Tesi sul tema "UPSC"
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Sjödin, Andreas. "Populus transcriptomics : from noise to biology". Doctoral thesis, Umeå universitet, Fysiologisk botanik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1423.
Testo completoDNA microarray analysis today is not just generation of high-throughput data, much more attention is paid to the subsequent efficient handling of the generated information. In this thesis, a pipeline to generate, store and analyse Populus transcriptional data is presented A public Populus microarray database - UPSC--BASE - was developed to gather and store transcriptomic data. In addition, several tools were provided to facilitate microarray analysis without requirements for expert-level knowledge. The aim has been to streamline the workflow from raw data through to biological interpretation. Differentiating noise from valuable biological information is one of the challenges in DNA microarray analysis. Studying gene regulation in free-growing aspen trees represents a complex analysis scenario as the trees are exposed to, and interacting with, the environment to a much higher extent than under highly controlled conditions in the greenhouse. This work shows that, by using multivariate statistics and experimental planning, it is possible to follow and compare gene expression in leaves from multiple growing seasons, and draw valuable conclusions about gene expression from field-grown samples. The biological information in UPSC-BASE is intended to be a valuable transcriptomic resource also for the wider plant community. The database provides information from almost a hundred different experiments, spanning different developmental stages, tissue types, abiotic and biotic stresses and mutants. The information can potentially be used for both cross-experiment analysis and for comparisons against other plants, such as Arabidopsis or rice. As a demonstration of this, microarray experiments performed on Populus leaves were merged and genes preferentially expressed in leaves were organised in to regulons of co-regulated genes. Those regulons were used to define genes of importance in leaf development in Populus. Taken together, the work presented in this thesis provides tools and knowledge for large-scale transcriptional studies and the stored gene expression information has been proven to be a valuable information resource for in-depth studies about gene regulation.
Pereira, Dante Victor Shimoda. "Estudo teÃrico: UPQC-UPS monofÃsica com possibilidade de filtragem ativa utilizando a teoria p-q". Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10363.
Testo completoEste trabalho propÃe o projeto de uma UPQC-UPS monofÃsica de 1,4 kVA e alta eficiÃncia com capacidade de filtragem ativa atravÃs de dois conversores conectados em sÃrie e em paralelo. Com esta topologia, à possÃvel obter uma elevada eficiÃncia e combinar as vantagens dos tipos de UPS on-line e line-interactive, melhorando, ao mesmo tempo, a qualidade de energia da rede e protegendo as cargas de harmÃnicos e oscilaÃÃes de tensÃo. As referÃncias de compensaÃÃo dos conversores sÃrie e paralelo sÃo gerados utilizando a Teoria p-q, que propÃem um conjunto de definiÃÃes para lidar com sistemas elÃtricos sob condiÃÃes nÃo-senoidais. De acordo com os resultados de simulaÃÃo, foi comprovado que, quando os conversores sÃrie e paralelo estÃo em funcionamento, a corrente de entrada do sistema possui baixa taxa de distorÃÃo harmÃnica (TDHi) e o sistema apresenta um fator de potÃncia elevado, mesmo para cargas nÃo-lineares. AlÃm disso, à fornecida à carga uma tensÃo senoidal com baixa taxa de distorÃÃo harmÃnica (TDHv) e com valor eficaz fixo mesmo com oscilaÃÃes na tensÃo de entrada, tanto no modo rede como no modo bateria. SimulaÃÃes foram desenvolvidas no software PSCAD/EMTDC.
This work proposes the design of an UPQC-UPS high efficiency single phase 1.4 kVA with active filter capabilities throughout the parallel and series converters. With this topology, it is possible to obtain high efficiency and combine the advantages of both on-line and line interactive UPS systems improving, at the same time, the grid energy quality. The series/parallel compensation references were generated using the p-q Theory which defines a joint of power definitions to deal with electric systems under non-sinusoidal conditions. According to the simulation results, it was shown that the system input current has a low total harmonic distortion (THDi) and it presents high power factor. Also, the load voltage has a sinusoidal shape with low total harmonic distortion (THDv), both in its grid and battery mode operation. Such simulations were developed in the software PSCAD/EMTDC.
Pereira, Dante Victor Shimoda. "Estudo teórico: UPQC-UPS monofásica com possibilidade de filtragem ativa utilizando a teoria p-q". reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/5820.
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This work proposes the design of an UPQC-UPS high efficiency single phase 1.4 kVA with active filter capabilities throughout the parallel and series converters. With this topology, it is possible to obtain high efficiency and combine the advantages of both on-line and line interactive UPS systems improving, at the same time, the grid energy quality. The series/parallel compensation references were generated using the p-q Theory which defines a joint of power definitions to deal with electric systems under non-sinusoidal conditions. According to the simulation results, it was shown that the system input current has a low total harmonic distortion (THDi) and it presents high power factor. Also, the load voltage has a sinusoidal shape with low total harmonic distortion (THDv), both in its grid and battery mode operation. Such simulations were developed in the software PSCAD/EMTDC.
Este trabalho propõe o projeto de uma UPQC-UPS monofásica de 1,4 kVA e alta eficiência com capacidade de filtragem ativa através de dois conversores conectados em série e em paralelo. Com esta topologia, é possível obter uma elevada eficiência e combinar as vantagens dos tipos de UPS on-line e line-interactive, melhorando, ao mesmo tempo, a qualidade de energia da rede e protegendo as cargas de harmônicos e oscilações de tensão. As referências de compensação dos conversores série e paralelo são gerados utilizando a Teoria p-q, que propõem um conjunto de definições para lidar com sistemas elétricos sob condições não-senoidais. De acordo com os resultados de simulação, foi comprovado que, quando os conversores série e paralelo estão em funcionamento, a corrente de entrada do sistema possui baixa taxa de distorção harmônica (TDHi) e o sistema apresenta um fator de potência elevado, mesmo para cargas não-lineares. Além disso, é fornecida à carga uma tensão senoidal com baixa taxa de distorção harmônica (TDHv) e com valor eficaz fixo mesmo com oscilações na tensão de entrada, tanto no modo rede como no modo bateria. Simulações foram desenvolvidas no software PSCAD/EMTDC.
Modesto, Rodrigo Augusto. "Estudo, projeto e implementação de sistemas UPQC/UPS trifásicos aplicados no condicionamento ativo de energia elétrica". Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-07042015-111551/.
Testo completoThis work presents the study, analysis and implementation of three topologies of active power conditioners, which are used to improve the power quality in three-phase four-wire systems. These power quality conditioner can work as unified power quality conditioner (UPQC), as well as an uninterruptible power supply (UPS) system allowing: (i) suppression of load harmonic currents; (ii) compensation of load reactive power; (iii) load unbalances compensation; (iv) utility voltage unbalances compensation; (v) utility voltage harmonics suppression; (vi) regulation of the output voltages (load voltages); and (vii) uninterruptible power for critical loads when working as UPS system. Among the three topologies of UPQC/UPS studied, one of them is proposed in this work in order to reduce the DC-bus voltage. Besides, all the topologies are comprised of two PWM converters, where a dual control strategy is adopted. The first converter, which is placed in parallel with the load, operates as a sinusoidal voltage source, while the second, which is placed in series between the utility grid and the load, is controlled to operate as a sinusoidal current source. Both the voltage and current controllers are implemented into the synchronous rotating reference frame (dq0-axes). In addition, the series and parallel converters use the three-dimensional space vector modulation (3-D-SVM) technique. The experimental tests are presented to validate the theoretical development and to verify the effective static and dynamic performance of the proposed active power conditioners, operating as UPQC and UPS.
Galván, Oré Liliana. "Perfil de liderazgo UPC: modelo educativo de la UPC". Universidad Peruana de Ciencias Aplicadas - UPC, 2007. http://hdl.handle.net/10757/272374.
Testo completoEurtivong, Chalasai. "Time-dependent phenomena in uPVC". Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47051.
Testo completoLima, Maria Aparecida Fernandes de. "Desenvolvimento de colunas para UPLC". [s.n.], 1988. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250693.
Testo completoTese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica
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Doutorado
Aplicadas, Universidad Peruana de Ciencias. "Guía informativa UPC". Universidad Peruana de Ciencias Aplciadas, 2018. http://hdl.handle.net/10757/625819.
Testo completoMrázek, Petr. "Záložní zdroj (UPS)". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221364.
Testo completoSilva, Marco Aurélio Ferreira da. "Sistema de Unidades Padrão Escolar - UPEC". reponame:Repositório Institucional da UFOP, 1997. http://www.repositorio.ufop.br/handle/123456789/6239.
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O tema abordado, SISTEMA DE UNIDADES PADRÃO ESCOLAR - UPEC, possui como objetivo a criação de unidades prediais escolares, projetadas para apoiar o ensino público primário e secundário. A principal característica onde se apoia todo o sistema, é sua flexibilidade. As unidades escolares são viabilizadas e construídas, a partir de um estudo de dimensionamento e classificação em função da demanda local, à época de sua implantação. Daí serem superadas em capacidade, em alguns casos, em curto espaço de tempo. O Sistema proposto permite o crescimento das edificações, habilitando-as para a ampliação do número de usuários existente. A transformação das edificações através da ampliação de suas instalações físicas faz-se de forma natural, sem prejuízo do aspecto formal e sem interromper as atividades escolares durante o período letivo, uma vez que não interfere de forma direta nos espaços existentes. Concebido no sistema estrutural metálico, dado à sua afinidade com os objetivos de nossa proposta, contempla principalmente os seguintes itens: • Flexibilidade • Baixo custo de implantação • Rapidez na execução da obra • Facilidade de transporte • Desmonte e locomoção com reaproveitamento • Possibilidade de industrialização. • Adaptabilidade ao terreno As unidades escolares, denominadas UPECs, classificam-se segundo o número de salas de aula, que pode variar de 4 a 16. Os crescimentos foram previstos caso a caso de acordo com a categoria de cada edificação. A viabilidade do sistema construtivo metálico foi analisada pela USIMINAS, que se posicionou de forma favorável ao projeto apresentado. ______________________________________________________________________________________________
ABSTRACT: This work aims at the designing of schools, proposed to the primary and secondary degree, sponsored by the government. The main characteristic of this system is its flexibility. The schools are designed and built according to previous researchs concerning its dimensions and classification according to its local conditions at time of implantation.In this case, they are likely to become surpassed in short time. The system allows the expansion of the building according to its new requirements, fulfilling the needs of the different categories concerning the number of classrooms, and is conceived in steel structures, so that the exchange of categories is achieved in a natural way, keeping the formal aspects and without interference in the school activities.The following itens are considered: • Flexibility • Low costs of implantation • Fast erection of building • Easy transportation • Easy dismounting and new use • Industrialization possibilities • Adaptability to the site The school units are classified according the number of classrooms with can vary from 4 (four) to 16 (sixteen). The expansions where studieds according to each categorie of building. The feasibility of the constructive system was analized and aproved by USIMINAS.
Löfqvist, Malin, e Sara Hultman. "Ups! : Produktutvecklingen och utvärderingen av den digitala applikationen Ups!The product development and the evaluation of the digital application Ups!" Thesis, Högskolan i Gävle, Utbildningsvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26036.
Testo completoSyftet med denna studie var att utveckla en digital applikation, samt utvärdera applikationen om den stödjer flerspråkighet i förskolan. Det har använts två metoder i studien. Den första är en forskning och utvecklingsmetod (R & D) för att forma och utveckla produkten. För att utveckla produkten vidare användes metoden intervjustudie, för att undersöka förskollärares upplevelser av den utvecklade applikationen samt om den stödjer flerspråkighet i förskolan. Intervjuerna bearbetades och kategoriserades. Studien påvisade att den utvecklade applikationen kan stödja flerspråkighet i förskolan och har potential att utvecklas vidare.
Gustafsson, Johan, e Adam Östling. "Kulturens påverkan på marknadsföring - en fallstudie av UPS Dubai och UPS Sverige". Thesis, Halmstad University, School of Business and Engineering (SET), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2836.
Testo completoI vår allt mer globaliserade värld, som kännetecknas av ökad världshandel, integrerade ekonomier och landsgränser som suddas ut, krävs en allt större kunskap om hur länder skiljer sig åt. En marknad som på senare tid, då främst under 2000-talet, varit ledande när det gäller globalisering, teknologisk utveckling och inte minst inom byggsektorn är Dubai, Förenade Arabemiraten. Dubai har satsat enorma summor i turism och kommersialism, det i kombination med ett förmånligt skattesystem har gjort att många företag valt att söka sig till Dubai. Många av dem är tjänsteföretag och det går i linje med trenden att vi går mot en tjänsteekonomi. Denna bakgrund har lett uppsatsens författare till problemformuleringen: Hur påverkar kulturskillnader ett internationellt tjänsteföretags utformande av sin marknadsföring? Med utgångspunkt i marknadsförings- och kulturteorier är uppsatsens övergripande syfte att undersöka om det existerar skillnader och likheter i ett internationellt tjänsteföretags tillvägagångssätt att arbeta med marknadsföring i Sverige och i Dubai. Mer specifikt ska studien visa om det går att hänföra dessa likheter och skillnader till de kulturella differenser som råder länderna emellan. För att ge en ökad förståelse för motiv och orsaker till de strategiska val som respondenterna gör, kommer också en övergripande bild av marknadsföring i allmänhet i de respektive länderna att presenteras. Uppsatsen grundar sig på en kvalitativ ansats och intervjuer med tre anställda på UPS Dubai och två anställda på UPS Sverige. Slutsatserna av studien är att kultur har påverkan på utformandet av marknadsföringen. Faktorer som påverkar är bland annat hög- och lågkontext, språk, relationer, religion och osäkerhetsundvikande. Studien visar också marknadsföringsverktyg som påverkas, bland annat PR, annonsering, direktmarknadsföring och centralt producerad reklam.
Olsson, Fredrik. "Konstruktion av UPS-modul". Thesis, Linköping University, Department of Electrical Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1397.
Testo completoThis master thesis describes the development of an UPS module. UPS is an acronym for Uninterruptable Power Supply. The UPS module has been developed at the company AerotechTelub AB. The UPS module delivers the necessary voltage and current in case of a power interrupt. If a power interrupt occur, the computer system has one to three minutes available to store data and shut down correctly.
The UPS module consists of two parallel systems. Every system is built out of four parts. Part one consists of batteries and safety circuits, part two charges the batteries, partthree is a control unit, and part four delivers the voltage and current. The delivered voltage is 5 V and the current is 4 A.
Tests and verifications showed that the UPS module could supply a computer system with power for about one minute. The tests have been performed in a lab at AerotechTelub AB.
The UPS module is supposed to be mounted in a cassette. The cassette is then inserted in the computer system through a hole in the chassis. Thereby an opening of the computer system is avoided when the module is connected.
Rönkkö, Isabelle, e Malin Sefton. "Hårdvarustart-ups i uppskalningsprocessen". Thesis, KTH, Hållbar produktionsutveckling (ML), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254546.
Testo completoDuring recent years Sweden has seen a significant increase in the number of newly registered companies. This trend is also evident in the manufacturing industry. Concurrently, a significant part of these manufacturing start-ups file for bankruptcy within three years. Due to the challenges the ramp-up process, completing this phase is sometimes compared to crossing “the Valley of Death”. A common strategy for the ramp-up process is to use a contract manufacturer for the company’s production. These contract manufacturers are often located abroad and this results in consequences for the company, as well as lost production opportunities for Sweden. This study aims at identifying the main reasons why companies decide to locate their production abroad and to examine the current situation on the Swedish start-up scene. Furthermore, the purpose of this study to identify the challenges that start-ups face inrelation to ramping up their hardware production. An examination of how start-ups can tackle these challenges and which support they need in order to facilitate the ramp-upprocesses will be made. The method used in this study has a qualitative approach where several in-depth interviews has been carried out in order to collect data. Both start-ups and experts with documented experience in the hardware production area has been interviewed. The result of this study shows that a central challenge in the ramp-up process is a lack of production-related knowledge. This deficit is evident in numerous of the additional challenges that has been identified. These challenges are categorised as finance, marketan alysis and pilot study, competence within production and building a team, prototype development, understanding of the production processes and supplier and manufacturers. These challenges were handled with some variation between the different companies. The study provides a number of solutions and suggestions of actions that can facilitate the rampup process for hardware start-ups. The development of a support function with the purpose to pass on knowledge and work as a sounding board in production-related questions will help start-ups tackle many of the identified challenges. Furthermore, engineering students may provide support in the development and later become a source for recruitment to the company. Finally, a service that clarifies available capacity in existing manufacturing and supplier resources would shorten the gap between the manufacturers or the suppliers andthe start-up.
Eriksson, Emma. "Pesticide Screening Method with UPLC-MS/MS". Thesis, Umeå universitet, Kemiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105529.
Testo completoConrad, Ulrich. "The calibration process in uPVC profile extrusion". Thesis, Swansea University, 2003. https://cronfa.swan.ac.uk/Record/cronfa42910.
Testo completoAl-Mawsawi, Sayed Ali Abbas Ali. "Simulation and implementation of a PWM based UPFC". Thesis, Imperial College London, 1995. http://hdl.handle.net/10044/1/8679.
Testo completoWu, Xiaohe. "OPTIMAL UPFC CONTROL AND OPERATIONS FOR POWER SYSTEMS". Doctoral diss., University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4462.
Testo completoPh.D.
Department of Electrical and Computer Engineering
Engineering and Computer Science
Electrical and Computer Engineering
PEREIRA, MARIA APARECIDA. "STUDY OF THE UPFC APPLIED TO LONG LINES". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1997. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9045@1.
Testo completoStudy of the UPCF applied to long lines O avanço da eletrônica de potência e de sua aplicação em Sistemas Elétricos de Potência proporcionaram uma nova tecnologia denominada FACTS - Flexilble AC Transmission Systems . Sob o conceito FACTS, encontram-se encontram-se equipamentos para a compensação da potência reativa, regulação de tensão e controle estático e dinâmico do fluxo de potência ativa em linhas de transmissão. Os equipamentos FACTS atualmente pesquisados vêm apresentando novas perspectivas de controle para os sistemas de potência até então não verificadas com o uso de compensadores convencionais. Dentre os equipamentos FACTS pesquisados está o Compensador Generalizado. O Compensador Generalizado oferece a possibilidade de um controle simultâneo e independente do fluxo de Potência ativa e das tensões nas barras do sistema. O objetivo principal deste trabalho é analisar o funcionamento do Compressor Generalizado em regime permanente aplicado a linhas longas. É avaliado sua situação operando numa linha de 2400 km. Dois casos extremos foram abordados: compensação sob carga nominal e compensação sob rejeição de carga. Os resultados obtidos com o Compensador Generalizado foram comparados com os resultados prévios obtidos através de uma compensação realizada com o uso de capacitores série e reatores em derivação. Desta forma, foram verificadas as vantagens oferecidas pelo Compensador Generalizado em relação a outros equipamentos e as possibilidades oferecidas aos sistema de transmissão face às novas alternativas de controle de fluxo de potência proporcionadas.
The improvement of power electronics and its application in Power Systems introduced a new technology denominated FACTS - Flexible AC Transmission Systems. The FACTS concept includes equipment for reactive compensation, voltage regulation and static and dynamic control of the active power flow in transmission lines. The FACTS equipment under recent researches is showing new perspectives for power systems controlling, which were not achieved with conventional compensators. Among the researched FACTS equipment, there is the Unified Power Flow Controller. The UPFC provides a simultaneous and independent control of the active power flow and the voltages in the system. The main objective of this study is to analyze the steady state operation of the UPFC applied to long lines, specially the case fo a 2400 km line. Two extreme cases are discussed: compensation under rated load and compensation under load rejection. The obtained results with the UPFC are compared with previous results from a compensation performed with series capacitors and shunt reactors. Thus, this study presents the advantages of the UPFC in regard of other equipment and the possibilities offered to the transmission systems due to the new provided alternatives for power flow controlling.
Silveira, Jarbas Aryel Nunes da. "Gereciamento SNMP com autenticaÃÃo remota: aplicaÃÃo em UPSs". Universidade Federal do CearÃ, 2006. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2068.
Testo completoDevido ao crescente uso de computadores e a forte dependÃncia dos mesmos em vÃrias aplicaÃÃes, as UPS (Uninterruptible Power Supplies) vÃm adquirindo cada vez mais importÃncia. Estes dispositivos encontram-se muitas vezes dentro de um contexto de um sistema distribuÃdo, o que fortalece a necessidade de gerenciamento dos mesmos. Devido à grande utilizaÃÃo das UPS em computadores, e devido ao fato destes, por sua vez, estarem inseridos em um ambiente de redes TCP/IP, torna-se bastante viÃvel a idÃia de se usar um sistema de gerenciamento que seja compatÃvel com esse ambiente, e que faÃa uso de suas potencialidades. No presente trabalho à apresentado a implementaÃÃo de um sistema de gerenciamento SNMP (Simple Network Management Protocol) para UPS que possibilita o gerenciamento de um nÃmero arbitrÃrio de UPS, e que permite a autenticaÃÃo remota para gerentes, facilitando o uso para um maior nÃmero de dispositivos. Detalha-se a implementaÃÃo do sistema bem como os testes realizados. No final do trabalho à apresentada uma proposta para trabalhos futuros na Ãrea.
The reliability of a computer system is based not only on the computer itself, but also on its related power system. For that reason, more and more critical systems are counting on UPSs (Uninterruptible Power Supplies) to account for a continuous supply of power. Although the task of managing an UPS for a standalone system be quite straightforward, when it comes to computer distributed systems that task has to follow an equally distributed approach. Depending on the strategy used to manage that distributed UPS network, this task may be very complex. However, keeping in mind that most computer systems in a distributed architecture make use of TCP/IP to be logically connected, one could profit from the facilities provided by this protocol and design a management strategy that makes use of it. In fact, TCP/IP is not the only suite of protocols used to interconnect computer systems. SNMP (Single Network Management Protocol) is also frequently used as a way of managing (hardware and/or software) devices associated with computers. This dissertation proposes and implements a way of managing distributed UPSs by using SNMP, taking advantage of all the facilities furnished by the protocol. This works describes how the use of SNMP makes it possible to manage an arbitrarily number of UPSs remotely. This makes the design of UPS management systems a relatively easy task, and contributes to introduce a high degree of flexibility on the task of managing distributed UPSs. Finally, it is described how the system and tests were implemented as well as proposals for future work is presented.
Silveira, Jarbas Aryel Nunes da. "Gereciamento SNMP com autenticação remota: aplicação em UPSs". reponame:Repositório Institucional da UFC, 2006. http://www.repositorio.ufc.br/handle/riufc/16141.
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The reliability of a computer system is based not only on the computer itself, but also on its related power system. For that reason, more and more critical systems are counting on UPSs (Uninterruptible Power Supplies) to account for a continuous supply of power. Although the task of managing an UPS for a standalone system be quite straightforward, when it comes to computer distributed systems that task has to follow an equally distributed approach. Depending on the strategy used to manage that distributed UPS network, this task may be very complex. However, keeping in mind that most computer systems in a distributed architecture make use of TCP/IP to be logically connected, one could profit from the facilities provided by this protocol and design a management strategy that makes use of it. In fact, TCP/IP is not the only suite of protocols used to interconnect computer systems. SNMP (Single Network Management Protocol) is also frequently used as a way of managing (hardware and/or software) devices associated with computers. This dissertation proposes and implements a way of managing distributed UPSs by using SNMP, taking advantage of all the facilities furnished by the protocol. This works describes how the use of SNMP makes it possible to manage an arbitrarily number of UPSs remotely. This makes the design of UPS management systems a relatively easy task, and contributes to introduce a high degree of flexibility on the task of managing distributed UPSs. Finally, it is described how the system and tests were implemented as well as proposals for future work is presented.
Devido ao crescente uso de computadores e a forte dependência dos mesmos em várias aplicações, as UPS (Uninterruptible Power Supplies) vêm adquirindo cada vez mais importância. Estes dispositivos encontram-se muitas vezes dentro de um contexto de um sistema distribuído, o que fortalece a necessidade de gerenciamento dos mesmos. Devido à grande utilização das UPS em computadores, e devido ao fato destes, por sua vez, estarem inseridos em um ambiente de redes TCP/IP, torna-se bastante viável a idéia de se usar um sistema de gerenciamento que seja compatível com esse ambiente, e que faça uso de suas potencialidades. No presente trabalho é apresentado a implementação de um sistema de gerenciamento SNMP (Simple Network Management Protocol) para UPS que possibilita o gerenciamento de um número arbitrário de UPS, e que permite a autenticação remota para gerentes, facilitando o uso para um maior número de dispositivos. Detalha-se a implementação do sistema bem como os testes realizados. No final do trabalho é apresentada uma proposta para trabalhos futuros na área.
Schilder, Dirk. "Smart Capital for Start-ups". Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2009. http://nbn-resolving.de/urn:nbn:de:bsz:105-0846717.
Testo completoWatson, Rachel. "La microenseñanza en la UPC". Universidad Peruana de Ciencias Aplicadas (UPC), 2015. http://hdl.handle.net/10757/550127.
Testo completoEl trabajo presenta una reflexión sobre el uso de la técnica de la microenseñanza en la formación de docentes. La experiencia de microenseñanza en la UPC se desarrolla como parte del proceso de inducción que el Departamento de Calidad Educativa brinda a los profesores nuevos. Se presentan los resultados del análisis de las Habilidades Docentes en las Microenseñanzas realizadas en el ciclo 2006-02 y se discute sobre las posibilidades de capacitación que brinda esta técnica, ayudando a los docentes nuevos a reforzar sus habilidades pedagógicas y alinearse al Modelo Educativo de la UPC. A su vez, otorga retroalimentación y permite brindar sugerencias para que el profesor pueda seguir formándose como pedagogo
Valle, Camila, Gonzalo Castillo e Eduardo Flores. "Conversatorios Deportivos UPC: Alto Rendimiento". Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/657276.
Testo completoMachado, Daniela Tavares. "Exit strategies of start-ups". Master's thesis, Instituto Superior de Economia e Gestão, 2014. http://hdl.handle.net/10400.5/7459.
Testo completoO objectivo deste estudo e inferir sobre os factores que conduzem a saida do mercado pelas start-ups, da perspectiva do individuo e da empresa. A literatura anterior tem-se apenas mais recentemente focado na saida como uma parte importante do ciclo economico e financeiro. No entanto, ha ainda um corpo estreito do pesquisa aplicado a pequenas empresas, ao contexto que integre fundador e start-up e a diferenciacao entre saida e morte ou falencia empresarial. Neste sentido, conduzimos uma analise multivariada para os diferentes acontecimentos: continuacao, liquidacao e venda, distinguindo entre saida voluntaria ou involuntaria de acordo com a performance da start-up, medida atraves do Altman s Z-Score. Inferimos sobre a influencia das caracteristicas do fundador e start-up no tipo de saida, usando dados financeiros de empresas e fundadores, que contem informacao unica e detalhada de 2004 a 2009. Os resultados obtidos indicam que a dimensao da start-up e equipa de fundadores, educacao do fundador, idade e genero masculino afectam positivamente a probabilidade de continuacao e venda e negativamente a de liquidacao. Os mais jovens fundadores tem mais probabilidade de abandonarem os seus empreendimentos enquanto os mais velho tem menores probabilidade de liquidacao. Consistente com literatura antecedente, as start-ups de maior tamanho e com fundadores com maior nivel de educacao tem menos probabilidade de se liquidarem.
The aim of this study is to infer the factors that lead to start-up exit from the individual and firm perspective. Previous literature has only more recently focused on exit as an important part of the business and economic cycle. However, there is still a thin body of research applied to small companies, a framework of both founder and start-up exit and the differentiation between venture exit and death/bankruptcy. Regarding this, we conduct a multinomial analysis for different outcomes: continuation, liquidation and sale and distinguish between voluntary and distress exit, based on venture performance., which is measured using Altman?s Z-Score. We infer on the influence of start-up and founder characteristics, on the type of exit, using Portuguese firm-level financial data with the matched employer-employee database that contains unique and detailed information on start-ups and founders from 2004 to 2009. Our results indicate that the size of the start-up and funding team, founder education, age and male gender positively impact the probability of continuation and sale and negatively impact liquidation. Younger founders are more likely to leave than to continue their ventures and older founders have lower odds of liquidation. Consistent with previous literature, bigger start-ups with more knowledgeable founders are less likely to liquidate.
Gasparim, Elizabeth. "Fibrados Holomórficos sobre blow-ups". Pontificia Universidad Católica del Perú, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/95997.
Testo completoQuispe, Farfán Percy Hugo. "UPC Exportador 2020. Exportación Digital". Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/653049.
Testo completoCampusano, Deckner. "UPC Exportador 2020. Importación Digital". Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/653050.
Testo completoEscardó, Cuglievan Rodrigo, e Sánchez María Osores. "Residencia universitaria para la UPC". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2013. http://hdl.handle.net/10757/273368.
Testo completoKursun, Fatih <1994>. "Mobile phone industry start ups". Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/15495.
Testo completoEléspuru, Briceño Liliana. "Visibilidad de la producción intelectual y académica de la UPC: 1er Encuentro Docente UPC Online 2013". Universidad Peruana de Ciencias Aplicadas (UPC), 2013. http://hdl.handle.net/10757/299466.
Testo completoCovas, Jose A. C. G. "Processing of UPVC in single and twin screw extruders". Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/11942.
Testo completoBertilsson, Sarah. "Glycanmapping of glycoproteins with UPLC-FLR-MALDI/TOF-MS". Thesis, Uppsala universitet, Analytisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-228040.
Testo completoRogers, C. D. F. "The response of buried uPVC pipes to surface loading". Thesis, University of Nottingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353928.
Testo completoKiška, Roman. "Stanovení přesnosti měření souřadnicového měřicího stroje Zeiss UPMC Carat". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442852.
Testo completoCarlström, Fabian. "Blow-ups and orders of vanishing". Thesis, KTH, Matematik (Inst.), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103022.
Testo completoBengtsson, Tobias, e Håkan Hult. "Combining Solar Energy and UPS Systems". Thesis, KTH, Tillämpad termodynamik och kylteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148042.
Testo completoSolenergi och avbrottsfri kraftförsörjning (UPS) är två tekniker som växer snabbt. Efterfrågan på solenergi ökar huvudsakligen på grund av den snabba utvecklingen mot billigare solceller, vilket lett till att solenergi blivit lönsamt i en större mängd applikationer. I många områden är solenergi dock fortfarande inte kostnadsmässigt konkurrenskraftigt jämfört med traditionella energikällor, vilket gör en fortsatt sänkning av kostnaderna för solenergi till en viktig fråga för solenergiindustrin. Detta examensarbete har som syfte att undersöka om det är tekniskt möjligt att kombinera solenergi med UPS-system samt potentialen för ekonomiska synergier med denna kombination. Tidigare forskning inom området har endast undersökt denna kombination från en rent teknisk synvinkel. Detta examensarbete driver istället hypotesen att ett kombinerat solenergi- och UPS-system kan leda till större kostnadsbesparingar jämfört med ett traditionellt nätanslutet solenergisystem, även i ett stabilt elnät som i Sverige. En on-line UPS skyddar en känslig last genom att kontinuerligt likrikta och sedan åter växelrikta inkommande ström för att därmed både isolera lasten från nätet samt höja strömkvalitén. I UPS-systemet finns därmed en likströmsdel dit solpanelerna direkt kan kopplas istället för att skicka den genererade solenergin ut på elnätet. Därmed undviks inköp och installation av sol-växelriktare i solenergisystemet. Studien är uppdelad i tre delar. Första delen är en datorsimulering i MATLAB och syftar till att explorativt undersöka det kombinerade systemet för en optimerad design innan fysiska experiment utförs. Den andra delen av studien utgörs av experiment på ett fysiskt prototypsystem baserat på ett principiellt UPS- och solenergisystem. Den tredje delen av studien är en ekonomisk analys av både investeringskostnader och energibalanser som jämför ett kombinerat system (UPS & sol) med två separata system (UPS & sol separat). Resultaten från prototypsystemet visar att påkopplandet av solceller i en principiell UPS har mycket låg påverkan på UPS-systemets funktionalitet, samt att solcellerna som en extra energikälla under vissa driftförhållanden kan ha en positiv påverkan på UPS-systemet. För optimal prestanda kan dock en viss integration av systemen krävas. Resultatet från den ekonomiska analysen visar att ett kombinerat system har potential att sänka investeringskostnaden genom billigare komponenter. Ett kombinerat system kan även leda till en högre energibesparing jämfört med ett nätanslutet solenergisystem eftersom konverteringsförlusterna i UPS-systemet sjunker i det kombinerade systemet. Slutsatsen av studierna är att ett kombinerat solenergi- och UPS-system är tekniskt möjligt. Dessutom finns betydande ekonomiska synergier med ett kombinerat system. Detta innebär att ett kombinerat system kan vara lönsamt även i fall där ett separat solelsystem inte är det.
Junuzovski, Edib, e Jari Yli-Hukka. "UPS-system i SÄS Byggnad 7". Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-19222.
Testo completoUppsatsnivå: C
Nair, Ganesh R. "Acquisition of medical device start-ups". Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37978.
Testo completoIncludes bibliographical references (leaf [39]).
Introduction: In the medical device space, a large proportion of the breakthrough inventions are developed by small firms that use private equity to bring their technologies from concept to varying stages of development. Medical Device companies spend a large proportion (11.4 % in 2002) of their sales on R&D, second only to Pharmaceutical companies. Smaller companies, in the meanwhile, spent 343 % of their sales in the same year'. [The Lewin Group (AdvaMed), 2004]. Private Equity financing is a critical factor that enables small start-ups to develop new technologies without a viable revenue stream to support the necessary R&D expenditure. In the medical device space, it has been noted that Venture Capital firms (VC's) use high risk capital to invest in early stage companies, and look for "exits" through either an Initial Public Offering (IPO) or through the sale of the start-up to an established firm. Corporations are also involved in varying degrees in early venture investments, through what is sometimes called Corporate Venture Capital (CVC), mainly for strategic reasons. Through CVC investments, some corporations hope, that as an insider, they would be able to judge better whether a particular company is a good target for acquisition. In this paper I review the exits through acquisition, from the perspective of venture backed start-ups, and hypothesize that factors related to the nature of investors, the type of investment, the impact of capital markets and the Intellectual Property of the company are associated with a higher exit valuation.
Ganesh R. Nair.
S.M.
Van, Papendorp J. F. "Digital control of line-interactive UPS". Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6537.
Testo completoENGLISH ABSTRACT: The digital control of UPS systems has been difficult in the past due to a lack of DSP technology. It was for this reason not possible to establishing the necessary control to regulate the voltages and currents of the UPS systems. Recent advances in DSP technology have however provided the means of establishing central control of the UPS system as well as incorporating more complex closed-loop control algorithms by utilising a single floating-point DSP. Closed-loop control strategies are investigated and the central control of a line-interactive UPS is established in this study. Both the status of the physical system as well as various system parameters are controlled. The system both regulates and charges the storage batteries when the main utility supply is maintained. In the event that the utility fails, the converter instantaneously changes power flow towards the load with the aim of maintaining an uninterrupted voltage supply. Several closed-loop deadbeat based control strategies are investigated for the regulation of the inductor current. A solution for the regulation of the DC-link is also developed and implemented. Furthermore, an intensive study is done on the regulation of the voltage supplied to the load in the event that the utility supply fails. The investigation is initially approached by considering classical control theory. Although these control strategies provided sufficient results, a predictive strategy that is based on the physical conditions of the switching converter is finally investigated to establish closed loop control of the output voltage. This resulted in a high-bandwidth voltage controller capable of maintaining control under a wide-array of load conditions.
AFRIKAANSE OPSOMMING: Die digitale beheer van UPS stelsels was moeilik in the verlede as gevolg van 'n gebrek aan DSP tegnologie. Dit was vir hierdie rede nie moontlik om beheer te kon bewerkstelling ten einde die spannings and strome in the UPS stelsels te kon reguleer nie. Onlangse vordering in DSP tegnologie het egter dit moontlik gemaak om sentrale beheer van die UPS stelsel te bewerkstellig sowel as om meer komplekse geslote lus beheer algoritmes te inkorporeer met behulp van 'n enkele DSP. Geslote lus beheer strategiëe word ondersoek en die sentrale beheer van die line-interaktiewe UPS word bewerkstellig in hierdie studie. Beide die huidige toestand van die fisiese stelsel sowel as die verskeie parameters word beheer. Die stelsel beide laai en reguleer die batterye terwyl die hooftoevoer onderhou word. In die geval dat die hooftoevoer faal, word die omsetter se rigting van drywingsvloei verander om die las te voorsien van 'n ononderbroke spannings toevoer. Verskeie geslote-lus “deadbeat” beheer strategiëe word ondersoek vir die regulasie van die induktor stroom. 'n Oplossing vir die regulasie van die GS-koppervlak word ook ontwikkel en geïmplementeer. Verder word 'n intensiewe studie gedoen op regulasie van die spanning wat aan die las gevoer word in die geval dat die hooftoevoer faal. Hierdie ondersoek word aanvanklik benader deur klassieke beheer teorie te bestudeer. Alhoewel hierdie beheer strategiëe voldoene resultate gebied het, was 'n voorspel beheerstrategie gebaseer op die fisiese toestand van die omsetter finaal ondersoek. Die resultaat is 'n hoë-bandwydte spannings beheerder wat daartoe instaat is om beheer te handhaaf onder 'n verskeidenheid van lastoestande.
Lima, Elaine Janine Martins de. "Determinants of start-ups capital structure". Master's thesis, Instituto Superior de Economia e Gestão, 2013. http://hdl.handle.net/10400.5/7377.
Testo completoO objetivo deste trabalho é analisar os determinantes mais relevantes da estrutura de capital inicial de novas empresas, através do desenvolvimento de um estudo empírico. A estrutura de capital tem sido a ser um dos temas mais controversos na literatura financeira. Embora haja uma grande quantidade de estudos empíricos e teóricos sobre este tema, não há ainda acordo na escolha da estrutura ótima de capital. Grande parte dos estudos concentra-se em empresas estabelecidas, negligenciando o tema das novas empresas. Recentemente, final dos anos 90, estudos sobre a estrutura de capital começaram a abordar o tema start-ups e pequenas empresas. Neste sentido, combinando dados financeiros de empresas e dados do fundador, que contêm informações detalhadas sobre as start-ups Portuguesas ao longo do período 2004 a 2009, a influência de fatores como o tamanho, a estrutura de ativos, o crescimento e as características dos fundadores na estrutura de capital inicial de start-ups foram analisadas. Os resultados confirman a hipótese de que o tamanho e a estrutura de ativos têm um impacto positivo sobre a estrutura de capital das start-ups, enquanto que o crescimento tem uma relação negativa. Esses resultados são consistentes com a teoria do pecking order que refere os problemas de assimetria de informação e a teoria do trade-off que refere os problemas de agência. O nível de significância e o impacto das características dos fundadores, nomeadamente a experiência no setor, regional e empresarial, educação, idade e género na estrutura de capital inicial das start-ups varia muito, não fornecendo resultados consistentes.
The objective of this paper is to analyze the most relevant determinants of new ventures initial capital structure, by developing an empirical study. Capital Structure has been one of the most controversial issues in financial literature during the past years. Although exists an enormous amount of empirical and theoretical studies on this topic, there is no agreement in choosing the optimal capital structure. Much of the existing research focuses on established firms, neglecting the field of entrepreneurial finance. Only recently, in the late 90s, the studies on capital structure were extended to start-ups and small firms. Concerning this, by combining Portuguese firm-level financial data with the matched employer-employee database, that contains unique and detailed information about the start-ups during the period 2004 to 2009, the influence of factors such as size, asset structure, growth orientation and owners' characteristics on start-ups initial capital structure were examined. The results support the hypotheses that size and asset structure have a positive impact on start-ups initial capital structure, while growth have a negative relation. These results are also consistent with the pecking order theory that incorporates information asymmetries issues and the trade-off theory with the agency problems. The level of significance and impact of owners' characteristics such as industry experience, regional experience, entrepreneurial experience, education, age and gender on start-ups initial capital structure varies widely, not providing consistent results.
Ferrer, Cárdenas Felipe. "Facultad de Arquitectura de la UPC". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2013. http://hdl.handle.net/10757/273294.
Testo completoKrátká, Tereza. "Optimalizace nákupního procesu ve společnosti UPC". Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-124587.
Testo completoMohr, Daniel A. "Erfolgsfaktoren deutscher Start-ups in China". Berlin wvb, Wiss. Verl, 2008. http://d-nb.info/990769291/04.
Testo completoBravo, Moral José Manuel. "Planificación estratégica para UPC desarrollos inmobiliarios". Tesis, Universidad de Chile, 2019. http://repositorio.uchile.cl/handle/2250/172641.
Testo completoWu, Cárdenas Carolina. "Facultad de Música de la UPC". Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2016. http://hdl.handle.net/10757/593067.
Testo completoTesis
Vajrapu, Rakesh Guptha, e Sravika Kothwar. "Software Requirements Prioritization Practices in Software Start-ups : A Qualitative research based on Start-ups in India". Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-15967.
Testo completoSmirat, Daniel. "Financial aspects facing start-ups during the go-to-market phase : Case studies of Swedish start-ups". Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69514.
Testo completoHajijafarassar, Shima. "UPLC-MS determination of selected compounds in foods and plasma". Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527929.
Testo completoFadrhonsová, Ivana. "Stanovení sibiromycinu metodou UPLC". Master's thesis, 2010. http://www.nusl.cz/ntk/nusl-285852.
Testo completo