Dissertations / Theses on the topic 'Section of the pipeline'
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Miller, Hennessy Felicia, and Hennessy Felicia Miller. "Assessment of Ephemeral Channel Cross-Section Morphology Following Pipeline Construction in Southern Arizona." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/624133.
Full textYiasoumis, Demetris. "Real Options in the Energy Sector: The Case of Oil/Natural Gas Pipeline Networks." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486549.
Full textKumaravel, Sharanya. "Enriching the genetic counseling recruitment pipeline: A national cross-sectional study of high school counselors." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1276975834.
Full textГусарова, И. Г., and В. С. Рязанов. "Моделирование нестационарных режимов течения по участку негоризонтального трубопровода." Thesis, ХНЕУ, 2016. http://openarchive.nure.ua/handle/document/2288.
Full textGoglund, Filip. "The Nord Stream Natural Gas Pipeline & the European Union's security situation; : a case study of economic securitization." Thesis, Linnaeus University, School of Social Sciences, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-6103.
Full textThis thesis has investigated and analysed whether or not the Nord Stream Natural Gas Pipeline has affected or changed Europe's security situation. By analysing how the Nord Stream Natural Gas Pipeline has been described as a political or economic project by the EU, one can conclude whether the project has been securitized by the EU or not. This is done through the study of official EU documents. The documents have been analysed using framework for sector analysis and securitization as theorised by the Copenhagen School of international relations. By distinguishing the different conceptions of threat, security and methods discussed in these documents it is possible to analyse whether arguments belong to either the economic or political sector of sector analysis, and how they can be seen as signs of securitization. This has been done by utilizing qualitative text analysis in a case study framework. The thesis concludes that the Nord Stream Natural Gas Pipeline has not been securitized as a threat by the EU. On the contrary, the project is endorsed as a part of energy proliferation. The EU insist and encourages upon the project and several similar ones in order to ensure energy security for the EU in the future.
Незамай, Б. С. "Метод та пристрій контролю напружено-деформованого стану магістральних трубопроводів за їх формою перерізів." Thesis, Івано-Франківський національний технічний університет нафти і газу, 2008. http://elar.nung.edu.ua/handle/123456789/4254.
Full textДиссертация посвящена решению проблемы оценки напряженно-деформированного состояния (НДС) открытых участков линейной части магистральных трубопроводов ЛЧМТ. Диссертация состоит из введения, четырех глав и приложений. Обоснована актуальность работы, сформулированы цели и задачи исследований, подана научная новизна и практическая ценность полученных результатов, отражены основные результаты работы. Показано, что открытые участки ЛЧМТ функционируют под воздействием разнообразных внешних факторов, количественный, а иногда и качественный анализ которых в реальных условиях невозможен. Во время длительной эксплуатации в теле трубы накапливаются дефекты, в том числе дефекты формы сечений, которые воздействуют на НДС конструкции. Проделанный анализ современного состояния диагностирования ЛЧМТ показал, что существующие системы контроля трубопроводов обладают рядом недостатков. Ограниченные функциональные возможности рассмотренных технических средств не позволяют получить всю необходимую информацию о параметрах состояния трубопровода, что влияет на результат контроля его НДС. Существующие расчетные методы определения НДС ЛЧМТ позволяют получать адекватную картину состояния только в случае, когда удается точно оценить все воздействия на участок трубопровода. Розработанная математическая модель деформирования трубопровода включает возможные деформации его сечений и, тем самым, позволяет более точно описать явления в теле трубы ЛЧМТ в процессе его эксплуатации. Впервые создан расчетный метод контроля НДС ЛЧМТ, который, в отличие от существующих, учитывает форму сечения трубы магистрального трубопровода. Создан метод восстановления пространственной конфигурации открытых участков трубопроводов на основании информации о форме его сечений с использованием метода локальных вариаций. Розработано алгоритмическое обеспечение, реализующее математическую модель деформирования трубопровода, и позволяющее моделировать НДС конкретных открытых участков ЛЧМТ. Розработано алгоритмическое и программное обеспечение метода контроля НДС трубопроводов на основании информации о координатах ограниченого числа точек поверхности трубопровода. С целью выявления требований к средствам контроля формы сечений проведены исследования методами имитационного моделирования. При этом бьло установлено, что аналитическое представление формы сечения трубопровода, полученное в результате интерполяции кубическим сплайном со сглаживанием результатов измерений может быть использован для контроля НДС трубопровода. Розработан первичный преобразователь и микропроцессорное устройство для контроля конфигурации формы сечения трубы. Промышленное использование розроботанных методов и технических средств контроля НДС при проведении ремонтных робот на участках трубопровода около села Лопушне Мижгирского района Закарпатской области Долинского ЛВУМГ подтвердило их эффективность.
The dissertation is devoled to the solution of the stress and strained state estimations problem for the trunk pipeline’s linear portion above-ground segments. It was shown, that above-ground segments of the trunk pipelines linear portion are situated under the action of different influences, the quantitative and sometimes the qualitative one’s analysis is impossible in the real working conditions. As results of these external influences action the defect’s appearence and accumulation takes place in pipeline, in particullary - the defects of section shape, which make the influence on the general stress and strained state of the construction. The mathematical model of the deformation process in pipeline is designed taking to account the possible deformation of the one’s sections. If allows to describe the processes, which take place in the trunk pipeline linear portion during the long term exploitation, with the increasing level of accuracy. The sensor and microprocessor device for the pipeline section shape configuration control are designed, the method of above-ground pipeline’s segments space configuration reconstruction is given based on the information about the one’s section shape using the local variations method.
Sawaya, Antoine. "Pipeline logiciel." Versailles-St Quentin en Yvelines, 1997. http://www.theses.fr/1997VERS0012.
Full textДорошенко, Я. В. "Розробка методів локалізації пошкоджень газопроводу для проведення ремонтних робіт." Thesis, Івано-Франківський національний технічний університет нафти і газу, 2006. http://elar.nung.edu.ua/handle/123456789/4099.
Full textВ первом разделе выполнен анализ состояния газотранспортной системы Украины, причин отказов и методов ремонта линейной части газопроводов, на основании которого сформулированы цель и задачи работы. Второй раздел посвящен разработке и теоретическому исследованию технологии локализации сквозных дефектов газопровода. Разработана конструкция устройства для локализации места течи в газопроводе, применение которого позволит провести ремонт газопровода без прекращения транспортировки газа, что даст возможность обеспечить бесперебойное снабжение потребителей газом и существенно снизит потери газа во время проведения ремонтных работ. Предложены технологии, которые можно применить для ремонта сквозного дефекта газопровода после локализации течи. Создан алгоритм реализации математической модели, который учитывает влияние аварийной течи на динамику движения устройства газопроводом, что даст возможность оперативно принимать диспетчерские решения для управления скоростью движения устройства и определять распределение значений эксплуатационных параметров вдоль газопровода во время движения устройства к месту аварии. С помощью уравнений, полученных в результате реализации математической модели движения устройства газопроводом, проведены теоретические исследования динамики движения устройства для локализации места течи по газопроводу к месту аварии, рассчитано время доставки устройства к месту аварии, определено распределение давления и характер изменения скорости движения устройства по длине газопровода. Исследовано зависимость объема утраченного газа за время доставки устройства до места течи от диаметра течи, что позволит перед применением разработанного метода провести экономическую оценку. Проведен анализ процесса торможения устройства для локализации места течи в месте аварийной утечки газа. Исследовано влияние динамически приложенных нагрузок на конструкцию устройства для локализации места течи и стопорный узел, что позволило выбрать такие геометрические размеры корпуса устройства и стопорного узла, которые обеспечат работоспособность конструкции во время столкновения устройства с стопором. Проведена оценка эффективности работы газопровода во время частичного перекрытия его полости устройством для локализации места течи путем определения зависимости величины давления газа в конце участка газопровода от падения давления на устройстве. В третьем разделе приведены результаты экспериментальных исследований динамики движения устройства для локализации места течи по трубопроводу к месту аварии и влияния частичного перекрытия трубопровода устройством на эффективность его работы. Для практической реализации поставленных задач изготовлен объект исследований - модель устройства для локализации места течи и разработано и построено экспериментальный стенд. Экспериментально исследовано изменение скорости движения модели устройства для локализации места течи по длине трубопровода и установлено, что характер экспериментальных кривых совпадает с характером кривых построенных на основе теоретических исследований. С помощью метода математического планирования эксперимента исследовано влияние расхода воздуха в трубопроводе, расхода воздуха через аварийную течь и геометрического уклона трубопровода к горизонту на скорость движения модели устройства для локализации места течи трубопроводом. Проведены экспериментальные исследования влияния расхода воздуха в трубопроводе на скорость движения модели устройства. Экспериментально определен коэффициент местного сопротивления модели устройства и проведены экспериментальные исследования влияния частичного перекрытия трубопровода моделью устройства на эффективность его работы. Четвертый раздел посвящен разработке и теоретическому исследованию технологии локализации участка газопровода. Разработана конструкция устройства для локализации участка газопровода, применение которого позволит локализовать протяжный участок газопровода и обеспечит возможность замены устаревших и дефектных крановых узлов, протяжных дефектных участков газопровода, без опорожнения и продувки газопровода. Создан алгоритм реализации математической модели движения устройства дефектным участком газопровода с аварийной утечкой газа за устройством, что позволило определить расстояние, которое пройдет устройство от места аварийной утечки газа к полной остановке. Проведены теоретические исследования зависимости расстояния, которое пройдет устройство после прохождения места аварийной утечки газа к полной остановке от скорости движения устройства к аварийной утечке газа для разных диаметров газопроводов.
Dissertation is devoted to development of localization method of penetration defects of a gas pipeline, where the main purpose is to provide the possibility to lead repair works without stopping transporting the gas and localization of gas pipeline areas with the purpose to provide the possibility of replacement of the lengthy defects gas pipeline section, obsolete and defective valve without emptying and blowing of gas pipeline. Theoretical and experimental researches are conducted to the motion dynamics device for localization of leak place in the stream of the transported gas to the emergency leak place and also influencing of the partial ceiling of gas pipeline by the device on the capacity of gas pipeline. Influence of the dynamic loadings is set on device's construction for localization of leak place and retainer while the device is stopped in the emergency leak place. Theoretically, the localization process of gas pipeline section is explored by the device for localization section of gas pipeline.
LIPORACE, FREDERICO DOS SANTOS. "PIPELINE TRANSPORTATION PLANNERS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8163@1.
Full textOleodutos têm um papel importante no transporte de petróleo e de seus derivados, pois são a maneira mais eficaz de transportar grandes volumes por longas distâncias. A motivação deste trabalho é que uma parte não negligenciável do preço final de um derivado de petróleo é influenciada pelo custo de transporte. Apesar disso, até onde sabemos, apenas alguns autores trabalharam neste problema específico, a maioria utilizando técnicas de programação inteira. Este trabalho analisa a utilização de técnicas de inteligência artificial, arcabouços de software e simulação discreta orientada a eventos para a construção de planejadores automáticos capazes de lidar com instâncias reais de problemas de transporte em oleodutos. A primeira contribuição dessa tese é a especificação de um novo domínio para problemas de planejamento, denominado PIPESWORLD. Este domínio é inspirado no problema de transporte em oleodutos e especificado em PDDL. Por sua estrutura original, ele foi incorporado ao benchmark oficial da 4th International Planner Competition, evento bi-anual que compara o desempenho de diversos planejadores automáticos de propósito geral. Mesmo sendo uma simplificação do problema original, o PIPESWORLD se mostra um domínio bastante desafiador para o estado da arte dos planejadores. É demonstrado também que problemas de decisão derivados de diversas configurações do Pipesworld são NP-Completos. A segunda contribuição dessa tese é o arcabouço de software PLANSIM. Este framework incorpora uma máquina de busca que pode utilizar diversas estratégias, e define uma estrutura que facilita a construção de planejadores automáticos baseados em busca heurística direta que utilizam como modelo do processo a ser planejado simuladores orientados a eventos discretos. São apresentadas instanciações do PLANSIM para a construção de planejadores para problemas clássicos de como o das Torres de Hanoi e Blocksworld. A terceira contribuição da tese é a instanciação do PLANSIM para a construção de um planejador automático capaz de tratar instâncias reais de planejamento de transporte em oleodutos, denominado PLUMBER 05. A utilização de técnicas de simulação discreta orientada a eventos para a representação do modelo do sistema a ser planejado permite que este seja bastante fiel ao problema original. Isto somado ao uso do PLANSIM facilita a construção de planejadores capazes de lidar com instâncias reais.
Pipelines have an important role in oil and its derivatives transportation, since they are the most effective way to transport high volumes through long distances. The motivation for this work is that a non negligible part of the final price for those products are due to transportation costs. Few authors have addressed this problem, with most of the previous work using integer programming techniques. This work analyses the use of Artificial Intelligence techniques, discrete event simulators and software frameworks for building automated planners that are able to deal with real-world oil pipeline transportation instances. The first contribution of this thesis is the specification of a new planning domain called PIPESWORLD. This domain is inspired by the oil pipeline transportation problem, and is defined in PDDL. Due to its original structure, the PIPESWORLD domain has been incorporated to the 4th International Planning Competition benchmark. Even being a simplification of the original problem, PIPESWORLD instances in the benchmark are challenging to state of art solvers. It is also shown that decision problems based on PIPESWORLD configurations are NP-Hard. The second contribution of this thesis is the PLANSIM opensource framework. This framework incorporates a search engine that may use several different strategies, and defines a structure that facilitates the construction of automated planners based on heuristic forward search that use discrete event simulators as the model for the process to be planned. The third contribution of this thesis is a PLANSIM instantiation that results in an automated planner able to deal with real-world oil pipeline transportation instances, called PLUMBER 2. The use of discrete event simulation techniques for the model of the system to be planned allows this model to be very close to the original problem. This, in conjunction with PLANSIM usage, facilitates the construction of planners that are able to cope with real-world instances.
Galvagni, Andrea. "Pipeline health monitoring." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/29154.
Full textHolmåker, Markus, and Magnus Woxblom. "Performance evaluation of the fixed function pipeline and the programmable pipeline." Thesis, Blekinge Tekniska Högskola, Avdelningen för programvarusystem, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2249.
Full textCornacchia, Francesco. "Theoretical and numerical models of innovative cross-sections for flexible pipelines in research and design." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Find full textVervik, Stian. "Pipeline Accidental Load Analysis." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15453.
Full textHolmboe, Dennis. "The Motion Capture Pipeline." Thesis, University of Gävle, Department of Mathematics, Natural and Computer Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-611.
Full textMotion Capture is an essential part of a world full of digital effects in movies and games. Understanding the pipelines between software is a crucial component of this research. Methods that create the motion capture structure today are reviewed, and how they are implemented in order to create the movements that we see in modern games and movies.
Mostert, Lelane. "Central oxygen pipeline failure." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86313.
Full textENGLISH ABSTRACT: Case Report - A case is described of central oxygen pipeline failure that occurred at a large academic hospital and its subsequent implications for managing the situation. Literature review - The literature review undertaken focused on the current state of affairs with regards to anaesthetic staff's knowledge of and preparedness for the management implications of central oxygen pipeline failure. The events I describe below demonstrate a significant deficiency in the staff’s understanding of and training for the crisis, which should be remedied to improve patient safety. Specific measures are suggested in the literature to prevent such incidents and guidelines are available to manage central oxygen pipeline failure. These are reviewed in this study. Recommendations - This study attempts to bring together the most critical aspects that need to be addressed to safely manage similar future incidents. Prevention should include measures to implement clearly stated disaster management plans and increased awareness with regards to the medical gas pipeline system (MGPS), simulation training, efficient alarm systems, personally conducted routine evaluations of equipment and emergency backup systems by anaesthesiologists and effective communication between hospital staff. Careful planning and successful coordination during maintenance and modification of the medical gas pipeline system, using piston-type or air-driven, rather than oxygen-driven, ventilators and optimal design of the hospital bulk oxygen system can contribute to reduce risks. In the event of central oxygen pipeline failure a specific sequence of actions should be taken by the anaesthesiologist and a clear institutional operational policy is described.
AFRIKAANSE OPSOMMING: Gevalsbeskrywing - 'n Geval van sentrale suurstoftoevoerversaking, wat plaasgevind het by 'n groot opleidingshospitaal, word bespreek. Daar word ook gekyk na die praktiese gevolge met betrekking tot die hantering van die situasie. Literatuurstudie - 'n Literatuurstudie is aangepak met die doel om te fokus op die huidige toedrag van sake betreffende narkosepersoneel se kennis en paraatheid in die hantering van sentrale suurstoftoevoerversaking. 'n Wesenlike gebrek aan begrip en opleiding aangaande hierdie onderwerp is geïdentifiseer – areas wat, met die nodige aandag, verbeter kan word ten einde die welstand van pasiënte te verseker. Spesifieke voorkomende maatreëls en hanteringsriglyne word voorgestel deur die literatuur en word gevolglik hersien in hierdie studie. Aanbevelings - Hierdie studie poog om kernaspekte aan te raak ten einde soortgelyke toekomstige voorvalle veilig en optimaal te kan hanteer. Voorkomende maatreëls behels onder meer die daarstelling van duidelik verstaanbare noodplanne, verbeterde bewustheid aangaande die mediese gaspypsisteem, simulasie-opleiding, doeltreffende alarmstelsels, effektiewe kommunikasie tussen hospitaalpersoneel, sowel as narkotiseurs wat self roetine-evaluasies van hul narkosetoebehore en -noodtoerusting uitvoer. Noukeurige beplanning en neweskikking tydens herstelwerk of werk aan die mediese gaspypsisteem, die gebruik van suierventilators (of dan lugaangedrewe in plaas van suurstofaangedrewe ventilators) en die optimale uitleg van 'n hospitaal se suurstoftoevoer, kan bydra om die risiko's te beperk. In die geval van sentrale suurstoftoevoerversaking behoort die narkotiseur stapsgewyse aksie te neem. 'n Duidelike institusionele noodbeleid word ook omskryf.
Patwardhan, Anagha. "Fast multipliers-Pipeline Wallace /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1453188901&sid=3&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Full textBischof, Stefan, Benedikt Kämpgen, Andreas Harth, Axel Polleres, and Patrik Schneider. "Open City Data Pipeline." Department für Informationsverarbeitung und Prozessmanagement, WU Vienna University of Economics and Business, 2017. http://epub.wu.ac.at/5438/1/city%2Dqb%2Dpaper.pdf.
Full textSeries: Working Papers on Information Systems, Information Business and Operations
Przygodda, Jörg. "Beitrag zur differenzierten sicherheitstechnischen Bewertung und Gestaltung moderner Rohrfernleitungsanlagen auf der Grundlage eines spezifischen Risikokonzeptes." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969337558.
Full textJohnson, Chukwuemeka Eze. "Development of a framework for Integrated Oil and gas Pipeline Monitoring and Incident Mitigation System (IOPMIMS)." Thesis, University of Wolverhampton, 2017. http://hdl.handle.net/2436/620898.
Full textHanna, Stefan. "Transparens i en deferred pipeline : ." Thesis, University of Skövde, School of Humanities and Informatics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-4083.
Full textDeferred shading är en renderingsteknik som har blivit allt mer populär i och med att hårdvaraukraven för tekniken inte längre är ett hinder. Ett problem med deferred shading är fortfarande hur transparenta objekt ska hanteras. Rapporten utvärderar två olika deferred pipelines som hanterar transparent geometri på olika sätt, de två renderingsmetoderna är Inferred Lighting samt Light Pre Pass med framåtrendering för hantering av transparent geometri.
Finley, Christopher G. "Pipeline project cumulative effects assessments." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0015/MQ42311.pdf.
Full textChan, Peter D. S. "Soil-pipeline interaction in slopes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0019/MQ49672.pdf.
Full textSouthgate, Jonathan. "Wax removal using pipeline pigs." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/2995/.
Full textTran, Vinh Cong. "Imperfect upheaval subsea pipeline buckling." Thesis, Sheffield Hallam University, 1994. http://shura.shu.ac.uk/3179/.
Full textBasu, Anirban Carleton University Dissertation Computer Science. "Study of pipeline processing systems." Ottawa, 1987.
Find full textDonaldson, Val. "Asynchronous pipeline analysis and scheduling /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9804026.
Full textMaides, Logan T. "Mocap in a 3D Pipeline." Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/honors/235.
Full textARAUJO, ANNE AGUIAR DE. "CORROSION FAILURE MANAGEMENT IN PIPELINE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=20714@1.
Full textEsta dissertação visa apresentar e comparar metodologias utilizadas para estimar a taxa de corrosão a partir dos resultados obtidos em inspeção por pig instrumentado tendo em vista que este método de avaliação de integridade é um procedimento empregado por operadores de duto. Com esta finalidade foram analisadas e comparadas as metodologias mais adequadas para o cálculo da taxa de corrosão: Estimativa da Taxa de Corrosão baseada no Princípio de Atividade Local, Estimativa da Taxa de Corrosão baseada no Cálculo do Parâmetro (a), Estimativa da Taxa de Corrosão a partir do Intervalo de Confiança para a Média e Estimativa da Taxa de Corrosão a partir da Distribuição de Valor Extremo. Para cada um destes métodos foram empregados dados simulados e dados de inspeções de um duto existente, utilizando ou não o mapeamento de anomalias por tabela, a fim de conhecer e avaliar suas vantagens e limitações. Os resultados destas comparações mostraram que apenas no caso em que a taxa de corrosão é estimada partir do intervalo de confiança para a média, a correspondência entre as anomalias (mapeamento) registradas nas inspeções ILI é obrigatória. As demais metodologias podem ser aplicadas ao conjunto de anomalias mapeadas ou a todas perdas de metal informadas no relatório de inspeção ILI. Foi verificado também que os valores estimados para a taxa de corrosão quando é realizado o mapeamento das anomalias diferem das taxas de corrosão calculadas quando a comparação dos dados entre as inspeções não é efetuada. Embora tenha-se notado esta diferença foi observado que existe uma equivalência quando comparadas as taxas de corrosão de cada grupo. Ou seja, verifica-se uma correspondência entre os valores estimados por cada metodologia ao comparar apenas os resultados das anomalias mapeadas. O mesmo ocorre quando é efetuada a comparação entre valores da taxa de corrosão obtidos apenas pelos métodos em que o mapeamento das perdas de metal não foi realizado. Adicionalmente foi efetuada a comparação entre as principais normas e publicações de gerenciamento de integridade de dutos, como o ASME B31.8S, API 1160 e Muhlbauer.
This work aims to present and compare methodologies used to estimate the corrosion rate from ILI inspection results once this integrity assessment is a procedure employed by pipeline operators. With this purpose the most appropriate methodologies for calculating the corrosion rate were analyzed and compared: Corrosion Rate Estimation based on the Principle of Local Corrosion Activity, Corrosion Rate Estimation based on the Parameter (a), Corrosion Rate Estimation from the Confidence Interval for Mean and Corrosion Rate Estimation from the Extreme Value Distribution. For each of these methods were employed simulated data and actual ILI inspection data, applying or not anomalies matching by table to identify and evaluate their advantages and limitations. The comparison has shown that the matching of the features is required only when the corrosion rate is estimated from the confidence interval methodology. The other methods can be applied to matched metal loss or all anomalies registered in ILI reported. Furthermore, it was observed that the estimated corrosion rate from the anomalies matching differ of calculated corrosion rate when matching of metal loss between ILI inspections is not done. Although this difference has been identified, it was observed an equivalence when the corrosion rates of each group were compared. In other words, there is a correspondence between the values estimated by each corrosion rate methodology when is used only the sample which represents the matched metal loss.The same occurs when the comparison is carried out between the corrosion rate values obtained only by methods where the defect mapping was not done.Moreover, a comparison between the main codes and publications for pipeline integrity management, as B31.8S ASME, API 1160 and Muhlbauer was done.
Mozere, M. "High-throughput sequencing analysis pipeline." Thesis, University College London (University of London), 2016. http://discovery.ucl.ac.uk/1528797/.
Full textLauder, Keith. "The performance of pipeline ploughs." Thesis, University of Dundee, 2010. https://discovery.dundee.ac.uk/en/studentTheses/8dba1e26-1450-4afb-9aeb-a0b1fbb77cc3.
Full textLi, Ting. "Performance Enhancement of Pipeline ADCs." Diss., North Dakota State University, 2014. https://hdl.handle.net/10365/27511.
Full textShardlow, Matthew. "Lexical simplification : optimising the pipeline." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/lexical-simplification-optimising-the-pipeline(8b56374a-bc5e-4d4d-80bc-2c2f01eed319).html.
Full textPerkins, Brian. "The Welsh Healthcare Innovation Pipeline." Thesis, Cardiff Metropolitan University, 2016. http://hdl.handle.net/10369/7869.
Full textAlqaan, Hani. "Automatic pipeline surveillance air-vehicle." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/9876.
Full textPaulo, Gomes Neto Severino. "MARRT Pipeline: Pipeline for Markerless Augmented Reality Systems Based on Real-Time Structure from Motion." Universidade Federal de Pernambuco, 2009. https://repositorio.ufpe.br/handle/123456789/2012.
Full textAtualmente, com o aumento do poder computacional e os estudos em usabilidade, sistemas de tempo real e foto-realismo, os requisitos de qualquer sistema de computador são mais complexos e sofisticados. Sistemas de Realidade Aumentada não são exceção em sua tentativa de resolver problemas da vida real do usuário com um nível reduzido de risco, tempo gasto ou complexidade de aprendizado. Tais sistemas podem ser classificados como baseados em marcadores ou livres de marcadores. O papel essencial da realidade aumentada sem marcadores é evitar o uso desnecessário e indesejável de marcadores nas aplicações. Para atender à demanda por tecnologias de realidade aumentada robustas e não-intrusivas, esta dissertação propõe uma cadeia de execução para o desenvolvimento de aplicações de realidade aumentada sem marcadores, especialmente baseadas na técnica de recuperação da estrutura a partir do movimento em tempo real
Schnorr, Randolf. "Die Gemeinschaft nach Bruchteilen : ([section][section] 741-758 BGB) /." Tübingen : Mohr Siebeck, 2004. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=012799586&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textNugroho, Wibowo Harso 1967. "Monitoring of pipeline using smart sensors." Monash University, Dept. of Mechanical Engineering, 2001. http://arrow.monash.edu.au/hdl/1959.1/9236.
Full textSockalingam, Kannan. "Error Compensation in Pipeline and Converters." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/SockalingamK2002.pdf.
Full textYing, Man Y. "System architecture for pipeline inspection gear." Thesis, University of Manchester, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548662.
Full textCheong, T. P. "Numerical modelling of soil-pipeline interaction." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597580.
Full textLiratzis, Theocharis. "Tandem gas metal arc pipeline welding." Thesis, Cranfield University, 2007. http://dspace.lib.cranfield.ac.uk/handle/1826/5686.
Full textIbrahim, A. A. "Scour around pipeline under marine environments." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371255.
Full textRiemer, Douglas P. "Modeling cathodic protection for pipeline networks." [Gainesville, Fla.] : University of Florida, 2000. http://etd.fcla.edu/etd/uf/2000/ane5967/Dissertation.pdf.
Full textTitle from first page of PDF file. Document formatted into pages; contains xxii, 263 p.; also contains graphics. Abbreviated abstract copied from student-submitted information. Vita. Includes bibliographical references (p. 252-262).
Schlenker, Thomas. "Redesign eines DLX-Prozessormodells mit Pipeline." [S.l.] : Universität Stuttgart , Fakultät Informatik, 1998. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB6783562.
Full textAbbas, Muhammad Hashim. "Modelling CO2 corrosion of pipeline steels." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3530.
Full textKasai, Takashi. "Study of Advanced Pipeline Transportation Systems." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/138503.
Full text0048
新制・課程博士
博士(工学)
甲第11552号
工博第2498号
新制||工||1339(附属図書館)
23195
UT51-2005-D301
京都大学大学院工学研究科土木システム工学専攻
(主査)教授 小野 紘一, 教授 家村 浩和, 助教授 杉浦 邦征
学位規則第4条第1項該当
Hanna, Paul Lionel. "Inertial positioning for internal pipeline surveys." Thesis, University of Nottingham, 1990. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.643559.
Full textCheuk, Chi Yin. "Soil-pipeline interaction at the seabed." Thesis, University of Cambridge, 2005. https://www.repository.cam.ac.uk/handle/1810/272147.
Full textAdel, Hussein. "Autocalibration d'un convertisseur analogique-numérique pipeline." Paris 6, 2013. http://www.theses.fr/2013PA066629.
Full textHigh resolution wideband Analog-to-Digital Converters (ADCs) in communication systems are becoming an industrial target to provide consumers with high definition and high data rate services with high degree of flexibility. Technology advances enable high speed operation on the expense of a reduced analog resolution. To benefit from technology scaling and the accompanying digital enhancements, digital calibration can be used to leverage the analog resolution at high speed, and at lower area and power consumption. In this research, a study of the analog circuit limitations in pipeline ADCs and the possible digital calibration techniques are investigated. A foreground digital calibration technique has been applied on an 11-bit ADC prototype and measurement results prove the efficiency of digital calibration in restoring the linearity of the ADC. Design considerations for digitally calibrated ADCs are then presented and validated by system and circuit simulations to enable efficient mix between analog and digital for a highly robust digital calibration. A fast split background calibration is proposed and validated by system level simulations for pipeline ADCs. The proposed calibration technique is based on a fully deterministic approach to detect and correct the circuit errors, and thus it enables high accuracy with minimum calibration time reported in literature for a background technique. This technique is further extended for a fully deterministic split multi-stage calibration in pipeline ADCs. A circuit technique is proposed to eliminate the front-end sample and hold amplifier without sacrificing the accuracy of split ADC calibration at high frequencies
Agostinho, Cornelio Manuel. "Vulnerabilità Sismica delle pipeline di idrogeno." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21999/.
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