Tesis sobre el tema "Electric technologie"
Crea una cita precisa en los estilos APA, MLA, Chicago, Harvard y otros
Consulte los 50 mejores tesis para su investigación sobre el tema "Electric technologie".
Junto a cada fuente en la lista de referencias hay un botón "Agregar a la bibliografía". Pulsa este botón, y generaremos automáticamente la referencia bibliográfica para la obra elegida en el estilo de cita que necesites: APA, MLA, Harvard, Vancouver, Chicago, etc.
También puede descargar el texto completo de la publicación académica en formato pdf y leer en línea su resumen siempre que esté disponible en los metadatos.
Explore tesis sobre una amplia variedad de disciplinas y organice su bibliografía correctamente.
Svoboda, Jiří. "Nekonvenční technologie elektroerozivního drátového řezání". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229332.
Texto completoKalous, Ondřej. "Racionalizace technologie výroby forem". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231505.
Texto completoTollrian, Zdeněk. "Technologie opracování středicích nákružků a patek elektromotoru v systému řízení výroby". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230297.
Texto completoDuhaime, Eric. "Capital et inventivité : de l'intellect général à General Electric". Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAC004/document.
Texto completoThis dissertation aims to clarify the economic role of science and technology within capitalism. To this end, it is first rooted in a discussion of the ideas elaborated by Karl Marx on this topic in respect with the industrial capitalism that was unfolding before him. Taking into account the transition from industrial to advanced capitalism, this dissertation then seeks to question the economic role of scientific and technological production into the specific context of advanced capitalism. Supporting an opposing view to the theory of “immaterial economy”, as developed by Michael Hardt and Antonio Negri, this dissertation has a twofold objective. On the one hand, it aims to uncover and reconstruct the way Marx problematizes the relationship of science and technology to the economical dynamics of his time and, on the other hand, to clarify the issues relating to the integration of scientific and technological production into contemporary economical dynamics
Bartoš, Pavel. "Elektroerozivní drátové řezání". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229873.
Texto completoJanás, Milan. "Volba vhodné technologie pro výrobu svařované konstrukce elektrokotle JE 12 a JE 6". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-317189.
Texto completoLiu, Xiaojun. "Hygiénisation par technologie électrique de déchets alimentaires en vue de leur méthanisation". Thesis, Lorient, 2019. http://www.theses.fr/2019LORIS602.
Texto completoThe European Union regulation (CE n°1069/2009) imposes a step of hygienization (thermal treatment at temperature ≥ 70 °C for a treatment time ≥ 60 min without interruption) before anaerobic digestion of certain biowaste issued from the agricultural and food processing industries. This energy-consuming treatment reduces the profitability of biogas production facilities. The literature review shows that, in Europe, the energy consumption of the thermal hygienization process accounts for around 6 to 25% of the primary energy produced by biogas plants. In the present PhD thesis, the alternative solutions for the microbial pasteurization, namely the electro- technologies (e.g. pulsed electric field, PEF) were studied. These technologies are essentially developed for the athermal inactivation of pathogens in food products. The bacterial strains Enterococcus faecalis ATCC 19433 and Escherichia coli ATCC 25922 were selected as indicator bacteria. A systematical study on the inactivation kinetics of the indicator bacteria treated at different electric parameters in batch and continuous system was realized. The efficiency of the treatment coupling PEF and ohmic heating, the effect of the specific energy delivered by PEF, the recovery of the injured bacteria and the kinetic and numeric modeling of the process were investigated as well. Results confirm the ability of PEF to hygienize animal by- products (i.e. a reduction of 5 log10 of Ent. faecalis) in batch and continuous system. The PEF treatment coupled with ohmic heating could significantly reduce the energy consumption of the process
Larhzaoui, Thomas. "Fiabilisation de la technologie courant porteur en ligne en vue de piloter des actionneurs d’aéronefs". Thesis, Rennes, INSA, 2014. http://www.theses.fr/2014ISAR0009/document.
Texto completoIn the new aircrafts, hydraulic flight control systems are replaced by electric flight control systems. The main interests are a better flexibility of the aeronautical equipments and a decrease in maintenance costs and construction costs, but the major problem is the increasing of the wires length. In order to decrease this length, it has been proposed to use power line communications (PLC) technology for flight control systems. The decrease of wire will first decrease aircraft weight and therefore the consumption of kerosene and on the other hand will simplify maintenance and construction. The first part of this work is the measurement and the characterisation of the propagation channel on an aeronautic test bench (with HVDC supply and loads). This channel is composed of two couplers (inductive or capacitive) in order to connect the telecommunication system on the power wires with galvanic isolation and one twisted pair of 32 m longs. We have tested three architectures: the point-To-Point architecture with capacitive coupler, the point-To-Point architecture with inductive coupler and the point-To-Multipoint architecture with inductive coupler. The purpose of these measurements is to measured the transfer function on the [1 ; 100] MHz bandwidth. Then, we have computed the channel parameters like the coherence bandwidth and the delay spread. The second step was the design of the signal processing algorithm in order to satisfy the aeronautical specifications: a useful bite rate of 10 Mbit/s, a latency of 167- 334 μs, a BER of 10-12 and the respect of the DO-160 gauge in conducted emissions. For the transmissions, we have chosen the OFDM technology which has been use with success in other PLC systems. With the channel characterization, we have proposed a parametric study in order to define the OFDM parameters to satisfy the bite rate and the real time constraints. After, we compute digital simulations with Matlab to check the OFDM parameters. With these simulations, we have also defined the channel coding parameters (Reed-Solomon and convolutional coding) to satisfy the aeronautical specifications. The last part of this study was the design of the synchronisation system. Because of the channel stability, we considered a precise synchronisation after an initialisation period. Then, we focus on the estimation of the FFT shift, due to the sampling frequency shift, during a following-Up period. In order to avoid the decrease of the latency and the bitrate due to the pilot symbols or pilot sub-Carriers insertion, we proposed to correct the FFT shift with the receive data thanks to the maximal likelihood algorithm
Uudelepp, Oscar, Ellen Nordén y Douglas Lowén. "Electric Bike : Independent Project in Electrical Engineering". Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353617.
Texto completoChavez, Henry. ""Dreaming of electric sheep" Les cycles techno-économiques du système mondial et le développement technoscientifique en Équateur : sources et limites du projet postnéolibéral ( 2007 – 2016 )". Thesis, Paris, EHESS, 2017. http://www.theses.fr/2017EHES0090.
Texto completoBased on a historical study of the relationship between the techno-economic cycles of the global system and the economic, political and ideological transformations in Ecuador, this research presents a critical analysis of the development process of the technoscientific field in this country and the post-neoliberal modernization project implemented by its government between 2007-2017. The thesis has two parts. The first one develops an analysis on three levels: the relationships between the global techno-economic cycles and the political and economic transformations in Ecuador; the relationships between these transformations, the waves of modernization of the Ecuadorian higher education system and the reproduction of local elites; and the relationship between the latter and the scientific, technological and industrial development of the country. The second part presents a detailed study of the last cycle, characterized by the implementation of the post-neoliberal project of technoscientific modernization. This study focuses, particularly, on three projects: the higher education reform, the scholarship program for studies abroad and the Yachay technopole project. These analysis results reveal the ideological character of these projects, designed and directed by the same network of intellectuals and financed by the rise of commodity exports which accompanied this upward phase of the peripheral cycle. Trapped in their ideological quest for an alternative development model and the constraints imposed by the transformation processes of the global system, these actors have finally produced a contradictory modernization project based on an empirical abstraction adapted to their needs for political legitimization. The end of the economic upswing has unveiled the limits of this ideological project whose concrete results are a heavier bureaucracy, waste of public resources and the accumulation of power. We suggest that this result is an effect of the three interrelated processes: the gap between the transformation cycles at the periphery and at the center of the global system, the global reconfiguration linked to the rise of Chinese influence and the deployment of the latest techno-economic wave of innovation. This research aims thus to contribute to the debate on the historical transformations of the global system
Rotureau, David. "Développement de piles à combustible de type SOFC, conventionnelles et mono-chambres, en technologie planaire par sérigraphie". Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2005. http://tel.archives-ouvertes.fr/tel-00009968.
Texto completola première partie des travaux a consisté à caractériser les propriétés physico-chimiques et électriques des matériaux choisis, sur des frittés d'abord et ensuite sur des couches sérigraphiées de YSZ, LSM ou NiO-YSZ. Ces caractérisations ont montré une bonne adaptabilité de nos matériaux pour une application pile à combustible.
La seconde partie a consisté à tester les prototypes réalisés sur l'électrolyte support, et sur anode support avec les électrodes et l'électrolyte déposé par sérigraphie. Les faibles performances obtenues sont surtout dues à la faible température de fonctionnement (800°C), à l'épaisseur de l'électrolyte support (environ 1mm)ou à la porosité des couches de YSZ par sérigraphie. Enfin, nous avons en même temps testé un dispositif original qui consiste à exposer les deux électrodes à un mélange de combustible et du comburant. Ce dispositif mono-chambre prometteur inspiré de l'expérience des capteurs potentiométriques développés au laboratoire par Nicolas Guillet (2001), permet de s'affranchir des problèmes d'étanchéité des deux compartiments gazeux. De plus, les performances obtenues ne sont que deux fois moindres par rapport à celles obtenues avec une pile conventionnelel à deux chambres gazeuses.
Paulino, Clóvis Aparecido. "Estudo de tecnologias aplicáveis à automação da medição de energia elétrica residencial visando à minimização de perdas". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-13122006-151957/.
Texto completoIn these days, the energy measurement system for residences in urban areas is carried out by eletromechanical meters, which are read manually. Several problems have been observed in this process, which we can emphasize: reading errors, difficulty to access the measurement place, outdated databases, etc. The reading and the measurement automation processes, based in the current eletromechanical meters or with the electronic version of these equipment, besides solving the mentioned problems, have several advantages, such as: minimization of fraud and robbery of energy, implementation of differentiated rates depending on the time of the day (ex:yellow rate), remote energy switch-off and switch-on, implementation of a prepaid system, possibility to get the load curve of each consumer and elimination of error and costs embedded in the manually reading process. On the other hand, we can observe that in Brazil there are an estimated 43 millions residential meters already installed, and the costs for the current measurement system, and also of the meters, are very low. In this scenario, the implementation of a automated system for residential energy measurement is that the proposed system has a very low cost at the same time provides a high reliability. The proposed automation system will consider the reutilization of the current mechanical meters, with the installation of an electronic systems for the consumption data collection, communicating with local concentrators, which in their turn are linked to a computing systems in the energy company. The results of the present work show that, nowadays, there is a real possibility to get, a trustable and cheap automated measurement system for energy in residential urban area. The proposed work is the development of an automated system, for residential energy measurement in urban area. It's composed of a concentrator module for eight residences, with communication from this point to the energy company's operation center. It will be presented a methodology to implement such a system and also a case study.
McCown, Eddie E. "Systems engineering technology readiness assessment of hybrid-electric technologies for tactical wheeled vehicles". Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43955.
Texto completoThe Department of Defense is the largest federal government consumer of fossil fuel. The military has been severely limited by the burden of petroleum-based fuel technologies, which have greatly hindered the military’s ability to conduct operational missions in support of worldwide commitments. The military’s interoperability is hindered by an insatiable worldwide demand for fuel supply and a profound dependence on other countries, especially hostile nations for fuels. Improvements in technology are critical to meeting energy goals. One solution could be the use of hybrid-electric vehicles. Hybrid-electric technology (HET) offers significant opportunities for the military to meet the growing demands for reduced fuel consumption and increased combat vehicle performance. With fuel costs as high as $500 per gallon in the battlefield, according to Gen. James T. Conway, former Commandant of theMarine Corps, it is astonishing that hybrid-electric (HE) military tactical wheeled vehicles have not been deployed. This study presents a technology readiness assessment of the benefits and challenges relative to cost, maturity and technical complexity of the HE system for military vehicle applications. It describes the potential benefits offered should the military make the leap into HET.
Liakouti, Achraf. "Analyse et modélisation de rayonnement électromagnétique des réseaux CPL". Thesis, Université Clermont Auvergne (2017-2020), 2017. http://www.theses.fr/2017CLFAC063/document.
Texto completoThe use of electric cables as a support for transmitting digital data for applications such as Internet access or home automation is certainly very attractive. However, unintentional electromagnetic radiation (EM) from such wire systems for PLC transmission may be a source of EM pollution and a problem of electromagnetic compatibility (EMC). Therefore, the evaluation of the corresponding radiations in the near-field zone is of a certain interest. In this manuscript, a mathematical model for estimation of the electromagnetic radiation from wire conductors used by the PLC technology is presented. From the EMC standpoint, the radiation of a PLC network is observed from the aspect of the emission levels. The corresponding radiated values of the fields may be appropriately determined if the current distribution in the PLC network is known. However, in practice the approach to measuring these currents is very difficult or even impossible. Therefore, a simplified approach based on the integral equations of the electromagnetic fields is proposed in order to adequately quantify EM radiation from PLC wire conductors in cases of least measured data. Also, this model may be applied in cases where estimation of current distribution is numerically difficult even by using existing numerical software (FEKO, NEC, etc.). The proposed model is validated either by simulations compared to FEKO software, or experimentally through a comparative test case studies
Serdyn, J. J. "Electronic voltage regulator technology for rural electrification". Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/903.
Texto completoHeim, Gregory R. "Management of technology and quality in electronic consumer service operations : applications to electric food retailing /". Diss., ON-CAMPUS Access For University of Minnesota, Twin Cities Click on "Connect to Digital Dissertations", 2000. http://www.lib.umn.edu/articles/proquest.phtml.
Texto completoVasic, Dejan. "Apports des matériaux piézoélectriques pour l'intégration hybride et monolithique des transformateurs". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2003. http://tel.archives-ouvertes.fr/tel-00789774.
Texto completoMeyer, Bernard. "Opportunities for in-line, transistorbased technologies on MV and LV power distribution networks". Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51864.
Texto completoENGLISH ABSTRACT: Once more opportunities exist for innovative technologies to be applied on MV and LV power distribution networks to meet the new challenges set by government through its National Electrification Programme (NEP) to electrify a further 2,5 million households of which a large majority are in low-density rural areas. Electronic means of voltage compensation of long MV and LV networks supplying these low-density rural areas are now possible in the form of electronic voltage regulators mounted on the secondary side of distribution transformers and service connection boxes along the LV feeders. Furthermore, it is now possible to provide remote rural agricultural customers with singlephase supplies supported by end-use technologies in the form of electronic phase converters that eliminate the need for three-phase supplies. This hybrid of supply- and end-use technologies together with Eskom's "self-build" policy has made the dream of Eskom grid power a reality.
AFRIKAANSE OPSOMMING: Nuwe geleenthede het na yore getree vir die toepassing van innoverende tegnologie op medium- en laagspannings netwerke in antwoord op die uitdagings gestel deur die regering in die vorm van die Nasionale Elektrifiseringsprogram (NEP). Die elektrifisering van 'n verdere 2,5 miljoen huishoudings waarvan die grootste gedeelte in yl bevolkte plattelandse gebiede is, word in vooruitsig gestel. Spanningskompensasie van lang laag- en mediumspannings netwerke word nou moontlik gemaak deur middel van elektroniese spanningsreguleerders, gemonteer aan die sekondere kant van distribusie transformators en in diensaansluitingskaste op laagspannings voerders. Verder is dit ook nou moontlik om afgelee landelike plase met enkelfase krag, gerugsteun deur eindverbruik tegnologie in die vorm van elektroniese fase omsetters, te voorsien. Die beskikbaarheid van hierdie tegnologie elimineer die vraag na drie-fase krag. Hierdie hibriede kombinasie van toevoer- en eindverbruik tegnologie in kohesie met die selfbou beleid van Eskom, maak dit moontlik dat 'n droom van Eskom voorsiende elektrisiteit, in 'n werklikheid omskep word.
Bowlin, Oscar E. "Modeling and simulation of the free electron laser and railgun on an electric Naval surface platform". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Mar%5FBowlin.pdf.
Texto completoParker, Andrews James. "Nanocluster technologies for electronics design". Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369176.
Texto completoZacot, Chimi I. "Shipboard wireless sensor networks utilizing Zigbee technology". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Sep%5FZacot.pdf.
Texto completoThesis Advisor(s): Xiaoping Yang. "September 2006." Includes bibliographical references (p. 59). Also available in print.
Lin, Han-Hsuan. "Handling of Environmental Related Requirements : Awareness and Ability to Act at Small and Medium Sized Electric and Electronic Companies". Thesis, Linköping University, Environmental Technique and Management, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-53182.
Texto completoEnvironmental related product requirements are increasing worldwide from government authorities, customers and other stakeholders. For small and medium sized companies manufacturing electric and electronic products it is more difficult compared to bigger companies to meet new product related requirements due to smaller budget, resources and knowledge. This research studies the awareness and ability to act upon changes when small and medium sized companies in Sweden face environmental related requirements.
The result is compared to previous conducted studies in a number of Asian countries. The study has been conducted through face-to-face interviews (12 companies), phone interviews (6 companies), and questionnaires (50 companies). After a preliminary literature study and targeting of objective companies interviews were made at first with the questionnaire study based on results from the interviews. In total, respondents from 68 companies participated in this research. Results from the study reveal that companies both in Sweden and Asia experience the same directives from EU and that WEEE and RoHS have had the biggest impact upon companies. Outside the EU market, companies do not comply with the legislations in the same way. There is a difference in how Swedish companies choose to treat environmental related product requirements as compared to electric and electronic companies in Asia. Furthermore, legislations are a very effective form to affect companies’ environmental work and adaptations, especially if it is imposed directly on the product itself. Both Swedish and Asian companies feel they need more education, more information about environmental related product requirements and more support from government authorities in order to cope with increasing demands from customers and legislations.
Falahi, Khalil El. "Contribution à la conception de driver en technologie CMOS SOI pour la commande de transistors JFET SiC pour un environnement de haute température". Thesis, Lyon, INSA, 2012. http://www.theses.fr/2012ISAL0056/document.
Texto completoIn aeronautics, electrical systems progressively replace mechanical and hydraulic control systems. If the electronics can stand the absence of cooling, the immediate advantages will be the reduction of mass, increased performances, admissible reliability and thus reduction of costs. In aircraft, some important steps have already been performed successfully when substituting standard systems by electrical control system such as electrical brakes, thrust reverser, electrical actuators for flight control… Large band gap semiconductors (SiC, GaN…) have eased the operation in high temperature over the last decade and let overcome a weakness of conventional silicon systems (Si). High temperature power components such as Schottky diodes or JFET transistors, are already commercially available for a use up to 220°C, limited by package. Moreover inverters based on SiC JFET transistors have been realized and characterized at high temperature. Finally the control part of these power systems needs to be designed for harsh environment. It is in this context of lack of integrated control part that the FNRAE COTECH project and my doctoral research have been built. Based on a state of the art about drivers, the complex link between electronic and temperature and the potentialities of CMOS Silicon-On-Insulator technology (SOI) for high temperature applications have been underlined. The characterization of commercial SOI drivers gives essential data on these systems and their behavior at high temperature. These measurements also highlight the practical limitations of SOI technologies. The main part of this manuscript concerns the design and characterization of functions or IPs for high temperature JFET SiC driver. Two SOI runs in TFSmart1 have been realized. The developed functions include the driver output stage, associated buffers and protection functions. The drivers have been tested from -50°C up to 250°C without failure under short time-range. Moreover, an original protection function has been demonstrated against the short-circuit of an inverter leg. This function allows overcoming the main limitation of the normally on JFET transistor. Finally, an inverter module has been built for in-situ test of these new drivers
Ben, Slimane Tarek. "A Xenon Collisional Radiative Model for Electric Propulsion Application : Determining the electron temperature in a Halleffect Thruster". Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278506.
Texto completoHalleffektmotorer (HET) som använderXenon som bränsle är idag vanliga ochanvänds pga sin höga effektivitet. För att förstå dynamiken bakom en Xenonplasmaurladdningi motorn har vi utvecklat en kollisions-radiativ (CR) modellför Xenon inspirerad av arbetet i Karabadzhak et al. [1]. Modellen kommer attkombineras med PIC-simuleringar och OES-mätningar. CR-modellen bestårav 15 nivåer av Xenon och inkluderar excitering från kollisioner med elektroneroch strålning. Absorption implementerades i modellen genom att användaen ”escape factor”-approximation och en maxwelliansk uppskattning avEEDF. De första mätningarna genomfördes med en hypotes om termisk jämvikt.Icke jämvikts-resultat jämfördes därefter med relevanta förhållanden förmotorerna, vilket gav en förståelse för excitationsnivåernas kinetik och ger enmodell som beskriver de dominanta processerna under dessa förhållanden.Därefter undersöktes metoden med kvoten av spektrallinjers intensitet frånKarabadzhak et al. [1] med den framtagna modellen. Kvoterna av spektrallinjersintensitet togs fram på ett annat sätt och överensstämde relativt väl förkvoten av spektrallinjerna 823-828 nm. För 835-828 nm-kvoten kunde skillnaderiakttas, vilket kan tyda på att andra processer behöver inkluderas.
Rossouw, Frans Jacobus. "Analysis of voltage regulation and network support technologies". Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51588.
Texto completoENGLISH ABSTRACT: Recent advances in semiconductor device development pushed a large number of network devices onto the market. These devices can solve network problems more effectively and economically than ever before. Network planners need tools to analyse and implement such devices to help solve the largest network problem in South Africa: voltage regulation. Rural networks experience the majority of voltage-regulation problems in South Africa. The networks are long sub-transmission and reticulation networks and are modelled by two generic networks, namely a radial network and a two-source ring network. The equations describing voltage regulation for the generic networks are developed and implemented in PSAT, a software analysis tool. The voltage regulation for two case studies that represent the two generic networks are analysed. Four generic network devices are defined and various control methods for these devices are developed to solve the network problem. The aim of PSAT is to help the network planner to quickly evaluate a number of possible solutions and to choose the best solution for further studies. This is demonstrated with the aid of the case studies. PSAT provides a sturdy platform on which future developments, such as stability analyses, can be built. However, PSAT can already function as a stand-alone analysis tool to solve voltage regulation as a network problem.
AFRIKAANSE OPSOMMING: Onlangse vooruitgang in halfgeleier ontwikkeling het 'n groot aantal netwerktoestelle op die mark geplaas. Hierdie toestelle kan netwerk probleme doeltreffender en meer ekonomies oplos as ooit vantevore. 'n Behoefte aan 'n pakket wat netwerkbeplanners in staat stelom die netwerktoestelle te analiseer, is geïdentifiseer. So 'n pakket sal hulle help om die vernaamste netwerkprobleem in Suid-Afrika, nl. spanningsregulasie, op te los. Die oorgrote meerderheid spanningsregulasie probleme word op die platteland ondervind. Plattelandse netwerke word gekenmerk deur lang sub-transmissie en retikulasie netwerke. Hierdie netwerke word met behulp van twee generiese netwerke gemodelleer. 'n Radiale netwerk en 'n dubbelbron ringnetwerk word aangewend om enige plattelandse netwerk te analiseer. Vergelykings is vir spanningsanalise ontwikkel en in PSAT, 'n analitiese sagteware pakket, geïmplementeer. Twee gevallestudies is gedoen om die twee netwerke afsonderlik voor te stel en die vergelykings van PSAT te evalueer. Alle netwerktoestelle is in een van vier generiese kategorieë geklassifiseer. Modelle is vir elk van die kategorieë ontwikkel vtr spanningsregulasie analise. Die doel van PSAT is om die netwerk beplanner te help om vinnig en effektief soveel moontlik opsies te ondersoek as oplossings vir 'n spesifieke netwerk probleem. PSAT is reeds 'n alleenstaande pakket wat in die toekoms uitgebrei sal word om na die analise van stabilitietsprobleme te kyk.
Gunn, Greg (Greg Marshall) 1970. "Web technologies for technology transfer and organizational learning in a production environment". Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46174.
Texto completoIncludes bibliographical references (leaves 71-72).
by Greg Gunn.
M.S.
Pelyhe, Daniel y Tuna Memisoglu. "How can Electric Vehiclesbecome the Dominant Design?" Thesis, KTH, Entreprenörskap och Innovation, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-42269.
Texto completoБашлак, Ірина Анатоліївна, Ирина Анатольевна Башлак, Iryna Anatoliivna Bashlak y S. V. Chernobuk. "Military applications of electronic technologies". Thesis, Вид-во СумДУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/16860.
Texto completoButchard, Dorothy Keziah. "Electric amateurs : literary encounters with computing technologies 1987-2001". Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/10584.
Texto completoRoberts, Ivy. "Distant Electric Vision: Cultural Representations Of Television From “Edison’s Telephonoscope” To The Electronic Screen". VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4720.
Texto completoVacek, Petr. "Modifikace vrstev deponovaných technologiemi HVOF a cold spray pomocí technologie elektronového paprsku". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254211.
Texto completoMou, Xiaolin. "Wireless power transfer technology for electric vehicle charging". Thesis, Durham University, 2017. http://etheses.dur.ac.uk/12416/.
Texto completoSENA, FABRICIO ROBERTO. "EVOLUTION OF MOBILE PHONES TECHNOLOGY AND THE IMPACT ON THE WASTE OF ELECTRICAL AND ELECTRONIC EQUIPMENT". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=22231@1.
Texto completoIn the last century, through new production processes, the industry has increased the variety and availability of products offered to the population, providing better quality of life. This has happened because the inception of series production has offered a greater supply of consumer goods, including the Electrical and Electronic Equipment (EEE). The evolution of electronics technology has provided, and will continue to provide a better quality of life than the one we used to have. However, the technology of these products is continuously evolving, and this brings advantages and disadvantages.
Thomas, Vincent. "Système multi-capteurs et traitement des signaux associé pour l'imagerie par courants de Foucault de pièces aéronautiques". Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2010. http://tel.archives-ouvertes.fr/tel-00561478.
Texto completoZhang, Rui. "Impact of emerging technologies on the cell disruption and fractionation of microalgal biomass". Thesis, Compiègne, 2020. http://www.theses.fr/2020COMP2548.
Texto completoThis research work focuses on extraction and fractionation of bio-molecules from microalgae using physical treatments: pulsed electric fields (PEF), high voltage electrical discharges (HVED) and ultrasonication (US) techniques. In this study, three microalgae species Nannochloropsis sp., Phaeodactylum tricornutum (P. tricornutum) and Parachlorella kessleri (P. kessleri) were investigated. These species have different cell shapes, structure and intracellular contents. The effects of tested techniques on extraction of bio-molecules have been highlighted in a quantitative and qualitative analysis by evaluating the ionic components, carbohydrates, proteins, pigments and lipids. A comparative study of physical treatments (PEF, HVED and US) at the equivalent energy input for release of intracellular bio-molecules from three microalgal species allowed us to better understand the different disintegration mechanisms. For each microalga at the same energy consumption, the HVED treatment proved to be the most efficient for extraction of carbohydrates, while the US treatment for extraction of proteins and pigments. In general, the smallest efficiency was observed for the PEF treatment. However, the highest selectivity towards carbohydrates can be obtained using the mild PEF or HVED technique. The preliminary physical treatments (PEF, HVED or US) of more concentrated suspensions followed by high pressure homogenization (HPH) of diluted suspensions allowed improving the extraction efficiency and decreasing the total energy consumption. The physical pretreatments permit to reduce the mechanical pressure of the HPH and number of passes, to reach the same extraction yield. For the maximum valorisation of microalgal biomass, extraction procedure assisted by HVED treatment (40 kV/cm, 1-8 ms) followed by aqueous and non-aqueous extraction steps seems to be useful for selective extraction and fractionation of different bio-molecules from microalgae. The significant effects of HVED pre-treatment on organic solvent extraction of pigments (chlorophylls, carotenoids) and lipids were also observed
Vardalas, John N. "Moving up the learning curve, the digital electronic revolution in Canada, 1945-70". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21032.pdf.
Texto completoGoel, Vishu. "Novel coating technologies for electrical steels". Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/93813/.
Texto completoJoshi, Yakshit y Deepak Dinesh. "Standardizing Electric Road : Factors affecting the Business Model for Electric Road Systems". Thesis, Högskolan i Halmstad, Akademin för företagande, innovation och hållbarhet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-43675.
Texto completoLadendorff, Marlene Z. "The effect of North American Electric Reliability Corporation critical infrastructure protection standards on bulk electric system reliability". Thesis, Capella University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3640275.
Texto completoCompliance with regulations may not automatically produce a secure infrastructure. In the United States energy critical infrastructure sector, compliance with regulatory cyber security standards may not necessarily mean that an entity would be able to withstand a cyber attack on critical assets potentially supporting the reliability of the Bulk Electric System (BES). This qualitative exploratory inquiry study researched technical opinions of cyber security professionals in the energy critical infrastructure industry regarding the effect of the North American Electric Reliability Corporation (NERC) Critical Infrastructure Protection (CIP) standards on the reliability of the BES. NERC entities had been required to be compliant with the standards for several years at the time this study was undertaken. There has been speculation regarding the efficacy of the standards to impact the reliability of the BES. However, there was a lack of scholarly or professional literature confirming assumptions concerning BES reliability. In this study, data was gathered through interviews with individuals who were CIP implementation experts. The purpose of this study was to identify a theme or themes regarding changes in the reliability of the BES as a result of the NERC CIP standards implementation. Interview data from the study generated 9 themes including a theme for the research question indicating that reliability of the BES had improved as a result of the implementation and enforcement of the CIP standards. Some of the more prominent themes included NERC fines having influenced entities in the implementation of the standards; entities have been more concerned about CIP compliance than securing their equipment; and entities have removed equipment from their facilities in order to avoid the requirements, and the associated expense, the standards would demand.
Qin, Helen. "Powertrain technology and cost assessment of battery electric vehicles". Thesis, UOIT, 2010. http://hdl.handle.net/10155/86.
Texto completoJeon, Sang Yeob. "Hybrid & electric vehicle technology and its market feasibility". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59252.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (p. 79-83).
In this thesis, Hybrid Electric Vehicles (HEV), Plug-In Hybrid Electric Vehicle (PHEV) and Electric Vehicle (EV) technology and their sales forecasts are discussed. First, the current limitations and the future potential of vehicle technology for HEVs, PHEVs, and EVs are investigated. Second, factors that have historically impacted vehicle sales in the United States are examined. The examination focuses on the effect of rising gasoline prices on the U.S. vehicle market for the periods which include three significant events involving gasoline prices: the Iran and Iraq war in 1979, Hurricane Katrina in 2005, and the recession of 2008. Finally, many parts of this thesis deal with sales forecasts of HEVs, PHEVs, and EVs up to 2030. While previous research used the unmodified Bass diffusion model or Generalized Bass model in order to examine the adoption rate of EVs, through using Norton-Bass Model and inserting Generalized Bass Model into Norton-Bass Model, this study seeks to overcome the limitation of Bass diffusion model, which has a fixed saturation level in order to generate more accurate projections.
by Sang Yeob Jeon.
S.M.in System Design and Management
Sanz, Desco Raul. "Life Length and Stress Tests of Electric Machines for Electric Vehicles". Thesis, KTH, Skolan för kemivetenskap (CHE), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214554.
Texto completo黃志明 y Chi-ming Simon Wong. "Electronic mail: technology, applications andinfrastructure". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B3126511X.
Texto completoO'Neill, Peter R. "Enhancing electronic assistive technology prescription". Thesis, Sheffield Hallam University, 2006. http://shura.shu.ac.uk/20147/.
Texto completoNavarret, Benoît. "Caractériser la guitare électrique : définitions, organologie et analyse de données verbales". Paris 8, 2013. http://octaviana.fr/document/180886118#?c=0&m=0&s=0&cv=0.
Texto completoThis thesis is a multidisciplinary approach which characterizes the electric guitar in complementary perspectives to qualify it and give it the status of subject of study in a musicological framework for renewed methods. The first part is a presentation of the essential tools that make up the environment of the instrument and the musician. It deals with the electrification of the guitar, its hardware configuration, the relationship of the musician to the instrument and the influence of studio audio techniques in music production. The second part is an organological study of the most famous models of solidbody electric guitars (Fender Telecaster, Stratocaster and Gibson Les Paul) and some alternatives. This approach shows that the electric guitar remains in extremely varied forms today despite widespread archetypes that have become a benchmark worldwide. The third part is devoted to the speech of guitarists who gave their own definition of the electric guitar under unusual perceptual studies. Verbal data were collected and analyzed. The results presented relate to the representations of brands and models, and the study of the vocabulary of this community of musicians. All of this work is part of an interdisciplinary collaboration between research teams in musicology, psychology/linguistics and mechanics
Dailey, R. Gordon Jr. "An analysis of renewable energy technologies for electric utilities in Georgia". Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/28922.
Texto completoSteinhausen, Natasha. "Applications of the electric potential sensor for healthcare and assistive technologies". Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/48596/.
Texto completoBalani, Spandana. "Smart Grid Technologies for Efficiency Improvement of Integrated Industrial Electric System". ScholarWorks@UNO, 2011. http://scholarworks.uno.edu/td/115.
Texto completoZhang, Fan. "Electric and electrochemical responses of adherent cells : application of microfabrication technologies". Paris 6, 2011. http://www.theses.fr/2011PA066194.
Texto completoStenbro, Martine. "A Survey of Modern Electronic Voting Technologies". Thesis, Norwegian University of Science and Technology, Department of Telematics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10906.
Texto completo