble des fonctions élémentaires. Ils peuvent être spécifiés à un niveau élevé d'abstraction, à travers une fonction de transfert avec des contraintes sur le rapport signal/bruit. Ils peuvent être ensuite implémentés comme des chemins de données basés sur des additions et des multiplications. Le principal résultat est donc une méthode qui transforme une spécification de haut niveau en une implémentation d’une façon automatique. La première étape se rapporte au développement d'une méthode pour le calcul des produits par des constantes. Des filtres FIR et IIR peuvent être construits à l'aide de cette brique de base. Pour que les opérateurs arithmétiques atteignent leur performance maximale, on a besoin d’un pipeline correspondant au contexte donné. Même si les connaissances du développeur s’avèrent d’un grand avantage pendant le processus de création d'un pipeline d'un chemin de données, cette étape demeure complexe et facilement susceptible à des erreurs. Une méthode automatique, contrôlée par le développeur a dont été développée. Cette thèse fournit un générateur des opérateurs arithmétiques de haute qualité près à l'emploi, et qui propagent le domaine des calculs sur des FPGA à un pas plus proche de l’adoption générale. Les cœurs arithmétiques font partie d'un générateur open-source, où les fonctions peuvent être décrites par une spécification de haut niveau, comme par exemple une formule mathématique.
Field-Programmable Gate Arrays (FPGAs) have been shown to sometimes outperform mainstream microprocessors. The circuit paradigm enables efficient application-specific parallel computations. FPGAs also enable arithmetic efficiency: a bit is only computed if it is useful to the final result. To achieve this, FPGA arithmetic…
Advisors/Committee Members: Dupont de Dinechin, Florent (thesis director).
Subjects/Keywords: Informatique; Arithmétique de l'ordinateur; Architecture des circuits; Filtres numériques; Computer science; Computer arithmetic; Computer architecture; Digital filters; 004.015 107 2
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APA (6th Edition):
Istoan, M. V. (2017). High-performance coarse operators for FPGA-based computing : Opérateurs grossiers haute performance pour l'informatique basée FPGA. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2017LYSEI030
Chicago Manual of Style (16th Edition):
Istoan, Matei Valentin. “High-performance coarse operators for FPGA-based computing : Opérateurs grossiers haute performance pour l'informatique basée FPGA.” 2017. Doctoral Dissertation, Lyon. Accessed February 28, 2021.
http://www.theses.fr/2017LYSEI030.
MLA Handbook (7th Edition):
Istoan, Matei Valentin. “High-performance coarse operators for FPGA-based computing : Opérateurs grossiers haute performance pour l'informatique basée FPGA.” 2017. Web. 28 Feb 2021.
Vancouver:
Istoan MV. High-performance coarse operators for FPGA-based computing : Opérateurs grossiers haute performance pour l'informatique basée FPGA. [Internet] [Doctoral dissertation]. Lyon; 2017. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2017LYSEI030.
Council of Science Editors:
Istoan MV. High-performance coarse operators for FPGA-based computing : Opérateurs grossiers haute performance pour l'informatique basée FPGA. [Doctoral Dissertation]. Lyon; 2017. Available from: http://www.theses.fr/2017LYSEI030
University College London (University of London)
10.
Robinson, Lyn.
Toxicology knowledge and information : the impact of new information and communication technologies.
Degree: PhD, 2003, University College London (University of London)
URL: https://discovery.ucl.ac.uk/id/eprint/10103500/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401634
► This thesis examines the communication of scientific knowledge. Specifically, it considers the effect of new information and communication technologies (ICTs) on this process. It focuses…
(more)
▼ This thesis examines the communication of scientific knowledge. Specifically, it considers the effect of new information and communication technologies (ICTs) on this process. It focuses on the discipline of toxicology, although the findings should be applicable to related subject areas. Toxicology was chosen because it is a rapidly developing, multifaceted subject area, with a rich history of information resources. New ICTs are defined as those computer and telecommunication technologies which have permeated our society from around 1980 onwards. The aim is to define toxicology information at the turn of the millennium, and to predict how its communication processes will progress over the next 5-10 years. This is achieved by examining facets of the discipline, and by researching the changes which have occurred from the inception of the subject, to the present day. Emphasis is on those changes taking place over the past 20 years, as these parallel the contemporary phenomenon of rapid technological advancement in western society. No analysis of this kind has previously been undertaken for toxicology information. The methodology also presents a novel, composite, mechanism for the study and understanding of communication within a discipline. Specific outcomes: A systematic way to identify toxicology resources is defined. A model for toxicology communication in 2002, is derived. Toxicology is found to have changed from being a sub-discipline, to a field in its own right, which exports ideas in addition to importing them. Ways of overcoming deficiencies in retrieval from existing information systems and services are suggested. The effectiveness of available tools for organising and describing toxicology information is assessed, and a three layer model for representation of a toxicology statement is proposed. An understanding of the impact of new ICTs on toxicology communication is gained, which gives insight into possible changes in the near future.
Subjects/Keywords: 384
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APA (6th Edition):
Robinson, L. (2003). Toxicology knowledge and information : the impact of new information and communication technologies. (Doctoral Dissertation). University College London (University of London). Retrieved from https://discovery.ucl.ac.uk/id/eprint/10103500/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401634
Chicago Manual of Style (16th Edition):
Robinson, Lyn. “Toxicology knowledge and information : the impact of new information and communication technologies.” 2003. Doctoral Dissertation, University College London (University of London). Accessed February 28, 2021.
https://discovery.ucl.ac.uk/id/eprint/10103500/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401634.
MLA Handbook (7th Edition):
Robinson, Lyn. “Toxicology knowledge and information : the impact of new information and communication technologies.” 2003. Web. 28 Feb 2021.
Vancouver:
Robinson L. Toxicology knowledge and information : the impact of new information and communication technologies. [Internet] [Doctoral dissertation]. University College London (University of London); 2003. [cited 2021 Feb 28].
Available from: https://discovery.ucl.ac.uk/id/eprint/10103500/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401634.
Council of Science Editors:
Robinson L. Toxicology knowledge and information : the impact of new information and communication technologies. [Doctoral Dissertation]. University College London (University of London); 2003. Available from: https://discovery.ucl.ac.uk/id/eprint/10103500/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401634
11.
Als, Adrian Andrew.
Mathematical modelling of all-optical buffering for ultrafast optical time division multiplexed networks.
Degree: PhD, 2004, Sheffield Hallam University
URL: http://shura.shu.ac.uk/19258/
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407165
► The development of a practical solution to all-optical buffer remains a challenge for high-speed (> 20 Gbit/s) optical networks. Most of the research in the…
(more)
▼ The development of a practical solution to all-optical buffer remains a challenge for high-speed (> 20 Gbit/s) optical networks. Most of the research in the field has concentrated on building test-bed solutions, however the literature review shows little evidence in the use of mathematical models to aid in the design process. This PhD study is an attempt to design and develop a mathematical model of an all-optical buffer suitable for use within optical time division multiplexed systems. The emphasis is placed on recirculating fibre loop buffers because of their inherent storage advantages. The most critical of these advantages is that the storage delay time is independent of the fibre length. While there is a precedent of employing large recirculating fibre loop architectures to simulate ultra-long haul transmission lines in research projects, their use in short length (< 500m) buffering architectures is not prevalent in the literature. This work finds a niche in this domain where the physical effects of the buffer components (e.g. optical switches) have not been previously documented. In order to optimise the bit error rate performance and characterise its dependence on the physical buffer characteristics, the buffer models are designed and simulated in MATLAB and VPI. The associated mathematical models, developed in this work, are validated by the results produced using these simulation packages. The benefit of this research is reflected in the fact that varying the parameters of the mathematical model effectively simulates the changing of physical device characteristics. Consequently, the designing process becomes less arduous, as lengthy simulation times are now reduced. Moreover, as physical implementation can now be delayed until the buffer design is optimised, production cost may be reduced.
Subjects/Keywords: 384
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APA (6th Edition):
Als, A. A. (2004). Mathematical modelling of all-optical buffering for ultrafast optical time division multiplexed networks. (Doctoral Dissertation). Sheffield Hallam University. Retrieved from http://shura.shu.ac.uk/19258/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407165
Chicago Manual of Style (16th Edition):
Als, Adrian Andrew. “Mathematical modelling of all-optical buffering for ultrafast optical time division multiplexed networks.” 2004. Doctoral Dissertation, Sheffield Hallam University. Accessed February 28, 2021.
http://shura.shu.ac.uk/19258/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407165.
MLA Handbook (7th Edition):
Als, Adrian Andrew. “Mathematical modelling of all-optical buffering for ultrafast optical time division multiplexed networks.” 2004. Web. 28 Feb 2021.
Vancouver:
Als AA. Mathematical modelling of all-optical buffering for ultrafast optical time division multiplexed networks. [Internet] [Doctoral dissertation]. Sheffield Hallam University; 2004. [cited 2021 Feb 28].
Available from: http://shura.shu.ac.uk/19258/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407165.
Council of Science Editors:
Als AA. Mathematical modelling of all-optical buffering for ultrafast optical time division multiplexed networks. [Doctoral Dissertation]. Sheffield Hallam University; 2004. Available from: http://shura.shu.ac.uk/19258/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407165
University of Surrey
12.
Arthur, Daniel J. W.
Diffusion modelling and industry dynamics in mobile telecoms data services.
Degree: PhD, 2008, University of Surrey
URL: http://epubs.surrey.ac.uk/843191/
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594173
► The market growth of content and data services in the mobile telecoms industry entails the development of complex industry networks or 'ecosystems'. This research stems…
(more)
▼ The market growth of content and data services in the mobile telecoms industry entails the development of complex industry networks or 'ecosystems'. This research stems from the emerging Location-Based Services (LBS) sector, which has suffered the slow-start dynamics that often belie optimistic forecasts of new technologies. An exploratory and generic industry-level model is developed using the system dynamics simulation modelling approach to explain the start-up problem. This serves as a dynamic theory for the emerging LBS industry market where service diffusion is based on the growth of the installed base of an embedded product. Supply-demand interactions occur through complementary bandwagon effects in which benefits accrue from services that complement the main product. Econometric estimation is compared with system dynamics calibration to test a range of diffusion models on historic data, revealing some evidence of bandwagon effects. The model is proposed as a generic structure for market growth in mobile data services in general and as a tentative theory to explain the phenomenon of technology 'hype' cycles. The model leads to broad policy proposals on how to alleviate the start-up problem. Launching products without attending to service quality can mean that consumers become disillusioned whereas ensuring a high quality user experience requires a collaborative and long-term view of ecosystem development. This implies that major players such as handset manufacturers or mobile operators must play a central co-ordinating role. Validation of exploratory models of emerging markets is based more in terms of plausibility and usefulness, given the lack of historic data. A validation framework in the three dimensions of model content, process and outcome provides a holistic and semi-quantitative profile of the utility of generic models. A validation profile is proposed that can be used in a formative role to clarify model purpose and aid planning in model-based interventions.
Subjects/Keywords: 384
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APA (6th Edition):
Arthur, D. J. W. (2008). Diffusion modelling and industry dynamics in mobile telecoms data services. (Doctoral Dissertation). University of Surrey. Retrieved from http://epubs.surrey.ac.uk/843191/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594173
Chicago Manual of Style (16th Edition):
Arthur, Daniel J W. “Diffusion modelling and industry dynamics in mobile telecoms data services.” 2008. Doctoral Dissertation, University of Surrey. Accessed February 28, 2021.
http://epubs.surrey.ac.uk/843191/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594173.
MLA Handbook (7th Edition):
Arthur, Daniel J W. “Diffusion modelling and industry dynamics in mobile telecoms data services.” 2008. Web. 28 Feb 2021.
Vancouver:
Arthur DJW. Diffusion modelling and industry dynamics in mobile telecoms data services. [Internet] [Doctoral dissertation]. University of Surrey; 2008. [cited 2021 Feb 28].
Available from: http://epubs.surrey.ac.uk/843191/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594173.
Council of Science Editors:
Arthur DJW. Diffusion modelling and industry dynamics in mobile telecoms data services. [Doctoral Dissertation]. University of Surrey; 2008. Available from: http://epubs.surrey.ac.uk/843191/ ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594173
13.
Bloore, Peter.
The screenplay business : managing creativity in script development in the contemporary British independent film industry.
Degree: PhD, 2014, University of East Anglia
URL: https://ueaeprints.uea.ac.uk/id/eprint/49837/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614636
► A screenplay is sometimes said to be a blueprint for a film, and its genesis and development is therefore important to our understanding of how…
(more)
▼ A screenplay is sometimes said to be a blueprint for a film, and its genesis and development is therefore important to our understanding of how films are created. Film business studies has traditionally avoided close study of the screenplay development process, perhaps as a result of the film studies emphasis on analysing the text of the completed film, and the auteur theory emphasis on the importance of the director; both of which may have marginalised the study of development and the creativity of development practitioners. Professional screenplay development is a team activity, with creative collaboration between screenwriters, producers, development executives, financiers, and directors. So how does power and creative control shift between members of this team, especially as people arrive or leave? And how does this multiple authorship affect the auteur theory idea that the director is the creative author of the film? This research sets out to open debates around the process and nature of the business of script development, and consider how development practitioners experience, collaborate and participate in the process of screenplay development in the UK today. It uses original interviews, observation and hermeneutic reflection; and asks how cross-disciplinary ideas around creativity, managing creative people, motivation, organisational culture, and team theory could be used to consider how the creative team of writer, producer, director and development executive can work effectively together. It proposes new theories, including defining the independent film value chain and the commitment matrix, analysing changing power relationships during development, and establishing new typologies around film categories and their relationship to funding. The core of this PhD by Prior Publication is the book The Screenplay Business: managing creativity and script development in the film industry. The supporting paper explores the contexts of film industry studies; the film value chain; auteurship and screenplay studies.
Subjects/Keywords: 384
…writing.
10
Section 2: Contexts….
The contexts section firstly looks at the wider macro… …creative industry studies? Adapted from Holt and Perren (2009, p.2), with the
addition… …181-2; and Keat, 2009, 2012). In my
research the concept of value was considered more… …existing work in this field.
2
See Bourdieu’s Distinction (1984), The Field of… …model, rather than the integrated control model of the studios (see the book’s Chapters 2…
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APA ·
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Export
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APA (6th Edition):
Bloore, P. (2014). The screenplay business : managing creativity in script development in the contemporary British independent film industry. (Doctoral Dissertation). University of East Anglia. Retrieved from https://ueaeprints.uea.ac.uk/id/eprint/49837/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614636
Chicago Manual of Style (16th Edition):
Bloore, Peter. “The screenplay business : managing creativity in script development in the contemporary British independent film industry.” 2014. Doctoral Dissertation, University of East Anglia. Accessed February 28, 2021.
https://ueaeprints.uea.ac.uk/id/eprint/49837/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614636.
MLA Handbook (7th Edition):
Bloore, Peter. “The screenplay business : managing creativity in script development in the contemporary British independent film industry.” 2014. Web. 28 Feb 2021.
Vancouver:
Bloore P. The screenplay business : managing creativity in script development in the contemporary British independent film industry. [Internet] [Doctoral dissertation]. University of East Anglia; 2014. [cited 2021 Feb 28].
Available from: https://ueaeprints.uea.ac.uk/id/eprint/49837/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614636.
Council of Science Editors:
Bloore P. The screenplay business : managing creativity in script development in the contemporary British independent film industry. [Doctoral Dissertation]. University of East Anglia; 2014. Available from: https://ueaeprints.uea.ac.uk/id/eprint/49837/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614636
14.
Berisha, Suela.
L'apport des concepts du Web sémantique et normes associées aux échanges inter applicatifs dans un SI d'entreprise ou RECAP (Référentiels et connecteurs a priori) : The contribution of Semantic Web and Associate International Standard to the exchanges between applications of a company information system or RECAP (referential and connector a priori).
Degree: Docteur es, Informatique, 2011, INSA Lyon
URL: http://www.theses.fr/2011ISAL0073
► Le sujet de thèse a été traité dans le cadre d’un Système d’Information d’Entreprise (SIE) contenant un grand volume d’informations, très diverses, circulant au sein…
(more)
▼ Le sujet de thèse a été traité dans le cadre d’un Système d’Information d’Entreprise (SIE) contenant un grand volume d’informations, très diverses, circulant au sein d’un groupe avec une cinquantaine de filiales. Initialement, les sources informatiques de chaque entité stockaient des données structurées, suivant des logiques métiers locales. Les descriptions de ces sources, destinées prioritairement aux informaticiens, se trouvent dans des documents textuels. Elles ne visaient pas le partage et la compréhension des systèmes par les différents types d’acteurs métiers qui fournissent le contenu. C’est également le cas des référentiels métiers, qui contiennent des connaissances métiers fondamentales. Ainsi, la localisation d’informations pertinentes, permettent un aiguillage et un accès aisé aux sources qui répondent aux attentes et aux contraintes des acteurs métiers, devient une problématique principale du SI. Depuis une décennie, la SNCF vise à répondre à cette problématique par une démarche stratégique de gouvernance inscrite dans les processus de l’urbanisme du SI. Nous sommes concernés par mise sous contrôle des référentiels de données métiers, la standardisation et la simplification des échanges inter applicatifs. Malgré cette démarche, les initiatives de partage d’informations et des connaissances métiers restent ponctuelles, fortement dépendantes des motivations personnelles (et non pas métiers) d’acteurs éclairés du SI. Notre objectif est de fournir une vue stratégique sur le partage des connaissances des différents types d’acteurs du SI en favorisant leur collaboration dans le contexte du déroulement d’un processus, ou d’une activité métier. Pour y parvenir, nous proposons une démarche pour la construction d’une couche du SI en s’appuyant sur de nouveaux concepts fonctionnels : le "référentiel de référentiels" et les "connecteurs a priori". Le premier correspond à un référentiel transverse par rapport à un périmètre métier. Le second correspond à des connexions logiques assurant une interopérabilité entre les applications qui ne sont pas conçues pour cohabiter. D’un point de vue technologique, le "référentiel des référentiels" prend ses fondements dans la modélisation et le stockage des connaissances par les démarches sémantiques. Les "connecteurs a priori" puisent leurs apports dans les Services Web Sémantiques. Le sujet de thèse développe des compétences comme les architectures middlewares orientées services, la modélisation sémantique de documents, la modélisation du SI et les techniques de Recherche d’Information (RI). Ce sont autant de sujets qui s’intègrent dans le projet scientifique de l’équipe DRIM (Distribution et Recherche d'Information Multimédia) du département « Données, Connaissances et Services » du laboratoire LIRIS (Laboratoire d’InfoRmatique en Images et Systèmes d’Informations), CNRS UMR 5205.
This thesis came about a very large and complex Enterprise Information System (EIS) containing a huge amount of information that moves through a company consisted of a main group and about fifty…
Advisors/Committee Members: Pinon, Jean-Marie (thesis director), Rumpler, Béatrice (thesis director).
Subjects/Keywords: Informatique; Système d'information; Modélisation; Référentiel; Connecteur à priori; Web services; Urbanisation; Information Technology; Information system; Modelling; Enterprise Repository; A priori connector; Planning; 658.403 801 107 2
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APA ·
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MLA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Berisha, S. (2011). L'apport des concepts du Web sémantique et normes associées aux échanges inter applicatifs dans un SI d'entreprise ou RECAP (Référentiels et connecteurs a priori) : The contribution of Semantic Web and Associate International Standard to the exchanges between applications of a company information system or RECAP (referential and connector a priori). (Doctoral Dissertation). INSA Lyon. Retrieved from http://www.theses.fr/2011ISAL0073
Chicago Manual of Style (16th Edition):
Berisha, Suela. “L'apport des concepts du Web sémantique et normes associées aux échanges inter applicatifs dans un SI d'entreprise ou RECAP (Référentiels et connecteurs a priori) : The contribution of Semantic Web and Associate International Standard to the exchanges between applications of a company information system or RECAP (referential and connector a priori).” 2011. Doctoral Dissertation, INSA Lyon. Accessed February 28, 2021.
http://www.theses.fr/2011ISAL0073.
MLA Handbook (7th Edition):
Berisha, Suela. “L'apport des concepts du Web sémantique et normes associées aux échanges inter applicatifs dans un SI d'entreprise ou RECAP (Référentiels et connecteurs a priori) : The contribution of Semantic Web and Associate International Standard to the exchanges between applications of a company information system or RECAP (referential and connector a priori).” 2011. Web. 28 Feb 2021.
Vancouver:
Berisha S. L'apport des concepts du Web sémantique et normes associées aux échanges inter applicatifs dans un SI d'entreprise ou RECAP (Référentiels et connecteurs a priori) : The contribution of Semantic Web and Associate International Standard to the exchanges between applications of a company information system or RECAP (referential and connector a priori). [Internet] [Doctoral dissertation]. INSA Lyon; 2011. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2011ISAL0073.
Council of Science Editors:
Berisha S. L'apport des concepts du Web sémantique et normes associées aux échanges inter applicatifs dans un SI d'entreprise ou RECAP (Référentiels et connecteurs a priori) : The contribution of Semantic Web and Associate International Standard to the exchanges between applications of a company information system or RECAP (referential and connector a priori). [Doctoral Dissertation]. INSA Lyon; 2011. Available from: http://www.theses.fr/2011ISAL0073
15.
Chabert, Maxime.
Constraint programming models for conceptual clustering : Application to an erp configuration problem : Modèles de programmation par contraintes pour le clustering conceptuel : Application à un problème de configuration d'ERP.
Degree: Docteur es, Informatique, 2018, Lyon
URL: http://www.theses.fr/2018LYSEI118
► Les ERP (Enterprise Resource Planning) sont incontournables dans les systèmes d'information des sociétés industrielles: ils jouent un rôle crucial pour automatiser et suivre leurs processus…
(more)
▼ Les ERP (Enterprise Resource Planning) sont incontournables dans les systèmes d'information des sociétés industrielles: ils jouent un rôle crucial pour automatiser et suivre leurs processus afin d'améliorer leur compétitivité. Un ERP est un logiciel générique qui est utilisé par plusieurs sociétés industrielles ayant des besoins et des processus différents. C'est pourquoi de nombreux paramètres permettent d'adapter le fonctionnement du système aux besoins d'une société. Le déploiement d'un ERP, qui vise à paramétrer le système en fonction des besoins collectés, est donc une tâche complexe qui requiert une profonde expertise du système mais aussi du métier de l'entreprise industrielle. Infologic est une société qui développe et installe son propre ERP appelé Copilote. La difficulté liée au déploiement de Copilote dans une société industrielle est un réel frein pour la croissance d'Infologic et réduire la complexité du paramétrage de Copilote est un enjeu vital pour Infologic. C'est pourquoi nous avons étudié le processus de déploiement de Copilote et particulièrement la phase de paramétrage du système. Nous proposons une approche visant à extraire, depuis l'ensemble des paramétrages existants, un catalogue de paramétrages correspondant à des besoins fonctionnels précédemment rencontrés afin de les réutiliser lors des prochains déploiements de Copilote. Nous proposons d’utiliser la programmation par contraintes pour cela, afin de pouvoir facilement personnaliser les solutions calculées en ajoutant des contraintes et des critères d’optimisation variés. Nous introduisons de nouveaux modèles à base de contraintes pour résoudre des problèmes de clustering conceptuel, ainsi qu'une contrainte globale pour le problème de couverture exacte avec plusieurs algorithmes de propagation. Nous montrons qu'elle permet de modéliser facilement des problèmes de clustering conceptuel, et de les résoudre plus efficacement que les approches déclaratives de l’état de l’art.
Enterprise Resource Planning (ERP) systems are essential for industrial companies to automatize and monitor their business processes in order to boost their competitiveness. ERP systems are generic software designed to serve a large variety of companies with different business processes. Therefore, they have many configuration options to support various business processes used in different companies. The implementation process of an ERP system consists in assigning values to ERP parameters according to the company requirements: It determines the exact operations and processes supported by the system in the specific company. Infologic is a French company that develops and integrates their own ERP system called Copilote. It has thousands of parameters that are used to adapt it as precisely as possible to customer requirements. However, this flexibility makes the implementation of Copilote a time consuming task that requires a deep knowledge of its functionalities and parameters. Reducing the complexity of the implementation of Copilote is a critical issue for Infologic…
Advisors/Committee Members: Solnon, Christine (thesis director).
Subjects/Keywords: Informatique; ERP - Enterprise Ressource Planning; Programmation par contraintes; Clustering conceptuel; Information Technology; ERP - Enterprise resources planning; Constraint programming; Conceptual clustering; 658.403 801 107 2
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APA (6th Edition):
Chabert, M. (2018). Constraint programming models for conceptual clustering : Application to an erp configuration problem : Modèles de programmation par contraintes pour le clustering conceptuel : Application à un problème de configuration d'ERP. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2018LYSEI118
Chicago Manual of Style (16th Edition):
Chabert, Maxime. “Constraint programming models for conceptual clustering : Application to an erp configuration problem : Modèles de programmation par contraintes pour le clustering conceptuel : Application à un problème de configuration d'ERP.” 2018. Doctoral Dissertation, Lyon. Accessed February 28, 2021.
http://www.theses.fr/2018LYSEI118.
MLA Handbook (7th Edition):
Chabert, Maxime. “Constraint programming models for conceptual clustering : Application to an erp configuration problem : Modèles de programmation par contraintes pour le clustering conceptuel : Application à un problème de configuration d'ERP.” 2018. Web. 28 Feb 2021.
Vancouver:
Chabert M. Constraint programming models for conceptual clustering : Application to an erp configuration problem : Modèles de programmation par contraintes pour le clustering conceptuel : Application à un problème de configuration d'ERP. [Internet] [Doctoral dissertation]. Lyon; 2018. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2018LYSEI118.
Council of Science Editors:
Chabert M. Constraint programming models for conceptual clustering : Application to an erp configuration problem : Modèles de programmation par contraintes pour le clustering conceptuel : Application à un problème de configuration d'ERP. [Doctoral Dissertation]. Lyon; 2018. Available from: http://www.theses.fr/2018LYSEI118
16.
Mawlawi, Baher.
Random access for dense networks : Design and Analysis of Multiband CSMA/CA : Accès aléatoire pour les réseaux chargés : Conception et Analyse du Multi bande CSMA/CA.
Degree: Docteur es, Traitement du signal et de l'image, 2015, INSA Lyon
URL: http://www.theses.fr/2015ISAL0112
► Les protocoles de communications à accès aléatoires sont des candidats prometteurs pour les futurs systèmes de communications sans fil dédiés aux applications machine à machine…
(more)
▼ Les protocoles de communications à accès aléatoires sont des candidats prometteurs pour les futurs systèmes de communications sans fil dédiés aux applications machine à machine (M2M). Ces méthodes d’accès sont généralement basées sur des techniques d'accès aléatoires mettant en œuvre des concepts simples de sondage de canal et de report de la transmission pour réduire les collisions, tout en évitant l'utilisation d'ordonnanceurs complexes. Parmi les différents protocoles, Carrier sense multiple access/collision avoidance with a Request-To-Send/Clear-To-Send (CSMA/CA-RTS/CTS) est un protocole qui pourrait être adopté pour les scénarios de M2M. Cette approche est efficace pour éviter les collisions entre les paquets de données. Cependant dans le cas d’un réseau très dense, les performances sont dégradées à cause de la forte probabilité de collisions. Pour atténuer cet effet, les collisions entre les messages de contrôles RTS doivent être réduites. Cette thèse propose de résoudre ce problème en divisant le canal commun en sous-canaux pour transmettre les messages de contrôle de demande d’accès au canal ; le canal commun est utilisé dans son ensemble pour la transmission de données. L’ajout d’un degré de liberté pour le message de demande d’accès permet de réduire la probabilité de collision, et donc d’améliorer les performances du système notamment dans des scénarios avec des nombres importants de nœuds souhaitant communiquer. Dans ce travail, nous dérivons ainsi une solution complète de méthode d’accès en s'appuyant sur le CSMA / CA - RTS / CTS et en multiplexant une configuration multi-canal pour les messages RTS et un canal unique pour la transmission de données. Une version améliorée, basée sur l'ordonnancement des utilisateurs, est également étudiée. Un modèle analytique a été développé, analysé et validé par simulations. Celui-ci est une extension du modèle Bianchi. Les performances en termes de débit saturé, de temps de transmission et de la probabilité de rejet de paquets sont discutées. Enfin, les impacts liés à la prise en compte d’une couche physique de type multi porteuses sont discutés dans le dernier chapitre.
Opportunistic protocols are promising candidates for future wireless systems dedicated to machine to machine (M2M) communication. Such protocols are usually based on a random access with simple techniques of medium sensing and deferring to reduce collisions while avoiding the use of complex schedulers. Among different protocols, Carrier sense multiple access/collision avoidance with a Request-To-Send/Clear-To-Send (CSMA/CA-RTS/CTS) is an opportunistic protocol which could be adopted for M2M scenarios. Such approach is efficient to avoid collisions between data packets but in a very dense network, the random access used to send the RTS suffers itself from a high probability of collision which degrades the performance. In order to mitigate this effect, RTS collisions should be reduced. This thesis proposes to address this issue by splitting the common channel in sub-channels for transmitting the RTS…
Advisors/Committee Members: Gorce, Jean-Marie (thesis director).
Subjects/Keywords: Télécommunications; Protocole à accès aléatoire; Communication sans fil; Applications machine à machine - M2M; Réseaux chargés; Réseau multi bande; Telecommunications; Wireless communication; Applications M2M; Dense Network; Multiband network; 621.382 107 2
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APA (6th Edition):
Mawlawi, B. (2015). Random access for dense networks : Design and Analysis of Multiband CSMA/CA : Accès aléatoire pour les réseaux chargés : Conception et Analyse du Multi bande CSMA/CA. (Doctoral Dissertation). INSA Lyon. Retrieved from http://www.theses.fr/2015ISAL0112
Chicago Manual of Style (16th Edition):
Mawlawi, Baher. “Random access for dense networks : Design and Analysis of Multiband CSMA/CA : Accès aléatoire pour les réseaux chargés : Conception et Analyse du Multi bande CSMA/CA.” 2015. Doctoral Dissertation, INSA Lyon. Accessed February 28, 2021.
http://www.theses.fr/2015ISAL0112.
MLA Handbook (7th Edition):
Mawlawi, Baher. “Random access for dense networks : Design and Analysis of Multiband CSMA/CA : Accès aléatoire pour les réseaux chargés : Conception et Analyse du Multi bande CSMA/CA.” 2015. Web. 28 Feb 2021.
Vancouver:
Mawlawi B. Random access for dense networks : Design and Analysis of Multiband CSMA/CA : Accès aléatoire pour les réseaux chargés : Conception et Analyse du Multi bande CSMA/CA. [Internet] [Doctoral dissertation]. INSA Lyon; 2015. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2015ISAL0112.
Council of Science Editors:
Mawlawi B. Random access for dense networks : Design and Analysis of Multiband CSMA/CA : Accès aléatoire pour les réseaux chargés : Conception et Analyse du Multi bande CSMA/CA. [Doctoral Dissertation]. INSA Lyon; 2015. Available from: http://www.theses.fr/2015ISAL0112
17.
Martegoutte, Julien.
Corrélation entre les procédés de fabrication, les propriétés microstructurales et les propriétés mécaniques de couches minces métalliques pour applications microsystèmes : Correlation between manufacturing processes, microstructural properties and mechanical properties of metallic thin films for MEMS applications.
Degree: Docteur es, Electronique, 2012, INSA Lyon
URL: http://www.theses.fr/2012ISAL0033
► L'agence spatiale européenne et le CNES étudient la possibilité d’envoyer des microsystèmes dans l’espace, en particulier pour le gain de masse qu’ils représentent. Afin d’améliorer…
(more)
▼ L'agence spatiale européenne et le CNES étudient la possibilité d’envoyer des microsystèmes dans l’espace, en particulier pour le gain de masse qu’ils représentent. Afin d’améliorer la fiabilité des composants en couches minces dans le temps et leurs performances, il est nécessaire de connaitre leurs propriétés mécaniques. Plusieurs techniques de caractérisation existent, en particulier la nanoindentation qui sollicite les couches minces directement sur substrat. Mais les résultats peuvent être largement influencés par le substrat dans le cas des couches microniques. Les méthodes de traction uniaxiale (CNES) et du gonflement de membranes autoportantes (INL) permettent de s’affranchir des effets du substrat, mais la fabrication de telles structures est complexe et nécessite bon nombre d’étapes technologiques pour retirer le substrat en face arrière. L’objectif de cette thèse est de comprendre le lien qui existe entre les paramètres de fabrication de couches minces métalliques d'or et d'aluminium, leur microstructure, et leurs propriétés mécaniques à l’aide des outils présentés précédemment. Une perspective étant de mieux agir sur les procédés de fabrication afin d’améliorer la fiabilité des composants. Le premier chapitre présente les différentes techniques de dépôt, leur thermodynamique et cinétique, les types de microstructures rapportées dans la littérature, ainsi que la réalisation des structures de test. Le deuxième présente les caractérisations microstructurales, et la corrélation entre les paramètres de dépôt et les propriétés microstructurales est discutée. Le chapitre trois présente les caractérisations mécaniques des couches minces, sur substrat ou autoportantes, par les méthodes de nanoindentation en pointe Berkovich et sphérique, de microtraction et du gonflement de membrane. Le dernier chapitre est consacré aux relations entre les propriétés microstructurales et mécaniques des couches minces métalliques et à l'influence des traitements thermiques.
The European Space Agency and CNES are studying the possibility of sending microsystems in space, especially for the mass gain they represent. To improve the reliability of components, it is necessary to know their mechanical properties. Several characterization techniques exist, especially nanoindentation of thin films on substrates. However, results can be largely influenced by the substrate in the case of micron layers. The methods of uniaxial tension (CNES) and bulge-test (INL) on freestanding specimen are used to eliminate the effects of the substrate, but the fabrication of such structures is complex and requires many technological steps to remove the substrate on the backside. The objective of this thesis is to understand the relationship between manufacturing parameters of thin metal films of gold and aluminum thin films, their microstructure and mechanical properties using the tools described above. The first chapter presents different deposition techniques, their thermodynamics and kinetics, types of microstructures reported in the literature, and…
Advisors/Committee Members: Malhaire, Christophe (thesis director).
Subjects/Keywords: Microélectronique; Microsystème; Couche mince; Conception de microsystèmes; Aluminium; Or; Film mince métallique; Microstructure; Nanoindentation; Microelectronics; Micro System Design; Thin Layer; Aluminum; Gold; 621.381 620 107 2
Record Details
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APA ·
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MLA ·
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APA (6th Edition):
Martegoutte, J. (2012). Corrélation entre les procédés de fabrication, les propriétés microstructurales et les propriétés mécaniques de couches minces métalliques pour applications microsystèmes : Correlation between manufacturing processes, microstructural properties and mechanical properties of metallic thin films for MEMS applications. (Doctoral Dissertation). INSA Lyon. Retrieved from http://www.theses.fr/2012ISAL0033
Chicago Manual of Style (16th Edition):
Martegoutte, Julien. “Corrélation entre les procédés de fabrication, les propriétés microstructurales et les propriétés mécaniques de couches minces métalliques pour applications microsystèmes : Correlation between manufacturing processes, microstructural properties and mechanical properties of metallic thin films for MEMS applications.” 2012. Doctoral Dissertation, INSA Lyon. Accessed February 28, 2021.
http://www.theses.fr/2012ISAL0033.
MLA Handbook (7th Edition):
Martegoutte, Julien. “Corrélation entre les procédés de fabrication, les propriétés microstructurales et les propriétés mécaniques de couches minces métalliques pour applications microsystèmes : Correlation between manufacturing processes, microstructural properties and mechanical properties of metallic thin films for MEMS applications.” 2012. Web. 28 Feb 2021.
Vancouver:
Martegoutte J. Corrélation entre les procédés de fabrication, les propriétés microstructurales et les propriétés mécaniques de couches minces métalliques pour applications microsystèmes : Correlation between manufacturing processes, microstructural properties and mechanical properties of metallic thin films for MEMS applications. [Internet] [Doctoral dissertation]. INSA Lyon; 2012. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2012ISAL0033.
Council of Science Editors:
Martegoutte J. Corrélation entre les procédés de fabrication, les propriétés microstructurales et les propriétés mécaniques de couches minces métalliques pour applications microsystèmes : Correlation between manufacturing processes, microstructural properties and mechanical properties of metallic thin films for MEMS applications. [Doctoral Dissertation]. INSA Lyon; 2012. Available from: http://www.theses.fr/2012ISAL0033
18.
Liu, Jia.
Fabrication and optical simulation of periodic nanostructures and their applications : Fabrication et simulation optique de nanostructures périodiques et leurs applications.
Degree: Docteur es, Électronique, micro et nanoélectronique, optique et laser, 2016, Lyon
URL: http://www.theses.fr/2016LYSEI027
► Les nanostructures périodiques jouent un rôle important dans le domaine des nanotechnologies, en particulier dans le contrôle des photons. Bien qu'il existe de nombreuses techniques…
(more)
▼ Les nanostructures périodiques jouent un rôle important dans le domaine des nanotechnologies, en particulier dans le contrôle des photons. Bien qu'il existe de nombreuses techniques d'usage général pour la fabrication et la simulation optique, nous avons développé une technique de fabrication sur mesure et une méthode de simulation optiques pour les structures périodiques pour accélérer le prototypage à l’échelle du laboratoire et la conception optique. Dans la première partie de cette thèse, nous décrivons une technique lithographique nommée « Laser Interference Lithography » (LIL) à faible coût pour la fabrication de nanostructures périodiques. La technique LIL est combinée avec gravure sèche, gravure humide et technique de gravure électrochimique pour réaliser, respectivement, des trous cylindriques, des pyramides inversées et des réseaux taux de pores bi-périodiques à facteur d’aspect élevé sur le substrat à base de silicium. Les modèles unidimensionnels sur des substrats en verre sont également utilisés comme nanofiltres dans la réalisation de la puce de pré-concentration à faible coût. Dans la deuxième partie, nous décrivons d'abord une méthode de calcul électromagnétique rigoureuse Rigorous Coupled-Wave Analysis (RCWA) conçu pour les structures périodiques. Une description détaillée est donnée pour expliquer la méthode numérique. Ensuite, nous combinons la méthode RCWA et une nouvelle approche proposée de la conception des modèles pseudo-désordonnée pour améliorer le piégeage des photons. A titre d'exemple, nous démontrons que, en ajoutant des structures désordonnées à petite échelle sur des arrangements périodiques à grande échelle, la performance quant à l’absorption des couches minces de silicium peut être grandement améliorée.
Periodic nanostructures play an important role in the domain of nanotechnology, especially in photon control. While there exist many general purpose techniques for fabrication and optical simulation, we show tailored fabrication and optical simulation methods for periodic structures to accelerate lab-scale prototyping and optical design. In the first part of this dissertation, we describe a low-cost lithographic technique named Laser Interference Lithography (LIL) for fabricating periodic nanostructures. LIL technique is combined with dry-etching, wet-etching and electrochemical etching technique to realize, respectively, cylindrical holes, inverted pyramids and high aspect ratio pore arrays on silicon based substrate. The one-dimensional patterns on glass substrates are also used as nanofilters in realizing low-cost preconcentration chip. In the second part, we first describe Rigorous Coupled-Wave Analysis (RCWA), a rigorous electromagnetic calculation method designed for periodic structures. A detailed derivation is given to explain the numerical method. Then, we combine the RCWA method and a new proposed pseudo-disordered patterns design approach to investigate photon control. As an example, we demonstrate that by adding ‘appropriate’ engineered fine stripes to each long period…
Advisors/Committee Members: Orobtchouk, Régis (thesis director).
Subjects/Keywords: Electronique; Nano électronique; Nanostructure; Fabrication de nanostructures; Laser interference lithography - LIL; Photonique; Photovoltaïsme; Electronics; Nano Electronics; Nanostructure; Nanostructure making; Laser interference lithography - LIL; Photonics; Photovoltaics; 621.381 620 107 2
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Liu, J. (2016). Fabrication and optical simulation of periodic nanostructures and their applications : Fabrication et simulation optique de nanostructures périodiques et leurs applications. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2016LYSEI027
Chicago Manual of Style (16th Edition):
Liu, Jia. “Fabrication and optical simulation of periodic nanostructures and their applications : Fabrication et simulation optique de nanostructures périodiques et leurs applications.” 2016. Doctoral Dissertation, Lyon. Accessed February 28, 2021.
http://www.theses.fr/2016LYSEI027.
MLA Handbook (7th Edition):
Liu, Jia. “Fabrication and optical simulation of periodic nanostructures and their applications : Fabrication et simulation optique de nanostructures périodiques et leurs applications.” 2016. Web. 28 Feb 2021.
Vancouver:
Liu J. Fabrication and optical simulation of periodic nanostructures and their applications : Fabrication et simulation optique de nanostructures périodiques et leurs applications. [Internet] [Doctoral dissertation]. Lyon; 2016. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2016LYSEI027.
Council of Science Editors:
Liu J. Fabrication and optical simulation of periodic nanostructures and their applications : Fabrication et simulation optique de nanostructures périodiques et leurs applications. [Doctoral Dissertation]. Lyon; 2016. Available from: http://www.theses.fr/2016LYSEI027
19.
Seiss, Birgit.
Etudes structurales et morphologiques et réalisation d’épitaxies à base de Si pour dispositifs électroniques : Structure and morphology study of Si-based epitaxies for electronic devices.
Degree: Docteur es, Matériaux, 2013, INSA Lyon
URL: http://www.theses.fr/2013ISAL0152
► Dans les technologies d'aujourd'hui, l’épitaxie est une technique indispensable pour la fabrication des composants. Avec la diminution continue de la taille des transistors les objets…
(more)
▼ Dans les technologies d'aujourd'hui, l’épitaxie est une technique indispensable pour la fabrication des composants. Avec la diminution continue de la taille des transistors les objets epitaxiés rétrécissent aussi. Par conséquence, des effets morphologiques qui sont négligeables à grande échelle, doivent être considéré dans les petits motifs, et de plus des anisotropies doivent être prises en compte. C'est pour cela que cette thèse est consacrée à l'étude de la morphologie en fonction de la taille et de l'orientation des motifs. La caractérisation de la morphologie du SiGe comme déposé sur des motifs orientés selon <100> et <110> nous conduit à introduire de nouveaux effets de charge, pas encore reportés dans la littérature. Après avoir étudié en profondeur la morphologie après croissance, les épitaxies sont soumises à des températures légèrement supérieures à celle de dépôt, et les changements sont discutés en fonction de l'orientation et de la largeur des lignes. Des recuits sous H2 à des températures plus élevées sont réalisés sur des motifs différents ce qui permet l'observation des effets morphologiques en bord et en coin de motif. Ces effets dominent la morphologie globale des couches epitaxiées quand la taille des motifs diminue. En particulier, la stabilité des lignes de Si et SiGe lors des recuits est étudiée, ce qui permet de déterminer les facteurs importants pour la stabilité des lignes. Dans des expériences supplémentaires un procédé est développé pour augmenter la stabilité thermique des couches SiGe. En outre, l'épitaxie cyclique - nécessaire pour réaliser les sources/drains des CMOS avancés - est discutée. L'influence des changements dans l'étape de gravure d'un procédé cyclique de Si, en gardant l'étape de dépôt inchangée, est étudiée pour des motifs orientés selon <100>. Nous avons trouvé des conditions dans lesquelles la couche n'est plus continue. Des expériences pour étudier la gravure séparément permettent d'expliquer les phénomènes observés.
In current technology nodes, epitaxy is an indispensable technique in device fabrication. With the continuous decrease of the transistor size, the epitaxial objects shrink as well. As a consequence, morphology effects which can be neglected at the large scale, have to be considered in small patterns and in addition, anisotropies have to be taken into account. Therefore, this thesis is dedicated to morphology studies as a function of pattern size and orientation. The characterization of the SiGe morphology in the as-deposited state on <100> and <110> oriented patterns leads to the introduction of new loading effects, which have not been reported elsewhere so far. After having studied thoroughly the as-deposited morphology, the epitaxial layers are exposed to a temperature slightly higher than the deposition temperature and the changes are discussed as a function of line width and orientation. H2 annealing at higher temperatures are performed with various Si and SiGe patterns leading to the observation of morphology effects at the pattern edges and corners.…
Advisors/Committee Members: Brémond, Georges (thesis director).
Subjects/Keywords: Electronique; Matériaux pour l'électronique; Epitaxie; Epitaxie sélective; Anisotropie; Morphologie SiGe; Recuit sous H2; Electronics; Electronic Material; Epitaxy; Selective epitaxy; Anisotropy; SiGe morphology; H2 annealing; 621.381 620 107 2
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APA ·
Chicago ·
MLA ·
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Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Seiss, B. (2013). Etudes structurales et morphologiques et réalisation d’épitaxies à base de Si pour dispositifs électroniques : Structure and morphology study of Si-based epitaxies for electronic devices. (Doctoral Dissertation). INSA Lyon. Retrieved from http://www.theses.fr/2013ISAL0152
Chicago Manual of Style (16th Edition):
Seiss, Birgit. “Etudes structurales et morphologiques et réalisation d’épitaxies à base de Si pour dispositifs électroniques : Structure and morphology study of Si-based epitaxies for electronic devices.” 2013. Doctoral Dissertation, INSA Lyon. Accessed February 28, 2021.
http://www.theses.fr/2013ISAL0152.
MLA Handbook (7th Edition):
Seiss, Birgit. “Etudes structurales et morphologiques et réalisation d’épitaxies à base de Si pour dispositifs électroniques : Structure and morphology study of Si-based epitaxies for electronic devices.” 2013. Web. 28 Feb 2021.
Vancouver:
Seiss B. Etudes structurales et morphologiques et réalisation d’épitaxies à base de Si pour dispositifs électroniques : Structure and morphology study of Si-based epitaxies for electronic devices. [Internet] [Doctoral dissertation]. INSA Lyon; 2013. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2013ISAL0152.
Council of Science Editors:
Seiss B. Etudes structurales et morphologiques et réalisation d’épitaxies à base de Si pour dispositifs électroniques : Structure and morphology study of Si-based epitaxies for electronic devices. [Doctoral Dissertation]. INSA Lyon; 2013. Available from: http://www.theses.fr/2013ISAL0152
20.
Paredes-Saez, Victorien.
Procédés d'épitaxie spécifiques au CMOS 14 et 10 nm : Morphologie et structure : Si-based epitaxy processes for 14 and 10 nm CMOS technologies : Morphology and structure.
Degree: Docteur es, Matériaux, 2017, Lyon
URL: http://www.theses.fr/2017LYSEI032
► Dans les technologies avancées, l’épitaxie des matériaux à base de silicium devient de plus en plus critique et les effets morphologiques importants. Les traitements thermiques…
(more)
▼ Dans les technologies avancées, l’épitaxie des matériaux à base de silicium devient de plus en plus critique et les effets morphologiques importants. Les traitements thermiques ainsi que le dopage peuvent altérer la morphologie des épitaxies dégradant de façon considérable les performances des dispositifs. Les travaux de thèse ont pour objectifs de comprendre et résoudre ces problématiques, ils concernent donc l’étude de la morphologie et des forts dopages des épitaxies dans les motifs de petites tailles des technologies CMOS 14 et 10 nm. Nous avons étudié l’influence des conditions de recuit sous H2 sur la morphologie des épitaxies. Ceci a conduit à la détermination de la cinétique d’arrondissement thermique dans les petits motifs (100 nm et moins). D’après une analyse de la cinétique, deux énergies ont été identifiées : 2,9 eV et 7,7 eV. L’énergie de 2,9 eV montre qu’aux hautes températures, la diffusion de surface est le principal mécanisme de l’arrondissement thermique. Aux faibles températures, l’augmentation de la couverture d’hydrogène limite encore plus cette diffusion, augmentant fortement l’énergie obtenue. Nous avons observé que la pression du gaz porteur et la nature de celui-ci ont un impact important sur la diffusion de surface et modulent donc la cinétique d’arrondissement thermique. La caractérisation par microscopie à force atomique de croissances sélectives de couches SiGe dopées bore, montre que le bore modifie grandement la morphologie de croissance, ainsi que l’arrondissement thermique. Pour un même recuit, un motif dopé s’arrondit beaucoup plus rapidement qu’un motif non dopé. Les épitaxies développées au cours de ces travaux ont été intégrées avec succès dans les sources/drains du CMOS 14 nm. Selon le besoin, les épitaxies peuvent soit présenter de larges facettes bien définies soit aucune facette, et cela grâce à un procédé adéquat que ce travail a permis de proposer et développer
In advanced technologies, the Si-based materials epitaxy becomes more and more challenging and the morphological effects very important. The thermal treatments as well as the doping may degrade the epitaxies’ morphology resulting in considerably damaging the devices’ performances. The works presented in this thesis, aim at understanding and solving these problematics. Thus, they are focused on the study of the epitaxies’ morphology and high doping in the small patterns of the 10 and 14 nm CMOS technologies. The influence of the H2 annealing conditions on the morphology was studied. This led to determine the thermal rounding kinetics in small patterns. According to a kinetics analysis, two energies were identified: 2.9 eV and 7.7 eV. The 2.9 eV energy shows that at high temperatures, the surface diffusion is the thermal rounding main mechanism. At low temperatures, the hydrogen coverage’s increase limits even more this diffusion, greatly increasing the energy obtained. It was observed that the carrier gas pressure and its nature have a strong impact on the surface diffusion and thus modify the thermal rounding…
Advisors/Committee Members: Brémond, Georges (thesis director).
Subjects/Keywords: Matériaux; Matériaux à base silicium; Epitaxie; Morphologie; Dépot chimique en phase vapeur; Dopage; Materials; Silicium based materials; Epitaxy; Morphology; Chemical vapor deposition; Doping; 621.381 620 107 2
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APA (6th Edition):
Paredes-Saez, V. (2017). Procédés d'épitaxie spécifiques au CMOS 14 et 10 nm : Morphologie et structure : Si-based epitaxy processes for 14 and 10 nm CMOS technologies : Morphology and structure. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2017LYSEI032
Chicago Manual of Style (16th Edition):
Paredes-Saez, Victorien. “Procédés d'épitaxie spécifiques au CMOS 14 et 10 nm : Morphologie et structure : Si-based epitaxy processes for 14 and 10 nm CMOS technologies : Morphology and structure.” 2017. Doctoral Dissertation, Lyon. Accessed February 28, 2021.
http://www.theses.fr/2017LYSEI032.
MLA Handbook (7th Edition):
Paredes-Saez, Victorien. “Procédés d'épitaxie spécifiques au CMOS 14 et 10 nm : Morphologie et structure : Si-based epitaxy processes for 14 and 10 nm CMOS technologies : Morphology and structure.” 2017. Web. 28 Feb 2021.
Vancouver:
Paredes-Saez V. Procédés d'épitaxie spécifiques au CMOS 14 et 10 nm : Morphologie et structure : Si-based epitaxy processes for 14 and 10 nm CMOS technologies : Morphology and structure. [Internet] [Doctoral dissertation]. Lyon; 2017. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2017LYSEI032.
Council of Science Editors:
Paredes-Saez V. Procédés d'épitaxie spécifiques au CMOS 14 et 10 nm : Morphologie et structure : Si-based epitaxy processes for 14 and 10 nm CMOS technologies : Morphology and structure. [Doctoral Dissertation]. Lyon; 2017. Available from: http://www.theses.fr/2017LYSEI032
21.
Su, Ziyi.
Application de gestion des droits numériques au système d'information d'entreprise : Applying Digital Rights Management to Corporate Information Systems.
Degree: Docteur es, Informatique, 2012, INSA Lyon
URL: http://www.theses.fr/2012ISAL0027
► Pour faire face aux enjeux d’une économie mondialisée et aux fluctuations du marché, les entreprises (et principalement les PMEs) doivent développer de nouvelles stratégies de…
(more)
▼ Pour faire face aux enjeux d’une économie mondialisée et aux fluctuations du marché, les entreprises (et principalement les PMEs) doivent développer de nouvelles stratégies de collaboration et d’organisation en réseau permettant de s’intéresser effectivement au réseau de création de valeur (et non pas se limiter à une simple organisation de chaîne de valeur) plus en rapport avec le contexte économique « blue ocean » visant le développement de produits et services innovants. Actuellement, ces réseaux de collaborations sont basés sur des relations de confiance et des communautés bien identifiées. Pour passer à une collaboration à très grande échelle, il importe d’accroître l’agilité et l’interopérabilité des entreprises et de leurs systèmes d’information pour permettre leur interconnexion. Cette stratégie de collaboration pose le problème d’une gestion de la sécurité « de bout en bout » pendant tout le cycle de vie des informations et processus partagés. Or les approches traditionnelles de sécurité ne proposent qu’une protection « statique » et « instantanée » ce qui ne permet pas de répondre aux contraintes de gestion des usage et d’adaptation dynamique requises par les organisations collaboratives. Pour répondre à ces enjeux, nous proposons d’adapter les approches de gestion des droits numériques (DRM) aux systèmes d’information. Après avoir proposé une architecture semi-distribuée de gestion des droits d’usage, nous avons proposé un modèle de politique de sécurité intégrant les droits d’usage et les obligations associées. Ceci nous a conduits à définir une syntaxe et une sémantique adaptée pour enrichir les politiques traditionnelles. Nos travaux ont porté ensuite sur la prise en compte de la dimension collaborative. Dans ce cadre nous avons proposé une algèbre d’intégration permettant de gérer la composition des politiques en fonction de l’ajout ou du retrait de partenaires dans l’organisation en analysant les processus métiers mis en œuvre par la collaboration. Enfin, notre architecture a été validée par un prototype incluant un moteur de négociation (construit sur l’outil «SUN XACML implementation»), un moteur d'agrégation s'appuyant sur JAVA DOM et JDOM et une composante d'analyse de contexte.
To fit the globalised economical environment, enterprises, and mostly SMEs, have to develop new networked and collaborative strategies, focusing on networked value creation (instead of the classical value chain vision), fitting the blue ocean context for innovative products and service development. Such collaborative networks are by now often based on trusted and well known communities. Developing large scale networked and collaborative strategies involve increasing both enterprise and information system agility and interoperability in order to allow their interconnection. This requires paying attention on an end-to end security and on the way information and process are used during their full life-cycle. As traditional security approaches and methodologies provide only an “instant” and rather static protection, they do…
Advisors/Committee Members: Biennier, Frédérique (thesis director).
Subjects/Keywords: Informatique; Système d'information; Sécurité informatique; Gestion des droits numériques; Service web; Information Technology; Information system; Security; Digital right management; Web service; 658.403 801 107 2
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APA ·
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Manager
APA (6th Edition):
Su, Z. (2012). Application de gestion des droits numériques au système d'information d'entreprise : Applying Digital Rights Management to Corporate Information Systems. (Doctoral Dissertation). INSA Lyon. Retrieved from http://www.theses.fr/2012ISAL0027
Chicago Manual of Style (16th Edition):
Su, Ziyi. “Application de gestion des droits numériques au système d'information d'entreprise : Applying Digital Rights Management to Corporate Information Systems.” 2012. Doctoral Dissertation, INSA Lyon. Accessed February 28, 2021.
http://www.theses.fr/2012ISAL0027.
MLA Handbook (7th Edition):
Su, Ziyi. “Application de gestion des droits numériques au système d'information d'entreprise : Applying Digital Rights Management to Corporate Information Systems.” 2012. Web. 28 Feb 2021.
Vancouver:
Su Z. Application de gestion des droits numériques au système d'information d'entreprise : Applying Digital Rights Management to Corporate Information Systems. [Internet] [Doctoral dissertation]. INSA Lyon; 2012. [cited 2021 Feb 28].
Available from: http://www.theses.fr/2012ISAL0027.
Council of Science Editors:
Su Z. Application de gestion des droits numériques au système d'information d'entreprise : Applying Digital Rights Management to Corporate Information Systems. [Doctoral Dissertation]. INSA Lyon; 2012. Available from: http://www.theses.fr/2012ISAL0027
University of Sheffield
22.
Apetrei, Razvan.
Numerical prediction and characterization of shock-buffet in transport aircraft.
Degree: PhD, 2019, University of Sheffield
URL: http://etheses.whiterose.ac.uk/25789/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798097
► Computational Fluid Dynamics (CFD) simulations are frequently used in the aerospace industry to help reduce development times by cutting down on the need of extensive…
(more)
▼ Computational Fluid Dynamics (CFD) simulations are frequently used in the aerospace industry to help reduce development times by cutting down on the need of extensive windtunnel campaigns. However, although design-point aerodynamics are well predicted, edge of the envelope scenarios dominated by non-linear fluid phenomena can lead to uncertainties in the accuracy of the results produced. This work addresses the use of Reynolds-averaged Navier-Stokes (RANS) based simulations in the prediction of unsteady shock-buffet phenomenon. Three studies are conducted: a 2D validation study, a 3D validation study, and the pinnacle of this work which presents a novel shock-buffet prediction on an industrially-relevant aircraft confguration. Two dimensional shock-buffet predictions are presented as a confrmation of previous available knowledge. The dependency on turbulence modelling approaches is evident, with new results showing that the full Reynolds Stress Model (RSM) is a more appropriate closure to the RANS equations than other typically used eddy-viscosity-based models. However, this implies additional computational costs (due to increased number of equations solved), and inherited challenges associated with solver stability. RANS-based simulations are then applied to a 3D confguration: the NASA Common Research Model (CRM) wing-body test case. Complementary results to the AIAA CFD Drag Prediction Workshop are produced. Novel results, outside the Drag Prediction Workshop envelope, investigate the development and expansion of the shock-induced boundary layer separation on the NASA CRM wing, however the steady RANS approach fails to accurately predict this due to unsteady effects which are not accounted for. Unsteady simulations in the shock-buffet regime of the wing-body NASA CRM are then presented as the main novel contribution of this work. The complexity of the phenomenon is revealed by unsteady shock oscillations coupled with shock-induced separation and vortex shedding. The presence of shock-buffet cells is detected and helps understand shock dynamics. A frequency analysis reveals the presence of multiple peak frequencies. A qualitative comparison with experimental observation show similarity in the physics produced. Finally, to further investigate the shock-buffet phenomenon, the effects of changing the Reynolds number are presented. Through industrial relevance, the current work can lead to decision making in the development of the future generation of aircraft.
Subjects/Keywords: 621
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APA (6th Edition):
Apetrei, R. (2019). Numerical prediction and characterization of shock-buffet in transport aircraft. (Doctoral Dissertation). University of Sheffield. Retrieved from http://etheses.whiterose.ac.uk/25789/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798097
Chicago Manual of Style (16th Edition):
Apetrei, Razvan. “Numerical prediction and characterization of shock-buffet in transport aircraft.” 2019. Doctoral Dissertation, University of Sheffield. Accessed February 28, 2021.
http://etheses.whiterose.ac.uk/25789/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798097.
MLA Handbook (7th Edition):
Apetrei, Razvan. “Numerical prediction and characterization of shock-buffet in transport aircraft.” 2019. Web. 28 Feb 2021.
Vancouver:
Apetrei R. Numerical prediction and characterization of shock-buffet in transport aircraft. [Internet] [Doctoral dissertation]. University of Sheffield; 2019. [cited 2021 Feb 28].
Available from: http://etheses.whiterose.ac.uk/25789/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798097.
Council of Science Editors:
Apetrei R. Numerical prediction and characterization of shock-buffet in transport aircraft. [Doctoral Dissertation]. University of Sheffield; 2019. Available from: http://etheses.whiterose.ac.uk/25789/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798097
University of Sheffield
23.
Gosliga, J. S.
On the efficiency of multi-source energy harvesters.
Degree: PhD, 2019, University of Sheffield
URL: http://etheses.whiterose.ac.uk/25587/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798064
► Energy harvesters can be used to provide small amounts of power in remote locations. Applications include powering wireless sensor networks and powering microelectromechanical systems. A…
(more)
▼ Energy harvesters can be used to provide small amounts of power in remote locations. Applications include powering wireless sensor networks and powering microelectromechanical systems. A wealth of different designs exists for harvesting energy from different sources, including designs which harvest from multiple sources simultaneously. However, there are no universally accepted metrics for assessing the performance of energy harvesters; this can make it impossible to compare designs in any meaningful way. The first part of this thesis develops a domain-neutral framework for describing and analysing the behaviour of energy harvesters. This involves introducing a system of dimensionally consistent analogies into energy harvesting. Using this domain-neutral and dimensionally consistent framework, it is possible to come up with general expressions for the behaviour of single-source energy harvesting systems. This approach is then validated experimentally for single-source energy harvesters. The second part of this thesis involves extending the theoretical analysis to multi-source energy harvesters. Using the system of analogies defined in the first part of the thesis it is possible to create an n-degree-of-freedom matrix representation of a multi-source energy harvester. This enables us to derive expressions which are valid for both single-source and multi-source energy harvesters. The expressions for the maximum power absorbed by an energy harvesting device are shown to be independent of the number of sources, as well as any static coupling or coupling through material effects (e.g. piezoelectric). Numerical simulations are used to explore the validity of these expressions for various system configurations driven with a mixed stochastic-deterministic input signal. From the results of these numerical simulations, a practical approach for estimating the efficiency of an energy harvester using the maximum power absorbed as a theoretical limit is described. The third part of this thesis describes experiments which validate the theoretical analysis. These experiments are used to provide an example of how to calculate and compare the efficiency of energy harvesting designs.
Subjects/Keywords: 621
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APA (6th Edition):
Gosliga, J. S. (2019). On the efficiency of multi-source energy harvesters. (Doctoral Dissertation). University of Sheffield. Retrieved from http://etheses.whiterose.ac.uk/25587/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798064
Chicago Manual of Style (16th Edition):
Gosliga, J S. “On the efficiency of multi-source energy harvesters.” 2019. Doctoral Dissertation, University of Sheffield. Accessed February 28, 2021.
http://etheses.whiterose.ac.uk/25587/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798064.
MLA Handbook (7th Edition):
Gosliga, J S. “On the efficiency of multi-source energy harvesters.” 2019. Web. 28 Feb 2021.
Vancouver:
Gosliga JS. On the efficiency of multi-source energy harvesters. [Internet] [Doctoral dissertation]. University of Sheffield; 2019. [cited 2021 Feb 28].
Available from: http://etheses.whiterose.ac.uk/25587/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798064.
Council of Science Editors:
Gosliga JS. On the efficiency of multi-source energy harvesters. [Doctoral Dissertation]. University of Sheffield; 2019. Available from: http://etheses.whiterose.ac.uk/25587/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798064
University of Sheffield
24.
Garwood, Tom L.
Closing the performance gap in building energy modelling through digital survey methods and automated reconstruction.
Degree: PhD, 2019, University of Sheffield
URL: http://etheses.whiterose.ac.uk/25583/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794218
► Against the backdrop of increasing global efforts to mitigate the effects of climate change there has been a large focus on the Built Environment. The…
(more)
▼ Against the backdrop of increasing global efforts to mitigate the effects of climate change there has been a large focus on the Built Environment. The low level of building stock turnover in the UK, estimated between 1 3% per annum, has reinforced the importance of robust retrofit programmes to meet legislated targets [1,2]; Experts predict that the majority of existing UK buildings will still be in use in 2050 [3]. Residential and commercial buildings account for approximately 20% of energy end use globally with UK industry building services such as space heating and lighting account for between 6-56% of overall building energy use, depending on sector [4]. Building Energy Modelling and Simulation (BEMS) software is used to assess the energy performance of a building based on knowledge of its construction, design, use and location. While design data is readily available for new buildings, existing buildings, that are in need of retrofit, tend to have limited as-built building data. This requires a collection of data through site surveys and manual creation of building models; This is a time consuming and expensive activity. The aim of this research was "Develop a scientific method to remove barriers to urban scale Building Energy Modelling and Simulation (BEMS) using pattern recognition software to extract built forms from large data sets". This research has developed a process of rapid geometry generation for BEMS applications to substantially improve this workflow. Following an internal site survey, a Point Cloud was produced of a case-study building. This was automatically processed to create recognisable building geometry for BEMS applications that achieved time savings of 85% over traditional methods. It was identified that internal survey methods present limitations to the automated reconstruction process and that existing offerings for UAV mounted survey equipment required high capital expenditure. A low-cost prototype for external scanning underwent initial development and identified areas for further development. The geometry that was reconstructed via internal survey data was simulated in BEMS and compared against measured energy data. The annual energy use was predicted to within 6% of the measured energy data. Limitations to a full reconstruction led to a hybrid approach being conducted. The hybrid approach predicted annual energy use to within 4% of measured data and met industrial validation requirements. The research conducted has demonstrated that improvements to the BEMS workflow can be achieved and in doing so it can contribute to the reduction in emissions from the Built Environment.
Subjects/Keywords: 621
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APA (6th Edition):
Garwood, T. L. (2019). Closing the performance gap in building energy modelling through digital survey methods and automated reconstruction. (Doctoral Dissertation). University of Sheffield. Retrieved from http://etheses.whiterose.ac.uk/25583/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794218
Chicago Manual of Style (16th Edition):
Garwood, Tom L. “Closing the performance gap in building energy modelling through digital survey methods and automated reconstruction.” 2019. Doctoral Dissertation, University of Sheffield. Accessed February 28, 2021.
http://etheses.whiterose.ac.uk/25583/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794218.
MLA Handbook (7th Edition):
Garwood, Tom L. “Closing the performance gap in building energy modelling through digital survey methods and automated reconstruction.” 2019. Web. 28 Feb 2021.
Vancouver:
Garwood TL. Closing the performance gap in building energy modelling through digital survey methods and automated reconstruction. [Internet] [Doctoral dissertation]. University of Sheffield; 2019. [cited 2021 Feb 28].
Available from: http://etheses.whiterose.ac.uk/25583/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794218.
Council of Science Editors:
Garwood TL. Closing the performance gap in building energy modelling through digital survey methods and automated reconstruction. [Doctoral Dissertation]. University of Sheffield; 2019. Available from: http://etheses.whiterose.ac.uk/25583/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794218
University of Sheffield
25.
Reid, Anthony.
Strobo-strain : stroboscopic neutron and X-ray strain measurements in dynamically loaded engineering components.
Degree: PhD, 2019, University of Sheffield
URL: http://etheses.whiterose.ac.uk/25545/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794211
► Increasing awareness of the impact that fossil fuel power generation has taken on the environment has driven intensive exploration of low carbon alternatives, such as…
(more)
▼ Increasing awareness of the impact that fossil fuel power generation has taken on the environment has driven intensive exploration of low carbon alternatives, such as wind energy. Whilst wind power generation has become a growing resource for meeting the demands of ever- increasing global energy consumption, wind technology has demonstrated reliability issues, mainly due to the stochastic nature of wind conditions. Consequently, downtime associated with unexpected component failure is negatively affecting profit for wind turbine operators. A major contributor towards wind turbine downtime is the premature failure of gearbox bearings, and whilst typically many factors can contribute towards accelerated damage, overloading is believed to be a key driver. Overload events occur due to inertial effects within the drive train, with plastic deformation in the static bearing raceway suggested to be a significant influence on damage propagation, however the mechanism by which this occurs is relatively unknown. Non-destructive testing approaches, for example synchrotron X-ray and neutron diffraction techniques, have demonstrated the potential for characterising damage in engineering components, and with further development offer the potential for investigating the failure initiation mechanism present in the aforementioned wind turbine bearing and other similar components. This project therefore focuses on the development of such techniques, specifically looking at the advancement of stroboscopic diffraction and neutron imaging methods, taking the wind turbine gearbox bearing as an exemplar component for this study. A novel stroboscopic technique has been incorporated into a custom-built bearing rig, permitting the measurement of time-resolved subsurface strains in dynamic bearings. Prior to testing, bearing samples were exposed to significant overloading, with the aim of reducing experimental times to those appropriate for neutron and X-ray investigations, whilst also creating a specific location to be examined that is more prone to damage. The stroboscopic technique was used to successfully measure dynamic subsurface strain when contact stresses were at a maximum magnitude, whereby the rolling element was in contact with the overloaded region. Additionally, the benefit of using eventmode data acquisition during the neutron diffraction experiment, demonstrated the capability of stroboscopic neutron diffraction for analysing cyclic strains associated with rolling contact fatigue. Neutron imaging methods for damage characterisation are also being explored, with neutron Bragg edge transmission imaging becoming an increasingly popular technique for measuring throughaveraged elastic strains. To aid development of this technique for the purpose of evaluating damage, an in situ fatigue experiment was performed, whereby crack nucleation and propagation in a notched sample was successfully detected. Neutron computed tomography was also applied postfatigue, successfully permitting visualisation of the crack. Having managed to evaluate…
Subjects/Keywords: 621
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APA ·
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Export
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Manager
APA (6th Edition):
Reid, A. (2019). Strobo-strain : stroboscopic neutron and X-ray strain measurements in dynamically loaded engineering components. (Doctoral Dissertation). University of Sheffield. Retrieved from http://etheses.whiterose.ac.uk/25545/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794211
Chicago Manual of Style (16th Edition):
Reid, Anthony. “Strobo-strain : stroboscopic neutron and X-ray strain measurements in dynamically loaded engineering components.” 2019. Doctoral Dissertation, University of Sheffield. Accessed February 28, 2021.
http://etheses.whiterose.ac.uk/25545/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794211.
MLA Handbook (7th Edition):
Reid, Anthony. “Strobo-strain : stroboscopic neutron and X-ray strain measurements in dynamically loaded engineering components.” 2019. Web. 28 Feb 2021.
Vancouver:
Reid A. Strobo-strain : stroboscopic neutron and X-ray strain measurements in dynamically loaded engineering components. [Internet] [Doctoral dissertation]. University of Sheffield; 2019. [cited 2021 Feb 28].
Available from: http://etheses.whiterose.ac.uk/25545/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794211.
Council of Science Editors:
Reid A. Strobo-strain : stroboscopic neutron and X-ray strain measurements in dynamically loaded engineering components. [Doctoral Dissertation]. University of Sheffield; 2019. Available from: http://etheses.whiterose.ac.uk/25545/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.794211
University of Sheffield
26.
Gondwe, Christobel Tamala.
A novel framework to model the short and medium term mechanical response of the medial gastrocnemius.
Degree: PhD, 2019, University of Sheffield
URL: http://etheses.whiterose.ac.uk/25688/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798075
► Musculoskeletal disorders (MSDs) are the second largest cause of disability worldwide and cost the UK National Health Service (NHS) over £4.7 billion yearly. One holistic…
(more)
▼ Musculoskeletal disorders (MSDs) are the second largest cause of disability worldwide and cost the UK National Health Service (NHS) over £4.7 billion yearly. One holistic approach to alleviate this burden is to create in silico models that provide insight into MSDs which will improve diagnostic and therapeutic procedures. This thesis presents a modelling framework that analyses the mechanical behaviour of anatomical skeletal muscles. The anatomical geometry and fibre paths of the medial gastrocnemius muscle were acquired from the Living Human Data Library (LHDL). The medial gastrocnemius model was further sophisticated by incorporating morphological representations of the aponeurosis and myotendon transition region. Having carried out a finite element analysis on the medial gastrocnemius, it was found that the morphology and size of the transition region significantly affected the mechanical response of the muscle. Three illustrative simulations were subsequently carried out on the model, to better understand the muscle's mechanical response in differing mechanical environments: (1) the effects of high extensions on the muscle's mechanical response, (2) lengthening of the aponeurosis - a phenomenon often observed following aponeurosis regression - and (3) the stress-strain regime of the muscle when the tendon experiences a laceration and heals over 21 days. These models show the regions that experienced the highest strains were the muscle-tendon transition regions. As MSDs tend to be of a degenerative nature and progress over time, the temporal changes of the mechanical response of skeletal muscle tissue is of great interest. In the penultimate chapter, the medial gastrocnemius was assessed across various remodelling regimes. It was found that the muscle returned to homeostasis only when both the muscle and tendon remodelled - albeit, at different remodelling rates. Whilst this observation seems intuitive, most other growth and remodelling models of skeletal muscles have only remodelled either the muscle or tendon constituent. The model developed in this thesis therefore has the potential to inform multi-scale musculo-skeletal muscle models thus providing a significant contribution to understanding MSDs.
Subjects/Keywords: 621
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APA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gondwe, C. T. (2019). A novel framework to model the short and medium term mechanical response of the medial gastrocnemius. (Doctoral Dissertation). University of Sheffield. Retrieved from http://etheses.whiterose.ac.uk/25688/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798075
Chicago Manual of Style (16th Edition):
Gondwe, Christobel Tamala. “A novel framework to model the short and medium term mechanical response of the medial gastrocnemius.” 2019. Doctoral Dissertation, University of Sheffield. Accessed February 28, 2021.
http://etheses.whiterose.ac.uk/25688/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798075.
MLA Handbook (7th Edition):
Gondwe, Christobel Tamala. “A novel framework to model the short and medium term mechanical response of the medial gastrocnemius.” 2019. Web. 28 Feb 2021.
Vancouver:
Gondwe CT. A novel framework to model the short and medium term mechanical response of the medial gastrocnemius. [Internet] [Doctoral dissertation]. University of Sheffield; 2019. [cited 2021 Feb 28].
Available from: http://etheses.whiterose.ac.uk/25688/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798075.
Council of Science Editors:
Gondwe CT. A novel framework to model the short and medium term mechanical response of the medial gastrocnemius. [Doctoral Dissertation]. University of Sheffield; 2019. Available from: http://etheses.whiterose.ac.uk/25688/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.798075
University of Sheffield
27.
bin Abdul Rasid, Ahmad Fuad.
Quantitative investigation on the transient evaporation of fuel droplet using high speed imaging and digital image processing.
Degree: PhD, 2019, University of Sheffield
URL: http://etheses.whiterose.ac.uk/25393/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792061
► Evaporation, flame formation and liquid-phase dynamics of isolated fuel droplet shares similar characteristics with the droplets within fuel spray. Hence, isolated droplet studies which involves…
(more)
▼ Evaporation, flame formation and liquid-phase dynamics of isolated fuel droplet shares similar characteristics with the droplets within fuel spray. Hence, isolated droplet studies which involves simple mass and energy transport are relevance to the complex spray environment in combustion. Motivations in the present work evolves around the evaluation of disruptive, transient liquid and gas phase of evaporating liquid fuel between analytical and experimental method. These disruptive and transient effects were analysed by several droplet conditions and arrangements including the experimentation on neat fuel with large difference in volatility and sooting propensities, stable and unstable emulsion droplets, soot contaminated diesel and multi-droplet combustion. Fuel droplets experimented in present work were suspended on 100 μm silicon carbide fibre and ignited in normal gravity, atmospheric pressure and ambient air. Backlighting was utilised to image the droplet and the flame was imaged directly by high speed cameras. The discrepancies between experimental and analytical works were divided into two conditions. Prolonged droplet heating affected the prediction accuracy of burning rate whilst prolonged fuel vapour accumulation affected the prediction accuracy of flame stand-off ratio. Higher amount liquid mass was ejected from water emulsion compared to ethanol emulsion droplet resulting 100% higher burning rate in each additive loading. It was found that microexplosion only occurs once all three conditions are present; the droplet temperature reaches the superheat limit of its lower boiling point component, a complete phase separation of emulsion components and the location of dispersed phase near the centre of the droplet. Compared to the unchanged reduction in burning rate of surface-contaminated droplet, the burning rate of volume-contaminated droplet was further reduced when the particle loading was higher. The difference was determined to be factored by the agglomeration rate of particles. Surface-contaminated droplet had a complete particle agglomeration upon ignition whilst volume-contaminated droplet had gradual agglomeration of particles, with faster particle agglomeration in higher loadings. In both contamination conditions, the droplet heating effect was longer due to high particle absorbance and the accumulated fuel vapour is found to be reduced due to the supressed evaporation rate. During the combustion of closely packed fuel droplets, the critical distance is found to be longer for lower volatility fuel factored by its tendency to have fuel vapour accumulation effect which enlarges the flame size when there is a starvation of oxygen. Transient droplet heating during multi-droplet combustion was found to be affected by the availability of oxidiser and heat transfer from the flame of nearby droplets. On the other hand, the combustion stability depended on the inter-droplet distance between neighbouring droplet. Overall, it is found that during transient droplet heating, longer duration taken for a fuel…
Subjects/Keywords: 621
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APA (6th Edition):
bin Abdul Rasid, A. F. (2019). Quantitative investigation on the transient evaporation of fuel droplet using high speed imaging and digital image processing. (Doctoral Dissertation). University of Sheffield. Retrieved from http://etheses.whiterose.ac.uk/25393/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792061
Chicago Manual of Style (16th Edition):
bin Abdul Rasid, Ahmad Fuad. “Quantitative investigation on the transient evaporation of fuel droplet using high speed imaging and digital image processing.” 2019. Doctoral Dissertation, University of Sheffield. Accessed February 28, 2021.
http://etheses.whiterose.ac.uk/25393/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792061.
MLA Handbook (7th Edition):
bin Abdul Rasid, Ahmad Fuad. “Quantitative investigation on the transient evaporation of fuel droplet using high speed imaging and digital image processing.” 2019. Web. 28 Feb 2021.
Vancouver:
bin Abdul Rasid AF. Quantitative investigation on the transient evaporation of fuel droplet using high speed imaging and digital image processing. [Internet] [Doctoral dissertation]. University of Sheffield; 2019. [cited 2021 Feb 28].
Available from: http://etheses.whiterose.ac.uk/25393/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792061.
Council of Science Editors:
bin Abdul Rasid AF. Quantitative investigation on the transient evaporation of fuel droplet using high speed imaging and digital image processing. [Doctoral Dissertation]. University of Sheffield; 2019. Available from: http://etheses.whiterose.ac.uk/25393/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792061
University College London (University of London)
28.
Klaric, G.
Oral delivery of protein antigens to Atlantic salmon.
Degree: PhD, 2015, University College London (University of London)
URL: https://discovery.ucl.ac.uk/id/eprint/1473438/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790036
► During recent years, the use of functional ingredients in aquaculture industry has increased dramatically. Accordingly, there are a broad range of functional feeds available for…
(more)
▼ During recent years, the use of functional ingredients in aquaculture industry has increased dramatically. Accordingly, there are a broad range of functional feeds available for use in fish farming. As a result, there is ongoing research which focuses on developing oral delivery systems for fish. Variety of products can be incorporated into alginate matrices to avoid damage from the low pH and proteolytic enzymes encountered in the digestive tract of fish. However, there has been very little research reported on the effectiveness of those oral delivery systems with respect to performance within fish feed and fish. Furthermore, the reported particle sizes used within alginate delivery systems require further reduction to be suitable for effective association within feed pellets. Additionally, it is essential that active compounds are released at the right place in fish. In this study, encapsulation technology capable of providing an economical and high throughput method for producing fine alginate beads (≤10 µm) was assessed. Post-coating examination with the micro-tomography (micro-CT) equipment confirmed the presence of alginate particles inside the pellet in large numbers. According to our observations in an enzyme assay, the active compounds are released at the most favourable site in Atlantic salmon which is the distal intestine. There is also evidence to suggest that alginateencapsulated protein antigens when released in the intestine are capable of crossing the intestinal epithelial layer. Similarly, in the assessment of intraperitoneal priming/oral boosting strategy against infectious pancreatic necrosis (IPN), alginate-encapsulated IPN antigens boosted immune response in salmon. This could be seen in significant up-regulation of relevant genes measured by quantitative PCR and specific antibody response detected in an ELISA assay. The results of these investigative studies significantly improve understanding of the issues regarding incorporation of delivery systems into fish feed in the current manufacturing process leading to a novel approach for functionalizing fish feed.
Subjects/Keywords: 621
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APA (6th Edition):
Klaric, G. (2015). Oral delivery of protein antigens to Atlantic salmon. (Doctoral Dissertation). University College London (University of London). Retrieved from https://discovery.ucl.ac.uk/id/eprint/1473438/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790036
Chicago Manual of Style (16th Edition):
Klaric, G. “Oral delivery of protein antigens to Atlantic salmon.” 2015. Doctoral Dissertation, University College London (University of London). Accessed February 28, 2021.
https://discovery.ucl.ac.uk/id/eprint/1473438/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790036.
MLA Handbook (7th Edition):
Klaric, G. “Oral delivery of protein antigens to Atlantic salmon.” 2015. Web. 28 Feb 2021.
Vancouver:
Klaric G. Oral delivery of protein antigens to Atlantic salmon. [Internet] [Doctoral dissertation]. University College London (University of London); 2015. [cited 2021 Feb 28].
Available from: https://discovery.ucl.ac.uk/id/eprint/1473438/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790036.
Council of Science Editors:
Klaric G. Oral delivery of protein antigens to Atlantic salmon. [Doctoral Dissertation]. University College London (University of London); 2015. Available from: https://discovery.ucl.ac.uk/id/eprint/1473438/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790036
29.
Crabbe-Mann, Maryam Rachel.
Electrospinning of cellulose based wound dressing.
Degree: PhD, 2019, University College London (University of London)
URL: https://discovery.ucl.ac.uk/id/eprint/10082026/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791026
► Cellulose is the most abundant polymer found on the face of the earth with plants and bacteria producing over 1011 103 kg every year. Not…
(more)
▼ Cellulose is the most abundant polymer found on the face of the earth with plants and bacteria producing over 1011 103 kg every year. Not only is this material widely available, it is renewable, sustainable and cheap, making it an attractive selection across many industries. The return to naturally derived materials in the medical field is driven by two motivations; the increased cases of resistance in bacteria to conventional drugs, and more relatedly, the need to reduce dependence on non-renewable resources when producing medical materials. Cellulose and its derivatives, are already used widely in the biomedical field in varying applications; drug delivery to eye drops. When manufacturing biomaterials from cellulose, the techniques used usually contain many steps and can be quite costly, this is where electrohydrodynamic (EHD) processing comes in. EHD is a one step process where under the influence of an electric field, a polymer solution or melt can be processed into micro- and nano-scale structures as a function of the polymer solution/melt properties such as concentration, molecular weight, solvent and processing properties such as voltage, flow rate and collection distance. In the first instance, this work investigated the electrospinning of three cellulose derivatives, ethyl cellulose, cellulose acetate and carboxymethyl cellulose; changing parameters aforementioned and observing the effect on the microstructures produced. Bacterial cellulose produced by the Gluconacetobacter xylinus bacteria, is chemically identical to plant cellulose, but is purer, not needing any separation or purifying post production. The most attractive feature of this bacterial cellulose (BC) is its liquid absorption capacity, it can hold many times it weight in liquid and proves to be useful in managing the exudate of diabetic ulcers. This BC was blended with different polymers and anti-diabetic drugs, after which in vitro behaviour was assessed.
Subjects/Keywords: 621
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APA ·
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MLA ·
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Export
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APA (6th Edition):
Crabbe-Mann, M. R. (2019). Electrospinning of cellulose based wound dressing. (Doctoral Dissertation). University College London (University of London). Retrieved from https://discovery.ucl.ac.uk/id/eprint/10082026/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791026
Chicago Manual of Style (16th Edition):
Crabbe-Mann, Maryam Rachel. “Electrospinning of cellulose based wound dressing.” 2019. Doctoral Dissertation, University College London (University of London). Accessed February 28, 2021.
https://discovery.ucl.ac.uk/id/eprint/10082026/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791026.
MLA Handbook (7th Edition):
Crabbe-Mann, Maryam Rachel. “Electrospinning of cellulose based wound dressing.” 2019. Web. 28 Feb 2021.
Vancouver:
Crabbe-Mann MR. Electrospinning of cellulose based wound dressing. [Internet] [Doctoral dissertation]. University College London (University of London); 2019. [cited 2021 Feb 28].
Available from: https://discovery.ucl.ac.uk/id/eprint/10082026/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791026.
Council of Science Editors:
Crabbe-Mann MR. Electrospinning of cellulose based wound dressing. [Doctoral Dissertation]. University College London (University of London); 2019. Available from: https://discovery.ucl.ac.uk/id/eprint/10082026/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791026
University College London (University of London)
30.
Jiang, Xinyue.
Microfluidic devices with coarse capillaries to fabricate bioengineering products : bubbles, scaffolds and nanoparticles.
Degree: PhD, 2019, University College London (University of London)
URL: https://discovery.ucl.ac.uk/id/eprint/10080574/
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790966
► Microbubbles fabricated by microfluidic techniques have garnered remarkable interest in many diverse fields for various applications such as ultrasound contrast agents, tissue engineering scaffolds and…
(more)
▼ Microbubbles fabricated by microfluidic techniques have garnered remarkable interest in many diverse fields for various applications such as ultrasound contrast agents, tissue engineering scaffolds and nanoparticles in drug delivery. Microfluidic T-junctions were used for this purpose owing to their ease of operation and fine control over the operation parameters. This thesis consists of two main sections: (1) microfluidic-assisted production of scaffolds and nanoparticles; and (2) multiple T-junctions for the reduction of microbubble size in size-restricted applications. In section one, a single T-junction was used to produce microdroplets with pre-designed sizes for tissue-engineering applications. It was found that the scaffold structure and porosity can be tuned by altering the microdroplet size. Nanoparticles were formed by nanoprecipitation inside a microfluidic channel, inducing self-assembled polymeric particle patterns upon solvent evaporation. The processing parameters and materials properties were investigated for their effects on the sizes of microbubbles and nanoparticles. In section two, the method of using multiple T-junctions to reduce microbubble size was explored. In some applications for microbubbles, size is a design constraint with smaller microbubbles being desired To overcome the limitation, the idea of combining multiple T-junctions with coarse capillaries for size reduction has been investigated. Firstly, a double T-junction was assembled, and the effect of an additional T-junction on microbubble formation, stability and productivity has been thoroughly studied. A microbubble scaling prediction equation was proposed based on experimental data and the Garstecki equation. A triple T-junction was assembled to validate the proposed equation and to further reduce the microbubble size. Capillary number was introduced to investigate the microbubble fission regime. The critical capillary number was found experimentally to indicate the breaking and non-breaking microbubbles. Thus, the microfluidic-assisted setup described in this work offers a feasible processing method for fabricating microbubbles, scaffolds and nanoparticles with good uniformity and low polydispersity index.
Subjects/Keywords: 621
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jiang, X. (2019). Microfluidic devices with coarse capillaries to fabricate bioengineering products : bubbles, scaffolds and nanoparticles. (Doctoral Dissertation). University College London (University of London). Retrieved from https://discovery.ucl.ac.uk/id/eprint/10080574/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790966
Chicago Manual of Style (16th Edition):
Jiang, Xinyue. “Microfluidic devices with coarse capillaries to fabricate bioengineering products : bubbles, scaffolds and nanoparticles.” 2019. Doctoral Dissertation, University College London (University of London). Accessed February 28, 2021.
https://discovery.ucl.ac.uk/id/eprint/10080574/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790966.
MLA Handbook (7th Edition):
Jiang, Xinyue. “Microfluidic devices with coarse capillaries to fabricate bioengineering products : bubbles, scaffolds and nanoparticles.” 2019. Web. 28 Feb 2021.
Vancouver:
Jiang X. Microfluidic devices with coarse capillaries to fabricate bioengineering products : bubbles, scaffolds and nanoparticles. [Internet] [Doctoral dissertation]. University College London (University of London); 2019. [cited 2021 Feb 28].
Available from: https://discovery.ucl.ac.uk/id/eprint/10080574/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790966.
Council of Science Editors:
Jiang X. Microfluidic devices with coarse capillaries to fabricate bioengineering products : bubbles, scaffolds and nanoparticles. [Doctoral Dissertation]. University College London (University of London); 2019. Available from: https://discovery.ucl.ac.uk/id/eprint/10080574/ ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.790966
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Open Access Theses and Dissertations
