• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 144
  • 133
  • 20
  • 14
  • 13
  • 4
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 381
  • 381
  • 149
  • 148
  • 100
  • 53
  • 51
  • 43
  • 42
  • 40
  • 39
  • 37
  • 35
  • 35
  • 29
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Non-Markovian master equations in linear quantum systems. / 一般量子系統非馬可夫領域的主方程 / Non-Markovian master equations in linear quantum systems. / Yi ban liang zi xi tong fei Makefu ling yu de zhu fang cheng

January 2011 (has links)
Chang, Kwong Wa = 一般量子系統非馬可夫領域的主方程 / 張光華. / "October 2010." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 89-92). / Abstracts in English and Chinese. / Chang, Kwong Wa = Yi ban liang zi xi tong fei Makefu ling yu de zhu fang cheng / Zhang Guanghua. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Born-Markov Master Equations --- p.4 / Chapter 2.1 --- Master Equations from von Neumann equation --- p.4 / Chapter 2.2 --- Born Approximation --- p.6 / Chapter 2.3 --- Markov Approximation --- p.8 / Chapter 2.4 --- Born-Markov Approximation --- p.10 / Chapter 2.5 --- Lindblad Equation --- p.12 / Chapter 2.6 --- The Limitations of the Born-Markov Approximation --- p.16 / Chapter 2.7 --- Beyond Born and Markov Approximations --- p.20 / Chapter 2.7.1 --- General projection operator approach --- p.20 / Chapter 2.7.2 --- Time-local form of the master equation --- p.21 / Chapter 3 --- TCL non-Markovian Master Equation for Linear Systems --- p.24 / Chapter 3.1 --- Model --- p.24 / Chapter 3.2 --- The General Structure of the TCL non-Markovian Master Equation for Initially Factorizable States --- p.27 / Chapter 3.3 --- Determination of Unknown Coefficients --- p.32 / Chapter 3.4 --- Weak-Coupling Approximation --- p.46 / Chapter 3.5 --- Steady State Solutions --- p.51 / Chapter 4 --- An Application: Coherence Protection by Parity Kicks --- p.54 / Chapter 4.1 --- Review on Parity Kicks --- p.54 / Chapter 4.2 --- Parity Kicks oil Damped Harmonic Oscillators --- p.58 / Chapter 4.3 --- Numerical Results for Soft Pulses --- p.61 / Chapter 5 --- Other Initial States --- p.67 / Chapter 5.1 --- Factorizable States --- p.67 / Chapter 5.2 --- Non-Factorizable States --- p.73 / Chapter 6 --- Non-Markovianity --- p.75 / Chapter 6.1 --- The Concept of non-Markovianity --- p.75 / Chapter 6.2 --- A Recent Measure --- p.76 / Chapter 6.3 --- A Prospective Measure --- p.79 / Chapter 7 --- Conclusion --- p.87 / Bibliography --- p.89 / Chapter A --- Evolution of Factorizable Coherent State for Linear Damped Harmonic Oscillator with RWA --- p.93 / Chapter B --- "Derivation of G, L and F" --- p.95 / Chapter C --- Comparison of Equations of Motion for Master Equation Coefficients --- p.98
22

Multivariable root loci on the real axis

January 1981 (has links)
Andrew E. Yagle, Bernard C. Levy. / Bibliography: p. 27. / "July 1981" / "NASA Ames Research Center ... Grant NASA/NGL-22-009-124"
23

Probability of solvability of random systems of 2-linear equations over GF(2)

Yeum, Ji-A. January 2008 (has links)
Thesis (Ph. D.)--Ohio State University, 2008. / Title from first page of PDF file. Includes bibliographical references (p. 88-89).
24

Performance analysis of queueing networks via Taylor series expansions

Seo, Dong-Won 08 1900 (has links)
No description available.
25

Identification of Switched Linear Systems

Wang, Jiadong Unknown Date
No description available.
26

Estimation for linear systems driven by point processes with state dependent rates

Ingram, Mary Ann 12 1900 (has links)
No description available.
27

On singular perturbation theory for piecewise-linear systems

Heck, Bonnie S. 08 1900 (has links)
No description available.
28

Geometric Control of Linear Patterned Systems

Hamilton, Sarah Catherine 19 January 2010 (has links)
An interesting type of distributed system is a collection of identical subsystems that interact in a distinct pattern. A notable example is a ring, more commonly referred to as a circulant system. It is well known that control problems for circulant systems can be simplified by exploiting their common connection with the shift operator. Based on an examination of the algebraic properties underlying this connection, we identify a broader class of systems that share common base transformations. We call it the class of linear patterned systems. Members with meaningful physical interpretations include symmetric circulant systems, triangular Toeplitz systems and certain hierarchical systems. A geometric approach is employed to study the basic control properties of patterned systems, including controllability, observability and decomposition. Controller synthesis for several stabilization problems is then considered, and we show that a patterned solution to the problems exists if a general solution exists.
29

Geometric Control of Linear Patterned Systems

Hamilton, Sarah Catherine 19 January 2010 (has links)
An interesting type of distributed system is a collection of identical subsystems that interact in a distinct pattern. A notable example is a ring, more commonly referred to as a circulant system. It is well known that control problems for circulant systems can be simplified by exploiting their common connection with the shift operator. Based on an examination of the algebraic properties underlying this connection, we identify a broader class of systems that share common base transformations. We call it the class of linear patterned systems. Members with meaningful physical interpretations include symmetric circulant systems, triangular Toeplitz systems and certain hierarchical systems. A geometric approach is employed to study the basic control properties of patterned systems, including controllability, observability and decomposition. Controller synthesis for several stabilization problems is then considered, and we show that a patterned solution to the problems exists if a general solution exists.
30

Necessary conditions for the variant optimal design of linear consecutive systems /

O'Reilly, Małgorzata Marzena. January 2001 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, Dept. of Applied Mathematics, 2001. / "October 2001." Bibliography: leaves 99-103.

Page generated in 0.1168 seconds