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1.
Shi, Yiwen.
Fault Criticality Analysis and Test Optimization Methods for
Enhanced Detection of Critical Faults and Defects in Digital
Integrated Circuits.
Degree: PhD, Electrical Science and Computer
Engineering, 2011, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:11311/
► Defective part levels of zero are almost impossible to achieve in an era of complex defects and process variations. It is important to ensure that…
(more)
▼ Defective part levels of zero are almost impossible to
achieve in an era of complex defects and process variations. It is
important to ensure that any defects missed during test impact the
end user as little as possible. In particular, when testing
resources are severely limited, special attention should be paid to
critical faults so that important or frequent field failures
arising from test escapes can be minimized. Reducing the
criticality of test escapes requires 1) a means of estimating the
criticality of different potential faults and 2) a method for
optimizing test sets based upon the obtained
criticality estimates.
In this dissertation, we first present a method to efficiently
estimate fault
criticality under realistic usage conditions using a
translation between combinational and sequential fault analysis.
Using the resulting criticalities, we then propose a test set
quality model to evaluate the ability of test patterns to detect
the most critical defects. We develop two algorithms that use this
test quality model to optimize test sets. Unlike previous
approaches that considered
criticality during test for the purpose
of increasing yields, we focus on effectively utilizing scarce
testing resources to reduce the
criticality of test escapes without
purposefully allowing defects to pass. We will show that both
proposed algorithms can dramatically reduce the
criticality of test
escapes. Finally, motivated by the idea of focusing limited testing
resources on faults that are likely to cause failures in field, we
next propose the insertion of hardware monitors into a design to
dynamically estimate the
criticality of potential faults.
Specifically, we propose a new type of hardware monitor for the
probabilistic determination of how many times each fault was likely
to have been covered during program execution. The estimated
detection counts have many potential uses�including the rating of
functional test sequences and the identification of which faults
are most critical for the applications a user is actually running.
Furthermore, in a multi-core environment, the resulting
criticality
estimates could be used to generate field-based test sets that
concentrate on those areas of the design that are most critical to
user applications.
Advisors/Committee Members: Dworak, Jennifer (Director), Bahar, Ruth (Reader), Reda, Sherief (Reader).
Subjects/Keywords: fault criticality
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
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APA (6th Edition):
Shi, Y. (2011). Fault Criticality Analysis and Test Optimization Methods for
Enhanced Detection of Critical Faults and Defects in Digital
Integrated Circuits. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11311/
Chicago Manual of Style (16th Edition):
Shi, Yiwen. “Fault Criticality Analysis and Test Optimization Methods for
Enhanced Detection of Critical Faults and Defects in Digital
Integrated Circuits.” 2011. Doctoral Dissertation, Brown University. Accessed February 27, 2021.
https://repository.library.brown.edu/studio/item/bdr:11311/.
MLA Handbook (7th Edition):
Shi, Yiwen. “Fault Criticality Analysis and Test Optimization Methods for
Enhanced Detection of Critical Faults and Defects in Digital
Integrated Circuits.” 2011. Web. 27 Feb 2021.
Vancouver:
Shi Y. Fault Criticality Analysis and Test Optimization Methods for
Enhanced Detection of Critical Faults and Defects in Digital
Integrated Circuits. [Internet] [Doctoral dissertation]. Brown University; 2011. [cited 2021 Feb 27].
Available from: https://repository.library.brown.edu/studio/item/bdr:11311/.
Council of Science Editors:
Shi Y. Fault Criticality Analysis and Test Optimization Methods for
Enhanced Detection of Critical Faults and Defects in Digital
Integrated Circuits. [Doctoral Dissertation]. Brown University; 2011. Available from: https://repository.library.brown.edu/studio/item/bdr:11311/

Delft University of Technology
2.
Narayana, S. (author).
Orchestrating Mixed-Criticality Melody: Reconciling Energy with Safety for Mixed-Criticality Embedded Real-Time Systems.
Degree: 2015, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:015312bf-905c-439a-a511-8b6f721888a5
► Embedded systems are getting into various domains of our daily life as well as in many of the highly sophisticated large systems, such as air…
(more)
▼ Embedded systems are getting into various domains of our daily life as well as in many of the highly sophisticated large systems, such as air planes, military tanks, rockets, satellites. These large systems consist of many modules which are executing umpteen number of tasks semi-independently. However, not all tasks have the same levels of priority and/or criticality. One way is to design individual systems with dedicated processors to avoid the dependency as proposed by the industry. However, mixed-criticality notion helps to enhance system performance, and reduce system cost, size, and weight. The idea is to integrate functionalities of different safety criticality levels into a common computing platform. Further, the energy consumption of these systems should also be taken into account. While there are many algorithms under the broad umbrella of scheduling - preemptive, non-preemptive, etc., – solutions that jointly minimizes both static and dynamic energy consumption in mixed-criticality systems on multi-cores under partitioned scheduling are, hitherto, not addressed in depth. To reconcile the conflicting requirements of safety and energy: (i) we formulate a general energy minimization problem; (ii) we provide an analytical optimal solution on unicore systems and a corresponding low-complexity heuristic and (iii) we provide energy-aware mapping techniques based on our unicore solutions on multi-cores. Effectiveness in energy reduction is demonstrated for our solutions through extensive simulations with synthetic task sets.
MSc. Embedded Systems
Embedded Software
Electrical Engineering, Mathematics and Computer Science
Advisors/Committee Members: Venkatesha Prasad, R. (mentor), Thiele, L. (mentor).
Subjects/Keywords: mixed-criticality; criticality; energy minimization; multi-core
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Narayana, S. (. (2015). Orchestrating Mixed-Criticality Melody: Reconciling Energy with Safety for Mixed-Criticality Embedded Real-Time Systems. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:015312bf-905c-439a-a511-8b6f721888a5
Chicago Manual of Style (16th Edition):
Narayana, S (author). “Orchestrating Mixed-Criticality Melody: Reconciling Energy with Safety for Mixed-Criticality Embedded Real-Time Systems.” 2015. Masters Thesis, Delft University of Technology. Accessed February 27, 2021.
http://resolver.tudelft.nl/uuid:015312bf-905c-439a-a511-8b6f721888a5.
MLA Handbook (7th Edition):
Narayana, S (author). “Orchestrating Mixed-Criticality Melody: Reconciling Energy with Safety for Mixed-Criticality Embedded Real-Time Systems.” 2015. Web. 27 Feb 2021.
Vancouver:
Narayana S(. Orchestrating Mixed-Criticality Melody: Reconciling Energy with Safety for Mixed-Criticality Embedded Real-Time Systems. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Feb 27].
Available from: http://resolver.tudelft.nl/uuid:015312bf-905c-439a-a511-8b6f721888a5.
Council of Science Editors:
Narayana S(. Orchestrating Mixed-Criticality Melody: Reconciling Energy with Safety for Mixed-Criticality Embedded Real-Time Systems. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:015312bf-905c-439a-a511-8b6f721888a5

University of Alberta
3.
Ogilvie, Gregory S.
Gaging The Transformative Potential of Second Language
Education: Language Educators' Understanding of Interculturality
and Criticality.
Degree: PhD, Department of Secondary Education, 2016, University of Alberta
URL: https://era.library.ualberta.ca/files/csx61dm28m
► Second language education is well suited to promote transformative outcomes due to its unique character (the importance of both declarative and procedural knowledge), the close…
(more)
▼ Second language education is well suited to promote
transformative outcomes due to its unique character (the importance
of both declarative and procedural knowledge), the close connection
between language and culture, and the entrenched humanistic
tradition within the field (Musumeci, 1997; Guilherme, 2002).
Nonetheless, second language pedagogy is commonly portrayed as
having an exclusive linguistic focus, as evidenced by the professed
professional knowledge base of second language educators (e.g.,
Freeman & Johnson, 1998; Johnston & Goettsch, 2000;
Andrews, 2003; Liddicoat, 2006; Mullock, 2006). This study sought
to explore the transformative potential of second language
education by investigating how professional second language
educators understand ‘criticality’ and ‘interculturality’ – two
complex, heterogeneously defined concepts that have received
increased attention in the field and have a significant impact on
how pedagogy is enacted. As the primary unit of inquiry was
understanding, an interpretive approach was adopted grounded in
post-formal thinking, Gadamerian hermeneutics, and critical
pedagogy. Data for the study was collected from ten highly
educated, dedicated second language instructors with experience
teaching in higher education institutions. Data was collected in
the form of extensive interviews and the analysis of resources
deemed important in guiding instruction. The results of the
hermeneutic investigation demonstrated that the educators defined
the function of second language education and the central concepts
of the study (criticality and interculturality) in diverse ways.
The varied conceptualizations illuminated different aspects of
criticality and interculturality and their influence on pedagogy
from a practitioner perspective. Moreover, they revealed that all
the educators conceptualized second language education as a
transformative act, but to differing degrees and with different
foci. Among the central factors influencing the transformative
potential of second language pedagogy were the domains in which
criticality was applied. Although all of the educators applied
criticality to information introduced in the classroom (in relation
to the source, validity, etc. of information), only some of the
educators applied criticality to the domains of the subject,
content introduced, pedagogical practices and epistemology, thus
greatly influencing the transformative potential of instruction.
The results of the study also revealed the presence of discourses
that had an inhibitory effect on second language education as a
transformative endeavour. These included the discourse of political
correctness, the discourse of narrow instrumentality, and the
discourse of decisive deference. The discourses demonstrate how the
trends towards standardization and de-professionalization rampant
within the field of education have had an adverse impact on how
second language educators understand their role in the pedagogical
process and enact pedagogy.
Subjects/Keywords: interculturality; transformative education; criticality
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ogilvie, G. S. (2016). Gaging The Transformative Potential of Second Language
Education: Language Educators' Understanding of Interculturality
and Criticality. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/csx61dm28m
Chicago Manual of Style (16th Edition):
Ogilvie, Gregory S. “Gaging The Transformative Potential of Second Language
Education: Language Educators' Understanding of Interculturality
and Criticality.” 2016. Doctoral Dissertation, University of Alberta. Accessed February 27, 2021.
https://era.library.ualberta.ca/files/csx61dm28m.
MLA Handbook (7th Edition):
Ogilvie, Gregory S. “Gaging The Transformative Potential of Second Language
Education: Language Educators' Understanding of Interculturality
and Criticality.” 2016. Web. 27 Feb 2021.
Vancouver:
Ogilvie GS. Gaging The Transformative Potential of Second Language
Education: Language Educators' Understanding of Interculturality
and Criticality. [Internet] [Doctoral dissertation]. University of Alberta; 2016. [cited 2021 Feb 27].
Available from: https://era.library.ualberta.ca/files/csx61dm28m.
Council of Science Editors:
Ogilvie GS. Gaging The Transformative Potential of Second Language
Education: Language Educators' Understanding of Interculturality
and Criticality. [Doctoral Dissertation]. University of Alberta; 2016. Available from: https://era.library.ualberta.ca/files/csx61dm28m

McMaster University
4.
Lunts, Peter.
Low Energy Properties of the Antiferromagnetic Quantum Critical Metal in Two Dimensions.
Degree: PhD, 2017, McMaster University
URL: http://hdl.handle.net/11375/22075
► In this thesis, we study the low-energy effective theory for the antiferromagnetic quantum critical metal in two dimensions. The theory has been the subject of…
(more)
▼ In this thesis, we study the low-energy effective theory for the antiferromagnetic quantum
critical metal in two dimensions. The theory has been the subject of intense study for more than
twenty years, due to the novel physics of non-Fermi liquid metals and its potential relevance to
high-temperature superconductors and heavy-fermion compounds.
In the first part of the thesis, we present the perturbative study of the theory in 3 minus epsilon space dimensions by extending the earlier one-loop analysis to higher-loop orders. We show that the expansion is not organized by the standard loop expansion, and a two-loop graph becomes as important as one-loop graphs even in the small epsilon limit due to an infrared singularity caused by an emergent quasilocality. This qualitatively changes the nature of the infrared fixed point, and the epsilon expansion is controlled only after the two-loop effect is taken into account. Furthermore, we show that a ratio between velocities emerges as a small parameter, which suppresses a large class of diagrams. We show that the critical exponents do not receive quantum corrections beyond the linear order in epsilon in the limit that the ratio of velocities vanishes.
In the second part of the thesis, we present a nonperturbative solution to the theory in two
dimensions based on an ansatz that is inspired by the perturbative analysis. Being a strongly
coupled theory, it can still be solved reliably in the low-energy limit as quantum fluctuations are
organized by the ratio of velocities that dynamically flows to zero in the low-energy limit. We
predict the exact critical exponents that govern the universal scaling of physical observables at
low temperatures.
Thesis
Doctor of Philosophy (PhD)
Advisors/Committee Members: Lee, Sung-Sik, Physics and Astronomy.
Subjects/Keywords: Quantum Criticality; Non-Fermi liquids
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lunts, P. (2017). Low Energy Properties of the Antiferromagnetic Quantum Critical Metal in Two Dimensions. (Doctoral Dissertation). McMaster University. Retrieved from http://hdl.handle.net/11375/22075
Chicago Manual of Style (16th Edition):
Lunts, Peter. “Low Energy Properties of the Antiferromagnetic Quantum Critical Metal in Two Dimensions.” 2017. Doctoral Dissertation, McMaster University. Accessed February 27, 2021.
http://hdl.handle.net/11375/22075.
MLA Handbook (7th Edition):
Lunts, Peter. “Low Energy Properties of the Antiferromagnetic Quantum Critical Metal in Two Dimensions.” 2017. Web. 27 Feb 2021.
Vancouver:
Lunts P. Low Energy Properties of the Antiferromagnetic Quantum Critical Metal in Two Dimensions. [Internet] [Doctoral dissertation]. McMaster University; 2017. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/11375/22075.
Council of Science Editors:
Lunts P. Low Energy Properties of the Antiferromagnetic Quantum Critical Metal in Two Dimensions. [Doctoral Dissertation]. McMaster University; 2017. Available from: http://hdl.handle.net/11375/22075

Kansas State University
5.
Stein, Jesse.
Caffeine:
Friend or foe in the modern combat environment?.
Degree: PhD, Department of
Kinesiology, 2020, Kansas State University
URL: http://hdl.handle.net/2097/40791
► This dissertation identified critical tasks (CTs) executed in modern combat environments and determined caffeine’s effect on CT performance. Job task analyses have identified CTs performed…
(more)
▼ This dissertation identified critical tasks (CTs)
executed in modern combat environments and determined caffeine’s
effect on CT performance. Job task analyses have identified CTs
performed by specific military occupations, but have yet to
identify CTs from combat environments. A job task analysis was
conducted in Study 1 to identify CTs performed in modern combat
environments.
Subject matter experts meeting international criteria
developed a job analysis questionnaire (JAQ). The JAQ contained 19
combat-relevant tasks that were evaluated for task frequency and
importance by 137 veterans from the Global War on Terror.
Eighty-nine percent of combat-relevant tasks were CTs that spanned
multiple domains of physical fitness and tactical proficiencies.
The most important CTs were: “sprint all-out in a single or
repeated-bout < 30-s,” “sprint, jump, or dive under combat
load,” and “aim, fire, and prepare a weapon in support of
operations.” Optimizing soldier performance during CTs is key to
mission-success and soldier survivability. Soldiers utilize
caffeine as a countermeasure during sustained operations; yet,
caffeine’s utility during these CTs remain unknown. In Study 2, we
determined the effects of acute caffeine supplementation on
exercise tolerance during repeated-sprint exercise. Ten physically
active men were randomized in a double-blind crossover study to
consume caffeine (5 mg/kg) or placebo before an intermittent
critical velocity test. Subjects performed 3 sets of
repeated-sprints (10 s running, 10 s rest) until exhaustion at
110%, 120%, and 130% of peak velocity (PV) achieved during a graded
exercise test. Caffeine supplementation prolonged exercise duration
at 110% PV (294-s vs. 392-s, p = 0.020), but not at 120% and 130%
PV. Study 2 found that caffeine was ergogenic at approximately
400-s – similar in duration to tactical combat engagements – and
gave precedence for the final investigation. Study 3 combined CTs
“sprint, jump, or dive under combat load” and “aim, fire, and
prepare a weapon in support of operations” to develop a tactical
combat movement simulation and determine caffeine’s effects on CT
performance. Thirty-nine healthy subjects were randomized in a
double-blind, crossover study to chew caffeine gum (4 mg/kg) or
placebo before a tactical combat movement simulation that included
a fire-and-move battle drill and a marksmanship with cognitive
workload assessment. Subjects wore a weight vest (~25-kg) during
the simulation to mimic a combat load. Sprint durations from the
fire-and-move simulation were used to model susceptibility to enemy
fire. Sprint duration and susceptibility to enemy fire increased by
9.3% and 7.8%, respectively during the tactical combat movement
simulation (p = 0.001). Cognitive performance also decreased during
the tactical combat movement simulation (p < 0.05). Caffeine had
no effect on sprint duration, susceptibility to enemy fire,
marksmanship or cognitive performance. Overall, caffeine may
provide benefit for some CTs when performed in isolation at select
running velocities,…
Advisors/Committee Members: Thomas J. BarstowKatie M. Heinrich.
Subjects/Keywords: ergogenic;
exercise tolerance; criticality; survivability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Stein, J. (2020). Caffeine:
Friend or foe in the modern combat environment?. (Doctoral Dissertation). Kansas State University. Retrieved from http://hdl.handle.net/2097/40791
Chicago Manual of Style (16th Edition):
Stein, Jesse. “Caffeine:
Friend or foe in the modern combat environment?.” 2020. Doctoral Dissertation, Kansas State University. Accessed February 27, 2021.
http://hdl.handle.net/2097/40791.
MLA Handbook (7th Edition):
Stein, Jesse. “Caffeine:
Friend or foe in the modern combat environment?.” 2020. Web. 27 Feb 2021.
Vancouver:
Stein J. Caffeine:
Friend or foe in the modern combat environment?. [Internet] [Doctoral dissertation]. Kansas State University; 2020. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2097/40791.
Council of Science Editors:
Stein J. Caffeine:
Friend or foe in the modern combat environment?. [Doctoral Dissertation]. Kansas State University; 2020. Available from: http://hdl.handle.net/2097/40791

Delft University of Technology
6.
Farias, Pedro Gil (author).
Participation in Speculative Design.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:6d09b123-5437-4ab9-bfb4-ca5edc4c7d33
► There is a more than ever need to be critical of the present and imagine future possibilities. Several critical approaches to design place its efforts…
(more)
▼ There is a more than ever need to be critical of the present and imagine future possibilities. Several critical approaches to design place its efforts in creating artefacts for critical reflection. As part of the spectrum, speculative design is an approach that, through speculation into the possible, aims to challenge the status quo, explore the implications of emerging issues, and frame debate around matters of concern. While the goal of speculative design is in engaging publics in debate and exploring alternatives to the dominant narrative, the practise has been facing several critiques. More specifically, speculation as remained exclusive to the designer as an author and most of the work is disseminated in gallery spaces, limiting the reach and depth of the debate generated. New projects and practitioners have emerged that push speculative design work into new contexts and within a participatory mindset. This thesis is placed at this intersection between participation and speculative design. While this intersection seems promising and valuable, there might be some challenges in the transition from authorial practise to a participatory process. Additionally, bringing speculative design in new contexts might bring several risks, specially when practised within the domains it aims to critique. The main research question addressed by this thesis is the following: When we open up the speculative design process, is the practise able to retain the critical aspects related to it? Eight semi-structured interviews with leading practitioners working on this space were done. From the interviews, three main challenges were identified: “Stuck in a Singular View” refers to the challenge of engaging a plurality of voices and on maintaining a nuanced perspective when critically discussing the future; “Stuck in the Context” is related with the difficulty in engaging in self-reflexive behaviour when working with speculative design inside contexts that might be reluctant to critique; “Stuck in the Now” refers to the difficulty in working in the future and how short-sightness might create an obstacle to speculative thinking. Additionally, several issues were mapped from the interviews and brought in a provisional framework for participation in speculative design. This framework consists of four levels that represent different aspects of the process: Context of Operation, Participants, Moments of Engagement, and Outcomes. Finally, the four levels and the three main challenges were used to problematise the design space and create a critical toolkit for integrating participation in speculative design. The goal of the toolkit is not to provide a solution on how to this, but it proposes several different questions and issues for reflection. The toolkit consists of 37 issues, spread throughout the four levels and in relation to the three challenges. The issues took shape as hexagonal playing cards, making it possible to connect the different cards and explore the design space.
Strategic Product Design
Advisors/Committee Members: Bendor, Roy (mentor), van Eekelen, Bregje (graduation committee), Freire, Vitor (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Speculative Design; Participation; Criticality; Futures
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Farias, P. G. (. (2020). Participation in Speculative Design. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:6d09b123-5437-4ab9-bfb4-ca5edc4c7d33
Chicago Manual of Style (16th Edition):
Farias, Pedro Gil (author). “Participation in Speculative Design.” 2020. Masters Thesis, Delft University of Technology. Accessed February 27, 2021.
http://resolver.tudelft.nl/uuid:6d09b123-5437-4ab9-bfb4-ca5edc4c7d33.
MLA Handbook (7th Edition):
Farias, Pedro Gil (author). “Participation in Speculative Design.” 2020. Web. 27 Feb 2021.
Vancouver:
Farias PG(. Participation in Speculative Design. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Feb 27].
Available from: http://resolver.tudelft.nl/uuid:6d09b123-5437-4ab9-bfb4-ca5edc4c7d33.
Council of Science Editors:
Farias PG(. Participation in Speculative Design. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:6d09b123-5437-4ab9-bfb4-ca5edc4c7d33

University of St. Andrews
7.
Karahasanovic, Una.
Fluctuation-driven phase reconstruction at itinerant ferromagnetic quantum critical points
.
Degree: 2012, University of St. Andrews
URL: http://hdl.handle.net/10023/3188
► The formation of new phases close to itinerant electron quantum critical points has been observed experimentally in many compounds. We present a unified analytical model…
(more)
▼ The formation of new phases close to itinerant electron quantum critical points has been observed experimentally in many compounds. We present a unified analytical model that explains the emergence of new types of phases around itinerant ferromagnetic quantum critical points. The central idea of our analysis is that certain deformations of the Fermi surface enhance the phase-space available for low-energy quantum fluctuations and so self-consistently lower the free energy. Using this quantum order-by-disorder mechanism, we find instabilities towards the formation of a spiral ferromagnet and spin-nematic phase close to an itinerant ferromagnetic quantum critical point.
Further, we employ the quantum order-by-disorder mechanism to describe the partially ordered phase of MnSi. Using the simplest model of a Stoner-like helimagnetic transition, we show that quantum fluctuations naturally lead to the formation of an unusual phase near to the putative quantum critical point that shares many of the observed features of the partially ordered phase in MnSi. In particular, we predict an angular dependence of neutron scattering that is in good agreement with neutron-scattering data.
Advisors/Committee Members: Green, Andrew George (advisor).
Subjects/Keywords: Condensed matter theory;
Quantum criticality
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Karahasanovic, U. (2012). Fluctuation-driven phase reconstruction at itinerant ferromagnetic quantum critical points
. (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/3188
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Karahasanovic, Una. “Fluctuation-driven phase reconstruction at itinerant ferromagnetic quantum critical points
.” 2012. Thesis, University of St. Andrews. Accessed February 27, 2021.
http://hdl.handle.net/10023/3188.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Karahasanovic, Una. “Fluctuation-driven phase reconstruction at itinerant ferromagnetic quantum critical points
.” 2012. Web. 27 Feb 2021.
Vancouver:
Karahasanovic U. Fluctuation-driven phase reconstruction at itinerant ferromagnetic quantum critical points
. [Internet] [Thesis]. University of St. Andrews; 2012. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10023/3188.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Karahasanovic U. Fluctuation-driven phase reconstruction at itinerant ferromagnetic quantum critical points
. [Thesis]. University of St. Andrews; 2012. Available from: http://hdl.handle.net/10023/3188
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University
8.
Ghose, Saugata.
Criticality-Aware Memory Systems.
Degree: PhD, Electrical Engineering, 2014, Cornell University
URL: http://hdl.handle.net/1813/38922
► Research on computer memory systems has been of increasing importance over the last decade, as they have become a significant bottleneck for application performance. While…
(more)
▼ Research on computer memory systems has been of increasing importance over the last decade, as they have become a significant bottleneck for application performance. While newer memory systems offer increased memory level parallelism, they cannot be used blindly due to contention for shared resources, making a beneficial and valid sequencing of memory requests requisite in order to exploit these improvements. Traditional approaches to improving this sequencing rely on highly sophisticated memory systems, where significant amounts of inference are often required to make these sophisticated decisions. Unfortunately, this design philosophy may no longer be sustainable. For example, as memory clock frequencies continue to scale while processor frequencies remain stagnant, sophisticated memory controllers are already being squeezed out, forcing computer architects to revert to simpler designs. We use this as an opportunity to symbiotically involve the processor cores in the decision-making process, simultaneously offloading the complexity from these memory decision makers while extracting richer information on each memory operation. This work studies the concept of load
criticality, where the processors themselves identify the loads which they believe to be most important. Using loads that block at the end of the processor pipeline as an indicator of
criticality, we annotate these load block predictions onto memory requests, for use by various components in memory. Our research finds that even using small, sim- ple predictors for load
criticality can offer comparable performance to complex state-of-the-art schedulers for both parallel applications and multiprogrammed workloads on a contemporary multicore system. This same predictor can be used to obtain significant performance improvements and energy savings when using hardware prefetchers. Ultimately, our
criticality-aware design approach achieves the performance of traditionally-complex memory systems, and does so with trivial overheads that are attractive for future commercial adoption.
Advisors/Committee Members: Martinez, Jose F. (chair), Manohar, Rajit (committee member), Albonesi, David H. (committee member).
Subjects/Keywords: load criticality; memory systems; computer architecture
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APA (6th Edition):
Ghose, S. (2014). Criticality-Aware Memory Systems. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/38922
Chicago Manual of Style (16th Edition):
Ghose, Saugata. “Criticality-Aware Memory Systems.” 2014. Doctoral Dissertation, Cornell University. Accessed February 27, 2021.
http://hdl.handle.net/1813/38922.
MLA Handbook (7th Edition):
Ghose, Saugata. “Criticality-Aware Memory Systems.” 2014. Web. 27 Feb 2021.
Vancouver:
Ghose S. Criticality-Aware Memory Systems. [Internet] [Doctoral dissertation]. Cornell University; 2014. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1813/38922.
Council of Science Editors:
Ghose S. Criticality-Aware Memory Systems. [Doctoral Dissertation]. Cornell University; 2014. Available from: http://hdl.handle.net/1813/38922

University of Edinburgh
9.
Abdul-Jabbar, Gino Jamal.
Emergence of magnetic order in the Rare Earth Intermetallic PrPtAl.
Degree: PhD, 2014, University of Edinburgh
URL: http://hdl.handle.net/1842/16232
► Magnetism of the rare earth intermetallics present some of the most important challenges for understanding correlated electron systems . In this thesis I distil this…
(more)
▼ Magnetism of the rare earth intermetallics present some of the most important challenges for understanding correlated electron systems . In this thesis I distil this immense challenge, to understanding the unusual magnetic properties of the rare earth intermetallic PrPtAl. At first glance, PrPtAl appears to be a typical local f moment system, where the electronic states of Pr3+ are composed of nine singlet states, split by the crystal electric field for the J = 4 spin-orbit state in low crystal symmetry (orthorhombic, Pnma). The absence of a magnetic ground state would naively lead us to expect PrPtAl to be a simple paramagnet, but the results from this thesis show that the material is more complex, ordering magnetically at 5.7 K in spite of its singlet ground state. This thesis investigates the emergence of magnetic order in PrPtAl. For this purpose, the properties of PrPtAl were measured using high quality single crystals grown using the Czochralski technique. These crystals were used to measure: bulk properties at the Centre for Science at Extreme Conditions (CSEC, University of Edinburgh) and to perform neutron and x-ray magnetic scattering experiments at central facilities within Europe (ISIS, ESRF) and North America (NCNR). The results of this thesis conclusively show that PrPtAl does not directly realise ferromagnetism, but initially orders into two modulated magnetic states between 5.7-5.2 K and 5.2-4.7 K. These states cannot be explained using a simple local moment picture, but appear to be driven by a complex interaction between local moments and conduction electrons, in a possible quantum order-by-disorder type mechanism.
Subjects/Keywords: 538; PrPtAl; induced magnetisation; quantum criticality
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Abdul-Jabbar, G. J. (2014). Emergence of magnetic order in the Rare Earth Intermetallic PrPtAl. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/16232
Chicago Manual of Style (16th Edition):
Abdul-Jabbar, Gino Jamal. “Emergence of magnetic order in the Rare Earth Intermetallic PrPtAl.” 2014. Doctoral Dissertation, University of Edinburgh. Accessed February 27, 2021.
http://hdl.handle.net/1842/16232.
MLA Handbook (7th Edition):
Abdul-Jabbar, Gino Jamal. “Emergence of magnetic order in the Rare Earth Intermetallic PrPtAl.” 2014. Web. 27 Feb 2021.
Vancouver:
Abdul-Jabbar GJ. Emergence of magnetic order in the Rare Earth Intermetallic PrPtAl. [Internet] [Doctoral dissertation]. University of Edinburgh; 2014. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1842/16232.
Council of Science Editors:
Abdul-Jabbar GJ. Emergence of magnetic order in the Rare Earth Intermetallic PrPtAl. [Doctoral Dissertation]. University of Edinburgh; 2014. Available from: http://hdl.handle.net/1842/16232
10.
DUNNE, GERARD JOHN.
Critical Thinking: A Neo-Aristotelian Perspective.
Degree: School of Education. Discipline of Education, 2019, Trinity College Dublin
URL: http://hdl.handle.net/2262/86046
► This dissertation seeks to cultivate a deeper conceptual understanding of critical thinking within the philosophy of education tradition. For until such time as theorists understand…
(more)
▼ This dissertation seeks to cultivate a deeper conceptual understanding of critical thinking within the philosophy of education tradition. For until such time as theorists understand what critical thinking is, including, how it works, educators will remain unclear as to what sort of educational accomplishments are required if one is to be rightly considered a critical thinker, and what means are likely to be successful in teaching people to think critically. Within this context, the dissertation argues for a neo-Aristotelian conceptualization of critical thought based on Harvey Siegel's (1988, p.23) 'reasons-assessment' criteria. Here I argue for the importance of critical thought embodying the prototypical phronimos, where habituated deliberative excellence accurately determines undefeated or decisive reasons for normatively-calibrated actions in the practical domain. This judgment (proairesis) is based on stress-testing the strength of normatively-calibrated reasons supporting a given course of action. Drawing on theorists such as, Dunne (1993), Paul & Elder (2002; 2005; 2007; 2009), and Siegel (1988; 1997; 2017), I proffer a new conceptual explication of
criticality, one which integrates phronetic deliberation and judgment with a deep sensitivity and responsiveness to the probative force of reasons-normativity in accurately determining undefeated reasons for 'knowing what one should do' in the practical domain (Anscombe, 1957, p13).
Advisors/Committee Members: Seery, Aidan.
Subjects/Keywords: Criticality; critical thinking; Phronesis; Reasons-Normativity
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APA (6th Edition):
DUNNE, G. J. (2019). Critical Thinking: A Neo-Aristotelian Perspective. (Thesis). Trinity College Dublin. Retrieved from http://hdl.handle.net/2262/86046
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
DUNNE, GERARD JOHN. “Critical Thinking: A Neo-Aristotelian Perspective.” 2019. Thesis, Trinity College Dublin. Accessed February 27, 2021.
http://hdl.handle.net/2262/86046.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
DUNNE, GERARD JOHN. “Critical Thinking: A Neo-Aristotelian Perspective.” 2019. Web. 27 Feb 2021.
Vancouver:
DUNNE GJ. Critical Thinking: A Neo-Aristotelian Perspective. [Internet] [Thesis]. Trinity College Dublin; 2019. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2262/86046.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
DUNNE GJ. Critical Thinking: A Neo-Aristotelian Perspective. [Thesis]. Trinity College Dublin; 2019. Available from: http://hdl.handle.net/2262/86046
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rice University
11.
Liu, Chia-Chuan.
Quantum criticality of strongly correlated systems.
Degree: PhD, Natural Sciences, 2020, Rice University
URL: http://hdl.handle.net/1911/108364
► Quantum criticality has been an active research topic in condensed matter physics, with major efforts being devoted to the heavy fermion material in which local…
(more)
▼ Quantum
criticality has been an active research topic in condensed matter physics, with major efforts being devoted to the heavy fermion material in which local moments are coupled with itinerant electrons through Kondo coupling. The competition between Kondo coupling and the antiferromagnetic RKKY coupling between local moments leads to a rich global phase diagram for these systems. It is a fundamentally important but challenging problem to develop a unified scheme to understand such global phase diagram.
We approach this issue from the magnetically ordered side by using a quantum non-linear sigma model (QNLS M) to represent the local moments. We firstly study the consequence of skyrmion defects of antiferromagnetism on a honeycomb lattice. We solve the low energy effective Dirac Hamiltonian in the skyrmion background, and then identify the singlet orders through an enhanced correlations in the corresponding channels. In addition, we perform a renormalization group (RG) analysis of the QNLS M with a Kondo coupling by treating both bosonic and fermionic degrees of freedom on an equal footing. These results shed new insight into the global phase diagram of the heavy fermion systems.
Recent evidence of two consecutive Kondo destruction quantum critical points(QCPs) in Ce3Pd20Si6 also provides an interesting extension of the global phase diagram. Motivated by this development, we study a spin-orbital coupled Bose-Fermi Kondo model. By performing a Coulomb-gas based RG calculation of this model with Ising anisotropy, we show that a generic trajectory in the parameter space contains two QCPs associated with the destruction of the orbital and spin Kondo effects, respectively.
Not only the heavy fermion systems, iron pnictides also provide a platform to study quantum
criticality. The new ingredient here is that the quantum critical singularties in the nematic and magnetic channels are concurrent, and their relationship has yet to be clarified. Here we study this problem within an effective Ginzburg-Landau theory for both channels in the presence of a small external uniaxial potential that breaks the lattice C4 symmetry. We establish an identity that connects the spin excitation anisotropy, which is the difference of the dynamical spin susceptibilities at two ordering wave vectors Q1 = ( pi, 0) and Q2 = (0,pi ), with the dynamical magnetic susceptibility and static nematic susceptibility. Using this identity, we introduce a scaling procedure to determine the dynamical nematic susceptibility in the quantum critical regime, and illustrate the procedure in the case of the optimally Ni-doped BaFe2As2.
Advisors/Committee Members: Si, Qimiao (advisor).
Subjects/Keywords: Quantum criticality; heavy fermion; iron pnictides
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, C. (2020). Quantum criticality of strongly correlated systems. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/108364
Chicago Manual of Style (16th Edition):
Liu, Chia-Chuan. “Quantum criticality of strongly correlated systems.” 2020. Doctoral Dissertation, Rice University. Accessed February 27, 2021.
http://hdl.handle.net/1911/108364.
MLA Handbook (7th Edition):
Liu, Chia-Chuan. “Quantum criticality of strongly correlated systems.” 2020. Web. 27 Feb 2021.
Vancouver:
Liu C. Quantum criticality of strongly correlated systems. [Internet] [Doctoral dissertation]. Rice University; 2020. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1911/108364.
Council of Science Editors:
Liu C. Quantum criticality of strongly correlated systems. [Doctoral Dissertation]. Rice University; 2020. Available from: http://hdl.handle.net/1911/108364

University of North Texas
12.
Zare, Marzieh.
Cooperation-induced Criticality in Neural Networks.
Degree: 2013, University of North Texas
URL: https://digital.library.unt.edu/ark:/67531/metadc283813/
► The human brain is considered to be the most complex and powerful information-processing device in the known universe. The fundamental concepts behind the physics of…
(more)
▼ The human brain is considered to be the most complex and powerful information-processing device in the known universe. The fundamental concepts behind the physics of complex systems motivate scientists to investigate the human brain as a collective property emerging from the interaction of thousand agents. In this dissertation, I investigate the emergence of cooperation-induced properties in a system of interacting units. I demonstrate that the neural network of my research generates a series of properties such as avalanche distribution in size and duration coinciding with the experimental results on neural networks both in vivo and in vitro. Focusing attention on temporal complexity and fractal index of the system, I discuss how to define an order parameter and phase transition.
Criticality is assumed to correspond to the emergence of temporal complexity, interpreted as a manifestation of non-Poisson renewal dynamics. In addition, I study the transmission of information between two networks to confirm the
criticality and discuss how the network topology changes over time in the light of Hebbian learning.
Advisors/Committee Members: Grigolini, Paolo, Krokhin, Arkadii, Gross, Guenter, Kowalski, Jacek.
Subjects/Keywords: Cooperation; criticality; temporal complexity; phase transition
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Virginia Tech
13.
Butler, James Michael.
Benchmarking of the RAPID Eigenvalue Algorithm using the ICSBEP Handbook.
Degree: MS, Nuclear Engineering, 2019, Virginia Tech
URL: http://hdl.handle.net/10919/93745
► In the modeling and simulation of nuclear systems, two parameters are of key importance: the system eigenvalue and the fission distribution. The system eigenvalue, known…
(more)
▼ In the modeling and simulation of nuclear systems, two parameters are of key importance: the system eigenvalue and the fission distribution. The system eigenvalue, known as kef f , is the ratio of neutron production from fission in the current neutron generation compared with the absorption and leakage of neutrons from the system in the previous neutron generation. When this ratio is equal to one, the system is critical and is a self-sustaining chain reaction. Knowledge of the fission distribution is important in the nuclear power industry, as it enables engineers to determine the best reactor core assembly configuration to maintain an even power distribution. Several methods have been developed over the years to effectively solve for a nuclear systems fission distribution and system eigenvalue. Aspects of both Monte Carlo and deterministic transport methods have been combined into RAPID’s MRT methodology. It is capable of accurately determining the system eigenvalue and fission distribution in real time. This thesis examines the accuracy of the RAPID algorithm using four unique problems from the ICSBEP handbook. These problems help us to test the limits of the FM method in RAPID through the modeling of small, unique geometric configurations not seen in large, uniformly configured power reactor cores and spent fuel pools. For comparison, each problem is modeled using the Serpent Monte Carlo code, an accurate code meant to serve as the industry standard for determination of the fission distribution of each problem. This model is then used to generate a set of FM coefficients for use in RAPID calculations. It is demonstrated that the eigenvalues calculated by RAPID and Serpent agree with the experimental data within the given experimental uncertainty. The fission distribution obtained by RAPID is also in agreement with the Serpent reference model. Finally, the RAPID eigenvalue calculation is significantly faster than the corresponding Serpent reference model, with speed-ups ranging from 4x to 34x demonstrated.
Advisors/Committee Members: Haghighat, Alireza (committeechair), Pitchumani, Ranga (committee member), Pierson, Mark Alan (committee member).
Subjects/Keywords: neutron transport theory; fission matrix; criticality safety
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Butler, J. M. (2019). Benchmarking of the RAPID Eigenvalue Algorithm using the ICSBEP Handbook. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/93745
Chicago Manual of Style (16th Edition):
Butler, James Michael. “Benchmarking of the RAPID Eigenvalue Algorithm using the ICSBEP Handbook.” 2019. Masters Thesis, Virginia Tech. Accessed February 27, 2021.
http://hdl.handle.net/10919/93745.
MLA Handbook (7th Edition):
Butler, James Michael. “Benchmarking of the RAPID Eigenvalue Algorithm using the ICSBEP Handbook.” 2019. Web. 27 Feb 2021.
Vancouver:
Butler JM. Benchmarking of the RAPID Eigenvalue Algorithm using the ICSBEP Handbook. [Internet] [Masters thesis]. Virginia Tech; 2019. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10919/93745.
Council of Science Editors:
Butler JM. Benchmarking of the RAPID Eigenvalue Algorithm using the ICSBEP Handbook. [Masters Thesis]. Virginia Tech; 2019. Available from: http://hdl.handle.net/10919/93745

University of New South Wales
14.
Kharkov, Yaroslav.
Quantum critical matter: Casimir pairing, emergent orders and topological defects.
Degree: Physics, 2017, University of New South Wales
URL: http://handle.unsw.edu.au/1959.4/58863
;
https://unsworks.unsw.edu.au/fapi/datastream/unsworks:47822/SOURCE02?view=true
► In this thesis we address a few problems on critical phenomena in two- and three dimensionalquantum materials. Specifically we consider high temperature superconductors, dimerized quantum…
(more)
▼ In this thesis we address a few problems on critical phenomena in two- and three dimensionalquantum materials. Specifically we consider high temperature superconductors, dimerized quantum magnets and frustrated magnets.First, motivated by the recent discovery of a magnetic quantum critical point in hole-doped cuprates, we study the influence of the
criticality on the superconducting pairing. We consider a fermion- fermion interaction in a 2D system at a quantum critical point. We found a new physical mechanism of fermion pairing by quantum critical fluctuations, that is similar to a Casimir effect. The Casimir pairing mechanism has conceptual similarities with chiral bag models in quantum chromodynamics and is generic for a wide class of quantum phase transitions.Second, we consider an impurity screening problem in a 3D magnet close to a quantum critical point. We show that a local magnetic moment of the impurity becomes screened by the cloud of critical magnons and we calculate the distribution of a magnetization in the cloud. Our results show that adding a small concentration of impurities can significantly affect critical properties of the system.Next, we perform a phenomenological study of incommensurate charge density wave (CDW) in cuprates. Proceeding with a combined analysis of recent experimental data on the CDW, we find the amplitude and the spatial pattern of the CDW. From nuclear magnetic resonance data we extract the s, s' and d-wave amplitudes of the CDW and rule out the checkerboard pattern of the CDW. We show that data potentially rules out a wide class of theoretical models of the CDW.Finally, we consider topological defects (skyrmions and merons) in frustrated magnets which are in the vicinity of a phase transition from a collinear to a spiral magnetic state.We show that isolated metastable skyrmions can exist in the absence of an external magnetic field in frustrated magnets with an easy-axis/easy-plane anisotropy. We found exotic skyrmion states with a large topological charge: skyrmion rings and meron rings.In the systems with easy-plane spin anisotropy we demonstrated that at the critical point a skyrmion with a unit topological charge ``fractionalizes'' into a pair of merons.
Advisors/Committee Members: Sushkov, Oleg, Physics, Faculty of Science, UNSW.
Subjects/Keywords: High temperature superconductivity; Quantum criticality; Quantum magnetism
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Kharkov, Y. (2017). Quantum critical matter: Casimir pairing, emergent orders and topological defects. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/58863 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:47822/SOURCE02?view=true
Chicago Manual of Style (16th Edition):
Kharkov, Yaroslav. “Quantum critical matter: Casimir pairing, emergent orders and topological defects.” 2017. Doctoral Dissertation, University of New South Wales. Accessed February 27, 2021.
http://handle.unsw.edu.au/1959.4/58863 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:47822/SOURCE02?view=true.
MLA Handbook (7th Edition):
Kharkov, Yaroslav. “Quantum critical matter: Casimir pairing, emergent orders and topological defects.” 2017. Web. 27 Feb 2021.
Vancouver:
Kharkov Y. Quantum critical matter: Casimir pairing, emergent orders and topological defects. [Internet] [Doctoral dissertation]. University of New South Wales; 2017. [cited 2021 Feb 27].
Available from: http://handle.unsw.edu.au/1959.4/58863 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:47822/SOURCE02?view=true.
Council of Science Editors:
Kharkov Y. Quantum critical matter: Casimir pairing, emergent orders and topological defects. [Doctoral Dissertation]. University of New South Wales; 2017. Available from: http://handle.unsw.edu.au/1959.4/58863 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:47822/SOURCE02?view=true
15.
Iacovelli, Saverio.
Adaptive mid-term and short-term scheduling of mixed-criticality systems.
Degree: PhD, 2019, University of Hertfordshire
URL: http://hdl.handle.net/2299/22157
► A mixed-criticality real-time system is a real-time system having multiple tasks classified according to their criticality. Research on mixed-criticality systems started to provide an effective…
(more)
▼ A mixed-criticality real-time system is a real-time system having multiple tasks classified according to their criticality. Research on mixed-criticality systems started to provide an effective and cost efficient a priori verification process for safety critical systems. The higher the criticality of a task within a system and the more the system should guarantee the required level of service for it. However, such model poses new challenges with respect to scheduling and fault tolerance within real-time systems. Currently, mixed-criticality scheduling protocols severely degrade lower criticality tasks in case of resource shortage to provide the required level of service for the most critical ones. The actual research challenge in this field is to devise robust scheduling protocols to minimise the impact on less critical tasks. This dissertation introduces two approaches, one short-term and the other medium-term, to appropriately allocate computing resources to tasks within mixed-criticality systems both on uniprocessor and multiprocessor systems. The short-term strategy consists of a protocol named Lazy Bailout Protocol (LBP) to schedule mixed-criticality task sets on single core architectures. Scheduling decisions are made about tasks that are active in the ready queue and that have to be dispatched to the CPU. LBP minimises the service degradation for lower criticality tasks by providing to them a background execution during the system idle time. After, I refined LBP with variants that aim to further increase the service level provided for lower criticality tasks. However, this is achieved at an increased cost of either system offline analysis or complexity at runtime. The second approach, named Adaptive Tolerance-based Mixed-criticality Protocol (ATMP), decides at runtime which task has to be allocated to the active cores according to the available resources. ATMP permits to optimise the overall system utility by tuning the system workload in case of shortage of computing capacity at runtime. Unlike the majority of current mixed-criticality approaches, ATMP allows to smoothly degrade also higher criticality tasks to keep allocated lower criticality ones.
Subjects/Keywords: Real-time systems; Mixed-criticality systems; Fixed-priority scheduling; Mixed-criticality scheduling on on unicore sustems; Mixed-criticality partitioned scheduling; Utility optimisation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Iacovelli, S. (2019). Adaptive mid-term and short-term scheduling of mixed-criticality systems. (Doctoral Dissertation). University of Hertfordshire. Retrieved from http://hdl.handle.net/2299/22157
Chicago Manual of Style (16th Edition):
Iacovelli, Saverio. “Adaptive mid-term and short-term scheduling of mixed-criticality systems.” 2019. Doctoral Dissertation, University of Hertfordshire. Accessed February 27, 2021.
http://hdl.handle.net/2299/22157.
MLA Handbook (7th Edition):
Iacovelli, Saverio. “Adaptive mid-term and short-term scheduling of mixed-criticality systems.” 2019. Web. 27 Feb 2021.
Vancouver:
Iacovelli S. Adaptive mid-term and short-term scheduling of mixed-criticality systems. [Internet] [Doctoral dissertation]. University of Hertfordshire; 2019. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2299/22157.
Council of Science Editors:
Iacovelli S. Adaptive mid-term and short-term scheduling of mixed-criticality systems. [Doctoral Dissertation]. University of Hertfordshire; 2019. Available from: http://hdl.handle.net/2299/22157

Uppsala University
16.
Westrin, Pontus.
External Conditions Effects on the Self-Organised Criticality of the Calving Glacier Front of Tunabreen, Svalbard.
Degree: Earth Sciences, 2015, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255867
► Mass balance processes in glaciers are important for determining the growth or retreat of ice. Calving, the mechanical breakage of ice bergs from a…
(more)
▼ Mass balance processes in glaciers are important for determining the growth or retreat of ice. Calving, the mechanical breakage of ice bergs from a glacier front, is a poorly understood phenomenon. This process has great importance to the mass balance of many glaciers, for example on Antarctica and in the Arctic. A recent paper by Åström et al. (2014) compare calving fronts to Self-Organized Critical (SOC) systems, especially the Abelian sand pile model, meaning that the calving front will stay at a critical state at all times. Fluctuations in external conditions will cause the glacier front to either retreat or advance. The calving frequency and size distribution of Tunabreen, a tidewater glacier in Svalbard, was studied during August and September, 2014, with the use of a time-lapse camera set up in front of the calving front. An 11-day period is studied in detail and compared to certain external factors, i.e. tide, air temperature, humidity, atmospheric pressure, wind speed and wind direction. The results are also compared to the relationships found by Åström et al. (2014). The results vary: tide relationships are found as the amplitude reaches above 1 meter, but seize to correlate as the tide falls off. Temperature trends are found for certain periods, but are of low credibility. Humidity, atmospheric pressure, wind speed and wind direction show low to no correlation with the calving size distribution. Fragment size distribution and calving rates show good correlation with the results from Åström et al. (2014). This helps to confirm the theory of SOC applied to calving fronts. Time-lapse photography is deemed as a good way to observe calving fronts, but have certain problems which are mostly related to the weather. Longer time periods would be needed to find better long term relationships between external conditions and calving frequencies, but data is hard to acquire and time consuming to process. The theory of SOC applied to calving fronts is promising and opens up new discussions for the research community.
Massbalansprocesser för glaciärer är viktiga för att bestämma om isen drar sig tillbaka eller avancerar. Den mekaniska brytningen av isberg från glaciärer kallas kalvning. Kalvning är väldigt viktig för ett flertal glaciärers massbalans, exempelvis för landisen på Antarktis och glaciärer i Arktis. Ny forskning visar att kalvande glaciärfronter alltid försöker befinna sig i ett kritiskt läge, liknande ett så kallat Self-Organized Critical (SOC) system. Detta kan liknas vid hur en sandhög försöker befinna sig vid sin kritiska sluttningsvinkel när ett konstant flöde av sandkorn adderas. Adderandet av sandkorn kan jämföras med hur externa förhållanden, så som temperatur och tidvatten, ändras. När dessa värden ändras med tid så kommer fronten kalva, mycket likt hur sandhögen rasar när sandkorn tillförs. Externa förhållanden kommer alltså styra om glaciären kalvar eller inte, och när.En time-lapse-kamera installerades framför Tunabreen, en tidvatten glaciär på Svalbard, under Augusti-September, 2014.…
Subjects/Keywords: Calving; calving model; self-organized criticality; glacier dynamics; Tunabreen; Kalvning; kalvningsmodell; self-organized criticality; glaciärdynamik; Tunabreen; Physical Geography; Naturgeografi
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Manager
APA (6th Edition):
Westrin, P. (2015). External Conditions Effects on the Self-Organised Criticality of the Calving Glacier Front of Tunabreen, Svalbard. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255867
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Westrin, Pontus. “External Conditions Effects on the Self-Organised Criticality of the Calving Glacier Front of Tunabreen, Svalbard.” 2015. Thesis, Uppsala University. Accessed February 27, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255867.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Westrin, Pontus. “External Conditions Effects on the Self-Organised Criticality of the Calving Glacier Front of Tunabreen, Svalbard.” 2015. Web. 27 Feb 2021.
Vancouver:
Westrin P. External Conditions Effects on the Self-Organised Criticality of the Calving Glacier Front of Tunabreen, Svalbard. [Internet] [Thesis]. Uppsala University; 2015. [cited 2021 Feb 27].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255867.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Westrin P. External Conditions Effects on the Self-Organised Criticality of the Calving Glacier Front of Tunabreen, Svalbard. [Thesis]. Uppsala University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255867
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
17.
Regiane de Souza Costa.
Configuração da Educação Física no CTUR Entrelaçamentos Cotidianos e Possibilidades Pedagógicas. 2010.
Degree: 2010, Universidade Federal Rural do Rio de Janeiro
URL: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1529
► Esta dissertação está fundamentada na pesquisa realizada no Colégio Técnico da Universidade Rural (CTUR/UFRRJ), contando com a participação de estudantes do 3 ano do Curso…
(more)
▼ Esta dissertação está fundamentada na pesquisa realizada no Colégio Técnico da Universidade Rural (CTUR/UFRRJ), contando com a participação de estudantes do 3 ano do Curso Técnico em Agropecuária Orgânica, um dos professores de Educação Física da escola e, ainda, uma observadora dos processos pedagógicos. Traz consigo a preocupação central com uma Educação Física crítica e emancipatória e seus elementos constitutivos para a formação humana/profissional. Apresentou como objetivo geral investigar a manifestação da Educação Física Escolar como componente curricular da Educação Profissional Agrícola do CTUR. Para tanto, debruçou-se sobre um aporte teórico-metodológico que permitiu captar as variações cotidianas dispostas na realidade. Contou com a Abordagem Qualitativa de Pesquisa em Educação, tendo a Metodologia da Pesquisa-Ação o seu principal eixo orientador. Sob esta fundamentação foi possível conhecer, num primeiro momento, como a Educação Física se manifestou nos anos escolares, com base na relação objetivos-métodos-avaliação. Num segundo momento, foram utilizadas as descrições quanto à configuração da Educação Física nos anos anteriores para que fossem construídas, pelo coletivo envolvido na pesquisa, oficinas temáticas, visando possibilitar um processo de sensibilização/reflexão diante da pluralidade de interpretações que esta área é capaz de apresentar. Os temas orientadores das oficinas foram baseados na Matriz de Referência para o Novo ENEM 2009, reformulação do Exame Nacional do Ensino Médio proposta pelo Ministério da Educação. A conjugação dos dados obtidos com a aplicação dos questionários, das entrevistas, dos relatos dos estudantes e das observações dos espaçostempos pedagógicos sinalizou que a Educação Física, quando tratada nas suas múltiplas possibilidades interpretativas, apoiando-se na criticidade, se apresenta como um importante componente para a formação do homem, numa perspectiva holística.
This dissertation is based on research conducted at the Technical College of Rural University (CTUR / UFRRJ), with the participation of students in 3rd year of the Technical Course in Agricultural Structure, one of the teachers of Physical Education School and also an observer of pedagogical processes. Brings with it the main concern a critical and emancipatory Physical Education and its elements for the human / professional formation. Its objective is to investigate the manifestation of physical education as a curricular component of the Vocation Agricultural Education from CTUR. For this, its focused on a theoretical and methodological framework that allowed capture changes in everyday reality. Approach based on Qualitative Research in Education, and the Methodology of Action Research as its main key element. Under this reasoning was possible to know at first, such as physical education was manifested in the school years, based on the relation-goals-assessment methods. Secondly, the descriptions were used as the setting of Physical Education in previous years that were built by the group involved in…
Advisors/Committee Members: Nádia Maria Pereira de Souza.
Subjects/Keywords: formação holística; emancipação; criticidade; EDUCACAO; training holistic; emancipation; criticality
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Costa, R. d. S. (2010). Configuração da Educação Física no CTUR Entrelaçamentos Cotidianos e Possibilidades Pedagógicas. 2010. (Thesis). Universidade Federal Rural do Rio de Janeiro. Retrieved from http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1529
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Costa, Regiane de Souza. “Configuração da Educação Física no CTUR Entrelaçamentos Cotidianos e Possibilidades Pedagógicas. 2010.” 2010. Thesis, Universidade Federal Rural do Rio de Janeiro. Accessed February 27, 2021.
http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1529.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Costa, Regiane de Souza. “Configuração da Educação Física no CTUR Entrelaçamentos Cotidianos e Possibilidades Pedagógicas. 2010.” 2010. Web. 27 Feb 2021.
Vancouver:
Costa RdS. Configuração da Educação Física no CTUR Entrelaçamentos Cotidianos e Possibilidades Pedagógicas. 2010. [Internet] [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2010. [cited 2021 Feb 27].
Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1529.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Costa RdS. Configuração da Educação Física no CTUR Entrelaçamentos Cotidianos e Possibilidades Pedagógicas. 2010. [Thesis]. Universidade Federal Rural do Rio de Janeiro; 2010. Available from: http://bdtd.ufrrj.br//tde_busca/arquivo.php?codArquivo=1529
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
18.
Mouafo Tchinda, Yves.
Robustesse des applications temps-réel multicoeurs : techniques de construction d'un ordonnacement équitable tolérant aux pannes matérielles : Robustness of Multicore Real-Time Apllications : Building Techniques for Processor Failures Tolerant Scheduling.
Degree: Docteur es, Informatique et applications, 2017, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique
URL: http://www.theses.fr/2017ESMA0015
► Cette thèse propose des techniques de construction d'une séquence d'ordonnancement valide par un algorithme équitable pour des systèmes temps-réel multicoeurs subissant des pannes processeurs permanentes.…
(more)
▼ Cette thèse propose des techniques de construction d'une séquence d'ordonnancement valide par un algorithme équitable pour des systèmes temps-réel multicoeurs subissant des pannes processeurs permanentes. Selon la nature des tâches les concepteurs peuvent allouer ou pas du temps supplémentaire pour récupérer l'exécution perdue. Dans un premier temps, nous traitons le cas de la défaillance d'un seul coeur. Nous montrons alors que s'il n'y a pas d'allocation de temps supplémentaire, prévoir un coeur de plus que le minimum nécessaire permet de construire une séquence valide : c'est la Technique de la Redondance Matérielle Limitée. Toutefois, si une telle allocation s'impose, nous proposons trois techniques : la Technique des Sous-tâches de Substitution qui augmente le WCET des tâches afin de prévoir du temps additionnel en remplacement du temps perdu, la Technique Contraindre puis Relâcher qui crée une marge de temps entre le délai critique et la période d'une tâche pour rattraper l'exécution perdue et la Technique du Flux Apériodique (TFA) qui réordonnance l'exécution perdue dans les unités de temps creux équitablement réparties. Ensuite, l'utilisation conjointe de ces techniques est envisagée en fonction de la nature des tâches impactées. Enfin, le cas de la défaillance de plusieurs coeurs est étudié. Pour ajuster la charge du système au nombre de coeurs fonctionnels, deux approches sont proposées : le changement de mode de criticité qui modifie les paramètres temporels de certaines tâches et l'abandon de certaines tâches en fonction de leur importance dans le système.
This thesis proposes several techniques to build a valid schedule with a Pfair algorithm for multicore real-time systems despite permanent processor failures. Depending on the nature of the tasks, additional time may be allocated or not to recover the lost execution. First, we consider a single core failure. We then show that if no additional time is allocated, the use of a single more core than the required minimum provides a valid schedule : it is the Limited Hardware Redundancy Technique. However, if full recovery is mandatory, we propose three techniques : the Substitute Subtasks Technique which increases the WCET to provide additionnal time which can be used to recover the lost time, the Constrain and Release Technique which creates a time margin between each task's deadline and the following period which can be used to recover the lost execution and the Aperiodic Flow Technique which reschedules the lost execution within the idle time units. Then, these techniques are mixed to adapt the scheduling behaviour to the nature of the impacted tasks. Finally, the case of the failure of several cores is studied.To adapt the system load to the number of remaining functionnal cores we use the criticality mode change which modifies the temporal parameters of some tasks or we discard some tasks according to their importance.
Advisors/Committee Members: Choquet-Geniet, Annie (thesis director), Largeteau-Skapin, Gaëlle (thesis director).
Subjects/Keywords: Algorithmes équitables; Systèmes à criticité multiple; Fair algorithms; Mixed criticality systemes
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mouafo Tchinda, Y. (2017). Robustesse des applications temps-réel multicoeurs : techniques de construction d'un ordonnacement équitable tolérant aux pannes matérielles : Robustness of Multicore Real-Time Apllications : Building Techniques for Processor Failures Tolerant Scheduling. (Doctoral Dissertation). Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique. Retrieved from http://www.theses.fr/2017ESMA0015
Chicago Manual of Style (16th Edition):
Mouafo Tchinda, Yves. “Robustesse des applications temps-réel multicoeurs : techniques de construction d'un ordonnacement équitable tolérant aux pannes matérielles : Robustness of Multicore Real-Time Apllications : Building Techniques for Processor Failures Tolerant Scheduling.” 2017. Doctoral Dissertation, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique. Accessed February 27, 2021.
http://www.theses.fr/2017ESMA0015.
MLA Handbook (7th Edition):
Mouafo Tchinda, Yves. “Robustesse des applications temps-réel multicoeurs : techniques de construction d'un ordonnacement équitable tolérant aux pannes matérielles : Robustness of Multicore Real-Time Apllications : Building Techniques for Processor Failures Tolerant Scheduling.” 2017. Web. 27 Feb 2021.
Vancouver:
Mouafo Tchinda Y. Robustesse des applications temps-réel multicoeurs : techniques de construction d'un ordonnacement équitable tolérant aux pannes matérielles : Robustness of Multicore Real-Time Apllications : Building Techniques for Processor Failures Tolerant Scheduling. [Internet] [Doctoral dissertation]. Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique; 2017. [cited 2021 Feb 27].
Available from: http://www.theses.fr/2017ESMA0015.
Council of Science Editors:
Mouafo Tchinda Y. Robustesse des applications temps-réel multicoeurs : techniques de construction d'un ordonnacement équitable tolérant aux pannes matérielles : Robustness of Multicore Real-Time Apllications : Building Techniques for Processor Failures Tolerant Scheduling. [Doctoral Dissertation]. Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique; 2017. Available from: http://www.theses.fr/2017ESMA0015
19.
Costa, Ariadne de Andrade.
Quasi-criticalidade auto-organizada em avalanches neuronais.
Degree: Mestrado, Física Aplicada à Medicina e Biologia, 2011, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/59/59135/tde-17112011-204509/
;
► Experimentos têm revelado que redes de neurônios, tanto in vitro como in vivo, mantêm atividade descrita por avalanches e se organizam em um estado crítico…
(more)
▼ Experimentos têm revelado que redes de neurônios, tanto in vitro como in vivo, mantêm atividade descrita por avalanches e se organizam em um estado crítico no qual essas avalanches são distribuídas de acordo com leis de potência. Mostramos no presente trabalho que um modelo de rede de elementos excitáveis com sinapses dinâ- micas é capaz de exibir criticalidade auto-organizada para ampla região do espaço de parâmetros. Nossos resultados estão de acordo com outros estudos que indicam que a depressão sináptica de curto prazo constitui mecanismo suciente para produzir criticalidade em avalanches neuronais. No entanto, segundo diversos pesquisadores, embora o ajuste de parâmetros seja grosso para que haja criticalidade no modelo, é mais preciso dizer que o sistema não apresenta criticalidade auto-organizada genu ína, mas sim quasi-criticalidade auto-organizada, como os demais modelos não conservativos presentes na literatura.
Experiments have shown that neuronal networks, both in vitro and in vivo, maintain activity described by avalanches and they are organized into a critical state in which these avalanches are distributed according to power laws. We have demonstrated that a model based on a network of excitable elements with dynamical synapses is able to exhibit self-organized criticality for a wide range of the parameter\'s space. Our results are consistent with other studies that suggest short-term synaptic depression is enough to produce criticality in neuronal avalanches. However, according to several researchers, in spite of the tuning to be gross to ensure that there is criticality in the model, it is more accurate do not say that the system presents genuine self-organized criticality, but self-organized quasi-criticality as the other non-conservative models in the literature.
Advisors/Committee Members: Kinouchi Filho, Osame.
Subjects/Keywords: avalanches neuronais; criticalidade auto-organizada; neuronal avalanches; self-organized criticality
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Costa, A. d. A. (2011). Quasi-criticalidade auto-organizada em avalanches neuronais. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/59/59135/tde-17112011-204509/ ;
Chicago Manual of Style (16th Edition):
Costa, Ariadne de Andrade. “Quasi-criticalidade auto-organizada em avalanches neuronais.” 2011. Masters Thesis, University of São Paulo. Accessed February 27, 2021.
http://www.teses.usp.br/teses/disponiveis/59/59135/tde-17112011-204509/ ;.
MLA Handbook (7th Edition):
Costa, Ariadne de Andrade. “Quasi-criticalidade auto-organizada em avalanches neuronais.” 2011. Web. 27 Feb 2021.
Vancouver:
Costa AdA. Quasi-criticalidade auto-organizada em avalanches neuronais. [Internet] [Masters thesis]. University of São Paulo; 2011. [cited 2021 Feb 27].
Available from: http://www.teses.usp.br/teses/disponiveis/59/59135/tde-17112011-204509/ ;.
Council of Science Editors:
Costa AdA. Quasi-criticalidade auto-organizada em avalanches neuronais. [Masters Thesis]. University of São Paulo; 2011. Available from: http://www.teses.usp.br/teses/disponiveis/59/59135/tde-17112011-204509/ ;

University of Michigan
20.
Tinsman, Colin.
Thermal Hall Effect Measurements Using Strontium Titanate Microthermometers.
Degree: PhD, Applied Physics, 2019, University of Michigan
URL: http://hdl.handle.net/2027.42/153332
► Thermal measurements are an important tool for experimental condensed matter physics. They are the most general methods available: any excitation in a solid will carry…
(more)
▼ Thermal measurements are an important tool for experimental condensed matter
physics. They are the most general methods available: any excitation in a solid
will carry energy, and thus heat. Such measurements require accurate and precise
temperature readings at multiple points on a crystal, often only a few millimeters apart. This is especially important when making thermal Hall effect measurements, which require precision in intense magnetic fields that can interfere with resistive thermometers. We have exploited the strongly temperature dependent dielectric permittivity of strontium titanate to make capacitive thermometers which are not
subject to this interference. To test these thermometers, thermal Hall effect measurements were carried out on crystalline bismuth. Bismuth is one of the best known semimetals, a material which hosts both electrons and holes with high mobility. With the strontium titante microthermometers, we were able to conduct measurements up to 10 T and at temperatures down to 40 K. A large thermal Hall coefficient is measured, indicative of high mobility carriers. Another application of these techniques is thermal measurements of frustrated magnets. These systems often have itinerant excitations which do not carry charge, making thermal measurements all the more important. We discuss our measurements on strontium copper borate, in which pairs of spin-1/2 sites are paired up in strongly coupled dimers. The magnetic excitations of this system are mobile triplet states, called triplons. It has been predicted that these triplet bands could have non-trivial topology, making strontium copper borate a bosonic topological insulator, and resulting in a specific thermal Hall effect signal. Experimental measurements in this system
fail to find this signal, casting doubt on this theory. However, we observe magnetic field dependent thermal conductivity at temperatures below 1 K, where the triplet excitations should be frozen out. This may be related to another phenomena found in this material: the formation of spin superlattices.
Advisors/Committee Members: Li, Lu (committee member), Kurdak, Cagliyan (committee member), Sun, Kai (committee member), Zhong, Zhaohui (committee member).
Subjects/Keywords: Thermometry; Quantum Criticality; Frustrated Magnetism; Thermal Hall Effect; Physics; Science
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tinsman, C. (2019). Thermal Hall Effect Measurements Using Strontium Titanate Microthermometers. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/153332
Chicago Manual of Style (16th Edition):
Tinsman, Colin. “Thermal Hall Effect Measurements Using Strontium Titanate Microthermometers.” 2019. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021.
http://hdl.handle.net/2027.42/153332.
MLA Handbook (7th Edition):
Tinsman, Colin. “Thermal Hall Effect Measurements Using Strontium Titanate Microthermometers.” 2019. Web. 27 Feb 2021.
Vancouver:
Tinsman C. Thermal Hall Effect Measurements Using Strontium Titanate Microthermometers. [Internet] [Doctoral dissertation]. University of Michigan; 2019. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2027.42/153332.
Council of Science Editors:
Tinsman C. Thermal Hall Effect Measurements Using Strontium Titanate Microthermometers. [Doctoral Dissertation]. University of Michigan; 2019. Available from: http://hdl.handle.net/2027.42/153332

Penn State University
21.
Gill, Daniel Fury.
Newton-Krylov Methods for the Solution of the k-Eigenvalue Problem in Multigroup Neutronics Calculations
.
Degree: 2009, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/10162
► In this work we propose using Newton's method, specifically the inexact Newton-GMRES formulation, to solve the k-eigenvalue problem in both transport and diffusion neutronics problems.…
(more)
▼ In this work we propose using Newton's method, specifically the inexact Newton-GMRES formulation, to solve the k-eigenvalue problem in both transport and diffusion neutronics problems. This is achieved by choosing a nonlinear function whose roots are the eigenpairs of the k-eigenvalue calculation and then using Newton's method to solve the nonlinear system. The flexibility resulting from the use of a Krylov subspace method to solve the linear Newton step can be further extended via the use of the Jacobian-Free Newton-Krylov (JFNK) approximation, which requires no knowledge of the system's Jacobian; instead only the ability to evaluate the system residual is necessary. This makes it possible to avoid the computational and memory costs associated with the construction and storage of the Jacobian, resulting in an efficient solution algorithm. Writing the k-eigenvalue problem as a nonlinear function yields a number of formulations, all of which all have the desired roots.
For the diffusion approximation, the nonlinear function is written in the form of the generalized eigenvalue problem and a set of preconditioners is developed and applied to the GMRES iterations that are used to solve the linearized Newton problem. Most of the developed methods can be implemented as either Newton-Krylov (NK) methods, where the Jacobian-vector product is formed using the explicitly constructed Jacobian, or via the JFNK approximation, where a finite-difference perturbation is used to approximate the Jacobian-vector product. One particularly effective preconditioning option comprises the use of the standard power iteration to precondition the GMRES iteration on either the right or the left. Preconditioning on the left, denoted JFNK(PI), results in a modified nonlinear system whose implementation only requires the ability to perform a single traditional outer iteration, making this approach relatively simple to wrap around an existing diffusion theory k-eigenvalue problem solver. Other preconditioning options, such as the Incomplete Cholesky decomposition of the within-group diffusion matrix, are also considered.
Similar methods were developed for transport theory, cast using an operator notation that greatly simplifies their presentation. All of the nonlinear functions developed are written in terms of a generic fixed-point iteration, with a number of specific fixed-point formulations considered. Each fixed-point scheme represents a viable k-eigenvalue problem solution method, with two of the techniques corresponding to traditionally used iterative schemes. The new methods developed can also be wrapped around existing software in most instances, simplifying the implementation process. Ultimately it is seen that the most effective of the Newton formulations in transport theory is wrapped around a k-eigenvalue formulation that is a very special instance of traditional methods: no upscattering iterations are performed, only one inner iteration completed per outer, using source iteration with the previous outer iterate as the initial guess.…
Advisors/Committee Members: Yousry Azmy, Dissertation Advisor/Co-Advisor, Yousry Azmy, Committee Chair/Co-Chair, Seungjin Kim, Committee Chair/Co-Chair, Kostadin Nikolov Ivanov, Committee Member, Ludmil Tomov Zikatanov, Committee Member, Robert I Grove, Committee Member, Brian Aviles, Committee Member.
Subjects/Keywords: JFNK; Criticality; Neutron transport; eigenvalue
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gill, D. F. (2009). Newton-Krylov Methods for the Solution of the k-Eigenvalue Problem in Multigroup Neutronics Calculations
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/10162
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gill, Daniel Fury. “Newton-Krylov Methods for the Solution of the k-Eigenvalue Problem in Multigroup Neutronics Calculations
.” 2009. Thesis, Penn State University. Accessed February 27, 2021.
https://submit-etda.libraries.psu.edu/catalog/10162.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gill, Daniel Fury. “Newton-Krylov Methods for the Solution of the k-Eigenvalue Problem in Multigroup Neutronics Calculations
.” 2009. Web. 27 Feb 2021.
Vancouver:
Gill DF. Newton-Krylov Methods for the Solution of the k-Eigenvalue Problem in Multigroup Neutronics Calculations
. [Internet] [Thesis]. Penn State University; 2009. [cited 2021 Feb 27].
Available from: https://submit-etda.libraries.psu.edu/catalog/10162.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gill DF. Newton-Krylov Methods for the Solution of the k-Eigenvalue Problem in Multigroup Neutronics Calculations
. [Thesis]. Penn State University; 2009. Available from: https://submit-etda.libraries.psu.edu/catalog/10162
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University
22.
Pritchard, Megan L.
Characterization Methodology for Decommissioning Low and Intermediate Level Fissile Nuclide Contaminated Buried Soils and Process Piping Using Photon Counting.
Degree: PhD, Nuclear Engineering, 2014, Texas A&M University
URL: http://hdl.handle.net/1969.1/152805
► A new approach to- and method for characterization of fissile nuclide contaminated soils and process piping has been developed and implemented for low and intermediate…
(more)
▼ A new approach to- and method for characterization of fissile nuclide
contaminated soils and process piping has been developed and implemented for low and
intermediate level wastes, using new calibration bases for photon counting. The method
has been validated by integrating the capabilities of MCNP5 and ISOCS for a LaBr
scintillator detector in combination with known radioactive standards. In addition, the
developed methods consider nuclear safety as the priority while retaining realistic fissile
mass and enrichment estimation techniques.
The impact of a quick, portable non-destructive assay process to the
decommissioning and remediation arena is extremely valuable. Traditional methods have
inherent limitations in time consumption, resources, stability, and rigidity. In addition to
optimizing a material blending and storage program, gaining a real-time understanding to
the nature of fissile material prior to disturbance aids a nuclear safety program and culture
invaluably.
In this dissertation, detailed detector-waste models were developed and utilized to
create a quick uranium mass and enrichment estimation process by taking advantage of
the resolution and discrimination capabilities of the LaBr equipped InSpector 1000
instrument. The analysis takes into account multiple possible scenarios that may be
encountered during decommissioning and remediation of a fuel fabrication and buried
nuclear waste facility, while keeping nuclear safety controls in mind.
As an inherent part of the process, the models were validated by performing a series of code-to-software and software-to-standard benchmarking procedures, which provided substantiation for use of the detector for the derived purposes, in addition to ensuring that the Monte Carlo-based calibration approach was conservative, as compared to other methods.
The scenarios analyzed for the calibration basis were selected based on historical knowledge and in-field experience at the Westinghouse Hematite Decommissioning Project.
The techniques developed in this dissertation offer a new characterization method for fissile material quantity and enrichment with a portable, passive non-destructive gamma assay system without relying on continual macroscopic system analysis. In addition, it provides early detection of large quantities of fissile material prior to exhumation or disturbance to enhance nuclear safety processes. This places the first priority on nuclear and radiological safety while preserving the time and money saving aspects of production-based projects.
Advisors/Committee Members: Tsvetkov, Pavel (advisor), McDeavitt, Sean (committee member), Marianno, Craig (committee member), Horvat, Vladimir (committee member), Allen, Donald (committee member).
Subjects/Keywords: LaBr detector; nuclear criticality safety; nuclide characterization; Monte Carlo; gamma spectroscopy
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MLA ·
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APA (6th Edition):
Pritchard, M. L. (2014). Characterization Methodology for Decommissioning Low and Intermediate Level Fissile Nuclide Contaminated Buried Soils and Process Piping Using Photon Counting. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/152805
Chicago Manual of Style (16th Edition):
Pritchard, Megan L. “Characterization Methodology for Decommissioning Low and Intermediate Level Fissile Nuclide Contaminated Buried Soils and Process Piping Using Photon Counting.” 2014. Doctoral Dissertation, Texas A&M University. Accessed February 27, 2021.
http://hdl.handle.net/1969.1/152805.
MLA Handbook (7th Edition):
Pritchard, Megan L. “Characterization Methodology for Decommissioning Low and Intermediate Level Fissile Nuclide Contaminated Buried Soils and Process Piping Using Photon Counting.” 2014. Web. 27 Feb 2021.
Vancouver:
Pritchard ML. Characterization Methodology for Decommissioning Low and Intermediate Level Fissile Nuclide Contaminated Buried Soils and Process Piping Using Photon Counting. [Internet] [Doctoral dissertation]. Texas A&M University; 2014. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1969.1/152805.
Council of Science Editors:
Pritchard ML. Characterization Methodology for Decommissioning Low and Intermediate Level Fissile Nuclide Contaminated Buried Soils and Process Piping Using Photon Counting. [Doctoral Dissertation]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/152805

University of California – Berkeley
23.
Salazar, Alex.
Criticality in the Far-Field of a Granitic Repository for Used Nuclear Fuel.
Degree: Nuclear Engineering, 2018, University of California – Berkeley
URL: http://www.escholarship.org/uc/item/3d76809f
► A repository for used nuclear fuel (UNF) must employ several barriers to reduce the risk of a lethal dose to the biosphere over geological periods…
(more)
▼ A repository for used nuclear fuel (UNF) must employ several barriers to reduce the risk of a lethal dose to the biosphere over geological periods of time. It is presumed that waste canisters can be engineered to prevent a critical configuration of fissile material by design. However, given the quantity of UNF in interim storage in the United States intended for final deposition, a comprehensive failure scenario involving the repository-wide leaching of fissile isotopes from used fuel, radionuclide transport in groundwater, and re-concentration in the far-field may eventually present a concern for criticality. Such a criticality event may create a pathway for fission products to the environment if the host rock is compromised. This dissertation explores the impact of far-field criticality on repository performance over long periods of time. It attempts to integrate all necessary processes and considerations under a notion of conservatism favoring the formation of a critical mass from used nuclear fuel. A critical deposition is hypothesized to pose a threat to the material integrity of the host rock through the steady release of heat over time, as opposed to the explosive releases of energy considered in previous studies. In particular, the role of thermal creep is evaluated as a steady-state failure metric, which emphasizes the combined role of reactivity feedback mechanisms and heat transfer in determining the temporal extent of chain reactions underground. The failure scenario is isolated among other relevant features, events, and processes as the primary concern of the performance assessment for a crystalline granitic repository. Repository loading cases are established based on the uncertainty in the current inventory of used nuclear fuel. These source terms are used in a radionuclide transport model that incorporates the Latin hypercube sampling method to probe the uncertainty in the total accumulation of uranium from advection in fractures. The configurations of fissile material in host rock required for criticality are evaluated based on representative precipitate compositions obtained from the transport analysis, where the role of a reducing and reflecting region of shale is emphasized. Given the nature of the critical depositions as both open reactor systems and porous media, a thermo-hydrological analysis is employed to evaluate the coupled heat and mass transfer in the geology when energy is released from fission reactions. This analysis is motivated by the assumption that reactivity behavior with evolving water content and temperature must be fully coupled, and boundary conditions are imposed to evaluate a maximal extent of desaturation. The observed changes in fluid content and densities in the system over time are used to guide an integrated neutronics evaluation incorporating the Doppler effect. Feedback coefficients covering the simultaneous effects of Doppler broadening, the loss of moderator, and the arriving plume of uranium solutes from the repository array are applied to a quasi-steady-state…
Subjects/Keywords: Nuclear engineering; consequence; criticality; far-field; repository; transport; used nuclear fuel
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Salazar, A. (2018). Criticality in the Far-Field of a Granitic Repository for Used Nuclear Fuel. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/3d76809f
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Salazar, Alex. “Criticality in the Far-Field of a Granitic Repository for Used Nuclear Fuel.” 2018. Thesis, University of California – Berkeley. Accessed February 27, 2021.
http://www.escholarship.org/uc/item/3d76809f.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Salazar, Alex. “Criticality in the Far-Field of a Granitic Repository for Used Nuclear Fuel.” 2018. Web. 27 Feb 2021.
Vancouver:
Salazar A. Criticality in the Far-Field of a Granitic Repository for Used Nuclear Fuel. [Internet] [Thesis]. University of California – Berkeley; 2018. [cited 2021 Feb 27].
Available from: http://www.escholarship.org/uc/item/3d76809f.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Salazar A. Criticality in the Far-Field of a Granitic Repository for Used Nuclear Fuel. [Thesis]. University of California – Berkeley; 2018. Available from: http://www.escholarship.org/uc/item/3d76809f
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Vrije Universiteit Amsterdam
24.
Irrmischer, M.
Criticalitity theory applied to the wandering mind and meditation
.
Degree: 2018, Vrije Universiteit Amsterdam
URL: http://hdl.handle.net/1871/55804
Subjects/Keywords: meditation;
criticality;
mind wandering;
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Irrmischer, M. (2018). Criticalitity theory applied to the wandering mind and meditation
. (Doctoral Dissertation). Vrije Universiteit Amsterdam. Retrieved from http://hdl.handle.net/1871/55804
Chicago Manual of Style (16th Edition):
Irrmischer, M. “Criticalitity theory applied to the wandering mind and meditation
.” 2018. Doctoral Dissertation, Vrije Universiteit Amsterdam. Accessed February 27, 2021.
http://hdl.handle.net/1871/55804.
MLA Handbook (7th Edition):
Irrmischer, M. “Criticalitity theory applied to the wandering mind and meditation
.” 2018. Web. 27 Feb 2021.
Vancouver:
Irrmischer M. Criticalitity theory applied to the wandering mind and meditation
. [Internet] [Doctoral dissertation]. Vrije Universiteit Amsterdam; 2018. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1871/55804.
Council of Science Editors:
Irrmischer M. Criticalitity theory applied to the wandering mind and meditation
. [Doctoral Dissertation]. Vrije Universiteit Amsterdam; 2018. Available from: http://hdl.handle.net/1871/55804

Freie Universität Berlin
25.
Moritz, Julia.
Blurring the boundaries? Institutional Critique in Spaces of Conflict.
Degree: 2013, Freie Universität Berlin
URL: https://refubium.fu-berlin.de/handle/fub188/11582
► How are contemporary artistic projects critically negotiating the conflictual condictions of their transnational institutional contexts, and what conclusions to the concept of institutional critique can…
(more)
▼ How are contemporary artistic projects critically negotiating the conflictual
condictions of their transnational institutional contexts, and what
conclusions to the concept of institutional critique can be drawn from this?
The
subject of my investigation is the problematization of art institutions
through artistic production. The shared context of globalized late capitalism,
its interactions of new artistic strategies and flexibilized administration is
my main focus. Discussing the possibilities of a specific program of
"institutional critique scholarship", I am scetching the processes of
canonization of institutional critique. The notion of failure provides access
to an understanding of the current debates on a "third wave". Departing from a
methodology of cultural analysis (Bal), the aesthetics of artistic production
(Clark) and the geography of art (Harvey), I am outlining the key terminology
of my project - criticism (Foucault), institution (the public), trans-
nationalization (Anderson). This leads me to arguing that the development of
institutional critique is defined by shifts within the concept of critique
rather than the different notions of institution. Thus the teleology of
"phases" need to be replaced by a horizontal model of different institution-
critical practices. Its condition of possibility of Irit Rogoff's concept of
criticality. The geopolitical and economic implications of institutional
critique itself shall be exposed in the interwoven histories of the artistic
movement and the Guggenheim Foundation (Buren, Haacke, 16 Beaver). The
opposition within and towards ideological claims to power can be theoretized
with Chantal Mouffe's development of the concept of antagonism towards the
position of agonism, the recognition of a shared symbolic field with the
enemy. In her reading of Gramsci institutions are perceived as temporary and
dependent hegemonic practices; its reform is the main responsibility of the
"organic intellectual". The principle of organicity is underpinning also the
stratagem of site specificity that Miwon Kwon has contrasted with the
increasing mobilization of artists. To capture the productive quality of that
mobility Maurizio Lazzarato's theory of immaterial labor is indispensable. His
critique of working conditions in the cultural field of transnational late
capitalism sheds new light on the "Bilbao effect". In this case study I
examine the nexus deindustrialization-cultural politics-terrorism, some
related artistic traditions (Oteiza) and the decentralized 'new' art
institutions, such as Consonni, the producer of Andrea Fraser's Bilbao pieces.
The fact that Frasers "El Museo" remains unrealized highlights the necessity
of a new theory of institution-critical practice that gives evidence to the
transnational horizon. Some thoughts on Asier Mendizabal's contribution to the
10th anniversary of the Guggenheim Museum Bilbao seek possible ways of
decanonization and temporalization of the "Bilabo effect". What I expected to
be a re-politicization of institutional critique proved to be a…
Advisors/Committee Members: [email protected] (contact), w (gender), Prof. Dr. Gregor Stemmrich (firstReferee), Prof. Dr. Tom Holert (furtherReferee).
Subjects/Keywords: Institutional Critique; Transnational; criticality; Guggenheim; Bilbao; 700 Künste und Unterhaltung
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Moritz, J. (2013). Blurring the boundaries? Institutional Critique in Spaces of Conflict. (Thesis). Freie Universität Berlin. Retrieved from https://refubium.fu-berlin.de/handle/fub188/11582
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Moritz, Julia. “Blurring the boundaries? Institutional Critique in Spaces of Conflict.” 2013. Thesis, Freie Universität Berlin. Accessed February 27, 2021.
https://refubium.fu-berlin.de/handle/fub188/11582.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Moritz, Julia. “Blurring the boundaries? Institutional Critique in Spaces of Conflict.” 2013. Web. 27 Feb 2021.
Vancouver:
Moritz J. Blurring the boundaries? Institutional Critique in Spaces of Conflict. [Internet] [Thesis]. Freie Universität Berlin; 2013. [cited 2021 Feb 27].
Available from: https://refubium.fu-berlin.de/handle/fub188/11582.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Moritz J. Blurring the boundaries? Institutional Critique in Spaces of Conflict. [Thesis]. Freie Universität Berlin; 2013. Available from: https://refubium.fu-berlin.de/handle/fub188/11582
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Cambridge
26.
Adams, Joel.
Dynamic Criticality Analysis of Industrial Assets and System.
Degree: PhD, 2019, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/295216
► The need to utilize maintenance resources both effectively and efficiently has never been greater due to increasing budgetary constraints for maintenance activities within organisations. Maintenance…
(more)
▼ The need to utilize maintenance resources both effectively and efficiently has never been greater due to increasing budgetary constraints for maintenance activities within organisations. Maintenance prioritisation becomes essential to ensure that resources are spent on those assets where it does the most good. As a result, one of the vital tenets of maintenance and assets management is the belief that it is important for organisations to identify their “critical” assets. Criticality analysis, a well-recognised method for providing a systematic basis for deciding what assets should have priority within a maintenance management process, is used for this purpose. Evidence from industrial practices reveals that although asset criticality changes over time due to dynamic operating environments, current criticality analysis techniques both from literature and practice cannot deal with this dynamicity. Understanding the dynamic nature of asset criticality is therefore key to ensure maintenance plans are aligned to business needs. Insights from dynamicity of criticality will give decision makers the ability to better withstand, respond and recover from asset performance events, thereby improving the resilience of the asset portfolio. This thesis focusses on 1) understanding the dynamic nature of asset criticality, i.e. what factors influence changes in criticality; how and when criticality changes; how change in criticality is monitored and updated, and 2) the impact of dynamicity on maintenance prioritisation decisions, i.e. when and how does the change in criticality matter to the effectiveness of the maintenance decision. A methodology and its associated models, which can be used to understand and exploit the dynamicity of assets in order to optimise prioritisation decisions, is presented. A Scenario-based Weighted Sum Method (SWSM) model is developed in this thesis to characterize both asset impact measure and criteria weights as dynamic variables that are dependent on the states of influence factors. Multi state importance measure (MSS-IM) is used to describe assets whose performance and impact measures are not simply binary (working; failed). Questionnaires, interview and surveys are developed based on a Soft Systems Methodology (SSM) approach to elicit expert knowledge for the identification of stakeholders’ requirements, factors influencing criticality and development of a system dynamic relationship between factors/criteria. Finally, a modified integer programming optimisation model is used to assess the impact of dynamic criticality on prioritisation decisions.
From a detailed case study of a waste water company, an analysis of the overall methodology identified the benefit of understanding and exploiting the dynamicity of asset criticality for maintenance prioritisation. The methodology combined with the models provides a practical procedure for industrialists to quantitatively assess the dynamics of asset criticality and to respond where appropriate. It enabled a sensitivity and volatility analysis which…
Subjects/Keywords: Criticality Analysis; Assets and Systems; Maintenance; Reliabilty; Dynamic Analysis
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Adams, J. (2019). Dynamic Criticality Analysis of Industrial Assets and System. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/295216
Chicago Manual of Style (16th Edition):
Adams, Joel. “Dynamic Criticality Analysis of Industrial Assets and System.” 2019. Doctoral Dissertation, University of Cambridge. Accessed February 27, 2021.
https://www.repository.cam.ac.uk/handle/1810/295216.
MLA Handbook (7th Edition):
Adams, Joel. “Dynamic Criticality Analysis of Industrial Assets and System.” 2019. Web. 27 Feb 2021.
Vancouver:
Adams J. Dynamic Criticality Analysis of Industrial Assets and System. [Internet] [Doctoral dissertation]. University of Cambridge; 2019. [cited 2021 Feb 27].
Available from: https://www.repository.cam.ac.uk/handle/1810/295216.
Council of Science Editors:
Adams J. Dynamic Criticality Analysis of Industrial Assets and System. [Doctoral Dissertation]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/295216

Boston University
27.
Goldfield, Anna Elizabeth.
The role of physiology and behavior in the replacement of Neanderthals by anatomically modern humans in Europe.
Degree: PhD, Archaeology, 2017, Boston University
URL: http://hdl.handle.net/2144/27078
► This dissertation comprises three articles that propose explanations for the eventual extinction of Neanderthals in Europe after a period of several thousand years of coexistence…
(more)
▼ This dissertation comprises three articles that propose explanations for the eventual extinction of Neanderthals in Europe after a period of several thousand years of coexistence with anatomically modern humans (AMH). I propose that bioenergetic differences between Neanderthals and AMH favored the persistence of AMH. This difference in energetic efficiency was augmented by any behavior that was advantageous to AMH. Consequently, such behaviors directly impacted the rate of Neanderthal extinction.
The first article proposes a mathematical model that reconstructs Neanderthal and AMH energetic budgets to predict how using fire for cooking might have affected the success of each species. I first use the model to establish that energetic differences alone result in Neanderthal extinction when Neanderthals and AMH occupy the same landscape. I then establish that cooking meat increases its caloric value, and incorporate that parameter into the model. The outcome indicates that differential fire use by Neanderthals and AMH significantly affects the rate of Neanderthal extinction.
The second article analyzes the evidence for marrow and bone grease extraction from reindeer carcasses by Neanderthals and AMH during cold climate phases. I analyze two assemblages produced by Neanderthals and three produced by AMH to determine how each group exploited these crucial nutritional resources. Results indicate that marrow processing intensity correlates with site function rather than with human species while bone grease may have been more intensively processed by AMH.
In the third article, I integrate these studies within a new theoretical framework combining self-organizing criticality (SOC) and resilience thinking (RT). I explore Neanderthal extinction across multiple scales. SOC explores how interactions at the scale of the individual can combine to cause events such as an extinction. RT provides a systems-level framework for understanding how patterns of change among Neanderthals, AMH, prey populations, and the landscapes they inhabit may lead to instability and collapse. I identify the arrival of AMH into a landscape occupied by Neanderthals as a threshold point that set the process of Neanderthal demise in motion. I then use SOC and RT together to explain Neanderthal extinction as a slow and patchy process, rather than a sudden extinction.
Subjects/Keywords: Archaeology; Human behavior; Human evolution; Neanderthal; Self-organizing criticality; Zooarchaeology
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Goldfield, A. E. (2017). The role of physiology and behavior in the replacement of Neanderthals by anatomically modern humans in Europe. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/27078
Chicago Manual of Style (16th Edition):
Goldfield, Anna Elizabeth. “The role of physiology and behavior in the replacement of Neanderthals by anatomically modern humans in Europe.” 2017. Doctoral Dissertation, Boston University. Accessed February 27, 2021.
http://hdl.handle.net/2144/27078.
MLA Handbook (7th Edition):
Goldfield, Anna Elizabeth. “The role of physiology and behavior in the replacement of Neanderthals by anatomically modern humans in Europe.” 2017. Web. 27 Feb 2021.
Vancouver:
Goldfield AE. The role of physiology and behavior in the replacement of Neanderthals by anatomically modern humans in Europe. [Internet] [Doctoral dissertation]. Boston University; 2017. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2144/27078.
Council of Science Editors:
Goldfield AE. The role of physiology and behavior in the replacement of Neanderthals by anatomically modern humans in Europe. [Doctoral Dissertation]. Boston University; 2017. Available from: http://hdl.handle.net/2144/27078

University of Colorado
28.
Larremore, Daniel Benjamin.
Critical Dynamics in Complex Excitable Networks.
Degree: PhD, Applied Mathematics, 2012, University of Colorado
URL: https://scholar.colorado.edu/appm_gradetds/28
► We study the effect of network structure on the dynamical response of networks of coupled discrete-state excitable elements to two distinct types of stimulus.…
(more)
▼ We study the effect of network structure on the dynamical response of networks of coupled discrete-state excitable elements to two distinct types of stimulus. First, we consider networks which are stochastically stimulated by an external source. Such systems have been used as toy models for the dynamics of some human sensory neuronal networks and neuron cultures. The collective dynamics of such systems depends on the topology of the connections in the network. Here we develop a general theoretical approach to study the effects of network topology on dynamic range, which quantifies the range of stimulus intensities resulting in distinguishable network responses. We find that the largest eigenvalue of the weighted network adjacency matrix governs the network dynamic range. Specifically, a largest eigenvalue equal to one corresponds to a critical regime with maximum dynamic range. This result appears to hold for random, all-to-all, and scale free topologies, and is robust to the inclusion of time delays and refractory states. We gain deeper insight into the effects of network topology using a nonlinear analysis in terms of additional spectral properties of the adjacency matrix. We find that homogeneous networks can reach a higher dynamic range than those with heterogeneous topology. Second, we consider networks stimulated only once at a single node, with dynamics allowed to evolve without additional stimulus. Each realization of such a process will create a cascade of activity of varying duration and size. We analyze the distributions of cascade size and duration in complex networks resulting from a single nodal excitation, finding that when the largest eigenvalue is equal to one, so-called ``critical avalanches'' are power-law distributed in size, with exponent -3/2, and power-law distributed in duration, with exponent -2. We employ techniques from dynamical systems to recover the differences among avalanches started at different network nodes, also deriving distributions for avalanches in subcritical and supercritical regimes.
Advisors/Committee Members: Juan G. Restrepo, James D. Meiss, Keith Julien.
Subjects/Keywords: avalanche; complex network; criticality; neural network; nonlinear dynamics; Applied Mathematics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Larremore, D. B. (2012). Critical Dynamics in Complex Excitable Networks. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/appm_gradetds/28
Chicago Manual of Style (16th Edition):
Larremore, Daniel Benjamin. “Critical Dynamics in Complex Excitable Networks.” 2012. Doctoral Dissertation, University of Colorado. Accessed February 27, 2021.
https://scholar.colorado.edu/appm_gradetds/28.
MLA Handbook (7th Edition):
Larremore, Daniel Benjamin. “Critical Dynamics in Complex Excitable Networks.” 2012. Web. 27 Feb 2021.
Vancouver:
Larremore DB. Critical Dynamics in Complex Excitable Networks. [Internet] [Doctoral dissertation]. University of Colorado; 2012. [cited 2021 Feb 27].
Available from: https://scholar.colorado.edu/appm_gradetds/28.
Council of Science Editors:
Larremore DB. Critical Dynamics in Complex Excitable Networks. [Doctoral Dissertation]. University of Colorado; 2012. Available from: https://scholar.colorado.edu/appm_gradetds/28
29.
Bi, Zhen.
Physical Properties and Experimental Platform of Symmetry Protected Topological Phases.
Degree: 2017, University of California – eScholarship, University of California
URL: http://www.escholarship.org/uc/item/37q1k2rj
► As condensed matter theorists, we always try to seek new quantum phases of matter that are not possible in classical physics. In this dissertation, I…
(more)
▼ As condensed matter theorists, we always try to seek new quantum phases of matter that are not possible in classical physics. In this dissertation, I discussed a new type of quantum disordered phases known as symmetry protected topological (SPT) phases, which is a generalization of the topological insulator to interacting fermion or boson/spin systems with various symmetries. In the first part of this thesis, a nonlinear σ-model (NLσM) field theory is introduced as a powerful tool to describe the properties of the bosonic SPT phases. Secondly, we want to answer the question of how to detect the SPT states from their bulk properties. Introducing gauge fields was shown to be an effective theoretical tool to study bulk properties of SPT phases. Furthermore, we investigated anyon and loop statistics of gauged SPT states in the framework of NLσM. We also designed a new numerical probe, so-called strange correlator, which can distinguish SPT states from trivial states based on the bulk wavefunction on a closed manifold. Thirdly, several aspects of surface states of SPT phases are discussed. 1. A surface phase transition of 3d topological insulator is studied through a new controlled expansion method with the help of the recently discovered fermion-vortex duality. 2. A new strongly interacting conformal field theory on the surface of 3d bosonic SPT state is also found by a controlled renormalization group calculation. 3. we made a connection between the surface of SPT phase and the Lieb-Schultz-Mattis (LSM) theorem, which enables us to identity the SU(N) and SO(N) spin systems that permit a featureless ground state in 2d and 3d. Finally, we proposed the first experimental realization of bosonic SPT state in dimension higher than 1. We established a general relation between interacting multi-layer fermionic SPTs and bosonic SPT with the same symmetry, which motivates a proposal of realizing 2+1d bosonic SPT phase in bilayer graphene system.
Subjects/Keywords: Condensed matter physics; Quantum Criticality; Quantum Field Theory; Topological Phases
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bi, Z. (2017). Physical Properties and Experimental Platform of Symmetry Protected Topological Phases. (Thesis). University of California – eScholarship, University of California. Retrieved from http://www.escholarship.org/uc/item/37q1k2rj
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Bi, Zhen. “Physical Properties and Experimental Platform of Symmetry Protected Topological Phases.” 2017. Thesis, University of California – eScholarship, University of California. Accessed February 27, 2021.
http://www.escholarship.org/uc/item/37q1k2rj.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Bi, Zhen. “Physical Properties and Experimental Platform of Symmetry Protected Topological Phases.” 2017. Web. 27 Feb 2021.
Vancouver:
Bi Z. Physical Properties and Experimental Platform of Symmetry Protected Topological Phases. [Internet] [Thesis]. University of California – eScholarship, University of California; 2017. [cited 2021 Feb 27].
Available from: http://www.escholarship.org/uc/item/37q1k2rj.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Bi Z. Physical Properties and Experimental Platform of Symmetry Protected Topological Phases. [Thesis]. University of California – eScholarship, University of California; 2017. Available from: http://www.escholarship.org/uc/item/37q1k2rj
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Robert Gordon University
30.
Buwert, Peter.
Ethical design : a foundation for visual communication.
Degree: PhD, 2016, Robert Gordon University
URL: http://hdl.handle.net/10059/1577
► The central original contribution to knowledge proposed by this thesis is the setting forth of a conceptualisation of ethical theory specifically in relation to design,…
(more)
▼ The central original contribution to knowledge proposed by this thesis is the setting forth of a conceptualisation of ethical theory specifically in relation to design, with a focus on visual communication design. Building on earlier work by design theorist Clive Dilnot in the area of design ethics and on philosopher Giorgio Agamben’s formulation of the philosophical concept of potentiality, a way of thinking about the relationship between design and ethics is proposed which concludes that design is in fact always inherently ethical. However, this conception of ethical design purposefully leaves questions of the qualification of good and bad unresolved, stating only that the ethical is the prerequisite condition in which both good and bad become possibilities. Design’s significantly unethical capability to suppress and anaesthetise individuals’ ethical experience is highlighted through a proposal of a process of an/aesth/ethics. Observation of the relationship between design and ethics in the real world through a series of interviews demonstrates something of the complexity of design’s relationship with ethics and the diverse range of positions, beliefs, attitudes and paradoxes abounding within the design profession when it comes to addressing the question of “good” design practice. Six “sites” of ethics within contemporary design discourse are introduced and discussed. The ethicality of design practices in relation to these sites are then analysed through the lens of the proposed ethical framework: identifying strengths, weaknesses and potentials within these observed strategies. The way of thinking about ethical design proposed here demonstrates potential in contributing to designers’ ability to critically consider the ethicality of their own practices. From this foundation they may be better equipped to begin addressing the question of the qualification of the “goodness” of design. In conclusion, proposals are made for how this framework could be practically developed and used to support and encourage ethical design in the real world.
Subjects/Keywords: 741.6; Aesthetics; An/Aesth/Ethics; Criticality; Ethics; Graphic design; Potentiality
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APA (6th Edition):
Buwert, P. (2016). Ethical design : a foundation for visual communication. (Doctoral Dissertation). Robert Gordon University. Retrieved from http://hdl.handle.net/10059/1577
Chicago Manual of Style (16th Edition):
Buwert, Peter. “Ethical design : a foundation for visual communication.” 2016. Doctoral Dissertation, Robert Gordon University. Accessed February 27, 2021.
http://hdl.handle.net/10059/1577.
MLA Handbook (7th Edition):
Buwert, Peter. “Ethical design : a foundation for visual communication.” 2016. Web. 27 Feb 2021.
Vancouver:
Buwert P. Ethical design : a foundation for visual communication. [Internet] [Doctoral dissertation]. Robert Gordon University; 2016. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10059/1577.
Council of Science Editors:
Buwert P. Ethical design : a foundation for visual communication. [Doctoral Dissertation]. Robert Gordon University; 2016. Available from: http://hdl.handle.net/10059/1577
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