Дисертації з теми "Power cone"
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Vilches, Freixas Gloria. "Dual-energy cone-beam CT for proton therapy." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI099/document.
Повний текст джерелаProton therapy is a promising radiation treatment modality that uses proton beams to treat cancer. Current treatment planning systems rely on an X-ray computed tomography (CT) image of the patient's anatomy to design the treatment plan. The proton stopping-power ratio relative to water (SPR) is derived from CT numbers (HU) to compute the absorbed dose in the patient. Protons are more vulnerable than photons to changes in tissue SPR in the beam direction caused by movement, misalignment or anatomical changes. In addition, inaccuracies arising from the planning CT and intrinsic to the HU-SPR conversion greatly contribute to the proton range uncertainty. In clinical practice, safety margins are added to the treatment volume to account for these uncertainties at the expense of losing organ-sparing capabilities. The use of dual-energy (DE) in proton therapy was first suggested in 2009 to better estimate the SPR with respect to single-energy X-ray imaging. The aim of this thesis work is to investigate the potential improvement in determining proton SPR using DE to reduce the uncertainty in predicting the proton range in the patient. This PhD work is applied to a new imaging device, the Imaging Ring (IR), which is a cone-beam CT (CBCT) scanner developed for image-guided radiotherapy (IGRT). The IR is equipped with a fast kV switching X-ray source, synchronized with a filter wheel, allowing for multi-energy CBCT imaging. The first contribution of this thesis is a method to calibrate a model for the X-ray source and the detector response to be used in X-ray image simulations. It has been validated experimentally on three CBCT scanners. Secondly, the investigations have evaluated the factors that have an impact on the outcome of the DE decomposition process, from the acquisition parameters to the post-processing. Both image- and projection-based decomposition domains have been thoroughly investigated, with special emphasis on projection-based approaches. Two novel DE decomposition bases have been proposed to estimate proton SPRs, without the need for an intermediate variable such as the effective atomic number. The last part of the thesis proposes an estimation of proton SPR maps of tissue characterization and anthropomorphic phantoms through DE-CBCT acquisitions with the IR. A correction for X-ray scattering has been implemented off-line, and a routine to linearly interpolate low-energy and high-energy sinograms from sequential and fast-switching DE acquisitions has been proposed to perform DE material decomposition in the projection domain with real data. DECT-derived SPR values have been compared with experimentally-determined SPR values in a carbon-ion beam
Burdette, Matthew E. "Theology for the revolution : a study of the political eschatologies of Robert W. Jenson and James H. Cone." Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=230704.
Повний текст джерелаLiu, Ming. "Power and code management in wireless networks." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1118933878.
Повний текст джерелаTitle from first page of PDF file. Document formatted into pages; contains xvi, 158 p.; also includes graphics. Includes bibliographical references (p. 147-158). Available online via OhioLINK's ETD Center
Bao, Wenlei. "Power Aware WCET Analysis." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1398937286.
Повний текст джерела虞愛 and Ai Yu. "A study of power control in CDMA overlay." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31241293.
Повний текст джерелаYu, Ai. "A study of power control in CDMA overlay /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22926033.
Повний текст джерелаNourizadeh, Sam. "Power control techniques for CDMA-based mobile systems." Thesis, University of Surrey, 2003. http://epubs.surrey.ac.uk/844068/.
Повний текст джерелаParra, Avila Benigno Rafael. "On Rational and Periodic Power Series and on Sequential and Polycyclic Error-Correcting Codes." Ohio University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1257886601.
Повний текст джерелаKwak, Yongjun. "Near Shannon Limit and Reduced Peak to Average Power Ratio Channel Coded OFDM." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10176.
Повний текст джерелаEngineering and Applied Sciences
Makido, Satoshi, Takaya Yamazato, Masaaki Katayama, and Akira Ogawa. "Hierarchical Transmission of Huffman Code Using Multi-Code/Multi-Rate DS/SS Modulation with Appropriate Power Control." IEICE, 1998. http://hdl.handle.net/2237/7208.
Повний текст джерелаCheng, Zhuo. "Hybrid Power Control in Time Division Scheduling Wideband Code Division Multiplex Access." Thesis, KTH, Kommunikationssystem, CoS, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-91097.
Повний текст джерелаMed den höga datahastighet som Enhanced Uplink (EUL) medger kan en konventionell algoritm för effektkontroll baserad på signal to interference ratio (SIR) leda till effekthöjning beroende på självinterferens eller felaktigt SIR mål. Time division (TD) schedulering vid Wideband Code Division Multiple Access (WCDMA) anses vara en nyckelfunktion för att uppnå höga datahastigheter. I övergången mellan aktiv och inaktiv transmissionstidsintervall vid time division multiplexing (TDM) har effektoscillering/effektpeak observerats. Detta gör det nödvändigt att se över algoritmerna för effektkontroll vid olika scenarion av TD schedulering. Målet med effektkontrollen i denna studie är att minimera rise over thermal noise (RoT) för en given datahastighet givet begränsningen att kvaliteten på physical layer control channel är tillräcklig (beaktande att dedicated physical control channel (DPCCH) SIR inte understiger 3dB med en sannolikhet på som mest 5%). Ett annat mål är att minimera den lokala effektoscillationen (effektpeakar) som kan inträffa till exempel vid övergång mellan aktiv och inaktiv transmissionstidsintervall. De undersökta hybrida metoderna för effektkontroll är: (1) icke-parametrisk Generalized rake receiver SIR (GSIR) Inner Loop Power Control (ILPC) vid aktiv transmissionstidsintervall + Received Signal Code Power (RSCP) ILPC vid inaktiv transmissionstidsintervall och (2) RSCP ILPC under aktiv transmissionstidsintervall + GSIR ILPC under inaktiv transmissiontidsintervall. Båda metoderna jämförs med ren GSIR och ren RSCP ILPC. Länk nivå simulering med flera användare anslutna till en enda cell visar att: Problemet med effektpeakar observeras tydligt vid GSIR + GSIR transmit power control (TPC) men generellt sett presterar den bra i alla studerade TD scenarion. GSIR presterar bättre än andra TPC metoder beträffande RoT, speciellt i TU kanal modellen. Detta beror på att metoden är bra på att motverka momentant förändrad fading och med god precision estimerar SIR. Bland alla presenterade TPC metoder är GSIR + GSIR TPC den bästa på att behålla en god kvalitet på DPCCH kanalen. Ingen effekthöjning har observerats vid GSIR + GSIR TPC. RSCP + RSCP eliminerar problemet med effektpeakar och presterar bättre än andra TPC metoder presenterade under 3GPPs Pedestrial A (pedA) 3km/h kanal beträffande RoT. Dock är metoden generellt sett sämre på att behålla kontrollkanalens kvalitet än GSIR + GSIR TPC. GSIR + GSIR ILPC eliminerar problemet med effektpeakar och presterar bättre än GSIR power control i ett scenario med 2 och 4 TDM high data rate (HDR) UE och 2 TDM HDR UE tillsammans med 4 Code Division Multiplex (CDM) LDR UE i pedA 3km/h kanalen beträffande RoT. Dock kan inte kvaliteten på kontrollkanalen behållas i detta fall heller under inaktiv transmissionstidsintervall. Det är inte rekommenderat att använda RSCP + GSIR TPC eftersom den presterar sämst av alla TPC metoder beträffande RoT i de allra flesta fall. Till dess fördel är att den är den näst bästa på att behålla kvaliteten på kontrollkanalen. Effektpeakar har observerats när RSCP + GSIR TPC använts. För att behålla kontrollkanalens kvalitet används alltid en minimum SIR nivå ovanpå alla föreslagna TPC metoder. När det finns flera anslutna TDM HDR UEs i cellen indikerar resultaten att det är en utmaning att behålla kvalitetskraven på kontrollkanalen. På grund av detta kan det bli nödvändigt att begränsa antalet anslutna terminaler i en cell i ett TD scenario.
Bendre, Vijay. "Power Electronic Control of a Partial Core Transformer." Thesis, University of Canterbury. Electrical and Computer Engineering, 2010. http://hdl.handle.net/10092/4927.
Повний текст джерелаAndreta, Andre. "Automatic Design for Manufacturing in Power Electronics Based on Power Converter Arrays." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT059.
Повний текст джерелаThis work presents an automatic design method for power electronic converters “Automatic Design for manufacturing” (ADFM). The method proposes to build power converter arrays (PCAs), by assembling standard-cells. The technique is highly inspired by the microelectronics industry, power electronics building blocks, and multicell converters. The power conversion stage of a PCA consists of several conversion standard cells (CSCs) connected in series and/or parallel.One of the primary basis for the proper functioning of the ADFM method is the use of models for predicting the behaviour of the possible assemblies of standard cells. This thesis establishes this base following a three-step procedure: defining a plan of experiments to choose the relevant measurements that bring the most information of the PCAs; building a test bench capable of performing automatic measurements and finally studying statistical modelling methods to perform accurate predictions.Experimental tests in nine different converters are performed, totalizing over 210 hours of tests. Predictions of efficiency and converter temperature made by the models are compared with real measurements to validate their accuracy. Finally, the models are employed for two main tasks: to assure that a given PCA in a given operating point has a safe operation; and to benchmark PCAs that perform similar power conversion
Tennant, Mark P. "Low power adaptive equaliser architectures for wireless LMMSE receivers." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/2565.
Повний текст джерелаSantilli, Vincent. "THE EFFECTS OF POWER DISTANCE, AND GENDER ON THE USE OF NONVERBAL IMMEDIACY BEHAVIORS IN SYMMETRICAL AND ASYMMETRICAL POWER COND." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3715.
Повний текст джерелаM.A.
Nicholson School of Communication
Sciences
Communication MA
Mazzoleni, E. "POTERE COME MODALITA' NORMATIVA NEL PENSIERO GIURIDICO GIAPPONESE." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/465137.
Повний текст джерелаWIGGERMANN, NEAL. "COMPLIANCE AND EVALUATION OF CODE FOR LOW ENERGY POWER OPERATED HANDICAP ACCESSIBLE DOORS." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187366086.
Повний текст джерелаKamal, Sabrina Sharmin. ""Come on powerful, come on my fresh green" : representations of the child and constructions of childhood in Rabindranath Tagore's writings for children." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/267967.
Повний текст джерелаKing, Gemma. "Multilingualism and Power in Contemporary French Cinema." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCA075.
Повний текст джерелаDialogue in languages other than French has appeared in a select number of films throughout the history of French cinema. Yet not only is multilingual dialogue vastly more present in twenty-first-century French film, but the use of multiple languages to (re)negotiate power dynamics is a striking narrative and thematic concern in contemporary French cinema. In multilingual film, the depiction of the status of a wide range of languages other than French is evolving from trivialised to deeply complex; through language learning and strategic code-switching, the characters of these films wrest power from one another and wield it in innovative ways. Exploiting their knowledge of a wide range of languages, from rival lingua francas like English to traditionally migrant or socio-politically marginalised languages such as Arabic or Kurdish, multilingual characters in these films offer a counter-perspective to dominating ideologies of the role and status of the French language.This thesis adopts a transnationalist approach to understandings of social power and language, analysing multilingual film through the framework of Ella Shohat and Robert Stam’s theory of polycentric multiculturalism, which “is about dispersing power, about empowering the disempowered, about transforming subordinating institutions and discourses” (Shohat and Stam 1994: 48). Unpacking the power dynamics at play in the multilingual film dialogue of four emblematic case studies (Polisse [Maïwenn 2011], Un prophète [Jacques Audiard 2009], Welcome [Philippe Lioret 2009] and London River [Rachid Bouchareb 2009]), the thesis posits that contemporary French multilingual films, henceforward referred to as CFMFs, represent a move towards revising the representation of language in French cinema, foregrounding the potential of languages other than French (even the maligned or historically disenfranchised) to empower their speakers and to transcend the traditional integrationist paradigm
Huang, Wei. "Performance of CDMA power control and admission control in multi-service cellular systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0007/NQ34270.pdf.
Повний текст джерелаSimonini, Giorgio. "Qualification du calcul de la puissance des coeurs de réacteurs à plaques : développement et application d'une nouvelle approche géostatistique." Thesis, Clermont-Ferrand 2, 2012. http://www.theses.fr/2012CLF22273.
Повний текст джерелаThe aim of this doctoral thesis work is to contribute to the experimental validation of a neutron physic code, called NARVAL, devoted to the analysis of slab cores reactors. The primary objective is to develop some innovative methods in order to validate the computed power map starting from the original experimental data, provided by the HIPPOCAMPE campaign. The particular position of the instrumentation (fission chambers located between the assemblies) and the strong heterogeneities, characterising this specific core design (slab geometry, burnable and control neutron absorbers in solid state) represent the main challenge of this work. Two different approaches are investigated : the first one consists in “combining and extrapolating” the observed calculated/experimental results in order to evaluate the uncertainty of power coefficients. Among different solutions, the “P/A” method is chosen : it is usually employed to perform conventional PWR plant analysis and has never been applied before to slab cores. The latter aims to reconstruct a power map that could be used as a direct reference for code validation : in this case the geostatistical techniques are selected. These methods provide satisfactory results as estimated errors are in good agreement with the experimental uncertainty target. Nevertheless, in this work a new hybrid method, applying the geostatistical technics to the P/A scheme, is investigated and developed. The good agreement between the experimental and the estimated validations of the computed power map attests the noteworthy performance of this new method
Rieser, Micha. "What can come of just hanging out? the power of politically oriented social groups /." CONNECT TO ELECTRONIC THESIS, 2007. http://dspace.wrlc.org/handle/1961/4114.
Повний текст джерелаSmola, Luděk. "Rozložení výkonu a teplot v palivových souborech reaktoru VVER-440 na Elektrárně Dukovany." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242044.
Повний текст джерелаChild, Ryan. "Performance and Power Optimization of Parallel Discrete Event Simulations Using DVFS." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342730759.
Повний текст джерелаNgema, Silindile Lucia. "Competitive biosorption of a mixture of cationic dyes from a multicomponent solution using modified pine cone powder." Thesis, Vaal University of Technology, 2012. http://hdl.handle.net/10352/394.
Повний текст джерелаJonsson, Carla. "Code-switching in Chicano Theater : Power, Identity and Style in Three Plays by Cherríe Moraga." Doctoral thesis, Umeå University, Modern Languages, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-498.
Повний текст джерелаThe thesis examines local and global functions of code-switching and code-mixing in Chicano theater, i.e. in writing intended for performance. The data of this study consists of three published plays by Chicana playwright Cherríe Moraga.
Distinguishing between code-switching and code-mixing, the investigation explores local and global functions of these phenomena. Local functions of code-switching are functions that can be seen in the text and, as a consequence, can be regarded as meaningful for the audience of the plays. These functions are examined, focussing on five loci in which code-switching is frequent and has clear local functions. The loci are quotations, interjections, reiterations, ‘gaps’ and word/language play.
Global functions of code-switching and code-mixing operate on a higher level and are not necessarily detected in the actual texts. These functions are discussed, focussing on two main areas, namely power relations (addressing questions of domination, resistance and empowerment) and identity construction (addressing questions of how identity can be reflected by use of language and how identity is constructed and reconstructed by means of language).
The study suggests that code-switching fills creative, artistic and stylistic functions in the plays and that code-switching and code-mixing can serve as responses to domination in that they can be used to resist, challenge and ultimately transform power relations.
Menezes, Valerian M. "The executive power of the diocesan bishop according to the 1983 Code of Canon Law." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/29061.
Повний текст джерелаJonsson, Carla. "Code-switching in Chicano theater : power, identity and style in three plays by Cherríe Moraga /." Umeå : Institutionen för moderna språk, Umeå universitet, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-498.
Повний текст джерелаDraganescu, Mihai. "Study of supercritical coal-fired power plant dynamic responses and control for grid code compliance." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/73963/.
Повний текст джерелаWeight, Donovan Stoddard. ""Come Recently from Guinea": Control and Power in the African-Descended Illinois Country, 1719-1848." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/dissertations/227.
Повний текст джерелаBatista, Fabio. "Sobre poder e corpo em Foucault." Universidade Estadual de Londrina. Centro de Letras e Ciências Humanas. Programa de Pós-Graduação em Filosofia, 2015. http://www.bibliotecadigital.uel.br/document/?code=vtls000199357.
Повний текст джерелаThe research bears the subject power and body on Foucault?s philosophy. The kick up point was the following issue: why does such issue, beginning from the studies of discipline, got an outstanding role in early 1970? And thus having an outstanding spot in the 70s, between the objects and issues investigated by Foucault, what treatment did it receive? How was it thought over? Our hypothesis was that issues such as institutions, admission to the hospitals, resting home therapeutics, hospital and medicine indicated Foucault?s attention towards power in the 60s. As far as body is concerned it has been connected to the studies of medical view as well as the utopian body. All of it pointed that there was in Foucault, before the 70s, a study on power and body. Eventually, it turned out a positive outcome: between a decade and another there are contact points and interrelated subjects: from hospital admission, from hospital to discipline; from teachers, and from utopian body to docile and serviceable body.
Calabretta, Jacob S. "A Three Dimensional Vortex Particle-Panel Code For Modeling Propeller-Airframe Interaction." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/336.
Повний текст джерелаKarim, Md Anisul. "Weighted layered space-time code with iterative detection and decoding." Thesis, The University of Sydney, 2006. http://hdl.handle.net/2123/1095.
Повний текст джерелаKarim, Md Anisul. "Weighted layered space-time code with iterative detection and decoding." School of Electrical & Information Engineering, 2006. http://hdl.handle.net/2123/1095.
Повний текст джерелаMultiple antenna systems are an appealing candidate for emerging fourth-generation wireless networks due to its potential to exploit space diversity for increasing conveyed throughput without wasting bandwidth and power resources. Particularly, layered space-time architecture (LST) proposed by Foschini, is a technique to achieve a significant fraction of the theoretical capacity with a reasonable implementation complexity. There has been a great deal of challenges in the detection of space-time signal; especially to design a low-complexity detector, which can efficiently remove multi-layer interference and approach the interference free bound. The application of iterative principle to joint detection and decoding has been a promising approach. It has been shown that, the iterative receiver with parallel interference canceller (PIC) has a low linear complexity and near interference free performance. Furthermore, it is widely accepted that the performance of digital communication systems can be considerably improved once the channel state information (CSI) is used to optimize the transmit signal. In this thesis, the problem of the design of a power allocation strategy in LST architecture to simultaneously optimize coding, diversity and weighting gains is addressed. A more practical scenario is also considered by assuming imperfect CSI at the receiver. The effect of channel estimation errors in LST architecture with an iterative PIC receiver is investigated. It is shown that imperfect channel estimation at an LST receiver results in erroneous decision statistics at the very first iteration and this error propagates to the subsequent iterations, which ultimately leads to severe degradation of the overall performance. We design a transmit power allocation policy to take into account the imperfection in the channel estimation process. The transmit power of various layers is optimized through minimization of the average bit error rate (BER) of the LST architecture with a low complexity iterative PIC detector. At the receiver, the PIC detector performs both interference regeneration and cancellation simultaneously for all layers. A convolutional code is used as the constituent code. The iterative decoding principle is applied to pass the a posteriori probability estimates between the detector and decoders. The decoder is based on the maximum a posteriori (MAP) algorithms. A closed-form optimal solution for power allocation in terms of the minimum BER is obtained. In order to validate the effectiveness of the proposed schemes, substantial simulation results are provided.
Kuo, Hoi. "A study of crest factor reduction for WCDMA and IS-95 systems." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B38778026.
Повний текст джерелаBülow, Fredrik. "A Generator Perspective on Vertical Axis Wind Turbines." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-197855.
Повний текст джерелаMiller, Michael A. "21st century roles and missions : identifying Air Force core competencies and core capabilities /." Maxwell AFB, Ala. : School of Advanced Air and Space Studies, 2008. https://www.afresearch.org/skins/rims/display.aspx?moduleid=be0e99f3-fc56-4ccb-8dfe-670c0822a153&mode=user&action=downloadpaper&objectid=4424120d-705b-40e2-a107-0aead299c5d9&rs=PublishedSearch.
Повний текст джерелаPayami, Maryam. "Instruction prefetching techniques for ultra low-power multicore architectures." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/12462/.
Повний текст джерелаNaveed, Muhammad. "Multicore Optimized Real-Time Protocol for Power Control Networks." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-90367.
Повний текст джерелаLindström, Åsa. "Using Architectural Principles to make the IT-Strategy come true : focusing on the electric power ndustry." Doctoral thesis, KTH, Industriella informations- och styrsystem, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4130.
Повний текст джерелаQC 20100908
Lindström, Åsa. "Using architectural principles to make the IT-strategy come true : focusing on the electric power industry /." Stockholm : Industrial Information and Control Systems, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4130.
Повний текст джерелаKoh, W. J. "Radiation hazard evaluation for a high power mobile electromagnetic radiation weapon using the numerical electromagnetic code." Thesis, Monterey, California: U.S. Naval Postgraduate School, 1987. http://hdl.handle.net/10945/22448.
Повний текст джерелаMulligan, Thomas C. "Lest the Rebels Come to Power: The Life of William Dennison, 1815-1882, Early Ohio Republican." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1384511018.
Повний текст джерелаMulligan, Thomas Cecil. "Lest the rebels come to power: the life of William Dennison, 1815-1882, early Ohio Republican /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu148785391310222.
Повний текст джерелаZaborowski, Jeremy Ronald. "Valuation of an advanced combined cycle power plant and its cost of new entry (CONE) into the ERCOT market." Thesis, 2014. http://hdl.handle.net/2152/26019.
Повний текст джерелаtext
Lin, Sheng-Chang, and 林聖昌. "Conical Nanopore : Influences of Cone Angle on the Ion Current Rectification Behavior and Influences of Diffusion Direction on Salinity Gradient Power." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/fuxmjv.
Повний текст джерела國立臺灣大學
化學工程學研究所
105
Due to its potential applications in biotechnology, ion current rectification (ICR) arising from the asymmetric nature of ion transport in a nanochannel has drawn the attention of researchers in various fields. In the former, the influences of the cone angle, surface charge density, and bulk salt concentration on this behavior are investigated, and mechanisms proposed to explain the results obtained. We show that if the cone angle is enlarged by fixing the nanopore tip radius and raising its base radius, the ICR ratio has a local maximum. This behavior may not present if the cone angle is enlarged by fixing the nanopore base radius and raising its tip radius. This ratio also has a local maximum as the surface charge density varies and the larger the cone angle the higher the surface charge density at which the local maximum in the ICR ratio occurs. In the latter, to assess the possibility of energy harvesting through reverse electrodialysis (RED), we consider the electrokinetic behavior of the ion transport in a pH-regulated conical nanopore connecting two large reservoirs having different bulk salt concentrations. In particular, the influences of the ion diffusion direction, the solution pH, and the bulk concentration ratio on that behavior are examined in detail, and the underlying mechanisms discussed. We show that the geometrically asymmetric nature of the nanopore yields profound and interesting phenomena arising mainly from the distribution of ions in its interior. We show that a power of 18.3 pW can be generated, and the maximum power efficiency of 0.53 achieved from a PET nanopore
Viswanath, G. "Robustness And Localization In Time-Varying Spectral Estimation." Thesis, 1997. http://etd.iisc.ernet.in/handle/2005/1814.
Повний текст джерела"The effective cone on symmetric powers of curves." STATE UNIVERSITY OF NEW YORK AT STONY BROOK, 2009. http://pqdtopen.proquest.com/#viewpdf?dispub=3338163.
Повний текст джерелаchen, chun-pei, and 陳群霈. "Power-Density Code Transformation for Functional Units." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/93974365853419945083.
Повний текст джерела國立中正大學
資訊工程所
98
Due to the progress of semiconductor technology, the number of transistors is more increasing in the chip leads to the rapid growth of the power density, and bringing a critical problem of temperature elevation. The power density for the function unit(FU) in the chip is exceedingly disproportionate, thus causes the high temperature of the locality die. The high temperature of the chip incurs to consume much power, degrades the performance, reduces the processor reliability, and even damages the hardware. The most of pervious work raises the same functional units to distribute the workload for thermal decreasing. The method is useful, but it increases the more hardware cost. In our thesis, we propose a method that exploiting the idle and different functional units to migrate overheating functional units without any hardware cost. But the different units can not directly execute instructions of overheating unit, and therefore it has to be transformed by our code transformation algorithm. Thus, we can succeed in more balancing FU thermal by idle and cooling unit. The experiment is performed on Sim-Panalyzer and HotSpot simulator to evaluate the power and temperature of functional units impact. In contrast without our algorithm, we can sufficiently use the hardware resource to reduce the overheating function unit situation.
蔡錫欣. "Low Power Bus Codec Scheme with Gray Code." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/88486942264081638468.
Повний текст джерела國立彰化師範大學
資訊工程學系
101
As technology advances, interconnect delay has become a significant element for circuit performance in deep sub-micrometers system on-chip designs. The data pattern dependent signal switching of crosstalk caused delays compels bus cycle time for the worst case in many digital processors. Because of on-chip bus power is dominated by the switching activities. So this method correlated switching and the proposed codec can effectively solve the above-mentioned problem. The paper are performed on 4-bits and 8-bits bus line based on TSMC 0.18μm, the experiment results show that, our codec reduces the average power by 58.47% and reduces the delay time by 14.3% compared to Bus-invert method.