subject:(EMI)

The Ohio State University

1. Narayanasamy, Balaji. Impedance Mismatching Based Design of Passive and Active EMI Filters for Power Converters.

Degree: MS, Electrical and Computer Engineering, 2016, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1461252861

► This work is composed of two main parts. The first part includes the development of a tool which can aid a designer to get an… (more)

Subjects/Keywords: Electrical Engineering; EMI Filter, Software, Passive EMI Filter, Active EMI filter, EMI modeling

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APA (6^th Edition):

Narayanasamy, B. (2016). Impedance Mismatching Based Design of Passive and Active EMI Filters for Power Converters. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1461252861

Chicago Manual of Style (16^th Edition):

Narayanasamy, Balaji. “Impedance Mismatching Based Design of Passive and Active EMI Filters for Power Converters.” 2016. Masters Thesis, The Ohio State University. Accessed December 06, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461252861.

MLA Handbook (7^th Edition):

Narayanasamy, Balaji. “Impedance Mismatching Based Design of Passive and Active EMI Filters for Power Converters.” 2016. Web. 06 Dec 2019.

Vancouver:

Narayanasamy B. Impedance Mismatching Based Design of Passive and Active EMI Filters for Power Converters. [Internet] [Masters thesis]. The Ohio State University; 2016. [cited 2019 Dec 06]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1461252861.

Council of Science Editors:

Narayanasamy B. Impedance Mismatching Based Design of Passive and Active EMI Filters for Power Converters. [Masters Thesis]. The Ohio State University; 2016. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1461252861

University of California – Santa Cruz

2. Gorman, Daphne Irene. DEMIS: Dynamic EMI Shifting.

Degree: Computer Engineering, 2018, University of California – Santa Cruz

URL: http://www.escholarship.org/uc/item/7k25146x

► Processors emit non-trivial amounts of electromagnetic radiation, creating interference at frequencies that are used by wireless communication technologies such as cellular, WiFi, and Bluetoooth. I… (more)

▼ Processors emit non-trivial amounts of electromagnetic radiation, creating interference at frequencies that are used by wireless communication technologies such as cellular, WiFi, and Bluetoooth. I introduce the problem of in-band radio frequency interference as a form of electromagnetic interference (EMI) to the computer architecture community as a technical challenge to be addressed.My research is the first to provide insights in the new area of dynamically shifting the EMI generated by a processor by evaluating several platforms and showing the EMI is sensitive to many architectural and compilation parameters through exhaustive measurements. Using these measurements, I propose the new idea of Dynamic EMI Shifting (DEMIS), where architectural and/or compiler changes allow the EMI to be shifted at runtime by a processor. DEMISprocessors dynamically move the interference from frequency bands used during communication to other, unused frequencies. Unlike previous works that leverage static techniques, DEMIS dynamically targets specific frequency bands; the type of techniques used in my research are only possible from an architectural perspective.Despite the fact that the EMI generated by a processor is deterministic, modeling the EMI has proven to be a complex challenge. Moreover, EMI has been shown to be layout dependent (affected by the location of functional units on the chip and the lengths of the wires) and binary dependent (affected by not only the application but also on the compilation options). I propose a Model for EMI from an SoC (MESC), a framework for modeling electromagnetic emissions from a core. MESC takes into account some layout information and the switching activity of a process to model the expected EMI emitted by an SoC. I validate MESC against a core running on an FPGA. My evaluation shows that MESC is able to predict EMI within 95% accuracy across time and across the frequency spectrum, even when using statistical sampling to obtain activity rates.Using the results from MESC, I am able to propose that two different layouts of a single RTL can be leveraged to dynamically shift EMI using my technique EMI Core Hopper (EMI CHopper), a layout-based implementation of DEMIS. EMI CHopper uses a multi-core system, where each core has a different layout but the same RTL, and utilizes thread migration to have an application “hop” between cores to reduce in-band EMI on the fly. Leveraging MESC, EMI CHopper reduces in-band EMI by up to 50%, with only a small performance impact.In order to implement DEMIS for existing systems, I propose utilizing higher level techniques, such as compiler optimizations and clock speeds. My evaluation over real systems shows a decrease of in-band EMI ranging from 3 to 15dB, with less than a 10% average performance impact. A 15dB EMI reduction for LTE can represent a bandwidth improvement of over 3 times for EMI bound communication. The research presented in this thesis offers a new, architectural perspective on a prevalent problem in wireless communications. My findings based…

Subjects/Keywords: Computer engineering; EMI

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APA (6^th Edition):

Gorman, D. I. (2018). DEMIS: Dynamic EMI Shifting. (Thesis). University of California – Santa Cruz. Retrieved from http://www.escholarship.org/uc/item/7k25146x

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gorman, Daphne Irene. “DEMIS: Dynamic EMI Shifting.” 2018. Thesis, University of California – Santa Cruz. Accessed December 06, 2019. http://www.escholarship.org/uc/item/7k25146x.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gorman, Daphne Irene. “DEMIS: Dynamic EMI Shifting.” 2018. Web. 06 Dec 2019.

Vancouver:

Gorman DI. DEMIS: Dynamic EMI Shifting. [Internet] [Thesis]. University of California – Santa Cruz; 2018. [cited 2019 Dec 06]. Available from: http://www.escholarship.org/uc/item/7k25146x.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gorman DI. DEMIS: Dynamic EMI Shifting. [Thesis]. University of California – Santa Cruz; 2018. Available from: http://www.escholarship.org/uc/item/7k25146x

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

3. Hamza, Djilali. Electromagnetic Interference Mitigation in Switched Mode Power Converters Using Digital Sampling Techniques .

Degree: Electrical and Computer Engineering, 2011, Queens University

URL: http://hdl.handle.net/1974/6861

► Increasing power density of switch mode power supplies, by increasing their switching frequency has becoming a challenging obstacle for EMI mitigation. The passive EMI suppression… (more)

Subjects/Keywords: Digital EMI filters; Power converters EMI; DC-DC converters EMI supression; Photovoltaic inverters EMI supression

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APA (6^th Edition):

Hamza, D. (2011). Electromagnetic Interference Mitigation in Switched Mode Power Converters Using Digital Sampling Techniques . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/6861

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hamza, Djilali. “Electromagnetic Interference Mitigation in Switched Mode Power Converters Using Digital Sampling Techniques .” 2011. Thesis, Queens University. Accessed December 06, 2019. http://hdl.handle.net/1974/6861.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hamza, Djilali. “Electromagnetic Interference Mitigation in Switched Mode Power Converters Using Digital Sampling Techniques .” 2011. Web. 06 Dec 2019.

Vancouver:

Hamza D. Electromagnetic Interference Mitigation in Switched Mode Power Converters Using Digital Sampling Techniques . [Internet] [Thesis]. Queens University; 2011. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/1974/6861.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hamza D. Electromagnetic Interference Mitigation in Switched Mode Power Converters Using Digital Sampling Techniques . [Thesis]. Queens University; 2011. Available from: http://hdl.handle.net/1974/6861

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

4. Bayram, Yakup. Hybrid methods for mixed signal circuits subject to on & off - board electromagnetic interference.

Degree: PhD, Electrical Engineering, 2006, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1158616495

► Electromagnetic Interference (EMI) disrupting operations of electronic systems has been studied for decades. Many theoretical techniques and protection mechanisms are proposed to reduce impact of… (more)

▼ Electromagnetic Interference (EMI) disrupting operations of electronic systems has been studied for decades. Many theoretical techniques and protection mechanisms are proposed to reduce impact of EMI on electronic systems. However, a new breed of EMI, Intentional Electromagnetic Interference (IEMI) has recently gained significant attention due to its potential threat to computer networks and communication systems in addition to its potential applications by the military. In this dissertation, we carry out a theoretical and experimental study of mixed signal circuits subject to on & off – board IEMI. Our ultimate goal is to develop a general framework for the EMI analysis of complex systems comprised of cable bundles and Printed Circuit Boards (PCBs) housing mixed signal circuits. In this context, we first consider on–board EMI effects on digital circuits, particularly on an inverter to show the vulnerability of digital devices to RF interference and investigate both system and device level upsets due to adjacent EMI sources on PCBs. Next, we review port analysis techniques to show the applications of the S-Parameter matrix for on–board EMI/EMC analysis. Subsequently, we extent the port analysis method with hybrid S-parameters to account for external field coupling to mixed signal circuits. In other words, we introduce additional hybrid S-parameters that establish a link between the existing board ports and external EMI. Thus, we can handle both on – board and off – board EMI problems concurrently. The new hybrid S-Parameter matrix can be integrated into standard circuit tools such as HSPICE and Advanced Design System (ADS, Agilent Technologies) and also allows for both time domain and Harmonic Balance simulations of non-linear RF-digital components via broadband network characterization. We lastly employ hybrid S-parameters to carry out experimental and theoretical studies on RF power amplifiers, performance evaluation of digital modulation schemes and digital timers to address external EMI on communication systems and automotive electronics. Advisors/Committee Members: Volakis, John (Advisor).

Subjects/Keywords: Electromagnetic Interference; EMI; intentional EMI

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APA (6^th Edition):

Bayram, Y. (2006). Hybrid methods for mixed signal circuits subject to on & off - board electromagnetic interference. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1158616495

Chicago Manual of Style (16^th Edition):

Bayram, Yakup. “Hybrid methods for mixed signal circuits subject to on & off - board electromagnetic interference.” 2006. Doctoral Dissertation, The Ohio State University. Accessed December 06, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1158616495.

MLA Handbook (7^th Edition):

Bayram, Yakup. “Hybrid methods for mixed signal circuits subject to on & off - board electromagnetic interference.” 2006. Web. 06 Dec 2019.

Vancouver:

Bayram Y. Hybrid methods for mixed signal circuits subject to on & off - board electromagnetic interference. [Internet] [Doctoral dissertation]. The Ohio State University; 2006. [cited 2019 Dec 06]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1158616495.

Council of Science Editors:

Bayram Y. Hybrid methods for mixed signal circuits subject to on & off - board electromagnetic interference. [Doctoral Dissertation]. The Ohio State University; 2006. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1158616495

NSYSU

5. Chang, Chia-Ming. The Study of Electromagnetic Shielding for Multiwall Carbon Nanotube Composites.

Degree: PhD, Electro-Optical Engineering, 2008, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0212108-183647

► The shielding effectiveness (SE) of the novel multiwall carbon nanotube (MWCNT) plastic composites is studied for the purpose of the electromagnetic interference (EMI) protection and… (more)

▼ The shielding effectiveness (SE) of the novel multiwall carbon nanotube (MWCNT) plastic composites is studied for the purpose of the electromagnetic interference (EMI) protection and the electromagnetic susceptibility (EMS) improvement in the application of the optical transmitter and receiver modules. The experimental results showed that the liquid crystal polymer (LCP) based MWCNT composites can exhibit a high SE of 38 dB ~ 45 dB within the frequency range of 1 GHz ~ 3 GHz. The shielding capability was demonstrated by examining the electromagnetic susceptibility performance of the optical transmitter and receiver modules, which were packaged by the MWCNT-LCP composites. The EMS performance was evaluated by eye diagram and bit-error-rate test in a 2.5 Gbps lightwave transmission system. The results showed that the MWCNT-LCP composite packaged modules with more weight percentage of the MWCNTs can exhibit a higher SE, and hence showed effective EMS performance, a better mask margin, and a lower power penalty. A novel polyimide (PI) plastic consisting of finely ionic liquid (IL) dispersed MWCNTs was also demonstrated to have high SE under a lower MWCNT loading. The experimental results showed that the IL dispersed MWCNT-PI composite can exhibit a high SE of 40 dB ~ 46 dB within the frequency range of 1 GHz ~ 3 GHz. By comparison, the composite fabricated by non-dispersed process required a higher loading of MWCNTs than the dispersed one. To understand the detailed intermolecular forces among MWCNTs, the dispersion mechanism of the MWCNTs is studied qualitatively. The aggregation of MWCNTs is from van der Waals forces among MWCNTs, and it can be dispersed by using IL dispersant. This is due to the predominant cation- Advisors/Committee Members: Ken-Huang Lin (chair), Mei-Ying Chang (chair), Tsong-Sheng Lay (chair), Jiang-Jen Lin (chair), Tzong-Lin Wu (chair), Hung-Chun Chang (chair), Way-Seen Wang (chair), Wood-Hi Cheng (committee member), Wern-Shiarng Jou (chair).

Subjects/Keywords: Carbon Nanotube; Shielding Effectiveness; EMI; EMS

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APA (6^th Edition):

Chang, C. (2008). The Study of Electromagnetic Shielding for Multiwall Carbon Nanotube Composites. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0212108-183647

Chicago Manual of Style (16^th Edition):

Chang, Chia-Ming. “The Study of Electromagnetic Shielding for Multiwall Carbon Nanotube Composites.” 2008. Doctoral Dissertation, NSYSU. Accessed December 06, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0212108-183647.

MLA Handbook (7^th Edition):

Chang, Chia-Ming. “The Study of Electromagnetic Shielding for Multiwall Carbon Nanotube Composites.” 2008. Web. 06 Dec 2019.

Vancouver:

Chang C. The Study of Electromagnetic Shielding for Multiwall Carbon Nanotube Composites. [Internet] [Doctoral dissertation]. NSYSU; 2008. [cited 2019 Dec 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0212108-183647.

Council of Science Editors:

Chang C. The Study of Electromagnetic Shielding for Multiwall Carbon Nanotube Composites. [Doctoral Dissertation]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0212108-183647

University of Exeter

6. King, Michael John. An exploratory investigation into content teacher views on English as a medium of instruction policy enactment in the UAE federal tertiary sector.

Degree: Thesis (EdD), 2014, University of Exeter

URL: http://hdl.handle.net/10871/17359

► This exploratory study into content teacher views on English as the medium of instruction (EMI) in federal tertiary settings in the United Arab Emirates (UAE)… (more)

▼ This exploratory study into content teacher views on English as the medium of instruction (EMI) in federal tertiary settings in the United Arab Emirates (UAE) was conducted to add to the emerging number of EMI studies in the country and the Arabian Gulf. While other UAE studies have canvassed views from two or more stakeholders, this study looked to focus only on teachers. Working within an interpretive paradigm, rich data were sought from a purposive sample of 45 teachers for an open questionnaire and 9 teachers for semi-structured interviews; the interview themes emanating from questionnaire data analysis. The research framework was built on the researcher’s own experiences in the research context, the assumptions that emerged from those experiences and a review of pertinent themes from the literature, which tended to be grounded in critical theory. These concepts were the macro-policy areas of education and language policy, the synthesised analysis of language policy in education and subsequently a review of themes emerging from EMI studies globally, regionally and in the UAE, which led to a focus on the problem areas of language proficiency and appropriate language pedagogy for this specific research context. Findings suggest that although there is some support for EMI among the sample there is also recognition of attendant problems with the policy caused in the main by students’ insufficient language ability for Bachelor’s study in English and question marks over the need to aspire to native speaker proficiency in a society where various Englishes as a lingua franca are used between citizens who do not use English as their mother tongue. These causes lead students and teachers to enact policy to create learning opportunities. Enactments include skills avoidance, simplifying materials, reducing content and code-switching into Arabic. The absence of Arabic in the higher education curriculum is also questioned, given evidence that it is relevant for students’ future employment; be it in the public or private sector. Recommendations include that English remain an integral part of the curriculum given its relevance for later employment but that the choice of EMI as the model for learning be reviewed to see if other approaches may be more appropriate. It is also recommended that Arabic be included in the curriculum in some form given its importance for students’ careers. Finally, if EMI remains the chosen linguistic approach, teachers are recommended to continue enacting as part of their professional practice to ensure that their students get some benefit from their relatively challenging study environment.

Subjects/Keywords: 428.0071; EMI; UAE; tertiary education; Arabic

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APA (6^th Edition):

King, M. J. (2014). An exploratory investigation into content teacher views on English as a medium of instruction policy enactment in the UAE federal tertiary sector. (Doctoral Dissertation). University of Exeter. Retrieved from http://hdl.handle.net/10871/17359

Chicago Manual of Style (16^th Edition):

King, Michael John. “An exploratory investigation into content teacher views on English as a medium of instruction policy enactment in the UAE federal tertiary sector.” 2014. Doctoral Dissertation, University of Exeter. Accessed December 06, 2019. http://hdl.handle.net/10871/17359.

MLA Handbook (7^th Edition):

King, Michael John. “An exploratory investigation into content teacher views on English as a medium of instruction policy enactment in the UAE federal tertiary sector.” 2014. Web. 06 Dec 2019.

Vancouver:

King MJ. An exploratory investigation into content teacher views on English as a medium of instruction policy enactment in the UAE federal tertiary sector. [Internet] [Doctoral dissertation]. University of Exeter; 2014. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/10871/17359.

Council of Science Editors:

King MJ. An exploratory investigation into content teacher views on English as a medium of instruction policy enactment in the UAE federal tertiary sector. [Doctoral Dissertation]. University of Exeter; 2014. Available from: http://hdl.handle.net/10871/17359

7. Bengtsson, Mikael. A clock driver with reduced EMI.

Degree: The Institute of Technology, 2014, Linköping UniversityLinköping University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105673

► A clock driver that works on the principle of charging and discharging the clock network in a VLSI circuit in two steps is investigated… (more)

Subjects/Keywords: low-power; clock driver; low EMI

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APA (6^th Edition):

Bengtsson, M. (2014). A clock driver with reduced EMI. (Thesis). Linköping UniversityLinköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105673

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bengtsson, Mikael. “A clock driver with reduced EMI.” 2014. Thesis, Linköping UniversityLinköping University. Accessed December 06, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105673.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bengtsson, Mikael. “A clock driver with reduced EMI.” 2014. Web. 06 Dec 2019.

Vancouver:

Bengtsson M. A clock driver with reduced EMI. [Internet] [Thesis]. Linköping UniversityLinköping University; 2014. [cited 2019 Dec 06]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105673.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bengtsson M. A clock driver with reduced EMI. [Thesis]. Linköping UniversityLinköping University; 2014. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105673

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université Catholique de Louvain

8. Lerner, France. Matière des déplacements des états de mort imminente (e-motion, création, réparation).

Degree: 2016, Université Catholique de Louvain

URL: http://hdl.handle.net/2078.1/174660

►

My hypothesis has developed from a protocol in experimental sciences, hybridized practices: oral testimony and graphic representations made blindly of fifteen near-death experiencers. My thesis… (more)

▼

My hypothesis has developed from a protocol in experimental sciences, hybridized practices: oral testimony and graphic representations made blindly of fifteen near-death experiencers. My thesis aims to show that transversal regards between Arts and Science could expand the field of observation of Near-death experiences studies (Nde). My artistic and phenomenological qualitative study has therefore set out modalities to organize the visibility of the interoceptive visuo-motor phenomena of these experiences. Notably, the exhibition of mixed eidetic representations (graphic, verbal) could facilitate the spatio-temporal understanding of Nde spaces (shapes, textures) by reporting their complexities in a more integrative way. This visual descriptive phenomenology of a new kind highlight through graphics datas the appearance of the visual unconscious spaces (retentional, semi-phenomena, phenomenal), while indulging the examination of the preverbal affective and emotional components that occur within this diversity of spaces as kinaesthetic "bodily felt sense and impressions of being”. Our goal through these graphic datas was to overcome the ineffability of the experience by drawing a topology of these spaces that parallely would enabled us to draft a typology of the emotional and affective correlates related to subjective dynamics that are occurring within these spaces. These hodological itinerary mapped out by the experiencer’s set of representations suggest that certain physiological locations in the retina are likely to be involved in the generation of these "bodily felt sense and impressions of being" these patient’s affects are not yet taking into account by conventional Nde verbal scales of validation in use. Prospectively, these alternative maps based on experiencer’s representations could be used to create a visual Nde scale of validation .

(ART - Art et sciences de l'art) – UCL, 2016

Advisors/Committee Members: UCL - SSH/ISP - Institut supérieur de philosophie, UCL - Faculté de philosophie, arts et lettres, Botbol-Baum, Mylène, Laureys, Steven, Leclercq, Pierre, Benrajeb, Samia, Arnaud, Jean, Goosse, Bruno, Streitberger, Alexander.

Subjects/Keywords: NDE; EMI; Expérienceurs; Espace rétinoide; Biophotons

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APA (6^th Edition):

Lerner, F. (2016). Matière des déplacements des états de mort imminente (e-motion, création, réparation). (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/174660

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lerner, France. “Matière des déplacements des états de mort imminente (e-motion, création, réparation).” 2016. Thesis, Université Catholique de Louvain. Accessed December 06, 2019. http://hdl.handle.net/2078.1/174660.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lerner, France. “Matière des déplacements des états de mort imminente (e-motion, création, réparation).” 2016. Web. 06 Dec 2019.

Vancouver:

Lerner F. Matière des déplacements des états de mort imminente (e-motion, création, réparation). [Internet] [Thesis]. Université Catholique de Louvain; 2016. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/2078.1/174660.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lerner F. Matière des déplacements des états de mort imminente (e-motion, création, réparation). [Thesis]. Université Catholique de Louvain; 2016. Available from: http://hdl.handle.net/2078.1/174660

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

9. Wang, Zijian. Conducted EMI Noise Prediction and Filter Design Optimization.

Degree: PhD, Electrical and Computer Engineering, 2016, Virginia Tech

URL: http://hdl.handle.net/10919/73166

► Power factor correction (PFC) converter is a species of switching mode power supply (SMPS) which is widely used in offline frond-end converter for the distributed… (more)

▼ Power factor correction (PFC) converter is a species of switching mode power supply (SMPS) which is widely used in offline frond-end converter for the distributed power systems to reduce the grid harmonic distortion. With the fast development of information technology and multi-media systems, high frequency PFC power supplies for servers, desktops, laptops and flat-panel TVs, etc. are required for more efficient power delivery within limited spaces. Therefore the critical conduction mode (CRM) PFC converter has been becoming more and more popular for these information technology applications due to its advantages in inherent zero-voltage soft switching (ZVS) and negligible diode reverse recovery. With the emerging of the high voltage GaN devices, the goal of achieving soft switching for high frequency PFC converters is the top priority and the trend of adopting the CRM PFC converter is becoming clearer. However, there is the stringent electromagnetic interference (EMI) regulation worldwide. For the CRM PFC converter, there are several challenges on meeting the EMI standards. First, for the CRM PFC converter, the switching frequency is variable during the half line cycle and has very wide range dependent on the AC line RMS voltage and the load, which makes it unlike the traditional constant-frequency PFC converter and therefore the knowledge and experience of the EMI characteristics for the traditional constant-frequency PFC converter cannot be directly applied to the CRM PFC converter. Second, for the CRM PFC converter, the switching frequency is also dependent on the inductance of the boost inductor. It means the EMI spectrum of the CRM PFC converter is tightly related the boost inductor selection during the design of the PFC power stage. Therefore, unlike the traditional constant-frequency PFC converter, the selection of the boost inductor is also part of the EMI filter design process and EMI filter optimization should begin at the same time when the power stage design starts. Third, since the EMI filter optimization needs to begin before the proto-type of the CRM PFC converter is completed, the traditional EMI-measurement based EMI filter design will become much more complex and time-consuming if it is applied to the CRM PFC converter. Therefore, a new methodology must be developed to evaluate the EMI performance of the CRM PFC converter, help to simplify the process of the EMI filter design and achieve the EMI filter optimization. To overcome these challenges, a novel mathematical analysis method for variable frequency PFC converter is thus proposed in this dissertation. Based on the mathematical analysis, the quasi-peak EMI noise, which is specifically required in most EMI regulation standards, is investigated and accurately predicted for the first time. A complete approximate model is derived to predict the quasi-peak DM EMI noise for the CRM PFC converter. Experiments are carried out to verify the validity of the prediction. Based on the DM EMI noise prediction, worst case analysis is carried out and the… Advisors/Committee Members: Lee, Fred C. (committeechair), Wang, Shuo (committee member), De La Reelopez, Jaime (committee member), Lesko, John J. (committee member), Li, Qiang (committee member).

Subjects/Keywords: electromagnetic interference; power factor correction; conducted EMI noise prediction; EMI filter design optimization

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APA (6^th Edition):

Wang, Z. (2016). Conducted EMI Noise Prediction and Filter Design Optimization. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/73166

Chicago Manual of Style (16^th Edition):

Wang, Zijian. “Conducted EMI Noise Prediction and Filter Design Optimization.” 2016. Doctoral Dissertation, Virginia Tech. Accessed December 06, 2019. http://hdl.handle.net/10919/73166.

MLA Handbook (7^th Edition):

Wang, Zijian. “Conducted EMI Noise Prediction and Filter Design Optimization.” 2016. Web. 06 Dec 2019.

Vancouver:

Wang Z. Conducted EMI Noise Prediction and Filter Design Optimization. [Internet] [Doctoral dissertation]. Virginia Tech; 2016. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/10919/73166.

Council of Science Editors:

Wang Z. Conducted EMI Noise Prediction and Filter Design Optimization. [Doctoral Dissertation]. Virginia Tech; 2016. Available from: http://hdl.handle.net/10919/73166

Grand Valley State University

10. Häring, Dimitri. EMC Performance Evaluation of Various PCB Designs through Simulation and Measurements.

Degree: 2019, Grand Valley State University

URL: https://scholarworks.gvsu.edu/theses/954

► The applied research presented in this thesis is intended to deepen the understanding of various concepts related to PCB design with respect to EMC and… (more)

▼ The applied research presented in this thesis is intended to deepen the understanding of various concepts related to PCB design with respect to EMC and RF performance. The first topic addressed is embedded capacitance of a PCB. The work includes decoupling capacitors and their placement relative to the IC in a combination of three different PCB stack-ups. The evaluation is performed in the frequency domain and time domain. The next topic discussed is the EMC/ EMI filters which are essential measurements to protect a device or subsystem from EMI. The circuit's load is usually unknown. A generic filter design is built, which allows the placement of various PCB structures to evaluate filters under different load and source impedance. To convert voltage effciently, SMPS buck converters are widely used. To suppress EMI, various counter measures for differential mode, and common mode are discussed and measured with a conducted emission (CE) voltage method (V) to evaluate their performance. The designed snubber is evaluated in the time domain by measuring the ringing and the suppressed target frequency content. The results of the above four topics are utilized in a VHF auto tuner design. The results of the embedded capacitance frequency domain evaluation show that the two evaluated 6-layer designs outperform the 4-layer design. Additionally, the 6-layer design with far spaced power plane outperforms the 6-layer version 3 design with not-far spaced power plane referenced to the top signal layer. Grouped capacitors outperform the not grouped capacitors. For not grouped capacitors on a 6-layer design, the evaluation in time and frequency domain shows that the 6-layer designs are particularly enhancing higher frequency content suppression regardless if the capacitors are grouped or not. The filter evaluation showed that for a 2nd order filter the capacitor placed close to the high impedance side shows increased performance. The 3rd order structures π and T show that there is no significant performance decrease if the filter is mounted one way or another. The correlation of the measured and simulated data showed that the ideal case simulations are valid for the ideal behavior of the filter. Due to the bandwidth of a π filter, large components with lower self-resonance frequencies are favorable. In real-world applications, a π is favorable because there never is just an LC or CL structure due to bulk or decoupling capacitors. The SMPS evaluation showed that the snubber could be designed with Adamczyk's and Spence's approach. The tested EMC filter structures showed clearly that a single component shows an impact on the CE (V) measurement and can be identified by its self-resonant frequency. The filter can be designed for different target frequency ranges, and depending on the design, it will show better or worse results. The shield was added, and the measured interference dropped mainly to the ambient level. On the VHF auto tuner each evaluated topic is discussed and shows that around 50% of the used components are related to EMC.…

Subjects/Keywords: Embedded Capacitance; EMC/EMI Filters; SMPS EMI; Electrical and Computer Engineering; Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Häring, D. (2019). EMC Performance Evaluation of Various PCB Designs through Simulation and Measurements. (Thesis). Grand Valley State University. Retrieved from https://scholarworks.gvsu.edu/theses/954

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Häring, Dimitri. “EMC Performance Evaluation of Various PCB Designs through Simulation and Measurements.” 2019. Thesis, Grand Valley State University. Accessed December 06, 2019. https://scholarworks.gvsu.edu/theses/954.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Häring, Dimitri. “EMC Performance Evaluation of Various PCB Designs through Simulation and Measurements.” 2019. Web. 06 Dec 2019.

Vancouver:

Häring D. EMC Performance Evaluation of Various PCB Designs through Simulation and Measurements. [Internet] [Thesis]. Grand Valley State University; 2019. [cited 2019 Dec 06]. Available from: https://scholarworks.gvsu.edu/theses/954.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Häring D. EMC Performance Evaluation of Various PCB Designs through Simulation and Measurements. [Thesis]. Grand Valley State University; 2019. Available from: https://scholarworks.gvsu.edu/theses/954

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

11. Liu, Qian. Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters.

Degree: PhD, Electrical and Computer Engineering, 2005, Virginia Tech

URL: http://hdl.handle.net/10919/29633

► With the development of power electronics, electromagnetic interference (EMI) and electromagnetic compatibility (EMC) issues have become more and more important for both power converter designers… (more)

▼ With the development of power electronics, electromagnetic interference (EMI) and electromagnetic compatibility (EMC) issues have become more and more important for both power converter designers and customers. This dissertation studies EMI noise emission characterization and modeling in power converters. A modular-terminal-behavioral (MTB) equivalent EMI noise source modeling approach is proposed. This work is the first to systematically develop a 3-terminal EMI noise source model for a switching phase-leg device module. Each module is modeled as pairs of equivalent noise current sources and source impedances. Although the proposed MTB modeling approach applies the linear circuit theory to a semiconductor switching device, which exhibits nonlinear behavior during switching transients, the analysis and experiments show that the nonlinearity has negligible practical effect on the modeling methodology. The validation range of the modeling methodology has been analyzed. One of the differences between the proposed MTB model and the other state-of-the-art models is that the MTB model characterizes and predicts the CM and DM noise simultaneously. The inseparable high-frequency CM and DM noise characteristics contributed by the source impedance and propagation path are analyzed. A comprehensive evaluation of different EMI noise source modeling approaches according to the criteria of accuracy, feasibility and generality has been presented. Results show that the MTB modeling approach is more accurate, feasible and general than other approaches. The modular and terminal characteristics of the MTB noise source model are verified in two more complicated cases. One example is the application of the MTB equivalent source model in a half-bridge AC converter with variable switching conditions. Although the MTB model is derived under a certain operating condition, the models under different conditions can be combined together to predict the EMI noise for the converter with variable switching conditions. Another example is the application of the MTB equivalent source model in multi-phase-leg converters. The EMI noise of a full-bridge converter is predicted based on the MTB equivalent source model of one phase-leg module. The implementation procedures and results for both applications are verified by the experiment. The applicability of the MTB model in different type of converters is discussed. Based on the MTB model, EMI noise management is explored. The parametric study based on the MTB model is demonstrated by selecting DC-link decoupling capacitors for voltage source converter (VSC). The EMI effect of a decoupling capacitor for a device s safe operation is analyzed, and this analysis shows the terminal characteristics of the MTB model. Both the EMI and voltage overshoot are predicted by the MTB model. A completed converter-level EMI model can be derived based on the noise source model and propagation path model. This model makes it possible to optimize the EMI filter design and study the EMI noise interactions between… Advisors/Committee Members: Liu, Yilu (committee member), Lu, Guo-Quan (committee member), van Wyk, Jacobus Daniel (committee member), Boroyevich, Dushan (committeecochair), Wang, Fei Fred (committeecochair).

Subjects/Keywords: EMI Generation; Modular-Terminal-Behavioral (MTB); Electromagnetic Interference (EMI); Conducted EMI; EMI modeling; EMI Source; Common-mode (CM); Differential-mode (DM)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Liu, Q. (2005). Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/29633

Chicago Manual of Style (16^th Edition):

Liu, Qian. “Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters.” 2005. Doctoral Dissertation, Virginia Tech. Accessed December 06, 2019. http://hdl.handle.net/10919/29633.

MLA Handbook (7^th Edition):

Liu, Qian. “Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters.” 2005. Web. 06 Dec 2019.

Vancouver:

Liu Q. Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters. [Internet] [Doctoral dissertation]. Virginia Tech; 2005. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/10919/29633.

Council of Science Editors:

Liu Q. Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters. [Doctoral Dissertation]. Virginia Tech; 2005. Available from: http://hdl.handle.net/10919/29633

University of Vienna

12. Grebenicek, Arthur. Groundwater flow modelling of stream-aquifer interaction in an influent regime using hydrogeophysical constraints.

Degree: 2017, University of Vienna

URL: http://othes.univie.ac.at/47836/

►

Elektromagnetische Induktion (EMI) stellt eine schnelle, nicht-invasive und kostengünstige Methode dar, um eine große Anzahl an räumlich verteilten Daten zu erfassen und dadurch Aussagen über… (more)

▼

Elektromagnetische Induktion (EMI) stellt eine schnelle, nicht-invasive und kostengünstige Methode dar, um eine große Anzahl an räumlich verteilten Daten zu erfassen und dadurch Aussagen über den elektrischen Fluss im Untergrund abzuleiten. Die Austauschraten von Oberflächenwasser und Grundwasser im Flussbett werden oft durch eine Kolmationsschicht bestimmt, die sich durch eine Ansammlung feinkörniger Sedimente in den Porenzwischenräumen bildet. Über einen Zeitraum von mehreren Tagen wurden EMI Messungen in einem Flussbett mit influenten Verhältnissen (losing disconnected stream) durchgeführt. Die dabei gemessene scheinbare elektrische Leitfähigkeit (ECa) des Flussbettes wurde mit parallel durchgeführten Infiltrometermessungen, zur Bestimmung der vertikalen hydraulischen Leitfähigkeit (Kv), korreliert. Ziel der Arbeit war es, eine log-lineare Kv-ECa-Verbindung zu finden und deren Ergebnisse als Cauchy-Randbedingung in ein numerisches Grundwassermodell zu implementieren. Die Regressionsanalyse ergab eine äußerst schwache Korrelation von Kv und ECa, vermutlich zurückzuführen auf methodische Probleme beim Versuchsaufbau der Infiltrometer. Das resultierende Modell, basierend auf der Regressionsanalyse, unterschätzte die Infiltrationsraten des Flusses, die bei früheren Studien bestimmt wurden, um mehr als 2,5 Größenordnungen. Die ECa-Werte wurden daraufhin in Cluster mit variablen maximalen und minimalen Kv-Grenzen unterteilt. Nachdem ein maximaler Kv-Wert gefunden wurde, konnte durch eine schrittweise Anpassung der Werte die untere Kv-Grenze ermittelt und die errechnete Gesamtinfiltrationsrate an die gemessene Abflussrate angeglichen werden. Die errechneten Infiltrationswerte der einzelnen Flussabschnitte wichen teilweise stark von den ermittelten Abflussmengen ab, zeigten jedoch eine generelle Übereinstimmung bei der Bestimmung der Hauptinfiltrationszonen. Der Einsatz von EMI-Messungen zur Bestimmung von Infiltrationsraten, über großflächige Flussabschnitte hinweg, scheint nicht zielführend zu sein. EMI stellt jedoch eine schnelle und einfache Methode dar, um potentielle Hauptinfiltrationszonen zu identifizieren. Diese können mit zeitintensiveren aber zuverlässigeren Methoden, wie der (spektral) induzierten Polarisation (IP), weiter untersucht werden.

Electromagnetic induction (EMI) investigations represent a rapid, non-invasive and inexpensive method to collect spatially dense data for derivation of properties controlling the flow in the shallow subsurface. Stream-aquifer exchange rates are often controlled by a clogging layer, formed by accumulation of fine-grained sediment in the void pore space. EMI measurements were employed, in constant-walking-speed operation along reaches of a losing-disconnected stream during low flow conditions near a bank filtration site, to gain the streambed’s apparent electrical conductivity (ECa) as a measure of its bulk electrical conductance. The objective of this research was to infer infiltration rates by correlating ECa with co-located, punctual streambed vertical hydraulic…

Subjects/Keywords: 38.85 Hydrologie: Allgemeines; 38.86 Grundwasser; EMI / ECa / Kolmationsschicht / influent / Grundwassermodell; EMI / ECa / clogging layer / flow model / losing-disconnected

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Grebenicek, A. (2017). Groundwater flow modelling of stream-aquifer interaction in an influent regime using hydrogeophysical constraints. (Thesis). University of Vienna. Retrieved from http://othes.univie.ac.at/47836/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Grebenicek, Arthur. “Groundwater flow modelling of stream-aquifer interaction in an influent regime using hydrogeophysical constraints.” 2017. Thesis, University of Vienna. Accessed December 06, 2019. http://othes.univie.ac.at/47836/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Grebenicek, Arthur. “Groundwater flow modelling of stream-aquifer interaction in an influent regime using hydrogeophysical constraints.” 2017. Web. 06 Dec 2019.

Vancouver:

Grebenicek A. Groundwater flow modelling of stream-aquifer interaction in an influent regime using hydrogeophysical constraints. [Internet] [Thesis]. University of Vienna; 2017. [cited 2019 Dec 06]. Available from: http://othes.univie.ac.at/47836/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Grebenicek A. Groundwater flow modelling of stream-aquifer interaction in an influent regime using hydrogeophysical constraints. [Thesis]. University of Vienna; 2017. Available from: http://othes.univie.ac.at/47836/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

INP Toulouse

13. Garcia Hallo, Ivan Vladimir. Instrumentation d'essais en vol pour la localisation de décharges électrostatiques sur la surface d'un avion : Flight test instrumentation for the location of electrostatic discharges on the surface of an aircraft.

Degree: Docteur es, Electromagnétisme et Systèmes Haute Fréquence, 2017, INP Toulouse

URL: http://www.theses.fr/2017INPT0007

►

Le chargement électrostatique d’un avion en vol peut mener à des perturbations électromagnétiques sur les systèmes de communication et navigation à bord. Ce phénomène est… (more)

▼

Le chargement électrostatique d’un avion en vol peut mener à des perturbations électromagnétiques sur les systèmes de communication et navigation à bord. Ce phénomène est appelé Precipitation Static (P-Static). Cette thèse vise à développer un outil capable de localiser la source des perturbations pour ainsi réduire le coût et la durée des missions d’investigation spécifiques en compagnie aérienne. Les principaux objectifs sont : •Comprendre les mécanismes de charge et décharge électrique d’un avion en vol. •Développer une instrumentation capable de mesurer les émissions des sources de P-Static et qui soit conforme à une installation sur avion. •Développer une méthode de localisation capable d’estimer la position de la source. Le comportement électrostatique d’un avion en vol a été étudié. Le défi de la mesure temporelle de l’impulsion générée par des décharges sur avion a été relevé à l’aide des antennes VHF, d’une chaine d’amplification à fort gain, de filtres sélectifs, d’un déclenchement de mesure automatique et de l’exploitation de nombreuses mesures. Les retards mesurés entre les impulsions ont été utilisés comme entrée de la méthode inverse de localisation développée. Cette méthode repose sur une base de données de retards, construite par modélisation de la propagation, permettant après comparaison avec la mesure, de déterminer la position de la source. Les tests effectués au laboratoire et sur avion au sol ont montré des résultats prometteurs puisque les zones estimées contenant la source correspondent à une zone réduite sur la surface de l’avion.

The static charging of an aircraft in flight may lead to electrostatic discharges that in turn lead to electromagnetic disturbances on aircraft radio and avionic systems. This phenomenon is called Precipitation Static (P-Static). This thesis aims to develop a tool capable of narrowing down the location of the source of disturbances in order to reduce the cost and duration of specific troubleshooting missions in airlines. The main objectives are : •To understand the electrical charging and discharging dynamics of an aircraft. •To develop an instrumentation capable of measuring the electromagnetic emissions of P-Static sources and that is compliant to aircraft installation constraints. •To develop a location method capable of estimating the position of the source. The electrostatic behaviour of an aircraft has been studied. The challenge in measuring the pulse generated by discharges on an aircraft was achieved by the combination of VHF antennas, a high gain amplifier chain, selective filters, automated triggering and numerous acquisitions. The delays obtained between the three pulses serve as input for the location inverse method developed. This method is based on a database of delays, built using propagation models, allowing after comparison with measurements, to determine the source position. The tests performed in laboratory and on aircraft on ground show promising results as the estimated zones containing the source correspond to a reduced zone on the surface…

Advisors/Committee Members: Raveu, Nathalie (thesis director).

Subjects/Keywords: P-Static; Localisation de Source; Retard Temporel; TDOA; Instrumentation; EMI; P-Static; Source Location; Time Delay; TDOA; Instrumentation; EMI

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Garcia Hallo, I. V. (2017). Instrumentation d'essais en vol pour la localisation de décharges électrostatiques sur la surface d'un avion : Flight test instrumentation for the location of electrostatic discharges on the surface of an aircraft. (Doctoral Dissertation). INP Toulouse. Retrieved from http://www.theses.fr/2017INPT0007

Chicago Manual of Style (16^th Edition):

Garcia Hallo, Ivan Vladimir. “Instrumentation d'essais en vol pour la localisation de décharges électrostatiques sur la surface d'un avion : Flight test instrumentation for the location of electrostatic discharges on the surface of an aircraft.” 2017. Doctoral Dissertation, INP Toulouse. Accessed December 06, 2019. http://www.theses.fr/2017INPT0007.

MLA Handbook (7^th Edition):

Garcia Hallo, Ivan Vladimir. “Instrumentation d'essais en vol pour la localisation de décharges électrostatiques sur la surface d'un avion : Flight test instrumentation for the location of electrostatic discharges on the surface of an aircraft.” 2017. Web. 06 Dec 2019.

Vancouver:

Garcia Hallo IV. Instrumentation d'essais en vol pour la localisation de décharges électrostatiques sur la surface d'un avion : Flight test instrumentation for the location of electrostatic discharges on the surface of an aircraft. [Internet] [Doctoral dissertation]. INP Toulouse; 2017. [cited 2019 Dec 06]. Available from: http://www.theses.fr/2017INPT0007.

Council of Science Editors:

Garcia Hallo IV. Instrumentation d'essais en vol pour la localisation de décharges électrostatiques sur la surface d'un avion : Flight test instrumentation for the location of electrostatic discharges on the surface of an aircraft. [Doctoral Dissertation]. INP Toulouse; 2017. Available from: http://www.theses.fr/2017INPT0007

University of Exeter

14. Sanassian, Dermenjian. A critical assessment of female middle school mathematics and science teachers' perspectives of the Abu Dhabi education reform programme and the use of English as a medium of instruction.

Degree: Thesis (EdD), 2011, University of Exeter

URL: http://hdl.handle.net/10036/3475

► The Ministry of Education in Abu Dhabi launched an extensive reform initiative developed by the Abu Dhabi Education Council (ADEC) in partnership with international operators.… (more)

▼ The Ministry of Education in Abu Dhabi launched an extensive reform initiative developed by the Abu Dhabi Education Council (ADEC) in partnership with international operators. The reform has introduced innovative teaching methodologies, modern books, a new curriculum and the use of English as a medium of instruction (EMI) in mathematics and science classes. The research carried out for this thesis investigated 11 Emirati female teachers. The data was collected from interviews and several informal observations carried out in a public middle school in a town outside Abu Dhabi city, UAE. The rationale for this study is to critically investigate the effects that rapid reform is having on the performance of the female teachers in the classroom and the impact of this speedy reform on their professional and personal lives so as to highlight differences between reform theory and practice. This study is significant because few studies on female teachers in a Gulf educational reform environment have been undertaken and it is essential to uncover the foreign and non-egalitarian nature of the reform programme. Therefore, the study’s aims are to highlight teacher perspectives and teacher marginalization, EMI and consider whether the reform is being implemented successfully at the classroom level. Of course, an important aim of this critical study has also been to raise the consciousness of those participating in the reform. This study has revealed mostly negative perceptions regarding the Abu Dhabi education reform programme, in particular with teachers’ perceptions of the work environment and the new pedagogy. It has also disclosed several instances of teacher marginalization as the result of a top-down reform and has exposed a prevailing sentiment of teacher disempowerment because of the presence of foreigners operating in the country. Teacher perceptions regarding EMI have been numerous in particular with cultural issues relating to the use of EMI in mathematics and science classes. Surprisingly, the study revealed a few unexpected positive findings with certain aspects of reform.

Subjects/Keywords: 370.95357; Educational reform; Emirati teachers' perspectives; EMI; ESL

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sanassian, D. (2011). A critical assessment of female middle school mathematics and science teachers' perspectives of the Abu Dhabi education reform programme and the use of English as a medium of instruction. (Doctoral Dissertation). University of Exeter. Retrieved from http://hdl.handle.net/10036/3475

Chicago Manual of Style (16^th Edition):

Sanassian, Dermenjian. “A critical assessment of female middle school mathematics and science teachers' perspectives of the Abu Dhabi education reform programme and the use of English as a medium of instruction.” 2011. Doctoral Dissertation, University of Exeter. Accessed December 06, 2019. http://hdl.handle.net/10036/3475.

MLA Handbook (7^th Edition):

Sanassian, Dermenjian. “A critical assessment of female middle school mathematics and science teachers' perspectives of the Abu Dhabi education reform programme and the use of English as a medium of instruction.” 2011. Web. 06 Dec 2019.

Vancouver:

Sanassian D. A critical assessment of female middle school mathematics and science teachers' perspectives of the Abu Dhabi education reform programme and the use of English as a medium of instruction. [Internet] [Doctoral dissertation]. University of Exeter; 2011. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/10036/3475.

Council of Science Editors:

Sanassian D. A critical assessment of female middle school mathematics and science teachers' perspectives of the Abu Dhabi education reform programme and the use of English as a medium of instruction. [Doctoral Dissertation]. University of Exeter; 2011. Available from: http://hdl.handle.net/10036/3475

University of Kentucky

15. Fitzwater, Chris. FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES IN EPOXY COMPOSITES.

Degree: 2010, University of Kentucky

URL: http://uknowledge.uky.edu/gradschool_theses/10

► Multi-walled carbon nanotubes (MWNTs) are a relatively new allotrope of carbon that have potentially useful properties that may improve polymer composites. The work of this… (more)

Subjects/Keywords: Carbon nanotubes; Composites; EMI shielding; Rheology; Nanotechnology; Chemistry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fitzwater, C. (2010). FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES IN EPOXY COMPOSITES. (Masters Thesis). University of Kentucky. Retrieved from http://uknowledge.uky.edu/gradschool_theses/10

Chicago Manual of Style (16^th Edition):

Fitzwater, Chris. “FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES IN EPOXY COMPOSITES.” 2010. Masters Thesis, University of Kentucky. Accessed December 06, 2019. http://uknowledge.uky.edu/gradschool_theses/10.

MLA Handbook (7^th Edition):

Fitzwater, Chris. “FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES IN EPOXY COMPOSITES.” 2010. Web. 06 Dec 2019.

Vancouver:

Fitzwater C. FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES IN EPOXY COMPOSITES. [Internet] [Masters thesis]. University of Kentucky; 2010. [cited 2019 Dec 06]. Available from: http://uknowledge.uky.edu/gradschool_theses/10.

Council of Science Editors:

Fitzwater C. FUNCTIONALIZATION OF MULTI-WALLED CARBON NANOTUBES IN EPOXY COMPOSITES. [Masters Thesis]. University of Kentucky; 2010. Available from: http://uknowledge.uky.edu/gradschool_theses/10

16. Perez, Felix. DEVELOPMENT OF AN EMI MEASUREMENT SYSTEM : Performance Analysis of Bluetooth communication under noise environment.

Degree: Technology and Built Environment, 2008, University of Gävle

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-721

► This thesis is a project carried out at the “Centre for RF Measurements Technology of Gävle”. The first aim of this work was basically… (more)

Subjects/Keywords: EMI; Bluetooth; Electronic measurement and instrumentation; Elektronisk mät- och apparatteknik

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APA (6^th Edition):

Perez, F. (2008). DEVELOPMENT OF AN EMI MEASUREMENT SYSTEM : Performance Analysis of Bluetooth communication under noise environment. (Thesis). University of Gävle. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-721

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Perez, Felix. “DEVELOPMENT OF AN EMI MEASUREMENT SYSTEM : Performance Analysis of Bluetooth communication under noise environment.” 2008. Thesis, University of Gävle. Accessed December 06, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-721.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Perez, Felix. “DEVELOPMENT OF AN EMI MEASUREMENT SYSTEM : Performance Analysis of Bluetooth communication under noise environment.” 2008. Web. 06 Dec 2019.

Vancouver:

Perez F. DEVELOPMENT OF AN EMI MEASUREMENT SYSTEM : Performance Analysis of Bluetooth communication under noise environment. [Internet] [Thesis]. University of Gävle; 2008. [cited 2019 Dec 06]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-721.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Perez F. DEVELOPMENT OF AN EMI MEASUREMENT SYSTEM : Performance Analysis of Bluetooth communication under noise environment. [Thesis]. University of Gävle; 2008. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-721

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Baptista, Pedro. Análise fatorial confirmatória do Exercise Motivation Inventory-2 (EMI-2) e validação de uma versão reduzida.

Degree: 2013, RCAAP

URL: https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipsantarem.pt:10400.15/1313

►

Projeto de Investigação apresentado para a obtenção do grau de Mestre em Psicologia do Desporto e do Exercício

Resumo geral Esta tese centra-se na validação… (more)

▼

Projeto de Investigação apresentado para a obtenção do grau de Mestre em Psicologia do Desporto e do Exercício

Resumo geral Esta tese centra-se na validação de instrumentos para análise dos motivos para a prática de exercício físico e divide-se em dois estudos com um seguimento lógico de organização entre eles. O primeiro estudo centra-se na necessidade de validação do Exercise Motivation Invetory 2, onde é elaborada uma Análise Fatorial Confirmatória que pretende determinar se este questionário preenche todos os requisitos para que possa ser aplicado na população portuguesa. Para que este processo se pudesse suceder foi necessário recorrer a utilização de programas específicos e a procedimentos estatísticos avançados específicos numa amostra bastante larga. No seguimento do primeiro estudo, surge o segundo estudo que pretende fazer uma redução do EMI-2p. Visto que o instrumento se encontra validado, ocorre uma nova preocupação, o fato deste ter um vasto número de itens cria, assim, a necessidade selecionar os itens com pesos fatoriais mais fortes dentro dos catorze fatores, fazendo assim com que a estrutura original se mantenha. Este processo foi possível através de uma Análise Fatorial Exploratória, para que se pudesse elaborar a distribuição dos itens por novos fatores, e uma Análise Fatorial Confirmatória, com intuito de confirmar esta nova versão. A partir dos resultados obtidos foi possível validar o instrumento de medida para a população portuguesa bem como uma versão reduzida do EMI-2p.

General Abstract This thesis focuses on the validation of tools for analysis of the reasons for the practice of physical exercise and it is divided in two studies with a logical continuation of organization among them. The first study focuses on the need for validation of the Exercise Motivation Invetory 2, which is drafting a Confirmatory Factor Analysis which aims to determine whether this questionnaire meets all the requirements for it to be applied in the Portuguese population. For this process could succeed was necessary to resort to the use of specific programs and specific advanced statistical procedures in a fairly large sample. Following the first study, the second study arises you want to make a reduction of EMI-2p. Since the instrument is valid, a new concern is the fact that these have a large number of items thus creates the need to select items factor weights within fourteen strongest factors, thereby making the original structure remains . This process was made possible through an exploratory factor analysis, so that one could draw the distribution of items by new factors, and a Confirmatory Factor Analysis, in order to confirm this new version. From these results it was possible to validate the measurement instrument for the Portuguese population as well as a reduced version of the EMI-2p

Advisors/Committee Members: Moutão, João, Cid, Luís.

Subjects/Keywords: Exercise Motivation Inventory-2 (EMI-2); Análise; Validação

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Baptista, P. (2013). Análise fatorial confirmatória do Exercise Motivation Inventory-2 (EMI-2) e validação de uma versão reduzida. (Thesis). RCAAP. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipsantarem.pt:10400.15/1313

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Baptista, Pedro. “Análise fatorial confirmatória do Exercise Motivation Inventory-2 (EMI-2) e validação de uma versão reduzida.” 2013. Thesis, RCAAP. Accessed December 06, 2019. https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipsantarem.pt:10400.15/1313.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Baptista, Pedro. “Análise fatorial confirmatória do Exercise Motivation Inventory-2 (EMI-2) e validação de uma versão reduzida.” 2013. Web. 06 Dec 2019.

Vancouver:

Baptista P. Análise fatorial confirmatória do Exercise Motivation Inventory-2 (EMI-2) e validação de uma versão reduzida. [Internet] [Thesis]. RCAAP; 2013. [cited 2019 Dec 06]. Available from: https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipsantarem.pt:10400.15/1313.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Baptista P. Análise fatorial confirmatória do Exercise Motivation Inventory-2 (EMI-2) e validação de uma versão reduzida. [Thesis]. RCAAP; 2013. Available from: https://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipsantarem.pt:10400.15/1313

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

18. Sobha, A. P. Development of functionalised multiwalled carbon nanotube/polyaniline composites for electrical applications.

Degree: 2015, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/5059

► Combining intrinsically conducting polymers with carbon nanotubes (CNT) helps in creating composites with superior electrical and thermal characteristics. These composites are capable of replacing metals… (more)

▼ Combining intrinsically conducting polymers with carbon nanotubes (CNT) helps in creating composites with superior electrical and thermal characteristics. These composites are capable of replacing metals and semiconductors as they possess unique combination of electrical conductivity, flexibility, stretchability, softness and bio-compatibility. Their potential for use in various organic devices such as super capacitors, printable conductors, optoelectronic devices, sensors, actuators, electrochemical devices, electromagnetic interference shielding, field effect transistors, LEDs, thermoelectrics etc. makes them excellent substitutes for present day semiconductors.However, many of these potential applications have not been fully exploited because of various open–ended challenges. Composites meant for use in organic devices require highly stable conductivity for the longevity of the devices. CNT when incorporated at specific proportions, and with special methods contributes quite positively to this end.The increasing demand for energy and depleting fossil fuel reserves has broadened the scope for research into alternative energy sources. A unique and efficient method for harnessing energy is thermoelectric energy conversion method. Here, heat is converted directly into electricity using a class of materials known as thermoelectric materials. Though polymers have low electrical conductivity and thermo power, their low thermal conductivity favours use as a thermoelectric material. The thermally disconnected, but electrically connected carrier pathways in CNT/Polymer composites can satisfy the so-called “phonon-glass/electron-crystal” property required for thermoelectric materials. Strain sensing is commonly used for monitoring in engineering, medicine, space or ocean research. Polymeric composites are ideal candidates for the manufacture of strain sensors. Conducting elastomeric composites containing CNT are widely used for this application. These CNT/Polymer composites offer resistance change over a large strain range due to the low Young‟s modulus and higher elasticity. They are also capable of covering surfaces with arbitrary curvatures.Due to the high operating frequency and bandwidth of electronic equipments electromagnetic interference (EMI) has attained the tag of an „environmental pollutant‟, affecting other electronic devices as well as living organisms. Among the EMI shielding materials, polymer composites based on carbon nanotubes show great promise. High strength and stiffness, extremely high aspect ratio, and good electrical conductivity of CNT make it a filler of choice for shielding applications. A method for better dispersion, orientation and connectivity of the CNT in polymer matrix is required to enhance conductivity and EMI shielding. This thesis presents a detailed study on the synthesis of functionalised multiwalled carbon nanotube/polyaniline composites and their application in electronic devices. The major areas focused include DC conductivity retention at high temperature, thermoelectric, strain…

Subjects/Keywords: Conducting polymers; Carbon Nano Tubes; electrical conductivity; electromagnetic interference (EMI)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sobha, A. P. (2015). Development of functionalised multiwalled carbon nanotube/polyaniline composites for electrical applications. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/5059

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sobha, A P. “Development of functionalised multiwalled carbon nanotube/polyaniline composites for electrical applications.” 2015. Thesis, Cochin University of Science and Technology. Accessed December 06, 2019. http://dyuthi.cusat.ac.in/purl/5059.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sobha, A P. “Development of functionalised multiwalled carbon nanotube/polyaniline composites for electrical applications.” 2015. Web. 06 Dec 2019.

Vancouver:

Sobha AP. Development of functionalised multiwalled carbon nanotube/polyaniline composites for electrical applications. [Internet] [Thesis]. Cochin University of Science and Technology; 2015. [cited 2019 Dec 06]. Available from: http://dyuthi.cusat.ac.in/purl/5059.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sobha AP. Development of functionalised multiwalled carbon nanotube/polyaniline composites for electrical applications. [Thesis]. Cochin University of Science and Technology; 2015. Available from: http://dyuthi.cusat.ac.in/purl/5059

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

19. Vimala R. Conducted emi modeling separation and filter analysis for isolated ac dc converters;.

Degree: Conducted emi modeling separation, 2014, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/16075

►

Electro-Magnetic Interference (EMI) emission is always a great newlineconcern for power electronics circuit designers due to fast switching of newlinedevices like Metal Oxide Semiconductor Field… (more)

▼

Electro-Magnetic Interference (EMI) emission is always a great newlineconcern for power electronics circuit designers due to fast switching of newlinedevices like Metal Oxide Semiconductor Field Effect Transistor (MOSFET), newlineIntegrated Gate Bipolar Transistor (IGBT) and Gate Turn-Off Thyristor newline(GTO). Fast switching in power converters generate rapid changes in voltages newlineand currents occur with large amount of EMI. Based on frequency, EMI is newlineclassified into Conducted emissions and Radiated emissions. Conducted EMI newlinefrequency in the range of 450 kHz to 30 MHz for Federal Communications newlineCommission (FCC) Class A regulations and 150 kHz to 30 MHz for German newlineVerband Deutscher Elektroniker (VDE) regulations. Radiated EMI is newlinemeasured at higher frequencies beyond 30 MHz upto several GHz. newlineConducted EMI in Switching Power Converter (SPC) consists of newlineDifferential Mode (DM) and Common Mode (CM) noises. These two modes newlineof noises are caused by different noise sources, coupled through different newlinepaths. In SPC, the emission of EMI is unpredictable and filter design is newlinecomplicated. The filter design is based on noise source impedance. This method uses a practical approach for measuring the power converter noise newlinespectrum and uses the data to calculate the maximum value and minimum newlinevalue of the DM and CM noise source impedances. newlineDesigned filter parameters are compared with noise source newlineimpedance. If the comparison result mismatches with the noise source impedance, then the designed filter parameters are altered. Based on the above newlineconcept, filters are designed for CM and DM noises and they attenuate the newlinenoise at entire frequency range. Line Impedance Stabilization Network newline(LISN) is used to measure the Conducted emissions. A simple equivalent circuit modeling approach is proposed to newlinedescribe the EMI coupling mechanism for SPC. Proposed modeling approach newlineconsists of a minimum number of noise sources and essential coupling paths newlinethat allow easy physical interpretations.

Reference 147-154 p, Appendix 132-146 p.

Advisors/Committee Members: Baskaran K.

Subjects/Keywords: Electrical engineering; EMI modeling; Line Impedance Stabilization Network

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

R, V. (2014). Conducted emi modeling separation and filter analysis for isolated ac dc converters;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/16075

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

R, Vimala. “Conducted emi modeling separation and filter analysis for isolated ac dc converters;.” 2014. Thesis, Anna University. Accessed December 06, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/16075.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

R, Vimala. “Conducted emi modeling separation and filter analysis for isolated ac dc converters;.” 2014. Web. 06 Dec 2019.

Vancouver:

R V. Conducted emi modeling separation and filter analysis for isolated ac dc converters;. [Internet] [Thesis]. Anna University; 2014. [cited 2019 Dec 06]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/16075.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

R V. Conducted emi modeling separation and filter analysis for isolated ac dc converters;. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/16075

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

20. Khan, Zulfiqar A. EMI/EMC analysis of electronic systems subject to near zone illuminations.

Degree: PhD, Electrical Engineering, 2007, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1196207323

► There is an increasing interest to evaluate performance of electronic systems subject to electromagnetic interference (EMI). To this end, an efficient technique for system level… (more)

▼ There is an increasing interest to evaluate performance of electronic systems subject to electromagnetic interference (EMI). To this end, an efficient technique for system level EMI/EMC analysis of electronic systems was recently proposed. This scheme, referred to as the hybrid S-matrix method, is based on introducing an additional port on the printed circuit board (PCB) and cable network to represent the plane wave excitation. The scattering matrix for the network (with the added port) is generated once the transmission line (TL) modes are extracted from the induced voltages. The resulting hybrid S-matrix allows for complete characterization of a microwave network in presence of enclosures or other scatterers. It can then be ported into a circuit solver for complex EMI/EMC analysis of electronic devices. This dissertation extends the hybrid S-matrix approach to near zone sources. A key aspect of this generalization is the use of the FFT rather than the GPOF to identify the TL modes in presence of the continuous spectrum of forced modes introduced by the near zone sources. Examples are shown to validate the generalized hybrid S-matrix method. These include a multi-layered PCB in the presence of nearby cables and when enclosed by the metallic structures with openings. The final chapter of the dissertation contains numerous experimental examples that provide for the first time a set of realistic EMI/EMC reference data. Specifically, field penetration through apertures and coupling of penetrating wires onto the printed circuit boards (PCBs) enclosed by resonant structures are considered. In contrast to other measurements, we focus on multi-cavity enclosures in presence of cables and PCBs. The purpose of this experimental study is to provide accurate reference data for possible future validation of various computational tools and to test their accuracy and efficiency on realistic platforms. In particular, we validate the proposed hybrid S-matrix method. Advisors/Committee Members: Volakis, John (Advisor).

Subjects/Keywords: Electromagnetic Compatibility (EMC); Electromagnetic Interference (EMI); S-parameters; Measurements

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khan, Z. A. (2007). EMI/EMC analysis of electronic systems subject to near zone illuminations. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1196207323

Chicago Manual of Style (16^th Edition):

Khan, Zulfiqar A. “EMI/EMC analysis of electronic systems subject to near zone illuminations.” 2007. Doctoral Dissertation, The Ohio State University. Accessed December 06, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1196207323.

MLA Handbook (7^th Edition):

Khan, Zulfiqar A. “EMI/EMC analysis of electronic systems subject to near zone illuminations.” 2007. Web. 06 Dec 2019.

Vancouver:

Khan ZA. EMI/EMC analysis of electronic systems subject to near zone illuminations. [Internet] [Doctoral dissertation]. The Ohio State University; 2007. [cited 2019 Dec 06]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1196207323.

Council of Science Editors:

Khan ZA. EMI/EMC analysis of electronic systems subject to near zone illuminations. [Doctoral Dissertation]. The Ohio State University; 2007. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1196207323

NSYSU

21. Su, Hsin-Lung. Low Cost Common- and Differential-Mode Noise Diagnostic Circuit and Computer-Aided Design of Power Line Filter.

Degree: Master, Electrical Engineering, 2000, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0619100-164404

► Nowadays, electronics has really flourished with the rapid progress in science and technology. Besides being light and efficient of the products, digitalization and faster speed… (more)

Subjects/Keywords: Filter; Conducted EMI; Separator

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APA (6^th Edition):

Su, H. (2000). Low Cost Common- and Differential-Mode Noise Diagnostic Circuit and Computer-Aided Design of Power Line Filter. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0619100-164404

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Su, Hsin-Lung. “Low Cost Common- and Differential-Mode Noise Diagnostic Circuit and Computer-Aided Design of Power Line Filter.” 2000. Thesis, NSYSU. Accessed December 06, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0619100-164404.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Su, Hsin-Lung. “Low Cost Common- and Differential-Mode Noise Diagnostic Circuit and Computer-Aided Design of Power Line Filter.” 2000. Web. 06 Dec 2019.

Vancouver:

Su H. Low Cost Common- and Differential-Mode Noise Diagnostic Circuit and Computer-Aided Design of Power Line Filter. [Internet] [Thesis]. NSYSU; 2000. [cited 2019 Dec 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0619100-164404.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Su H. Low Cost Common- and Differential-Mode Noise Diagnostic Circuit and Computer-Aided Design of Power Line Filter. [Thesis]. NSYSU; 2000. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0619100-164404

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

22. Chen, Chien-Pin. The Application of Power Line Carrier Technology to Demand Response and Asset Management of Smart Grid.

Degree: Master, Electrical Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711112-124200

► This thesis develops a power line carrier(PLC) communication module using FSK modulation technology by integration of PLC chip, with various hardware circuits such as DSP,… (more)

Subjects/Keywords: FSK; smart grid; conduction EMI; demand response; power line carrier

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chen, C. (2012). The Application of Power Line Carrier Technology to Demand Response and Asset Management of Smart Grid. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711112-124200

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chen, Chien-Pin. “The Application of Power Line Carrier Technology to Demand Response and Asset Management of Smart Grid.” 2012. Thesis, NSYSU. Accessed December 06, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711112-124200.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chen, Chien-Pin. “The Application of Power Line Carrier Technology to Demand Response and Asset Management of Smart Grid.” 2012. Web. 06 Dec 2019.

Vancouver:

Chen C. The Application of Power Line Carrier Technology to Demand Response and Asset Management of Smart Grid. [Internet] [Thesis]. NSYSU; 2012. [cited 2019 Dec 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711112-124200.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen C. The Application of Power Line Carrier Technology to Demand Response and Asset Management of Smart Grid. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711112-124200

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

23. Hsu, Chia-Hsang. A novel design to reduce the common mode noise for a pair of differential transmission-line bend.

Degree: Master, Communications Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-172822

► In recent year, the single-end transmission line is instead by differential transmission line . Differential signaling has been generally used in the high speed digital… (more)

Subjects/Keywords: Guard trace; EMI; Differential pair; Common mode noise

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hsu, C. (2012). A novel design to reduce the common mode noise for a pair of differential transmission-line bend. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-172822

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hsu, Chia-Hsang. “A novel design to reduce the common mode noise for a pair of differential transmission-line bend.” 2012. Thesis, NSYSU. Accessed December 06, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-172822.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hsu, Chia-Hsang. “A novel design to reduce the common mode noise for a pair of differential transmission-line bend.” 2012. Web. 06 Dec 2019.

Vancouver:

Hsu C. A novel design to reduce the common mode noise for a pair of differential transmission-line bend. [Internet] [Thesis]. NSYSU; 2012. [cited 2019 Dec 06]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-172822.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hsu C. A novel design to reduce the common mode noise for a pair of differential transmission-line bend. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-172822

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

24. Yang, Sungwoo. The Study Of Variables Influencing The Effect Of English Medium Instruction On Academic Content Learning And English Proficiency Development.

Degree: PhD, Curriculum and Instruction, 2014, Penn State University

URL: https://etda.libraries.psu.edu/catalog/22592

► The purposes of the study were to identify the influential variables to determine the effects of EMI (English-Medium Instruction) approach on academic content learning (CL)… (more)

Subjects/Keywords: English medium instruction (EMI); ESL/EFL teaching; tertiary level

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yang, S. (2014). The Study Of Variables Influencing The Effect Of English Medium Instruction On Academic Content Learning And English Proficiency Development. (Doctoral Dissertation). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/22592

Chicago Manual of Style (16^th Edition):

Yang, Sungwoo. “The Study Of Variables Influencing The Effect Of English Medium Instruction On Academic Content Learning And English Proficiency Development.” 2014. Doctoral Dissertation, Penn State University. Accessed December 06, 2019. https://etda.libraries.psu.edu/catalog/22592.

MLA Handbook (7^th Edition):

Yang, Sungwoo. “The Study Of Variables Influencing The Effect Of English Medium Instruction On Academic Content Learning And English Proficiency Development.” 2014. Web. 06 Dec 2019.

Vancouver:

Yang S. The Study Of Variables Influencing The Effect Of English Medium Instruction On Academic Content Learning And English Proficiency Development. [Internet] [Doctoral dissertation]. Penn State University; 2014. [cited 2019 Dec 06]. Available from: https://etda.libraries.psu.edu/catalog/22592.

Council of Science Editors:

Yang S. The Study Of Variables Influencing The Effect Of English Medium Instruction On Academic Content Learning And English Proficiency Development. [Doctoral Dissertation]. Penn State University; 2014. Available from: https://etda.libraries.psu.edu/catalog/22592

University of Tennessee – Knoxville

25. Xue, Jing. High Density EMI Filter Design in High Power Three-Phase Motor Drive Systems.

Degree: 2014, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_graddiss/2907

► High density EMI filter is important in the application of more-electric-aircraft (MEA). In this work, the author is focusing on several major aspects of EMI… (more)

▼ High density EMI filter is important in the application of more-electric-aircraft (MEA). In this work, the author is focusing on several major aspects of EMI filter design that would influence the power density. In Chapter 1, the feature of EMI study and conventional design methods are reviewed. The interaction between the common-mode (CM) and differential-mode (DM) noise is one key factor introducing unnecessary weight to EMI filter design. In Chapter 2, the author explains the origin of the mixed-mode (MM) noise on the output side of three-phase motor drives. Experimental results have verified the existence of the MM noise in three-phase motor drives and its impact on power density. In Chapter 3, the noise mode transformation (NMT) in three-phase motor drives due to system impedance unbalance is discussed. Simulation and experimental results show that the NMT will cause EMI filter overdesign if not considered during the design stage. In Chapter 4 the author discusses the possibility of adding a CM inductor at the motor front and chassis end to reduce CM EMI filter weight. Experimental results show that the motor-end filter is effective in attenuating low frequency noise and has the benefit of being light weight comparing with the traditional three-phase CM choke. Cooling of the filter is of great importance in high power systems. In Chapter 5, a practical liquid-cooling design procedure for EMI filters in high power motor drives has been discussed. Potting and thermal modeling are analyzed. Thermal test results verify the effectiveness of the procedure. In Chapter 6, the author models the impedance impact of potting material and cooling cases on both CM and DM inductors. Experimental results match well with the developed models. In Chapter 7, a comprehensive design procedure for high density EMI filter in high power motor drives has been proposed, based on the knowledge of previous chapters. As the verification of the procedure, a high density EMI filter is designed and tested in a 100 kW three-phase motor drive system for MEA application. Conclusion and future work are summarized in Chapter 8.

Subjects/Keywords: EMI; filter; high density; CM; DM; Power and Energy

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APA (6^th Edition):

Xue, J. (2014). High Density EMI Filter Design in High Power Three-Phase Motor Drive Systems. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/2907

Chicago Manual of Style (16^th Edition):

Xue, Jing. “High Density EMI Filter Design in High Power Three-Phase Motor Drive Systems.” 2014. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed December 06, 2019. https://trace.tennessee.edu/utk_graddiss/2907.

MLA Handbook (7^th Edition):

Xue, Jing. “High Density EMI Filter Design in High Power Three-Phase Motor Drive Systems.” 2014. Web. 06 Dec 2019.

Vancouver:

Xue J. High Density EMI Filter Design in High Power Three-Phase Motor Drive Systems. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2014. [cited 2019 Dec 06]. Available from: https://trace.tennessee.edu/utk_graddiss/2907.

Council of Science Editors:

Xue J. High Density EMI Filter Design in High Power Three-Phase Motor Drive Systems. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2014. Available from: https://trace.tennessee.edu/utk_graddiss/2907

26. Prata, Márcio Lisandro da Costa. Compatibilidade electromagnética: perturbações injectadas na rede eléctrica por onduladores de tensão.

Degree: 2012, Repositório Científico do Instituto Politécnico de Lisboa

URL: http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/2134

► O desenvolvimento verificado nos semicondutores de potência permitiu uma revolução no processamento de energia eléctrica e com ele surgiram novos problemas relacionado com a qualidade… (more)

▼ O desenvolvimento verificado nos semicondutores de potência permitiu uma revolução no processamento de energia eléctrica e com ele surgiram novos problemas relacionado com a qualidade de energia eléctrica. A produção a baixo custo dos semicondutores permitiu a massificação e disseminação de conversores estáticos de potência nas áreas industrial e residencial. Ao longo do tempo, têm vindo a aparecer sistemas e equipamentos electrónicos com o propósito de dar resposta às novas necessidades de processamento de energia eléctrica. Os inversores de tensão, conversores DC/AC, passaram a ser de utilização corrente. Uma vez que estes possuem comportamento não-lineares, são fontes de ruído e “lixo” harmónico, levantam problemas do ponto de vista da Compatibilidade Electromagnética (EMC). A Comissão Electrotécnica Internacional (IEC) debruça-se sobre estes fenómenos, desde 1906, sendo já normalização em vigor de maneira a atenuar o efeito da injecção de harmónicas de corrente na rede eléctrica. Alguma da normalização do IEC é desenvolvida em conjunto com a Organização Internacional de Normalização (ISO). Na Europa, o organismo responsável pela normalização electrotécnica é o Comité Europeu para a Normalização Electrotécnica (CENELEC). Em Portugal, a normalização está a cargo do Instituto Português de Qualidade (IPQ) e existem três tipos de normas: - Normas estritamente portuguesas (NP) - Normas que resultam da adopção de normas europeias (NP EN) - Normas que resultam da adopção de uma norma europeia, por sua vez, resultante da adopção de uma norma internacional (NP EN ISO) Neste trabalho é apresentado um estudo teórico e experimental relativo à geração e injecção na rede eléctrica de harmónicas de corrente por onduladores de tensão. Tendo em vista a comparação experimental e a medição de injecção harmónica de correntes na rede, foi projectado e construído um ondulador de tensão trifásico e uma rede estabilizadora de impedância de linha. Os estudos debruçam-se sobre o comportamento do ondulador de tensão monofásico, para o qual foram apenas utilizados dois braços do ondulador. Para além do estudo das harmónicas de corrente de baixa frequência, reguladas pela normalização nacional, foram apenas feitos estudos relativos à medida das perturbações de modo comum e modo diferencial propagadas por condução na gama das frequências mais elevadas. Advisors/Committee Members: Margato, Elmano da Fonseca, Chaves, Miguel Cabral Ferreira.

Subjects/Keywords: Compatibilidade electromagnética (EMC); Onduladores de tensão; Harmónicas; Interferências electromagnéticas (EMI)

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Prata, M. L. d. C. (2012). Compatibilidade electromagnética: perturbações injectadas na rede eléctrica por onduladores de tensão. (Thesis). Repositório Científico do Instituto Politécnico de Lisboa. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/2134

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Prata, Márcio Lisandro da Costa. “Compatibilidade electromagnética: perturbações injectadas na rede eléctrica por onduladores de tensão.” 2012. Thesis, Repositório Científico do Instituto Politécnico de Lisboa. Accessed December 06, 2019. http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/2134.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Prata, Márcio Lisandro da Costa. “Compatibilidade electromagnética: perturbações injectadas na rede eléctrica por onduladores de tensão.” 2012. Web. 06 Dec 2019.

Vancouver:

Prata MLdC. Compatibilidade electromagnética: perturbações injectadas na rede eléctrica por onduladores de tensão. [Internet] [Thesis]. Repositório Científico do Instituto Politécnico de Lisboa; 2012. [cited 2019 Dec 06]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/2134.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Prata MLdC. Compatibilidade electromagnética: perturbações injectadas na rede eléctrica por onduladores de tensão. [Thesis]. Repositório Científico do Instituto Politécnico de Lisboa; 2012. Available from: http://www.rcaap.pt/detail.jsp?id=oai:repositorio.ipl.pt:10400.21/2134

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Loughborough University

27. Lukic, Marija. 3-D jetting for enhanced functionality of thermoset elastomeric materials.

Degree: PhD, 2017, Loughborough University

URL: https://dspace.lboro.ac.uk/2134/33328 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747899

► The aim of this work was to assess the feasibility of 3-D inkjet printing of elastomers in latex form to create a novel material that… (more)

▼ The aim of this work was to assess the feasibility of 3-D inkjet printing of elastomers in latex form to create a novel material that would offer shielding against electromagnetic interference (EMI). To achieve this aim it was necessary to characterise and select suitable materials, carry out ink jetting trials, modify the materials accordingly to improve the printability and assess post jetting conditions including drying and curing behaviour. Particle size, surface tension, and viscosity measurements were made for a series of elastomer latex materials and carboxylated styrene butadiene rubber (XSBR) latex was identified as the most suitable. Latex ink optimisation included dilution with water and the addition of a humectant, triethylene glycol monomethyl ether (TGME), which delayed drying and reduced nozzle blocking. The surface energy was measured for arrange of potential substrates and PET was identified as the most suitable, due to its relatively high surface energy which allowed for an ideal level of wetting and spreading. Analysis of the cross-sectional profiles of the printed samples by white light interferometry showed that drying during printing was an important issue for the latex ink. Ink jetting of a composite material with control of filler distribution was shown to be feasible when ten layers of conductive carbon black ink were deposited alternately between ten layers of XSBR ink. Printing was successfully carried out with a latex combined with a resorcinol resin which was subsequently cured, indicating that it should be possible to 3D print a thermoset elastomer in this way. Conductive carbon black was printed in various patterns onto PET sheet and the dielectric properties measured. Results indicated that at very low carbon contents, the printed patterns could provide EMI shielding. The research has shown that it is feasible to create a cured 3D elastomeric object containing filler with a controlled distribution that is capable of providing EMI shielding.

Subjects/Keywords: 3-D printing; Inkjet printing; EMI shielding; Materials; Elastomers; Rubber

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lukic, M. (2017). 3-D jetting for enhanced functionality of thermoset elastomeric materials. (Doctoral Dissertation). Loughborough University. Retrieved from https://dspace.lboro.ac.uk/2134/33328 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747899

Chicago Manual of Style (16^th Edition):

Lukic, Marija. “3-D jetting for enhanced functionality of thermoset elastomeric materials.” 2017. Doctoral Dissertation, Loughborough University. Accessed December 06, 2019. https://dspace.lboro.ac.uk/2134/33328 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747899.

MLA Handbook (7^th Edition):

Lukic, Marija. “3-D jetting for enhanced functionality of thermoset elastomeric materials.” 2017. Web. 06 Dec 2019.

Vancouver:

Lukic M. 3-D jetting for enhanced functionality of thermoset elastomeric materials. [Internet] [Doctoral dissertation]. Loughborough University; 2017. [cited 2019 Dec 06]. Available from: https://dspace.lboro.ac.uk/2134/33328 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747899.

Council of Science Editors:

Lukic M. 3-D jetting for enhanced functionality of thermoset elastomeric materials. [Doctoral Dissertation]. Loughborough University; 2017. Available from: https://dspace.lboro.ac.uk/2134/33328 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.747899

Clemson University

28. Kwak, Ho-cheol. INVESTIGATION OF TECHNIQUES FOR REDUCING UNINTENTIONAL ELECTROMAGNETIC EMISSIONS FROM ELECTRONIC CIRCUITS AND SYSTEMS.

Degree: PhD, Electrical and Computer Engineering, 2011, Clemson University

URL: https://tigerprints.clemson.edu/all_dissertations/716

► This dissertation describes three independent studies related to techniques for reducing unintentional electromagnetic emissions from electronic circuits and systems. The topics covered are: low-inductance multi-layer… (more)

▼ This dissertation describes three independent studies related to techniques for reducing unintentional electromagnetic emissions from electronic circuits and systems. The topics covered are: low-inductance multi-layer ceramic capacitor for high frequency circuit board decoupling, the application of imbalance difference model to various circuit board and cable geometries, and balanced cable interface for reducing common-mode currents from power inverter. The first chapter discusses the importance and the meaning of the connection inductance associated with MLCCs and analyzes the effect of plate orientation in MLCCs. It demonstrates that vertically oriented plates have no more or less inductance than horizontally oriented plates when the overall dimensions of the plate stack are similar. Decoupling capacitance options at the various levels of a high-speed circuit is investigated to determine the range of frequencies that decoupling at each level is likely to be is effective. Innovative low-inductance capacitive-stem capacitor configurations are described and their connection impedance is compared to that of standard surface-mounted capacitors. The second chapter investigates the imbalance difference model that is a method for modeling how differential-mode signal currents are converted to common-mode noise currents. Various cable geometries to determine how well imbalance factor`s values of DM-to-CM conversion compare to full-wave calculations are explored. The imbalance difference model can be applied to cables with more than two conductors are demonstrated. The third chapter investigates the balanced cable interface for reducing common-mode currents from power inverter. The concept of a balancing network to reduce the common-mode currents on power inverter cables above 30 MHz is introduced. An experimental test set-up is used to demonstrate the effect of a balancing network on the common-mode current, differential-mode current and the common-mode rejection ratio on a balanced cable with an imbalanced termination. The balancing network is also evaluated using a 3-phase brushless DC motor driver to verify its effectiveness in a real application. Advisors/Committee Members: Hubing, Todd H, Pearson , L Wison, Wang , Pingshan, Park , Chanseok.

Subjects/Keywords: Antenna; Balancing; Decoupling; EMI/EMC; Packaging; Power Inverter; Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kwak, H. (2011). INVESTIGATION OF TECHNIQUES FOR REDUCING UNINTENTIONAL ELECTROMAGNETIC EMISSIONS FROM ELECTRONIC CIRCUITS AND SYSTEMS. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/716

Chicago Manual of Style (16^th Edition):

Kwak, Ho-cheol. “INVESTIGATION OF TECHNIQUES FOR REDUCING UNINTENTIONAL ELECTROMAGNETIC EMISSIONS FROM ELECTRONIC CIRCUITS AND SYSTEMS.” 2011. Doctoral Dissertation, Clemson University. Accessed December 06, 2019. https://tigerprints.clemson.edu/all_dissertations/716.

MLA Handbook (7^th Edition):

Kwak, Ho-cheol. “INVESTIGATION OF TECHNIQUES FOR REDUCING UNINTENTIONAL ELECTROMAGNETIC EMISSIONS FROM ELECTRONIC CIRCUITS AND SYSTEMS.” 2011. Web. 06 Dec 2019.

Vancouver:

Kwak H. INVESTIGATION OF TECHNIQUES FOR REDUCING UNINTENTIONAL ELECTROMAGNETIC EMISSIONS FROM ELECTRONIC CIRCUITS AND SYSTEMS. [Internet] [Doctoral dissertation]. Clemson University; 2011. [cited 2019 Dec 06]. Available from: https://tigerprints.clemson.edu/all_dissertations/716.

Council of Science Editors:

Kwak H. INVESTIGATION OF TECHNIQUES FOR REDUCING UNINTENTIONAL ELECTROMAGNETIC EMISSIONS FROM ELECTRONIC CIRCUITS AND SYSTEMS. [Doctoral Dissertation]. Clemson University; 2011. Available from: https://tigerprints.clemson.edu/all_dissertations/716

29. O'REILLY, JANE MARY. Novel Instrumentation for High Frequency Electrical Conductivity and Magnetisation Dynamics Characterisation.

Degree: School of Physics. Discipline of Physics, 2018, Trinity College Dublin

URL: http://hdl.handle.net/2262/83104

► The drive toward smaller devices and faster operational speeds places a challenge on techniques for probing electrical conductivity and magnetisation dynamics. This thesis attempts to… (more)

▼ The drive toward smaller devices and faster operational speeds places a challenge on techniques for probing electrical conductivity and magnetisation dynamics. This thesis attempts to address this challenge by developing novel instrumentation capable of accessing higher frequencies on-chip and in bulk devices and further expands conventional thin-film characterisation techniques to higher frequencies for analysis of non-continuous media. To begin, contactless broadband microwave techniques, conventionally used to characterise thin-film devices, are adapted for non-destructive conductivity characterisation of randomly assembled arrays of metallic nanowires. Using a microstrip transmission line carrier, inductive broadband (CW (Continuous Wave) VNA (Vector Network Analysis) < 20 GHz and pulsed TDR (Time-Domain Reflectometry) < 50 GHz) measurements of conductance and distributed capacitance are performed for spray deposited arrays of poly(vinylpyrrolidone) (PVP) surface coated Ag nanowires. As a follow on, rectangular cavity waveguides are designed, simulated, constructed and used to evaluate inkjet printed silver films as potential coatings for EMI shielding applications in three distinct frequency bands (X-Ku: 7-14 GHz, K: 15-20 GHz and Ka: 21-42 GHz). Comprehensive microwave reflectometry analysis is performed for films of varying thickness, in order to establish the threshold at which the films transition from a microwave transparent state to a reflective state. It is shown that films with a thickness beyond 120 nm are consistently effective EMI shields but the rate at which they transition to shielding behaviour depends on the frequency of the stimulus. Finally, two new techniques for the detection of broadband (100 MHz - 20 GHz) ferro/ferrimagnetic resonance in single-crystalline and polycrystalline materials, which rely on SQUID-based gradiometry detection of small changes in the magnetisation, are developed. In the first method small changes in the along-the-applied-field projection of the coupled magnetic moment (dmz) are detected as the material is driven into resonance. Absolute measurement of the longitudinal component of the magnetisation and the resonance induced lowering of this moment makes estimation of the precession cone angle accessible, which is typically difficult to extract using conventional cavity or stripline based detection methods. The second method invokes the change in mz with the resonance-induced thermal heating (dmz/dT). Magnetisation dynamics in bulk Y3Fe5O12 is observed over a broad range of experimental temperatures (4 K - 400 K) and fields (10 - 500 mT). The inhomogeneous microwave excitation allows for the observation of higher magnetostatic modes and the convenient tracking of very broad resonances. The two SQUID-detection techniques when combined with conventional broadband VNA-FMR, low-frequency magnetic susceptibility and DC magnetometry, all easily realised using the same module, greatly expand the amount of static and dynamic information accessible. Advisors/Committee Members: Coey, John, Stamenov, Plamen.

Subjects/Keywords: microwave; contactless; EMI; ferromagnetism; dynamics; resonance; nanowire; reflectometry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

O'REILLY, J. M. (2018). Novel Instrumentation for High Frequency Electrical Conductivity and Magnetisation Dynamics Characterisation. (Thesis). Trinity College Dublin. Retrieved from http://hdl.handle.net/2262/83104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

O'REILLY, JANE MARY. “Novel Instrumentation for High Frequency Electrical Conductivity and Magnetisation Dynamics Characterisation.” 2018. Thesis, Trinity College Dublin. Accessed December 06, 2019. http://hdl.handle.net/2262/83104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

O'REILLY, JANE MARY. “Novel Instrumentation for High Frequency Electrical Conductivity and Magnetisation Dynamics Characterisation.” 2018. Web. 06 Dec 2019.

Vancouver:

O'REILLY JM. Novel Instrumentation for High Frequency Electrical Conductivity and Magnetisation Dynamics Characterisation. [Internet] [Thesis]. Trinity College Dublin; 2018. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/2262/83104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

O'REILLY JM. Novel Instrumentation for High Frequency Electrical Conductivity and Magnetisation Dynamics Characterisation. [Thesis]. Trinity College Dublin; 2018. Available from: http://hdl.handle.net/2262/83104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

30. Yang, Yuchen. EMI Noise Reduction Techniques for High Frequency Power Converters.

Degree: PhD, Electrical Engineering, 2018, Virginia Tech

URL: http://hdl.handle.net/10919/83372

► Switch mode power supplies are widely used in different applications. High efficiency and high power density are two driving forces for power supply systems. However,… (more)

▼ Switch mode power supplies are widely used in different applications. High efficiency and high power density are two driving forces for power supply systems. However, high dv/dt and di/dt in switch mode power supplies will cause severe EMI noise issue. In a typical front-end converter, the EMI filter usually occupies 1/3 to 1/4 volume of total converter. Hence, reducing the EMI noise of power converter can help reduce the volume of EMI filter and improving the total power density of the converter. The EMI noise can be separated as differential mode (DM) noise and common mode (CM) noise. For off-line switch mode power supplies, DM noise is dominated by PFC converter. CM noise is a more complicated issue. It is contributed by both PFC converter and DC/DC converter. The DM noise is contributed by input current ripple. Therefore, one method to reduce DM noise is interleaving. There are three methods to reduce CM noise: symmetry, balance and shielding. The idea of symmetry concept is generating another dv/dt source to cancel the original dv/dt source. However, this method is very difficult to achieve and usually has more loss. The balance technique forms a Wheatstone bridge circuit to minimize the CM noise. However, the balance technique cannot achieve very good attenuation at high frequency due to parasitics. Shielding technique is very popular in isolated DC-DC converters to reduce CM noise. However, the previous shielding method requires precise control of parasitic capacitance and dv/dt. It is very difficult to achieve good CM noise attenuation in mass production. In this dissertation, a novel one-layer shielding method for PCB winding transformer is provided. This shielding technique can block CM noise from primary side and also cancel the CM noise from secondary side. In addition, shielding does not increase the loss of converter too much. Furthermore, this shielding technique can be applied to matrix transformer structure. For matrix transformer LLC converter, the inter-winding capacitor is very large and will cause severe CM noise problem. By adding shielding layer, CM noise has been greatly reduced. Although flyback and LLC resonant converter are used as examples to demonstrate the concept, the novel shielding technique can also be applied to other topologies that have similar transformer structure. With Wide-band-gap power devices, the switching frequency of power converter can be pushed 10 times higher than traditional Si based converters. This provides an opportunity to use PCB winding magnetics. In order to reduce the switching loss, critical conduction mode is used in PFC converter. Because of high AC current in the inductor winding, litz wire was used to build the inductor. However, with coupled inductor concept and the proposed winding structure, CRM inductor is integrate into PCB winding for the first time. Furthermore, balance technique is applied to reduce CM noise for PFC converter. With PCB winding, the balance technique has better high frequency performance. The PCB winding inductor can achieve high… Advisors/Committee Members: Lee, Fred C. (committeechair), Southward, Steve C. (committee member), De La Reelopez, Jaime (committee member), Li, Qiang (committee member), Centeno, Virgilio A. (committee member).

Subjects/Keywords: Wide-band-gap devices; high frequency; EMI; Magnetic integration

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yang, Y. (2018). EMI Noise Reduction Techniques for High Frequency Power Converters. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/83372

Chicago Manual of Style (16^th Edition):

Yang, Yuchen. “EMI Noise Reduction Techniques for High Frequency Power Converters.” 2018. Doctoral Dissertation, Virginia Tech. Accessed December 06, 2019. http://hdl.handle.net/10919/83372.

MLA Handbook (7^th Edition):

Yang, Yuchen. “EMI Noise Reduction Techniques for High Frequency Power Converters.” 2018. Web. 06 Dec 2019.

Vancouver:

Yang Y. EMI Noise Reduction Techniques for High Frequency Power Converters. [Internet] [Doctoral dissertation]. Virginia Tech; 2018. [cited 2019 Dec 06]. Available from: http://hdl.handle.net/10919/83372.

Council of Science Editors:

Yang Y. EMI Noise Reduction Techniques for High Frequency Power Converters. [Doctoral Dissertation]. Virginia Tech; 2018. Available from: http://hdl.handle.net/10919/83372

Open Access Theses and Dissertations