Academic literature on the topic 'Production Process'

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Journal articles on the topic "Production Process"

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Rebenko, V. I. "Technological basis for process control of production of poultry production." Naukovij žurnal «Tehnìka ta energetika» 11, no. 1 (January 30, 2020): 61–66. http://dx.doi.org/10.31548/machenergy2020.01.061.

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Sahan, Melek. "Three dimensional perception and production process." New Trends and Issues Proceedings on Humanities and Social Sciences 2, no. 1 (February 19, 2016): 61–67. http://dx.doi.org/10.18844/gjhss.v2i1.278.

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PS, Sellero. "Quality Management, Production Process, Innovation and Productivity." Open Access Journal of Waste Management & Xenobiotics 2, no. 3 (2019): 1–3. http://dx.doi.org/10.23880/oajwx-16000124.

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This paper aims to analyse quality management systems, production process, innovation and productivity of manufacturing firms. In order to obtain that, we have taken into account aspects such as product standardization, the use of quality management systems, the complexity of the production system and some con siderations on technological innovation.
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Dümmler, Jörg, Sven Gehre, and Gudula Rünger. "Modeling and Verification of Production Process Chains." International Journal of Computer Theory and Engineering 6, no. 4 (2014): 346–52. http://dx.doi.org/10.7763/ijcte.2014.v6.887.

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Prentice, I. Colin. "Process and production." Nature 363, no. 6426 (May 1993): 209–10. http://dx.doi.org/10.1038/363209a0.

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OKUDA, Mitsuo, Tatsuya UEMATSU, and Akira BABA. "Studies of Potato Starch Production Process. (1). Production Process Equations." NIPPON SHOKUHIN KAGAKU KOGAKU KAISHI 45, no. 6 (1998): 375–80. http://dx.doi.org/10.3136/nskkk.45.375.

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SUCIU, Cristina, and Marioara TULPAN. "Production Process and Indicators of Production Systems." Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 42, no. 1 (March 15, 2019): 48–51. http://dx.doi.org/10.35219/mms.2019.1.08.

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Pukharenko, Yu V., V. A. Norin, and M. K. Krylova. "Production of concrete products: production process modeling." Вестник гражданских инженеров 15, no. 1 (2018): 97–104. http://dx.doi.org/10.23968/1999-5571-2018-15-1-97-104.

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Johtela, Tommi, Jouni Smed, Mika Johnsson, Risto Lehtinen, and Olli Nevalainen. "Supporting production planning by production process simulation." Computer Integrated Manufacturing Systems 10, no. 3 (July 1997): 193–203. http://dx.doi.org/10.1016/s0951-5240(97)00008-6.

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Bołoz, Łukasz, Antoni Kalukiewicz, Greg Galecki, Liubomyr Romanyshyn, Taras Romanyshyn, and Rafael Barrionuevo Giménez. "Conical Pick Production Process." New Trends in Production Engineering 3, no. 1 (August 1, 2020): 231–40. http://dx.doi.org/10.2478/ntpe-2020-0019.

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AbstractOne of the basic methods of mechanical rock mining is cutting, which faces increasingly difficult working conditions. Despite the rapid development of machines used in underground and opencast mining as well as in tunnel building, construction industry and road engineering, the problem of insufficient durability of mining tools remains unsolved. In addition to drilling and, to a lesser extent, planing, cutting provides a huge market for tools. Currently, the process of cutting is mainly based on conical picks. The cutterheads of cutting machines are equipped with several dozen, and frequently – more than one hundred conical picks, which, due to their workability and abrasiveness, sometimes work only a few hours. There is a market demand for over two hundred models of conical picks. This is due to the huge variety of shapes and sizes of picks as well as the methods of their mounting in the holder. The article briefly presents various solutions of conical picks, their construction, methods of protection, dimensions and materials used. Next, based on materials produced by ZWM Carbonex, the classic method of their manufacture using the turning technology has been described. The authors have also presented briefly the use of die forging for the large-scale production of picks, applied by Górnicza Fabryka Narzędzi Sp. z o.o.
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Dissertations / Theses on the topic "Production Process"

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Saliba, Ninos. "Standardization of a production process." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-39865.

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Löfroth, Jaime, and Samuel Wiklund. "A Multivariate Process Analysis on a Paper Production Process." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-149283.

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A big challenge in managing large scale industry processes, like the ones in the paper and pulp industry, is to reduce the amount of downtime and reduce sources of product quality variability to a minimum, while staying cost effective. To accomplish this the key is to understand the complex nature of the processes variables, and to quantify the causal relationships between them and the product quality together with the amount of output. Paper and pulp industry processes consist mainly of chemical processes and the relatively low cost of sensors today enables collection of huge amounts of data, both variables and observations on frequent time intervals. These masses of data usually come with the intrinsic problem of multicollinearity which requires efficient multivari- ate statistical tools for the extraction of useful insights among the noise. One goal in this multivariate situation is to breakthrough the noise and find a relatively small subset of variables that are important, that is, variable selection. The purpose with this master thesis is to help SCA Obbola, a large paper manu- facturer that have had a variable production output, to come up with conclusions that can help them ensure a long term high production quantity and quality. We apply different variable selection approaches that have proven successful in the literature. The results that we get are of mixed success, but we manage to find both variables that SCA Obbola knows affect specific response variables, but also variables that they find interesting for further investigation.
En stor utmaning när det gäller att hantera storskaliga industriprocesser, som i pappers- och massaindustrin, är att minska tiden för driftstopp och reducera källor till varia- tioner i produktkvalitén till ett minimum, och samtidigt vara kostnadseffektiv. För att uppnå detta är det viktigt att förstå processvariablernas komplexa natur och att kvantifiera orsakssambanden mellan dem och produktkvaliteten tillsammans med pro- duktionsmängden. Pappers- och massasindustrin består huvudsakligen av kemiska pro- cesser och den relativt låga kostnaden för sensorer idag möjliggör insamling av stora mängder data, både variabler och observationer inom frekventa tidsintervall. Med des- sa datamängder får man ofta problem med multikollinearitet, vilket kräver effektiva multivariata statistiska verktyg för att extrahera användbara insikter bland bruset. Ett mål i denna multivariata situation är att bryta igenom bruset och hitta en relativt liten delmängd variabler som är viktiga, det vill säga variabel selektion. Syftet med denna masteruppsats är att hjälpa SCA Obbola, en stor pappersprodu- cent som har haft ett varierat produktionsutfall, att komma fram till slutsatser som kan hjälpa dem att säkerställa en långsiktig hög produktionskvantitet och kvalitet. Vi tillämpar olika metoder för variabel selektion, som har visat sig framgångsrika i lit- teraturen. Resultaten av arbetet är av blandad framgång, men vi lyckas hitta både variabler som SCA Obbola vet påverkar specifika responser, men även variabler som de tycker är intressanta för vidare utredning.
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Chew, Ryan W. (Ryan Wayne). "Process improvements during production ramp-up." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39589.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; in conjunction with the Leaders for Manufacturing Program at MIT, 2007.
Includes bibliographical references (p. 62-63).
Raytheon Company is currently ramping up production radars for a fighter aircraft. This product is doubling production in the next year to meet customer demand; however, the program has not been able to meet the current demand schedule for the radar. In addition, the cost of producing this radar is over the budgeted amount. Management is pushing cost and cycle time reductions on every piece of the radar, a task the team is diligently working to accomplish. The main focus of this project is one sub-assembly of the AESA radar system, the "coldwall", a heat sink that also provides the base structure by which all of the radar sensing equipment is connect to. The coldwall also acts as a heat sink, reducing the internal temperature of the radar assembly, thereby improving the fidelity of the radio frequency signal and longevity of the system itself. Currently, the cycle time to manufacture the coldwall is on average twice the planned cycle time and the cost is three times the budgeted amount. This thesis provides a case in which a process improvement investigation takes place under tight budgetary and time constraints in ramp-up mode.
(cont.) The goal of this thesis is to develop a case for accurate and complete data collection to help future process improvement decisions. The act of focusing this investigation was cumbersome due to the lack of data available on the process. In addition, the case study shows a situation where proactive issue resolution and active waste elimination could alleviate the stress incurred by cost over runs and delayed product shipments.
by Ryan W. Chew.
S.M.
M.B.A.
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Ballot, Francis. "Bacterial production of antimicrobial biosurfactants." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2250.

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Thesis (MScEng (Process Engineering))--University of Stellenbosch, 2009.
Surfactants are compounds that reduce interfacial surface tension, resulting in detergency, emulsifying, foaming and dispersing properties. Surfactants produced via biochemical processes (biosurfactants) form a niche market with their low toxicity, biodegradability and high specificity attributes. Biosurfactants have recently received considerable attention owing to their potential as biomedical molecules. In this study a knowledge base was established for the development of a process which produces biosurfactants for use as antimicrobial agents. Specifically, rhamnolipid biosurfactants were produced from Pseudomonas aeruginosa and tested for antimicrobial activity against target organisms. Accurate and reproducible analyses for the quantification of rhamnolipids and antimicrobial activity were developed. The amount of rhamnolipid was determined indirectly by measuring the rhamnose concentration. A novel HPLC method as well as an orcinol colorimetric method were developed for rhamnose measurement. In order to obtain accuracy with the orcinol method it was found that samples must be extracted at least three times prior to the analysis. An examination of literature on rhamnolipid production showed that many studies used colorimetric methods without extraction. Antibacterial activity was quantified by zone clearing around wells of supernatant in soft agar containing the target organism Mycobacterium aurum. This target organism is especially important in a South African context, since it is used to indicate possible susceptibility of tuberculosis to antibiotics. This method was developed for antibacterial testing, after a standard disk diffusion method proved to be ineffective. Antifungal activity of rhamnolipids was evaluated against the fungus Botrytis cinerea, by growing a lawn of fungus on a plate and adding rhamnolipid. The factors influencing rhamnolipid production were studied by growing different Pseudomonas aeruginosa strains from the ATCC culture collection, namely ATCC 9027 and ATCC 27853 as well as a locally isolated strain under different media conditions. The initial focus was on production of biosurfactants in media containing glucose as substrate. Alkanes were subsequently investigated as an alternative substrate, since they are readily available in South Africa as byproducts from the petrochemical industry. The rhamnolipids produced from the culture collection strains were evaluated for their antibacterial activity against Mycobacterium aurum. A number of key factors were identified which were important for the development of a rhamnolipid production process. Of critical importance were the media conditions. Good production was achieved on glucose media containing a phosphate limitation, pH buffering around neutral pH and a high carbon concentration (2 % carbon). When Pseudomonas aeruginosa ATCC 9027 was cultured on this medium (a minimal salts phosphate limited medium with a Tris buffer), it produced 1.31 g/l rhamnose, equivalent to 4.0 g/l rhamnolipid. This rhamnolipid concentration is 2.7-fold higher that of 1.47 g/l reported in the literature with the same strain (cultured on a different phosphate limited medium The particular strain also proved to be a factor which influenced the yield of rhamnolipids. A rhamnose concentration of 0.43 g/l was obtained with Pseudomonas aeruginosa ATCC 27853 grown on MSM+Tris medium, compared to 1.31 g/l produced by Pseudomonas aeruginosa ATCC 9027 on the same medium. The most promising strain and medium, Pseudomonas aeruginosa ATCC 9027 and MSM+Tris medium, were evaluated under controlled conditions in an instrumented bioreactor. Nearly double the rate of growth and production were obtained in the bioreactor, indicating that production time can be shortened considerably under controlled conditions. However, when compared to shake flask studies, only a 4 % increase in growth and a 5 % increase in rhamnolipid production were achieved in the bioreactor, indicating that the yield was limited by the media components or process conditions. With media containing hexadecane as sole carbon source, negligible rhamnolipid production was achieved. Slow growth was observed and the stationary phase had not been reached even after 2 weeks of growth. It was shown that in glucose media rhamnolipid production only commenced in the stationary phase. Since the stationary phase was not reached during growth on hexadecane, rhamnolipids, which are known to increase the availability of alkanes through emulsification and solubilisation, could not be produced. A strategy was devised to accelerate growth on alkane media. A dual substrate medium containing both glucose and hexadecane was investigated. It was hypothesised that growth would be promoted by glucose leading to rhamnolipid production, which would then increase the uptake of hexadecane. Rhamnolipid was produced in the dual substrate experiments, but the hexadecane uptake was still poor. This was suggested to be due to the exposure of the cells to glucose in the inoculum or test flask, which hampered the ability of the cells to utilise hexadecane. It was reasoned that the ability to utilise hexadecane was determined by the cell hydrophobicity, which was influenced by the exposure to hydrophilic or hydrophobic substrates. Rhamnolipids from Pseudomonas aeruginosa ATCC 9027 and ATCC 27853 were shown to have antibacterial activity against Mycobacterium aurum. The largest zone of clearing of 45 mm was obtained with 4 g/l rhamnolipid from Pseudomonas aeruginosa ATCC 9027. The activity was shown to be directly related to the rhamnolipid concentration, highlighting the importance of maximising the biosurfactant yield when developing a process for the production of rhamnolipids as antimicrobial agents. Antifungal activity tests against Botrytis cinerea were inconclusive. Future studies should expand the antimicrobial application of rhamnolipids by testing their activity against a larger range of target organisms. In order to maximise the rhamnolipid yield in future studies, a fed batch process is proposed which would increase the cell density thereby increasing rhamnolipid production and prolonging the stationary phase, which was found to be the phase associated with rhamnolipid production. Different feeding strategies should be investigated, depending on the kinetics of substrate consumption. It is desirable to feed the smallest volume of substrate that is necessary with a high concentration in order to keep the dilution rate low and maximise the product concentration. A factorial design is recommended for this purpose. Further studies with alkanes as carbon source should be conducted using strains that have been maintained and cultured on media containing alkanes as sole carbon source. Alternative biosurfactant producing strains should also be investigated, which have higher natural cell hydrophobicities.
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Marky, Bazan Karina. "Sistema de costos por proceso que contribuye en la obtención de costos eficientes de la Empresa Mobiliarios Hospitalarios Sin Fin SAC, del distrito La Victoria, año 2016." Bachelor's thesis, Universidad Ricardo Palma, 2016. http://cybertesis.urp.edu.pe/handle/urp/1433.

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Esta investigación se basa en un diagnóstico del sistema contable del proceso productivo.Se ha verificado todo los elementos que han intervenido en el proceso para determinar adecuados centros de costos. This research is based on a diagnosis of the accounting system of the production process. All the elements that have intervened in the process have been verified to determine appropriate cost centers.
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Tubychko, K. V., and O. M. Pihnastyi. "About the methods of formalization of technological process." Thesis, Брама, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/48303.

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There are mass, serial and single types of production are determined by the coefficient of consolidation of operations at the workplace (GOST 3.1121.84). Mass production is characterized by a type of highly specialized departments and sections on output, limited and stable for a long period of the time range of products. The main objective of planning is to ensure the movement of workpieces on at a given pace of operations. A significant part of the calendar-planned regulations for the type of mass production is sustainable and just laid the basis for the planned regulations of the production lines. Planning is based on the calculation of the rate of release and details of the calculation of interoperable standards groundwork. When a batch type production nomenclature of manufactured products less stable, but still regularly repeated in the release program, the number performed in detail shops operations far exceeds the number of jobs that determines the production of goods parties. Main planning task in batch production, ensuring periodicity of manufacture products in accordance with the scheduled task. Increasing seriality achieved the unification of parts and typed processes. The objective of production planning is to manufacture products on time and uniform loading of production sites for a given production cycle. Each type of production of different methods can be arranged. The main ones are in-line, single party and methods of production. The most effective line method. The set of methods, tools, and principles of organization of the process to form the production planning and control system. Specifically shown what it takes to build a mathematical model of operations.
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Chen, Yongjiang. "An integrated process planning and production scheduling framework for mass customization /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?IEEM%202003%20CHENY.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2003.
Includes bibliographical references (leaves 146-154). Also available in electronic version. Access restricted to campus users.
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Yu, Hui. "Effects of process approaches and process parameters on assembly precision /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?IEEM%202002%20YU.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2002.
Includes bibliographical references (leaves 140-148). Also available in electronic version. Access restricted to campus users.
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Kocaker, Bahadir Mustafa. "Production Properties Prediction After Forming Process Sequence." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1095512/index.pdf.

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Cold metal forming processes have been widely used for manufacturing of their high production rates and increased yield strength after forming process. For the use in service, increased yield strength of the cold-formed products should be known. The new yield strength can be found by several methods. Mechanical tests such as compression or tensile test are direct methods to obtain new yield strength if the product shape is appropriate. Finite element simulations may be another way to get accurate results for new yield strength distribution. Also Vickers hardness number can be used for prediction of yield strengths by available conversion models. The aim of this study is to compare the results of all these methods. During the study two different materials (austenitic stainless steel and carbon steel) cold formed by drawing and extrusion are investigated. FE simulations have been conducted to predict product properties. For this purpose flow curves obtained from compression and tensile tests are used in FE-models based on elasto-plastic, isotropic hardening material. Results show that both materials are highly anisotropic and have much lower yield strength values than found in simulations. Similarly none of the models correlating Vickers hardness numbers and yield strengths are successful since they are designed for an isotropic hardening material. This study basically presents the deviation of a real material behavior from isotropic material behavior.
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Boran, Efe. "Process Development For Continuous Photofermentative Hydrogen Production." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612955/index.pdf.

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By the integration of dark and photo fermentative hydrogen production processes, higher yields of hydrogen can be obtained from biomass. In the first step, biomass is utilized for hydrogen production by dark fermentation and in the second step, the effluent of dark fermentation is further utilized for hydrogen production by photofermentation using photosynthetic purple non-sulfur bacteria. The purpose of this study was to develop a solar pilot scale tubular photobioreactor (PBR) for continuous photo fermentative hydrogen production from the effluent of dark fermentation. This study demonstrated the implementation of the solar pilot tubular PBR for this new technology for the first time and successful continuous operations were performed in different seasons. Two different strains of Rhodobacter capsulatus were used for the operations. It was showed that even in winter, pure hydrogen could be produced in the pilot PBR with an average productivity of 0.3 mol H2/m3.h, when circulation of the PBR was continuous. Productivity obtained by the mutant strain was 0.2 mol H2/m3.h with periodical circulation. The integration between dark and photo fermentation was proven at pilot scales by using real dark fermenter effluents of molasses and thick juice. DFE of thick juice yielded a maximum productivity of 0.27 mol H2/m3.h whereas the maximum productivity obtained from DFE of molasses was 0.12 mol H2/m3.h. The most important factor affecting productivity is found to be the total received light energy and a yield factor (mmol H2/g dry cell weight) was correlated with total received light energy. Acetic acid consumption rates were found to be first order for daytime and zero order for nights. Furthermore acetic acid utilization for different metabolic pathways were estimated and by-product, poly- &beta
- hydroxybutyrate, specific rates of product formation were determined.
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Books on the topic "Production Process"

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Weynand, Diana. The post production process. Woodland Hills, Ca (6273 Callicott Ave., Woodland Hills 91367): Weynand Associates, 1985.

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G, Friedmann Paul, Stoltenberg T. P, and Instrument Society of America, eds. Continuous process control. Research Triangle Park, NC: Instrument Society of America, 1996.

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Matthews, Doug. Special event production: The process. United States: Butterworth-Heinemann, 2008.

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Morroni, Mario. Production process and technical change. Cambridge [England]: Cambridge University Press, 1992.

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Matthews, Doug. Special event production: The process. Amsterdam: Elsevier Butterworth-Heinemann, 2008.

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Scalisi, Francesca. Pro-innovation: Process production product. Palermo: Palermo University Press, 2019.

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A, Curtis Mark. Process planning. New York: Wiley, 1988.

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Slater, Roger. Integrated process management. Milwaukee, Wis: ASQC Quality Press, 1993.

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Bivin, D. Output bunching and the production process. Antwerpen: Universiteit Antwerpen, 1992.

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Kiss, Anton Alexandru. Process Intensification Technologies for Biodiesel Production. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03554-3.

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Book chapters on the topic "Production Process"

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Amasaka, Kakuro. "Production Process." In Science SQC, New Quality Control Principle, 285–95. Tokyo: Springer Japan, 2004. http://dx.doi.org/10.1007/978-4-431-53969-8_17.

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Scheer, August-Wilhelm. "Production Logistics." In Business Process Engineering, 86–385. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-79142-0_4.

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Owens, Jim. "The Production Process." In Television Production, 47–64. 17th edition. | New York : Routledge, 2020.: Routledge, 2019. http://dx.doi.org/10.4324/9780429027581-4.

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Sen, Ramkrishna, and Shantonu Roy. "Biobutanol Production Process." In Biofuel Production, 83–96. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003224587-5.

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Sen, Ramkrishna, and Shantonu Roy. "Bioethanol Production Process." In Biofuel Production, 65–82. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003224587-4.

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Sen, Ramkrishna, and Shantonu Roy. "Biomethane Production Process." In Biofuel Production, 45–64. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003224587-3.

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Alexopoulos, Kosmas, and George Chryssolouris. "Process." In CIRP Encyclopedia of Production Engineering, 1–4. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-642-35950-7_6567-4.

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Alexopoulos, Kosmas, and George Chryssolouris. "Process." In CIRP Encyclopedia of Production Engineering, 1349–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-53120-4_6567.

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Alexopoulos, Kosmas, and George Chryssolouris. "Process." In CIRP Encyclopedia of Production Engineering, 973–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-20617-7_6567.

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King, Peter L. "Product Wheels: Production Scheduling, Production Sequencing, Production Leveling." In Lean for the Process Industries, 217–50. Second edition. | Boca Raton : Taylor & Francis, Routledge, 2019.: Productivity Press, 2019. http://dx.doi.org/10.4324/9780429400155-13.

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Conference papers on the topic "Production Process"

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Borisut, Prapatsorn, Bianca Williams, Aroonsri Nuchitprasittichai, and Selen Cremaschi. "Design and Optimization of Methanol Production using PyBOUND." In Foundations of Computer-Aided Process Design, 668–73. Hamilton, Canada: PSE Press, 2024. http://dx.doi.org/10.69997/sct.194568.

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In this paper, we study the design optimization of methanol production with the goal of minimizing methanol production cost. One challenge of methanol production via carbon dioxide (CO2) hydrogenation is the reduction of operating costs. The simulation of methanol production is implemented within the Aspen HYSYS simulator. The feeds are pure hydrogen and captured CO2. The process simulation involves a single reactor and incorporates recycling at a ratio of 0.995. The methanol production cost is determined using an economic analysis. The cost includes capital and operating costs, which are determined through the equations and data from the capital equipment-costing program. The decision variables are the pressure and temperature of the reactor contents. The optimization problem is solved using a derivative-free algorithm, pyBOUND, a Python-based black-box model optimization algorithm that uses random forests (RFs) and multivariate adaptive regression splines (MARS). The predicted minimum methanol production cost by pyBOUND is $1396.56 per tonne of methanol, which corresponds to the pressure of 68.82 bar and temperature of 192.23�C while the actual cost is $1393.95 per tonne of methanol at these conditions. The cost breakdown of methanol production is 75% hydrogen price, 11% utility cost, 8% capital cost, 5% carbon dioxide price, and 1% operating cost.
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Cabeza, Andres F., Alvaro Orjuela, and David E. Bernal Neira. "A Novel Cost-Efficient Tributyl Citrate Production Process." In Foundations of Computer-Aided Process Design, 121–28. Hamilton, Canada: PSE Press, 2024. http://dx.doi.org/10.69997/sct.122277.

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Phthalates are the most widely used plasticizers in the polymers industry; however, their toxicity and environmental impacts have led to their ban in various applications. This has driven the search for more sustainable alternatives, including biobased citrate esters, especially tributyl citrate (TBC) and its acetylated form. TBC is typically produced by refined citric acid (CA) esterification with 1-butanol (BuOH). However, the high energy and materials-intensive downstream purification of fermentation-derived CA involves high production costs, thus limiting the widespread adoption of TBC as a plasticizer. This work presents an innovative approach for TBC production using calcium citrate as feedstock instead of pure CA. The process involves a simultaneous acidification-esterification stage and further hydration of calcium sulfate, thus reducing costs by avoiding multiple CA refining steps. The approach proceeds via a solid-solid-liquid reaction of calcium citrate with sulfuric acid in butanol, releasing CA, which is simultaneously esterified to form TBC. The resultant calcium sulfate aids in water removal to enhance esterification conversion. Based upon experimentally validated models and rigorous simulations, the proposed approach was evaluated, and it exhibited significant reductions in processing times and operating costs, with savings of at least 46% in utilities compared to traditional TBC production. The novel approach was found suitable and promising for industrial deployment.
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Ramos, Fernando D., Mat�as H. Ramos, Vanina Estrada, and M. Soledad Diaz. "Enhancing PHAs Production Sustainability: Biorefinery Design through Carbon Source Diversity." In Foundations of Computer-Aided Process Design, 868–75. Hamilton, Canada: PSE Press, 2024. http://dx.doi.org/10.69997/sct.150748.

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In this work, we propose a Mixed Integer Nonlinear Programming (MINLP) model to determine the optimal sustainable design of a poly(hydroxyalkanoate)s (PHAs) production plant configuration and its heat exchanger network (HEN). The superstructure-based optimization model considers different carbon sources as raw material: glycerol (crude and purified), corn starch, cassava starch, sugarcane sucrose and sugarcane molasses. The PHA extraction section includes four alternatives: the use of enzymes, solvent, surfactant-NaOCl or surfactant-chelate. Model constraints include detailed capital cost for equipment, mass and energy balances, product specifications and operating bounds on process units. To assess the feasibility of the PHA plant, we considered the Sustainability Net Present Value (SNPV) as the objective function, a multi-criteria sustainability metric that considers economic, environmental and social pillars. The Net Present Value (NPV) was also calculated. SNPV metric provides useful insights on sustainable PHA production, as the optimal technological route results in the sugarcane-surfactant-chelate option, rather than the sugarcane-enzyme pathway which proves more economically profitable, but with higher environmental impacts. Moreover, inclusion of HEN design significantly improves the objective function value, mainly due to a 24% carbon footprint impact reduction.
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Uday, Vikram, and Sujit Jogwar. "Optimal Design of a Biogas-based Renewable Power Production System." In Foundations of Computer-Aided Process Design, 912–19. Hamilton, Canada: PSE Press, 2024. http://dx.doi.org/10.69997/sct.194065.

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This paper presents optimal design for an energy-integrated biogas-fuel cell system for renewable electricity generation. The integrated process consists of two steps. The first step generates hydrogen from biogas via methane steam reforming (SMR), whereas the second step electrochemically converts this hydrogen into electricity using a solid oxide fuel cell (SOFC). These two steps are coupled via material and energy integration. Specifically, various design alternatives like anode and/or cathode gas recycling, biogas upgradation by CO2 removal, external versus direct internal reforming, and auxiliary power production through steam and/or micro gas turbine are explored to improve the overall efficiency and total annualized cost of the system. Specifically, a flowsheet superstructure is developed by incorporating all the available design alternatives. An optimal flowsheet with minimum total annualized cost is extracted from this superstructure using formal optimization techniques to meet the desired power target. Heat exchanger network superstructure is used to incorporate energy integration effectively. The proposed flowsheet and the corresponding optimal operating conditions are explained by analyzing the trade-offs associated with the corresponding design variables in terms of power production, capital expenditure, and utility consumption. For a power target of 300 kW, the proposed optimal energy-integrated process has a total annualized cost of $608,955/y with a net electrical efficiency of 67.1% and corresponds to electricity cost of $0.23/kWh.
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Rodriguez-Gil, Edwin A., and Rakesh Agrawal. "Internally Heated Crackers for Decarbonization and Optimization of Ethylene Production." In Foundations of Computer-Aided Process Design, 883–91. Hamilton, Canada: PSE Press, 2024. http://dx.doi.org/10.69997/sct.168053.

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Ethylene is a crucial precursor for a diverse spectrum of products and services. As global production exceeds 150 million tons annually and is projected to surpass 255 million tons by 2035, the imperative for sustainable and efficient ethylene production becomes increasingly clear. Despite Externally Heated Crackers (EHCs) dominating ethylene production for over a century, they face intrinsic limitations that necessitate transformative solutions, including intense radial thermal gradients, high metal demand, and substantial CO2 emissions. This study employs a robust combination of Computational Fluid Dynamics (CFD) coupled with detailed chemical kinetics to rigorously assess selected configurations of Internally Heated Crackers (IHCs) against the leading EHC designs. Our findings reveal that IHCs exhibit the potential to enhance ethylene output by a factor of 1.66 when compared to EHCs of the same length, diameter, and surface temperature. These results herald a promising era for developing more efficient cracking reactor designs, poised to redefine the landscape of sustainable chemical manufacturing towards achieving Net-Zero emissions. Embracing innovative technologies like IHCs presents an opportunity for the chemical industry to make significant strides in reducing its environmental footprint while meeting the growing global demand for ethylene and its derivatives.
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Masud, Md Abdullah Al, Alazar Araia, Yuxin Wang, Jianli Hu, and Yuhe Tian. "Machine Learning-Aided Process Design for Microwave-Assisted Ammonia Production." In Foundations of Computer-Aided Process Design, 316–21. Hamilton, Canada: PSE Press, 2024. http://dx.doi.org/10.69997/sct.121422.

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Machine learning (ML) has become a powerful tool to analyze complex relationships between multiple variables and to unravel valuable information from big datasets. However, an open research question lies in how ML can accelerate the design and optimization of processes in the early experimental development stages with limited data. In this work, we investigate the ML-aided process design of a microwave reactor for ammonia production with exceedingly little experimental data. We propose an integrated approach of synthetic minority oversampling technique (SMOTE) regression combined with neural networks to quantitatively design and optimize the microwave reactor. To address the limited data challenge, SMOTE is applied to generate synthetic data based on experimental data at different reaction conditions. Neural network has been demonstrated to effectively capture the nonlinear relationships between input features and target outputs. The softplus activation function is used for a smoother prediction compared to the Rectified Linear Unit activation function. Ammonia concentration is predicted using pressure, temperature, feed flow rate, and feed composition ratio as input variables. For point-wise prediction based on discrete operating conditions, the proposed SMOTE integrated neural network approach outperforms with 96.1% accuracy compared to neural networks (without SMOTE), support vector regression, and linear regression. The multi-variate prediction trends are also validated which are critical for design optimization.
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Leandro Almeida, Eugenia, Sérgio Inácio Gomes, Cid Marcos Gonçalves Andrade, and Onélia Aparecida Andreo dos Santos. "Biodiesel Production Process Versus Bioethanol Production Process. Preliminary Analysis." In 10TH International Conference on Sustainable Energy and Environmental Protection. University of Maribor Press, 2017. http://dx.doi.org/10.18690/978-961-286-048-6.34.

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Rankin, Mark, Bruce Lowe, Vernon Disney, and Kirk Spilman. "Process Redesign of Production Maintenance Operations." In SPE Production Operations Symposium. Society of Petroleum Engineers, 1995. http://dx.doi.org/10.2118/29477-ms.

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Al Marri, Mohd Salem. "Advanced Process Control." In SPE International Production and Operations Conference & Exhibition. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/156123-ms.

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Luísa Fernandes da Silva, Maria, Rogério Luis Aguilera, Milagros Cecilia Palacios-Bereche, Antonio Garrido Gallego, Silvia Azucena Nebra, and Reynaldo Palacios Bereche. "HYDROGEN PRODUCTION INTEGRATED IN THE ETHANOL PRODUCTION PROCESS." In International Symposium on Energy: Energy Transition, Green Hydrogen and Sustainable Industry - ISE 2023. Rio Grande do Sul: Softaliza Tecnologias LTDA, 2023. http://dx.doi.org/10.55592/ise.2023.2648369.

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Reports on the topic "Production Process"

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Najjar, Pamela. Optimization of a Paint Production Process. Fort Belvoir, VA: Defense Technical Information Center, April 2009. http://dx.doi.org/10.21236/ada499704.

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Allendorf, M. D., S. M. Ferko, and S. Griffiths. Process simulation for advanced composites production. Office of Scientific and Technical Information (OSTI), April 1997. http://dx.doi.org/10.2172/494119.

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Egorova, M. I., I. S. Michaleva, and E. S. Nikolaeva. Sugar production process flow control schemes. Federal Agricultural Kursk Research Center, December 2022. http://dx.doi.org/10.12731/ofernio.2022.25083.

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DeVelasco, R. I. Critical process parameters for UCO kernel production. Office of Scientific and Technical Information (OSTI), September 1988. http://dx.doi.org/10.2172/453983.

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Author, Not Given. Continuous Flow Solid-Catalytic Biodiesel Production Process. Office of Scientific and Technical Information (OSTI), March 2007. http://dx.doi.org/10.2172/942155.

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Carson, S. D., and P. K. Peterson. Accelerator Production of Tritium project process waste assessment. Office of Scientific and Technical Information (OSTI), September 1995. http://dx.doi.org/10.2172/110242.

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Rapp, D. M. Process development for production of coal/sorbent agglomerates. Office of Scientific and Technical Information (OSTI), January 1991. http://dx.doi.org/10.2172/5917373.

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Charles V Park. NGNP Process Heat Applications: Hydrogen Production Accomplishments for FY2010. Office of Scientific and Technical Information (OSTI), January 2011. http://dx.doi.org/10.2172/1013717.

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Mendoza, Luis. Production process for advanced space satellite system cables/interconnects. Office of Scientific and Technical Information (OSTI), December 2007. http://dx.doi.org/10.2172/1104784.

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Dady Dadyburjor, Philip R. Biedler, Chong Chen, L. Mitchell Clendenin, Manoj Katakdaunde, Elliot B. Kennel, Nathan D. King, et al. PRODUCTION OF CARBON PRODUCTS USING A COAL EXTRACTION PROCESS. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/887333.

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