Дисертації з теми "Electronic and Computer System Engineering"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "Electronic and Computer System Engineering".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
McKnight, Walter Lee. "A meta system for generating software engineering environments /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487260531958418.
Повний текст джерелаAhmed, Nuredin Ali Salem. "System level modelling and design of hypergraph based wireless system area networks for multi-computer systems." Thesis, University of Glasgow, 2011. http://theses.gla.ac.uk/2559/.
Повний текст джерелаFröberg, Joakim. "Engineering Automotive Electronic Systems: Decision Support for Successful Integration." Doctoral thesis, Mälardalen University, Department of Computer Science and Electronics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-459.
Повний текст джерелаThe electronic system of a modern vehicle is essential to achieve a successful automotive product. Vehicle development is performed by integrating components that include embedded electronics from several suppliers.
This thesis present results on the subject of integration of automotive electronic systems. Our studies aim at providing knowledge on how to integrate automotive electronic systems successfully in a setting where vehicles are developed based on existing platforms. We focus on early phases of automotive electronic system development and in particular on the decisions taken in integration of electronic sub-systems. The contribution is the presented support for making decisions to successfully integrate electronic systems for modern vehicles. The contribution includes an overview of driving factors of automotive electronics system design, a validated set of success practices for the integration of electronic components, and the proposal and demonstration of a decision model. The influential factors and the validated set of practices stems from case studies of products and projects while the proposed decision model is a result of combining two general models for architecture analysis and decision making, ATAM and AHP.
We demonstrate that choices in strategy and design preceding integration are central to achieve a successful integration. Our studies show that problems arise from omitted strategy decisions and we provide a checklist for decision making in the areas; functionality, platform, integration design, and assigning responsibilities. We provide a recommendation that we validate in a multiple cases study where fulfillment of recommendations is demonstrated to affect project success in integration projects.
The potential gain for OEMs using our results lies in achieving more solid foundations for design decisions. Designers and managers could potentially find central decisions on integration strategy early that, if omitted, could cause delays. Thus, applying the result could avoid pitfalls and enable successful integration projects.
Liburd, Soyini (Soyini Denise) 1980. "An N-version electronic voting system." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28441.
Повний текст джерелаIncludes bibliographical references (p. 103-109).
The ballot battles of the 2000 US Presidential Election clearly indicate that existing voting technologies and processes are not sufficient to guarantee that every eligible voter is granted their right to vote and implicitly to have that vote counted, as per the fifteenth, nineteenth, twenty fourth and twenty sixth amendments to the US constitution [1-3]. Developing a voting system that is secure, correct, reliable and trustworthy is a significant challenge to current technology [3, 4]. The Secure Architecture for Voting Electronically (SAVE) demonstrates that N-version programming increases the reliability and security of its systems, and can be used to increase the trustworthiness of systems. Further, SAVE demonstrates how a viable practical approach to voting can be created using N-version programming. SAVE represents a significant contribution to voting technology research because of its design, and also because it demonstrates the benefits of N-version programming and introduces these benefits to the field of voting technology.
by Soyini D. Liburd.
M.Eng.
Li, Dong. "Physics- and engineering knowledge-based geometry repair system for robust parametric CAD geometries." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/348924/.
Повний текст джерелаHeath, David M. "The Use of Electronic Meeting System Technology to Aid in Software Requirements Engineering." NSUWorks, 1998. http://nsuworks.nova.edu/gscis_etd/577.
Повний текст джерелаGeerdts, C. D. "SOFTWIRE : an interactive, computer-based system for enhancing learning in electrical engineering using simulation." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/8364.
Повний текст джерелаJun, Yong-Tae. "A feature-based reverse engineering system using artificial neural networks." Thesis, University of Warwick, 1999. http://wrap.warwick.ac.uk/3674/.
Повний текст джерелаCollins, Jill. "Modelling tribology of slider and disk in a computer hard drive system." Thesis, Aston University, 2001. http://publications.aston.ac.uk/7995/.
Повний текст джерелаMcWhorter, Tanner Maxwell. "Cognitive Electronic Warfare System." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1595708553000249.
Повний текст джерелаChen, Weiwei. "Out-of-order Parallel Discrete Event Simulation for Electronic System-Level Design." Thesis, University of California, Irvine, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3597427.
Повний текст джерелаThe large size and complexity of the modern embedded systems pose great challenges to design and validation. At the so called electronic system level (ESL), designers start with a specification model of the system and follow a systematic top-down design approach to refine the model to lower abstraction levels step-by-step by adding implementation details. ESL models are usually written in C-based System-level Description Languages (SLDLs), and contain the essential features, such as clear structure and hierarchy, separate computation and communication, and explicit parallelism. The validation of ESL models typically relies on simulation. Fast yet accurate simulation is highly desirable for efficient and effective system design.
In this dissertation, we present out-of-order parallel discrete event simulation (OoO PDES), a novel approach for efficient validation of system-level designs by exploiting the parallel capabilities of todays multi-core PCs for system level description languages. OoO PDES breaks the global simulation-cycle barrier of traditional DE simulation by localizing the simulation time into each thread, carefully delivering notified events, and handling a dynamic management of simulation sets. Potential conflicts caused by parallel accesses to shared variables and out-of-order thread scheduling are prevented by an advanced predictive static model analyzer in the compiler. As such, OoO PDES allows the simulator to effectively exploit the parallel processing capability of the multi-core system to achieve fast speed simulation without loss of simulation and timing accuracy.
We perform simulation experiments on both highly parallel benchmark examples and real-world embedded applications, including a JPEG image encoder, an edge detector, a MP3 audio decoder, a H.264 video decoder, and a H.264 video encoder. Experimental results show that our approach can achieve significant simulation speedup on multi-core simulation hosts with negligible compilation cost.
Based on our parallel simulation infrastructure, we then propose a tool flow for dynamic race condition detection to increase the observability for parallel ESL model development. This helps the designer to quickly narrow down the debugging targets in faulty ESL models with parallelism. This approach helps to reveal a number of risky race conditions in our in- house embedded multi-media application models and enabled us to safely eliminate these hazards. Our experimental results also show very little overhead for race condition diagnosis during compilation and simulation.
Overall, our work provides an advanced parallel simulation infrastructure for efficient and effective system-level model validation and development. It helps embedded system designers to build better products in shorter time.
Guo, Yue. "An investigation of model-based techniques for automotive electronic system development." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3722/.
Повний текст джерелаWong, Jessica Y. A. (Jessica Yien Ai) 1976. "An integrated system for measuring spectra of electronic flash sources." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86563.
Повний текст джерелаIncludes bibliographical references (p. 43).
by Jessica Y.A. Wong.
S.B.and M.Eng.
Schindler, Jiri. "Learning the structure and content of an electronic medical record system." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42784.
Повний текст джерелаIncludes bibliographical references (p. 104-107).
by Jiri Schindler.
M.Eng.
Mostert, Sias. "The transputer virtual memory system." Thesis, Stellenbosch : Stellenbosch University, 1990. http://hdl.handle.net/10019.1/69047.
Повний текст джерелаENGLISH ABSTRACT: The transputer virtual memory system provide, for the transputer without memory management primitives, a viable virtual memory system. This report evaluates the architecture and its parameters. The basic software is also implemented a.nd described. The disk subsystem with software and hard",,'are is also evaluated in a single disk environment. It is shown that the unique features of the TVM system has advantages and disadvantages when compared to conventional virtual memory systems. One of the advantages is that a conventional operating system with memory protection can now also be implemented on the transputer. The main conclusion is that this is a performance effective implementation of a virtual memory system with unique features that should be exploited further.
AFRIKAANSE OPSOMMING: Die transputer virtuele geheue verskaf, vir 'n verwerker sander virtuele geheue ondersteuning, 'n doeltreffende virtuele geheue stelsel. Die verslag evalueer die argitektuur en sy parameters. Die skyfsubstelsel met programmatuur en apparatuur word ook geevalueer in 'n enkel skyfkoppelvlak omgewing. Daar word bewys dat die upieke eienskappe van die TVG (transputer virtuele geheue) voor- en nadele besit wanneer dit vElrgelyk word met konvensionele virtuele geheue stelsels. Een van die voordele is dat 'n konvensionele bedryfstelsel met geheue beskerming nou op 'n transputer ge-implementeer kan word. Die hoofnadeel agv die spesifieke argitektuur gee slegs 'n 15% degradering in werkverrigting. Dit word egter slegs oar 'n sekere datagrootte ervaar en kom tipies nie ter sprake wanneer daar massiewe programme geloop word nie.
Simpson, Andrew J. R. "Selectivity and adaptation in the human auditory system." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/9112.
Повний текст джерелаTheron, Pieter. "Distributed control system network for an electrostatic roll separator." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2709.
Повний текст джерелаThe distributed control system network involves analog data acquisition nodes interconnected through CAN and USB protocol interfaces to form a network. The network is designed to be generically applicable to various control problems. This network of controllers was specifically utilised on a scaled-down electrostatic roll separator plant used in the mineral processing industry. A SISO and a MIMO regulator was designed to demonstrate the regulation of plant parameters. The MIMO regulator was employed in a scheme that optimises the plant yield automatically. Analog data acquisition nodes were designed and built especially for the purposes of this project. These nodes were installed on the electrostatic roll separator plant. PC based application software was written so that plant ID experiments could be performed. SISO and MIMO regulators along with a yield optimising scheme was designed and implemented in the application software. Both SISO and MIMO regulators successfully regulated plant outputs. The nonconducting mineral product grade was regulated by the SISO regulator. The non-conducting mineral product grade and conductor mineral mass flow was regulated by the MIMO regulator. The yield optimiser successfully employed the MIMO regulator to optimise the plant yield automatically.
Xin, Zhang. "Distributed Electronic Health Record System based on Middleware." Thesis, Mittuniversitetet, Institutionen för informationsteknologi och medier, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-18947.
Повний текст джерелаMa, Xiao. "Ontology engineering for ICT systems using semantic relationship mining and statistical social network analysis." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/63881/.
Повний текст джерелаFu, Jingsong. "ParPlum : a system for evaluating parallel program optimization methods." PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/4177.
Повний текст джерелаMohd, Anuar Fatahiyah. "Trade mark similarity assessment support system." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/73369/.
Повний текст джерелаShe, Chang. "A natural interaction reasoning system for electronic circuit analysis in an educational setting." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37071.
Повний текст джерелаIncludes bibliographical references (p. 42).
This thesis presents a sketch-based interaction system that can be used to illustrate the process of reasoning about an electrical circuit in an educational setting. Recognition of hand-drawn shapes is accomplished in a two stage process where strokes are first processed into primitives like lines or ellipses, then combined into the appropriate circuit device symbols using a shape description language called LADDER. The circuit is then solved by a constraint-propagation reasoning component. The solution is shown to the user along with the justifications that support each deduction. The level of detail and the speed of the solution playback can be customized to tailor to a student's particular learning pace. A small user study was conducted to test the performance of the recognition component, which revealed several recognition problems common to almost all of the users' experiences with the system. Suggestions for dealing with these problems are also presented.
by Chang She.
M.Eng.
Human, TM. "The design and development of a microprocessor based control system for an electric rail transport system." Thesis, Cape Technikon, 1988. http://hdl.handle.net/20.500.11838/1121.
Повний текст джерелаRadioactivity and radioactive radiation are two scientific phenomena which man has always approached with great caution, if not fear. Radioactive radiation cannot be sensed by any of the human senses and experience has proved just how hazardous it can be to the human body. This caution is therefore by no means unfounded and through the years a set of standards has been derived as to what can be regarded as a safe dose to the human body. At the National Accelerator Centre radioisotopes are being produced by a chemical recovery process from targets which have been irradiated by a high energy proton beam. Targets are prepared by compressing salts, containing the elements to become radioisotopes, into tablets. The high energy protons collide with particles in the targets which give off radioactive radiation. The targets in their turn become radioactive and the isotopes that are produced from these targets are radioactive. The level of radioactive radiation is extremely hazardous and it is therefore impossible for any human being to come into close contact with any of the targets or isotopes. It is for these reasons that an electrical rail transport system was installed at the National Accelerator Centre to transport highly radioactive sources. The transport system links the two irradiation vaults to the two rows of hot cells, where the chemical recovery takes place, and to a well shielded storage area for storage of isotopes and radioactive waste. A transport system, performing tasks of this nature, must be, above all, extremely reliable. Secondly, commands entered by an operator to control the system, must be simple and straight forward. This thesis describes the control of the transport system at the National Accelerator Centre, including alI of its features, advantages and disadvantages.
Elhabbash, Abdessalam. "Engineering self-awareness with knowledge management in dynamic systems : a case for volunteer computing." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7696/.
Повний текст джерелаSardesai, Shailesh. "On reliability estimation of large electronic systems." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1177012132.
Повний текст джерелаAltas, Daghan S. "System level design with systemC." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30781.
Повний текст джерелаBersch, Sebastian Dominik. "Artificial immune system for the detection of abnormal activity in ambient assisted living." Thesis, University of Portsmouth, 2014. https://researchportal.port.ac.uk/portal/en/theses/artificial-immune-system-for-the-detection-of-abnormal-activity-in-ambient-assisted-living(d9c60c16-d797-42ea-a6c0-ccd80f59acc4).html.
Повний текст джерелаLuo, Weizhi. "An intelligent radio access network selection and optimisation system in heterogeneous communication environments." Thesis, Queen Mary, University of London, 2010. http://qmro.qmul.ac.uk/xmlui/handle/123456789/544.
Повний текст джерелаTharf, Mohammed Saleh Hussein. "Computer modeling of electromagnetic interference, radiation, and crosstalk in electronic systems." Thesis, University of Ottawa (Canada), 1993. http://hdl.handle.net/10393/6693.
Повний текст джерелаSiu, Weng In. "Smart card based electronic ticket management system." Thesis, University of Macau, 2001. http://umaclib3.umac.mo/record=b1447838.
Повний текст джерелаEllis, Loftie. "Human-computer interface using a web camera." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/1988.
Повний текст джерелаIn this thesis we present a human-computer interface (HCI) system for disabled persons using only a basic web camera. Mouse movements are simulated by small movements of the head, while clicks are simulated by eye blinks. In this study, a system capable of face tracking, eye detection (including iris detection), blink detection and finally skin detection and face recognition has been developed. A detection method based on Haar-like features are used to detect the face and eyes. Once the eyes have been detected, a support vector machines classifier is used to detect whether the eye is open or closed (for use in blink detection). Skin detection is done using K-means clustering, while Eigenfaces is used for face recognition. It is concluded that using a web camera as a human-computer interface can be a viable input method for the severely disabled.
Tassoudji, Mohammad Ali. "Electromagnetic interference in electronic circuits and systems." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35392.
Повний текст джерелаIncludes bibliographical references (p. 191-198).
by Mohammad Ali Tassoudji.
Ph.D.
Sindle, Timothy Grant. "An autonomous, omnidirectional, digital, borehole imaging system." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50260.
Повний текст джерелаENGLISH ABSTRACT: This thesis documents the research, design, implementation and successful testing of a prototype camera probe to survey the inside of hard rock boreholes. Rock core images are intended to aid mine geologists in recording the borehole rock layers. The system consists of a wide-angle fisheye lens mounted onto a CMOS digital image sensor. The image data is read in and processed by an FPGA, then stored on a removable sn flash memory card. All of the aforementioned components are mounted inside a watertight Perspex tube. Application specific PC software is used to process the data to form strip images of the borehole wall. Using mathematical correlation, these images are stitched together into a virtual core that is a flattened representation of the rock inside the borehole. The probe contains its own power and light source which enables it to be deployed easily with no external wires needed for operation. The storage capacity, image quality, and lighting design can be improved in future design revisions.
AFRIKAANSE OPSOMMING: Die inhoud van hierdie tesis behels die navorsmg, ontwerp, implementering, en suksesvolle toetsing van 'n prototipe kameraprobe wat dit moontlik maak om die binnewand van boorgate in harde rots te besigtig. Beelde van die rotskern vergemaklik die taak van myngeoloë wat die rotslae, waardeur die boorgat strek, moet opteken. Die stelsel behels 'n wyehoek bollens wat op 'n CMOS digitale sensor gemonteer is. Die data gewerf vir die vorming van die beeld word deur 'n FPGA ingelees en verwerk, waarna dit op 'n verwyderbare SD flits geheuekaart gestoor word. Die bogenoemde komponente word alles binne 'n waterdigte Perspexbuis monteer. Gebruikerspesifieke sagteware vir persoonlik rekenaars word gebruik om die data te verwerk en sodoende strookbeelde van die binnewand van die boorgat te vorm. Met gebruik van wiskundige korrelasie word hierdie beelde aan mekaar gelas om 'n virtuele kern te vorm, wat 'n voorstelling is van die rots binne die boorgat. Die probe bevat self krag en ligbronne, wat toelaat dat dit maklik bruikbaar is sonder enige eksterne bedrading. Toekomstige hersienings van die ontwerp sal verbeterde data geheue, beeldgehalte en beligting kan bewerkstellig.
Viller, Stephen Alexandre. "Human factors in requirements engineering : a method for improving requirements processes for the development of dependable systems." Thesis, Lancaster University, 1999. http://eprints.lancs.ac.uk/11686/.
Повний текст джерелаThompson, Keith R. "Implementation of gaussian process models for non-linear system identification." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/1367/.
Повний текст джерелаKim, Injoong. "Development of a knowledge model for the computer-aided design for reliability of electronic packaging systems." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/22708.
Повний текст джерелаCommittee Co-Chair: Peak, Russell; Committee Co-Chair: Sitaraman, Suresh; Committee Member: Paredis, Christiaan; Committee Member: Pucha, Raghuram; Committee Member: Wong, C.
Bennasar, Mohamed. "Clinical decision support system for early detection and diagnosis of dementia." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/73073/.
Повний текст джерелаYuh, Han-Sheng. "Spider: An overview of an object-oriented distributed computing system." CSUSB ScholarWorks, 1997. https://scholarworks.lib.csusb.edu/etd-project/1417.
Повний текст джерелаJohnson, Thomas Alex. "Integrating models and simulations of continuous dynamic system behavior into SysML." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24768.
Повний текст джерелаShepherd, Robert. "The generation and classification of small leaks in a high pressure water system." Thesis, City University London, 2011. http://openaccess.city.ac.uk/1174/.
Повний текст джерелаDai, Shanshan. "Low power high resolution electronic driver for deformable mirror systems." Thesis, Boston University, 2012. https://hdl.handle.net/2144/21143.
Повний текст джерелаThis thesis presents an integrated driver for deformable mirror array based on the architecture proposed in Horenstein, et al's "Ultra-low power multiplexed electronic driver for high resolution deformable mirror systems." The integrated driver consists of numerous high voltage (HV) analog switches connecting the deformable mirror cells, on demand by low-voltage digital control signals, to the HV analog signal line, and a HV power amplifier used to drive the HV analog signal line. The reduction of power consumption is essential in both HV power amplifier and analog switch designs for utilization of deformable mirror systems in space-based applications. In addition to low power design, this work also focuses on the analysis and design of multi-stage amplifier capable to drive large load capacitor, and HV analog switch robust to analog signal noise during OFF state. The specific research contributions of this work include (1) A feed-forward stage in combination with a class B output stage is proposed in the HV multi-stage power amplifier structure to improve the large-signal performance when driving large capacitive load. (2) A low voltage level-shifter and a voltage clamp are added in conventional HV analog switch to reduce the interference from the noisy analog signal line.
2031-01-01
Ha, Sungjae. "Electronic systems for interfacing with new materials and devices." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99827.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 163-173).
The focus of this thesis is to explore and demonstrate electronics systems utilizing new materials and devices beyond the traditional ones solely based on Si CMOS technology. The first part of this thesis is to explore the combination of Bio-MEMS devices with traditional electronics as an effective diagnostic tool. In the case study of malaria, we report a microfluidic device as part of a continuous-flow cellular impedance spectroscopy system and a new data analysis method to differentiate Plasmodium falciparum-infected human erythrocytes including the early ring stage. The next parts of this thesis focus on two-dimensional (2D) materials which are believed to be a tool set for future electronics. In particular, graphene is explored as a new infrared sensitive material that can be used for sensors in mid- and long-wavelength infrared spectrum ([lambda] = 2- 15[mu]m) imaging systems. We demonstrate a Si CMOS-based readout IC and monolithic integration of an array of > 4000 electronically tunable graphene thermocouples. The prototype system shows that use of 2D material as add-on parts of the conventional technology can lead to development of new types of electronic applications. In addition to combinational uses with Si CMOS technology, 2D materials and their heterostructures have the potential to be used as stand-alone electronic systems. In the latter part of the thesis, we present a computer-aided design (CAD) flow for large-scale MoS₂ electronics. Combined with the state-of-the-art fabrication technology and the physics-based device model for MoS 2 FETs, a switched capacitor DC-DC converter, a half-wave rectifier, and a voltage doubler are implemented, and good agreement between simulation and measurement is observed. The presented CAD flow enables large-scale integrated circuit design on MoS₂ technology and paves the way for ubiquitous, flexible and possibly transparent electronics, such as printed RFID tags and transparent display drivers. Utilizing these design concepts, we push the capability of current electronics beyond its traditional boundaries.
by Sungjae Ha.
Ph. D.
Barry, Richard Malan. "Design of a distributed satellite ground system." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52180.
Повний текст джерелаENGLISH ABSTRACT: This thesis describes the development of a distributed ground support system to be used in the small satellite program at the University of Stellenbosch. A literature study was done to determine the current trends in ground support design. These trends are presented together with an analysis of the SUNSAT groundstation software. New technologies in the field of distributed systems are discussed and used in the design of a distributed ground support system. The design centres around a servicesbased architecture where services are distributed on the network. The design is evaluated according to attributes exhibited by effective distributed systems. Certain services were implemented to demonstrate the feasibility of the design. The implementations are discussed and suggestions are made for future improvements and fields of possible further study.
AFRIKAANSE OPSOMMING: Hierdie tesis beskryf die ontwikkeling van 'n verspreide-grondstasie-sisteem vir gebruik in die Universiteit van Stellenbosch se satelliet-program. Eerstens is 'n literatuurstudie gedoen om die huidige verwikkelinge in die veld van satellietondersteuning-ontwikkeling vas te stel. Hierdie verwikkelinge word bespreek en gebruik om die SUNSAT-grondstasie sagteware te evalueer. Nuwe tegnologieë in die veld van verspreide stelsels word ondersoek en bespreek. Die ontwerp van die grondstasie is gebaseer op 'n verspreide dienste argitektuur. Die ontwerp word beskryf en geëvalueer aan die hand van kenmerke tipies van 'n effektiewe verspreide stelsel. Om die werkbaarheid van die ontwerp te toon, is sekere van die dienste geïmplimenteer, en die funksionering daarvan word bespreek. Voorstelle word ook gemaak oor moontlike toekomstige navorsing wat gedoen kan word.
Jamieson, Andrew George. "A novel systems design approach to wireless sensor networks for industrial applications." Thesis, University of Glasgow, 2008. http://theses.gla.ac.uk/424/.
Повний текст джерелаWang, Koping. "Spider II: A component-based distributed computing system." CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/1874.
Повний текст джерелаAlmoumen, Sana's Hassan M. "Requirements engineering for e-commerce : a principle-driven analysis and assessment approach and guideleines on good practices for developing multicultural e-commerce systems." Thesis, Lancaster University, 2003. http://eprints.lancs.ac.uk/12226/.
Повний текст джерелаMostert, Sias. "A computational architecture for real-time systems." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51562.
Повний текст джерелаENGLISH ABSTRACT: The engineering of dependable real-time systems for mission critical applications is a resource intensive and error prone process. Achieving dependability requires a general consensus on the correctness of a system with regard to its intended function. For a consensus to be achieved, the properties of the system must be well understood which, in turn, requires consensus on a rigorously defined computational architecture. There is currently no single agreed upon computational architecture at the application level which can serve as a common denominator for the design and implementation of real-time systems. It is the thesis of this dissertation that a rigorous computational architecture, applicable from design to implementation, enables engineers to better understand software for real-time systems. To substantiate this claim, the real-time data flow architecture RDF with its notation allowing the description of complete systems from design to implementation will be explored. Four distinct research areas for improving the engineering process of real-time systems are dealt with in the dissertation: 1) the development of an architecture for real-time systems being suitable for design and implementation in software and hardware, 2) the consolidation of a number of graphical languages into a graphical notation for functional specification, design and construction of real-time systems, 3) the development of a simple processor architecture for the execution of real-time applications, and 4) and the evaluation of the architecture in the framework of a microsatellite case study. In particular, the following original contributions are made: 1) the firing semantics of data flow systems are expanded to include disjunctive firing semantics in a novel way in addition to the classical conjunctive firing semantics, 2) the inherent real-time data flow property, Le. that a receiving task must be ready to receive the next incoming message when it is sent, is extended to the synchronous data flow model, 3) a notation for describing all properties of real-time systems is defined 'with the real-time data flow language RDF as base language, 4) two hardware processor architectures are introduced that offer one-to-one correspondence between design and implementation and, thus, reduce the semantic gap between design language and program execution, and 5) the class of systems that can be modelled with data flow architectures is shown to include control systems and data flow systems. The language set and processor architecture were applied to certain aspects of the SUNSAT microsatellite project.
AFRIKAANSE OPSOMMING:Die skep van betroubare intydsestelsels vir missie kritiese toepassings is 'n proses wat baie hulpbronne verg en waarin maklik 'n fout gemaak kan word. Om 'n betroubare stelsel te skep vereis 'n konsensus oor die korrektheid van 'n stelsel, wat bereik word wanneer die eienskappe van die stelsel goed verstaan word. Dit vereis op sy beurt weer 'n konsensus oor 'n goed gedefinieerde berekenings argitektuur. Daar is tans geen enkel ooreengekome berekenings argitektuur op die toepassingsvlak wat kan dien as 'n gemeenskaplike voertuig vir die ontwerp en implementering van intydsestelsels nie. Dit is die hipotese van die proefskrif dat 'n berekenings argitektuur met 'n streng basis, wat toegepas kan word vanaf ontwerp tot implementering, ingenieurs in staat sal stel om intydsestelsels beter te kan verstaan. Die hipotese word ondersoek deur die intydse datavloei argitektuur, RDF, te gebruik om 'n stelsel vanaf ontwerp tot implementering te beskryf. Daar is vier spesifieke navorsings areas ter verbetering van die ingenieurswese proses vir intydsestelsels, wat in die proefskrif aangespreek word: 1) die ontwikkelling van 'n argitektuur vir intydsestelsels wat geskik is vir die ontwerp en implementering in programmatuur en apparatuur, 2) . die konsolidering van 'n aantal grafiese tale in 'n grafiese notasie vir die funksionele spesifikasie, ontwerp en implementering van intydsestelsels, 3) die ontwikkelling van 'n eenvoudige verwerker argitektuur vir die uitvoering van intydse toepassings en 4) die evaluering van die argitektuur in die konteks van 'n mikrosatelliet gevallestudie. Die volgende oorspronklike bydraes word gemaak: 1) die sneller voorwaardes vir datavloei stelsels word uitgebrei met 'n disjunktiewe patroon saam met die tradisionele konjunktiewe patroon, 2) die inherente intydse datavloei eienskap, n.l. dat'n taak wat boodskappe ontvang, alle verwerking wat met 'n vorige boodskap gepaard gegaan het moet afhandel, voordat 'n volgende boodskap ontvang word, word uitgebrei na die sinkrone datavloei model, 3) 'n notasie om al die eienskappe van 'n intydsestelsel te beskryf word gedefinieer met RDF as die basis taal, 4) twee apparatuur verwerker argitekture word beskryf wat 'n een-tot-een kartering aanbied tussen die ontwerp en die implementering, en wat gevolglik die semantiese gaping verklein tussen ontwerpstaal en die uitvoeringsargitektuur en 5) die klasse van stelsels wat gemodelleer kan word met RDF sluit beheerstelsels en datavloeistelsels in. Die grafiese notasie en verwerker argitektuur was toegepas op sekere aspekte van die SUNSAT mikrosatelliet projek.
Khaw, Fook Cheon. "An expert system for adaptive part routing in computer integrated manufacturing." Ohio : Ohio University, 1987. http://www.ohiolink.edu/etd/view.cgi?ohiou1183047615.
Повний текст джерелаJordaan, Jacques. "The evaluation of a SoC processor as an on-board computer for a low earth orbit satellite." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50487.
Повний текст джерелаENGLISH ABSTRACT: The use of commercial-off-the-shelf components in low earth orbit (LEO) satellite systems has become a very popular design trend. Not only are many of these components sufficiently radiation tolerant, but are also less expensive than their space qualified counterparts. Commercial processors are already used in the on-board computer (OBC) of satellites like SUNSAT 2004, CanX and SNAP-I. With the increasing demand for smaller, less expensive satellites and a shorter time-to-market window, the feasibility of implementing a satellite's OBC as a system-on-a-chip (SoC) is now considered. This thesis describes a single-chip implementation, excluding memory, of a LEO microsatellite's OBC on the commercial grade Altera Excalibur embedded processor. A typical satellite OBC system was developed on the Excalibur device to test the functionality and performance of the device as a single-chip OBC.
AFRIKAANSE OPSOMMING: Die gebruik van kommersiële komponente in lae aardwentelbaan satelliet stelsels het 'n baie gewilde ontwerps neiging geword. Meeste van hierdie komersiële komponente is nie net voldoende bestand teen die radiasie in die ruimte nie, maar boonop goedkoper as soortgelyke komponente wat spesifiek vir de ruimte vervaardig is. Kommersiële verwerkers word alreeds gebruik in die aanboord rekenaar (AR) van satelliete soos SUNSAT 2004, CanX and SNAP-I. Met die aahoudende aanvraag vir kleiner, goedkoper en 'n korter ontwikkelings tydperk, word die implementering van 'n satelliet se AR as 'n stelsel-op-'nskyfie nou oorweeg. Hierdie tesis beskryf 'n enkel-skyfie implementasie, geheue uitgesluit, van 'n lae aardwentelbaan mikrosatelliet se AR op die kommersiële Altera Excalibur geïntregreerde verwerker. 'n Tipiese AR stelsel was ontwikkelop die Excalibur verwerker om die funksionaliteit en werkverrigting van die toestel as 'n enkel-skyfie AR te toets.
Tam, Tony. "Identity-Based Encryption on resource constrained embedded system." Thesis, California State University, Long Beach, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1569592.
Повний текст джерелаThe use of smart embedded device has been growing rapidly recently because of the miniaturization of sensors and platforms. A resource-efficient Public Key Cryptography (PKC) is very desirable for the resource-constrained embedded system. Whereas most public key security protocols requires both public and private keys to be generated together, Identity Based Encryption (IBE), a public key cryptography protocol, allows the public key to be generated from an arbitrary string. IBE has been actively researched and deployed, but conventional IBE primitives are still computationally demanding and may not be suitable for all embedded system. Simplified version of the identity based encryption is available and satisfies the tight budget of the embedded platform. In this thesis, we describe the implementation of lightweight IBE based on elliptic curve in resource-constrained embedded sensor nodes. We also compare and contrast its performance with the conventional pairing-based approach.