Relevant bibliographies by topics / Production and transport systems

Academic literature on the topic 'Production and transport systems'

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Published: 30 May 2022
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Journal articles on the topic "Production and transport systems"

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Wiesinger, H. "Astroglial transport systems related to second messenger production." Neurochemistry International 21 (January 1992): Q4. http://dx.doi.org/10.1016/0197-0186(92)91798-2.

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Rohács, József, and Dániel Rohács. "TOTAL IMPACT EVALUATION OF TRANSPORTATION SYSTEMS." Transport 35, no. 2 (May 11, 2020): 193–202. http://dx.doi.org/10.3846/transport.2020.12640.

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Impact assessment, in general, includes the environmental safety and security considerations, and cost/cost-benefit analysis of the used sources. As usual, the impact is evaluated at two levels: (1) impact during operation (usage) related to a chosen operational unit (e.g., running distance [km], operational time [h] or calendar time [h]), (2) the life-cycle (project life-cycle) impact. The environmental impact is characterized by the chemical and noise emissions. Safety and security are estimated by risks. Costs are calculated based on the required financial support and caused losses. All these calculations are related to the individual vehicles or vehicles with average behaviours. The investigation of sustainability impact requires a wider evaluation and approach, for example, by also including production and recycling beside the operational aspects. This paper generalizes the impact analysis. At first, it considers all types of impacts including the direct (e.g., accidents) and indirect long-term effects (e.g., health problems caused by emissions). All the impacts are expressed as costs. The defined Sustainable Transportation Performance Index (STPI) is the Total Life-Cycle Cost (TLCC) related to the unit of transport work. As such, it combines the life-cycle emissions evaluation and transport costing methods. It contains the total operational and total impact costs. The proposed approach introduces three new specific features in the impact analysis: (1) the impact is evaluated on the transportation system level, (2) the impact is estimated as the total value (including all the related sub-systems and elements, like vehicles, transport infrastructure, transport flow control, etc.), (3) proposes a unique index to describe the total impact. The paper describes the general equations and the developed methodology for the estimation of the total impact and analyses its applicability. The preliminary results demonstrate the applicability of the defined index and its evaluation methodology. It also shows the limitations of traditional cost models. Further test results and wider application of the methodology will be provided in a series of follow up papers by the research team.
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Kornilov, S., V. Lukjanov, and A. Antonov. "Efficiency increase of complex production and transport systems management." SHS Web of Conferences 35 (2017): 01100. http://dx.doi.org/10.1051/shsconf/20173501100.

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Claussnitzer, Henry. "Fully Autonomous Transport Systems Support Digitization in Automobile Production." ATZproduction worldwide 6, no. 3 (September 2019): 38–41. http://dx.doi.org/10.1007/s38312-019-0035-6.

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SUGAMA, H., and W. HORTON. "Symmetries of and entropy production by transport in toroidal confinement systems." Journal of Plasma Physics 59, no. 4 (June 1998): 695–706. http://dx.doi.org/10.1017/s0022377898006576.

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A synthesized formulation of classical, neoclassical and anomalous transport in toroidal confinement systems with electromagnetic fluctuations and large mean flows is presented. The positive-definite entropy production rate and the conjugate flux–force pairs are rigorously defined for each transport process. The Onsager symmetries of the classical and neoclassical transport matrices are derived from the self-adjointness of the linearized collision operator. The linear gyrokinetic equation with given electromagnetic fluctuations determines the anomalous fluxes with the quasilinear anomalous transport matrix, which satisfies the Onsager symmetry.
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Praček, Stanislav. "Model for Yarn Transport Systems." Advanced Materials Research 601 (December 2012): 237–41. http://dx.doi.org/10.4028/www.scientific.net/amr.601.237.

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In textile production the yarn is being withdrawn from cross-wound packages in warping and weft insertion. During unwinding there appear forces in the yarn that are approximately proportional to the square of the unwinding velocity. During unwind the yarn tension is not constant, but it oscillates within some interval. This is especially noticeable in over-end unwinding from a static cross wound packages, where the yarn is being withdrawn with a high velocity in the direction of the package axis. Even when the yarn is not strongly stressed, so that the tension does not exceed a few percent of the breaking strength, the yarn still can break sometimes. This is why we think that a cross-wound package is not an ideal form of a package and that such packages are not always made without flaws.
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Agbiboa, Daniel E. "How Informal Transport Systems Drive African Cities." Current History 119, no. 817 (May 1, 2020): 175–81. http://dx.doi.org/10.1525/curh.2020.119.817.175.

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Kráľ, Ján, Ján Kráľ, Adrián Rjabušin, Lórant Harsányi, Kamil Madáč, and Jaroslav Melko. "Implementation of the Concorde Transport System in the Production." Applied Mechanics and Materials 683 (October 2014): 135–41. http://dx.doi.org/10.4028/www.scientific.net/amm.683.135.

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This article deals with toolpath analysis and optimization of CNC machines. There are many logistical programs used for searching of optimal toolpath between specified points. One of those logistical systems is CONCORDE. This system we have applied into CAD systems like Pro Engineer Creo E and CATIA V5. The results from comparision of each method used in mentioned CAD systems are presented in the end of this article.
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Homayouni, Seyed Mahdi, and Dalila B. M. M. Fontes. "Production and transport scheduling in flexible job shop manufacturing systems." Journal of Global Optimization 79, no. 2 (February 2021): 463–502. http://dx.doi.org/10.1007/s10898-021-00992-6.

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Yilbas, Bekir Sami. "Entropy Production During Laser Picosecond Heating of Copper." Journal of Energy Resources Technology 124, no. 3 (August 6, 2002): 204–13. http://dx.doi.org/10.1115/1.1488173.

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Nonequilibrium energy transport taking place in the surface region of the metallic substrate due to laser short-pulse heating results in entropy production in electron and lattice systems. The entropy analysis gives insight into the irreversible processes taking place in this region during the laser short-pulse heating process. In the present study, entropy production during laser shortpulse heating of copper is considered. Equations governing the nonequilibrium energy transport are derived using an electron kinetic theory approach. The entropy equations due to electron and lattice systems and coupling of these systems are formulated. The governing equations of energy transport and entropy production are solved numerically. Two pulse shapes, namely step input intensity and exponential intensity, are employed in the analysis. It is found that entropy production due to coupling process attains higher values than those produced due to electron and lattice systems. The effect of pulse shape on the entropy production inside the substrate material is significant.
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Dissertations / Theses on the topic "Production and transport systems"

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Pihnastyi, O. M., G. K. Kozhevnikov, and Tetiana Bondarenko. "The information controlling model transport system during transient conditions." Thesis, Institute of Electrical and Electronics Engineers, Inc., USA, 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/48796.

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This article is devoted to designing an information management system for the conveyor line of mining enterprises. The analytical design method for the transient mode of the stepped speed control system of the conveyor line was developed. The partial differential equation was used in constructing the conveyor line model. The description of the production system is fulfilled in the single step approximation. A decision was obtained which determines the state of the parameters of the production line for a technological position specified as a function of time. Has been determined the length of the transition period during which the initial condition for the distribution of labour objects along the conveyor affects the parameters of the state of the conveyor line. The method for calculating the current parameters of a conveyor line with the use of partial differential equations allows the design of control systems for production lines of conveyor type for transient modes. The originality of the results obtained is to improve the PDE-models of the conveyor-type production systems used to design highly efficient production control systems operating in transient modes.
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Mora-Camino, Félix. "Synthese de travaux sur l'analyse, la planification et la commande de systemes complexes de production et de transport." Toulouse 3, 1987. http://www.theses.fr/1987TOU30209.

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Euxibie, Gaillandre Edwige. "Conceptualisation de la conduite du système production-transport-consommation." Grenoble INPG, 1993. http://www.theses.fr/1993INPG0165.

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La conduite du Système-production-Transport-consommation est basée aujourd'hui sur une approche événementielle, avec affichage des informations dès qu'elles arrivent, sans tri préalable. L'opérateur effectue lui-même la synthèse de l'ensemble, et ne dispose pas d'outil prévisionnel à court ou moyen terme. Nous proposons dans le cadre de cette thèse une analyse de la conduite de l'opérateur, pour définir à partir de l'étude de phénomènes physiques bien identifiés, le diagnostic de l'état du Système associé à une proposition d'actions correctrices validées au préalable. Pour valider la détection des états liés à l'équilibre production-demande, la tension, la stabilité transitoire et les surcharges, nous avons développé un outil informatique appelé interface de Génération de Scénarios. Cet outil nous a permis de valider à partir de cas de référence la détection des états, et partir de là, nous avons proposé une solution techniquement réalisable et peu onéreuse pour la mise en oeuvre du concept de la conduite par états
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Ansari, Ali, and Emanuel Freiberg. "Supporting Strategic Decisions for Operational Changes through the use of Discrete Event Simulation : A Case Study in Production Scheduling at AstraZeneca." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-35569.

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In recent years, market competitiveness exerts more pressure on process industries to increase their number of products, reduce order sizes and shorten delivery lead time. This causes an expansion of order enquiries from customers, which leads to an insufficient use of scheduling and planning systems to meet these changes. This force process industries to adopt other tools, such as Discrete Event Simulation for supporting their strategic decisions to align with these operational changes.   The objective of this thesis is to understand how Discrete Event Simulation supports strategic decisions prior to the implementation of operational changes in process industries. Therefore, a case study in the pharmaceutical industry was conducted at AstraZeneca, Södertälje. Discrete Event Simulation was used as a tool to support the strategic decision of implementing the Product Wheel technique as an operational change. Simultaneously, a theoretical review was carried out to investigate types of strategic decisions which can be supported by Discrete Event Simulation use in process industries. Then, contributions and challenges of Discrete Event Simulation use for supporting strategic decisions for operational changes were clarified.    The empirical results indicate the importance of Discrete Event Simulation in supporting deliverability as a competitive priority to AstraZeneca, followed by flexibility and cost as second and third competitive priorities. The analysis also identified the contribution of Discrete Event Simulation in supporting long-term decisions in the company by providing analytical solutions in different scenarios, dynamic visualization and increased knowledge about the simulated operational change. Additionally, two main challenges in the use of Discrete Event Simulation for supporting strategic decision are identified. First, Discrete Event Simulation was not suitable for supporting all kinds of competitive priorities such as quality, environment and innovation. Second, the direction of the communication between the Discrete Event Simulation use and the strategic decisions differs.      A framework is developed to facilitate the use of Discrete Event Simulation for supporting strategic decisions prior to implementing the Product Wheel technique as an operational change. This framework provides a guideline to identify the range of contributions from Discrete Event Simulation use for supporting different types of competitive priorities prior to the implementation of the Product Wheel method. Generally, Discrete Event Simulation could be a useful tool for supporting deliverability, cost and flexibility by implementing the Product Wheel technique, while it has a limited capability when dealing with other strategic decisions such as quality, innovation and environment.
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Uhlhorn, Simon, and Karlaxel Ekblom. "A value stream map with focus on improving the current material and information flow : A Case study on BillerudKorsnäs Karlsborg paper production." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79900.

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Lean is a method used mainly in assembly manufacturing to streamline production by eliminating various types of waste. The use of Lean in the process industry is currently limited. Some critics say, the use of the tools in Lean is very limited, while others argue that the approach of the method needs to be adapted to the conditions that exist in the process industry. Since Lean aims to eliminate waste, there is a tool called value stream map that is used to map material and information flow to identify waste in the manufacturing industry. The thesis was conducted as a case study at BillerudKorsnäs Karlsborg's paper production, where the purpose was to investigate how value stream mapping can be applied in the paper industry, with the aim of identifying and eliminating non-value-creating activities. While performing the value stream map, several problem areas were identified within the information and material flow. The most important were considered maintenance of the production equipment as well as product and material handling. This led, among other things, to recommendations for expanding finished goods inventory and introducing better documentation, to create inventory management strategies to reduce inventory levels in material inventories. Following a value stream map, it was also concluded that the applicability of the tool was considered good since activities and problem areas could be identified synoptically.
Lean är en metod som främst används inom stycktillverkning för att kunna effektivisera produktionen genom eliminering av olika typer av slöserier. Användningen av Lean inom processindustrin är i dagsläget begränsad, somliga kritiker menar på att användandet av de verktyg som Lean erbjuder är väldigt begränsade medan andra hävdar att metodernas angreppssätt behöver anpassas efter de förutsättningar som finns inom processindustrin. Då Lean syftar till att eliminera slöserier finns det ett verktyg som heter värdeflödesanalys som används för att kartlägga material- och informationsflöde för att kunna identifiera slöserier inom tillverkningsindustrin. Examensarbetet utfördes som en fallstudie på BillerudKorsnäs papperstillverkning i Karlsborg där syftet var att undersöka hur värdeflödesanalys kan tillämpas inom pappersindustrin med målsättningen att identifiera och eliminera icke värdeskapande aktiviteter. Vid utförandet av värdeflödesanalysen identifierades en mängd problemområden inom information- och materialflödet. De mest väsentliga ansågs vara underhåll av produktionsutrustningen samt produkt- och materialhantering. Detta ledde bland annat till rekommendationer att utöka färdigvarulager samt införa bättre dokumentation, för att skapa lagerhanteringsstrategier med syfte att minska lagernivåer i materialager. Efter genomförd värdeflödesanalys kunde även slutsatserna dras att tillämpbarheten av verktyget ansågs vara god då aktiviteter och problemområden kunde identifieras på ett överskådligt sätt.
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Cruz, Cécilia. "Le transport pour compte propre, un transport routier comme un autre ? : pratiques et territoires en France depuis la déréglementation." Thesis, Cergy-Pontoise, 2011. http://www.theses.fr/2011CERG0523/document.

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La forte augmentation, depuis la fin des années 1980, des trafics transportés par les prestataires de transport (transport pour compte d'autrui) s'est traduite par une diminution de la part relative de ceux organisés par les chargeurs eux-mêmes (transport pour compte propre). Il reste cependant une part significative d'utilisateurs du transport pour compte propre. A la différence des travaux précédemment menés, cette thèse vise à étayer l'analyse de la dimension économique de l'évolution du transport pour compte propre en prenant en compte également les dimensions géographiques, sociales et juridiques. Pour appréhender les flux de transport, il s'avère nécessaire d'entreprendre une analyse des systèmes de production et de distribution et notamment les pratiques des acteurs afin de comprendre l'ensemble des mécanismes du choix modal. Cette thèse souligne l'importance de prendre en compte la dimension territoriale dans la prise de décision des entreprises.L'étude des caractéristiques de production et des organisations de transport a été permise par l'analyse quantitative des enquêtes chargeurs réalisées par l'INRETS en 1988 et 2004. La méthode qualitative a également été adoptée, en effet, des entretiens ont été réalisés auprès de responsables de transport chez les chargeurs afin de mieux saisir les conditions d'utilisation du transport pour compte propre
The large increase, since the late 1980's, in freight carried by transport providers (for-hire transport) resulted in a decrease in the share of that handled by shippers themselves (own account transport). However, there remains a significant proportion of users of transport on own account. Unlike previous work, this thesis aims to support the analysis of the economic dimension of own account transport, taking into account also the geographical, social and legal dimensions. To understand transport flows, it is necessary to undertake an analysis of the production and distribution systems, in particular the practices of actors, to understand all the mechanisms of modal choice. This thesis underlines the importance of taking into account the territorial dimension in firms' decision-making. The study of production characteristics and of transportation systems was carried out by means of a quantitative analysis of Shippers' surveys conducted by INRETS in 1988 and 2004. A qualitative approach was also adopted: interviews were conducted with transport managers of shippers to better understand the conditions for use of own-account transport
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Hagstroem, Agnes. "Prospects for continued use and production of Swedish biogas in relation to current market transformations in public transport." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259597.

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Biogas is largely utilised as vehicle fuel in public bus transport in Sweden today. This study investigates opportunities and barriers for continued domestic use and production of biogas, in relation to the ongoing electrification of public bus transport. The analysis is based on interviews with actors in public transport and the biogas sector, experts on biogas systems, and representatives for alternative user segments. Three regions were chosen as case-studies for investigations of prospects in public transport, i.e. Stockholm, Västra Götaland and Skåne, though alternative uses were studied from a national perspective. In addition to public transport, considered uses include road transport, sea transport, industries, and electricity and heat production. The study identifies a broad agreement among stakeholders that renewable resources should be implemented where they provide most benefits from a system perspective. Therefore, electric public buses are valued in urban environments, while biogas solutions are found suitable for regional routes. Biogas is further viewed as environmentally beneficial in all user segments except continuous electricity and heat production, where it largely would replace renewable rather than fossil sources. Regarding costs and competitiveness, probable future uses are identified within light and heavy-duty road transport, and in consumer-oriented industries, i.e. the food industry. Economic support in policy instruments is further considered essential for continuous development of the Swedish biogas sector, though current influential instruments, e.g. the tax exemption, are described as short-term and unpredictable. The willingness to pay for the collected societal benefits of biogas further decrease in transitions from public to private consumers, and as biogas solutions simultaneously are linked with limited or uncertain competitiveness in these sectors, risks prevail that such transitions could imply stagnations and declines in biogas use and production, given today’s situation.
Idag används biogas till stor del som drivmedel för bussar inom kollektivtrafik i Sverige. Denna studie undersöker möjligheter och hinder för en fortsatt nationell användning och produktion av biogas, i samband med att bussar inom kollektivtrafiken nu elektrifieras. Analysen är baserad på intervjuer med aktörer inom kollektivtrafiken och biogassektorn, sakkunniga inom biogas, och alternativa användare av biogas. Tre regioner, Stockholm, Västra Götaland och Skåne, valdes som fallstudier för analys av möjligheter för fortsatt användning inom kollektivtrafiken. Alternativa användningar studerades istället ur ett nationellt perspektiv, och inkluderade vägtransporter, sjöfart, industri och el- och värmeproduktion. Studien visar att det råder enighet mellan intervjupersoner att förnybara resurser över lag ska användas där de medför störst samhällsnytta sett till samhället i stort. Inom kollektivtrafiken beskrivs elbussar därför som fördelaktiga i stadsmiljöer, medan biogas ses som lämpligt i regional trafik. Biogas framställs dessutom som miljömässigt fördelaktigt i alla alternativa användningsområden utom kontinuerlig el- och värmeproduktion, eftersom då främst förnybara och inte fossila resurser ersätts. Med hänsyn till kostnader och konkurrenskraft ses lätta och tunga transporter tillsammans med kundnära industrier, t.ex. livsmedelsindustrin, som troliga framtida användningsområden för biogas. Ekonomiskt stöd från styrmedel bedöms vara nödvändigt för en fortsatt utveckling av biogassektorn i Sverige, även om dagens styrmedel, t.ex. skattebefrielsen, beskrivs som kortsiktiga och oförutsägbara. Betalningsviljan för biogasens samlade samhällsnyttor minskar också vid en övergång från offentliga till privata kunder. Eftersom biogas därtill har en begränsad eller osäker konkurrenskraft jämtemot andra alternativ i de privata segmenten, identifierar denna studie risker för stagnation eller nedgång i användning och produktion av biogas vid en eventuell utfasning från den offentliga sektorn, givet dagens situation.
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Wan, Yen-Tai. "Material transport system design in manufacturing." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-03282006-231022/.

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Thesis (Ph. D.)--Industrial and Systems Engineering, Georgia Institute of Technology, 2006.
Dr. Yih-Long Chang, Committee Member ; Dr. Martin Savelsbergh, Committee Member ; Dr. Leon McGinnis, Committee Co-Chair ; Dr. Gunter Sharp, Committee Chair ; Dr. Doug Bodner, Committee Member ; Dr. Joel Sokol, Committee Member.
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Hedberg, Daniel, and Viktor Hjärtquist. "Evaluation of AGV-systems for material handling in production. A simulation study at the rear axle assembly at Scania." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177265.

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Scania är ett företag verksamt inom fordonsindustrin och är en tillverkare av lastbilar, bussar och motorer. Fordonsindustrin står inför en förändring och Scania vill vara drivande i utvecklingen. För att kunna vara det ställs krav på flexibilitet i produktionen och i denna studie har Scanias bakaxelmontering undersökts. I dagsläget används gaffeltruckar i stor utsträckning för att transportera artiklar mellan lager, plockområde och produktionslina, vilket begränsar utformningen av plockområdet. En introduktion av Automated Guided Vehicles (AGV) möjliggör en mer flexibel utformning. Studien syftar till att utvärdera AGV:er som transportelement för lastbärare. För att göra det undersöks det hur tre olika typer av AGV:er påverkar tiden med artikelbrist vid produktionslinan relativt antal som används samt hur dessa utnyttjas. Vidare undersöks det hur olika egenskaper i ett AGV-system påverkar kötiden för transporter. Egenskaperna som undersöks är AGV:ernas hastighet, av- och pålastningstid, laddningstid och batteritid. Systemet som undersöks i studien är en del av ett produktionsområde efter en planerad ombyggnation och inga jämförelser kommer göras med systemet innan ombyggnation. En simuleringsmodell har tagits fram i ExtendSim och genom den har experiment utförts för att besvara syftet. I studien har två olika typer av experiment utförts, dels experiment där antalet AGV:er var den experimentella faktorn, dels experiment enligt faktordesign där AGV-systemets egenskaper var de experimentella faktorerna. Resultaten från experimenten visar att när antalet AGV:er ökar till en viss gräns, minskar tiden med brist vid produktionslinan och funktionen för dynamisk laddning kan utnyttjas i högre grad. Utöver detta visar resultatet från experimenten enligt faktordesign att batteritid är den enskilt viktigaste egenskapen enligt de förutsättningar experimenten utfördes under. Därefter var AGV:ernas genomsnittliga hastighet den viktigaste egenskapen följt av laddningstid och av- och pålastningstid. Slutsatsen är att när antalet AGV:er ökar, minskar tiden med brist för upp till sex AGV:er av typ 1 och typ 2 samt åtta AGV:er av typ 3. Utnyttjandegraden visar att när fler AGV:er används kan funktionen för dynamisk laddning utnyttjas i högre grad, vilket gör att de är tillgängliga i större utsträckning när transportbehov uppstår. Det har också visats att antalet AGV:er som används i systemet bör vara tillräckligt för att de aldrig ska underskrida den kritiska batterinivån. Jämförelser av den totala tiden med brist vid produktionslinan mellan olika typer av AGV:er visade att typ 1 var bättre än typ 3 när lika antal AGV:er användes. Mellan typ 2 och typ 3 kunde ingen skillnad påvisas när fler än fem AGV:er användes. När fem eller färre AGV:er användes var typ 3 bättre än typ 2. En jämförelse mellan typ 1 och typ 2 visade att typ 1 var bättre när upp till fem AGV:er användes, men att det för sex AGV:er inte gick att avgöra någon skillnad.

Examensarbetet är utfört vid Institutionen för teknik och naturvetenskap (ITN) vid Tekniska fakulteten, Linköpings universitet

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Kalita, Dipankar. "Graphène synthétisé par dépôt chimique en phase vapeur : du contrôle et de la compréhension des défauts à l'échelle atomique jusqu'à la production de dispositifs fonctionnels macroscopiques." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAY098/document.

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Si le graphène est un candidat prometteur pour de nombreuses applications, il reste des questions fondamentales à résoudre. Les objectifs de cette thèse visent à obtenir une crois- sance de graphène de haute qualité, à développer de nouveaux concepts de transfert pour réaliser de nouveaux dispositifs tout en contrôlant la formation de défauts dans sa struc- ture. Nous avons été en mesure d'augmenter la surface d'une monocouche polycristalline de graphène d'une échelle de quelques centimètres à celle d'une plaquette de silicium sans changer de chambre CVD. D'autre part, nous avons démontré une méthode permettant de diminuer la densité de nucléation et ainsi d'obtenir du graphène monocristallin de quelques centaines de microns. Concernant la réalisation de nouveaux dispositifs, nous avons obtenu des circuits à base de graphène polycristallin empilés par transferts successifs où la région de bicouche artificielle se comporte comme un bicouche intrinsèque. Nous avons également développé une nouvelle méthode pour suspendre le graphène à l'échelle macroscopique sur des supports en piliers. Dans un tel système, les contraintes dans le graphène restent in- férieures à 0,2%. Par la suite une méthode de dépôt d'électrodes par voie sèche a été développée pour éviter toute dégradation du graphène. Ce processus de transfert a été amélioré pour atteindre des tailles de substrats allant jusqu'à 4 pouces pour le silicium et le saphir. Il a été enfin utilisé comme électrode transparente d'une LED à puits quantiques pour remplacer des électrodes Ni / Au . Nous avons mis au point des procédés de création sélective de défauts sur le graphène. Tout d'abord des défauts ont été induits chimiquement de façon contrôlable et ont été analysés par spectroscopie Raman et microscopie électronique en transmission qui ont révélé un mécanisme en deux étapes de formation de défauts dans la structure de graphène. Nous avons également étudié l'effet des défauts chargés adsorbés sur la surface du graphène sans former de liaisons avec lui. Contrairement à la littérature où les particules chargées sont déposées a posteriori, les nanoparticules chargées étaient présentes pendant la croissance sur cuivre. Nous interprétons l'existence d'une bande de phonons D' très intense devant celle de la D, et encore jamais signalée avec la présence de ces nanoparticules
Though graphene is strong candidate to make various applications, still there are issues that need to be resolved. The purpose of this thesis is to grow high quality graphene and transfer it to make new graphene based devices and to engineer defects into graphene structure. We have been able to increase the growth polycrystalline monolayer graphene from few centimeter scale to wafer scale without changing the CVD chamber. At the same time, we have demonstrated a method to decrease the nucleation density which allows us to grow large single crystal graphene from few to hundreds of micrometer. Concerning new design of graphene based devices, the polycrystalline graphene was trans- ferred to create artificial bilayer crossbars where the bilayer region behaved like naturally grown bilayer graphene. We have also developed a novel method of suspending graphene in macroscopic scale in pillared surface. In such a system, the strain in graphene is found to be less than 0.2%. Thereafter a completely dry method of depositing electrodes was developed which prevents damaging of graphene. The scale and process of transferring graphene was improved to different substrates such as 4 inch Si and sapphire substrates. It was used as transparent electrode to in a quantum well LED to replace the Ni/Au electrodes. We have been able to engineer defects into graphene. Firstly defects were induced in a controllable way using chemical method and were analyzed using Raman spectroscopy and Transmission Electron Microscopy which revealed a two step mechanism of defect formation in the graphene structure. We have also studied the effect of charged defects which adsorb onto the graphene surface without forming bonds with it. Unlike in literature where charged particles were deposited onto graphene, here the charged nano particles were present dur- ing the growth process in the copper foil. We believe that due to these nano particles, the intensity of D' phonon is greatly enhanced. Such anomalously higher intensity of D' band compared to D band has not been reported before
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Books on the topic "Production and transport systems"

1

Netzer, Frithjof. Strategische Allianzen im Luftverkehr: Nachfragerorientierte Problemfelder ihrer Gestaltung. Bern: Peter Lang International Academic Publishers, 2018.

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Cevelev, Aleksandr. Material management of railway transport. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1064961.

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In the monograph reviewed the development of the inventory management of railway transport in the new economic environment of market economy. According to the results of theoretical research, innovative and production potential of the supply system of railway transport the main directions and methods of transformation of the restructuring process under the corporate changes of JSC "RZD", positioned value system of the logistics of railway transportation, and developed a classification model used logistical resources. Evaluation of activity of structural divisions of Russian Railways supply is proposed to be viewed through an integrated and comprehensive approach to the development of systems of balanced indicators of supply and prompt handling of material resources, the implementation of which allows to distribute the strategic objectives of the company "Russian Railways" activities in the system of logistics of the Railways and also to involve in economic circulation of excessive and unused inventories of material and technical resources and efficiently reallocate them among enterprises at the site of the railway. Recommendations for the implementation of the developed algorithms and models are long term in nature and are based on the concept of logistics management and improve the business processes of the logistics system. Will be useful for managers and specialists of directorates of logistics of Russian Railways supply, undergraduates and graduate students interested in the economy of railway transport.
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Cevelev, Aleksandr. The economy and material management on a railway transport. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1085329.

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In the textbook in an accessible form presented and discussed the development of the economy and the inventory management of railway transport in the new economic environment. For the first time in Russian literature, made a theoretical attempt at a comprehensive review of the effectiveness of, and satisfaction of needs in material resources structural divisions, subsidiaries and affiliates of JSC "RZD". According to the results of theoretical research, innovative and production potential of the supply system of railway transport the main directions and methods of transformation of the restructuring process under the corporate changes of JSC "RZD", positioned value system of logistics of rail transport, a comprehensive approach to the development of systems of balanced indicators of supply and prompt handling of material resources. Recommendations for the implementation of the developed algorithms and models are long term in nature and are based on the concept of logistics management improve business processes, system logistics. For students and teachers, workers of enterprises of railway transport, and others interested in questions of transport Economics.
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Cevelev, Aleksandr. Strategic development of railway transport logistics. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1194747.

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The monograph is devoted to the methodology of material and technical support of railway transport. According to the types of activities, the nature of the material and technical resources used, technologies, means and management systems, Russian railways belong to the category of high-tech industries that must have high quality and technical level, reliability and technological efficiency in operation. For this reason, the logistics system itself, both in structure and in the algorithm of the functions performed as a whole, needs a serious improvement in the quality of its work. The economic situation in Russia requires a revision of the principles and mechanisms of management based on the corporate model of supply chain management, focused on logistics knowledge. In the difficult economic conditions of the current decade, it is necessary to improve the quality of the supply organization of enterprises and structural divisions of railway transport, directly related to the implementation of the process approach, the advantage of which is a more detailed regulation of management actions and their mutual coordination. In order to increase the efficiency of its activities and develop the management system, Russian Railways is developing a lean production system aimed at further expanding the implementation of the principles of customer orientation, ideology and corporate culture. At the present time, the solution of many issues is impossible without a cybernetic approach to the formulation of problems of material and technical support and logistics analysis of information technologies, to the implementation of the developed algorithms and models of development strategies and concepts for improving the business processes of the production system. The management strategy, or the general plan for the implementation of activities for the management of material resources, is based on a fundamental assessment of the alignment and correlation of forces and factors operating in the economic and political field, taking into account the impact on the specific form of the management strategy. The materials will be useful to the heads and specialists of the directorates of the MTO, CDZs and can be used in the scientific research of bachelors, masters and postgraduates interested in the economics of railway transport and supply logistics.
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Andreychikov, Aleksandr, and Ol'ga Andreychikova. Intelligent information systems and artificial intelligence methods. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1009595.

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The textbook discusses the methods of artificial intelligence and their application to solve problems from various subject areas. Methods of acquisition, representation and processing of knowledge in intelligent systems, as well as technologies for designing and implementing intelligent systems, are described. Special attention is paid to the application of intelligent systems for the selection of collective solutions, the design of complex systems( objects), the analysis and forecasting of the enterprise. Meets the requirements of the federal state educational standards of higher education of the latest generation. For students enrolled in groups of training master's degree program "Management in technical systems", "Computer and information science", "computer science", "engineering and technology land transport", "engineering and construction technology", "Photonics, instrumentation, optical and biotechnical systems and technology", "aerospace engineering", "engineering and technologies of shipbuilding and water transport", and also in the areas of "automation of technological processes and productions", "mechatronics and robotics".
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Cevelev, Aleksandr. Material resource management. Material and technical support (railway transport). ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1524028.

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The textbook presents the theoretical and practical issues of the methodology of material and technical support, as well as the developing provisions of the academic disciplines "Material Resource Management" and "Logistics of supply" of railway transport. Such issues as the concept of strategic management, breakthrough transformations in the supply system, quality management, lean manufacturing, process approach, logistics analysis and cybernetics of business technologies, development strategies, management innovations based on the ARIS modeling environment, production inventory management in railway transport, and many others are considered in detail. It is intended for students studying in the areas of "Management", "Economics", as well as for all those interested in the economics of railway transport and supply logistics. It will be useful for managers and specialists of JSC "Russian Railways".
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Bright, John. Pit ponies. London: Batsford, 1986.

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Murav'ev, Dmitriy, Aleksandr Rahmangulov, Nikita Osincev, Sergey Kornilov, and Aleksandr Cyganov. The system "seaport - "dry" port". ru: INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1816639.

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The monograph presents an approach to solving the problem of increasing the throughput and processing capacity of seaports in conditions of limiting their territorial dislocation and increasing the unevenness of external and internal cargo flows. The basis of the approach is the proposed system of the main parameters of the dry port and the methodology of simulation modeling of the functioning of the system "seaport - dry port". The material is illustrated with examples of the implementation of the developed approach, including model scenarios of multi-agent optimization of the parameters of the system under study. The proposed approach and the developed methodology can be used to justify management decisions on the balanced development of transport and logistics infrastructure of the regions hosting sea and dry ports. It is intended for specialists of transport and logistics companies, engineering and technical workers engaged in solving problems in the field of logistics, supply chain management and transport infrastructure design. In addition, it is recommended to students in the following programs: postgraduate studies 23.06.01 "Land transport engineering and technology" (focus "Transport and transport-technological systems of the country, its regions and cities, organization of production in transport") and 27.06.01 "Management in technical systems" (focus "Management of transportation processes"); master's degree 23.04.01 "Technology of transport processes" (profile "Organization of transportation and management in a single transport system"); bachelor's degree 38.03.02 "Management" (profile "Logistics") and 23.03.01 "Technology of transport processes".
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Rodrigues, Louis J. Military airlift: Status of the C-17 development program : statement of Louis J. Rodrigues, Director, Systems Development and Production Issues, National Security and International Affairs Division, before the Legislation and National Security Subcommittee, Committee on Government Operations, House of Representatives. Washington, D.C: The Office, 1993.

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Méndez, Vicenç, Sergei Fedotov, and Werner Horsthemke. Reaction–Transport Systems. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11443-4.

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Book chapters on the topic "Production and transport systems"

1

de Alencar Nääs, Irenilza, Nilsa Duarte da Silva Lima, Manoel Eulálio Neto, and Gilson Tristão Duarte. "Selecting the Sustainable Fresh Food Surface Transport Array Using Analytic Hierarchy Process." In Advances in Production Management Systems. Artificial Intelligence for Sustainable and Resilient Production Systems, 655–60. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85902-2_70.

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Gonzalez-Feliu, Jesus, Florence Toilier, Christian Ambrosini, and Jean-Louis Routhier. "Estimated Data Production for Urban Goods Transport Diagnosis." In Sustainable Urban Logistics: Concepts, Methods and Information Systems, 113–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31788-0_7.

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Homayouni, S. Mahdi, and Dalila B. M. M. Fontes. "A MILP Model for Energy-Efficient Job Shop Scheduling Problem and Transport Resources." In Advances in Production Management Systems. Artificial Intelligence for Sustainable and Resilient Production Systems, 378–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85874-2_40.

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Zhang, Guoxiang, Jeroen Snippe, Esra Inan-Villegas, and Paul Taylor. "Modeling High-Temperature, High-Pressure, High-Salinity and Highly Reducing Geochemical Systems in Oil and Gas Production." In Reactive Transport Modeling, 237–317. Chichester, UK: John Wiley & Sons, Ltd, 2018. http://dx.doi.org/10.1002/9781119060031.ch5.

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de Oliveira, Cristina Corrêa, Danilo Medeiros de Castro, Nélio Fernando dos Reis, João Gilberto Mendes dos Reis, and Jair Minoro Abe. "Priority Modes of Transport for Soybeans from the Center-West Region in Brazil." In Advances in Production Management Systems: Innovative Production Management Towards Sustainable Growth, 324–31. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-22756-6_40.

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Villamaina, Dario. "The Effects of Memory on Linear Response and Entropy Production." In Transport Properties in Non-Equilibrium and Anomalous Systems, 35–61. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01772-3_3.

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Machado, Sivanilza Teixeira, Irenilza de Alencar Naas, João Gilberto Mendes dos Reis, Rodrigo Couto Santos, Fabiana Ribeiro Caldara, and Rodrigo Garófallo Garcia. "Logistics Issues in the Brazilian Pig Industry: A Case-Study of the Transport Micro-Environment." In Advances in Production Management Systems: Innovative Production Management Towards Sustainable Growth, 136–43. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-22756-6_17.

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Khrutba, Viktoriia O., Vadym I. Zyuzyun, Oksana V. Spasichenko, Nataliia O. Bilichenko, Waldemar Wójcik, Aliya Tergeusizova, and Orken Mamyrbaev. "Application of System Analysis for the Investigation of Environmental Friendliness of Urban Transport Systems." In Biomass as Raw Material for the Production of Biofuels and Chemicals, 213–19. London: Routledge, 2021. http://dx.doi.org/10.1201/9781003177593-19.

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Mula, Josefa, Manuel Díaz-Madroñero, and David Peidro. "A Conceptual Model for Integrating Transport Planning: MRP IV." In Advances in Production Management Systems. Value Networks: Innovation, Technologies, and Management, 54–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33980-6_7.

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Jost, Jana, Thomas Kirks, Michael Fiolka, and Stuart Chapman. "Sociotechnical Design of Industrial Transport Vehicle and its Interaction with Humans in Manufacturing Systems." In Advances in Manufacturing, Production Management and Process Control, 36–48. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94196-7_4.

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Conference papers on the topic "Production and transport systems"

1

Popov, Alexey, Olga Suslova, and Egor Budyukin. "Synergy in the «Production-Transport-Consumption» System." In 2020 2nd International Conference on Control Systems, Mathematical Modeling, Automation and Energy Efficiency (SUMMA). IEEE, 2020. http://dx.doi.org/10.1109/summa50634.2020.9280830.

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Popov, Alexander P., Tatiana A. Popova, Alexey A. Krapostin, and Mikhail Yu Kulikov. "Application of Information Systems for Optimization of Intelligent Production Systems." In 2019 International Conference "Quality Management, Transport and Information Security, Information Technologies" (IT&QM&IS). IEEE, 2019. http://dx.doi.org/10.1109/itqmis.2019.8928327.

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Wischnewski, R., and J. Rossmann. "Modelling of Track Bound Transport Systems for the Virtual Production." In Modelling and Simulation. Calgary,AB,Canada: ACTAPRESS, 2010. http://dx.doi.org/10.2316/p.2010.696-042.

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Nealer, Rachael, Christopher L. Weber, Chris Hendrickson, and H. Scott Matthews. "Modal freight transport required for US goods and services production." In 2010 IEEE International Symposium on Sustainable Systems and Technology (ISSST). IEEE, 2010. http://dx.doi.org/10.1109/issst.2010.5507756.

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Sherman, Joseph, Eric Pitcher, Ralph Stevens, and Paul Allison. "H− beam neutralization measurements in a solenoidal beam transport system." In Production and neutralization of negative ions and beams. AIP, 1992. http://dx.doi.org/10.1063/1.44814.

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Dhib, Soumaya, Mounir Elleuch, and Ahmed Frikha. "Evaluation of AGV system in flexible production system: A simulation study." In 2013 International Conference on Advanced Logistics and Transport (ICALT). IEEE, 2013. http://dx.doi.org/10.1109/icadlt.2013.6568508.

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Inaudi, Daniele, and Branko Glisic. "Fiber Optic Sensing for Innovative Oil and Gas Production and Transport Systems." In Optical Fiber Sensors. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/ofs.2006.fb3.

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Marcotulli, Amedeo, and David Wilkinson. "Systems Engineering of Subsea Production Systems." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/31827-ms.

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Abstract Subsea production systems (SPS) are widely used throughout the upstream oil and gas industry, and can range in complexity from simple, single well tiebacks, in shallow water, through to multi-well developments (involving subsea processing), linked back to purpose-built host facilities, in deep water and/or harsh environments. As the complexity (and cost) of the SPS being deployed has increased over the past few decades, the requirement for a more rigorous and systematic approach toward the engineering of such systems has increased. Whilst it is true that many SPS are based on "industry standard" components (when viewed at a sufficiently granular level), the reality is that every SPS is in some way unique, primarily due to the large number of boundary conditions that drive the design – be it the reservoir characteristics, produced fluid properties, water depth, seabed topography/soil conditions, environmental conditions, etc. SPS are also somewhat unusual in the upstream oil and gas industry, insofar as they typically involve the transport of multiphase flowstreams over relatively long distances, which directly impacts the complexity of the system. The inherent complexity of managing multiphase flowstreams (and/or operating subsea processing facilities) using remotely operated equipment, leads to systems where many elements of the design are "tightly coupled", as a minor change in one part of the system has the potential to significantly impact the design and operation of another part of the system, even though these "system components" may be widely separated physically. Similarly, complex systems used in other industries have been found to greatly benefit from the application of formal systems engineering (SE) processes. Whilst it is acknowledged that SE has been informally practiced in the upstream oil and gas industry for many years, the approach has typically been relatively unstructured as the various SE processes are scattered throughout existing engineering and project management processes, and therefore the SE is performed in a sub-optimal manner. Systems engineering practitioners, such as they are, have learned the trade over many years of multidisciplinary experience and have developed the holistic top-down thinking required, but to date there are no publically available documents that provide specific guidance on the systems engineering of subsea production systems. A systems engineering guidance document, specifically written to be applicable to SPS, is currently being developed by members of API Sub-Committee 17 and will soon be available. The publication of this document is intended to advance the understanding of SE theory and to foster more efficient and rigorous implementation of the various SE processes, in order to improve project outcomes. The objective of this paper is to make potential users of the guidance document aware of its existence and of the benefits associated with the use of formal systems engineering processes when designing complex facilities. The guidance document will be in the format of a Technical Report and therefore is not intended to be directive in nature, and can be tailored for use as seen fit by the Project Management Team and systems engineering personnel using it.
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Marcotulli, Amedeo, and David Wilkinson. "Systems Engineering of Subsea Production Systems." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/31827-ms.

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Abstract Subsea production systems (SPS) are widely used throughout the upstream oil and gas industry, and can range in complexity from simple, single well tiebacks, in shallow water, through to multi-well developments (involving subsea processing), linked back to purpose-built host facilities, in deep water and/or harsh environments. As the complexity (and cost) of the SPS being deployed has increased over the past few decades, the requirement for a more rigorous and systematic approach toward the engineering of such systems has increased. Whilst it is true that many SPS are based on "industry standard" components (when viewed at a sufficiently granular level), the reality is that every SPS is in some way unique, primarily due to the large number of boundary conditions that drive the design – be it the reservoir characteristics, produced fluid properties, water depth, seabed topography/soil conditions, environmental conditions, etc. SPS are also somewhat unusual in the upstream oil and gas industry, insofar as they typically involve the transport of multiphase flowstreams over relatively long distances, which directly impacts the complexity of the system. The inherent complexity of managing multiphase flowstreams (and/or operating subsea processing facilities) using remotely operated equipment, leads to systems where many elements of the design are "tightly coupled", as a minor change in one part of the system has the potential to significantly impact the design and operation of another part of the system, even though these "system components" may be widely separated physically. Similarly, complex systems used in other industries have been found to greatly benefit from the application of formal systems engineering (SE) processes. Whilst it is acknowledged that SE has been informally practiced in the upstream oil and gas industry for many years, the approach has typically been relatively unstructured as the various SE processes are scattered throughout existing engineering and project management processes, and therefore the SE is performed in a sub-optimal manner. Systems engineering practitioners, such as they are, have learned the trade over many years of multidisciplinary experience and have developed the holistic top-down thinking required, but to date there are no publically available documents that provide specific guidance on the systems engineering of subsea production systems. A systems engineering guidance document, specifically written to be applicable to SPS, is currently being developed by members of API Sub-Committee 17 and will soon be available. The publication of this document is intended to advance the understanding of SE theory and to foster more efficient and rigorous implementation of the various SE processes, in order to improve project outcomes. The objective of this paper is to make potential users of the guidance document aware of its existence and of the benefits associated with the use of formal systems engineering processes when designing complex facilities. The guidance document will be in the format of a Technical Report and therefore is not intended to be directive in nature, and can be tailored for use as seen fit by the Project Management Team and systems engineering personnel using it.
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10

Emelvanov, Artur I., and Ramilva R. Savchuk. "Automated Control System for Electrical Equipment in Production." In 2020 International Conference on Quality Management, Transport and Information Security, Information Technologies (IT&QM&IS). IEEE, 2020. http://dx.doi.org/10.1109/itqmis51053.2020.9322919.

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Reports on the topic "Production and transport systems"

1

ABRAMCZYK, GLENN. Simulation of a Production Facility with an Automated Transport System. Office of Scientific and Technical Information (OSTI), April 2004. http://dx.doi.org/10.2172/822823.

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Skone, Timothy J. Switchgrass, Production and Transport. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509208.

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Matenga, Chrispin, and Munguzwe Hichaambwa. A Multi-Phase Assessment of the Effects of COVID-19 on Food Systems and Rural Livelihoods in Zambia. Institute of Development Studies (IDS), December 2021. http://dx.doi.org/10.19088/apra.2021.039.

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COVID-19 was declared a pandemic by the World Health Organization in March 2020. The speed with which the pandemic spread geographically, and the high rate of mortality of its victims prompted many countries around the world to institute ‘lockdowns’ of various sorts to contain it. While the global concern in the early months following the emergence of COVID-19 was with health impacts, the ‘lockdown’ measures put in place by governments triggered global socioeconomic shocks as economies entered recessions due to disruption of economic activity that the ‘lockdown’ measures entailed. Data suggests that the socioeconomic shocks arising from ‘lockdowns’ have been more severe in sub-Saharan Africa countries, generating dire livelihood consequences for most citizens who depend on the informal economy for survival. In Zambia, the effects of COVID-19 combined with a severe drought, and a decline in mining activity to contribute to a downward spiral in Zambia’s economy. This report aims to gain real-time insights into how the COVID-19 crisis was unfolding in Zambia and how rural people and food and livelihood systems were responding. The study focused on documenting and understanding the differential impacts of the pandemic at the household level in terms of changes in participation in farming activities, availability of services for agricultural production, labour and employment, marketing and transport services, food and nutrition security and poverty and wellbeing.
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Barefoot, Susan F., Bonita A. Glatz, Nathan Gollop, and Thomas A. Hughes. Bacteriocin Markers for Propionibacteria Gene Transfer Systems. United States Department of Agriculture, June 2000. http://dx.doi.org/10.32747/2000.7573993.bard.

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The antibotulinal baceriocins, propionicin PLG-1 and jenseniin G., were the first to be identified, purified and characterized for the dairy propionibaceria and are produced by Propionibacterium thoenii P127 and P. thoenii/jensenii P126, respectively. Objectives of this project were to (a) produce polyclonal antibodies for detection, comparison and monitoring of propionicin PLG-1; (b) identify, clone and characterize the propionicin PLG-1 (plg-1) and jenseniin G (jnG) genes; and (3) develop gene transfer systems for dairy propionibacteria using them as models. Polyclonal antibodies for detection, comparison and monitoring of propionicin PLG-1 were produced in rabbits. Anti-PLG-1 antiserum had high titers (256,000 to 512,000), neutralized PLG-1 activity, and detected purified PLG-1 at 0.10 mg/ml (indirect ELISA) and 0.033 mg/ml (competitive indirect ELISA). Thirty-nine of 158 strains (most P. thoenii or P. jensenii) yielded cross-reacting material; four strains of P. thoenii, including two previously unidentified bacteriocin producers, showed biological activity. Eight propionicin-negative P127 mutants produced neither ELISA response nor biological activity. Western blot analyses of supernates detected a PLG-1 band at 9.1 kDa and two additional protein bands with apparent molecular weights of 16.2 and 27.5 kDa. PLG-1 polyclonal antibodies were used for detection of jenseniin G. PLG-1 antibodies neutralized jenseniin G activity and detected a jenseniin G-sized, 3.5 kDa peptide. Preliminary immunoprecipitation of crude preparations with PLG-1 antibodies yielded three proteins including an active 3-4 kDa band. Propionicin PLG-1 antibodies were used to screen a P. jensenii/thoenii P126 genomic expression library. Complete sequencing of a cloned insert identified by PLG-1 antibodies revealed a putative response regulator, transport protein, transmembrane protein and an open reading frame (ORF) potentially encoding jenseniin G. PCR cloning of the putative plg-1 gene yielded a 1,100 bp fragment with a 355 bp ORF encoding 118 amino acids; the deduced N-terminus was similar to the known PLG-1 N-terminus. The 118 amino acid sequence deduced from the putative plg-1 gene was larger than PLG-1 possibly due to post-translational processing. The product of the putative plg-1 gene had a calculated molecular weight of 12.8 kDa, a pI of 11.7, 14 negatively charged residues (Asp+Glu) and 24 positively charged residues (Arg+Lys). The putative plg-1 gene was expressed as an inducible fusion protein with a six-histidine residue tag. Metal affinity chromatography of the fused protein yielded a homogeneous product. The fused purified protein sequence matched the deduced putative plg-1 gene sequence. The data preliminarily suggest that both the plg-1 and jnG genes have been identified and cloned. Demonstrating that antibodies can be produced for propionicin PLG-1 and that those antibodies can be used to detect, monitor and compare activity throughout growth and purification was an important step towards monitoring PLG-1 concentrations in food systems. The unexpected but fortunate cross-reactivity of PLG-1 antibodies with jenseniin G led to selective recovery of jenseniin G by immunoprecipitation. Further refinement of this separation technique could lead to powerful affinity methods for rapid, specific separation of the two bacteriocins and thus facilitate their availability for industrial or pharmaceutical uses. Preliminary identification of genes encoding the two dairy propionibacteria bacteriocins must be confirmed; further analysis will provide means for understanding how they work, for increasing their production and for manipulating the peptides to increase their target species. Further development of these systems would contribute to basic knowledge about dairy propionibacteria and has potential for improving other industrially significant characteristics.
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Skone, Timothy J. Corn Grain, Production and Transport. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509151.

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Skone, Timothy J. Diesel, Production, Transport, and Refining. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509155.

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Skone, Timothy J. Petroleum, Foreign, Production and Transport. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509181.

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Skone, Timothy J. Gasoline, Production, Transport, and Refining. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509170.

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Skone, Timothy J. Corn Stover, Production and Transport. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1509153.

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Bartolotta, Anna, Charles McLean, Y. Tina Lee, and Albert Jones. Production Systems Engineering:. Gaithersburg, MD: National Institute of Standards and Technology, 1998. http://dx.doi.org/10.6028/nist.ir.6154.

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