Дисертації з теми "Cluster design"
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Ponish, John S. "Energy conscious decisions for cluster housing." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/101251.
Повний текст джерелаM. Arch.
Chou, Chi-Wu Information Technology & Electrical Engineering Australian Defence Force Academy UNSW. "Evolutionary cluster costing for weapon system early design." Awarded by:University of New South Wales - Australian Defence Force Academy. School of Information Technology and Electrical Engineering, 2004. http://handle.unsw.edu.au/1959.4/38648.
Повний текст джерелаLEITE, RODRIGO PEIXOTO. "AUTOMOBILE PANEL: CLUSTER´S DESIGN ACCORDING TO INFORMATIONAL ERGONOMICS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2006. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9178@1.
Повний текст джерелаA evolução do design de automóveis possui características interessantes, sob o ponto de vista da relação estético-funcional estabelecida em cada época. No início, os projetos de veículos únicos priorizavam a funcionalidade em detrimento do bem-estar do usuário. Com o tempo, esta maneira de se projetar foi sendo modificada, passando por períodos que valorizaram estritamente o desempenho, a aerodinâmica e a forma para um modelo onde a relação humano-máquina é o centro principal de estudo. Com novos e diferentes modelos de veículos, estes passaram a apresentar variações no posicionamento e projeto de comandos e mostradores, principalmente na região do cluster de direção. Desta forma, o presente estudo objetivou demonstrar que esta variação do posicionamento e de projeto gera confusão e erros de julgamento por parte do usuário, podendo ocasionar graves acidentes e incidentes durante a realização da tarefa, principalmente àquele que não está acostumado com o sistema a ser utilizado. Para comprovar esta hipótese, foi elaborado um estudo que, primeiramente, buscou entender o desenvolvimento dos comandos e mostradores automotivos e o uso de normas e recomendações de projeto para traçar um panorama da disposição das informações no interior dos veículos. Para o desenvolvimento da pesquisa, determinou-se o enfoque na categoria popular. O estudo do surgimento desta categoria, do panorama atual e do perfil do consumidor, contribuiu para se tentar observar o modelo mental dos usuários em relação ao posicionamento dos instrumentos. Para isso foram aplicadas diferentes técnicas, tais como um estudo comparativo dos modelos; a aplicação de questionários com usuários motoristas; e a realização de um grupo focal. O levantamento de dados contemplou ainda a realização de testes em um simulador real de interior de veículo. Outrossim, foi possível observar constrangimentos causados pela variação do projeto e pelo posicionamento de um grupo de comandos/mostradores do cluster e sugerir recomendações para projetos futuros.
The evolution of automobiles design has interesting characteristics, under the point of view of the aesthetic-functionary relation established at each time. In the beginning, the projects of unique vehicles prioritized the functionality in detriment of well-being of the user. As time passed by, this way of projecting were being modified, passing by periods that had strict valued the performance, the aerodynamics and the form for a model which the human being-machine relation is the main center of study. With new and different models of vehicles, these had started to present variations in the positioning and project of commands and counters, mainly in the region of cluster. In this way, the present study aimed to demonstrate that this variation of the positioning and project generates confusion and errors of judgment by the user, and can cause serious accidents and incidents during the accomplishment of the task, mainly to that user that is not familiar with the system to be used. To state this hypothesis, a study was elaborated that, first, searched to understand the automotive development of the commands and counters and the use of norms and recommendations of project to trace a panorama of the disposal of the information in the interior of the vehicles. For the development of the research, the approach in the
Silva, Gustavo Girão Barreto da. "Resource-aware clustering design for NoC-based MPSoCs." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/95984.
Повний текст джерелаThe multicore paradigm is a solid trend nowadays, also in the field of embedded systems. The degree of parallelism provided by such architecture has been the foundation of performance advancements in the field as well as for power and energy savings. However, to obtain efficient parallelism of such architecture is not an easy task. Therefore, developers come up with several proposals of programming environments trying to provide as much transparency as possible. On the hardware side, this increasing number of on-chip components creates a management issue to be handled. In the context of this complex scenario this thesis proposes the use of resource management approaches to improve the efficiency, regarding both performance and energy consumption, of MPSoC environments at different levels. Also, these approaches have in common the notion of clustering, which tries to logically aggregate resources according to application demands. First, at the processor/application level, we propose a dynamically adaptable hardware to support distinct parallel programming models at no computational overhead, since the entire process is completely transparent to the programmer. Also, in this environment, where distinct applications can be executed, we propose a resource-aware scheduling mechanism to improve performance named Processor Clustering. We propose four different resource mapping policies that leverage on distinct aspects of the parallel nature of the applications and on architecture constraints. However, some applications have higher memory demands than computational demands. Therefore, a similar approach can be used at the memory level. In this case, we aim at redistributing memory resources according to application demands. We explore memory redistribution at both design time and runtime and propose a distribution mapping mechanism based on the amount of off-chip memory requests. Finally, we propose a resource-aware fault-tolerance mechanism for distributed on-chip memories in NoCs. We introduce a Reliability Clustering model that leverages on the NoC infrastructure. In this case, the routers have knowledge of faulty blocks and redundancy blocks and, based on that, they are able to avoid higher memory access latency.
Bertaccini, Luca. "Design of a Cluster-Coupled Hardware Accelerator for FFT Computation." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/19806/.
Повний текст джерелаButcher, Isabella. "Design and analysis of cluster randomised trials for behavioural interventions." Thesis, Edinburgh Napier University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400594.
Повний текст джерелаBek, Jeremy. "Design, simulation, and testing of an electric propulsion cluster frame." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300970.
Повний текст джерелаGenerellt erbjuder elektrisk framdrivning hög verkningsgrad men relativt låg dragkraft. För att avhjälpa detta kan flera jonmotorer sättas samman i en klusterkonfiguration och drivs parallellt. Detta kräver en noggrann utformning av en ram för att rymma de enskilda framdrivningssystemen. Denna ram måste vara modulär för att kunna användas i olika klusterstorlekar och verifiera termiska och mekaniska krav för att säkerställa den nominella driften av motorerna. Föreliggande rapport syftar till att visa designprocessen för en sådan ram, från preliminär modellering till experimentell studie av en prototyp. Detta dokument innehåller en översikt över den iterativa designprocessen, driven av termiska simuleringar gjorda med COMSOL Multiphysics, som ledde till uppfattningen av en 2 motorer och 4 motorer ram. En klumpelementmodell av jonmotorn skapades också för att modellera dess komplexa termiska beteende. Dessutom var den 2 motorer ram studeras mekaniskt med analytiska beräkningar och simuleringar av enkla laddafall med SolidWorks. Slutligen monterades en prototyp baserad på den 2 motorer rammodellen. Prototypen användes för att göra temperaturmätningar medan den är värd för 2 jonmotorer i en vakuumkammare. Temperaturfördelningen i klustret mättes och jämfördes med simuleringsresultat. Termiska simuleringar av den 2 motorer och 4 motorer ramen visade lovande resultat, medan mekaniska simuleringar av den 2 motorer versionen klarade alla krav. Dessutom överensstämde experimentella resultat till stor del med termiska simuleringar av prototypen. Slutligen var klumpelementmodellen mycket användbar för att kalibrera de andra modellerna med sin höga flexibilitet och snabba beräkningstid.
Johnston, Joshua Benjamin Hamerly Gregory James. "Clustering in high dimension and choosing cluster representatives for SimPoint." Waco, Tex. : Baylor University, 2007. http://hdl.handle.net/2104/5067.
Повний текст джерелаLorenz, Sebastian, Maria Klemm, and Jens Krzywinski. "Hybride Prototypen im Design." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-223677.
Повний текст джерелаSantiago, Calderón José Bayoán. "On Cluster Robust Models." Scholarship @ Claremont, 2019. https://scholarship.claremont.edu/cgu_etd/132.
Повний текст джерелаThomson, Andrew. "Design and analysis issues in cluster randomised trials with binary outcomes." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498595.
Повний текст джерелаGruener, Charles J. "Design and implementation of a computational cluster for high performance design and modeling of integrated circuits /." Online version of thesis, 2009. http://hdl.handle.net/1850/11204.
Повний текст джерелаLopez, Zambrano Juan Enrique <1993>. "THE IMPORTANCE OF CLUSTER AND CLUSTER POLICIES IN THE DESIGN AND IMPLEMENTATION OF SMART SPECIALIZATION STRATEGIES IN THE LATIN-AMERICA REGIONS." Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/16119.
Повний текст джерелаGurellier, Ozlem. "Design Of A Performance Measurement Model For Industrial Clusters In Turkey." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612793/index.pdf.
Повний текст джерелаs world economics
clusters, as a regional based development tool, still attract many researchers and policy makers from all over the world in order to obtain sustainable competitiveness. As a result of fast rising number of cluster development policies and initiatives, the importance of measuring the performance of clusters arises. The purpose of this thesis is to design a performance measurement model, which will be applied to industrial clusters in Turkey. A model framework is developed, based on expected outcomes of clusters which are classified as productivity, innovativeness, new business formations and social capital. Indicators are selected based on extensive literature survey under these four determinants, and a scorecard is developed. After the design phase, the performance of two cluster cases from Turkey is studied. In order to improve clustering approach, it is important to monitor, measure identify the progress of clusters. It is believed that this work will be utile for policy makers to identify whether the interventions, incentives and promotions are beneficial for the desired purposes and whether they are used effectively.
Kantheti, Vinod. "Design of an efficient checkpointing-recovery algorithm for distributed cluster computing environment /." Available to subscribers only, 2005. http://proquest.umi.com/pqdweb?did=1079672401&sid=2&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Повний текст джерелаFlynn, Terry Nicholas. "Design and analysis of randomised controlled trials : economic aspects of cluster randomisation." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393952.
Повний текст джерелаAng, Boon Seong 1966. "Design and implementation of a multi-purpose cluster system network interface unit." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80041.
Повний текст джерелаFerrer, Pérez Joan Lluís. "DESIGN OF EFFICIENT PACKET MARKING-BASED CONGESTION MANAGEMENT TECHNIQUES FOR CLUSTER INTERCONNECTS." Doctoral thesis, Universitat Politècnica de València, 2012. http://hdl.handle.net/10251/18197.
Повний текст джерелаFerrer Pérez, JL. (2012). DESIGN OF EFFICIENT PACKET MARKING-BASED CONGESTION MANAGEMENT TECHNIQUES FOR CLUSTER INTERCONNECTS [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/18197
Palancia
Copeland, Kathryn. "External Design Elements on Yellow Ware Bowls from the Homol'ovi Settlement Cluster." Thesis, The University of Arizona, 2009. http://hdl.handle.net/10150/192306.
Повний текст джерелаShim, Young Hak. "Design of a cluster analysis heuristic for the configuration and capacity management of manufacturing cells." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/5905.
Повний текст джерелаYou, Zhiying. "Power and sample size of cluster randomized trials." Thesis, Birmingham, Ala. : University of Alabama at Birmingham, 2008. https://www.mhsl.uab.edu/dt/2009r/you.pdf.
Повний текст джерелаDong, Ranran. "Stepped Wedge Cluster Randomized Controlled Trials for Three-Level Data: Design and Evaluation." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1514492341281384.
Повний текст джерелаLi, Jeffrey. "Integrated High Frequency Transformer Design Virtual Laboratory." Thesis, Griffith University, 2015. http://hdl.handle.net/10072/380060.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Eng & Built Env
Science, Environment, Engineering and Technology
Full Text
Lorenz, Sebastian, Maria Klemm, and Jens Krzywinski. "Hybride Prototypen im Design." Technische Universität Dresden, 2016. https://tud.qucosa.de/id/qucosa%3A30283.
Повний текст джерелаPeters, Adam J. "Implementing simulation design of experiments and remote execution on a high performance computing cluster." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Sep%5FPeters.pdf.
Повний текст джерелаThesis Advisor(s): Sanchez, Paul. "September 2007." Description based on title screen as viewed on October 23, 2007. Includes bibliographical references (p. 87-89). Also available in print.
Desai, Jitamitra. "Solving Factorable Programs with Applications to Cluster Analysis, Risk Management, and Control Systems Design." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28211.
Повний текст джерелаThis dissertation focuses on employing the Reformulation-Linearization Technique (RLT) to enhance model formulations and to design effective solution techniques for solving several practical instances of continuous nonconvex optimization problems, namely, the hard and fuzzy clustering problems, risk management problems, and problems arising in control systems.
Under the umbrella of the broad RLT framework, the contributions of this dissertation focus on developing models and algorithms along with related theoretical and computational results pertaining to three specific application domains. In the basic construct, through appropriate surrogation schemes and variable substitution strategies, we derive strong polyhedral approximations for the polynomial functional terms in the problem, and then rely on the demonstrated (robust) ability of the RLT for determining global optimal solutions for polynomial programming problems. The convergence of the proposed branch-and-bound algorithm follows from the tailored branching strategy coupled with consistency and exhaustive properties of the enumeration tree. First, we prescribe an RLT-based framework geared towards solving the hard and fuzzy clustering problems. In the second endeavor, we examine two risk management problems, providing novel models and algorithms. Finally, in the third part, we provide a detailed discussion on studying stability margins for control systems using polynomial programming models along with specialized solution techniques.
Ph. D.
Ganesan, Sharan Kumaar. "Design and Implementation of Digital Spiking Neurons for Ultra-low-Power In-cluster processors." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-198115.
Повний текст джерелаKoop, Matthew J. "High-Performance Multi-Transport MPI Design for Ultra-Scale InfiniBand Clusters." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243581928.
Повний текст джерелаBellesia, Filippo. "Design, Implementation and Verification of the End of Line Test for an Automotive Instrument Cluster." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Знайти повний текст джерелаMohamed, Esha [Verfasser], and Ralf [Akademischer Betreuer] Münnich. "Design-based and model-based estimation in adaptive cluster sampling / Esha Mohamed ; Betreuer: Ralf Münnich." Trier : Universität Trier, 2017. http://d-nb.info/1197807535/34.
Повний текст джерелаGabriel, Matthew Frederick. "An Expanded Speedup Model for the Early Phases of High Performance Computing Cluster (HPCC) Design." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/22053.
Повний текст джерелаMaster of Science
李宗豪. "Design and Implementation of Cluster Object Cache System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/55830314348404453728.
Повний текст джерела國立清華大學
資訊工程學系
92
Cache is the bridge among high-speed equipment and low-speed equipment to fetch quickly. One's own purpose lies in storing the materials in having better equipment of time of response, prevent from to low-speed equipment deposit and withdraw relatively, for instance L1/L2 cache , file fetching , proxy cache ,etc. soon. With the flourishing development of the network, such as Gigabit, Myrinet, InfiniBand, NPU ,etc., the transmission speed of the network is day by day quickly, though the speed that and the machinery , such as hard disk ,etc. are equipped makes progress, but and the progress of the high-speed network wants to be more limited than really, and the hard disk deposits and withdraw the bottleneck often causing whole systematic efficiency. Fetch the materials in the storing device of other computers quickly through the high-speed network, more efficient than the ones that read and fetched more directly from the hard disk. So, the thesis in explain main fact how in one made up by PC system of gathering together etc., design and make fetching the administrative system quickly of a wide area in fact. Our purpose fetches and manages intermediary's software quickly in the storing device of a single , unanimous and dispersing type of using lying in the operating system. With this intermediary software, the application program can receives the advantage from the gathering together type systematic storing device and can get more storing device that can be useds , even a gathering together type system made up by different operating systems. This intermediary software combine whole of person who gather together system fetch person who store soon (mean file fetch soon here), as to application program, it was only a large-scale and only read fetching the space quickly that was seen. All application program share the file and fetch quickly through this system, do not need to safeguard fetching quickly by oneself again , but avoid duplicating repeatedly. We have already made this intermediary software in fact in a PC gathering together type system joined by Gigabit high-speed network, and its operating system includes Linux and Microsoft Windows NT. In the experiment, a webpage server efficiency of having a large number of files of our actual measurement, having avoided losing most disk drives to read in because the result, the efficiency of the successful improvement webpage server, with the gathering together type increase with nodal system, efficiency can present growth of 1 to 2.5 times .
Xiao, Shan. "Bayesian design and analysis of cluster randomized trials." Diss., 2017. http://hdl.handle.net/1805/14611.
Повний текст джерелаCluster randomization is frequently used in clinical trials for convenience of inter ventional implementation and for reducing the risk of contamination. The opera tional convenience of cluster randomized trials, however, is gained at the expense of reduced analytical power. Compared to individually randomized studies, cluster randomized trials often have a much-reduced power. In this dissertation, I consider ways of enhancing analytical power with historical trial data. Specifically, I introduce a hierarchical Bayesian model that is designed to incorporate available information from previous trials of the same or similar interventions. Operationally, the amount of information gained from the previous trials is determined by a Kullback-Leibler divergence measure that quantifies the similarity, or lack thereof, between the histor ical and current trial data. More weight is given to the historical data if they more closely resemble the current trial data. Along this line, I examine the Type I error rates and analytical power associated with the proposed method, in comparison with the existing methods without utilizing the ancillary historical information. Similarly, to design a cluster randomized trial, one could estimate the power by simulating trial data and comparing them with the historical data from the published studies. Data analytical and power simulation methods are developed for more general situations of cluster randomized trials, with multiple arms and multiple types of data following the exponential family of distributions. An R package is developed for practical use of the methods in data analysis and trial design.
Chang, Chai-Jui, and 張家睿. "Leap rank SIP hierarchical gatekeeper Cluster integrated design." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/44536521828228785736.
Повний текст джерела南台科技大學
電子工程系
95
This paper proposes SIP Cluster of leap rank with hierarchical Gatekeeper. And the major communicated structure of SIP is utilized by self developed with going across of hierarchical Gatekeeper, proxy server、conveyer server, etc…, so it can enhance the examination of speed rate and detect the status of communication steadily. The integrated cluster of SIP module can maximum the number of people who are communicating by phone simultaneously to approach high-speed connective capability between across area and small-scale of SIP module . E1 Gamal encryption as an application for communication security that Java + XML can be utilized to communicate with the design of character and database in order to transfer letter in brief and leave sound message via individual communicated module. At the same time, to transfer information steadily for confirmation between each other that it can come down the cost and have better quality and security while the process of reorganization of Gatekeeper is being proceeded. Therefore, to expand the IP-phone implicated ambit that can be related to the structure of sender and receiver via getting united with functional difference to achieve the effective management.
Kim, Jin-ha. "Design and analysis of cluster-based web servers." 2005. http://www.etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-1074/index.html.
Повний текст джерела紀森炫. "Analysis and Object-oriented Design for Cluster Tool Simulator." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/56652161833303578751.
Повний текст джерела國立交通大學
機械工程系
90
This paper focuses on cluster tool controller software verification. Following the concept of hardware in the loop, we use the unified modeling language to design the object oriented in-time cluster tool simulator. In addition, we analyzed each of the design factors for the simulator, not only to save the design time, but also allow the simulator to have functions of normal response, hardware failure, and communication failure. This makes the simulator verify the controller software conveniently and correctly.
林家守. "An Application of Cluster-Based Design in 3D IC." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/46103837059707370212.
Повний текст джерела國立彰化師範大學
資訊工程學系
99
With the progress of Integrated Circuit (IC) fabrication, the amount of transistors in a IC is getting more and more. To reduce the metal layer the three-dimensional IC (3D IC) is developed to replace traditional IC (2D IC). In 3D IC, layer-to-layer uses Through-Silicon-Via (TSV) to transmission signal. At first we model the circuit as a hypergraph. Then we use the concept of cluster to produce initial cut. After initial cut, we build a Bucket structure to store node’s gain. To avoid all the nodes move to the same cluster, we set a formula to sure all of the area of the cluster are balance. In refined cut, we choose the node with highest gain from Bucket and move to appointed cluster. After refined cut, the initiative layers and the amount of TSVs will be decided. By sequential search, we choose the lowest amount of TSVs. Last, there are some formulas and variables to estimate the cost of 2D IC and 3D IC. The experimental results show the amount of TSVs that partition to two to five layers. Compare with the cost of 2D IC and 3D IC, the cost of 3D IC is cheaper with fewer nodes. Our algorithm is not complexity and hard. In future we will focus on research the algorithm that can process the circuit with more than ten thousand cells and we can obtain lower cost compare with 2D IC.
Lin, Ting-Wei, and 林庭瑋. "An ALU Cluster Design for Media Streaming Processors Architecture." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/50487856973796875746.
Повний текст джерела國立交通大學
電信工程系所
94
Recent research has proposed using streaming architecture to provide a leap in media applications that are poorly matched to conventional processor architecture. Besides, low power considerations are becoming an important issue for mobile systems, but streaming architecture solutions do not fit in above requirements. Therefore, in this research, a combination of media streaming architecture and low power circuitry design methodology is proposed. An ALU Cluster design for media streaming architecture is presented in this thesis, which is based on Stanford Imagine stream architecture with the consideration of implementation feasibility. The back-end simulation results decide the final micro-architecture of each component, and utilize communication bandwidth hierarchy design to effectively solve the problem of scarce memory bandwidth. The experimental results show that the power and energy consumption of selected benchmark for multimedia and baseband communication systems become scalable by dynamic selecting the number of utilized ALU Clusters. Thus, the instant performance and energy consumption of an entire work can be optimized for mobile systems. The proposed design has provided a breakthrough for similar architectures.
Tseng, Chin-Chieh, and 曾勁潔. "Design and Implementation of Adaptive MP4 Cluster Streaming System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/30896157036371728433.
Повний текст джерела國立成功大學
資訊工程學系碩博士班
92
With rapid growth of the internet, we can reach rich multimedia data by the internet easily. For example, VOD (Video on Demand)、E-Learning、Video Conference …, etc. Specially, the streaming technology makes the real time media playback possible. However, the internet is a best-effort network. In other words, the QoS cannot be always satisfied under the limited bandwidth in the internet. In the video streaming system, the multimedia data are transported by the RTP protocol which is based on UDP. The UDP is a non-connection protocol, the data-transporting may subject to the congestion under such environment. Therefore, we develop a mechanism in the application-layer QoS for the congestion. This mechanism can handle the congestion problem on the server, whether the congestion occurs on the client-side due to the insufficient bandwidth, or on the server-side due to the overload of user connections. The mechanism can adapt the transmission rate to reduce packet loss, and also can avoid the frame-dropping or pause due to out-of-date frame arisen from delay. In the thesis, we also propose a MOD-based selected-frame-discard algorithm to meet the application-layer QoS. The algorithm can avoid the continuous frame loss so that the playback can be smoother. Experimental results also confirm the feasibility of the proposed algorithm.
Hsieh, Tsai-Hao, and 謝才晧. "Design of Bus Guide APP with the Cluster Analysis." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/67503213722380766784.
Повний текст джерела輔仁大學
資訊工程學系碩士班
103
For nowadays society, travel is a major point in the life of leisure. Travel have to go to the famous popular scenic spots or restaurants. Scenic spots are mostly belonging to unknown places. The moment when we cannot understand famous popular scenic spots is a trouble. Talking about travel, we also will think of traffic and time planning, so we have to understand the popular scenic spots and traffic is an important issue on a tour. In this thesis, we design a bus guide system with the cluster analysis function. In the client side, we use the Android Studio to develop the user interface. In the server side, we adopt Javascript to catch the user query to provide the bus route information. In addition, we also keep truck of the user bus route based on the Hadoop Distributed File System (HDFS) to store data as much as possible. Finally, we apply R language to perform the cluster analysis using the data of HDFS. The analysis results can provide the valuable information about which places visited by many people.
Lin, Shih-kai, and 林士凱. "Optical Design and Verification of Cluster LED Roadway Lighting." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/37065351470042167590.
Повний текст джерела國立中央大學
光電科學研究所
99
In this thesis, we construct a precise cluster LED optical model verified by normalized cross correlation in mid-field. Based on this optical model, we design a high efficiency lens which performs wide divergent-angle distribution. The lens can be applied in luminaires for roadway lighting and its emitted target area fits in with medium distribution of IESNA roadway lighting standard. Finally, we mock up the lens for verification, and then we analyze the reliability of the luminaire.
Hsu, Chen-Chun, and 許臣君. "Fingerprint Recognition System Design via Fuzzy Cluster Orientation Method." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/74631061883411173370.
Повний текст джерела淡江大學
電機工程學系碩士班
95
Now, people’s life are getting more and more complicated in this diversified society. In many situations, keeping secret safely and identifying recognition are quite important. In early days, people kept secret by using secret code and keys and recognized identifications by seals and signatures. But these ways are inconvenient and easily lost, forgotten and stolen. Because the characters of human bodies can not be copied, scientists have explored the possibility of biological characteristics as a personal identification tool. In the field of Biometric recognitions, fingerprints because of their own uniqueness and invariance which have very high reliability. And it has widely used in protection systems because of the advantage of the lower development cost. Most identification methods depend on the locations and numbers of ridge endings and bifurcations. If we can get the fingerprint flow field exactly, it will be easy to find out the minutiae and singular points. As the result, there are many scholars propose many ways to calculate flow. The ways mostly used are Slite-Sum methods proposed by Stock and Swonger. The fingerprint flow is got by using gradient. Most of the fingerprint verification systems would including normalization, noise filter, calculate fingerprint flow direction, Gabor filter, detect the positions of the singular points and minutiae, as a basis for the later verification. But, if we have a huge database of fingerprint, the whole efficiency of compare is the most frequently denounced, therefore, here is a new fingerprint flow algorithm bring up in this thesis to compute the fingerprint flow field, for the purpose of selecting fingerprint core more accurate and correcting the offset and rotation of the fingerprint, in the end, use the membership grade by calculate flow field to set up file or use the compute of Euclidean distance to build up the compare of the fingerprint database, that will promote the accuracy by a wide margin and accomplish the efficiency and the accuracy in the hardware of the fingerprint identification in the future.
Liao, Yu-tien, and 廖榆恬. "The Design of Fault Tolerance of Cluster Computing Platform." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/62638831726857133954.
Повний текст джерела國立中山大學
資訊工程學系研究所
100
If nodes got failed in a distributed application service, it will not only pay more cost to handle with these results missing, but also make scheduler cause additional loadings. For whole results don’t recalculated cause by fault occurs, it will be recalculated data of fault nodes in backup machines. Therefore, this paper uses three methods: N + N nodes, N + 1 nodes, and N + 1 nodes with probability to experiment and analyze their pros and cons, the third way gives jobs weight before assigning them, and converts weight into probability and nice value(defined by SLURM[1]) to influence scheduler’s decision of jobs’ order. When fault occurs, calculating in normal nodes’ results will back to control node, and then the fault node’s jobs are going to be reassigned or not be reassigned to backup machine for getting complete results. Finally, we will analyze these three ways good and bad.
Lin, Yi-Peng, and 林義鵬. "Design and Implementation of the Vehicle Cluster Testing System." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/6erz56.
Повний текст джерела國立虎尾科技大學
車輛工程系碩士班
101
Recent years, vehicle cluster integration with CAN-bus communication. Mass production case of feeding and assembling that need manpower testing to ensure product quality. Therefore, develop a simple vehicle cluster testing system to reduce error of manual testing and waste of manpower. This article describes design of vehicle cluster testing system that using windows interface software of visual C++ MFC. Development vehicle cluster visual Image detection technology that using image processing software by OpenCV, to identification of pointer angle and light display. In addition, create a database of test data to generate frequency, voltage, resistance, I/O signal. To provide test different vehicle cluster. This system can save, print test data report. The system has universal detection with different testing needs, self learning and teaching about parameter setting. The test results show using this system to assist in automatic detection can improve detection efficiency, reduce error of manual testing, and improve the detection quality .This system worth companies to use.
Barker, Daniel. "Design and analysis of stepped wedge cluster randomised trials." Thesis, 2018. http://hdl.handle.net/1959.13/1355376.
Повний текст джерелаThis thesis explores aspects of the design and analysis of stepped wedge cluster randomised trials from a statistical viewpoint. It contains a review of current research practices when the design is used in the field and also explores the existing methodological research into the design. It was found that stepped wedge trials often have few clusters (45% < 10 clusters) and a binary outcome (62%). Following this there are three simulation studies presented that aim to explore the use of binary outcome measures in stepped wedge trials with few clusters. The first simulation study examines the different ways in which data from a stepped wedge cluster randomised trial with repeated cross-sections might be analysed. This study also explores the minimum number of clusters needed for consistent and reliable inference under ideal circumstances: such as equal cluster sizes, a time trend that is truly linear, and an intervention effect that is identical for every cluster. For a stepped wedge cluster randomised with 3 steps we found that randomising less than 6 clusters led to estimation problems for all methods of analysis. The second simulation study compares the existing power and sample size determination method for stepped wedge cluster randomised trials to the statistical power of simulated data using the same assumptions. The aim of this study was to see how well the use of Normal approximations in the case of a binary outcome worked for formula based approaches when few clusters were available for analysis. As these approximations became less appropriate, formula based approaches consistently overestimated stepped wedge trial power. The final simulation study is about stepped wedge cluster randomised trials in which cohorts of participants are repeatedly measured. Both closed cohorts, where the same participants are followed throughout the trial, and open cohorts, where participants may enter into the trial at any point, are considered. The effect on study power of different values for the level two and level three variation for both designs is explored. Given the same number of participants per cluster per time, there was generally little difference between the open cohort and closed cohort design for the correlation values we used.
Liu, Chin-Yuan, and 劉金原. "Design of a Secured Hard Disk Storage System by the Cluster Mapping Method (II)— Reset of Cluster Mapping." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/85901573230952055901.
Повний текст джерелаTzay-Farn, Shih. "Location-Aware Cluster-Based Routing Protocol Design for Wireless Networks." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2107200615001600.
Повний текст джерелаTsao, Hung-Tai, and 曹洪泰. "Communication Interface Design for Cluster Tools with Generic Equipment Model." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/6tmtw6.
Повний текст джерела國立交通大學
工學院碩士在職專班精密與自動化工程學程
92
In this thesis, communication interface software confirming to SEMI standard E30 - Generic Equipment Model (GEM) is developed. The developed interface is responsible for the communication between Host computer and Cluster Tool Controller (CTC). The main goal of this software is to let Host and CTC communicate with each other under the same communication interface structure so that Host can collect processing data from CTC very easily and furthermore, Host can manage these Cluster Tools based on these collected data. In the development of this software, the concepts Object Oriented Analysis and Design (OOAD) and Design Patterns are involved to maintain flexible and reusable software architecture. Since the UML is adopted for OOAD and Java language is used for programming, the developed software can be applied to other different types of equipment controllers with few modifications. Finally, the developed software is linked to Host and CTC to test its capacity and performance, and the results are presented as well.
Shih, Tzay-Farn, and 施再繁. "Location-Aware Cluster-Based Routing Protocol Design for Wireless Networks." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/21609421738201478201.
Повний текст джерела國立臺灣大學
電機工程學研究所
94
Abstract Wireless networking offers freedom moving around the effective transmission area and the flexibility and easy to use function for Internet application. The advancement in wireless communication and portable computing devices has made mobile computing possible. A mobile ad hoc network (MANET) is an infrastructureless network with no fixed routers, hosts, or wireless base stations. Nodes of these networks function as routers, which discover and maintain routes to other nodes in the network. Routing protocols used in conventional wired networks are not suited to the mobile environment due to the considerable overhead produced by periodic route update messages and their slow convergence to topological changes. In ad hoc wireless networks, energy is a nonrenewable resource that a mobile node has a finite, monotonically decreasing energy store. These networks are power constrained because nodes operate with restricted battery power. Energy consumption at the network interface is an issue for all mobile computing devices. To minimize energy consumption in portable communication devices has been one of the major design goals for wireless networks. Minimum energy network design can allow longer battery life and mitigate interference. A network protocol that minimizes energy consumption is a key to low-power wireless networks. The limitation of bandwidth and energy are two challenges facing the design of wireless networks. Clustering enables bandwidth reuse and can, thus, increase system capacity. Cluster-based routing protocol enables better resource allocation and helps to improve power control and system lifetime. It will also enable the cluster heads to pre-process, aggregate and compress their data stream that further reducing energy dissipation. Recently, location-based routing protocol has obtained more attractive. Instead of searching route in the entire network blindly, location-based routing protocol using the location information of mobile nodes to confine the route searching space into a smaller estimated range. The smaller route searching space to be search, the less routing overhead and broadcast storm problem will be induce. In this dissertation, we propose some location-aided cluster-based routing protocols, which use geographical location information provided by positioning device in route discovery and route maintenance procedure. In our protocols, the whole network is partitioned into clusters. The path is constructed in a cluster-by-cluster basis. The performances of our algorithms were studied through extensive simulation. The simulation results reveal that our protocols have outstanding performance. Keywords: Routing Protocol, Location-Aware, Ad hoc Networks, Sensor Networks
Tseng, Jin-Shan, and 曾金山. "Design and Implementation of a Load Balancing Web Server Cluster." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/54938784273578204045.
Повний текст джерела國立中山大學
資訊工程學系研究所
93
The Internet has become popular and many traditional services have changed into web service stage by stage. The web server with single architecture is no longer satisfying a large number of user requests and the cluster-based web server architecture becomes another suitable solution. Dispatch mechanism play an important role in web server cluster and there are many load balancing policies have been proposed recently. But, these research has only simulation, performance of these policies operate in a real system is unknown. In these simulation all has an assumption that web traffic is heavy-tailed distribution. However, in our experience, the assumption has changed. Web content has become large because network bandwidth increasing and more and more large files like video、audio and tail software, etc. coming in. We defined this web traffic is a data-intensive workload. In this study, we use a real and data-intensive web site to measure and compare these scheduling policies.