• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 204
  • 54
  • 28
  • 14
  • 8
  • 7
  • 5
  • 5
  • 4
  • 4
  • 4
  • 2
  • 2
  • 2
  • 1
  • Tagged with
  • 383
  • 383
  • 69
  • 51
  • 43
  • 36
  • 36
  • 32
  • 32
  • 31
  • 27
  • 25
  • 23
  • 23
  • 23
  • 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.
1

Identification of single input single output discrete systems /

Self, Gordon Lynn. January 1971 (has links)
Thesis (Ph.D.)--University of Tulsa, 1971. / Bibliography: leaves 227-238.
2

A study of control system radii for approximations of infinite dimensional systems /

Oates, Kimberly L., January 1991 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 88-90). Also available via the Internet.
3

Hierarchical Identification of Large-Scale System Models

Jankovic, Boris R. January 1997 (has links)
Dissertation submitted in compliance with the requirements for the Doctor's Degree in Technology in the Department of Electrical Engineering (Light Current) at Technikon Natal / In this study we propose a new concept and methodology of hierarchical identification. The need for such a methodology comes from the fact that identification of large-scale systems (LSSs) by one-shot approach may be numerically very complex. The analysis of LSSs is, in general, not approached by the one-shot methodologies normally associated with non-LSSs. The proposed method of hierarchical identification can be therefore viewed as an extension of LSS methodologies to system identification. LSS methodology aims at breaking up the initial, complex problem into a set of smaller size subproblems. / D
4

Study of the connection between an ohmic damping system and a dispersive dissipative system. / 歐姆阻尼系統與頻散耗散系統之連繫的研究 / Study of the connection between an ohmic damping system and a dispersive dissipative system. / Ou mu zu ni xi tong yu pin san hao san xi tong zhi lian xi de yan jiu

January 2006 (has links)
Kong Wai = 歐姆阻尼系統與頻散耗散系統之連繫的研究 / 江偉. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 72-73). / Text in English; abstracts in English and Chinese. / Kong Wai = Ou mu zu ni xi tong yu pin san hao san xi tong zhi lian xi de yan jiu / Jiang Wei. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Review of ohmic systems and dispersive systems --- p.4 / Chapter 2.1 --- Damped ohmic systems --- p.4 / Chapter 2.1.1 --- Equations of motion --- p.4 / Chapter 2.1.2 --- Normal modes --- p.7 / Chapter 2.1.3 --- Bilinear mapping and general solutions --- p.8 / Chapter 2.2 --- Dissipative dispersive system --- p.10 / Chapter 2.2.1 --- Matrix representation --- p.13 / Chapter 2.2.2 --- Bilinear mapping and metric tensor --- p.14 / Chapter 2.2.3 --- Generalization to M relaxation frequencies --- p.16 / Chapter 3 --- Relation between dispersive and ohmic systems --- p.17 / Chapter 4 --- Odd dimension problem --- p.22 / Chapter 4.1 --- The ohmic system --- p.22 / Chapter 4.1.1 --- Fast mode --- p.22 / Chapter 4.1.2 --- e = 0 --- p.24 / Chapter 4.1.3 --- e→ 0 --- p.25 / Chapter 4.2 --- The dispersive system --- p.27 / Chapter 4.3 --- Connections in odd-dimensional case --- p.30 / Chapter 4.3.1 --- "Odd-dimensional cases, e = 0, ₁ت2= ´ؤi∞" --- p.30 / Chapter 4.3.2 --- "Limiting cases, e →0" --- p.31 / Chapter 4.4 --- Eigenvalues --- p.32 / Chapter 4.5 --- Conclusion --- p.34 / Chapter 5 --- Fluctuation-dissipation theorem --- p.35 / Chapter 5.1 --- FDT for a single damped oscillator --- p.35 / Chapter 5.2 --- FDT for two coupled ohmic oscillators --- p.38 / Chapter 5.3 --- Two couple damped oscillators in different baths --- p.40 / Chapter 5.3.1 --- Case I: Symmetric and T1 = T2 --- p.41 / Chapter 5.3.2 --- Case II: Symmetric and η2 = 0 --- p.42 / Chapter 5.3.3 --- Case III: Asymmetric and T1 = T2 --- p.44 / Chapter 5.3.4 --- Case IV: Asymmetric and η2 = 0 --- p.46 / Chapter 5.3.5 --- Discussion --- p.47 / Chapter 6 --- Pseudo-Boltzman distribution --- p.48 / Chapter 6.1 --- Fokker´ؤPlanck equation --- p.48 / Chapter 6.1.1 --- Single damped oscillator --- p.48 / Chapter 6.1.2 --- Two coupled damped oscillators --- p.50 / Chapter 6.2 --- Path integral method --- p.55 / Chapter 6.2.1 --- Single damped oscillator --- p.55 / Chapter 6.2.2 --- N coupled oscillators --- p.56 / Chapter 7 --- Energy stored in a dispersive system --- p.58 / Chapter 7.1 --- Correlations --- p.59 / Chapter 7.2 --- One-one mapping for N = 2 --- p.61 / Chapter 7.3 --- One-one mapping for N = 3 --- p.64 / Chapter 8 --- Conclusion --- p.70 / Bibliography --- p.72 / Chapter A --- Equipartition theorem --- p.74 / Chapter B --- General fluctuation-dissipation theorem --- p.76 / Chapter C --- Case I: Symmetric and T1 = T2 --- p.80 / Chapter D --- Fokker´ؤPlanck equation - Single damped oscillator --- p.82 / Chapter E --- Fokker-Planck equation - Two coupled damped oscillators --- p.86 / Chapter F --- Path integral method - Single damped oscillator --- p.88 / Chapter G --- Path integral method - N coupled oscillators --- p.90 / Chapter H --- Correlation of χ1χ1 --- p.94 / Chapter I --- Conditions for a dissipative dispersive system --- p.96 / Chapter J --- Solution of an ohmic system --- p.98
5

Physics of networks and competing populations: networking effects in agent-based models. / 網絡與競爭系統的物理: 個體為本模型中的網絡效應 / Physics of networks and competing populations: networking effects in agent-based models. / Wang luo yu jing zheng xi tong de wu li: ge ti wei ben mo xing zhong de wang luo xiao ying

January 2006 (has links)
Chan Hoi-Yeung = 網絡與競爭系統的物理 : 個體為本模型中的網絡效應 / 陳凱揚. / Thesis submitted in: September 2005. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 191-197). / Text in English; abstracts in English and Chinese. / Chan Hoi-Yeung = Wang luo yu jing zheng xi tong de wu li : ge ti wei ben mo xing zhong de wang luo xiao ying / Chen Kaiyang. / Abstract --- p.i / Acknowledgments --- p.v / Contents --- p.vii / Chapter 1 --- Overview --- p.1 / Chapter I --- Networks --- p.3 / Chapter 2 --- Networks in nature --- p.4 / Chapter 2.1 --- Introduction --- p.4 / Chapter 2.2 --- Terminology of the networks studies --- p.6 / Chapter 2.2.1 --- Nodes --- p.6 / Chapter 2.2.2 --- Links --- p.6 / Chapter 2.2.3 --- Adjacency matrix --- p.9 / Chapter 2.2.4 --- Connectivity --- p.10 / Chapter 2.2.5 --- Clustering coefficient --- p.11 / Chapter 2.2.6 --- Shortest path --- p.11 / Chapter 2.2.7 --- Connectivity correlation --- p.12 / Chapter 2.3 --- Topology in the real-world networks --- p.13 / Chapter 2.3.1 --- The Internet --- p.13 / Chapter 2.3.2 --- The WWW --- p.15 / Chapter 2.3.3 --- Collaboration networks --- p.15 / Chapter 2.3.4 --- Food webs --- p.16 / Chapter 2.3.5 --- Power grids --- p.17 / Chapter 2.4 --- Discussion --- p.17 / Chapter 3 --- Review on Network Models --- p.19 / Chapter 3.1 --- Introduction --- p.19 / Chapter 3.2 --- Graph Theory --- p.20 / Chapter 3.2.1 --- Classical random graph --- p.20 / Chapter 3.3 --- Evolving networks --- p.23 / Chapter 3.3.1 --- Random growing network --- p.23 / Chapter 3.3.2 --- Fitness growing network --- p.25 / Chapter 3.3.3 --- Barabasi-Albert model --- p.27 / Chapter 3.3.4 --- Fitness model --- p.31 / Chapter 3.4 --- Lattice --- p.33 / Chapter 3.4.1 --- Regular hypercubic lattices (Periodic) --- p.33 / Chapter 3.4.2 --- Regular hypercubic lattices (Free boundary conditions) . --- p.35 / Chapter 3.5 --- Discussion --- p.35 / Chapter 4 --- Network Properties --- p.38 / Chapter 4.1 --- More derivations on existing models --- p.38 / Chapter 4.1.1 --- Classical random graphs --- p.38 / Chapter 4.1.2 --- Barabasi-Albert model --- p.40 / Chapter 4.1.3 --- Fitness Model --- p.42 / Chapter 4.1.4 --- Regular hypercubic lattices (Periodic) --- p.45 / Chapter 4.2 --- New model --- p.48 / Chapter 4.2.1 --- Fitness-BA hybrid model --- p.48 / Chapter 4.3 --- Link removal --- p.55 / Chapter 4.3.1 --- Introduction --- p.55 / Chapter 4.3.2 --- Formalism in connectivity --- p.55 / Chapter 4.3.3 --- Pruned BA Model --- p.56 / Chapter 4.4 --- Link addition --- p.58 / Chapter 4.4.1 --- Introduction --- p.58 / Chapter 4.4.2 --- Regular hypercubic lattices (Periodic) --- p.58 / Chapter 4.5 --- Discussion --- p.60 / Chapter II --- Games --- p.62 / Chapter 5 --- Review on Agent-based models of competing population --- p.63 / Chapter 5.1 --- Introduction --- p.63 / Chapter 5.2 --- The El Farol Bar attendance problem --- p.65 / Chapter 5.2.1 --- Model --- p.65 / Chapter 5.2.2 --- Strategies --- p.66 / Chapter 5.2.3 --- Discussion --- p.66 / Chapter 5.3 --- Minority game --- p.67 / Chapter 5.3.1 --- Model --- p.67 / Chapter 5.3.2 --- Strategies --- p.68 / Chapter 5.3.3 --- Attendance --- p.69 / Chapter 5.3.4 --- History and quasi-Eulerian state --- p.69 / Chapter 5.3.5 --- Success rate and Hamming distance --- p.71 / Chapter 5.3.6 --- Volatility --- p.73 / Chapter 5.3.7 --- Crowd-anticrowd theory --- p.75 / Chapter 5.3.8 --- Discussion --- p.76 / Chapter 6 --- B-A-R model : Dynamics --- p.78 / Chapter 6.1 --- Model --- p.78 / Chapter 6.2 --- Results: Plateaux and periodicity --- p.81 / Chapter 6.3 --- A microscopic view: Agents' decisions and strategy performance --- p.86 / Chapter 6.4 --- A macroscopic view: Bit-string patterns --- p.92 / Chapter 6.4.1 --- The history space --- p.92 / Chapter 6.4.2 --- Bit-string statistics of different states --- p.94 / Chapter 6.5 --- The (max = 1 states --- p.97 / Chapter 6.5.1 --- Values of wm3iX --- p.97 / Chapter 6.5.2 --- "Strategy ranking evolvement: ni, (w)" --- p.101 / Chapter 6.5.3 --- Substates . --- p.105 / Chapter 7 --- B-A-R model : Formalism --- p.108 / Chapter 7.1 --- Resource level at transitions of Cmax = 0 state --- p.108 / Chapter 7.2 --- Resource levels at transitions of Cmax 二 1 states --- p.109 / Chapter 7.2.1 --- Method --- p.109 / Chapter 7.2.2 --- Lmin for upper substate --- p.110 / Chapter 7.2.3 --- Lmin for lower substate --- p.113 / Chapter 7.3 --- Discussion --- p.116 / Chapter 8 --- B-A-R model : Statistics --- p.121 / Chapter 8.1 --- Problem --- p.121 / Chapter 8.2 --- Bit-string statistics --- p.122 / Chapter 8.2.1 --- Allowed transitions --- p.122 / Chapter 8.2.2 --- Grouping the history space --- p.122 / Chapter 8.2.3 --- "Grouping the states, Cmax" --- p.127 / Chapter 8.2.4 --- "Labelling each state, /(C)" --- p.129 / Chapter 8.3 --- Discussion --- p.130 / Chapter III --- Networked games --- p.131 / Chapter 9 --- Networked minority game --- p.132 / Chapter 9.1 --- Model --- p.132 / Chapter 9.2 --- Preliminary results: Agents' success rates --- p.133 / Chapter 9.3 --- Ranking the strategies --- p.135 / Chapter 9.3.1 --- Ranking pattern --- p.136 / Chapter 9.3.2 --- Fraction of strategies in each rank --- p.140 / Chapter 9.4 --- Number of agents using a best strategy belonging to rank r --- p.141 / Chapter 9.4.1 --- Unconnected population --- p.141 / Chapter 9.4.2 --- Networked population . --- p.142 / Chapter 9.5 --- Application: Mean success rate --- p.143 / Chapter 9.6 --- Mean success rate of agents with degree k --- p.147 / Chapter 9.7 --- Application in other networks --- p.149 / Chapter 9.8 --- Discussion --- p.151 / Chapter 10 --- Interacting agents: Networked B-A-R model --- p.154 / Chapter 10.1 --- Model --- p.154 / Chapter 10.2 --- The quasi-Eulerian state (wmax = 1/2 state) --- p.155 / Chapter 10.3 --- The emergent states --- p.159 / Chapter 10.3.1 --- General results --- p.159 / Chapter 10.3.2 --- The Cmax = 0 state --- p.160 / Chapter 10.3.3 --- The Cmax = 1 state --- p.161 / Chapter 10.4 --- Discussion --- p.162 / Chapter IV --- Conclusion --- p.164 / Chapter 11 --- Conclusion --- p.165 / Chapter V --- Appendices --- p.172 / Chapter A --- List of symbols --- p.173 / Chapter A.1 --- Networks --- p.173 / Chapter A.2 --- Games --- p.174 / Chapter A.3 --- Networked games --- p.176 / Chapter B --- Distance distribution in classical random graphs --- p.177 / Chapter B.1 --- Method --- p.177 / Chapter B.2 --- Distance distribution --- p.177 / Chapter B.3 --- Behaviour at small L --- p.178 / Chapter B.4 --- Behaviour at large L --- p.179 / Chapter C --- Co-ordination number in infinite hypercubic lattice --- p.181 / Chapter C.1 --- Method --- p.181 / Chapter C.1.1 --- ID lattice --- p.181 / Chapter C.1.2 --- 2D square lattice --- p.182 / Chapter C.1.3 --- Higher dimension hypercubic lattices --- p.183 / Chapter C.2 --- Coefficients --- p.185 / Chapter D --- Connectivity distribution in fitness-BA hybrid model --- p.187 / Chapter D.1 --- Mean field approach --- p.187 / Chapter D.2 --- Connectivity distribution --- p.188 / Chapter D.3 --- Power-law exponent --- p.190 / Bibliography --- p.191
6

The analysis of dynamically interactive systems /

Simpson, William Randolph January 1978 (has links)
No description available.
7

A general linear systems theory on time scales transforms, stability, and control /

Jackson, Billy, Davis, John M. January 2007 (has links)
Thesis (Ph.D.)--Baylor University, 2007. / Includes bibliographical references (p. 128-130).
8

A theory of legislation from a systems perspective /

Harrison, Peter. January 2006 (has links)
Thesis (Ph.D.) -- University of Canberra, 2006. / Includes bibliography (p. 250 - 301) Also available online.
9

Influences of a laity/clergy dichotomy on the ministry of the urban church

Payne-Wright, Annette, January 2001 (has links)
Thesis (D. Min.)--Gordon-Conwell Theological Seminary, 2001. / Abstract and vita. Includes bibliographical references (leaves 123-128).
10

Systems thinking view on the situation of unemployment in the USA

Schuster, Roland J. January 2003 (has links) (PDF)
Thesis (doctoral)--University of California, San Diego & Vienna University of Technology, 2003. / Title from PDF t.p. (viewed on Aug. 6, 2008). Includes bibliographical references (p. 153-155) and index.

Page generated in 0.1397 seconds