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Oregon State University
1.
Panitantum, Napong.
Ultra-low-energy transmitters for battery-free wireless sensor networks.
Degree: PhD, Electrical and Computer Engineering, 2011, Oregon State University
URL: http://hdl.handle.net/1957/21887
► As the number of autonomous data collection applications keep increasing, the demand for wireless sensor networks (WSNs) has seen explosive growth. In this dissertation, an…
(more)
▼ As the number of autonomous data collection applications keep increasing, the demand for wireless sensor networks (WSNs) has seen explosive growth. In this dissertation, an ultra-
low-
energy WSN transmitter is developed to reduce the
energy consumption of sensor nodes in WSNs. With an ultra-
low-
energy transceiver, it is possible to eliminate the battery in the sensor node and power itself with an
energy harvester, thus creating a battery-free sensor node. A variety of applications can be accommodated with the battery-free sensor node as it has small size, light weight, and endless lifetime.
Two prototype WSN transmitters are implemented to demonstrate the transmitter
energy minimization. The first transmitter incorporates a fast frequency calibration to shorten the oscillation frequency tuning time. This minimizes
energy wasted during the transmitter start-up period. The
energy consumption of the second transmitter that employs a power oscillator architecture is minimized by maximizing the transmitter efficiency. The efficiency of the power oscillator circuit is analyzed and the design procedure for maximum efficiency is then developed.
Prototype WSN transmitters were fabricated in 0.18-um CMOS technology. The first transmitter operates in the 915-MHz ISM band. With 0.5-MHz reference frequency, the transmitter takes only 72 us for the BFSK frequency calibration. It dissipates a power of 1.91 mW while radiating a power of -2.9 dBm. The second transmitter operates in the 2.45-GHz ISM band on a single supply of 0.65 V. The transmitter has efficiency as high as 23 % at -5.2 dBm radiated power. This corresponds to a
low power consumption of 1.34 mW.
Advisors/Committee Members: Fiez, Terri S. (advisor), Hanumolu, Pavan K. (committee member).
Subjects/Keywords: Ultra low energy
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APA ·
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APA (6th Edition):
Panitantum, N. (2011). Ultra-low-energy transmitters for battery-free wireless sensor networks. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/21887
Chicago Manual of Style (16th Edition):
Panitantum, Napong. “Ultra-low-energy transmitters for battery-free wireless sensor networks.” 2011. Doctoral Dissertation, Oregon State University. Accessed March 04, 2021.
http://hdl.handle.net/1957/21887.
MLA Handbook (7th Edition):
Panitantum, Napong. “Ultra-low-energy transmitters for battery-free wireless sensor networks.” 2011. Web. 04 Mar 2021.
Vancouver:
Panitantum N. Ultra-low-energy transmitters for battery-free wireless sensor networks. [Internet] [Doctoral dissertation]. Oregon State University; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1957/21887.
Council of Science Editors:
Panitantum N. Ultra-low-energy transmitters for battery-free wireless sensor networks. [Doctoral Dissertation]. Oregon State University; 2011. Available from: http://hdl.handle.net/1957/21887

University of Illinois – Urbana-Champaign
2.
Lu, Dao.
K-hot pipelining.
Degree: MS, Electrical & Computer Engr, 2016, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/93032
► Computing systems in almost every application domain now support techniques to trade off power and performance. Such techniques are used to enforce power and thermal…
(more)
▼ Computing systems in almost every application domain now support techniques to trade off power and performance. Such techniques are used to enforce power and thermal constraints, manage power and thermal budgets and respond to temperature and aging. Unfortunately, many of the current techniques are limited in the dynamic range they provide and scale poorly with technology. Techniques that can supplement or replace current techniques are needed. We propose k-hot pipelining, a novel technique to support multiple power-performance points in a processor. The key idea is to provide power and clock to only k stages of an m-stage pipeline (k < m); the k stages to be powered on change as instructions flow through the pipeline. Since the remaining m − k stages do not consume power, the technique results in power savings at the expense of performance. k-hot pipelining can be software or hardware-controlled, workload-agnostic or workload-adaptive, and can be used to provide power-performance points not supported by existing techniques. For one implementation of k-hot pipelining, we show that up to 49.9% power reduction is possible over the baseline design. Power reduction is up to 47% over the lowest power point supported by DVFS.
Advisors/Committee Members: Kumar, Rakesh (advisor).
Subjects/Keywords: Low-Energy and Low-Power Technologies; Microarchitecture
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APA ·
Chicago ·
MLA ·
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to Zotero / EndNote / Reference
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APA (6th Edition):
Lu, D. (2016). K-hot pipelining. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/93032
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lu, Dao. “K-hot pipelining.” 2016. Thesis, University of Illinois – Urbana-Champaign. Accessed March 04, 2021.
http://hdl.handle.net/2142/93032.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lu, Dao. “K-hot pipelining.” 2016. Web. 04 Mar 2021.
Vancouver:
Lu D. K-hot pipelining. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2016. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2142/93032.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lu D. K-hot pipelining. [Thesis]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/93032
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Luleå University of Technology
3.
Martinez, Lisandro.
Space radiation analysis : radiation effects and particle interaction outside Earth Magnetosphere using GRAS and GEANT4.
Degree: 2009, Luleå University of Technology
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48735
► Detailed analyses of galactic cosmic rays (GCR), solar proton events (SPE), and solar fluence effects have been conducted using SPENVIS and CREME96 data files…
(more)
▼ Detailed analyses of galactic cosmic rays (GCR), solar proton events (SPE), and solar fluence effects have been conducted using SPENVIS and CREME96 data files for particle flux outside the Earth’s magnetosphere. The simulation was conducted using GRAS, a European Space Agency (ESA) software based on GEANT4. Dose, dose equivalent and equivalent dose have been calculated as well as secondary particle effects and GCR energy spectrum. The results are based on geometrical models created to represent the International Space Station (ISS) structure and the TransHab structure. The physics models used are included in GEANT4 and validation was conducted to validate the data. The Bertini cascade model was used to simulate the hadronic reactions as well as the GRAS standard electromagnetic package to simulate the electromagnetic effects. The calculated total dose effects, equivalent dose and dose equivalent indicate the risk and effects that space radiation could have on the crew, large amounts of radiation are expected to be obtained by the crew according to the results. The shielding comparison between ISS and TransHab indicate that a tradeoff between the two will have to be made, since the first has a higher protective ratio compared to the TransHab: on the other hand the second one is more flexible and could eventually become a larger structure. The GCRs effects upon the structure are found to be comparable to experimental data.
Validerat; 20101217 (root)
Subjects/Keywords: Technology; Space Science; technology; radiation; space radiation; space; physics; cancer; GEANT4; GRAS; ICRU sphere; AG: Antigravity; ALARA: As Low As Reasonably Achievable; ASTAR: stopping power and range tables for helium ions; BERT: Bertini Cascade Model; BNTR: Bimodal Nuclear Thermal Rocket; CERN: European Organization for Nuclear Research; CHIPS: Chiral Invariant Phase Space; CPU: Central Processing Unit; CREME96: Cosmic Ray Effects on Micro Electronics; DOSTEL: DOSimetry TELescopes; ESA: European Space Agency; GCR: Galactic Cosmic Rays; GDML: Geometry Description Markup Language; GEANT4: toolkit for the simulation of the passage of; particles through matter; GNC: Guidance Navigation and Control; GRAS: Geant4 Radiation Analysis for Space; HEP: High Energy Parameterized; ICRU: International Commission on Radiation Units and; Measurements; IMF: Interplanetary Magnetic Field; IMLEO: Initial Mass in Low Earth Orbit; INFI: Instituto Natzionale di Fisica Nuclear); ISP: Specific Impulse; ISS: International Space Station; JPL: Jet Propulsion Laboratory; LEO: Low Earth Orbit; LEP: Low Energy Parameterized; MPD: Magneto Plasma Dynamics; MULASSIS: MUlti‐:LAyered Shielding Simulation Software; NASA: National Aeronautics and Space Administration; NCRP: National Council of Radiation Protection; NEP: Nuclear Electric Propulsion; NERVA: Nuclear Engine Rocket Vehicle Application; NIST: National Institute of Standards and Technology; NTR: Nuclear Thermal Rocket; PSTAR: stopping power and range tables for protons; QGS: Quark Gluon String; S/C: Spacecraft; SPE: Solar Proton Events; SEP: Solar Electric Propulsion; SPENVIS: Space Environment Information System; TEPC: Tissue Equivalent Proportional Counter; TMI: Trans Mars Insertion; TPS: Thermal Protection System; Teknik
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Martinez, L. (2009). Space radiation analysis : radiation effects and particle interaction outside Earth Magnetosphere using GRAS and GEANT4. (Thesis). Luleå University of Technology. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48735
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Martinez, Lisandro. “Space radiation analysis : radiation effects and particle interaction outside Earth Magnetosphere using GRAS and GEANT4.” 2009. Thesis, Luleå University of Technology. Accessed March 04, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48735.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Martinez, Lisandro. “Space radiation analysis : radiation effects and particle interaction outside Earth Magnetosphere using GRAS and GEANT4.” 2009. Web. 04 Mar 2021.
Vancouver:
Martinez L. Space radiation analysis : radiation effects and particle interaction outside Earth Magnetosphere using GRAS and GEANT4. [Internet] [Thesis]. Luleå University of Technology; 2009. [cited 2021 Mar 04].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48735.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Martinez L. Space radiation analysis : radiation effects and particle interaction outside Earth Magnetosphere using GRAS and GEANT4. [Thesis]. Luleå University of Technology; 2009. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-48735
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rochester Institute of Technology
4.
Fitzgerald, Brendan.
Drowsy cache partitioning for reduced static and dynamic energy in the cache hierarchy.
Degree: Computer Engineering, 2012, Rochester Institute of Technology
URL: https://scholarworks.rit.edu/theses/4600
► Power consumption in computing today has lead the industry towards energy efficient computing. As transistor technology shrinks, new techniques have to be developed to keep…
(more)
▼ Power consumption in computing today has lead the industry towards
energy efficient computing. As transistor technology shrinks, new techniques have to be developed to keep leakage current, the dominant portion of overall power consumption, to a minimum. Due to the large amount of transistors devoted to the cache hierarchy, the cache provides an excellent avenue to dramatically reduce power usage. The inherent danger with techniques that save power can negatively effect the primary reason for the inclusion of the cache, performance.
This thesis work proposes a modification to the cache hierarchy that dramatically saves power with only a slight reduction in performance. By taking advantage of the overwhelming preference of memory accesses to the most recently used blocks, these blocks are placed into a small, fast access A partition. The rest of the cache is put into a drowsy mode, a state preserving technique that reduces leakage power within the remaining portion of the cache. This design was implemented within a private, second level cache that achieved an average of almost 20% dynamic
energy savings and an average of nearly 45% leakage
energy savings. These savings were attained while incurring an average performance penalty of only 2%.
Advisors/Committee Members: Alarcon, Sonia.
Subjects/Keywords: Cache; Energy; Low-power
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fitzgerald, B. (2012). Drowsy cache partitioning for reduced static and dynamic energy in the cache hierarchy. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/4600
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Fitzgerald, Brendan. “Drowsy cache partitioning for reduced static and dynamic energy in the cache hierarchy.” 2012. Thesis, Rochester Institute of Technology. Accessed March 04, 2021.
https://scholarworks.rit.edu/theses/4600.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Fitzgerald, Brendan. “Drowsy cache partitioning for reduced static and dynamic energy in the cache hierarchy.” 2012. Web. 04 Mar 2021.
Vancouver:
Fitzgerald B. Drowsy cache partitioning for reduced static and dynamic energy in the cache hierarchy. [Internet] [Thesis]. Rochester Institute of Technology; 2012. [cited 2021 Mar 04].
Available from: https://scholarworks.rit.edu/theses/4600.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Fitzgerald B. Drowsy cache partitioning for reduced static and dynamic energy in the cache hierarchy. [Thesis]. Rochester Institute of Technology; 2012. Available from: https://scholarworks.rit.edu/theses/4600
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Linköping University
5.
Hinrichsen, Oscar.
An Evaluation of Network Protocols for Bluetooth Low Energy Mesh Networks.
Degree: Communication Systems, 2015, Linköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-122551
► Internet of Things (IoT) is a scenario that theorizes objects and people as potential nodes in an ever-growing wireless network. This idea pushes the…
(more)
▼ Internet of Things (IoT) is a scenario that theorizes objects and people as potential nodes in an ever-growing wireless network. This idea pushes the development of low-cost wireless technologies that can run on portable power sources for months, or even years. One candidate technique that has shown promising results in this area thru the last years is BluetoothLow Energy (BLE). This thesis studies various techniques to enable and maintain large scale mesh networks over BLE communication. The initial study puts focus on an existing flooding based BLE mesh protocol. The thesis later presents an improved protocol that reduces power consumption with respect to the packet delivery ratio. Other enhancements which are added to the improved protocol are a self-adapting procedure and a packet routing algorithm. Simulations show that the improved protocol can save up to 50 % of the power consumption for a device, compared to the original protocol.
Sakernas Internet (IoT) är ett scenario som skisserar objekt och människor som potentiella noder i ett ständigt växande trådlöst nätverk. Denna vision driver utvecklingen av trådlösa lågkostnadsteknologier som kan köras på portabla strömkällor i flera månader. En kandiderande teknik som har visat goda resultat inom detta område är Bluetooth Low Energy (BLE). Detta uppsatsarbete studerar flera tekniker för att möjliggöra och upprätthålla storskaliga meshnätverk över BLE-kommunikation. Den inledande studien granskar ett existerande översvämningsbaserat meshprotokoll för BLE. Uppsatsarbetet presenterar därefter ett förbättrat protokoll som reducerar strömförbrukningen med avseende på kvoten mellan antalet mottagna paket genom antalet skickade paket. Ytterliggare upprustningar som tillkommer i det förbättrade protokollet är en procedur för självanpassning, samt en algorithm för dirigering av paket. Simuleringar visar att det förbättrade protokollet kan spara upp till 50 % av strömkonsumptionen för en enhet, jämfört med originalprotokollet.
Subjects/Keywords: Bluetooth Low Energy; Mesh Networking
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hinrichsen, O. (2015). An Evaluation of Network Protocols for Bluetooth Low Energy Mesh Networks. (Thesis). Linköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-122551
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hinrichsen, Oscar. “An Evaluation of Network Protocols for Bluetooth Low Energy Mesh Networks.” 2015. Thesis, Linköping University. Accessed March 04, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-122551.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hinrichsen, Oscar. “An Evaluation of Network Protocols for Bluetooth Low Energy Mesh Networks.” 2015. Web. 04 Mar 2021.
Vancouver:
Hinrichsen O. An Evaluation of Network Protocols for Bluetooth Low Energy Mesh Networks. [Internet] [Thesis]. Linköping University; 2015. [cited 2021 Mar 04].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-122551.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hinrichsen O. An Evaluation of Network Protocols for Bluetooth Low Energy Mesh Networks. [Thesis]. Linköping University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-122551
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Tech
6.
Ji, Yanyan.
A numerical study of cardiac arrhythmia and defibrillation validated by experiments.
Degree: PhD, Physics, 2018, Georgia Tech
URL: http://hdl.handle.net/1853/60739
► Defibrillation is termination of arrhythmias by altering the transmembrane voltage through the delivery of electric shocks. Debates on the mechanisms behind defibrillations, however, have never…
(more)
▼ Defibrillation is termination of arrhythmias by altering the transmembrane voltage through the delivery of electric shocks. Debates on the mechanisms behind defibrillations, however, have never ceased. More recent studies affirmed the contribution of inhomogeneities to depolarization in tissues during a defibrillation shock, stating the heterogeneities, such as vessels and bundles, which have different electrical conductivities than cardiac tissue, serve as virtual electrodes during an electric shock, creating excitations in tissues far away from the anode and cathode.
Low energy anti-fibrillation pacing (LEAP) has been suggested as an alternative method to traditional defibrillation method, which applies a strong electric pulse to terminate the arrhythmia. LEAP delivers multiple
low amplitude electric shocks through field electrodes close to, or inside the tissue. The main goal of this thesis is to investigate the mechanism of LEAP and to suggest ways to improve it. The main finding is that LEAP works by gradually synchronizing the electric activity to the same frequency through each additional shock. Because the tissue is synchronized to the same frequency, both depolarization and repolarization are synchronized and additional shocks will not restart arrhythmia. Modified Kuramoto phase diagrams showed that, during arrhythmias, phase is relatively evenly distributed, and once LEAP is applied, the phase over the domain is increasingly focused with each shock. To further quantify this synchronicity, we calculated the fraction of tissue excited (FTE) as a function of time. The FTE peak progressively increases to one with each pulse for successful LEAP and its derivative indicates how fast the tissue synchronizes. In contrast, during one-shock defibrillation, the FTE upstroke is much slower compared to LEAP, indicating that all cells are eventually excited but not at the same time. Therefore, the mechanism of one-shock defibrillation is not through synchronization but rather by resetting all cells to an excited state, which requires the use of stronger electrical shocks, as some cells are less excitable than the others due to the repolarization gradients during fibrillation. Numerical simulations in this study suggested some ways to improve LEAP by adjusting the pacing period as well as the shock timings. The success rate is higher when the pacing cycle length is close to the dominant period of the arrhythmia and when the first shock was applied at the downslope of the fraction of tissue excited (FTE) curve.
Advisors/Committee Members: Fenton, Flavio (advisor), Grigoriev, Roman (committee member), Sponberg, Simon (committee member), Cherry, Elizabeth (committee member), Gray, RIchard (committee member).
Subjects/Keywords: Low-energy defibrillation; Heterogeneity; Arrhythmia
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ji, Y. (2018). A numerical study of cardiac arrhythmia and defibrillation validated by experiments. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/60739
Chicago Manual of Style (16th Edition):
Ji, Yanyan. “A numerical study of cardiac arrhythmia and defibrillation validated by experiments.” 2018. Doctoral Dissertation, Georgia Tech. Accessed March 04, 2021.
http://hdl.handle.net/1853/60739.
MLA Handbook (7th Edition):
Ji, Yanyan. “A numerical study of cardiac arrhythmia and defibrillation validated by experiments.” 2018. Web. 04 Mar 2021.
Vancouver:
Ji Y. A numerical study of cardiac arrhythmia and defibrillation validated by experiments. [Internet] [Doctoral dissertation]. Georgia Tech; 2018. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1853/60739.
Council of Science Editors:
Ji Y. A numerical study of cardiac arrhythmia and defibrillation validated by experiments. [Doctoral Dissertation]. Georgia Tech; 2018. Available from: http://hdl.handle.net/1853/60739
7.
Laganakou, Georgia.
What feasible macro-scale interventions could stimulate a sustainable growth in the UK housing retrofit industry? : an examination of the potential impact from supply-chain innovations on low energy retrofit of pre-1919 housing.
Degree: PhD, 2020, University of Northampton
URL: https://pure.northampton.ac.uk/en/studentTheses/ab0143cd-feea-4876-bd25-64ff8edb36f6
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.813100
► Understanding the context for encouraging new retrofit practices to be applied to domestic housing in the UK is of crucial importance to any consideration of…
(more)
▼ Understanding the context for encouraging new retrofit practices to be applied to domestic housing in the UK is of crucial importance to any consideration of what could impact on energy reduction and domestic housing costs within the wider UK housing market. The thesis reviews attempts made to stimulate the retrofit market and the struggle of the industry to keep up with the stop/start UK legislation and changes of funding mechanisms on energy reduction policies. It then focuses on the influence of voluntary standards such as Passive House and its Whole-House retrofit standard, EnerPHit along with current innovations incorporating offsite mechanisms in their retrofit delivery. Considering lessons learned from previous attempts, the thesis examines what outcomes these relatively recent approaches could have within the UK housing retrofit “evolution” and specifically when applied on the most challenging of the UK’s housing stock of the pre-1919 typologies. Wide research has been done on either housing retrofit or offsite construction in new-build but due to the relatively recent implementation of offsite in retrofit a research gap was identified considering their future applicability in the UK’s older stock and by extension on the retrofit market and regulation. With a socio-technical methodology approach incorporating energy and cost modelling along with the uptake of a survey focusing on the construction industry’s representatives, the thesis examined the feasible complexities and opportunities of these approaches on pre-1919 typologies through the prism of regulation, technical complications, financial opportunities and social barriers and incentives. The findings from this research showed that there is a variety of advantages and disadvantages in adopting deep retrofit with offsite mechanisms that stretch beyond straightforward energy and cost reductions and are dependable on typology, location and offsite measure applied. Equally important the research contributed on identifying how these mechanisms could respond to the emerging regulations on quality control for retrofit delivery and provides an insight on of the policy and practical implications in the adoption of such measures.
Subjects/Keywords: low energy; housing; retrofit
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Laganakou, G. (2020). What feasible macro-scale interventions could stimulate a sustainable growth in the UK housing retrofit industry? : an examination of the potential impact from supply-chain innovations on low energy retrofit of pre-1919 housing. (Doctoral Dissertation). University of Northampton. Retrieved from https://pure.northampton.ac.uk/en/studentTheses/ab0143cd-feea-4876-bd25-64ff8edb36f6 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.813100
Chicago Manual of Style (16th Edition):
Laganakou, Georgia. “What feasible macro-scale interventions could stimulate a sustainable growth in the UK housing retrofit industry? : an examination of the potential impact from supply-chain innovations on low energy retrofit of pre-1919 housing.” 2020. Doctoral Dissertation, University of Northampton. Accessed March 04, 2021.
https://pure.northampton.ac.uk/en/studentTheses/ab0143cd-feea-4876-bd25-64ff8edb36f6 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.813100.
MLA Handbook (7th Edition):
Laganakou, Georgia. “What feasible macro-scale interventions could stimulate a sustainable growth in the UK housing retrofit industry? : an examination of the potential impact from supply-chain innovations on low energy retrofit of pre-1919 housing.” 2020. Web. 04 Mar 2021.
Vancouver:
Laganakou G. What feasible macro-scale interventions could stimulate a sustainable growth in the UK housing retrofit industry? : an examination of the potential impact from supply-chain innovations on low energy retrofit of pre-1919 housing. [Internet] [Doctoral dissertation]. University of Northampton; 2020. [cited 2021 Mar 04].
Available from: https://pure.northampton.ac.uk/en/studentTheses/ab0143cd-feea-4876-bd25-64ff8edb36f6 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.813100.
Council of Science Editors:
Laganakou G. What feasible macro-scale interventions could stimulate a sustainable growth in the UK housing retrofit industry? : an examination of the potential impact from supply-chain innovations on low energy retrofit of pre-1919 housing. [Doctoral Dissertation]. University of Northampton; 2020. Available from: https://pure.northampton.ac.uk/en/studentTheses/ab0143cd-feea-4876-bd25-64ff8edb36f6 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.813100

Texas A&M University
8.
Pankonien, Alexander Morgan.
Piezoelectric Artificial Kelp: Experimentally Validated Parameter Optimization of a Quasi-Static, Flow-Driven Energy Harvester.
Degree: MS, Aerospace Engineering, 2011, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10099
► Piezoelectric energy harvesting is the process of taking an external mechanical input and converting it directly into electrical energy via the piezoelectric effect. To determine…
(more)
▼ Piezoelectric
energy harvesting is the process of taking an external mechanical input and converting it directly into electrical
energy via the piezoelectric effect. To determine the power created by a piezoelectric
energy harvester, a specific application with defined input and design constraints must first be chosen. The following thesis established a concept design of a hydrokinetic
energy harvesting system, the piezoelectric artificial kelp (PAK), which uses piezoelectric materials to harvest coastal ocean waves while having a beneficial impact on the surrounding environment. The harvester design mimics the configuration of sea-kelp, a naturally occurring plant that anchors to the ocean floor and extends into the water column. Underwater currents caused by wave-action result in periodic oscillations in the kelp. In order to determine the average power generated by this design concept, predictive tools were devised that allowed for the determination of the optimized average power produced by the piezoelectric
energy harvester. For a stiff
energy harvester, the linear differential equations were analytically solved to find an equation for the average power generated as a function of design parameters. These equations were used to compare the effect on power output of the design configuration and piezoelectric material choice between a piezopolymer (PVDF) and a piezoceramic (PZT). The homogeneous bimorph was found to have the optimal design configuration and it was shown that a harvester constructed using PVDF would produce approximately 1.6 times as much power as one using PZT. For a flexible
energy harvester, an iterative nonlinear solution technique using an assumed polynomial solution for the local curvature of the
energy harvester was used to verify and extend the analytic solutions to large deflections. An
energy harvester was built using off-the-shelf piezoelectric elements and tested in a wave tank facility to validate experimentally the voltage and average power predicted by the analytical solution. The iterative code showed the PAK harvester to produce volumetric power on the order of other
energy harvesting concepts (17.8 micro [mu]W/cm³). Also, a full-scale PAK harvester approximately ten meters long in typical wave conditions was found to produce approximately one watt of power.
Advisors/Committee Members: Ounaies, Zoubeida (advisor), Randall, Robert (committee member), Hurtado, John (committee member).
Subjects/Keywords: Piezoelectric; Low Frequency; Energy Harvesting; Alternative Energy
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APA (6th Edition):
Pankonien, A. M. (2011). Piezoelectric Artificial Kelp: Experimentally Validated Parameter Optimization of a Quasi-Static, Flow-Driven Energy Harvester. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10099
Chicago Manual of Style (16th Edition):
Pankonien, Alexander Morgan. “Piezoelectric Artificial Kelp: Experimentally Validated Parameter Optimization of a Quasi-Static, Flow-Driven Energy Harvester.” 2011. Masters Thesis, Texas A&M University. Accessed March 04, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10099.
MLA Handbook (7th Edition):
Pankonien, Alexander Morgan. “Piezoelectric Artificial Kelp: Experimentally Validated Parameter Optimization of a Quasi-Static, Flow-Driven Energy Harvester.” 2011. Web. 04 Mar 2021.
Vancouver:
Pankonien AM. Piezoelectric Artificial Kelp: Experimentally Validated Parameter Optimization of a Quasi-Static, Flow-Driven Energy Harvester. [Internet] [Masters thesis]. Texas A&M University; 2011. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10099.
Council of Science Editors:
Pankonien AM. Piezoelectric Artificial Kelp: Experimentally Validated Parameter Optimization of a Quasi-Static, Flow-Driven Energy Harvester. [Masters Thesis]. Texas A&M University; 2011. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-10099

Delft University of Technology
9.
Pronk, Anne (author).
Combinations of Low Energy Trajectories for a Lunar L2 mission.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:325b9609-7b2e-46cf-b4e7-02051082a0d2
► Measurements in the frequency range below 30 MHz, key to a better understanding of the origins of our universe, are one of the last unexplored…
(more)
▼ Measurements in the frequency range below 30 MHz, key to a better understanding of the origins of our universe, are one of the last unexplored areas of radio astronomy.
Low frequency measurements suffer greatly from disturbance from man-made signals. Therefore, satellite missions are proposed which use the Moon as a shield from these disturbances, by making use of the Earth-Moon L2 Lagrange point. Such missions require large numbers of small satellites. One of the challenges for these missions is getting the satellites into their destination orbit with a very small Delta V budget. This research looks into the use of
low energy trajectories for such a mission transfer trajectory.
Low energy trajectories are found on the invariant manifolds of the CR3BP and may be classified into several categories. Different combinations of these categories lead to different types of transfer trajectories. Four possible combinations were considered in this research, and compared to see which one best suits a small satellite mission to the Earth-Moon L2 Lagrange point. One combination has been previously researched in literature, the other three are new options for a transfer to the Earth-Moon L2. The approach known from literature resulted in transfers with a required Delta V of down to 28 m/s. Using one of the other approaches, this could be reduced to 9 m/s. Additionally, one of the approaches allows for a station-keeping orbit around the Sun-Earth L2 point, which does not only make scheduling of the transfer easier, but also allows for additional mission objectives. These are encouraging results, showing that possibilities exist for the use of
low energy trajectories for a lunar L2 mission.
Advisors/Committee Members: Root, Bart (mentor), Visser, Pieter (graduation committee), Bouwmeester, Jasper (graduation committee), Topputo, Francesco (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Low Energy Trajectory; Low Energy Transfer; Lunar; Lagrange; L2
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Chicago ·
MLA ·
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CSE |
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APA (6th Edition):
Pronk, A. (. (2018). Combinations of Low Energy Trajectories for a Lunar L2 mission. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:325b9609-7b2e-46cf-b4e7-02051082a0d2
Chicago Manual of Style (16th Edition):
Pronk, Anne (author). “Combinations of Low Energy Trajectories for a Lunar L2 mission.” 2018. Masters Thesis, Delft University of Technology. Accessed March 04, 2021.
http://resolver.tudelft.nl/uuid:325b9609-7b2e-46cf-b4e7-02051082a0d2.
MLA Handbook (7th Edition):
Pronk, Anne (author). “Combinations of Low Energy Trajectories for a Lunar L2 mission.” 2018. Web. 04 Mar 2021.
Vancouver:
Pronk A(. Combinations of Low Energy Trajectories for a Lunar L2 mission. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Mar 04].
Available from: http://resolver.tudelft.nl/uuid:325b9609-7b2e-46cf-b4e7-02051082a0d2.
Council of Science Editors:
Pronk A(. Combinations of Low Energy Trajectories for a Lunar L2 mission. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:325b9609-7b2e-46cf-b4e7-02051082a0d2

Universidad de Chile
10.
Rodríguez Moreno, Pedro Ángel.
Parallel lepp-based algorithms for the generation and refinement of triangulations.
Degree: 2015, Universidad de Chile
URL: http://repositorio.uchile.cl/handle/2250/135082
► La generación y refinamiento de mallas son temas de gran interés en aplicaciones tales como simulación de fenómenos físicos mediante el uso de los métodos…
(more)
▼ La generación y refinamiento de mallas son temas de gran interés en aplicaciones tales como simulación de fenómenos físicos mediante el uso de los métodos de elementos finitos, en aplicaciones CAD, modelado geométrico y mallas geométricas. Una malla es un conjunto de elementos geométricos (polígonos o poliedros) que no se superponen, los cuales están conectados por medio de vértices, aristas y caras, que se usan para aproximar dominios geométricos. Los algoritmos de refinamiento producen mallas cada vez más finas para discretizar dominios complejos, representar objetos con topologías arbitrarias y también superficies con formas complejas.
En esta tesis se estudió la paralelización de algoritmos de refinamiento basados en el concepto de Lepp para sistemas multicore (multinúcleo) y sistemas distribuidos. Se consideraron dos problemas: (1) refinamiento de mallas de buena calidad: aquí dada una malla de entrada de buena calidad, ésta es iterativa y localmente refinada (de acuerdo a un requerimiento externo a la
aplicación) para producir una malla final de calidad análoga a la inicial; (2) refinamiento de
triangulaciones Delaunay de mala calidad, donde dada una triangulación Delaunay de entrada de mala calidad (con una geometría dada), deseamos producir una triangulación Delaunay de buena calidad y de tamaño óptimo.
Algoritmos basados en el concepto de Lepp son algoritmos refinamiento por la arista más larga mejorados donde el refinamiento de cualquier triángulo t tiene asociado un Lepp(t).
En el contexto de los sistemas multicore se desarrollaron algoritmos Lepp-bisección multicore eficientes y escalables para el refinamiento de mallas de 2 y 3 dimensiones. También se desarrolló un algoritmo Lepp-Delaunay multicore para la generación de mallas Delaunay de buena calidad.
En el contexto de los sistemas de memoria distribuida se desarrolló un algoritmo Lepp-bisección distribuido para el refinamiento de mallas de 2 dimensiones donde la malla inicial es subdividida dentro de un conjunto de submallas (o subparticiones), las cuales son distribuidas entre los procesadores. También se desarrolló una estrategia eficiente para garantizar que se obtiene una malla final válida (conforme) en las interfaces de submallas vecinas.
Se realizaron evaluaciones empíricas de los algoritmos paralelos sobre arquitecturas multicore y sistemas de memoria distribuida que muestran que los algoritmos paralelos tienen buen desempeño.
Subjects/Keywords: Algoritmos computacionales; Triangulación; Lep-bisección
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Rodríguez Moreno, P. . (2015). Parallel lepp-based algorithms for the generation and refinement of triangulations. (Thesis). Universidad de Chile. Retrieved from http://repositorio.uchile.cl/handle/2250/135082
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Rodríguez Moreno, Pedro Ángel. “Parallel lepp-based algorithms for the generation and refinement of triangulations.” 2015. Thesis, Universidad de Chile. Accessed March 04, 2021.
http://repositorio.uchile.cl/handle/2250/135082.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Rodríguez Moreno, Pedro Ángel. “Parallel lepp-based algorithms for the generation and refinement of triangulations.” 2015. Web. 04 Mar 2021.
Vancouver:
Rodríguez Moreno P. Parallel lepp-based algorithms for the generation and refinement of triangulations. [Internet] [Thesis]. Universidad de Chile; 2015. [cited 2021 Mar 04].
Available from: http://repositorio.uchile.cl/handle/2250/135082.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Rodríguez Moreno P. Parallel lepp-based algorithms for the generation and refinement of triangulations. [Thesis]. Universidad de Chile; 2015. Available from: http://repositorio.uchile.cl/handle/2250/135082
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Houston
11.
Burroughs, Rosalind Mouton 1965-.
UNDERSTANDING LIMITED ENGLISH PROFICIENT STUDENT ACHIEVEMENT IN READING AS A PREDICTOR OF AYP REPORTING STATUS AND THE IMPLICATIONS FOR EFFECTIVE SCHOOL LEADERSHIP.
Degree: EdD, Professional Leadership, 2013, University of Houston
URL: http://hdl.handle.net/10657/1030
► The 2010-2011 Texas Education Agency’s Academic Excellence Indicator System (AEIS) reported 16.9% of all students tested on Texas’ state accountability test were identified as Limited…
(more)
▼ The 2010-2011 Texas Education Agency’s Academic Excellence Indicator System (AEIS) reported 16.9% of all students tested on Texas’ state accountability test were identified as Limited English Proficient (AEIS, 2011). According to this study’s findings,
LEP students made up 28.9% of the sample population’s test takers on the 2011 TAKS Reading test(in English) ; slightly lower than the district’s percentage (36%) of
LEP students tested.
For schools and districts with large
LEP populations, understanding their unique needs is essential for progress towards federal expectations for Adequately Yearly Progress (AYP). This study reviewed
LEP students’ (ESL and Bilingual) academic performance (passing rates) and described its findings. Data reports such as TELPAS, AEIS, and AYP were used to draw conclusions regarding
LEP students’ progress in their Language Proficiencies. . If leaders’ at the district level do not look at the results for every grade level, they will not likely identify trends that lead to individual campuses failing to meet AYP requirements. As unsuccessful students transition from one grade level to the next, achievement gaps will widen resulting in an increase in
LEP drop-outs.
The study concluded with recommendations and provided implications for further studies. First, there was no significant difference between the passing rate of ESL students and the Bilingual students tested. Second, differences exist among the number of years of schooling a student had and their passing rate on the state achievement test in reading. As students’ experiences in U.S. schools increases, success on achievement test increased. The final conclusion of this study noted found that the most successful
LEP students were those whose language proficiencies were significantly advanced.
Advisors/Committee Members: Emerson, Michael W. (advisor), MacNeil, Angus J. (advisor), Fernandez, Julie (committee member), Busch, Steven D. (committee member), Borneman, Robert C. (committee member), Garcia, Katherine (committee member).
Subjects/Keywords: ESL; LEP; AYP; ELL; AYP; LEP Reading Accountability; Professional leadership
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Burroughs, R. M. 1. (2013). UNDERSTANDING LIMITED ENGLISH PROFICIENT STUDENT ACHIEVEMENT IN READING AS A PREDICTOR OF AYP REPORTING STATUS AND THE IMPLICATIONS FOR EFFECTIVE SCHOOL LEADERSHIP. (Doctoral Dissertation). University of Houston. Retrieved from http://hdl.handle.net/10657/1030
Chicago Manual of Style (16th Edition):
Burroughs, Rosalind Mouton 1965-. “UNDERSTANDING LIMITED ENGLISH PROFICIENT STUDENT ACHIEVEMENT IN READING AS A PREDICTOR OF AYP REPORTING STATUS AND THE IMPLICATIONS FOR EFFECTIVE SCHOOL LEADERSHIP.” 2013. Doctoral Dissertation, University of Houston. Accessed March 04, 2021.
http://hdl.handle.net/10657/1030.
MLA Handbook (7th Edition):
Burroughs, Rosalind Mouton 1965-. “UNDERSTANDING LIMITED ENGLISH PROFICIENT STUDENT ACHIEVEMENT IN READING AS A PREDICTOR OF AYP REPORTING STATUS AND THE IMPLICATIONS FOR EFFECTIVE SCHOOL LEADERSHIP.” 2013. Web. 04 Mar 2021.
Vancouver:
Burroughs RM1. UNDERSTANDING LIMITED ENGLISH PROFICIENT STUDENT ACHIEVEMENT IN READING AS A PREDICTOR OF AYP REPORTING STATUS AND THE IMPLICATIONS FOR EFFECTIVE SCHOOL LEADERSHIP. [Internet] [Doctoral dissertation]. University of Houston; 2013. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10657/1030.
Council of Science Editors:
Burroughs RM1. UNDERSTANDING LIMITED ENGLISH PROFICIENT STUDENT ACHIEVEMENT IN READING AS A PREDICTOR OF AYP REPORTING STATUS AND THE IMPLICATIONS FOR EFFECTIVE SCHOOL LEADERSHIP. [Doctoral Dissertation]. University of Houston; 2013. Available from: http://hdl.handle.net/10657/1030

Virginia Tech
12.
Hedayati, Mahsa.
Low Carbon Architecture: New Approach Toward Sustainability in Relation to Existing Buildings.
Degree: M. Arch., Not found, 2020, Virginia Tech
URL: http://hdl.handle.net/10919/99968
► Global warming as a problem of the twenty-first-century increase concentrations of greenhouse gases in the atmosphere due to human actions like burning fossil fuels. The…
(more)
▼ Global warming as a problem of the twenty-first-century increase concentrations of greenhouse gases in the atmosphere due to human actions like burning fossil fuels. The built environment puts the greatest pressure on the natural environment of all industrial parts, and it has a fundamental role to manage the environment sustainably. Total life cycle
energy, embodied and operational
energy over the lifetime of the buildings, creates significant environmental impacts through the production of CO2. Embodied
energy is the whole amount of
energy applied to extract the raw materials, manufacture, transport, install, and use the product across its life cycle. Assessments of the embodied
energy of historic and existing buildings are helping to mitigate future damage to resources. These buildings already exist, which indicates that the
energy consumed to build them has been applied and the carbon associated with their construction has been released.
The greenest buildings are ones that are already built. They are inherently sustainable and can be retrofitted to become more
energy efficient. Specifically, this design engages with an abandoned late nineteenth-century bank building in Philadelphia and transforms it into a high-performance building that is prepared for long-term use. For the immediate next use, the project creates a work environment and in a new vertical expansion, residential units.
In the abandoned bank, there are some aspects of this building that are near-permanent and define its characters, such as brick walls with masonry ornament, two bank vaults, Wissahickon Schist wall, and ceiling trusses. This thesis explores the new approaches to leverage the embodied
energy of the permanent parts of the abandoned bank and transform it into a high-performance building. This is achieved through various means such as providing localized heating and cooling by using a radiation and conduction system, the use of phase-change material for cooling the process water, solar hot water, creating drinking water via a solar still in the skylight and distilled water from radiant cooling surfaces. In the new construction, a thermal switch facade and double-skin facade for the residential units are proposed, along with providing flexible space with thick mobile interior wall units.
Advisors/Committee Members: Emmons, Paul F. (committeechair), Sattler, Meredith Jaye (committee member), Piedmont-Palladino, Susan C. (committee member).
Subjects/Keywords: Energy; sustainability; Embodied Energy; Operational Energy; Low Carbon; Existing Buildings
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hedayati, M. (2020). Low Carbon Architecture: New Approach Toward Sustainability in Relation to Existing Buildings. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/99968
Chicago Manual of Style (16th Edition):
Hedayati, Mahsa. “Low Carbon Architecture: New Approach Toward Sustainability in Relation to Existing Buildings.” 2020. Masters Thesis, Virginia Tech. Accessed March 04, 2021.
http://hdl.handle.net/10919/99968.
MLA Handbook (7th Edition):
Hedayati, Mahsa. “Low Carbon Architecture: New Approach Toward Sustainability in Relation to Existing Buildings.” 2020. Web. 04 Mar 2021.
Vancouver:
Hedayati M. Low Carbon Architecture: New Approach Toward Sustainability in Relation to Existing Buildings. [Internet] [Masters thesis]. Virginia Tech; 2020. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10919/99968.
Council of Science Editors:
Hedayati M. Low Carbon Architecture: New Approach Toward Sustainability in Relation to Existing Buildings. [Masters Thesis]. Virginia Tech; 2020. Available from: http://hdl.handle.net/10919/99968

Royal Holloway, University of London
13.
Muciaccia, Gabriele.
Polynomial kernels for graph and hypergraph optimisation problems.
Degree: PhD, 2014, Royal Holloway, University of London
URL: https://pure.royalholloway.ac.uk/portal/en/publications/polynomial-kernels-for-graph-and-hypergraph-optimisation-problems(4b42e005-f7ca-451e-8f5a-eed4b0da236d).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792260
► When dealing with hard problems, problems which we are not able to solve in polynomial time, it is common practice to preprocess an instance to…
(more)
▼ When dealing with hard problems, problems which we are not able to solve in polynomial time, it is common practice to preprocess an instance to reduce its size and make the task of solving it easier. Parameterized Complexity offers a theoretical framework to prove the efficiency of preprocessing algorithms, which are called kernelizations. The underlying idea is that for every problem we identify a parameter which represents the part of the input which is 'difficult' to solve, then we try to reduce the input size and we measure the result in terms of the parameter. Especially successful kernelizations are the ones that compute a kernel whose size is bounded by a polynomial in the parameter. In this thesis we consider some combinatorial optimisation problems on graphs and hypergraphs, and we study the existence (or non-existence) of polynomial kernels for these problems. In particular, we describe a generic kernelization for a theoretical class of graph problems, which can be used to derive the existence of a polynomial kernel for many graph problems of interest.
Subjects/Keywords: Parameterized Complexity; Kernelization; graph; optimization
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Muciaccia, G. (2014). Polynomial kernels for graph and hypergraph optimisation problems. (Doctoral Dissertation). Royal Holloway, University of London. Retrieved from https://pure.royalholloway.ac.uk/portal/en/publications/polynomial-kernels-for-graph-and-hypergraph-optimisation-problems(4b42e005-f7ca-451e-8f5a-eed4b0da236d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792260
Chicago Manual of Style (16th Edition):
Muciaccia, Gabriele. “Polynomial kernels for graph and hypergraph optimisation problems.” 2014. Doctoral Dissertation, Royal Holloway, University of London. Accessed March 04, 2021.
https://pure.royalholloway.ac.uk/portal/en/publications/polynomial-kernels-for-graph-and-hypergraph-optimisation-problems(4b42e005-f7ca-451e-8f5a-eed4b0da236d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792260.
MLA Handbook (7th Edition):
Muciaccia, Gabriele. “Polynomial kernels for graph and hypergraph optimisation problems.” 2014. Web. 04 Mar 2021.
Vancouver:
Muciaccia G. Polynomial kernels for graph and hypergraph optimisation problems. [Internet] [Doctoral dissertation]. Royal Holloway, University of London; 2014. [cited 2021 Mar 04].
Available from: https://pure.royalholloway.ac.uk/portal/en/publications/polynomial-kernels-for-graph-and-hypergraph-optimisation-problems(4b42e005-f7ca-451e-8f5a-eed4b0da236d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792260.
Council of Science Editors:
Muciaccia G. Polynomial kernels for graph and hypergraph optimisation problems. [Doctoral Dissertation]. Royal Holloway, University of London; 2014. Available from: https://pure.royalholloway.ac.uk/portal/en/publications/polynomial-kernels-for-graph-and-hypergraph-optimisation-problems(4b42e005-f7ca-451e-8f5a-eed4b0da236d).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.792260

University of Waterloo
14.
Islam, Tarique.
Characterizing Hardness in Parameterized Complexity.
Degree: 2007, University of Waterloo
URL: http://hdl.handle.net/10012/3041
► Parameterized complexity theory relaxes the classical notion of tractability and allows to solve some classically hard problems in a reasonably efficient way. However, many problems…
(more)
▼ Parameterized complexity theory relaxes the classical notion of tractability and
allows to solve some classically hard problems in a reasonably efficient way. However, many problems of interest remain intractable in the context of parameterized
complexity. A completeness theory to categorize such problems has been developed
based on problems on circuits and Model Checking problems. Although a basic
machine characterization was proposed, it was not explored any further.
We develop a computational view of parameterized complexity theory based on
resource-bounded programs that run on alternating random access machines. We
develop both natural and normalized machine characterizations for the W[t] and
L[t] classes. Based on the new characterizations, we derive the basic completeness results in parameterized complexity theory, from a computational perspective. Unlike the previous cases, our proofs follow the classical approach for showing basic NP-completeness results (Cook's Theorem, in particular). We give new proofs of the Normalization Theorem by showing that (i) the computation of a resource-bounded program on an alternating RAM can be represented by instances of corre-
sponding basic parametric problems, and (ii) the basic parametric problems can be
decided by programs respecting the corresponding resource bounds. Many of the
fundamental results follow as a consequence of our new proof of the Normalization
Theorem. Based on a natural characterization of the W[t] classes, we develop new
structural results establishing relationships among the classes in the W-hierarchy, and the W[t] and L[t] classes.
Nontrivial upper-bound beyond the second level of the W-hierarchy is quite
uncommon. We make use of the ability to implement natural algorithms to show
new upper bounds for several parametric problems. We show that Subset Sum,
Maximal Irredundant Set, and Reachability Distance in Vector Addition Systems (Petri Nets) are in W[3], W[4], and W[5], respectively. In some cases, the new bounds result in new completeness results. We derive new lower bounds based on the normalized programs for the W[t] and L[t] classes.
We show that Longest Common Subsequence, with parameter the number of strings, is hard for L[t], t >= 1, and for W[SAT]. We also show that Precedence Constrained Multiprocessor Scheduling, with parameter the number of processors, is hard for L[t], t >= 1.
Subjects/Keywords: parameterized complexity
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Islam, T. (2007). Characterizing Hardness in Parameterized Complexity. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/3041
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Islam, Tarique. “Characterizing Hardness in Parameterized Complexity.” 2007. Thesis, University of Waterloo. Accessed March 04, 2021.
http://hdl.handle.net/10012/3041.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Islam, Tarique. “Characterizing Hardness in Parameterized Complexity.” 2007. Web. 04 Mar 2021.
Vancouver:
Islam T. Characterizing Hardness in Parameterized Complexity. [Internet] [Thesis]. University of Waterloo; 2007. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10012/3041.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Islam T. Characterizing Hardness in Parameterized Complexity. [Thesis]. University of Waterloo; 2007. Available from: http://hdl.handle.net/10012/3041
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Connecticut
15.
Felemban, Haitham B.
Continuous Polynomial Adaptive Estimator for Nonlinearly Parameterized Systems.
Degree: MS, Mechanical Engineering, 2014, University of Connecticut
URL: https://opencommons.uconn.edu/gs_theses/543
► This the sis present the continuous polynomial adaptive estimator CPAE which estimates a nonlinear parameter in nonlinearly parametrized NLP system. It combines the multiple…
(more)
▼ This the sis present the continuous polynomial adaptive estimator CPAE which estimates a nonlinear parameter in nonlinearly parametrized NLP system. It combines the multiple region law with the companion adaptive system presented in [1] to come up with the CPAE. Stability is discussed and general definition of persistence of excitation PE condition is proposed for parameter convergence using the CPAE. As an application, the CPAE was successfully used to estimate the airspeed in presence of airspeed sensor failure on a developed academic aircraft model. As part of
Loss of Control Prevention through adaptive reconfiguration project supported by NASA, the IMU theory method, which estimates airspeed using data from the inertial measurement unit IMU and the global positioning system GPS, is presented and applied on the generic transport model GTM. Conclusions and future work for aforementioned topics were presented at the end of this thesis.
Advisors/Committee Members: Prof. Robert Gao and Prof. Jiong Tang, Prof. Chengyu Cao.
Subjects/Keywords: Nonlinearly Parameterized Systems Adaptive estimation
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APA (6th Edition):
Felemban, H. B. (2014). Continuous Polynomial Adaptive Estimator for Nonlinearly Parameterized Systems. (Masters Thesis). University of Connecticut. Retrieved from https://opencommons.uconn.edu/gs_theses/543
Chicago Manual of Style (16th Edition):
Felemban, Haitham B. “Continuous Polynomial Adaptive Estimator for Nonlinearly Parameterized Systems.” 2014. Masters Thesis, University of Connecticut. Accessed March 04, 2021.
https://opencommons.uconn.edu/gs_theses/543.
MLA Handbook (7th Edition):
Felemban, Haitham B. “Continuous Polynomial Adaptive Estimator for Nonlinearly Parameterized Systems.” 2014. Web. 04 Mar 2021.
Vancouver:
Felemban HB. Continuous Polynomial Adaptive Estimator for Nonlinearly Parameterized Systems. [Internet] [Masters thesis]. University of Connecticut; 2014. [cited 2021 Mar 04].
Available from: https://opencommons.uconn.edu/gs_theses/543.
Council of Science Editors:
Felemban HB. Continuous Polynomial Adaptive Estimator for Nonlinearly Parameterized Systems. [Masters Thesis]. University of Connecticut; 2014. Available from: https://opencommons.uconn.edu/gs_theses/543

University of Waterloo
16.
Subramanya, Vijay.
Graph Editing to a Given Neighbourhood Degree List is Fixed-Parameter Tractable.
Degree: 2016, University of Waterloo
URL: http://hdl.handle.net/10012/11026
► Graph editing problems have a long history and have been widely studied, with applications in biochemistry and complex network analysis. They generally ask whether an…
(more)
▼ Graph editing problems have a long history and have been widely studied, with applications in biochemistry and complex network analysis. They generally ask whether an input graph can be modified by inserting and deleting vertices and edges to a graph with the desired property. We consider the problem sc{Graph-Edit-to-NDL} (GEN) where the goal is to modify to a graph with a given neighbourhood degree list (NDL). The NDL lists the degrees of the neighbours of vertices in a graph, and is a stronger invariant than the degree sequence, which lists the degrees of vertices.
We show sc{Graph-Edit-to-NDL} is NP-complete and study its parameterized complexity. In parameterized complexity, a problem is said to be fixed-parameter tractable with respect to a parameter if it has a solution whose running time is a function that is polynomial in the input size but possibly superpolynomial in the parameter.
Golovach and Mertzios [ICSSR, 2016] studied editing to a graph with a given degree sequence and showed the problem is fixed-parameter tractable when parameterized by Δ+ℓ, where Δ is the maximum degree of the input graph and ℓ is the number of edits. We prove sc{Graph-Edit-to-NDL} is fixed-parameter tractable when parameterized by Δ+ℓ.
Furthermore, we consider a harder problem sc{Constrained-Graph-Edit-to-NDL} (CGEN) that imposes constraints on the NDLs of intermediate graphs produced in the sequence. We adapt our FPT algorithm for sc{Graph-Edit-to-NDL} to solve sc{Constrained-Graph-Edit-to-NDL}, which proves sc{Constrained-Graph-Edit-to-NDL} is also fixed-parameter tractable when parameterized by Δ+ℓ.
Our results imply that, for graph properties that can be expressed as properties of NDLs, editing to a graph with such a property is fixed-parameter tractable when parameterized by Δ+ℓ. We show that this family of graph properties includes some well-known graph measures used in complex network analysis.
Subjects/Keywords: Graph editing; Parameterized algorithms
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Subramanya, V. (2016). Graph Editing to a Given Neighbourhood Degree List is Fixed-Parameter Tractable. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/11026
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Subramanya, Vijay. “Graph Editing to a Given Neighbourhood Degree List is Fixed-Parameter Tractable.” 2016. Thesis, University of Waterloo. Accessed March 04, 2021.
http://hdl.handle.net/10012/11026.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Subramanya, Vijay. “Graph Editing to a Given Neighbourhood Degree List is Fixed-Parameter Tractable.” 2016. Web. 04 Mar 2021.
Vancouver:
Subramanya V. Graph Editing to a Given Neighbourhood Degree List is Fixed-Parameter Tractable. [Internet] [Thesis]. University of Waterloo; 2016. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/10012/11026.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Subramanya V. Graph Editing to a Given Neighbourhood Degree List is Fixed-Parameter Tractable. [Thesis]. University of Waterloo; 2016. Available from: http://hdl.handle.net/10012/11026
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan
17.
Lewis, Timothy.
Energy Efficient Algorithms in Low-Energy Wireless Sensor Networks.
Degree: PhD, Computer Science & Engineering, 2019, University of Michigan
URL: http://hdl.handle.net/2027.42/153370
► Wireless sensor networks (WSNs) consist of small autonomous processors spatially distributed, typically with the goal of gathering physical data about the environment such as temperature,…
(more)
▼ Wireless sensor networks (WSNs) consist of small autonomous processors spatially distributed, typically with the goal of gathering physical data about the environment such as temperature, air pressure, and sound. WSNs have a wide range of applications including military use, health care monitoring, and environmental sensing. Because sensors are typically battery powered, algorithms for sensor network models should not only seek to minimize runtime but also
energy utilization. Specifically, to maximize network lifetime, algorithms must minimize the
energy usage of the sensors that use the most
energy in the network.
In extremely dense networks it may be inefficient for sensors to communicate with all neighboring sensors on a consistent basis, especially in mobile wireless sensor networks (MWSNs) where the topology of the network is constantly changing. Sensors conserve
energy by going into a
low-
energy sleep state, and in our algorithms sensors will be asleep for the vast majority of the total runtime. Algorithms under these conditions face additional challenges because of the increased difficulty of coordinating between sensors. Because of the spatial nature of sensor networks, geometry problems are often of particular interest. For example, to detect outliers, data is often compared with the nearest neighboring sensors.
In this dissertation we provide algorithmic techniques designed for divide-and-conquer solutions to computational geometry problems. We provide a technique for coordinating divide-and-conquer algorithms in a single-hop setting called breadth first recursion. We use this technique to sort data and to find the convex hull. Although most WSNs are multi-hop networks, locally very dense, expansive networks resemble single-hop networks. Thus we use algorithms for single-hop networks as a building blocks for multi-hop algorithms with α-consolidation algorithms. We then provide α-consolidation algorithms for all points k-nearest neighbors, the coverage boundary, and the Voronoi diagram.
We also analyze the WSN problem of propagating data to a high-
energy base station. Clustering approaches, such as
low-
energy adaptive clustering hierarchy (LEACH) and its multi-hop variant (MR-LEACH), are extremely popular for data propagation. The
energy balanced protocol (EBP) is a clustering approach like MRLEACH where clusters pass data towards the base station but also, with some probability, send data long distances directly to the base station. We analytically and empirically show that EBP is close to optimal while approaches that do not use long hops like MR-LEACH are only close to optimal if sending messages long distances is prohibitively expensive.
Advisors/Committee Members: Stout, Quentin F (committee member), Lynch, Jerome P (committee member), Peikert, Christopher J (committee member), Pettie, Seth (committee member).
Subjects/Keywords: Low energy sensor algorithms; Computer Science; Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lewis, T. (2019). Energy Efficient Algorithms in Low-Energy Wireless Sensor Networks. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/153370
Chicago Manual of Style (16th Edition):
Lewis, Timothy. “Energy Efficient Algorithms in Low-Energy Wireless Sensor Networks.” 2019. Doctoral Dissertation, University of Michigan. Accessed March 04, 2021.
http://hdl.handle.net/2027.42/153370.
MLA Handbook (7th Edition):
Lewis, Timothy. “Energy Efficient Algorithms in Low-Energy Wireless Sensor Networks.” 2019. Web. 04 Mar 2021.
Vancouver:
Lewis T. Energy Efficient Algorithms in Low-Energy Wireless Sensor Networks. [Internet] [Doctoral dissertation]. University of Michigan; 2019. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2027.42/153370.
Council of Science Editors:
Lewis T. Energy Efficient Algorithms in Low-Energy Wireless Sensor Networks. [Doctoral Dissertation]. University of Michigan; 2019. Available from: http://hdl.handle.net/2027.42/153370

Texas A&M University
18.
Targhetta, Andrew David.
The Design Space of Ultra-low Energy Asymmetric Cryptography.
Degree: PhD, Computer Engineering, 2015, Texas A&M University
URL: http://hdl.handle.net/1969.1/155250
► The energy cost of asymmetric cryptography, a vital component of modern secure communications, inhibits its wide spread adoption within the ultra-low energy regimes such as…
(more)
▼ The
energy cost of asymmetric cryptography, a vital component of modern secure communications, inhibits its wide spread adoption within the ultra-
low energy regimes such as Implantable Medical Devices (IMDs), Wireless Sensor Networks (WSNs), and Radio Frequency Identification tags (RFIDs). In literature, a plethora of hardware and software acceleration techniques exists for improving the performance of asymmetric cryptography. However, very little attention has been focused on the
energy efficiency. Therefore, in this dissertation, I explore the design space thoroughly, evaluating proposed hardware acceleration techniques in terms of
energy cost and showing how effective they are at reducing the
energy per cryptographic operation. To do so, I estimate the
energy consumption for six different hardware/software configurations across five levels of security, including both GF(p) and GF(2^m) computation. First, we design and evaluate an efficient baseline architecture for pure software-based cryptography, which is centered around a pipelined RISC processor with 256KB of program ROM and 16KB of RAM. Then, we augment our processor design with simple, yet beneficial instruction set extensions for GF(p) computation and evaluate the improvement in terms of
energy per cryptographic operation compared to the baseline microarchitecture. While examining the
energy breakdown of the system, it became clear that fetching instructions from program memory was contributing significantly to the overall
energy consumption. Thus, we implement a parameterizable instruction cache and simulate various configurations. We determine that for our working set, the
energy-optimal instruction cache is 4KB, providing a 25%
energy improvement over the baseline architecture for a 192-bit key-size. Next, we introduce a reconfigurable GF(p) accelerator to our microarchitecture and mea sure the
energy per operation against the baseline and the ISA extensions. For ISA extensions, we show between 1.32 and 1.45 factor improvement in
energy efficiency over baseline, while for full acceleration we demonstrate a 5.17 to 6.34 factor improvement. Continuing towards greater efficiency, we investigate the
energy efficiency of different arithmetic by first adding GF(2^m) instruction set extensions to our processor architecture and comparing them to their GF(p) counterpart. Finally, we design a non-configurable 163-bit GF(2^m) accelerator and perform some initial
energy estimates, comparing them with our prior work. In the end, we discuss our ongoing research and make suggestions for future work. The work presented here, along with proposed future work, will aid in bringing asymmetric cryptography within reach of ultra-
low energy devices.
Advisors/Committee Members: Gratz, Paul V (advisor), Khatri, Sunil P (committee member), Harris, Harlan R (committee member), Rahe, Maury H (committee member).
Subjects/Keywords: cryptography; low-energy; hardware/software codesign
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Targhetta, A. D. (2015). The Design Space of Ultra-low Energy Asymmetric Cryptography. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155250
Chicago Manual of Style (16th Edition):
Targhetta, Andrew David. “The Design Space of Ultra-low Energy Asymmetric Cryptography.” 2015. Doctoral Dissertation, Texas A&M University. Accessed March 04, 2021.
http://hdl.handle.net/1969.1/155250.
MLA Handbook (7th Edition):
Targhetta, Andrew David. “The Design Space of Ultra-low Energy Asymmetric Cryptography.” 2015. Web. 04 Mar 2021.
Vancouver:
Targhetta AD. The Design Space of Ultra-low Energy Asymmetric Cryptography. [Internet] [Doctoral dissertation]. Texas A&M University; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1969.1/155250.
Council of Science Editors:
Targhetta AD. The Design Space of Ultra-low Energy Asymmetric Cryptography. [Doctoral Dissertation]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155250

Penn State University
19.
Yuan, Mengxue.
Development of High Reliability Glass-Polymer Laminates.
Degree: 2020, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/17329muy151
► Hybrid electric vehicles and plug-in hybrid vehicles require advanced technology in the areas of energy storage and power conditioning. The next-generation DC link capacitors should…
(more)
▼ Hybrid electric vehicles and plug-in hybrid vehicles require advanced technology in the areas of
energy storage and power conditioning. The next-generation DC link capacitors should possess larger high field endurance and lower dielectric loss, and meanwhile be able to operate at enhanced temperatures over a prolonged service life. Recently, with the revolution in the display industry, thin films of
low-alkali boroaluminosilicate glasses with excellent mechanical flexibility were produced. They can offer an outstanding level of mechanical-impact and bending strengths. Due to the lower alkali ion contents, these glasses also exhibit a large electrical breakdown strength up to 10 MV/cm,
low dielectric loss, and extraordinary thermal stability (the glass transition temperature of the glasses is above 650°C). All of these attributes make
low-alkali glass a promising candidate for high temperature dielectrics.
Many efforts have been devoted to exploring the breakdown mechanisms of the
low-alkali boroaluminosilicate glass. It has been proposed that thermal breakdown is the main mechanism. The high field failure could also be attributed to the existence of the depletion layer. Namely, under an applied field, the sodium ions in the
low-alkali boroaluminosilicate glass are driven towards the cathode side, leaving the anode region depleted of most of the ions. The substantial conductivity contrast between the depleted region and the bulk glass distorts and intensifies the local electric field in the depletion area, thus incurring the premature breakdown.
It is well known that the electrical breakdown is a stochastic process which should be best described by Weibull statistics. Beyond the characteristic breakdown strength (EBD), the distribution of electrical failures — characterized by Weibull shape parameter βw — also has important implications for the reliability and the lifetime of dielectric devices, as it is usually the
low field failure that dictates the operating voltages in practical applications. Besides, the βw shape parameter also provides and estimate of the breakdown strength of capacitor with increased size through scaling laws. The EBD of the proposed
low-alkali boroaluminosiliacate glass is 10.5 MV/cm and βw= 7. A thin layer of high glass transition temperature polymer (FPE) was coated on both sides of the glass and the polymer coating significantly increases the βw to 49 without diluting its
energy density.
Improvement of the distribution of breakdown failures necessitates the understanding of breakdown mechanisms in dielectric materials. For the
low-alkali boroaluminosilicate glass system, it has been reported that the thermal breakdown is mainly responsible for the dielectric failures; other researchers have also correlated the intensified local electric fields in the ion-depleted regions with the dielectric breakdown. In this study, an alternative approach is presented to mitigate the inhomogeneous electric field distribution. Simulation result of the local electric fileld distribution supports the…
Advisors/Committee Members: Michael T Lanagan, Dissertation Advisor/Co-Advisor, Michael T Lanagan, Committee Chair/Co-Chair, Ramakrishnan Rajagopalan, Committee Chair/Co-Chair, Qing Wang, Committee Member, Zoubeida Ounaies, Outside Member, Susan B Sinnott, Program Head/Chair, Ramakrishnan Rajagopalan, Dissertation Advisor/Co-Advisor.
Subjects/Keywords: Low-alkali Boroaluminosilicate Glass; Laminate; Energy Storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Yuan, M. (2020). Development of High Reliability Glass-Polymer Laminates. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/17329muy151
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Yuan, Mengxue. “Development of High Reliability Glass-Polymer Laminates.” 2020. Thesis, Penn State University. Accessed March 04, 2021.
https://submit-etda.libraries.psu.edu/catalog/17329muy151.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Yuan, Mengxue. “Development of High Reliability Glass-Polymer Laminates.” 2020. Web. 04 Mar 2021.
Vancouver:
Yuan M. Development of High Reliability Glass-Polymer Laminates. [Internet] [Thesis]. Penn State University; 2020. [cited 2021 Mar 04].
Available from: https://submit-etda.libraries.psu.edu/catalog/17329muy151.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Yuan M. Development of High Reliability Glass-Polymer Laminates. [Thesis]. Penn State University; 2020. Available from: https://submit-etda.libraries.psu.edu/catalog/17329muy151
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

North Carolina State University
20.
Iyer, Balaji Viswanathan.
Length Adaptive Processors: A Solution for the Energy/Performance Dilemma in Embedded Systems.
Degree: PhD, Computer Engineering, 2009, North Carolina State University
URL: http://www.lib.ncsu.edu/resolver/1840.16/4680
► Embedded-handheld devices are the predominant computing platform today. These devices are required to perform complex tasks yet run on batteries. Some architects use ASIC to…
(more)
▼ Embedded-handheld devices are the predominant computing platform today. These devices are required to perform complex tasks yet run on batteries. Some architects use ASIC to combat this
energy-performance dilemma. Even though they are efficient in solving this problem, an ASIC can cause code-compatibility problems for the future generations. Thus, it is necessary for a general purpose solution. Furthermore, no single processor configuration provides the best
energy-performance solution over a diverse set of applications or even throughout the life of a single application. As a result, the processor needs to be adaptable to the specific workload behavior. Code-generation and code-compatibility are the biggest challenges in such adaptable processors.
At the same time, embedded systems have fixed
energy source such as a 1-Volt battery. Thus, the
energy consumption of these devices must be predicted with utmost accuracy. A gross miscalculation can cause the system to be cumbersome for the user.
In this work, we provide a new paradigm of embedded processors called Dynamic Length-Adaptive Processors that have the flexibility of a general purpose processor with the specialization of an ASIC. We create such a processor called Clustered Length-Adaptive Word Processor (CLAW) that is able to dynamically modify its issue width with one VLIW instruction overhead. This processor is designed in Verilog, synthesized, DRC-checked, and placed and routed. Its
energy and performance values are reported using industrial-strength transistor-level analysis tools to dispel several myths that were thought to be dominating factors in embedded systems.
To compile benchmarks for the CLAW processor, we provide the necessary software tools that help produce optimized code for performance improvement and
energy reduction, and discuss some of the code-generation procedures and challenges.
Second, we try and understand the code-generator patterns of the compiler by sampling a representative application and design an ISA opcode-configuration that helps minimize the
energy necessary to decode the instructions with no performance-loss. We discover that having a well designed opcode-configuration, not only reduces
energy in the decoder by also other units such as the fetch and exception units. Moreover, the sizable amount of
energy reduction can be achieved in a diverse set of applications.
Next, we try to reduce the
energy consumption and power-dissipation of register-read and register-writes by using popular common-value register-sharing techniques that are used to enhance performance. We provide a power-model for these structures based on the value localities of the application. Finally, we perform a case-study using the IEEE 802.11n PHY Transmitter and Decoder and identify its
energy-hungry units. Then, we apply our techniques and show that CLAW is a solution for such hybrid complex algorithms for providing high-performance while reducing the total
energy.
Advisors/Committee Members: Eric Rotenberg, Committee Member (advisor), Dr. Thomas M. Conte, Committee Chair (advisor), W. Rhett Davis, Committee Member (advisor), S. Purushothaman Iyer, Committee Member (advisor).
Subjects/Keywords: Energy Reduction Low-Power Embedded Processors Len
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Iyer, B. V. (2009). Length Adaptive Processors: A Solution for the Energy/Performance Dilemma in Embedded Systems. (Doctoral Dissertation). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/4680
Chicago Manual of Style (16th Edition):
Iyer, Balaji Viswanathan. “Length Adaptive Processors: A Solution for the Energy/Performance Dilemma in Embedded Systems.” 2009. Doctoral Dissertation, North Carolina State University. Accessed March 04, 2021.
http://www.lib.ncsu.edu/resolver/1840.16/4680.
MLA Handbook (7th Edition):
Iyer, Balaji Viswanathan. “Length Adaptive Processors: A Solution for the Energy/Performance Dilemma in Embedded Systems.” 2009. Web. 04 Mar 2021.
Vancouver:
Iyer BV. Length Adaptive Processors: A Solution for the Energy/Performance Dilemma in Embedded Systems. [Internet] [Doctoral dissertation]. North Carolina State University; 2009. [cited 2021 Mar 04].
Available from: http://www.lib.ncsu.edu/resolver/1840.16/4680.
Council of Science Editors:
Iyer BV. Length Adaptive Processors: A Solution for the Energy/Performance Dilemma in Embedded Systems. [Doctoral Dissertation]. North Carolina State University; 2009. Available from: http://www.lib.ncsu.edu/resolver/1840.16/4680

University of Bath
21.
Kelly, Katharine Anne.
An environmental life cycle assessment of energy systems leading to a pathway for a low carbon economy.
Degree: PhD, 2013, University of Bath
URL: https://researchportal.bath.ac.uk/en/studentthesis/an-environmental-life-cycle-assessment-of-energy-systems-leading-to-a-pathway-for-a-low-carbon-economy(30c7ba5b-c422-4cfe-82c9-0ce498e63ca9).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629654
► In 2008, the UK Government enforced the target to reduce the UK carbon account for the year 2050 to at least 80% less than the…
(more)
▼ In 2008, the UK Government enforced the target to reduce the UK carbon account for the year 2050 to at least 80% less than the 1990 baseline. In order to meet this ambitious target it is widely thought that the UK energy future should be ‘electrified’ as a suite of low carbon generation technologies provide ever increasing proportions of electricity supply. This work has identified and investigated two technologies that could make significant contributions to low carbon power supply in the UK; that of industrial combined heat and power, CHP, and tidal power. Life cycle case studies were completed on an existing UK CHP plant and the Severn Barrage scheme as it was proposed until 2010. The Severn Barrage assessment has shown that the lifetime environmental impact is dominated by the operation stage. This is contrary to previously published studies, which have underestimated (Parsons Brinckerhoff Ltd; Black and Veatch Ltd; 2010)(Roberts 1982)(Spevack, Jones and Hammond 2011) or even ignored (Black & Veatch 2007)(Woollcombe-Adams, Watson and Shaw 2009)the contribution from this life stage. Furthermore, the results have demonstrated that the impact intensity of power from the Barrage is almost entirely reliant on that of the National Grid mix which provides the operational power required. It has been shown a large improvement to the impact of the operation stage can be made by removing the electricity demand for ‘flood pumping’. However, even without ‘flood pumping’, the impact of the power demand for plant operation will dominate. Hence the greatest improvements to the schemes lifetime impact can be made via the National Grid mix itself. The industrial CHP assessment has shown that there are large impact savings available from widespread implementation against the current and the baseline National Grid mixes. However, even if it is assumed that units are exclusively bio-gas fuelled, the carbon intensity of the power generated is very likely to exceed that of the low carbon Grid mix by 2050. The discussion shows that the interactive roles that these two technologies could play, with each other and the evolving Grid mix, on the pathway to 2050 is, however, more complex than simply considering the isolated impact intensity. The commissioning of the Severn Barrage could mark the point at which the carbon intensity of the National Grid falls below that of CHP. However because the carbon intensity of the plant is reliant on the national power supply, it is argued that further CHP implementation should only be stopped if there is a suitable low carbon and low impact alternative that can fill the capacity gap. This thesis concludes that to fear that today’s CHP schemes could represent a technology ‘lock-in’ in the long term future is to underestimate the role the technology has in the current and more short term future Grid mix. The work presented demonstrates the importance of life cycle thinking in the development of a low impact energy strategy. The discussion has also shown the importance of scenarios in assessing the…
Subjects/Keywords: 333.79; life cycle assessment; low carbon; energy
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kelly, K. A. (2013). An environmental life cycle assessment of energy systems leading to a pathway for a low carbon economy. (Doctoral Dissertation). University of Bath. Retrieved from https://researchportal.bath.ac.uk/en/studentthesis/an-environmental-life-cycle-assessment-of-energy-systems-leading-to-a-pathway-for-a-low-carbon-economy(30c7ba5b-c422-4cfe-82c9-0ce498e63ca9).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629654
Chicago Manual of Style (16th Edition):
Kelly, Katharine Anne. “An environmental life cycle assessment of energy systems leading to a pathway for a low carbon economy.” 2013. Doctoral Dissertation, University of Bath. Accessed March 04, 2021.
https://researchportal.bath.ac.uk/en/studentthesis/an-environmental-life-cycle-assessment-of-energy-systems-leading-to-a-pathway-for-a-low-carbon-economy(30c7ba5b-c422-4cfe-82c9-0ce498e63ca9).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629654.
MLA Handbook (7th Edition):
Kelly, Katharine Anne. “An environmental life cycle assessment of energy systems leading to a pathway for a low carbon economy.” 2013. Web. 04 Mar 2021.
Vancouver:
Kelly KA. An environmental life cycle assessment of energy systems leading to a pathway for a low carbon economy. [Internet] [Doctoral dissertation]. University of Bath; 2013. [cited 2021 Mar 04].
Available from: https://researchportal.bath.ac.uk/en/studentthesis/an-environmental-life-cycle-assessment-of-energy-systems-leading-to-a-pathway-for-a-low-carbon-economy(30c7ba5b-c422-4cfe-82c9-0ce498e63ca9).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629654.
Council of Science Editors:
Kelly KA. An environmental life cycle assessment of energy systems leading to a pathway for a low carbon economy. [Doctoral Dissertation]. University of Bath; 2013. Available from: https://researchportal.bath.ac.uk/en/studentthesis/an-environmental-life-cycle-assessment-of-energy-systems-leading-to-a-pathway-for-a-low-carbon-economy(30c7ba5b-c422-4cfe-82c9-0ce498e63ca9).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629654
22.
Holby, Björn.
Low Power Current Sensing Node Powered by Harvested Stray Electric Field Energy.
Degree: Faculty of Science & Engineering, 2015, Linköping UniversityLinköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121520
► In this thesis, the possibility of harvesting energy from a multicore power cableconnected to a power outlet is presented and evaluated. By surrounding a…
(more)
▼ In this thesis, the possibility of harvesting energy from a multicore power cableconnected to a power outlet is presented and evaluated. By surrounding a powercable with a conductive material connected to ground, it is shown that the dif-ference in potential between the power cable and the conductive material causesa capacitance which can charge a capacitor that in combination with an energymanagement circuit can be used to wirelessly transmit data with an interval de-pending on factors like the length of the surrounding material and the type ofcable it is placed around. In addition to this, a technique to, in a non-invasiveway, sense whether there is alternating current flowing in a multicore power ca-ble is brought up. The results show that this technique can be used to detectalternating current without having a device connected between the power cableand the power outlet. These two sections combined are used to design a surveil-lance system that should monitor consumer electronics in the home environmentwhere there is a fire hazard. The system should send out a warning signal thatis visible for the homeowner to remind the user to switch off the power of theelectronic devices before leaving home.
Subjects/Keywords: Energy Harvesting; Low Power; Sensor; Wireless Communication
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Holby, B. (2015). Low Power Current Sensing Node Powered by Harvested Stray Electric Field Energy. (Thesis). Linköping UniversityLinköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121520
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Holby, Björn. “Low Power Current Sensing Node Powered by Harvested Stray Electric Field Energy.” 2015. Thesis, Linköping UniversityLinköping University. Accessed March 04, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121520.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Holby, Björn. “Low Power Current Sensing Node Powered by Harvested Stray Electric Field Energy.” 2015. Web. 04 Mar 2021.
Vancouver:
Holby B. Low Power Current Sensing Node Powered by Harvested Stray Electric Field Energy. [Internet] [Thesis]. Linköping UniversityLinköping University; 2015. [cited 2021 Mar 04].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121520.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Holby B. Low Power Current Sensing Node Powered by Harvested Stray Electric Field Energy. [Thesis]. Linköping UniversityLinköping University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121520
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Jönköping University
23.
Johansson, Mathias.
Utvärdering av inomhuslokalisering med Bluetooth Low Energy.
Degree: Computer and Electrical Engineering, 2015, Jönköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-26788
► Wireless communication is becoming more common, a relatively new technology within the area is Bluetooth Low Energy. It’s been developed to be energy efficient…
(more)
▼ Wireless communication is becoming more common, a relatively new technology within the area is Bluetooth Low Energy. It’s been developed to be energy efficient and in regard to compatibility. Alongside the growth of wireless technology, scientists and companies are looking for new areas of use. One of these is localization, which means to determine the position of a moving device with the use of stationary devices, an example of this would be GPS.This report means to evaluate indoor localization using Bluetooth Low Energy and was made for Combitech AB in Jönköping. The purpose of the work was to determine with what accuracy and precision the position of a moving device could be estimated. The report will answer the following questions: With what accuracy and precision can the position of a device be determined within a test area of varying size using Bluetooth Low Energy? Is the accuracy and precision affected by the environment?The authors chose an inductive reasoning and therefore intended to answer the questions with the help of experimental studies. A system consisting of both software and hardware was developed and was then used to conduct multiple rounds of tests, where the size of the area and the environment was varied.By evaluating the data gathered from said tests and comparing it to theoretical studies and prior research credible results were obtained. The accuracy appears to decrease as the distance between the units is increased, however a deeper analysis shows that the difference is smaller below 500 cm. No correlation is found between environment and accuracy. When three stationary units, forming a triangle with 400 cm between the vertices, are used to determine the position of a fourth the achieved accuracy is 65 cm. During the tests the precision is not shown to decrease with distance, it seems to vary independently. However, as the environment is changed a noticeable difference is observed. In a gymnasium the standard deviation was calculated to 0.38 RSSIwhereas in an office environment it was 0.99 RSSI. In regard to the given results the authors conclude that Bluetooth Low Energy shows some potential for the use in indoor positioning systems. A possible scenario where the technology would be well suited would be when the units need to work of a coin cell battery for a large period of time, while the system must support multiple types of units and a rough estimation of the position is adequate.
Trådlös kommunikation blir allt mer vanlig i vår vardag, en relativt ny teknik inom detta område är Bluetooth Low Energy som utvecklats med avseende på energieffektivitet och kompabilitet. Parallellt med den trådlösa teknikens spridning letar forskare, såväl som företag, efter nya användningsområden. En av dessa är lokalisering, vilket innebär att med fasta enheter avgöra rörliga enheters position, ett exempel på detta är GPS. Detta arbete handlar om att utvärdera inomhuslokalisering med Bluetooth Low Energy och gjordes på uppdrag av Combitech AB i Jönköping. Syftet var att undersöka med vilken…
Subjects/Keywords: Bluetooth Low Energy; trilateration; inomhuslokalisering; signalstyrka; RSSI
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Johansson, M. (2015). Utvärdering av inomhuslokalisering med Bluetooth Low Energy. (Thesis). Jönköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-26788
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Johansson, Mathias. “Utvärdering av inomhuslokalisering med Bluetooth Low Energy.” 2015. Thesis, Jönköping University. Accessed March 04, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-26788.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Johansson, Mathias. “Utvärdering av inomhuslokalisering med Bluetooth Low Energy.” 2015. Web. 04 Mar 2021.
Vancouver:
Johansson M. Utvärdering av inomhuslokalisering med Bluetooth Low Energy. [Internet] [Thesis]. Jönköping University; 2015. [cited 2021 Mar 04].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-26788.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Johansson M. Utvärdering av inomhuslokalisering med Bluetooth Low Energy. [Thesis]. Jönköping University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-26788
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology
24.
Thiruvelselvam, Senthil Kumar (author).
Energy Harvesting From A Piezoelectric Source To Power A Wireless System.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:c4f1225a-de30-4bbc-b14c-ca5b2534cfbd
► Batteries are vital sources in many wireless embedded systems applications like the Tire Pressure Management System (TPMS) in the automobile industry. Also, the growth of…
(more)
▼ Batteries are vital sources in many wireless embedded systems applications like the Tire Pressure Management System (TPMS) in the automobile industry. Also, the growth of electric cars will result in an increasing demand for batteries. Although batteries do not directly pollute the environment during their active life, the production phase and decomposition phase will contribute to pollution. The limited lifetime of batteries also emphasizes the need for a change to new technologies. Replacing batteries becomes difficult in applications on desolated places.
Energy harvesting can be an attractive alternative solution. Techniques like electrostatic, electromagnetic and piezoelectric
energy harvesting can convert the
energy in the ambiance to an useful electrical
energy. Piezoelectric
energy harvesting can be useful as they have been proven vital in converting vibration
energy to the required form. This research focuses on powering wireless systems like a TPMS in a car by piezoelectric
energy harvesting. It provides the requirements and decisions involved in designing a circuit capable of transferring input
energy to output in an efficient manner. The circuit rectifies the output of a piezoelectric material and provides an output of 3.3 V. Result showed that the circuit was able to power an LED for 5.8 s. By adjusting the circuit according to the power requirements, the circuit can be the source to
low power wireless embedded systems.
Advisors/Committee Members: French, Paddy (mentor), Groen, Pim (graduation committee), Bossche, Andre (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Energy Harvesting; piezoelectric; Low Power Sensors
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Thiruvelselvam, S. K. (. (2018). Energy Harvesting From A Piezoelectric Source To Power A Wireless System. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:c4f1225a-de30-4bbc-b14c-ca5b2534cfbd
Chicago Manual of Style (16th Edition):
Thiruvelselvam, Senthil Kumar (author). “Energy Harvesting From A Piezoelectric Source To Power A Wireless System.” 2018. Masters Thesis, Delft University of Technology. Accessed March 04, 2021.
http://resolver.tudelft.nl/uuid:c4f1225a-de30-4bbc-b14c-ca5b2534cfbd.
MLA Handbook (7th Edition):
Thiruvelselvam, Senthil Kumar (author). “Energy Harvesting From A Piezoelectric Source To Power A Wireless System.” 2018. Web. 04 Mar 2021.
Vancouver:
Thiruvelselvam SK(. Energy Harvesting From A Piezoelectric Source To Power A Wireless System. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Mar 04].
Available from: http://resolver.tudelft.nl/uuid:c4f1225a-de30-4bbc-b14c-ca5b2534cfbd.
Council of Science Editors:
Thiruvelselvam SK(. Energy Harvesting From A Piezoelectric Source To Power A Wireless System. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:c4f1225a-de30-4bbc-b14c-ca5b2534cfbd

Delft University of Technology
25.
Xenakis, Dimitris (author).
Translating BLE Received Signals across different Smartphones.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:e5768343-3143-49e0-b6eb-3239e064c96d
► This report constitutes the final product of my internship, where research was conducted on the differences of the Bluetooth Low Energy signal reception between 2…
(more)
▼ This report constitutes the final product of my internship, where research was conducted on the differences of the Bluetooth Low Energy signal reception between 2 different phones (p1, p2) and eventually, the possibility of developing a translation function that could be used to predict the signal strength reception of p1, by considering the signal strength reception of p2. Such model would be particularly useful to applications related to Indoor Localization/Positioning, as these are often based on the BLE signal strength. For the development of this model, the influence of several parameters was assessed, such as: a) the distance between a phone and a beacon, b) their orientations and c) the number of concurrently broadcasting beacons, and all were found to be significant. Furthermore, it was discovered that as long as there is no movement in the system, the BLE signal reception at a specific channel has low variations and so, even a few samples can be representative for each channel. The evaluation of the translation functions was quite promising. Ultimately, by taking advantage of a specific Android's behaviour during the training phase, it became possible to identify the channels of incoming BLE signals. This information was then used to significantly enhance the performance of the translations under specific circumstances (i.e. the channels can be identified during the operational phase too).
Internship
Geomatics
Advisors/Committee Members: Verbree, Edward (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: Bluetooth Low Energy; RSSI Translation; RSSI Fingerprinting
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Xenakis, D. (. (2018). Translating BLE Received Signals across different Smartphones. (Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e5768343-3143-49e0-b6eb-3239e064c96d
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Xenakis, Dimitris (author). “Translating BLE Received Signals across different Smartphones.” 2018. Thesis, Delft University of Technology. Accessed March 04, 2021.
http://resolver.tudelft.nl/uuid:e5768343-3143-49e0-b6eb-3239e064c96d.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Xenakis, Dimitris (author). “Translating BLE Received Signals across different Smartphones.” 2018. Web. 04 Mar 2021.
Vancouver:
Xenakis D(. Translating BLE Received Signals across different Smartphones. [Internet] [Thesis]. Delft University of Technology; 2018. [cited 2021 Mar 04].
Available from: http://resolver.tudelft.nl/uuid:e5768343-3143-49e0-b6eb-3239e064c96d.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Xenakis D(. Translating BLE Received Signals across different Smartphones. [Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:e5768343-3143-49e0-b6eb-3239e064c96d
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology
26.
Dreef, Jori (author).
Simulating Frontal Low Level Jets and Quantifying their Impact on Wind Energy Production.
Degree: 2019, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:2b50a76b-ada9-4279-a67e-9c50bb4025cf
► Wind energy is becoming an important source of energy and reliable forecasts for the production of wind energy are needed to improve its integration in…
(more)
▼ Wind energy is becoming an important source of energy and reliable forecasts for the production of wind energy are needed to improve its integration in the power grid. The increasing height of wind turbines results in higher layers of the atmosphere being reached, where other phenomena than the surface-based ones can be of importance. One of these phenomena that can affect the wind energy production is a ramp up or a ramp down; a sudden increase or decrease in wind speed. One of the causes of a ramp down is a Frontal Low Level Jet (FLLJ), a jet stream which forms just ahead of a cold front. When the front has passed, the wind speed suddenly drops. It is yet unknown how well frontal Low Level Jets (LLJs) are simulated by a numerical weather prediction model. For this research, case studies of occurrences of FLLJs were determined based on Light Detection And Ranging (LiDAR) observations, synopticmaps and coarse-resolutionWeather Research and Forecasting (WRF) simulations. The chosen case studies were simulated with WRF using a finer resolution. These simulations were compared with surface observations from weather stations, wind profiler observations, LiDAR observations and observations from a wind farm. From these comparisons it was concluded that the WRF model performed relatively well in general. The general development and dissolving of the FLLJ were simulated correctly, but the timing and magnitude of these simulations can be improved.
Civil Engineering
Advisors/Committee Members: Basu, Sukanta (mentor), Coelingh, Jan (mentor), Jonker, Harmen (graduation committee), Watson, Simon (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: wind energy; WRF; low level jets
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dreef, J. (. (2019). Simulating Frontal Low Level Jets and Quantifying their Impact on Wind Energy Production. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:2b50a76b-ada9-4279-a67e-9c50bb4025cf
Chicago Manual of Style (16th Edition):
Dreef, Jori (author). “Simulating Frontal Low Level Jets and Quantifying their Impact on Wind Energy Production.” 2019. Masters Thesis, Delft University of Technology. Accessed March 04, 2021.
http://resolver.tudelft.nl/uuid:2b50a76b-ada9-4279-a67e-9c50bb4025cf.
MLA Handbook (7th Edition):
Dreef, Jori (author). “Simulating Frontal Low Level Jets and Quantifying their Impact on Wind Energy Production.” 2019. Web. 04 Mar 2021.
Vancouver:
Dreef J(. Simulating Frontal Low Level Jets and Quantifying their Impact on Wind Energy Production. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Mar 04].
Available from: http://resolver.tudelft.nl/uuid:2b50a76b-ada9-4279-a67e-9c50bb4025cf.
Council of Science Editors:
Dreef J(. Simulating Frontal Low Level Jets and Quantifying their Impact on Wind Energy Production. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:2b50a76b-ada9-4279-a67e-9c50bb4025cf

Delft University of Technology
27.
Filgueira Luaces, Silvia (author).
From gas to geothermal energy: Adaptations at building level for a lower temperature in the heating network.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:32dcb3ab-d29e-45dd-8fcf-fc4a793aae7b
► The transition from fossil fuels to renewable energy sources brings along the reduction of the supply temperature of the distribution heating networks, because renewable energy…
(more)
▼ The transition from fossil fuels to renewable
energy sources brings along the reduction of the supply temperature of the distribution heating networks, because renewable
energy sources usually provide heat at lower temperatures. This master thesis specifically focuses on the buildings because it is uncertain which adaptations are necessary to ensure thermal comfort when the supply temperature decreases. Especially in existing buildings, since they were originally designed for high operating temperatures. A case study was conducted by studying the performance of a non-residential building under different simulated scenarios to enable lower operating temperatures in the heating network. The objectives of the research are two: 1) to develop of a protocol for data collection and selection of promising adaptations that facilitates a case study on this topic and 2) to compare the observed effects of the different possible adaptations on the required operating temperatures in this case study with the results of the few other studies available. The most interesting results derived from the case study are that it is possible to lower the peak power, and thus the operating temperatures, in the current situation of the selected building, without any adaptation, from 78/70 °C to 63/55 °C. Assuming that the mass flow is decreased in order to achieve a bigger temperature difference between supply and return, operating temperatures can be 70/50 °C. Mass flow control through radiators should then be implemented in order to obtain the lowest possible return temperature for a given supply temperature. During the implementation phase of the geothermal project, the implications of this measure need to be studied. When heat losses are small, smart settings in the building management system prove successful to lower the supply temperature further. In the controls and operation scenarios, adjusting the room temperature setpoints and the heating schedules enables even lower supply and return temperatures, 50/35 °C. In old, poorly insulated buildings, minimal renovations in the buildings’ envelope are crucial (and often sufficient) to enable
low temperature heating. When the building without renovations was simulated, it was not possible to lower the operating temperatures; instead, the required temperature increased to 90/70 °C. Changes in the
energy system, such as the installation of radiators designed for lower temperature heating, also enable supply and return temperatures of 50/35 °C. The case study building has a ventilation system with heat recovery and pre-heating of air to 19 °C. A scenario is simulated with a system with only heat recovery. The ventilation air is introduced in the room at lower temperatures, and the heating system takes over the heat demand. For the same operating temperatures, 70/50 °C, the heat recovery scenario suffers a decrease in the thermal comfort. Seeing the effect of the heating through ventilation air in lowering the supply and return temperatures, a central ventilation system with heat recovery and…
Advisors/Committee Members: Blok, Kornelis (mentor), Jansen, Sabine (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: geothermal energy; low temperature heating; Building renovation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Filgueira Luaces, S. (. (2020). From gas to geothermal energy: Adaptations at building level for a lower temperature in the heating network. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:32dcb3ab-d29e-45dd-8fcf-fc4a793aae7b
Chicago Manual of Style (16th Edition):
Filgueira Luaces, Silvia (author). “From gas to geothermal energy: Adaptations at building level for a lower temperature in the heating network.” 2020. Masters Thesis, Delft University of Technology. Accessed March 04, 2021.
http://resolver.tudelft.nl/uuid:32dcb3ab-d29e-45dd-8fcf-fc4a793aae7b.
MLA Handbook (7th Edition):
Filgueira Luaces, Silvia (author). “From gas to geothermal energy: Adaptations at building level for a lower temperature in the heating network.” 2020. Web. 04 Mar 2021.
Vancouver:
Filgueira Luaces S(. From gas to geothermal energy: Adaptations at building level for a lower temperature in the heating network. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Mar 04].
Available from: http://resolver.tudelft.nl/uuid:32dcb3ab-d29e-45dd-8fcf-fc4a793aae7b.
Council of Science Editors:
Filgueira Luaces S(. From gas to geothermal energy: Adaptations at building level for a lower temperature in the heating network. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:32dcb3ab-d29e-45dd-8fcf-fc4a793aae7b

IUPUI
28.
Whittaker, Kyle.
A Low Power FinFET Charge Pump For Energy Harvesting Applications.
Degree: 2020, IUPUI
URL: http://hdl.handle.net/1805/22681
► Indiana University-Purdue University Indianapolis (IUPUI)
With the growing popularity and use of devices under the great umbrella that is the Internet of Things (IoT), the…
(more)
▼ Indiana University-Purdue University Indianapolis (IUPUI)
With the growing popularity and use of devices under the great umbrella that is the Internet of Things (IoT), the need for devices that are smaller, faster, cheaper and require less power is at an all time high with no intentions of slowing down. This is why many current research efforts are very focused on energy harvesting. Energy harvesting is the process of storing energy from external and ambient sources and delivering a small amount of power to low power IoT devices such as wireless sensors or wearable electronics. A charge pumps is a circuit used to convert a power supply to a higher or lower voltage depending on the specific application. Charge pumps are generally seen in memory design as a verity of power supplies are required for the newer memory technologies. Charge pumps can be also be designed for low voltage operation and can convert a smaller energy harvesting voltage level output to one that may be needed for the IoT device to operate. In this work, an integrated FinFET (Field Effect Transistor) charge pump for low power energy harvesting applications is proposed.
The design and analysis of this system was conducted using Cadence Virtuoso Schematic L-Editing, Analog Design Environment and Spectre Circuit Simulator tools using the 7nm FinFETs from the ASAP7 7nm PDK. The research conducted here takes advantage of some inherent characteristics that are present in FinFET technologies, including low body effects, and faster switching speeds, lower threshold voltage and lower power consumption. The lower threshold voltage of the FinFET is key to get great performance at lower supply voltages.
The charge pump in this work is designed to pump a 150mV power supply, generated from an energy harvester, to a regulated 650mV, while supplying 1uA of load current, with a 20mV voltage ripple in steady state (SS) operation. At these conditions, the systems power consumption is 4.85uW and is 31.76% efficient. Under no loading conditions, the charge pump reaches SS operation in 50us, giving it the fastest rise time of the compared state of the art efforts mentioned in this work. The minimum power supply voltage for the system to function is 93mV where it gives a regulated output voltage of $25mV.
FinFET technology continues to be a very popular design choice and even though it has been in production since Intel's Ivy-Bridge processor in 2012, it seems that very few efforts have been made to use the advantages of FinFETs for charge pump design. This work shows though simulation that FinFET charge pumps can match the performance of charge pumps implemented in other technologies and should be considered for low power designs such as energy harvesting.
Advisors/Committee Members: Rizkalla, Maher E., Ytterdal, Trond, King, Brian S..
Subjects/Keywords: Low Power; FinFET; Charge Pump; Energy Harvesting
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Whittaker, K. (2020). A Low Power FinFET Charge Pump For Energy Harvesting Applications. (Thesis). IUPUI. Retrieved from http://hdl.handle.net/1805/22681
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Whittaker, Kyle. “A Low Power FinFET Charge Pump For Energy Harvesting Applications.” 2020. Thesis, IUPUI. Accessed March 04, 2021.
http://hdl.handle.net/1805/22681.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Whittaker, Kyle. “A Low Power FinFET Charge Pump For Energy Harvesting Applications.” 2020. Web. 04 Mar 2021.
Vancouver:
Whittaker K. A Low Power FinFET Charge Pump For Energy Harvesting Applications. [Internet] [Thesis]. IUPUI; 2020. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1805/22681.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Whittaker K. A Low Power FinFET Charge Pump For Energy Harvesting Applications. [Thesis]. IUPUI; 2020. Available from: http://hdl.handle.net/1805/22681
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria
29.
Li, Wanbo.
Wireless ECG system with bluetooth low energy and compressed sensing.
Degree: Department of Electrical and Computer Engineering, 2016, University of Victoria
URL: http://hdl.handle.net/1828/7398
► Electrocardiogram (ECG) is a noninvasive technology widely used in health care systems for diagnosis of heart diseases, and a wearable ECG sensor with long-term monitoring…
(more)
▼ Electrocardiogram (ECG) is a noninvasive technology widely used in health care systems for diagnosis of heart diseases, and a wearable ECG sensor with long-term monitoring is necessary for real-time heart disease detection. However, the conventional ECG is restricted considering the physical size and power consumption of the system. In this thesis, we propose a Wireless ECG System with Bluetooth
Low Energy (BLE) and Compressed Sensing (CS).
The proposed Wireless ECG System includes an ECG sensor board based on a BLE chip, an Android application and a web service with a database. The ECG signal is first collected by the ECG Sensor Board and then transmitted to the Android application through BLE protocol. At last, the ECG signal is uploaded to the cloud database from the Android app. We also introduce Compressed Sensing into our system with a novel sparse sensing matrix, data compression and a modified Compressive Sampling Matching Pursuit (CoSaMP) reconstruction algorithm. Experiment results show that the amount of data transmitted is reduced by about 57% compared to not using Compressed Sensing, and reconstruction time is 64% less than using Orthogonal Matching Pursuit (OMP) or Iterative Re-weighted Least Squares (IRLS) algorithm.
Advisors/Committee Members: Dong, Xiaodai (supervisor).
Subjects/Keywords: Bluetooth Low Energy; Compressed Sensing; ECG compression
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APA ·
Chicago ·
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APA (6th Edition):
Li, W. (2016). Wireless ECG system with bluetooth low energy and compressed sensing. (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/7398
Chicago Manual of Style (16th Edition):
Li, Wanbo. “Wireless ECG system with bluetooth low energy and compressed sensing.” 2016. Masters Thesis, University of Victoria. Accessed March 04, 2021.
http://hdl.handle.net/1828/7398.
MLA Handbook (7th Edition):
Li, Wanbo. “Wireless ECG system with bluetooth low energy and compressed sensing.” 2016. Web. 04 Mar 2021.
Vancouver:
Li W. Wireless ECG system with bluetooth low energy and compressed sensing. [Internet] [Masters thesis]. University of Victoria; 2016. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/1828/7398.
Council of Science Editors:
Li W. Wireless ECG system with bluetooth low energy and compressed sensing. [Masters Thesis]. University of Victoria; 2016. Available from: http://hdl.handle.net/1828/7398

University of Illinois – Urbana-Champaign
30.
Nahlus, Ihab.
A dot product kernel using rapidly switched analog circuit.
Degree: MS, Electrical & Computer Engineering, 2015, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/88010
► In a world driven by technology and hand-held devices, there is ubiquitous demand for high-performance, low-energy processing engines. In this thesis, we present rapidly switched…
(more)
▼ In a world driven by technology and hand-held devices, there is ubiquitous demand for high-performance,
low-
energy processing engines. In this thesis, we present rapidly switched analog circuit (RSAC), a new circuit architecture, to implement an
energy-efficient mixed-signal dot product (DP) kernel for machine learning and signal processing applications. RSAC operates by fast switching the analog inputs to the output via variable width digital pulses. A description of the different components of RSAC, along with a detailed accuracy and
energy consumption analysis is presented. We show two RSAC designs that span the different design options and technology nodes. Simulations for the first design in a 130 nm process show
energy savings of 19x to 32x compared to a digital implementation for signal-to-quantization-noise ratios (SQNRs) of 30 dB to 24 dB, respectively. Simulations for the second design in a 28 nm FDSOI process show
energy savings of 15.7x, 4x, 2.1x compared to a digital implementation running at the same sampling frequency for SQNRs of 8 dB, 14 dB and 20 dB, respectively. Finally, we present the design of an emotion recognition system composed solely of SAC-based dot-products. Based on the behavioral and
energy models developed in this thesis, we obtain
energy savings of 45% and 49% compared to a digital implementation for average probabilities of error of 0.23 and 0.07, running at frequencies of 1.87 MHz and 1.7 MHz, respectively.
Advisors/Committee Members: Shanbhag, Naresh R. (advisor).
Subjects/Keywords: low energy; mixed-signal; dot product
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Nahlus, I. (2015). A dot product kernel using rapidly switched analog circuit. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/88010
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Nahlus, Ihab. “A dot product kernel using rapidly switched analog circuit.” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed March 04, 2021.
http://hdl.handle.net/2142/88010.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Nahlus, Ihab. “A dot product kernel using rapidly switched analog circuit.” 2015. Web. 04 Mar 2021.
Vancouver:
Nahlus I. A dot product kernel using rapidly switched analog circuit. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Mar 04].
Available from: http://hdl.handle.net/2142/88010.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Nahlus I. A dot product kernel using rapidly switched analog circuit. [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/88010
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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