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Добірка наукової літератури з теми "Transport Engineering"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 6 вересня 2023

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Статті в журналах з теми "Transport Engineering"

Carreón-Rodríguez, Ofelia E., Guillermo Gosset, Adelfo Escalante, and Francisco Bolívar. "Glucose Transport in Escherichia coli: From Basics to Transport Engineering." Microorganisms 11, no. 6 (June 15, 2023): 1588. http://dx.doi.org/10.3390/microorganisms11061588.

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Escherichia coli is the best-known model for the biotechnological production of many biotechnological products, including housekeeping and heterologous primary and secondary metabolites and recombinant proteins, and is an efficient biofactory model to produce biofuels to nanomaterials. Glucose is the primary substrate used as the carbon source for laboratory and industrial cultivation of E. coli for production purposes. Efficient growth and associated production and yield of desired products depend on the efficient sugar transport capabilities, sugar catabolism through the central carbon catabolism, and the efficient carbon flux through specific biosynthetic pathways. The genome of E. coli MG1655 is 4,641,642 bp, corresponding to 4702 genes encoding 4328 proteins. The EcoCyc database describes 532 transport reactions, 480 transporters, and 97 proteins involved in sugar transport. Nevertheless, due to the high number of sugar transporters, E. coli uses preferentially few systems to grow in glucose as the sole carbon source. E. coli nonspecifically transports glucose from the extracellular medium into the periplasmic space through the outer membrane porins. Once in periplasmic space, glucose is transported into the cytoplasm by several systems, including the phosphoenolpyruvate-dependent phosphotransferase system (PTS), the ATP-dependent cassette (ABC) transporters, and the major facilitator (MFS) superfamily proton symporters. In this contribution, we review the structures and mechanisms of the E. coli central glucose transport systems, including the regulatory circuits recruiting the specific use of these transport systems under specific growing conditions. Finally, we describe several successful examples of transport engineering, including introducing heterologous and non-sugar transport systems for producing several valuable metabolites.

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Zefreh, Mohammad Maghrour, and Ádám Török. "DISTRIBUTION OF TRAFFIC SPEED IN DIFFERENT TRAFFIC CONDITIONS: AN EMPIRICAL STUDY IN BUDAPEST." Transport 35, no. 1 (March 18, 2020): 68–86. http://dx.doi.org/10.3846/transport.2019.11725.

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Fundamental diagram, a graphical representation of the relationship among traffic flow, speed, and density, has been the foundation of traffic flow theory and transportation engineering for many years. Underlying a fundamental diagram is the relation between traffic speed and density, which serves as the basis to understand system dynamics. Empirical observations of the traffic speed versus traffic density show a wide-scattering of traffic speeds over a certain level of density, which would form a speed distribution over a certain level of density. The main aim of the current research is to study on the distribution of traffic speed in different traffic conditions in the urban roads since the distribution of traffic speed is necessary for many traffic engineering applications including generating traffic in micro-simulation systems. To do so, the traffic stream is videotaped at various locations in the city of Budapest (Hungary). The recorded videos were analysed by traffic engineering experts and different traffic conditions were extracted from these recorded videos based on the predefined scenarios. Then their relevant speeds in that time interval were estimated with the so-called “g-estimator method” using the outputs of the available loop detectors among the videotaped locations. Then different parametric candidate distributions have been fitted to the speeds by Maximum Likelihood Estimation (MLE) method. Having fitted different parametric distributions to speed data, they were compared by three goodness-of-fit tests along with two penalized criteria (Akaike Information Criterion – AIC and Bayesian Information Criterion – BIC) in order to overcome the over-fitting problems. The results showed that the speed of traffic flow follows exponential, normal, lognormal, gamma, beta and chisquare distribution in the condition that traffic flow followed over-saturated congestion, under saturated flow, free flow, congestion, accelerated flow and decelerated flow respectively.

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Petrescu, Relly Victoria Virgil, Raffaella Aversa, Antonio Apicella, and Florian Ion Petrescu. "Transportation Engineering." Engevista 19, no. 5 (December 4, 2017): 1284. http://dx.doi.org/10.22409/engevista.v19i5.967.

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Анотація:

The shipments were absolutely necessary at all times, but still have polluted and damaged the environment. The technique of transport or the engineering of transport is the application of the principles of technology and scientific findings to the planning, design check, operation and plan management for any mode of transport, in order to ensure that the conditions of safety, efficiency, quick, comfortable and convenient, economic and environmentally compatible movement of persons and goods (transport). It is a sub-discipline for civil engineering. The importance of the transport engineering in the framework of the profession of civil engineering can be evaluated by the number of divisions of the ASCE (American Society of Civil Engineers), which are directly related to the transport. There are six such divisions (Aerospace; Air Transport, motorways, pipes, watercourses, port, of coastal and ocean and urban transport), which represents one third of the total 18 technical divisions of the ASCE (1987). Humanity is struggling between technological tests of deployment of new types of mild transport for the environment and the need to maintain still in the operation the machines already polluting products in large quantity, cheaper, more convenient economically, that customers have already been accustomed. Transport is at the heart of major cross-cutting issues that are inseparable from issues related to the development and sustainable management of the mobility of goods and people. The automotive sector must meet several challenges to reduce the emission of particulate and gaseous pollutants while limiting the increase in the cost of vehicles. The development of "clean" or "sustainable" vehicles requires the integration of innovative technologies to meet all these requirements. Those all problems need to be addressed by the discipline named Transportation (Transport) Engineering, in view of the constantly improving the quality of transport carried out.

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Wang, Xinxin, Zeshui Xu, Zijing Ge, Edmundas Kazimieras Zavadskas, and Paulius Skačkauskas. "AN OVERVIEW OF A LEADER JOURNAL IN THE FIELD OF TRANSPORT: A BIBLIOMETRIC ANALYSIS OF “COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING” FROM 2000 TO 2019." Transport 35, no. 6 (January 6, 2021): 557–75. http://dx.doi.org/10.3846/transport.2020.14140.

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Computer-Aided Civil And Infrastructure Engineering (CACAIE) is an international journal, and the first documents was published from 1980. This article is to make an overview based on bibliometric analysis to celebrate the 35th anniversary of CACAIE till 2019. At present, 1045 publications can be indexed in the Clarivate Analytics Web of Science (WoS) from 2000 to 2019, and we explore the characteristics of these publications by bibliometric methods and tools (VOSviewer and CiteSpace). First, the fundamental information of publications is given with the help of some bibliometric indicators, such as the number of citations and h-index. According to high-citing and high-cited publications, we analyse that who pays closer attention to the journal and what the journal most focuses on considering sources, countries/regions, institutions and authors. After that, the influential countries/regions and references are presented, and collaboration networks are given to show the relationship among countries/regions, institutions and authors. In order to understand the development trends and hot topics, co-occurrence analysis and timeline view of keywords are made to be visual. In addition, publications in four fields – Construction & Building Technology; Engineering, Civil; Transportation Science & Technology; Computer Science, Interdisciplinary Applications – that CACAIE refers are summarized, and further discussions are made for the journal and scholars. Finally, some main findings are concluded according to all analysis. This article provides a certain reference for scholars and journals to further research and promote the scientific-technological progress.

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Kulikova, O. V., I. N. Pirogova, E. G. Filippova, N. O. Borisova, and I. V. Kulikova. "OFFLINE AND ONLINE MATH LEARNING OF ENGINEERING STUDENTS IN TRANSPORT UNIVERSITY." European Journal of Natural History, no. 2 2022 (2022): 22–26. http://dx.doi.org/10.17513/ejnh.34253.

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SCHELL, TORBEN, MARK SADGROVE, KEN'ICHI NAKAGAWA, and SANDRO WIMBERGER. "ENGINEERING TRANSPORT BY CONCATENATED MAPS." Fluctuation and Noise Letters 12, no. 02 (June 2013): 1340004. http://dx.doi.org/10.1142/s021947751340004x.

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We present a generalized kick rotor model in which the phase of the kick can vary from kick to kick. This additional freedom allows one to control the transport in phase space. For a specific choice of kick-to-kick phases, we predict novel forms of accelerator modes which are potentially of high relevance for future experimental studies.

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Heydecker, B. G., C. Small, and A. Poulovassilis. "Deductive databases for transport engineering." Transportation Research Part C: Emerging Technologies 3, no. 5 (October 1995): 277–92. http://dx.doi.org/10.1016/0968-090x(95)00011-7.

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Mandrusiak, Gary D. "Transport phenomena in thermal engineering." Experimental Thermal and Fluid Science 9, no. 4 (November 1994): 466–67. http://dx.doi.org/10.1016/0894-1777(94)90024-8.

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Yu, Kitae, Junhyo Kim, Jungpil Noh, Sunchul Huh, Byeongkeun Choi, Hanshik Chung, and Hyomin Jeong. "Analysis of laminar nanofluid forced convection heat transport through the CFD." International Journal of Engineering Research and Science 3, no. 8 (August 31, 2017): 69–75. http://dx.doi.org/10.25125/engineering-journal-ijoer-aug-2017-19.

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Rossolov, Alexander, Vitalii Naumov, Nadezhda Popova, Ekaterina Vakulenko, and Olena Levchenko. "ESTIMATION OF TRANSPORT ACCESSIBILITY IN CASE OF RATIONAL TRANSPORT HUB LOCATION." Transport 36, no. 1 (February 24, 2021): 1–12. http://dx.doi.org/10.3846/transport.2021.14299.

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The public transit accessibility has become an important attribute of social and economic activity of contemporary society. The shift to the sustainable paradigm of the current cities’ development has made public transport the basic mean for population travels execution. The spatial character of the travels in the megapolises supposes its implementation with the transfers. This may result in the travel time increase if the transport hubs are designed or located inefficiently. In some cases, the transport hub locations do not reflect the current demand for public transport services and require the fulfilment of the infrastructure measures. The paper presents the Hub Location Problem (HLP) solving in the case of rapid transit and trolleybus lines interaction. It has been proposed the combined criterion for the HLP solving based on the two-dimensional coordinate system with the estimation of passenger walk turnover. The simulation procedure to estimate the transport hub relocation has been made in the PTV VISUM software in the case of the Industrial District of Kharkiv City (Ukraine). The results of the economic effect available from the transport hub rational location have been estimated.

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Більше джерел

Дисертації з теми "Transport Engineering"

Jaržemskis, Andrius. "Logistikos veiksnių įtakos transporto srautų pasiskirstymui tyrimas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20041216_102159-77986.

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Pasaulio ekonomikos augimas, spartėjantis globalizacijos procesas, technologijų pažanga didina atstumus tarp žaliavų gavimo, gamybos ir pagamintų prekių naudojimo taškų. Gausėjant prekybinių ryšių bei plečiantis jų geografijai, didėja reikalavimai transporto ir logistikos paslaugas teikiančiam sektoriui. Regionų ekonominis augimas priklauso nuo to, kaip transporto sistema geba patenkinti žaliavų tiekėjų, gamintojų, prekybininkų ir vartotojų logistikos poreikius laiko, greičio, saugumo, sąnaudų prasmėmis. Transporto srautai ilgainiui prisitaiko prie kintamų regiono logistikos poreikių, tačiau dėl transporto sistemos inertiškumo tam sugaištama laiko. Lietuvoje reikšminga dalis bendrojo nacionalinio produkto sukuriama transporto ir logistikos sektoriuje, kadangi šalis yra stambių tranzitinių krovinių srautų kryžkelėje. Lietuvai tapus Europos Sąjungos nare, atsiveria tarptautinės prekybos augimo galimybes, Lietuva tampa Europos Sąjungos buferine zona prekybai su Rytų bloko šalimis, taigi teisinga Lietuvos transporto sistemos plėtros strategija gali suteikti Lietuvai didžiulį ekonominį potencialą, bendrojo vidaus produkto ir darbo vietų skaičiaus augimo perspektyvas. Transporto srautams užtikrinti būtina transporto infrastruktūra, kurios plėtrai yra labai svarbu nustatyti potencialius krovinių srautus. Transporto infrastruktūra labai imli kapitalui, todėl jos plėtros kryptys turi tiksliai atitikti logistikos poreikius, priešingu atveju milžiniškos investicijos nepateisinamos... [to full text]
Relevance of the dissertation is determined by the object of research – the influence of logistical factors on transport flows distribution. The growth of world economics, business globalization, progress in technology skills extends the distances between geographical points of raw materials resources, manufacturers and consumers. Due to the membership in the European Union (EU) Lithuania has got new opportunities for international trade growth, and all the Eastern Baltic countries have become the buffer region for the EU trading with the countries of the Eastern Europe and Asia. A proper transport policy and infrastructure development would increase significantly the GNP in warehousing, transport and distribution sectors. Forecasting of potential transport flows according to logistical requirements of freight suppliers is most important for transport network optimization. Scientific problem. Contemporary transport engineering theory approaches the peculiarities of transport flows formation too narrowly, only as an analysis of internal factors determining freight flows. There is no analysis of external factors. Many researchers assume that transport flows are determined only by the existing transport network and its characteristics. Other researchers consider transport flows as a result of logistic elements only. The estimating of internal and external logistical factors provides a possibility to forecast the transport flows. Aim of the research is to create a model of... [to full text]

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Jaržemskis, Andrius. "The research of the influence of logistical factors on transport flows distribution." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20041216_141558-30742.

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Анотація:

Relevance of the dissertation is determined by the object of research – the influence of logistical factors on transport flows distribution. The growth of world economics, business globalization, progress in technology skills extends the distances between geographical points of raw materials resources, manufacturers and consumers. Due to the membership in the European Union (EU) Lithuania has got new opportunities for international trade growth, and all the Eastern Baltic countries have become the buffer region for the EU trading with the countries of the Eastern Europe and Asia. A proper transport policy and infrastructure development would increase significantly the GNP in warehousing, transport and distribution sectors. Forecasting of potential transport flows according to logistical requirements of freight suppliers is most important for transport network optimization. Scientific problem. Contemporary transport engineering theory approaches the peculiarities of transport flows formation too narrowly, only as an analysis of internal factors determining freight flows. There is no analysis of external factors. Many researchers assume that transport flows are determined only by the existing transport network and its characteristics. Other researchers consider transport flows as a result of logistic elements only. The estimating of internal and external logistical factors provides a possibility to forecast the transport flows. Aim of the research is to create a model of... [to full text]
Pasaulio ekonomikos augimas, spartėjantis globalizacijos procesas, technologijų pažanga didina atstumus tarp žaliavų gavimo, gamybos ir pagamintų prekių vartojimo taškų. Lietuva tapusi Europos Sąjungos nare, tampa Europos Sąjungos buferine zona prekybiniams mainams su Rytų Europos ir Azijos šalimis. Lietuvos transporto sistemą būtina pritaikyti esamiems ir potencialiems tarptautiniams krovinių srautams aptarnauti. Transporto srautų formavimosi išorinių veiksnių nustatymas ir įvertinimas Lietuvos transporto strategijoje gali suteikti šaliai didžiulį ekonominį potencialą.

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Volpe, Adua <1996&gt. "Protein engineering for drug transport." Master's Degree Thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/20470.

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Negli ultimi anni, le nanoparticelle sono emerse come nuovi vettori promettenti per la somministrazione di terapie e farmaci. Le molecole naturali, come le proteine, sono un ottimo sostituto dei polimeri sintetici comunemente impiegati nella sintesi di nanoparticelle grazie alla loro sicurezza, biodisponibilità, biocompatibilità, biodegradabilità e bassissima tossicità. Inoltre la loro sintesi è ecologica e non prevede l'utilizzo di sostanze chimiche tossiche. I sistemi di somministrazione più utilizzati sono quelli basati su proteine naturali, come l'albumina sierica umana. L'albumina sierica umana è la proteina più abbondante nel corpo umano con una lunga emivita. La sua struttura caratteristica consente il legame multiplo di sostanze terapeutiche sulla sua superficie, rendendo l'HSA la proteina più utilizzata e prominente per i sistemi di somministrazione di farmaci a base di proteine. È noto che l'HSA tende ad accumularsi all'interno del sito del tumore o nei tessuti infiammati a causa del trasporto mediato dal recettore. Lo scopo di questa tesi era cercare di ingegnerizzare l'albumina sierica umana per i sistemi di somministrazione di farmaci. Alcuni studi hanno rivelato che gli oligomeri di HSA, in un certo intervallo di dimensioni, sembrano molto promettenti come carrier per le terapie. Infatti, grazie alla loro dimensione specifica, l'assorbimento da parte del fegato e la distruzione da parte del sistema immunitario sono notevolmente ridotti o evitati. Questa tesi illustra la proteina impiegata (albumina sierica umana) e i metodi utilizzati nella generazione di oligomeri proteici, come la clonazione, la tecnica di assemblaggio di Gibson, l'elettroforesi su gel.

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Kahkeshan, Siavoche. "Marine log supply : a transport engineering analysis." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/27117.

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This thesis investigates the marine transport-inventory system of Coastal British Columbia. The intrinsic characteristics of marine log transportation in this region are the vulnerability of marine transportation to adverse weather conditions and the presence of time-related economic costs. The system is confined to the Powell River operation. Three origins, one storage area and three pulp log types are considered. The formulated problem is classified as a sequential decision-making process. A deterministic model using the network flow theory and a simulation model using GPSS are developed. Due to considerable uncertainty in the system operation, the computer simulation model is selected. The model includes all of the important system variables and their interactions and assesses alternative operational doctrines by calculating variation in a key aspect of system performance, total logistic cost. It is found that: 1) the use of barges as the transportation mode leads to the least logistic cost, 2) the second best transportation alternative is the direct shipment of logs from origins to the mill and 3) if higher value saw log is considered, the log-taxi alternative may become attractive. However, to improve the capability of the developed model, more information on the salt contamination and teredo damage and accurate estimation of cost consequences of a mill shutdown are required. Future works should focus on these areas.
Applied Science, Faculty of
Civil Engineering, Department of
Graduate

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Tylleman, Benoît. "Molecular engineering of anthradithiophenes for charge transport." Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209650.

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L’électronique organique est un nouveau domaine de recherche qui combine les propriétés électriques de l’électronique avec les propriétés mécanique des matériaux organiques. De nouvelles applications telles que des écrans flexibles, de l’éclairage de surface ou des cellules photovoltaïques flexibles, qui ne sont pas possible avec l’électronique basée sur le silicium, sont envisagées. Les semi-conducteurs organiques sont les matériaux clés de ces dispositifs électroniques. Pour le design moléculaire, deux paramètres doivent être optimisés :l’énergie de réorganisation qui doit être minimisée et l’intégrale de transfert qui doit être maximisée. Avec un noyau aromatique rigide et étendu, les acènes linéaires tels que le pentacène et les anthradithiophènes (ADT) possèdent des énergies de réorganisation parmi les plus petites. Quant à l’intégrale de transfert, son intensité va dépendre de l’arrangement moléculaire qui ne peut malheureusement pas encore être prédit. Divers substituents peuvent être introduit sur le noyau aromatique afin de moduler l’arrangement moléculaire et ainsi maximiser l’intégrale de transfert.

Durant cette thèse, nous nous sommes intéressés à l’amélioration du transport de charge des anthradithiophènes par design moléculaire. Deux approches ont été envisagées :l’approche moléculaire et l’approche macromoléculaire. L’approche moléculaire se base sur les travaux de Takimiya sur les naphtodithiophènes. Dans ces travaux, il est montré que la mobilité de charge est supérieure lorsque l’isomère anti est utilisé plutôt que l’isomère syn. Les anthradithiophènes sont généralement utilisés en tant que mélange d’isomères syn et anti ;ceci est une conséquence de la voie de synthèse utilisée. Il est raisonnable de penser qu’utiliser des ADT isomériquement purs donnera des mobilités de charge plus élevées, à l’instar des naphtodithiophènes. Le premier objectif de cette thèse est donc de développer une méthodologie permettant d’obtenir des ADT isomériquement purs. L’approche macromoléculaire est basée sur les travaux théoriques d’Antoine Van Vooren sur le couplage électronique via pont éthylène (non conjugué). Selon ces calculs, le couplage électronique entre deux noyaux aromatiques est plus important lorsqu’ils sont reliés par un pont éthylène que lorsqu’ils sont indépendants. Le second objectif de cette thèse est de développer une méthodologie qui permet d’attacher deux ADTs via a pont éthylène.

Une stratégie de synthèse menant à l’anti-ADT a été développée. La quantité d’anti-ADT disponible via cette méthodologie est assez faible. Par conséquent, une autre méthodologie a été développée. En fonctionnalisant un des intermédiaires de réaction, il est possible de séparer les deux isomères et ainsi d’obtenir de plus grandes quantités d’anti-ADT et de syn-ADT. Les spectres d’absorption UV-vis du mélange et des différents isomères ont été comparés. Des études sur des dispositifs électroniques utilisant des ADT isomériquement purs sont en cours.

Une stratégie de synthèse menant à l’ADT ponté a été développée. Dans cette stratégie, le pont éthylène est synthétisé en premier et les entités anthradithiophènes générées dans un deuxième temps. L’ADT ponté a été obtenu à l’état de traces, détectées uniquement par spectrométrie de masse. Des efforts synthétique supplémentaire sont nécessaire afin d’obtenir l’ADT ponté dans des quantités suffisantes pour fabriquer des dispositifs électroniques. La fabrication de dispositifs électroniques est une étape cruciale dans la détermination de l’impact du pont sur la mobilité de charge.

Doctorat en Sciences
info:eu-repo/semantics/nonPublished

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Oliveira, Daliana Damaceno Gil de 1972. "Implantação integrada de infraestruturas de transportes : Caso do rodoanel e ferroanel no trecho norte, em São Paulo." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258372.

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Анотація:

Orientador: Carlos Alberto Bandeira Guimarães
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo
Made available in DSpace on 2018-08-26T04:42:12Z (GMT). No. of bitstreams: 1 Oliveira_DalianaDamacenoGilde_M.pdf: 964791 bytes, checksum: 7035668583ec53d4289bd006d1fa2a90 (MD5) Previous issue date: 2014
Resumo: Os estudos de implantação do Trecho Norte dos empreendimentos Rodoanel e Ferroanel, com traçados próximos, pode potencializar e viabilizar uma série de ações conjuntas, como o compartilhamento das plataformas de terraplenagem em alguns segmentos, otimizando as interferências, drenagem, tratamentos de solos moles, contenções, obras de proteção ambiental, remanejamento de interferências, adequações funcionais dos sistemas viários lindeiros e áreas de apoio, além de procurar minimizar as necessidades de desapropriações e reassentamentos complementares aos previstos para o Rodoanel, reduzindo de forma significativa os custos em relação a hipótese dos empreendimentos a serem implantados independentemente. Este trabalho, utilizando como suporte metodológico o estudo de caso, estuda a integração dos modais rodoviários e ferroviários e a apresenta as alternativas das implantações nas formas isoladas e faz um comparativo da possibilidade de compatibilização das implantações das linhas férreas com a rodovia. E apresenta como resultado, uma opção para os problemas de infraestrutura de transporte no Brasil, a possibilidade de se pensar em uma integração na construção dos vários modais básicos
Abstract: The implantation studies of road and rail ring roads in São Paulo can enhance and facilitate a series of joint actions , such as sharing of earthwork in some segments platforms , optimizing interference , drainage, soft soil treatment , containment , protection works environmental , relocation interference , functional adaptations of the bordering road systems and support areas , and seek to minimize the needs of expropriation and resettlement complementary to that provided to the Beltway , significantly reducing costs in relation to the hypothesis of projects to be implemented independently . This work , using as methodological support the case study examines the integration of road and rail modes and presents alternative deployments in isolated forms and makes a comparison of the possibility of compatibility between implementations of the railways with the highway . And as a result has an option for the problems of transportation infrastructure in Brazil , the possibility of thinking about integration in the construction of several basic modes
Mestrado
Transportes
Mestra em Engenharia Civil

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Stavrinidou, Eleni. "Understanding and engineering ion transport in conducting polymers." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2013. http://tel.archives-ouvertes.fr/tel-00968227.

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Many organic electronic and bioelectronics devices rely on mixed (electronic and ionic) transport within a single organic layer. Although electronic transport in these materials is relatively well understood, a fundamental understanding of ion transport is missing. I developed a simple analytical model that describes ion transport in a planar junction between an electrolyte and a conducting polymer film. The model leads to predictions of the temporal evolution of drift length of ions and current. These predictions are validated by numerical simulations and by using realistic parameters, I show that the analytical model can be used to obtain the ion mobility in the film. Furthermore, I developed an experimental method which allows the application of the analytical model and leads to a straightforward estimation of the ion drift mobilities in conducting polymers. PEDOT:PSS was found to support efficient transport of common ions, consistent with extensive swelling of the film in water. Crosslinking the film decreased its swelling and the ion mobility. Understanding the high correlation of hydration and ionic conductivity enables us to engineer materials with high and defined ion mobilities. As an example tuning of ion mobility by adjusting the relative ratio of the hydroscopic phase to PEDOT:TOS is presented. Finally I performed electrochemical impedance spectroscopy during a moving front experiment, in order to give a physical interpretation of the impedance spectra at a conducting polymer/electrolyte junction.

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Akyol, Fatih. "Nanoscale Electron Transport Engineering for GaN Optoelectronic Devices." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462897011.

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ZERO, ENRICO. "Systems engineering approaches to safety in transport systems." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1064736.

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During driving, driver behavior monitoring may provide useful information to prevent road traffic accidents caused by driver distraction. It has been shown that 90% of road traffic accidents are due to human error and in 75% of these cases human error is the only cause. Car manufacturers have been interested in driver monitoring research for several years, aiming to enhance the general knowledge of driver behavior and to evaluate the functional state as it may drastically influence driving safety by distraction, fatigue, mental workload and attention. Fatigue and sleepiness at the wheel are well known risk factors for traffic accidents. The Human Factor (HF) plays a fundamental role in modern transport systems. Drivers and transport operators control a vehicle towards its destination in according to their own sense, physical condition, experience and ability, and safety strongly relies on the HF which has to take the right decisions. On the other hand, we are experiencing a gradual shift towards increasingly autonomous vehicles where HF still constitutes an important component, but may in fact become the "weakest link of the chain", requiring strong and effective training feedback. The studies that investigate the possibility to use biometrical or biophysical signals as data sources to evaluate the interaction between human brain activity and an electronic machine relate to the Human Machine Interface (HMI) framework. The HMI can acquire human signals to analyse the specific embedded structures and recognize the behavior of the subject during his/her interaction with the machine or with virtual interfaces as PCs or other communication systems. Based on my previous experience related to planning and monitoring of hazardous material transport, this work aims to create control models focused on driver behavior and changes of his/her physiological parameters. Three case studies have been considered using the interaction between an EEG system and external device, such as driving simulators or electronical components. A case study relates to the detection of the driver's behavior during a test driver. Another case study relates to the detection of driver's arm movements according to the data from the EEG during a driver test. The third case is the setting up of a Brain Computer Interface (BCI) model able to detect head movements in human participants by EEG signal and to control an electronic component according to the electrical brain activity due to head turning movements. Some videos showing the experimental results are available at https://www.youtube.com/channel/UCj55jjBwMTptBd2wcQMT2tg.

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Kim, Wonjung Ph D. Massachusetts Institute of Technology. "Optimal transport strategies." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79309.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 103-112).
It is generally presupposed that the shapes and mechanisms encountered in nature have evolved in such a way as to maximize the robustness of a species. However, most such optimization problems arising in biology are sufficiently complex that it is neither clear what is being optimized, nor what are the relevant constraints. We here consider a number of natural fluid transport systems that may be framed in terms of constrained optimization problems. We first examine natural drinking strategies. We classify the drinking strategies of a broad range of creatures according to the principal forces involved, and present physical pictures for each style. Simple scaling arguments are developed and tested against existing data. While suction is the most common drinking strategy, various alternative styles have evolved among creatures whose morphological, physiological and environmental constraints preclude it. Many small creatures rely on relatively subtle capillary effects for fluid uptake. Particular attention is given to nectar drinking strategies. Nectar drinkers must feed quickly and efficiently due to the threat of predation. While the sweetest nectar offers the greatest energetic rewards, the sharp increase of viscosity with sugar concentration makes it the most difficult to transport. An optimal sugar concentration is thus expected for which the energy intake rate is maximized. An extensive data set indicates that the sugar concentration that optimizes energy transport depends exclusively on the drinking technique employed. We identify three nectar drinking techniques: active suction, capillary suction, and viscous dipping and rationalize the reported optimal concentrations for each through consideration of the appropriate constrained optimization problem. Blood flow in vertebrates and phloem flow in plants are known to be optimized for efficient transport of oxygen and sugar, respectively. Efficient transport of material is similarly advantageous in engineered transport systems such as traffic and wireless networks. We thus develop a general framework for determining the concentration that maximizes the material flow in a number of transport systems.
by Wonjung Kim.
Ph.D.

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Книги з теми "Transport Engineering"

Transport, engineering, and architecture. Oxford: Architectural Press, 2003.

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Oliveira, Antonella Carvalho de, ed. Collection: Applied transport engineering: -. Brazil: Atena Editora, 2022.

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Brian, Williams. Transport technology. London: Evans, 2008.

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Advanced mobility and transport engineering. London: ISTE, 2012.

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Hammadi, Slim, and Mekki Ksouri, eds. Advanced Mobility and Transport Engineering. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2012. http://dx.doi.org/10.1002/9781118561973.

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A, O'Flaherty Coleman, ed. Transport planning and traffic engineering. London: Arnold, 1997.

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Environmental transport processes. New York: Wiley, 1999.

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Sir, Cartledge Bryan, ed. Transport and the environment. New York: Oxford University Press, 1996.

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A, Vanoni Vito, and American Society of Civil Engineers. Task Committee for the Preparation of the manual on sedimentation., eds. Sedimentation engineering. Reston, VA: American Society of Civil Engineers, 2006.

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Wang, Liqiu. Advances in Transport Phenomena 2010. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011.

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Частини книг з теми "Transport Engineering"

Plawsky, Joel L. "Macroscopic or Engineering Balances." In Transport Phenomena Fundamentals, 491–548. Fourth edition. | Boca Raton : CRC Press, [2019] | Series: Chemical industries: CRC Press, 2020. http://dx.doi.org/10.1201/9781315113388-11.

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Bruley, Duane F. "Tissue Engineering." In Oxygen Transport to Tissue XI, 857–58. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-5643-1_97.

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Glasstone, Samuel, and Alexander Sesonske. "Energy Transport." In Nuclear Reactor Engineering, 501–88. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2083-2_2.

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Glasstone, Samuel, and Alexander Sesonske. "Energy Transport." In Nuclear Reactor Engineering, 501–88. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-7525-2_9.

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Diplas, P., R. Kuhnle, J. Gray, D. Glysson, and T. Edwards. "Sediment Transport Measurements." In Sedimentation Engineering, 307–53. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/9780784408148.ch05.

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Jevremovic, Tatjana. "Neutron Transport." In Nuclear Principles in Engineering, 377–489. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-85608-7_8.

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Xu, Wei-Jun, and Feng-Xuan Zhuo. "Transport Ship." In Encyclopedia of Ocean Engineering, 1–9. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-10-6963-5_28-1.

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Xu, Wei-Jun, and Feng-Xuan Zhuo. "Transport Ship." In Encyclopedia of Ocean Engineering, 1997–2005. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-10-6946-8_28.

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Razeghi, Manijeh. "Quantum Transport." In Fundamentals of Solid State Engineering, 513–53. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75708-7_16.

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Ahrens, Gritt, Torsten Dellmann, Stefan Gies, Markus Hecht, Hamid Hefazi, Rolf Henke, Stefan Pischinger, Roger Schaufele, and Oliver Tegel. "Transport Systems." In Springer Handbook of Mechanical Engineering, 1011–147. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-30738-9_13.

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Тези доповідей конференцій з теми "Transport Engineering"

Lee, S. J., H. Kim, S. N. Amirkhanian, and K. W. Kim. "Prediction of engineering properties of recycled aged rubberized mixes using GPC." In URBAN TRANSPORT 2008. Southampton, UK: WIT Press, 2008. http://dx.doi.org/10.2495/ut080461.

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Kamaruddin, I., A. Soelistijo, and M. Napiah. "A comparison of the engineering properties of gap-graded and well-graded road bituminous mixtures." In URBAN TRANSPORT 2010. Southampton, UK: WIT Press, 2010. http://dx.doi.org/10.2495/ut100251.

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Zakirova, A. R., N. V. Lugaskova, and K. B. Kuznetsov. "Electromagnetic safety in transport engineering." In THE 6TH INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT, EPIDEMIOLOGY AND INFORMATION SYSTEM (ICENIS) 2021: Topic of Energy, Environment, Epidemiology, and Information System. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0102990.

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Bos, A. J., L. M. Leusink, and F. J. Melger. "Strain Analyses and Fatigue Engineering In Heavy Lift Transportation and Towages - Safeplan." In Marine Heavy Transport & Lift. RINA, 2005. http://dx.doi.org/10.3940/rina.hea.2005.11.

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Rosario, Roberto D., Juland A. Padilla, Neil Gabriel Bonto, Rommel C. De Mesa, and Orlean G. Dela Cruz. "Value engineering on car curbing ownership in metro Manila." In TRANSPORT, ECOLOGY - SUSTAINABLE DEVELOPMENT: EKOVarna2022. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0162414.

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Uchiyama, C., W. J. Munro, and K. Nemoto. "Environmental engineering for quantum energy transport." In 2018 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2018. http://dx.doi.org/10.7567/ssdm.2018.ps-9-17.

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Yu, Shilong, Libin Mu, and Bin Ji. "On Green Transport and Low Carbon Transport." In Third International Conference on Transportation Engineering (ICTE). Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41184(419)505.

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Bosshard, Hans Felix R., Tony Rey R. Escalona, Ivan Henderson V. Gue, and Jerome D. Lopena. "Development of undergraduate thesis courses for the BS-mechanical engineering program of FEU tech." In TRANSPORT, ECOLOGY - SUSTAINABLE DEVELOPMENT: EKOVarna2022. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0162560.

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Nam, Woochul, and Bogdan I. Epureanu. "Collective Transport by Multiple Molecular Motors." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-71226.

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Kinesin is a processive molecular motor that transports various cellular cargoes by converting chemical energy into mechanical movements. Although the motion of a single molecule has been characterized in several studies, the dynamics of collective transports remains unresolved. Since the fluctuating load acting on each motor is an important factor in the collective transport, the relation between the varying force and the chemical reaction of kinesin is considered using a stochastic mechanistic model. Several metrics are developed to measure the correlation among the motion of the motors, the force distribution, and the power loss. It is shown that both large external load and stiff cargo linkers cause highly correlated motions of motors. However, these correlated motions do not lead to faster collective transport.

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"Committees: 1st Virtual International Conference on Humanities, Education, Sciences, Management, Engineering and Technology (ICHESMET) 2021." In TRANSPORT, ECOLOGY - SUSTAINABLE DEVELOPMENT: EKOVarna2022. AIP Publishing, 2023. http://dx.doi.org/10.1063/12.0020306.

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Звіти організацій з теми "Transport Engineering"

Leburton, Jean-Pierre. Quantum Transport and Scattering Time Engineering in Nanostructures. Fort Belvoir, VA: Defense Technical Information Center, November 2002. http://dx.doi.org/10.21236/ada413484.

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Ziade, Elbara, Elbara Ziade, Khalid Hattar, and Khalid Hattar. Tunable Thermal Transport across Interfaces via Phonon Engineering. Office of Scientific and Technical Information (OSTI), November 2019. http://dx.doi.org/10.2172/1763287.

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Bachand, George David, and Amanda Carroll-Portillo. Engineering intracellular active transport systems as in vivo biomolecular tools. Office of Scientific and Technical Information (OSTI), November 2006. http://dx.doi.org/10.2172/899371.

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Steefel, Carl, Jonny Rutqvist, Chin-Fu Tsang, Hui-Hai Liu, Eric Sonnenthal, Jim Houseworth, and Jens Birkholzer. Reactive Transport and Coupled THM Processes in Engineering Barrier Systems (EBS). Office of Scientific and Technical Information (OSTI), August 2010. http://dx.doi.org/10.2172/988174.

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KLEM, M. J. Engineering evaluation of transfer and transport concepts applicable to sludge treatment project. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/782296.

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MCDONALD, F. N. Engineering Study on Particulate Deposition Losses in Generic Stack Sampler Transport Lines. Office of Scientific and Technical Information (OSTI), November 2002. http://dx.doi.org/10.2172/808402.

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Mahalingam, V., K. Sampath, S. Aldrin, and T. Nadeau. MPLS Transport Profile (MPLS-TP) Traffic Engineering (TE) Management Information Base (MIB). RFC Editor, February 2015. http://dx.doi.org/10.17487/rfc7453.

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Parkman, Chris. High volume transport: Rapid assessment of research gaps in road engineering and technical aspects. Evidence on Demand, September 2014. http://dx.doi.org/10.12774/eod_hd.jan2014.parkman.

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Ganapol, B. D., and D. E. Kornreich. Analytical three-dimensional neutron transport benchmarks for verification of nuclear engineering codes. Final report. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/505359.

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Shen, S. Engineering Specification Document (ESD) of X-ray Vacuum Transport System (XVTS) for LCLS XTOD. Office of Scientific and Technical Information (OSTI), January 2006. http://dx.doi.org/10.2172/928202.

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