Дисертації з теми "Technical optimization"
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Nazir, Ahsan. "Modelling and optimization of electrospun materials for technical applications." Thesis, Mulhouse, 2016. http://www.theses.fr/2016MULH0598/document.
Повний текст джерелаOptimization and modelling of electrospun nanofibrous nonwovens and their technical applications, i-e heat generation and respiratory protection, were studied in this work. For utilization in these applications, nanowebs were statistically modelled and optimized using different electrospinning techniques i-e needle and needleless setups based on significance of these techniques for lab and bulk scale production of nanowebs. Moreover, quantitative impact of different electrospinning parameters was also observed. Statistical analysis was found to be a useful tool for study of electrospinning process and production of nanowebs with minimum defects. The optimized nanowebs were used for selected applications and based on results it was concluded that they can be a potential material for both, heat generation and respiratory protection. These observations are expected to initiate more focused studies in both the fields
Webb, Tasha. "A technical communication internship with the Central Ohio Transit Authority (COTA) – The Ellipse Optimization Project." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1430395167.
Повний текст джерелаAllala, Prathyusha. "Genetic Optimization of Turbo Decoder." Ohio University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1293681661.
Повний текст джерелаLerch, Markus. "Technical-economic analysis, modeling and optimization of floating offshore wind farms." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/668880.
Повний текст джерелаEl sector eólico marino ha crecido significativamente durante las últimas décadas impulsado por la creciente demanda de energía limpia. Los parques eólicos en el mar pueden alcanzar factores de capacidad más altos en comparación a los parques eólicos en la tierra debido a que las velocidades del viento tienden a ser más altas y constantes en el mar. Ademas, existen menos restricciones con respecto al uso de la tierra, el impacto visual y el ruido. Sin embargo, la mayoría de los parques eólicos actuales utilizan subestructuras fijas que limitan su aplicación factible a aguas poco profundas. Las subestructuras flotantes para turbinas eólicas marinas (FOWTs en inglés) son una solución adecuada para aprovechar todo el potencial de la energía eólica, ya que tienen menos restricciones para las profundidades del agua y el fondo marino. Dado que varios prototipos de FOWTs se han probado con éxito en el mar, la industria ahora esta entrando a la fase comercial con el primer parque eólico flotante (FOWF en inglés) operativo y se proyecta que se pondrán en marcha más en los próximos anos. Esta transición aumenta la necesidad de herramientas integrales que permitan modelar el sistema completo y predecir su comportamiento, así como evaluar el rendimiento para diferentes lugares. El objetivo de esta tesis es analizar desde una perspectiva técnica y económica los FOWFs a escala comercial. Esto incluye el modelado de FOWTs, el estudio de su comportamiento dinámico, y la evaluación económica de diferentes conceptos. La optimización del diseño eléctrico también se aborda en esta tesis. El primer modelo desarrollado se aplica para analizar el rendimiento de un FOWT tipo Spar. El modelo se prueba con diferentes tipos de carga y se compara con un modelo de referencia. Los resultados de ambos modelos muestran una buena concordancia. Posteriormente, el modelo se aplica para estudiar el comportamiento con respecto a tres lugares diferentes. Los resultados muestran que incluso en el sitio con las condiciones más severas, no se mide ninguna pérdida significativa en la generación de energía, lo que demuestra el buen rendimiento de este concepto. El segundo modelo se utiliza para realizar una evaluación técnico-económica de los FOWF a escala comercial. Esto incluye una metodología integral del costo nivelado de energía (LCOE en ingles). El modelo se aplica a tres conceptos de FOWTs ubicados en tres lugares diferentes y considerando un parque eólico de 500MW. Los resultados indican que los FOWTs son una solución altamente competitiva y que la energía se puede producir con un LCOE igual o inferior en comparación con los parques eólicos con subestructuras fijas o las tecnologías de energía oceánica. Asimismo, se realiza un análisis de sensibilidad para identificar los parámetros claves que tienen una influencia significativa en el LCOE y que pueden ser esenciales para reducciones de costos. El último modelo se aplica para optimizar el diseño eléctrico en función de la teoría de optimización por enjambre de partículas. Inicialmente el modelo se valida contra un modelo de referencia y luego se utiliza para optimizar la conexión de los cables entre los FOWTs. El diseño eléctrico obtenido da como resultado una reducción de los costos de cables y una disminución de las pérdidas de energía. Finalmente, se estudia el uso de diferentes configuraciones de cables y se demuestra que el uso de cables únicamente dinámicos en comparación con los cables dinámicos y estáticos combinados da como resultado una disminución de los costos de adquisición e instalación debido a que evitan la necesidad de juntas submarinas costosas y costos adicionales de instalación.
Foster, James C. "Joint optimization of the technical and social aspects of workplace design." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/31002.
Повний текст джерелаMICROFICHE COPY AVAILABLE IN ARCHIVES AND DEWEY.
Bibliography: leaves 91-97.
by James C. Foster.
M.S.
Гладуш, Ірина Анатоліївна. "Professionally oriented foreign language training: self-study optimization at technical universities." Thesis, Київський національний університет технологій та дизайну, 2020. https://er.knutd.edu.ua/handle/123456789/15192.
Повний текст джерелаJinks, Douglas David. "Drying of latex backcoated acrylic fabrics: optimization and control." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/11242.
Повний текст джерелаCHANG, CARLOS ALEXANDRE. "TECHNICAL ECONOMIC OPTIMIZATION OF A HYBRID PHOTOVOLTAIC-DIESEL SYSTEM WITH BATTERY BANK." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=21838@1.
Повний текст джерелаCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
Esta dissertação analisa o custo, viabilidade e otimização do desempenho de um sistema híbrido de produção de energia elétrica, constituído de módulos fotovoltaicos, banco de baterias e gerador diesel. Foram realizadas simulações para diferentes configurações de sistema, variando tanto a profundidade de descarga quanto a capacidade total e operacional do banco de baterias, e o consumo total. O perfil do consumo foi mantido inalterado em todas as simulações realizadas. Para a simulação foi utilizado banco de dados constituído por informações meteorológicas, preços dos equipamentos do sistema, demanda de eletricidade e perfil de consumo da agrovila de Campinas (AM). Em posse desse conjunto de informações foi então elaborada análise de viabilidade econômica do fornecimento de eletricidade para uma comunidade rural localizada em uma região remota. Ou seja, localizada em uma região distante do acesso as redes de distribuição de energia elétrica. A simulação foi configurada para um sistema que possibilitasse acesso a equipamentos básicos (atendendo o Manual de Projetos Especiais – necessidade de atender refrigeração, comunicação e iluminação), fornecendo eletricidade com o menor custo possível. A avaliação do projeto demonstra que o mesmo é uma boa opção de investimento, considerando que o fornecimento elétrico é peça chave para o desenvolvimento econômico e social de qualquer localidade. Para a realização do estudo utilizou-se banco de dados de radiação solar e temperatura do município de Manaus, pertencente ao Estado do Amazonas, pressupondo-se que a localidade em questão possui condições meteorológicas semelhantes à área de estudo, desprezando-se possíveis diferenças. Além do que, o referido estudo adotou um período de vida útil de 25 anos ou mais para o sistema.
This dissertation analyses the cost, feasibility and optimization performance of a hybrid electric energy production system, composed of photovoltaic modules, storage batteries and a diesel generator. Several performance simulations were made for different system configurations, varying discharge depth, both total and operating capacity of the storage batteries, and total consumption, using the same profile shape. A data base was used for the simulations, using meteorological information, component prices, and electric energy power and consumption profiles for the rural Village of Campinas (AM). As a result, an economically feasible proposal was detailed for supplying electric energy to a rural village, which is away from available commercial networks. The simulation was used to determine the basic equipment configuration to minimize the electricity cost. The project evaluation shows it is a good investment option, considering that electric energy supply is fundamental for the social and economic development. Solar radiation and temperature data for the city of Manaus, AM, ware used for the simulations, which is considered to be approximately the same as for the rural Village of Campinas due to its proximity. In addition, this study adopted a working life of 25 years or more for the system.
Taylor, Stephen. "Radiation Protection in Radiology: Technical and Regulatory Uncertainties." Doctoral thesis, Universite Libre de Bruxelles, 2021. https://dipot.ulb.ac.be/dspace/bitstream/2013/317082/4/TOC.pdf.
Повний текст джерелаDoctorat en Sciences médicales (Médecine)
info:eu-repo/semantics/nonPublished
Robisch, Katherine A. "Search Engine Optimization: A New Literacy Practice." University of Dayton / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1394533925.
Повний текст джерелаAlwassouf, Sulaf. "Seroepidemiology of emerging sandly-borne phleboviruses : technical optimization and seroprevalence studies in the Mediterranean basin." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM5015/document.
Повний текст джерелаSandfly-borne phleboviruses, transmitted by phlebotomine sandflies and belonging to the genus Phlebovirus within the Bunyaviridae family are widely distributed in Mediterranean basin. Human diseases caused by infection with phleboviruses are known for a long time, but they are still neglected due to the lack of epidemiological knowledge and of diagnostic tools.The first part of this thesis was dedicated to optimize a comparative virus neutralisation test to study the seroprevalence of selected phleboviruses and to assess the capacity of each virus to infect humans and animals. The second part aimed to estimate the epidemiology of phlebovirus serocomplexes (Naples, Sicilian and Salehabad) in Mediterranean basin. In order to update the presence of these viruses and their capacity to infect animals, several serologic studies were carried out on animal blood samples in Tunisia, Portugal, Greece and Cyprus. The results demonstrated that the phleboviruses belonging to 3 distinct groups are widely circulating and capable to infect non human vertebrate at different rates in studied countries.The third part showed the capacity of newly discovered viruses (Adana and Medjerda valley viruses) belonging to Salehabad serocomplex to infect human and animal at low and high rates, respectively. These findings suggest the medical and veterinary importance of these viruses. The last part of this thesis, confirm the circulation of Toscana virus by seroprevelance study which was carried out in local population in north Algeria where Toscana virus was isolated recently. The high rate of circulate suggests that Toscana virus is heavily affecting sandfly-exposed people in Algeria
Atiah, Frederick Ditliac. "Dynamic multi-objective optimization for financial markets." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/79571.
Повний текст джерелаDissertation (MEng)--University of Pretoria, 2019.
Computer Science
MSc
Unrestricted
???????, ? ?, and E. Smyrnov. "?????????? ???????????? ???????????? ???????? ?????? ???????????????? ???????????" Thesis, ????, 2017. http://eztuir.ztu.edu.ua/123456789/5970.
Повний текст джерелаThesis for PhD degree in technical sciences on specialty 05.22.20 ? Operation and repair of transportation vehicles. ? Zhytomyr State Technological University, Zhytomyr, 2017. The thesis is dedicated to the development of models and methods for the determination of strategies and variants for technical development of motor transport companies. There had been researched the technical development of motor transport enterprises from the point of view of a system approach as the system of connections for renovation of the rolling stock as well as the production and technical base of the motor transport company. There had been developed the mathematical model and an algorithm for simulating variants for technical development, which take into account these connections. There had been backgrounded the objective function for determining the best variant based on a technical indicator ? the coefficient of technical readiness and economic indicator ? the net present value and payback period. There had been developed a software for facilitation of variants simulation following the developed model. There had been also developed the method for determining variants of technical development of motor transport enterprises. On the basis of the suggested models and the methods, there had been determined a technical development strategy and variant for private enterprise ?Autotranscom? that allow to improve the technical level, efficiency and competitiveness of the enterprise.
Nasution, Indera Sakti [Verfasser]. "Technical optimization of a laser marking process of banana fruits and poinsettia bracts / Indera Sakti Nasution." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2018. http://d-nb.info/1176105132/34.
Повний текст джерелаKováčik, Juraj. "Využití umělé inteligence na kapitálových trzích." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2014. http://www.nusl.cz/ntk/nusl-224421.
Повний текст джерелаTeeples, Allan W. "An Evolutionary Approach to Optimization of Compound Stock Trading Indicators Used to Confirm Buy Signals." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/820.
Повний текст джерелаPIERUCCIONI, DIEGO. "Analysis of geological parameters for optimization of geothermal probes applied to heat pumps: individuation of a technical and procedural iter." Doctoral thesis, Università degli Studi di Cagliari, 2016. http://hdl.handle.net/11584/266761.
Повний текст джерелаChinellato, Gianpietro <1986>. "Optimization of Semy-Dry anaerobic digestion for a wider diffusion of the Food Waste treatment for energy recovery. Technical and Economic evaluation." Doctoral thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/20602.
Повний текст джерелаOlson, Erik Davin. "Conceptual Design and Technical Risk Analysis of Quiet Commercial Aircraft Using Physics-Based Noise Analysis Methods." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11486.
Повний текст джерелаHorneber, Tobias [Verfasser], and Antonio [Akademischer Betreuer] Delgado. "Thermo-fluid dynamic characterization and technical optimization of structured open-cell metal foams by means of numerical simulation / Tobias Horneber. Gutachter: Antonio Delgado." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2015. http://d-nb.info/1075480558/34.
Повний текст джерелаPinheiro, Ãlvaro Daniel Teles. "Technical and economic feasibility of ethanol production in cashew apple juice from Saccharomyces cerevisiae flocculant." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15056.
Повний текст джерелаGiven the current situation in which it is the global energy sector, biofuels have been gaining more space, earning special attention the ethanol, which has shown growing demands. From this scenario, the objective of this work was to develop a bioprocess technically and economically practicable for ethanol production from cashew apple juice, using yeast Saccharomyces cerevisiae (CCA008) genetically modified containing a flocculent gene (FLO5α). The work was divided in 4 four stages that are linked throughout the study. In the first stage was evaluated the temperature influence (26, 30, 34, 38 and 42ÂC), the inoculum concentration (3, 5, 8 and 10 g.L-1) and the stirring speed (80, 150, 300, 490, 650 and 800 rpm), so it could be determined the best conditions to maximize ethanol production. It was observed that the temperature operating parameter, the initial cellular concentration, substrate concentration and stirring exerted influence on the alcoholic fermentation of the cashew apple juice. The best performance to the fermentative process (98,8 %) happened when the process was conducted at 34 ÂC, under 150 rpm stirring and 5 g.L-1 of initially cell concentration. The second stage was intended to describe the process efficiency in face of the operation parameters evaluated in fermentation. To this end, it was successfully used statistic models to describe the interaction between the initial substrate concentration, temperature, initial cell concentration, stirring and their possible effects on the yield. The model that best fit the experimental data was used to obtain the optimum conditions from the operating variables, indicating the following conditions as great: substrate concentration (S0) of 102 g.L-1, temperature (T) at 34ÂC, inoculum concentration (X0) of 5 g.L-1 and stirring (Agit) of 140 rpm, predicting a 98,80 % of efficiency. In the third stage was studied ethanol production in optimum conditions, being used to implement the scale up process, in which the data obtained in a 1L bioreactor batch were used to predict the fermentation behavior in a 14L bioreactor batch, using the volumetric power consumption as a parameter to scale-up. Using this factor as being of 10,67 kW/m3, it was possible to calculate the fermenter stirring power in a 14 times bigger volume, as well as foresee which stirring would be necessary so the fermentation can occur, similarly as in the lower volume fermenter. Results showed that yield from the 14L bioreactor were satisfactory, having a small difference (96,56 % Â 0,3 %) between yield from the 1L bioreactor (98,80 % Â 1,6 %). The fourth and last stage was rated the technical and economic viability of the process. Analyzing results, it is possible to say the industrial process here proponed has shown technical viability, since the value obtained for the process yield (68 L/ton), was close to sugar cane fermentation (61 â 72 L/ton). However, it did not show economic viability since the industrial unity provides negative cash flow (- R$ 93.840.874) in the end of 10 years that was analyzed. So, new studies must be conducted in order to make this process economically viable, this possibility being observed in various scenarios generated in analyzing the sensibility of process, which presents possible economically viable settings.
Diante da conjuntura atual em que se encontra o setor energÃtico mundial, os biocombustÃveis vÃm ganhando cada vez mais espaÃo, merecendo atenÃÃo especial o etanol, o qual apresenta demanda crescente. A partir desse cenÃrio, o objetivo do presente trabalho foi desenvolver um bioprocesso tecnicamente e economicamente viÃvel para produÃÃo de etanol a partir do suco de caju, utilizando levedura Saccharomyces cerevisiae (CCA008) geneticamente modificada contendo gene floculante (FLO5α). O trabalho foi dividido em 4 quatro etapas que se interligam durante todo o estudo. Na primeira etapa foi avaliada a influÃncia da temperatura (26, 30, 34, 38 e 42ÂC), da concentraÃÃo de inÃculo (3, 5, 8 e 10 g.L-1) e da velocidade de agitaÃÃo (80, 150, 300, 490, 650 e 800 rpm) para que as condiÃÃes Ãtimas que maximizam a produÃÃo de etanol, fossem determinadas. Observou-se que os parÃmetros operacionais de temperatura, concentraÃÃo celular inicial, concentraÃÃo de substrato e agitaÃÃo exerceram influÃncia na fermentaÃÃo alcoÃlica do suco de caju. O melhor rendimento para o processo fermentativo (98,8 %) ocorreu quando o processo foi conduzido a 34 ÂC, sob agitaÃÃo de 150 rpm e contendo incialmente 5 g.L-1 de cÃlulas. Na segunda etapa, pretendeu-se descrever o rendimento do processo em funÃÃo dos parÃmetros operacionais avaliados na fermentaÃÃo. Para tanto, utilizaram-se, com sucesso, modelos estatÃsticos para descrever a interaÃÃo entre a concentraÃÃo inicial de substrato, temperatura, concentraÃÃo celular inicial, agitaÃÃo e seus possÃveis efeitos no rendimento. O modelo que melhor se ajustou aos dados experimentais foi utilizado na obtenÃÃo das condiÃÃes Ãtimas das variÃveis operacionais, indicando as seguintes condiÃÃes como Ãtimas: concentraÃÃo de substrato (S0) de 100 g.L-1, temperatura (T) igual a 34 ÂC, concentraÃÃo de inÃculo (X0) igual a 5 g.L-1 e agitaÃÃo (Agit) de 140 rpm, predizendo um rendimento de 98,80 %. Na terceira etapa, realizou-se o estudo da produÃÃo de etanol nas condiÃÃes Ãtimas, sendo as mesmas utilizadas para implementar a ampliaÃÃo de escala do processo, na qual os dados obtidos em biorreator batelada de 1L foram utilizados para predizer o comportamento da fermentaÃÃo em biorreator batelada de 14L, utilizando a potÃncia por unidade de volume como parÃmetro de scale-up. Utilizando tal fator como sendo de 10,67 kW/m3, foi possÃvel calcular a potÃncia de agitaÃÃo do fermentador de volume 14 vezes maior, assim como prever qual agitaÃÃo seria necessÃria para que a fermentaÃÃo ocorresse de forma semelhante à ocorrida no fermentador de menor volume. Os resultados mostraram que o rendimento obtido no biorreator de 14L foi satisfatÃrio, apresentando uma pequena diferenÃa (96,56 %  0,3 %) para o biorreator de 14L em relaÃÃo ao rendimento obtido para o de 1L (98,80 %  1,6 %). Como quarta e ultima etapa, avaliou-se a viabilidade tÃcnica e econÃmica do processo. Analisando os resultados obtidos, à possÃvel afirmar que o processo industrial proposto apresentou viabilidade tÃcnica, uma vez que o valor obtido para o rendimento do processo (68 L/ton), foi prÃximo ao da fermentaÃÃo da cana-de-aÃÃcar (61 â 72 L/ton). Contudo, o mesmo nÃo apresentou viabilidade econÃmica, uma vez que a unidade industrial proporciona um fluxo de caixa negativo (- R$ 93.840.874) ao final dos 10 anos em que foi analisado. Assim, novos estudos devem ser realizados com o intuito de tornar tal processo economicamente viÃvel, sendo esta possibilidade observada nos vÃrios cenÃrios gerados na anÃlise de sensibilidade do processo, o qual apresenta possÃveis configuraÃÃes economicamente viÃveis.
Papacostantis, Evangelos. "Competitive co-evolution of trend reversal indicators using particle swarm optimisation." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/23929.
Повний текст джерелаDissertation (MSc)--University of Pretoria, 2010.
Computer Science
unrestricted
Andrew, Brandon E. "DETERMINATION OF STRATEGIC PRIORITIES FOR A MICROBIOME COMPANY THROUGH ANALYSIS OF TECHNICAL CAPABILITIES AND CURRENT MARKET LANDSCAPES." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1586527376213742.
Повний текст джерелаDuarte, Dorivaldo Costa. "Análise, dimensionamento e design de um sistema fotovoltaico para um edifício de serviços." Master's thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/26502.
Повний текст джерелаOndrušová, Denisa. "Technická analýza." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2012. http://www.nusl.cz/ntk/nusl-223537.
Повний текст джерелаKrňávek, Jan. "Investiční modely v prostředí finančních trhů." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2017. http://www.nusl.cz/ntk/nusl-319226.
Повний текст джерелаAbonaem, Mokhtar [Verfasser], Johannes A. [Akademischer Betreuer] Jehle, and Jörg [Akademischer Betreuer] Simon. "Selection, Optimization and Technical Application of Entomopathogenic Nematodes for the Biological Control of Major Insect Pests on Tomato / Mokhtar Abonaem ; Johannes A. Jehle, Jörg Simon." Darmstadt : Universitäts- und Landesbibliothek, 2021. http://d-nb.info/123741492X/34.
Повний текст джерелаAnders, Gerrit Verfasser], and Wolfgang [Akademischer Betreuer] [Reif. "Self-Organized Robust Optimization in Open Technical Systems: Self-Organization and Computational Trust for Scalable and Robust Resource Allocation under Uncertainty / Gerrit Anders ; Betreuer: Wolfgang Reif." Augsburg : Universität Augsburg, 2017. http://d-nb.info/1136864318/34.
Повний текст джерелаGivisiez, Arthur Gonçalves. "Technical and economical evaluation of combined cooling, heat and power technology: a brazilian study case considering different consumers." Universidade Federal de Juiz de Fora (UFJF), 2018. https://repositorio.ufjf.br/jspui/handle/ufjf/7553.
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O mundo está tentando mudar para um ambiente de energia mais limpa, especialmente no setor de geração de eletricidade, que é responsável por uma grande parcela das emissões de CO2. No Brasil, fontes renováveis são responsáveis por grande parte da geração de eletricidade, mas mudanças atuais no clima brasileiro trouxeram uma necessidade de diversificação na matriz energética. Logo, a geração distribuída é uma boa maneira de diversificar a matriz energética brasileira. Considerando que os sistemas de cogeração se enquadram na geração distribuída, e que os prédios brasileiros necessitam de resfriamento, devido ao clima quente, o uso de cogeração adicionado à um chiler de absorção ou absorção pode ser muito útil. O sistema de trigeração é um processo altamente eficiente, que pode produzir eletricidade, aquecimento e resfriamento a partir da mesma fonte de energia primária. No entanto, existem poucas pesquisas sobre os sistemas de trigeração no Brasil, especialmente em pequena e micro escala. Assim, esta dissertação fará uma avaliação técnica e econômica de sistemas de micro e trigeração para diferentes edifícios sob políticas tarifárias distintas no Brasil. Para tanto, este trabalho otimizará o dimensionamento e o cronograma de despacho mensal dos sistemas de trigeração para cada um dos quatro estudos de caso. Em seguida, avaliará o valor presente líquido máximo (VPL) considerando a variação da taxa de desconto e da taxa de conversão do dólar norte-americano. Na sequência, o índice de dependência da rede (GDI), o payback descontado, o custo nivelado da energia (LCOE) e a razão da energia primária (PER) para os melhores VPLs serão apresentados e analisados. Como resultado, esta dissertação mostrará que as plantas de trigeração podem ser lucrativas e certamente ser uma maneira eficiente de utilização de uma geração distribuída confiável e controlável. Além disso, provará que é possível encontrar situações em que a planta de trigeração possa oferecer uma alta taxa de energia primária (PER), um adequado custo de energia nivelado (LCOE) e, ao mesmo tempo, pode proporcionar economia financeira com tempo de retorno razoável em edifícios brasileiros.
The world is trying to move to a cleaner energy environment, especially on the electricity generation sector, which is responsible for a large share of CO2 emissions. In Brazil,crenewable energy sources are responsible for a great part of the electricity generation, but current changes in the Brazilian climate brought a necessity of diversification on the energy matrix. Then, distributed generation is a good way to diversify the Brazilian power matrix. Considering that cogeneration systems are distributed generation, and Brazilian buildings have need of cooling, due to the warm weather, the use of cogeneration equipped with an absorption or adsorption chiller could be beneficial. The trigeneration system is a highly efficient process, which can produce electricity, heating and cooling from the same primary energy source. However, there are really few researches concerning trigeneration systems in Brazil, especially on small and micro plants. Thus, this thesis will make and provide a technical and economical evaluation of small and micro trigeneration systems to different buildings under distinct tariff policies in Brazil. To do so, this work will optimize the sizing and monthly schedule the dispatch of the trigeneration systems to each one of the four study cases. Then, it will evaluate the maximum net present value (NPV) considering the variation of discount rate and US Dollar conversion rate. In the sequence, the grid dependence index (GDI), the discounted payback, the levelized cost of energy (LCOE) and the primary energy ratio (PER) to the best NPVs will be presented and analysed. As a result, this thesis will show that trigeneration plants can be profitable and can be certainly an efficient way to adopt a reliable and controllable distributed generation. Also, it will prove that it is possible to find situations in which the trigeneration plant can offer a high primary energy ratio, a fair levelized cost of energy, and in the meantime, it can provide financial savings with fair payback time in Brazilian buildings.
Watson, Veronica. "Basic system configuration in search engine." Xavier University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=xavier1545566567119888.
Повний текст джерелаDotti, Isabella. "Towards molecular medicine:optimization of the methods for gene expression analysis in clinical samples." Doctoral thesis, Università degli studi di Trieste, 2008. http://hdl.handle.net/10077/2626.
Повний текст джерелаThe advent of molecular “-omics” technologies enabled an unprecedented view into the inner molecular mechanisms of cancer and enhanced optimism towards a patient-tailored vision of medicine. The successful application of these molecular approaches in the discovery of candidate biomarker has accelerated the shift towards personalization of medicine. Indeed, biomarkers hold great promise for refining our ability to establish early diagnosis and prognosis, and to predict response to therapy. The develoment of clinically useful biomarkers would be impossible without access to human biological specimens and associated patient data, since they complete the molecular information gained from laboratory research. Furthermore, with the advances of sensitive molecular technologies, human bio-specimens can be now successfully used for wide analysis at all molecular levels (DNA, RNA and proteins), in addition to conventional cytologic and histologic investigations. However, despite the hundreds of reports on tumor markers, only a few markers have proven clinically useful. The insufficient experience in clinical application of molecular methods combined with the high complexity of clinical material represent the major obstacles for the development of clinically useful biomarkers. Thanks to the possibility to have access to the fresh and archival samples from the hospital, our laboratory can investigate the potential of technological innovations and the current technical pitfalls directly on clinical material. The work in my thesis is strictly correlated to this activity. In particular, the first part is focused on the technical optimization of molecular methods for gene expression analysis in biological fluids and especially in urine samples. In this context we validated a new experimental kit for total RNA extraction from urine samples and tested the potential of a colorimetric approach for PCR product detection. The major part of the study is focused on the technical optimization of molecular methods for gene expression analysis in archival material. This activity is in step with one of the main objectives of the European project called “Archive tissues: improving molecular medicine research and clinical practice-IMPACTS”, in which my laboratory and other 20 European centres are directly involved. In this phase the comparison of the experiences between laboratories and their active collaboration are essential for a more rapid validation of protocols dedicated to RNA (but also DNA and protein) analysis. In particular, we investigated some molecular aspects involved in the pre-analytical phase (tissue fixation procedures) and analytical phase (RNA extraction, RNA quantification and integrity assessment, qRT-PCR) of tissue processing. The final objective of this activity will be the definition of common technical guidelines for a reliable quantification of molecular biomarkers for diagnosis, prognosis and therapy directly in human archival samples. Finally, my thesis includes the clinical application of molecular methods for the quantification of candidate biomarkers in two archival case studies (a breast cancer and an adrenal gland cancer case study). In the breast cancer case study we showed that a panel of seven genes (involved in different cell pathways) is associated to patients’ survival. The adrenal gland tumor case study is part of a preliminary study about the angiogenetic process in rare human cancers.
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Regen, Ondřej. "Technická analýza." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2014. http://www.nusl.cz/ntk/nusl-224434.
Повний текст джерелаPutna, Ondřej. "Termické zpracování odpadů jako klíčový prvek efektivních systémů odpadového hospodářství." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-433521.
Повний текст джерелаMalmberg, Olle, and Joakim Wellenstam. "Quantum Portfolio Optimization : a Multi-Level Perspective Study of the Swedish Fund Management Industry." Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296676.
Повний текст джерелаUnder de senaste åren har kvantdatorer uppnått nya nivåer av sofistikation och är enligt vissa uppskattningar bara några år från att användas i produktion. Alltmer litteratur pekar ut potentiella användningsområden inom olika branscher och finansbranschen har identifierats som ett område med särskilt stor potential. En applikation som nyligen sett experimentell framgång är 'Quantum Portfolio Optimization' (QPO), där forskare framgångsrikt har översatt och beräknat optimeringsuppgiften på existerande kvantdatorer. Eftersom klassiska portföljoptimeringsalgoritmer ofta är krävande i datorkraft så kan kvantdatorers snabbhet potentiellt ge stora fördelar för olika intressenter. En bransch som använder portföljoptimering är fondförvaltning. Med tanke på den mångfald som finns bland fonder, med avseende på strategi och metoder, är det troligt att sociologiska faktorer spelar en roll i valet av vilka tekniska lösningar som används. Samspelet mellan sociologiska och tekniska faktorer kommer att vara centralt i denna studie, då den ämnar undersöka villkoren förutsättningarna för QPO inom svenska fondindustrin genom ett sociotekniskt perspektiv. Först genomförs halvstrukturerade kvalitativa intervjuer med branschaktörer och kvantdatoraktörer. Detta följs av en tematisk analys i två steg, strukturerad efter de sociotekniska dimensionerna i Geels 'Multi-Level Perspective' (MLP). Baserat på kodning av uttalanden så skapas fyra nyckelteman för att beskriva branschens egenskaper. Sedan analyseras dessa teman tillsammans med nischen, QPO, utifrån perspektiv från systeminnovationsteorier för att utvärdera QPO:s beredskap och dess potentiella sociotekniska effekter på branschen. De viktigaste resultaten som kännetecknar fondindustrin sammanfattas genom fyra teman. I synnerhet är avvägningen mellan kvantitativa och kvalitativa metoder, bristfälligheten i historiska data, betydelsen av tredjepartsleverantörer och det dåligt fungerande och styva konkurrenslandskapet viktiga egenskaper. Det nuvarande läget för QPO anses inte ha nått en kommersiellt lönsam nivå sett till förhållandet mellan pris och prestanda, men nischen har byggt ett starkt stödnätverk som kommer hjälpa den att förbättras över tid. Dessutom pekar resultaten mot att nischteknologin QPO kommer att introduceras i begränsad utsträckning, men kan med tiden ändå komma att orsaka betydande störningar eftersom den bidrar till att omforma branschens socio-tekniska arkitektur.
Trutnová, Zuzana. "Daňové odpisy hmotného majetku." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2015. http://www.nusl.cz/ntk/nusl-225031.
Повний текст джерелаSpáčil, Přemysl. "Technická analýza." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2015. http://www.nusl.cz/ntk/nusl-225024.
Повний текст джерелаNeveux, Thibaut. "Modélisation et optimisation des procédés de captage de CO2 par absorption chimique." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0266/document.
Повний текст джерелаCO2 capture processes by chemical absorption lead to a large energy penalty on efficiency of coal-fired power plants, establishing one of the main bottleneck to its industrial deployment. The objective of this thesis is the development and validation of a global methodology, allowing the precise evaluation of the potential of a given amine capture process. Characteristic phenomena of chemical absorption have been thoroughly studied and represented with state-of-the-art models. The e-UNIQUAC model has been used to describe vapor-liquid and chemical equilibria of electrolyte solutions and the model parameters have been identified for four solvents. A rate-based formulation has been adopted for the representation of chemically enhanced heat and mass transfer in columns. The absorption and stripping models have been successfully validated against experimental data from an industrial and a laboratory pilot plants. The influence of the numerous phenomena has been investigated in order to highlight the most limiting ones. A methodology has been proposed to evaluate the total energy penalty resulting from the implementation of a capture process on an advanced supercritical coal-fired power plant, including thermal and electric consumptions. Then, the simulation and process evaluation environments have been coupled with a non-linear optimization algorithm in order to find optimal operating and design parameters with respect to energetic and economic performances
Babič, Vojtěch. "Návrh automatického obchodního systému na devizových trzích s využitím fraktální geometrie." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2016. http://www.nusl.cz/ntk/nusl-254205.
Повний текст джерелаPolanský, Jan. "Návrh automatického obchodního systému pro měnový trh." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2016. http://www.nusl.cz/ntk/nusl-254259.
Повний текст джерелаLima, Juliana Benoni Arruda. "Otimização de sistema de aquecimento solar de água em edificações residenciais unifamiliares utilizando o programa TRNSYS." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/3/3146/tde-03032004-153752/.
Повний текст джерелаSolar water heating systems have been widely used in Brazil for domestic purposes in single-family residences, taking advantage of the potential energy of the water of the superior reservoir and the phenomenon of the termosyphon for the circulation of the hot water. However these solar water heating systems are usually design through tables supplied by the manufacturers that indicate the number of flat plates collectors in function of the size of the family and of the number of points of use of hot water. That design is much more based on the intuition and on the manufacturers experience than in scientific data. Therefore this work has developed an optimization model for projects of solar water heating systems, using a routine of a long-period numeric simulation in flow transient. The optimized design supplies the inclination and the area of the flat plate collector that results in the minimum cost over the equipments lifetime. This cost includes expenses with the installation, maintenance and use of auxiliary energy. The computational procedure was executed with specific characteristics of the project, such as: local climatic conditions, profile of the hot waters demand, orientation of the flat plate collector and the temperature wanted for the storage of the hot water. It was studied a solar water heating system by termosyphon with flat plate collector for the climate of São Paulo. This model search to facilitate the design of the solar water heating systems for the designers, of each projects real conditions.
Novák, Tomáš. "Optimalizace investičních strategií pomocí genetických algoritmů." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2015. http://www.nusl.cz/ntk/nusl-224983.
Повний текст джерелаKundračík, Roman. "Návrh a optimalizace obchodní strategie na platformě MetaTrader." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2016. http://www.nusl.cz/ntk/nusl-241558.
Повний текст джерелаBagherpour, Raheb [Verfasser]. "Technical and economical optimization of surface mining processes : development of a data base and a program structure for the computer based selection and dimensioning of equipment in surface mining operations / vorgelegt von Raheb Bagherpour." [Clausthal-Zellerfeld] : [Univ.-Bibliothek], 2007. http://d-nb.info/986102261/34.
Повний текст джерелаJenke, Marcus, Karoline Binder, and Thomas Maier. "Methode zur Verbesserung der Usability durch gezielte Förderung mentaler Modelle." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-223912.
Повний текст джерелаLundberg, Johan. "Dynamic Risk Management in Information Security : A socio-technical approach to mitigate cyber threats in the financial sector." Thesis, Örebro universitet, Handelshögskolan vid Örebro Universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-87359.
Повний текст джерелаUnder senaste decenniet har en ny våg av sociotekniska cyberhot uppkommit som är riktade både mot de sociala och tekniska sårbarheterna hos organisationer. Dessa hot kräver snabba och effektiva hotreduceringar, dock är det fortfarande vanligt att finansiella organisationer förlitar sig på årligen granskade riskhanteringsmetoder som både är långsamma och statiska för att mildra de ständigt föränderliga cyberhoten. Syftet med denna forskning är att undersöka området för dynamisk riskhantering inom informationssäkerhet ur ett sociotekniskt perspektiv, med målsättningen att snabbare och dynamiskt kunna mildra bägge typerna av hot för att bättre passa dagens uppkopplade värld. I studien användes Design Science Research för att skapa en dynamisk riskhanteringsmodell med syfte att hantera sociotekniska cyberhot mot informationssäkerheten. Riskhanteringsmodellen är baserad på funktionskrav insamlade genom intervjuer med yrkesverksamma inom finanssektorn, samt strukturerade litteraturstudier. Avslutningsvis utvärderades den konstruerade dynamiska modellen avseende dess funktionalitet och användbarhet. Resultaten av utvärderingen påvisade att den slutgiltiga dynamiska riskhanteringsmodellen har en stor potential att mitigera både sociala och tekniska cyberhot på ett dynamiskt sätt.
Schwarz, Alexander [Verfasser], and A. [Akademischer Betreuer] Albers. "Integration von Messdaten in die Simulation zur multikriteriellen, zeiteffizienten versuchsbasierten Optimierung technischer Systeme = Integration of measurement data in the simulation for the multicriteria time-efficient testbased optimization of technical systems / Alexander Schwarz. Betreuer: A. Albers." Karlsruhe : KIT-Bibliothek, 2013. http://d-nb.info/1046888781/34.
Повний текст джерелаСиротенко, Михаил Александрович. "Модели и методы оптимизации размещения аппаратных средств повышения эффективности электроснабжения в сетях 10 кВ". Thesis, Харьковский национальный технический университет сельского хозяйства им. Петра Василенко, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21801.
Повний текст джерелаDissertation for scientific degree of candidate of technical sciences, specialty 05.14.02 – electric power stations, networks and systems. – Kharkiv national technical University of agriculture named after Peter Vasilenko, Kharkiv, 2016. The dissertation is devoted to the resolution of the actual scientific and technical problems of decision-making on the placement optimization of efficiency improving means in distribution networks under initial information uncertainty to improve the efficiency of electricity consumers. It was developed and improved a number of methods for evaluate electricity shortage and average time of search fault location to take into account the existence of different means for efficiency improving of the network. The problem of the optimal solutions finding under the initial information uncertainty was formulated. It was theoretically grounded and suggested the algorithm that reduces the number of iterations when looking for optimal solution by the priority criteria for the decision making person. The dependence of optimal solutions on the length of transmission lines and power consumers was researched in 10 kV distribution networks.
Paes, Junior Marcelo Renato de Cerqueira. "Alocação Otimizada de Centrais Solares Fotovoltaicas no Sistema de Distribuição do Oeste do Estado da Paraíba." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/7555.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
The present work aims to simulate the effects of connecting photovoltaic power plants in the active energy losses of the distribution system at the west of the state of Paraíba. Initially was done the modeling of the distribution system, which has one supply point, 20 substations 69/13.8 kV and 25 distribution lines 69 kV. For network analysis was used the Newton-Raphson method for solution of power flow after and before the insertion of photovoltaic plants and finally an optimized allocation of solar photovoltaic plants has been proposed with the aim of minimizing losses of active power using genetic algorithms.
O presente trabalho tem como objetivo simular os efeitos da conexão de centrais geradoras fotovoltaicas nas perdas de energia ativa do sistema de distribuição do oeste do estado da Paraíba. Inicialmente foi realizada a modelagem do sistema de distribuição, que possui um ponto de suprimento, 20 subestações rebaixadoras 69/13,8 kV e 25 linhas de distribuição 69 kV. Para análise da rede foi utilizado o método de Newton-Raphson para solução do fluxo de potência do sistema antes e depois da inserção das centrais fotovoltaicas e por fim foi proposta uma alocação otimizada das centrais solares fotovoltaicas com o objetivo de minimização das perdas de energia ativa utilizando algoritmos genéticos.
Деревянко, Богдан Володимирович, та Bogdan Derevyanko. "Щодо вдосконалення системи навчальних закладів Донецького регіону на основі зарубіжного досвіду". Thesis, Інститут економіко-правових досліджень НАН України, 2011. http://dspace.puet.edu.ua/handle/123456789/6715.
Повний текст джерелаСиротенко, Михайло Олександрович. "Моделі та методи оптимізації розташування апаратних засобів підвищення ефективності електропостачання в мережах 10 кВ". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21787.
Повний текст джерелаDissertation for scientific degree of candidate of technical sciences, specialty 05.14.02 – electric power stations, networks and systems. – Kharkiv national technical University of agriculture named after Peter Vasilenko, Kharkiv, 2016. The dissertation is devoted to the resolution of the actual scientific and technical problems of decision-making on the placement optimization of efficiency improving means in distribution networks under initial information uncertainty to improve the efficiency of electricity consumers. It was developed and improved a number of methods for evaluate electricity shortage and average time of search fault location to take into account the existence of different means for efficiency improving of the network. The problem of the optimal solutions finding under the initial information uncertainty was formulated. It was theoretically grounded and suggested the algorithm that reduces the number of iterations when looking for optimal solution by the priority criteria for the decision making person. The dependence of optimal solutions on the length of transmission lines and power consumers was researched in 10 kV distribution networks.