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Dissertations / Theses on the topic 'Less number of semiconductor'

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1

Moghadam, Mansour Salehi. "Current-source-based low frequency inverter topology." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/12750.

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A DC to AC inverter can be classified in different topologies; some of these topologies are three level and multilevel inverter. Both types have some advantages and disadvantages. Three level inverters can be applied for low power applications because it is cheaper and has less semiconductor losses at high switching frequencies with poor total harmonic distortion (THD). Multilevel inverters (MLI) can be applied for higher power applications with less THD. However, the MLI has more cost and conductive power losses in comparison with three level inverters. In order to overcome the limitations of
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2

Saiter, Jean-Marc. "Coordinence des atomes de bismuth dans les alliages amorphes de sélénium bismuth : étude par relaxation structurelle et mesure de conductivité." Rouen, 1986. http://www.theses.fr/1986ROUES022.

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La relaxation structurale a été étudiée par analyse thermique différentielle. Les mesures de conductivité permettent d'expliquer l'inversion des porteurs majoritaires observée dans SeBi lorsque la quantité de Bi croît
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3

RAJASEKARAN, RAJASUNDARAM. "Dependence of LASER Performance on Number of Quantum Wells InAIGaAs Semiconductor LASERS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155791964.

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4

Barba, Lorena A. Leonard Anthony. "Vortex method for computing high-Reynolds number flows : increased accuracy with a fully mesh-less formulation /." Diss., Pasadena, Calif. : California Institute of Technology, 2004. http://resolver.caltech.edu/CaltechETD:etd-05282004-030854.

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5

Rodríguez, Rodríguez Carlos. "Synthesis and characterization of semiconductor thin films through low-toxic and less expensive techniques, to be used as solar materials." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/247379.

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In thin films solar cells technology, many different materials have been used; however, toxic and expensive materials and techniques have been widely employed up to date. In this work, three different low/non-toxic materials were grown by means simple and cheap techniques.Cd1–xZnxS thin films with Zn concentrations of 0–5 at.% were analyzed. The effect of the addition of different molar Zn concentrations to the reaction mixture on the growth mechanism of Cd1–xZnxS thin films and the influence of these mechanisms on structural, optical and morphological properties of the films has been studied.
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6

Chaillout-Bougerol, Catherine. "Contribution à l'étude du système BaPb(1-x)Bi(x)O(3) : relations entre les propriétés structurales, chimiques et physiques." Grenoble 1, 1986. http://www.theses.fr/1986GRE10017.

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Etude de la solution solide du titre du fait de l'interet suscite par ses proprietes physiques : phrase supraconductrice pour 0,05 x 0,30 avec tc# 13k, transition metal-semiconducteur pour x # 0,30. La structure de ces composes est de type perovskite. Selon la concentration en pb et bi, la structure de base cubique se deforme differemment. Etude de la valence de bi et de la stoechiometrie en oxygene, dans babi0::(3) en particulier. Proposition de modeles qui permettent de concilier divers resultats publies anterieurement concernant les proprietes structurales et physiques
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7

Venugopalan, Natarajan. "Model to estimate the number of sessions handled by conference server in session initiation protocol conferencing solution with less delay and the optimum processing capacity." Thesis, Wichita State University, 2009. http://hdl.handle.net/10057/2542.

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The recent introduction of conferencing products such as telepresence has led to immense growth in the number of voice conferencing calls on the internet protocol (IP) network. Currently, voice conferencing users are provided with many options, such as free session initiation protocol (SIP) soft phone and voice over internet protocol (VOIP) calls at a lower rate. As technology and social networking sites continue to grow, there is a good possibility that these sites could be integrated with VOIP conferencing solution, which would lead to enormous growth in IP voice traffic. The recent addition
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8

Oliver, Andreu Neus. "Complex dynamics in photonic delay systems: a story of consistency and unpredictability." Doctoral thesis, Universitat de les Illes Balears, 2015. http://hdl.handle.net/10803/378032.

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- Introducció Photonic systems are powerful test-beds for the investigation of complex dynamics emerging from delays in feedback or coupling. The aim of this thesis was to study two relevant properties of photonic delay systems with direct applications in current information processing and encryption systems: consistency and unpredictability. We characterized the ability of laser systems with delay to exhibit, on the one hand, reliable complex dynamics when an external stimulus is applied, and on the other hand, unpredictable complex behavior, depending on the operating conditions. Consi
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9

MONDOLONI, CHRISTIAN. "Contribution a l'etude de la valence anormale de l'ytterbium et du thulium dans yb : :(1-x)tm::(x)se et yb::(1-y)tm::(y)s." Paris 7, 1988. http://www.theses.fr/1988PA077122.

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Etude experimentale de l'instabilite de la valence des atomes de tm en fonction de la concentration dans les composes du titre. On mesure la valence des atomes de tm par susceptibilite magnetique et absorption rx, et on met en evidence une divergence de resultats par ces deux methodes. On met en evidence une transition metal-semiconducteur pour x=0,84, un ordre antiferromagnetique a 1,5 k, une magnetoresistivite negative. L'etude des sulfures amene a interpreter les proprietes de transport dans le domaine y >ou= 0,08 pour t>15 k par l'effet kondo
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10

Lemoine, Pascale. "Combinaisons ternaires soufrées formées par l'europium et un second métal : exemples de dérivés de l'europium à valence mixte; synthèse, structures et propriétés physiques." Paris 6, 1986. http://www.theses.fr/1986PA066416.

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L'études des combinaisons ternaires soufrées formées par l'europium et un second métal conduit dans de nombreux cas a des composes qui ne contiennent que de l'europium divalent, tels que Eu3Sb4S9, EuLn2S4 (Ln: Dy—Lu, Y) et Eu1,1Bi2S4. . Dans ces trois composes Eu (ii) présente un environnement 8-prismatique et le second métal, un environnement octaédrique. Dans Eu3Sb4S9, le doublet 5s2 non-engagé de Sb (iii) crée de larges tunnels au sein de la structure. Les composés EuLn2S4 ont une structure de type CaFe2O4. Le réseau du composé Eu1, 1Bi2S4 contient de larges canaux partiellement occupés par
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11

Chuang, Tzu-Hsien, and 莊子賢. "Enhancing the Risk Priority Number in FMEA for Semiconductor Process Improvement." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/92483146101697222570.

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碩士<br>國立清華大學<br>工業工程與工程管理學系<br>102<br>Failure Mode and Effects Analysis Method (FMEA) is widely used in the semiconductor process improvement activities, including the Risk priority number (RPN) which is used to determine the impact of failure mode on the system basis. The risk priority number supports decision-makers to make the correct judgment to avoid unnecessary waste on improvement and missed opportunity to improve the high-risk crisis. But the traditional RPN method has high repetition, ineffective order comparison on Severity, Occurrence, Detection (SOD), and no account for the failure
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12

Barba, Lorena A. "Vortex Method for Computing High-Reynolds Number Flows: Increased Accuracy with a Fully Mesh-Less Formulation." Thesis, 2004. https://thesis.library.caltech.edu/2185/1/barbaTHES.pdf.

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<p>For the applications of high Reynolds number flows, the vortex method presents the advantage of being free from numerically dissipative truncation error. In practice, however, many vortex methods introduce some numerical dissipation in mesh-based spatial adaption stages, or schemes such as vortex particle splitting. The need for spatial adaption in vortex methods arises from the Lagrangian framework, which results in an increase of discretization error over time. Presently, a vortex method is devised that incorporates radial basis function (RBF) interpolation to provide spatial adaption in
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13

Po-JyunChiou and 邱柏鈞. "A Simulation-Optimization Approach for Workstation Number Planning at Semiconductor Wafer Fabrication Systems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/22790138373455364636.

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碩士<br>國立成功大學<br>土木工程學系<br>103<br>The semiconductor manufacturing factory is a very complicated place. In this thesis we develop a simulation- and Genetic Algorithm-based optimization method to systematically solve for an ideal number of workstations deployed for each tool groups. A three-layered discrete event simulation system represents a semiconductor factory, and a Genetic Algorithm-based scheme optimizes the number of active workstations for each tool group. Several scenarios are studied, and it is found that workstation failures result in significant additional number of workstations nee
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14

Ou, Lan-Fang, and 歐蘭芳. "Explore HHI, the number of patent citations, the number of inventors on the impact of corporate performancein the U.S. semiconductor industry." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/06766925197610207363.

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碩士<br>國立臺北大學<br>企業管理學系<br>102<br>In recent years, high-tech patent wars continue to unfold, more and more companies to patent infringement legal means to resolve commercial competition. According to the U.S. Patent Office statistics, in recent years been used approved patent infringement litigation, up to thirty percent annual growth ; patent is often used to measure the kinetic energy of innovative enterprises, can also be used to measure the company's future growth potential and competitiveness, thus many studies using patent indicators to measure performance and view corporate R & D strateg
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Ou, Lan-Fang, and 歐蘭芳. "Explore HHI, the number of patent citations, the number of inventors on the impact of corporate performance in the U.S. semiconductor industry." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/47pwr4.

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碩士<br>國立臺北大學<br>企業管理學系<br>102<br>In recent years, high-tech patent wars continue to unfold, more and more companies to patent infringement legal means to resolve commercial competition. According to the U.S. Patent Office statistics, in recent years been used approved patent infringement litigation, up to thirty percent annual growth ; patent is often used to measure the kinetic energy of innovative enterprises, can also be used to measure the company's future growth potential and competitiveness, thus many studies using patent indicators to measure performance and view corporate R & D strateg
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16

Tao, Jianchen. "Pixel-less and Pixel-lated Inorganic/Organic Hybrid Infrared Imaging Upconversion Devices." Thesis, 2013. http://hdl.handle.net/10012/7227.

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Nowadays, the industrial standard for infrared imaging systems is to interconnect an infrared photodetector array with a silicon-based read-out-integrated circuit pixel by pixel through existing indium bumping technology for infrared scene detection and then the signal is output optically through a LCD or other imaging devices. Motivated by the high-cost and low-resolution of such configurations, technology that up-converts infrared light to visible light and in particular, an inorganic/organic hybrid imaging upconverter has been developed. The end goal was to provide a high-efficiency and hig
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17

Huang, Hsing-Jui, and 黃星睿. "The Influence of Number of Inventors, Patent Relative Technology Advantage, and Patent Concentration upon the Corporate Performance of the American Semiconductor Companies." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/99134112764337138806.

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碩士<br>國立臺北大學<br>企業管理學系<br>100<br>This study uses patent analysis to explore the corporate performance of the American semiconductor industry by use of artificial neural network (ANN). Besides, this paper explores the nonlinear influences of number of inventors, patent relative technology advantage, patent concentration, and upon corporation performance of the American semiconductor companies. The results show that number of inventors and relative technological advantage has a nonlinearly and monotonically positive influence upon the corporation performance. However, patent concentration has ne
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18

Wang, Kuo Jui, and 王國叡. "Suppression of the Time Delay Signature and Development of Random Number Generator in Chaotic Semiconductor Lasers by Loss-Compensated Recirculating Delayed Self-Heterodyne." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/7tfhbk.

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碩士<br>國立清華大學<br>光電工程研究所<br>105<br>Semiconductor laser can generate various nonlinear dynamical states by the action of optical feedback (OF) system including periodic-one oscillation state (P1), quasi-periodic oscillation state (QP), chaotic oscillation state (C) and so on. Through the calculation of autocorrelation of time series in chaotic oscillation state, we can find the time delay signature (TDS). This phenomenon is unfavorable to apply in random number generator~(RNG) because of it's special periodicity. In this study, TDS is suppressed and random number is generated by different interf
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19

Liao, Yin-Ting, and 廖胤婷. "Exploring the Dynamic Relationship between R&D Expenses and the Number of Patents: An Empirical Study of the Semiconductor Industry in Taiwan." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/wvb793.

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碩士<br>國立交通大學<br>管理學院經營管理學程<br>107<br>This study uses the two major databases of Taiwan Economic Journal (TEJ) database and WEBPAT to study the growth trend of Taiwan's semiconductor industry R&D expenses changes and patents granted to resident changes. This study will be based on data for the past nine years (2010-2018). Explore and examine the moderating effects of growth trends in the upper, middle and lower reaches of the semiconductor industry. The empirical results of the study show that: first, listed semiconductor companies, the growth of R&D expenses changes and the growth of patent ri
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20

Martins, Ana Filipa Silva. "Pobreza e microcrédito na Ásia." Master's thesis, 2014. http://hdl.handle.net/1822/30538.

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Dissertação de mestrado em Economia Monetária Bancária e Financeira<br>O microcrédito define-se como um empréstimo de pequeno montante concedido a indivíduos em situação de pobreza e exclusão social, ou sem acesso ao sistema bancário tradicional, mas com capacidade de iniciativa e empreendedorismo para criar o seu próprio negócio. Desde as primeiras iniciativas, na década de 1970, até aos dias de hoje, o microcrédito expandiu-se pelo globo terrestre, sendo considerado uma ferramenta eficaz contra a pobreza dos indivíduos mutuários e suas famílias, contra a exclusão social, e potenciador
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21

SOUMAROVÁ, Michaela. "Analýza výskytu vybraných zoonóz v Jihočeském kraji." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-188181.

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This diploma thesis is focused on the evaluation of six selected zoonoses with the occurrence in South Bohemia (campylobacteriosis, salmonellosis, listeriosis, tick-borne meningoencephalitis, Lyme borreliosis, tularemia) between the years 2003-2013. Campylobacteriosis and salmonellosis were evaluated the most common zoonoses in the South Bohemian Region during the monitored period. Their common feature is the alimentary transmission. Between 2003 to 2008 salmonellosis recorded the highest number of reported cases, on the contrary, campylobacteriosis has reported the highest number of occurrenc
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