Network virtualization has become an important aspect of the Telecom industry. The need forefficient, scalable and reliable virtualized network functions is paramount to modern networking.Open vSwitch is such virtual switch that attempts to extend the usage of virtual switches to industrygrade performance levels on heterogeneous platforms.The aim of the thesis is to give an insight into the working of Open vSwitch. To evaluate theperformance of Open vSwitch in various virtualization scenarios such as KVM (second companionthesis)[1] and Docker. To investigate different scheduling techniques offered by the Open vSwitchsoftware and supported by the Linux kernel such as FIFO, SFQ, CODEL, FQCODEL, HTB andHFSC. To differentiate the performance of Open vSwitch in these scenarios and scheduling capacitiesand determine the best scenario for optimum performance.The methodology of the thesis involved a physical model of the system used for real-timeexperimentation as well as quantitative analysis. Quantitative analysis of obtained results paved theway for unbiased conclusions. Experimental analysis was required to measure metrics such asthroughput, latency and jitter in order to grade the performance of Open vSwitch in the particularvirtualization scenario.The results of the thesis must be considered in context with a second companion thesis[1]. Both thethesis aim at measuring the performance of Open v-Switch but the virtualization scenarios (Dockerand KVM) which are chosen are different, However, this thesis outline the performance of Open vSwitch and linux bridge in docker scenario. Various scheduling techniques were measured fornetwork performance metrics across both Docker and KVM (second companion thesis) and it wasobserved that Docker performed better in terms of throughput, latency and jitter. In Docker scenarioamongst the scheduling algorithms measured, it has almost same throughput in all schedulingalgorithms and latency shows slight variation and FIFO has least latency, as it is a simplest algorithmand consists of default qdisk. Finally jitter also shows variation on all scheduling algorithms.The conclusion of the thesis is that the virtualization layer on which Open vSwitch operates is one ofthe main factors in determining the switching performance. The KVM scenario and Docker scenarioeach have different virtualization techniques that incur different overheads that in turn lead to differentmeasurements. This difference occurs in different packet scheduling techniques. Docker performsbetter than KVM for both bridges. In the Docker scenario Linux bridge performs better than that ofOpen vSwitch, throughput is almost constant and FIFO has a least latency amongst all schedulingalgorithms and jitter shows more variation in all scheduling algorithms.

Network virtualization has become an important aspect of the Telecom industry. The need for efficient, scalable and reliable virtualized network functions is paramount to modern networking. Open vSwitch is a virtual switch that attempts to extend the usage of virtual switches to industry grade performance levels on heterogeneous platforms.The aim of the thesis is to give an insight into the working of Open vSwitch. To evaluate the performance of Open vSwitch in various virtualization scenarios such as KVM and Docker (from second companion thesis)[1]. To investigate different scheduling techniques offered by the Open vSwitch software and supported by the Linux kernel such as FIFO, SFQ, CODEL, FQCODEL, HTB and HFSC. To differentiate the performance of Open vSwitch in these scenarios and scheduling capacities and determine the best scenario for optimum performance.The methodology of the thesis involved a physical model of the system used for real-time experimentation as well as quantitative analysis. Quantitative analysis of obtained results paved the way for unbiased conclusions. Experimental analysis was required to measure metrics such as throughput, latency and jitter in order to grade the performance of Open vSwitch in the particular virtualization scenario.The result of this thesis must be considered in context with a second companion thesis[1]. Both the theses aim at measuring and modeling performance of Open vSwitch in NFV. However, the results of this thesis outline the performance of Open vSwitch and Linux bridge in KVM virtualization scenario. Various scheduling techniques were measured for network performance metrics and it was observed that Docker performed better in terms of throughput, latency and jitter. In the KVM scenario, from the throughput test it was observed that all algorithms perform similarly in terms of throughput, for both Open vSwitch and Linux bridges. In the round trip latency tests, it was seen that FIFO has the least round trip latency, CODEL and FQCODEL had the highest latencies. HTB and HFSC perform similarly in the latency test. In the jitter tests, it was seen that HTB and HFSC had highest average jitter measurements in UDP Stream test. CODEL and FQCODEL had the least jitter results for both Open vSwitch and Linux bridges.The conclusion of the thesis is that the virtualization layer on which Open vSwitch operates is one of the main factors in determining the switching performance. Docker performs better than KVM for both bridges. In the KVM scenario, irrespective of the scheduling algorithm considered, Open vSwitch performed better than Linux bridge. HTB had highest throughput and FIFO had least round trip latency. CODEL and FQCODEL are efficient scheduling algorithms with low jitter measurements.

Recently, computational methods and software have been receiving more attention in the econometrics literature, emphasizing that they are integral components of modern econometric research. This has also promoted the development of many new econometrics software packages written in R and made available on the Comprehensive R Archive Network. This special volume on "Econometrics in R" features a selection of these recent activities that includes packages for econometric analysis of cross-section, time series and panel data. This introduction to the special volume highlights the contents of the contributions and embeds them into a brief overview of other past, present, and future projects for econometrics in R.

Detta är ett projekt om en förskola i Gamla Hagalund i Solna norr om Stockholm. Området är det äldsta i Solna, präglat av historia och personlighet. Detta är ett förslag till en förskola, som med sina naturliga material smältar in i omgivningen bestående av gamla trävillor. Skolan tar utgångspunkt i Open-Air skolans koncept om att en nära kontakt med naturen främjar elevens hälsa. / This is a project about a preschool in Gamla Hagalund in Solna north of Stockholm. The area is the oldest in Solna, characterized by history and personality. This is a proposal for a preschool that with its natural materials melts into the surroundings consisting of old wooden villas. The school is based on the concept of the Open-Air School believing that a close contact with nature promotes the health of the student.

Research within the last fifteen years on global advocacy networks has often focused on their accomplishments through the linking of similar groups. The majority of this research while being useful to examine transnational political dynamics has two deficiencies. The first is that there is little or no consideration of the network infrastructure (from code to cables) that allows the aforementioned linkage to occur. It is therefore important to investigate the politics of infrastructure, architecture and design and the power and control thereof. Secondly, prior to Web 2.0. technologies, advocacy networks were nodes of information distribution, rather than nodes to which information was directed, and then subsequently collected, compiled and used for political purposes. It is quite reasonable to argue that Web 2.0. technologies (again due to considerations of code, digital architecture and design) have altered the manner in advocacy networks interact with their supporters, other organizations and formal political institutions. This change is located within the advocacy network’s technoorganizational structure. Subsequently, as the digital architecture for the internet is an inter-operable free/libre open source software (FLOSS) common to information exchange, it stands to reason that as an infrastructure this technology is directly a political landscape over which and in which friction and contestation can and does occur. In regard to the methods of interaction, FLOSS technologies have greatly expanded the pool of potential social activists and reduced the costs of engagement, activism and highlighting issues. With these factors in mind it can be argued that FLOSS has created opportunities for civil society to emerge and engage with society at large in ways that are both new (in a digital medium) and similar (tackling issues of social justice as constructed by the social activists). When considered at a systematic level this process has several implications. These implications include the impact of 4 networking on identity, social relations, power relations and so on, which in turn acknowledges that modern computer networking can act as a mechanism that radically restructures various political relations. This itself acknowledges various contests over modern computer networking (one position which is expressed by various FLOSS proponents), and the physical infrastructure and the power and control thereof which allows such networking to even exist in the first instance. Within this context, which could be described as an information ecosystem, there is a recognition that advocacy networks have emerged as new sources of power ready to exert influence through networking that occurs in a) a non formal manner and b) ‘beneath the radar’ as it were.

The purpose of this experiment has been to complete a challenging thesis production in the style and technique of Open Theatre, utilizing imaginative production effects. The purpose was also to provide a valuable experience for those actors and technicians involved, meeting the standards and requirements of educational theatre. The experiment evolved from adapting, designing, directing, and producing a twelve-scene cutting from Megan Terry's Viet Rock and twelve episodes from Jean-Claude van Itallie's The Serpent.

by Ng Sik Tim. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaf 229). / by Ng Sik Tim. / Chapter 1 --- Introduction --- p.6 / Chapter 1.1 --- Resonances in open systems --- p.6 / Chapter 1.2 --- Descriptions of open optical systems --- p.11 / Chapter 1.3 --- The wave equations and E.M. fields --- p.17 / Chapter 2 --- The stabilization method --- p.20 / Chapter 2.1 --- Introduction --- p.20 / Chapter 2.2 --- Formalism --- p.23 / Chapter 2.2.1 --- The derivation of scattering phase shift --- p.23 / Chapter 2.2.2 --- The cumulative density of states --- p.25 / Chapter 2.3 --- Worked examples --- p.32 / Chapter 2.3.1 --- The importance of large b --- p.32 / Chapter 2.3.2 --- The comparison of different approaches --- p.35 / Chapter 2.3.3 --- Summary --- p.52 / Chapter 2.4 --- Other examples --- p.52 / Chapter 2.4.1 --- Discussions --- p.52 / Chapter 3 --- Completeness and orthogonality of QNM's --- p.64 / Chapter 3.1 --- Introduction --- p.64 / Chapter 3.2 --- QNM's of the scalar analog of electromagnetism --- p.65 / Chapter 3.3 --- The representation of Green's function --- p.66 / Chapter 3.4 --- The completeness of QNM's --- p.72 / Chapter 3.5 --- The orthogonality of QNM's --- p.73 / Chapter 3.6 --- Discussions --- p.75 / Chapter 4 --- Variational method for resonant states --- p.78 / Chapter 4.1 --- Introduction --- p.78 / Chapter 4.2 --- Formalism --- p.79 / Chapter 4.2.1 --- Complex variational method --- p.79 / Chapter 4.2.2 --- Non-linear variation --- p.82 / Chapter 4.2.3 --- Linear variation --- p.84 / Chapter 4.2.4 --- The orthogonality of approximate wave function --- p.85 / Chapter 4.3 --- Numerical examples --- p.86 / Chapter 4.3.1 --- A sketch of calculations --- p.86 / Chapter 5 --- The diagonalization method --- p.98 / Chapter 5.1 --- Introduction --- p.98 / Chapter 5.2 --- Completeness and orthogonality --- p.100 / Chapter 5.3 --- Formalism --- p.101 / Chapter 5.4 --- Numerical examples --- p.107 / Chapter 5.4.1 --- Descriptions of examples and results --- p.108 / Chapter 5.4.2 --- Summary of results --- p.131 / Chapter 5.5 --- Discussions --- p.134 / Chapter 5.5.1 --- The case with a > c --- p.134 / Chapter 5.5.2 --- A comparison with Fourier's series --- p.138 / Chapter 6 --- The Green's function method --- p.147 / Chapter 6.1 --- Formalism --- p.147 / Chapter 6.2 --- Numerical results --- p.154 / Chapter 6.3 --- Discussions --- p.173 / Chapter 7 --- The uniqueness theorem of QNM's --- p.179 / Chapter 7.1 --- A brief review --- p.179 / Chapter 7.2 --- Physical meanings of the conditions --- p.184 / Chapter 7.3 --- The uniqueness theorem of QNM's --- p.188 / Chapter 7.4 --- The generalization of diagonalization --- p.190 / Chapter 7.5 --- Derivation of Green's function method --- p.192 / Chapter 7.6 --- Numerical examples --- p.193 / Chapter 8 --- Conclusion --- p.204 / Chapter A --- The scalar wave equations --- p.207 / Chapter B --- The electromagnetic fields --- p.214 / Chapter C --- Second order expansion in B --- p.217 / Chapter D --- The derivation of D(w) --- p.220 / Chapter E --- The stability of eigenvectors --- p.223

Thesis. 1978. M.Arch--Massachusetts Institute of Technology. Dept. of Architecture. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH. / Bibliography: leaves 109-110. / M.Arch

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by Tam Chi Yung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1996. / Includes bibliographical references (leaves 66-67). / by Tam Chi Yung. / Contents --- p.i / List of Figures --- p.iii / Acknowledgement --- p.iv / Abstract --- p.v / Chapter Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Open systems and quasinormal modes --- p.1 / Chapter 1.2 --- Gravitational waves --- p.3 / Chapter Chapter 2. --- Green's Function Formalism --- p.6 / Chapter 2.1 --- Introduction --- p.6 / Chapter 2.2 --- Constructing the Green's function --- p.7 / Chapter 2.3 --- The norm --- p.9 / Chapter 2.4 --- Completeness --- p.11 / Chapter Chapter 3. --- Potentials With No Tail --- p.13 / Chapter 3.1 --- Introduction --- p.13 / Chapter 3.2 --- Completeness --- p.14 / Chapter 3.2.1 --- Proof --- p.14 / Chapter 3.2.2 --- Examples --- p.16 / Chapter 3.3 --- The two-component approach --- p.20 / Chapter 3.3.1 --- Formalism --- p.21 / Chapter 3.3.2 --- Comparison of different expansion schemes --- p.23 / Chapter 3.3.3 --- Linear Space --- p.29 / Chapter 3.4 --- Perturbation theory --- p.31 / Chapter 3.4.1 --- Formalism --- p.31 / Chapter 3.4.2 --- Examples --- p.33 / Chapter 3.5 --- Conclusion --- p.35 / Chapter Chapter 4. --- Potentials With Exponential Tails --- p.36 / Chapter 4.1 --- Introduction --- p.36 / Chapter 4.2 --- Single exponential tail --- p.37 / Chapter 4.3 --- Asymptotics of QNM's --- p.40 / Chapter 4.4 --- The Born series --- p.43 / Chapter 4.5 --- Poschl-Teller potential --- p.44 / Chapter 4.5.1 --- Analytic solutions --- p.44 / Chapter 4.5.2 --- The norm --- p.46 / Chapter 4.6 --- The problem of cut-off --- p.48 / Chapter 4.7 --- An effective numerical scheme --- p.49 / Chapter 4.8 --- Conclusion --- p.53 / Chapter Chapter 5. --- Logarithmic Perturbation --- p.54 / Chapter 5.1 --- Introduction --- p.54 / Chapter 5.2 --- Formalism --- p.54 / Chapter 5.3 --- Examples --- p.57 / Chapter 5.4 --- Conclusion --- p.59 / Chapter Chapter 6. --- Conclusion --- p.60 / Appendix A. Asymptotic behaviour of the Green's function --- p.61 / Appendix B. Derivation of the equation (4.16) --- p.63 / Appendix C. Different definitions of the norm --- p.64 / Bibliography --- p.66