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Dissertations / Theses on the topic 'Intrinsic noise'

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1

Qu, Song. "Non-Intrinsic Differential-Mode Noise in Switching Power Supplies and Its Implications to EMI Filter Design." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/9788.

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Electromagnetic Interference (EMI) problems in switching power supplies have been traditionally treated with cut-and-try approaches. In recent years, advancement has been made to better understand the problems and minimize the cut-and-try portion of the design process. However, there are still phenomena difficult to explain in many practical design situations. Often, the problems may be solved by luck but many puzzles remain unsolved. If not fully understood, these puzzles are very likely to come back to haunt the designers. According to the conventional theory, there are two modes of nois
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2

Hortsch, Sayuri Katharina [Verfasser], Andreas [Akademischer Betreuer] Kremling, Andreas [Gutachter] Kremling, and Christina [Gutachter] Kuttler. "Model-based characterization of intrinsic noise in multistable genetic circuits / Sayuri Katharina Hortsch ; Gutachter: Andreas Kremling, Christina Kuttler ; Betreuer: Andreas Kremling." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1171425600/34.

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3

Murrugarra, Tomairo David M. "Algebraic Methods for Modeling Gene Regulatory Networks." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/28388.

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So called discrete models have been successfully used in engineering and computational systems biology. This thesis discusses algebraic methods for modeling and analysis of gene regulatory networks within the discrete modeling context. The first chapter gives a background for discrete models and put in context some of the main research problems that have been pursued in this field for the last fifty years. It also outlines the content of each subsequent chapter. The second chapter focuses on the problem of inferring dynamics from the structure (topology) of the network. It also discusses the c
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4

Xie, Zhi. "Modelling genetic regulatory networks: a new model for circadian rhythms in Drosophila and investigation of genetic noise in a viral infection process." Phd thesis, Lincoln University. Agriculture and Life Sciences Division, 2007. http://theses.lincoln.ac.nz/public/adt-NZLIU20070712.144258/.

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In spite of remarkable progress in molecular biology, our understanding of the dynamics and functions of intra- and inter-cellular biological networks has been hampered by their complexity. Kinetics modelling, an important type of mathematical modelling, provides a rigorous and reliable way to reveal the complexity of biological networks. In this thesis, two genetic regulatory networks have been investigated via kinetic models. In the first part of the study, a model is developed to represent the transcriptional regulatory network essential for the circadian rhythms in Drosophila. The model
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Saygun, Yakup. "Computational Stochastic Morphogenesis." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-257096.

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Self-organizing patterns arise in a variety of ways in nature, the complex patterning observed on animal coats is such an example. It is already known that the mechanisms responsible for pattern formation starts at the developmental stage of an embryo. However, the actual process determining cell fate has been, and still is, unknown. The mathematical interest for pattern formation emerged from the theories formulated by the mathematician and computer scientist Alan Turing in 1952. He attempted to explain the mechanisms behind morphogenesis and how the process of spatial cell differentiation fr
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6

Andrade, Maria Glória Caño de. "Estudo de transistores de porta tripla de corpo." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3140/tde-10062013-150025/.

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O objetivo principal deste trabalho é o estudo de transistores MuGFETs de porta tripla de Corpo de canal tipo-n com e sem a aplicação da configuração DTMOS. Este estudo será realizado através de simulações numéricas tridimensionais e por caracterizações elétricas. A corrente de dreno, a transcondutância, a resistência, a tensão de limiar, a inclinação de sublimiar e a Redução da Barreira Induzida pelo Dreno (DIBL) serão analisadas em modo DTMOS e em configuração de polarização convencional. Importantes figuras de mérito para o desempenho analógico como transcondutância-sobre-corrente de dreno,
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7

Deloupy, Alexandre. "Expression stochastique des gènes chez Bacillus subtilis." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS443.

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Une population d'individus génétiquement identiques partageant le même environnement présente une certaine variabilité phénotypique résiduelle. Cette hétérogénéité découle de la nature stochastique, ou aléatoire, de l'expression des gènes, également appelée bruit. Cette stochasticité résulte d'une part de la rencontre aléatoire d'espèces chimiques pendant la transcription et la traduction (bruit intrinsèque), et d'autre part des fluctuations dans la concentration de ces substances chimiques (bruit extrinsèque). Un modèle stochastique ne faisant intervenir que le bruit intrinsèque prédit que la
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8

Al, Roumi Fosca. "Théorie Lagrangienne Relativiste de la Formation des Grandes Structures : description Intrinsèque des Perturbations et Gravitoélectromagnétisme." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10136/document.

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La dynamique de formation des structures de l'Univers est habituellement décrite dans le cadre du modèle standard de Cosmologie. Cependant, pour que les observations cosmologiques soient cohérentes avec le modèle standard, il est nécessaire de supposer l'existence d'une grande proportion d'éléments de nature inconnue dans le contenu de l'Univers. Pour tenter de résoudre cette énigme, nous ne considèrerons pas d'autres sources dans le contenu de l'Univers que celles ordinaires et resterons dans le cadre de la Relativité Générale. Nous développerons néanmoins une description plus réaliste de la
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9

Chung, Tien-Shen, and 鍾天伸. "Intrinsic noise in genetic regulation networks." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/23227796124027063488.

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碩士<br>中原大學<br>應用物理研究所<br>95<br>In this thesis, we investigate the intrinsic noise in transcription and translation level of genetic regulation networks without environmental conditions. The genetic regulation networks can be mathematically described by rate equations. To obtain the stochastic features of the system, the macroscopic rate equation is first rewritten as the stochastic master equation, and then expansion method is used to obtain the linear noise Fokker-Planck equation. We use the linear noise Fokker-Planck equation to analyze the stochastic fluctuations in the regulation networks
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10

Lin, Yi-Min, and 林益民. "Lossy Substrate De-embedding Method for RF MOSFET Intrinsic Noise Extraction." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/45213202486085666236.

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碩士<br>國立交通大學<br>電子工程系所<br>94<br>For sub-100nm MOSFETs with the gate length scaling to 80 nm and 65 nm, the unit current gain cut off frequency (fT) can achieve as high as 100 GHz and 165 GHz, respectively. However, the as-measured noise figure shows no much difference between 80 nm and 65 nm devices. The minimum noise figure (NFmin) is even higher than 5dB at 10GHz under gate bias responsible for the maximum fT. Strong finger number dependence of noise figure was also observed. All the mentioned phenomena can not be simply explained by gate resistance reduction through multi-finger structure.
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11

Li, Tien-Yeh, and 李典燁. "Intrinsic Parameter Variability Induced Static Noise Margin Fluctuation in Nano-CMOS SRAM Cells." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/90375348331205719804.

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碩士<br>國立交通大學<br>電信工程系所<br>97<br>As the dimension of complementary metal-oxide-semiconductor (CMOS) devices shrunk into sub-65nm scale, the threshold voltage Vth fluctuation is pronounced and becomes crucial for the design window, yield, noise margin, stability, and reliability of ultra large-scale integration circuits. Various randomness effects resulted from the random nature of manufacturing process have induced significant fluctuations of electrical characteristics in nanometer scale (nanoscale) devices and circuits. In this thesis, a three-dimensional “atomistic” coupled device-circuit sim
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12

Ou, Jyun-Rong, and 歐俊榮. "New Methods for Intrinsic Parasitic RLC Extraction and Small signal Equivalent Circuit Models for High Frequency and RF Noise Simulation in 3T and 4T Nanoscale Multi-finger MOSFETs." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/3j8eev.

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碩士<br>國立交通大學<br>電子研究所<br>106<br>In this thesis, an extensive investigation has been performed on the three- and four-terminal (3T and 4T) multi-finger nMOSFETs for precise extraction of intrinsic parasitic RLC and development of truly accurate intrinsic MOSFET model aimed at high frequency and RF noise simulation for nano-CMOS RF circuits design. Gate resistance (Rg), source resistance (Rs,int), and gate sidewall as well as finger-end fringing capacitances (Cof and Cf(poly-end)) appear as most important intrinsic parasitic RC with critical impact on high frequency performance and RF noise, and
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13

Liang, Yu-Tang, and 梁育堂. "New Methods for Accurate Extraction of Intrinsic RF and AC Performance and Equivalent Circuit Models for High Frequency and RF Noise Simulation in Nanoscale MOSFETs with Various Layouts." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5shvua.

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碩士<br>國立交通大學<br>電子研究所<br>106<br>In this thesis, one of our new proprietary structures, namely multi-finger field device has been designed and implemented in nanoscale CMOS processes like TN90GUTM and TN40G to realize direct and precise extraction of the gate sidewall and finger-end fringing capacitances, denoted as Cof and Cf(polyend). For the first time, the experimental Cof and Cf(polyend) can be achieved to serve as useful database for a serious calibration on the 3-D interconnect RC simulation like Raphael. Moreover, the multi-finger field devices can enable another innovative application
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14

Song, Cheng-Yan, and 宋程硯. "Physical decomposition of intrinsic and extrinsic noises in biochemical networks." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/v2snfs.

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碩士<br>國立交通大學<br>物理研究所<br>104<br>It is rather often that intrinsic and extrinsic noises coexist in a biological system. A typical example is the transcription and translation of DNA. This raises numerous works devoting to decomposing these two effects. Apart from the previous definition of intrinsic and extrinsic noises from biological aspect, this work adopts the definition of van Kampen from physical aspect. Based on that definition, we perturb the chemical master equation and derive a physical version of decomposition formula for intrinsic and extrinsic noises. We apply this theory to the ne
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15

Toutounji, Hazem. "Homeostatic Plasticity in Input-Driven Dynamical Systems." Doctoral thesis, 2015. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2015022613091.

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The degree by which a species can adapt to the demands of its changing environment defines how well it can exploit the resources of new ecological niches. Since the nervous system is the seat of an organism's behavior, studying adaptation starts from there. The nervous system adapts through neuronal plasticity, which may be considered as the brain's reaction to environmental perturbations. In a natural setting, these perturbations are always changing. As such, a full understanding of how the brain functions requires studying neuronal plasticity under temporally varying stimulation conditions,
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