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  • 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.
11

Scattering properties of periodically-driven open quantum systems

Emmanouilidou, Agapi. January 2002 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
12

Scattering properties of periodically-driven open quantum systems

Emmanouilidou, Agapi 20 April 2011 (has links)
Not available / text
13

Quantum mechanical simulation of open electronic systems

Zheng, Xiao, January 2006 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.
14

Systems Psychodynamics and Consulting to Organisations in Australia

Nossal, Brigid Suzanne, brigid@now,com.au January 2007 (has links)
Systems Psychodynamics is unique as an approach to consulting to organisations in the way it integrates three theory streams: psychoanalysis; group relations and open systems theory. Consultants who work in this way focus on the many layers of interactions and exchanges taking place both within organisations and at the interface between an organisation and its external environment. The territory for collaborative exploration with clients extends from interpersonal and group dynamics to service and product- related systems and processes. It is a holistic approach that creates opportunities for transformational learning at every level of the organisation. As a practice, consulting with a systems psychodynamics approach is complex and difficult to master. Arguably, the most challenging dimension of this work for consultants is developing a capacity to think within a psychoanalytic conceptual framework: to discern and hypothesise about unconscious processes in organisations. But what precisely does this mean and what is this experience like for the consultants? This research project was designed to explore and describe the experience of working with a systems psychodynamic approach from the consultants' perspectives within the Australian context. To this end, 20 consultants who self-selected as working with a systems psychodynamic approach were involved in this research. From the data created in this process, what is documented in this thesis is the first detailed description of the experience of 'working in this way' taken from the combined perspectives of these 20 consultants. Further, a systems psychodynamic approach to research is defined and applied in this thesis. In this way, the systems psychodynamics within the temporary 'system' created by the research was part of the territory under investigation. This process led to an important discovery. 18 of 20 consultants strongly asserted the importance of working with colleagues in pairs or teams when adopting a systems psychodynamic approach. However, at the time of interviewing, all 20 consultants were working alone and only 3 had immediate plans to work with others. An exploration of the reasons for this gap between beliefs about best practice and actual practice became the focus for the analysis of the data. What is discovered through this analysis is that the reasons why consultants are predominantly choosing to work alone are likely to be complex and irreducible. An exploration of the issues that working together can surface for consultants who apply a systems psychodynamic approach is presented under four sub-topics: system domain issues; theory-related issues; interpersonal issues and intrapsychic issues. In this detailed analysis, what is revealed is an absence of 'good enough' containment for the anxieties that are likely to be aroused when consultants work together. To this end, four 'containers' are proposed: organisation/brand-as-container; management-as-container; supervision-as-container and theory/praxis-as container. This research has uncovered some important challenges facing the community of practitioners in Australia. It is the contention in this thesis that they need to be addressed if the practice of consulting with a systems psychodynamic approach is to flourish and continue to grow.
15

Non-equilibrium dynamics of many body quantum systems / Dynamique hors équilibre de systèmes quantiques à N-corps

Henriet, Loïc 08 September 2016 (has links)
Cette thèse porte sur l'étude de propriétés dynamiques de modèles quantiques portés hors équilibre. Nous introduisons en particulier des modèles généraux de type spin-boson, qui décrivent par exemple l'interaction lumière-matière ou certains phénomènes de dissipation. Nous contribuons au développement d'une approche stochastique exacte permettant de d'écrire la dynamique hors équilibre du spin dans ces modèles. Dans ce contexte, l'effet de l'environnement bosonique est pris en compte par l'intermédiaire des degrés de liberté stochastiques supplémentaires, dont les corrélations temporelles dépendent des propriétés spectrales de l'environnement bosonique. Nous appliquons cette approche à l'étude de phénomènes à N-corps, comme par exemple la transition de phase dissipative induite par un environnement bosonique de type ohmique. Des phénomènes de synchronisation spontanée, et de transition de phase topologique sont aussi identifiés. Des progrès sont aussi réalisés dans l'étude de la dynamique dans les réseaux de systèmes lumière-matière couplés. Ces développements théoriques sont motivés par les progrès expérimentaux récents, qui permettent d'envisager une étude approfondie de ces phénomènes. Cela inclut notamment les systèmes d'atomes ultra-froids, d'ions piégés, et les plateformes d'électrodynamique en cavité et en circuit. Nous intéressons aussi à la physique des systèmes hybrides comprenant des dispositifs à points quantiques mésoscopiques couplés à un résonateur électromagnétique. L'avènement de ces systèmes permet de mesures de la formation d'états à N-corps de type Kondo grâce au résonateur; et d'envisager des dispositifs thermoélectriques. / This thesis deals with the study of dynamical properties of out-of-equilibrium quantum systems. We introduce in particular a general class of Spin-Boson models, which describe for example light-matter interaction or dissipative phenomena. We contribute to the development of a stochastic approach to describe the spin dynamics in these models. In this context, the effect of the bosonic environment is encapsulated into additional stochastic degrees of freedom whose time-correlations are determined by spectral properties of the bosonic environment. We use this approach to study many-body phenomena such as the dissipative quantum phase transition induced by an ohmic bosonic environment. Synchronization phenomena as well as dissipative topological transitions are identified. We also progress in the study of arrays of interacting light-matter systems. These theoretical developments follow recent experimental achievements, which could ensure a quantitative study of these phenomena. This notably includes ultra-cold atoms, trapped ions and cavity and circuit electrodynamics setups. We also investigate hybrid systems comprising electronic quantum dots coupled to electromagnetic resonators, which enable us to provide a spectroscopic analysis of many-body phenomena linked to the Kondo effect. We also introducethermoelectric applications in these devices.
16

A Synergistic Problem-Solving Approach to Meeting Challenges in Retail Organizations

Yasin, Mahmoud M., Yavas, Ugur 01 February 2003 (has links)
To turn today’s challenges and threats into fruitful opportunities, marketing organizations must move away from their traditional modus operandi of closed system approach to an open system where employees, customers, procedures, processes, vendors, and strategies are viewed interdependently. This article presents a systematic and synergistic practical framework grounded in an open system. A case study is employed to illustrate the application of the framework and to demonstrate how it can benefit organizations in attaining desirable outcomes.
17

Design and implementation of the mobile internet protocol on the linux kernel to support internet mobility

Thothadri, Radha January 1999 (has links)
No description available.
18

Organising Programmes within a Knowledge Ecosystem : A Case Study on Value Creation and Value Capture / Programhantering inom kunskapsekosystem: : En fallstudie inom värdeskapande processer

Flodin, Sara, Litzén, Louise January 2022 (has links)
Addressing issues of high complexity, such as societal or environmental transformations, require collaboration among a multitude of actors. Therefore, inter-organisational collaborations has evolved for approaching such large-scale problems. During the last decade, the orgasational theory of ecosystems has emerged further. Knowledge ecosystems is one evolved area that has limited empirical research. To evaluate how programs can be organised to sustain value to the actors, and provide further empirical research of ecosystems, this thesis explores the value creation and value capture mechanisms of a knowledge ecosystem. The thesis analyses a case study of a neutral collaborative platform, CLOSER, in Sweden. A conceptual framework, based on the open systems perspective, network theory, and the theoretical definition of a knowledge ecosystem, is used to analyse the empirical results. The value creation and value capture mechanisms for knowledge ecosystems in this empirical case study are identified as communication channels, projects and business initiatives. The findings from this study confirm the literature surrounding knowledge ecosystems and their value mechanisms. It is also elaborated that the incentives of individual participants in the ecosystem must be taken into consideration to enhance value creation and value capture, even in knowledge ecosystems. From a system level perspective, there also needs to be proper building mechanisms in place to handle the deliverance of the knowledge outside of the internal network of the ecosystem. This to ensure nothing is lost, or lessened. The notion that business ecosystems grow from knowledge ecosystems is also adressed. However, future research is still needed to provide empirical evidence of the theory. / Samhälls- eller miljötransformationer kräver samarbete mellan en mängd olika aktörer. Organiseringsfromer som bygger på interorganisatoriskt samarbete har därför utvecklats för att tillsammans kunna ta fram lösningar på sådana storskaliga problem. Ett område inom organisationsteori som har vuxit under det senaste decenniet är ekosystem, där kunskapsekosystem är ett koncept som under senare dit har blivit mer prevalent inom teoretisk forskning. Däremot saknas det underlag inom forskningen på uhr kunskapsekosystem fungerar i praktiken. Denna avhandling tillhandahåller ny empirisk forsknning inom området genom en empirisk studie på hur värde kan skapas och tas till vara på i ett kunskapsekosystem. Det görs genom att analysera hur program kan organiseras inom ett kunskapsekosystem för att upprätthålla värde för aktörerna. Avhandlingen analyserar en fallstudie av en neutral samarbetsplattform CLOSER, i Sverige. Ett konceptuellt ramverk, baserat på ett systemperspektiv, nätverksteori och den teoretiska defenitionen av ett kunskapsekosystem, används för att analysera de empiriska resultaten.  Mekanismerna för värdeskapande och värdefångande inom kunskapsekosystem i denna empiriska fallstudie identifieras som kommunikationskanaler, project och affärsincitament. Resultaten bekräftar delvis det som står i befintlig litteratur kring värdeskapande mekanismer inom kunskapsekosystem, men framhäver även att det inte räcker att fokusera på de gemensamma målen i ett storskaligt samarbete bland en mängd olika aktörer. De individuella målen som aktörerna har måste också beaktas, inklusive deras affärsmodeller, för att se till att hela ekosystemet arbetar i samma riktning. Ur ett systemnivåperspektiv måste det också finnas ordentliga uppbyggnadsmekanismer för att förmedla kusnkap utanför systemets interna nätverk för att säkerställa att värdefull kunskap inte går till spillo. Uppfattningen att affärsverksamhetsekosystem växer fram ur kunskapekosystem diskuteras också. Framtida forskning behövs dock för ayy ge empiriska bevis för den teorin.
19

Spectral inversion problem for conservation and open systems. / 守恆及開放系統的能譜反問題 / Spectral inversion problem for conservation and open systems. / Shou heng ji kai fang xi tong de neng pu fan wen ti

January 2001 (has links)
Yip Chi Ming = 守恆及開放系統的能譜反問題 / 葉志明. / Thesis submitted in 2000. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves [244]-247). / Text in English; abstracts in English and Chinese. / Yip Chi Ming = Shou heng ji kai fang xi tong de neng pu fan wen ti / Ye Zhiming. / Abstract --- p.i / Acknowledgements --- p.ii / Contents --- p.iii / List of Figures --- p.viii / List of Tables --- p.xxi / Chapter Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- The Sturm-Liouville Problem --- p.3 / Chapter 1.2 --- Historical review of inverse problems --- p.7 / Chapter 1.3 --- Conservative systems --- p.10 / Chapter 1.4 --- Open systems --- p.10 / Chapter 1.5 --- Organization of the following chapters --- p.11 / Chapter Chapter 2. --- Conservative Spectral Problem --- p.12 / Chapter 2.1 --- The system --- p.12 / Chapter 2.2 --- Properties of conservative systems --- p.13 / Chapter 2.2.1 --- Asymptotic expansion of eigenvalues --- p.14 / Chapter 2.3 --- Forward spectral problem --- p.16 / Chapter 2.3.1 --- FDM and FEM --- p.17 / Chapter 2.3.2 --- Solving transcendental equation --- p.20 / Chapter 2.4 --- Phase shift problem --- p.20 / Chapter 2.4.1 --- Square well potential --- p.22 / Chapter Chapter 3. --- Forward Spectral Problem for Open Systems --- p.25 / Chapter 3.1 --- The system --- p.26 / Chapter 3.2 --- Properties of open systems --- p.28 / Chapter 3.2.1 --- Asymptotic behaviour of QNM eigenvalues --- p.28 / Chapter 3.2.2 --- Doubling of modes --- p.33 / Chapter 3.2.3 --- Generalized norm of QNMs --- p.34 / Chapter 3.2.4 --- Completeness --- p.37 / Chapter 3.2.5 --- Eigenfunction expansion for QNMs - two component formalism --- p.39 / Chapter 3.3 --- Forward spectral problem --- p.45 / Chapter Chapter 4. --- Conservative Inverse Problem --- p.50 / Chapter 4.1 --- Sun-Young-Zou (SYZ) method --- p.51 / Chapter 4.1.1 --- Perturbative inversion --- p.53 / Chapter 4.1.2 --- The regulators (δn) --- p.54 / Chapter 4.1.3 --- Total inversion (TI) --- p.59 / Chapter 4.1.4 --- Numerical results --- p.60 / Chapter 4.2 --- Rundell and Sacks method (RS method) --- p.74 / Chapter 4.2.1 --- Completeness --- p.75 / Chapter 4.2.2 --- The integral equation --- p.78 / Chapter 4.2.3 --- Uniqueness --- p.82 / Chapter 4.2.4 --- RS formalism --- p.84 / Chapter 4.2.5 --- Numerical results and difficulties --- p.89 / Chapter 4.2.6 --- Summary --- p.110 / Chapter 4.3 --- Phase shift problem --- p.112 / Chapter 4.3.1 --- Reduction to spectral problem --- p.113 / Chapter 4.3.2 --- Modified RS algorithm for finite-range phase shift problem --- p.116 / Chapter 4.3.3 --- Discussion --- p.130 / Chapter 4.4 --- Bound states --- p.131 / Chapter Chapter 5. --- Open Inverse Problem --- p.136 / Chapter 5.1 --- SYZ method --- p.136 / Chapter 5.1.1 --- Perturbative Inversion (PI) and Total Inversion (TI) --- p.137 / Chapter 5.1.2 --- Numerical results --- p.138 / Chapter 5.1.3 --- Other choices of (δn) --- p.156 / Chapter 5.2 --- RS method --- p.158 / Chapter 5.2.1 --- The integral equation --- p.159 / Chapter 5.2.2 --- Cauchy data --- p.160 / Chapter 5.2.3 --- Completeness conjecture --- p.162 / Chapter 5.2.4 --- Numerical verification of completeness condition --- p.163 / Chapter 5.2.5 --- Inversion for Cauchy data --- p.166 / Chapter 5.2.6 --- Cauchy data on 0 < x≤ α --- p.167 / Chapter 5.2.7 --- Comparison system --- p.169 / Chapter Chapter 6. --- Conclusions and Further Studies --- p.188 / Chapter 6.1 --- Conclusions of this thesis --- p.188 / Chapter 6.2 --- Further studies --- p.189 / Chapter Appendix A. --- Singular Value Decomposition --- p.199 / Chapter Appendix B. --- Asymptotic Behaviour of Phase Shifts --- p.203 / Chapter B.1 --- Asymptotic behaviour of phase shift data --- p.203 / Chapter B.2 --- Levinson's theorem --- p.204 / Chapter Appendix C. --- Forward Problem for Conservative Systems --- p.207 / Chapter C.1 --- Finite difference method --- p.207 / Chapter C.2 --- Finite element method --- p.209 / Chapter C.2.1 --- Solving transcendental equation --- p.215 / Chapter Appendix D. --- FDM and FEM for Open Systems --- p.220 / Chapter D.1 --- Finite difference method --- p.220 / Chapter D.2 --- Finite element method --- p.222 / Chapter Appendix E. --- Asymptotic Behaviour of NM Eigenvalues --- p.226 / Chapter Appendix F. --- Asymptotic Behaviour of QNM Eigenvalues --- p.232 / Chapter Appendix G. --- QNM Forward Problem 一 Transcendental Equation --- p.239 / Chapter Appendix H. --- Forward Problem - Calculation of Phase Shifts --- p.243 / Bibliography --- p.245
20

inversion problem for open systems and for scattering by a finitely supported potential. / 從開放系統頻譜或散射相移到逆有限支合集勢函數的研究 / CUHK electronic theses & dissertations collection / The inversion problem for open systems and for scattering by a finitely supported potential. / Cong kai fang xi tong pin pu huo san she xiang yi dao ni you xian zhi he ji shi han shu de yan jiu

January 2004 (has links)
Lo Ting Shek = 從開放系統頻譜或散射相移到逆有限支合集勢函數的研究 / 盧庭碩. / "April 2004." / Thesis (Ph.D.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (p. 144-146). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese. / Lo Ting Shek = Cong kai fang xi tong pin pu huo san she xiang yi dao ni you xian zhi he ji shi han shu de yan jiu / Lu Tingshuo.

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