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Articoli di riviste sul tema "Material production"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 30 maggio 2022

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1

Paton, B. E., e V. I. Trefilov. "Proposals for the ISS: Production of new unique materials in space («Material» Project)". Kosmìčna nauka ì tehnologìâ 6, n. 4 (30 luglio 2000): 20–21. http://dx.doi.org/10.15407/knit2000.04.020.

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Palievskaya, E. A., e Z. A. Sidlin. "State of raw material base of electrode production". Paton Welding Journal 2014, n. 6 (28 giugno 2014): 190–93. http://dx.doi.org/10.15407/tpwj2014.06.39.

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3

Vanickova, Radka. "Production material requirements in material ordering". Economic Annals-ХХI 156, n. 1-2 (aprile 2016): 105–8. http://dx.doi.org/10.21003/ea.v156-0024.

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4

Shtirc, Liudmila, Svetlana G. Vlasova e Dmitry Meshcherskikh. "Porous Material Production and Material Properties". Materials Science Forum 946 (febbraio 2019): 84–90. http://dx.doi.org/10.4028/www.scientific.net/msf.946.84.

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In our work we defined two directions for synthesizing porous material: pulping selected experimental glass compositions and using caustic soda as a foaming agent. We studied the foaming temperature settings, investigated the porous material properties. The intensity of the foaming process was estimated from the value of the foaming coefficient.

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5

Hinková, A., e Z. Bubník. "Sugar beet as a raw material for bioethanol production". Czech Journal of Food Sciences 19, No. 6 (10 febbraio 2013): 224–34. http://dx.doi.org/10.17221/6612-cjfs.

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Overproduction of sugar causes a reduction in the acreage under sugar beet. That is why new non-food technologies for exploitation of agricultural products are sought. Utilization of beet for liquid fuel production could be one of them. The aim of experiments with sugar beet raw juice fermentation was to verify the possibility to return a part of distiller’s slops back to the fermentation process and thereby to obtain stillage with higher content of dry solids. This would bring about energy savings during slops thickening and drying. Tests with recycling of different portions of stillage (20, 25 and 30%) back to the fermentation stage were carried out. No significant increase in dry solids content in mash was found and therefore no energy savings during thickening can be expected. The only savings can be made in water consumption that is replaced by slops.

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Allwood, Julian M., Michael F. Ashby, Timothy G. Gutowski e Ernst Worrell. "Material efficiency: providing material services with less material production". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, n. 1986 (13 marzo 2013): 20120496. http://dx.doi.org/10.1098/rsta.2012.0496.

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Material efficiency, as discussed in this Meeting Issue, entails the pursuit of the technical strategies, business models, consumer preferences and policy instruments that would lead to a substantial reduction in the production of high-volume energy-intensive materials required to deliver human well-being. This paper, which introduces a Discussion Meeting Issue on the topic of material efficiency, aims to give an overview of current thinking on the topic, spanning environmental, engineering, economics, sociology and policy issues. The motivations for material efficiency include reducing energy demand, reducing the emissions and other environmental impacts of industry, and increasing national resource security. There are many technical strategies that might bring it about, and these could mainly be implemented today if preferred by customers or producers. However, current economic structures favour the substitution of material for labour, and consumer preferences for material consumption appear to continue even beyond the point at which increased consumption provides any increase in well-being. Therefore, policy will be required to stimulate material efficiency. A theoretically ideal policy measure, such as a carbon price, would internalize the externality of emissions associated with material production, and thus motivate change directly. However, implementation of such a measure has proved elusive, and instead the adjustment of existing government purchasing policies or existing regulations— for instance to do with building design, planning or vehicle standards—is likely to have a more immediate effect.

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7

YASUI, Teruo. "Departure from material production." Journal of Synthetic Organic Chemistry, Japan 49, n. 2 (1991): 158–62. http://dx.doi.org/10.5059/yukigoseikyokaishi.49.158.

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8

Lewis, Jeffrey. "China's fissile-material production". Adelphi Series 54, n. 446 (3 aprile 2014): 77–98. http://dx.doi.org/10.1080/19445571.2014.995424.

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9

Staats, Gotthard, e Edgar Weichert. "Production of reference material". Fresenius' Zeitschrift für analytische Chemie 323, n. 5 (gennaio 1986): 460–63. http://dx.doi.org/10.1007/bf00470760.

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10

Frank, Dieter, e Gotthard Staats. "Production of reference material". Fresenius' Zeitschrift für analytische Chemie 327, n. 5-6 (gennaio 1987): 456–60. http://dx.doi.org/10.1007/bf00487226.

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11

Staats, Gotthard. "Production of reference material". Fresenius' Zeitschrift für analytische Chemie 327, n. 7 (gennaio 1987): 684–89. http://dx.doi.org/10.1007/bf00489162.

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12

Ito, Teruaki, e Effendi Bin Mohamad. "210 Material Handling Simulation Model for AsSi mbly Production Line". Proceedings of Conference of Chugoku-Shikoku Branch 2011.49 (2011): 55–56. http://dx.doi.org/10.1299/jsmecs.2011.49.55.

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Ito, Teruaki, e Effendi Bin Mohamad. "312 Comparison of material handling solutions in assembly production line". Proceedings of Manufacturing Systems Division Conference 2011 (2011): 81–82. http://dx.doi.org/10.1299/jsmemsd.2011.81.

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14

Šašala, Michal, Lukáš Hrivniak e Jozef Svetlík. "Material Selection for Prototype Design and Production". Materials Science Forum 994 (maggio 2020): 304–11. http://dx.doi.org/10.4028/www.scientific.net/msf.994.304.

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This paper deals with mechanical design and material selection process for experimental milling device used in mechanochemistry. Part of this process is right optimizing shapes and dimensions with used material and manufacturing process. Our selection and design process were considering stress on individual parts, purpose of parts, future upgradability, material cost and manufacturing cost. All these factors were resulting into high usage of materials like PLA (polylactic acid) and alloys based on aluminium. These materials are generally very good for prototyping thanks to their mechanical properties and cost. For parts with high stress expectation we therefore used more durable materials. In the end we describe disadvantages of PLA materials against metals in production.

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Souček, J., I. Hanzlíková e P. Hutla. "A fine desintegration of plants suitable for composite biofuels production". Research in Agricultural Engineering 49, No. 1 (8 febbraio 2012): 7–11. http://dx.doi.org/10.17221/4945-rae.

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In case of pressed composite biofuels production the important part of the production process is the input row materials disintegration. In dependence on disintegrated material properties, disintegration device, grinding stage and technological process there is in practice necessary for disintegration of culm materials 0.5–7% and of wooden species even 0.75–10% of total energetical content of material. A wide range of these figures means that in this sphere of raw materials adaptation can be reached relative high savings through correct choice of technological process and device. The authors of the paper have measured energy consumption of fine disintegration of lignocellulose materials in dependence on particles size and moisture. By the realized measurement of different average size of both input and output particles and consequent statistical evaluation was proved the fiducial energy consumption increase at higher stage of disintegration and higher moisture of the input material. All measurements were carried-out for the grinding mill &Scaron;K 300 and the output particles size was limited by the exchange sieves mesh dimension.

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Sonko, Yuliia, Iryna Lazebna e Larysa Lebedeva. "Material production and GDP in Ukraine: theoretical concept and financial assessment". Investment Management and Financial Innovations 15, n. 2 (27 aprile 2018): 51–59. http://dx.doi.org/10.21511/imfi.15(2).2018.05.

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The article considers the relevant problems concerning the correlation between the development of priority economic sectors and sustainable economic growth in Ukraine. The assumption is made that development at the macroeconomic level can only be achieved when the positive dynamics of material production sectors is observed. The resource potential of Ukraine allows to distinguish two main sectors: agriculture and industry.Many scholars have repeatedly considered ways of achieving positive economic dynamics at the level of the national economy. But despite the existing research on the problems of economic growth, its’ financial assessment and modelling, as well as the dominant factors of influence, remain unsolved. The aim of the article is to identify the factors of economic growth and assess their influence on the overall economic dynamics within two main material production sectors of Ukraine: industry and agriculture. In order to achieve this, the influence factor model of economic growth has been composed, where GDP growth was selected as a result indicator. The choice of influencing factors is substantiated by: quantity of goods and services sold, number of employees in the industry, investments, fixed assets value and the consumer price index. The most influential factors that significantly impact the overall economic dynamics have been revealed in the article.

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Dereli, Mustafa, e Mustafa Tosun. "Evaluation of Aluminium Production Waste in Building Material Production". Iconarp International J. of Architecture and Planning 9, n. 2 (21 dicembre 2021): 991–1009. http://dx.doi.org/10.15320/iconarp.2021.189.

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18

Simonic, Marjana, e Fras Zemljic. "Production of bioplastic material from algal biomass". Chemical Industry and Chemical Engineering Quarterly, n. 00 (2020): 26. http://dx.doi.org/10.2298/ciceq191024026s.

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Bioplastic. composite material was developed from polylactic acid used as basic polymer and microalgae. Two types of biomaterials were prepared based on the proportion of microalgae and polylactic acid. The mass ratios were set to 5:95 %w/w and 10:90 %w/w. Firstly, Spirulina was chosen as initial material and secondly a mixed culture of microalgae community from the biogas digestate treatment. The aim of the research was to study the characteristics of materials in order to determine whether the algal biomass community could be used in the production of bioplastics. It was found out that microalgae do not significantly impact the properties of the polylactic acid material. The degree of material crystallinity increased, the melting temperature reduced, and the modules of losses increased.

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19

Łach, Michał, Maria Hebdowska-Krupa, Anna Stefańska, Justyna Stefanek, Artur Stanek, Janusz Mikuła e Marek Hebda. "Characterisation of post-production raw material from the Raciszyn II deposit as a material suitable for the production of alkaline-activated materials". Journal of Thermal Analysis and Calorimetry 138, n. 6 (17 luglio 2019): 4551–59. http://dx.doi.org/10.1007/s10973-019-08539-4.

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Barbara, Dolińska, Jelińska Marta, Szulc-Musioł Beata e Ryszka Florian. "Use of eggshells as a raw material for production of calcium preparations". Czech Journal of Food Sciences 34, No. 4 (4 agosto 2016): 313–17. http://dx.doi.org/10.17221/59/2016-cjfs.

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The kinetics of calcium release from tablets obtained from modified eggshells in the form of calcium citrate and calcium carbonate was investigated. Calcium release showed the first-order kinetics. After 30 min of the experiment, 79.93% of calcium was released from tablets obtained from modified eggshells in the form of calcium citrate, reaching ~100% after 3 hours. For tablets produced with calcium carbonate, these values were 7 and 60%, respectively. The half-time of calcium release from tablets containing calcium citrate was t<sub>50% </sub>= 0.5 h and for tablets containing calcium carbonate it was t<sub>50% </sub>= 2.2 h, so calcium in the form of calcium citrate was released 4 times faster. These results can be connected with different solubility of calcium salts. The hardness of tablets with calcium carbonate was by 30 N lower than the hardness of tablets with calcium citrate. It is associated with particular physicochemical properties of calcium salt. Calcium citrate can exist in several states of hydration while calcium carbonate is anhydrous. These properties have an influence on the hardness of tablets.

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21

Popova, A. A. "Process Design of Activated Carbon Material Production". Vestnik Tambovskogo gosudarstvennogo tehnicheskogo universiteta 27, n. 2 (2021): 318–27. http://dx.doi.org/10.17277/vestnik.2021.02.pp.318-327.

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The possibility of developing activated carbon materials with a high specific surface area is shown. Their classification, the main stages of research and the results obtained are considered. A schematic diagram of the production of a material with a BET specific surface in the range of 2400...2700 m2/g is presented. The main stages of the production of activated carbon material have been determined, including the preliminary carbonization of the carbon raw material, its alkaline activation, and the post-processing of the obtained material (from the pre-preparation of the components and the preparation of the reaction mixture to the subsequent isolation and drying of the finished product). The composition of the equipment and the possibility of a large-scale transition from laboratory to pilot industrial production have been determined.

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22

Novakova-Marcincinova, Ludmila, e Jozef Novak-Marcincin. "Production of Composite Material by FDM Rapid Prototyping Technology". Applied Mechanics and Materials 474 (gennaio 2014): 186–91. http://dx.doi.org/10.4028/www.scientific.net/amm.474.186.

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In the paper is presented information about common and advanced materials used for manufacturing of products by Fused Deposition Modelling (FDM) rapid prototyping technology. In different rapid prototyping technologies the initial state of material can come in either solid, liquid or powder state. The current range materials include paper, nylon, wax, resins, metals and ceramics. In FDM are mainly used as basic materials ABS - Acrylonitrile Butadiene Styrene, polyamide, polycarbonate, polyethylene and polypropylene. Main part of the paper is focused on experimental production and testing of composite material produced by rapid prototyping realized by Fused Deposition Modelling (FDM) method and presents outputs of testing of ABS/glass texture material realized by authors.

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23

Subochev, I. G., N. V. Pitak e I. V. Eremina. "Natural aluminosilicate raw material for production of mullite-silica fiber materials". Refractories 32, n. 7-8 (luglio 1991): 362–64. http://dx.doi.org/10.1007/bf01282014.

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Sitko, Jacek. "Analysis of Performance Processes Material Management". Multidisciplinary Aspects of Production Engineering 3, n. 1 (1 settembre 2020): 216–26. http://dx.doi.org/10.2478/mape-2020-0019.

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AbstractRegardless of unit production, mass production – an excellent production plan is always expected to combine the exact amount of materials at the right time with production cells and employees. An accurate production plan saves money by reducing production costs and time. It helps to achieve the goal and generate the best production plan. The article addresses the problems of material resource organization in industrial, mining and processing enterprises, affecting production efficiency. Particularly the problems of planning and preparation of unit, serial and mass production in relation to specific products. Depending on the nature of material consumption (basic or auxiliary materials), different planning methods and techniques are used.

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Vetrova, E. A. "DIALECTIC NATURE OF NON-MATERIAL PRODUCTION". Social - Economic Phenomena and Processes 10, n. 11 (2016): 7–12. http://dx.doi.org/10.20310/1819-8813-2015-10-11-7-12.

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26

Ng, Shiu-tong Thomas, Joseph H. L. Chan, Greg K. C. Chan e Joe W. W. Zou. "Environmental impacts of construction material production". Proceedings of the Institution of Civil Engineers - Engineering Sustainability 170, n. 3 (giugno 2017): 169–84. http://dx.doi.org/10.1680/jensu.15.00009.

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27

Glaser, Alexander, e Zia Mian. "Fissile Material Stocks and Production, 2008". Bulletin of the Atomic Scientists 65, n. 1 (gennaio 2009): 35–47. http://dx.doi.org/10.2968/065001005.

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İşleyen, Alper. "Certified reference material production in Turkey". Journal of Chemical Metrology 11, n. 2 (2 novembre 2017): 86–88. http://dx.doi.org/10.25135/jcm.12.17.10.056.

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Plekhanova, T. A., V. A. Krutikov, A. Yu Bondar', G. I. Yakovlev e R. V. Machyulaitis. "Production Technology for Gypsum-Ceramic Material". Glass and Ceramics 60, n. 11/12 (novembre 2003): 411–13. http://dx.doi.org/10.1023/b:glac.0000020802.15527.bb.

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30

Katerinin, K. V., P. A. Sidyakin, D. M. Shchitov e P. S. Chernov. "Receiving sorption material from production waste". IOP Conference Series: Materials Science and Engineering 913 (12 settembre 2020): 052067. http://dx.doi.org/10.1088/1757-899x/913/5/052067.

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31

Smith, Peter R. "Matter: material processes in architectural production". Architectural Science Review 56, n. 4 (novembre 2013): 337–38. http://dx.doi.org/10.1080/00038628.2013.770213.

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32

Glaser, Alexander, e Zia Mian. "Fissile Material Stockpiles and Production, 2008". Science & Global Security 16, n. 3 (11 dicembre 2008): 55–73. http://dx.doi.org/10.1080/08929880802565131.

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33

Zauner, Elisabeth, e Ulrich Küntzel. "Methane production from ensiled plant material". Biomass 10, n. 3 (gennaio 1986): 207–23. http://dx.doi.org/10.1016/0144-4565(86)90054-5.

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34

Aypar, A., e H. Demirtaş. "Production of LiF:Ti thermoluminescence dosimeter material". International Journal of Applied Radiation and Isotopes 36, n. 7 (luglio 1985): 566–68. http://dx.doi.org/10.1016/0020-708x(85)90112-7.

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35

Maceiras, Rocio, Mónica Rodrı´guez, Angeles Cancela, Santiago Urréjola e Angel Sánchez. "Macroalgae: Raw material for biodiesel production". Applied Energy 88, n. 10 (ottobre 2011): 3318–23. http://dx.doi.org/10.1016/j.apenergy.2010.11.027.

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Azarov, G. M., A. S. Vlasov, E. V. Maiorova e M. A. Oborina. "Diopside: Raw material for porcelain production". Glass and Ceramics 52, n. 8 (agosto 1995): 216–18. http://dx.doi.org/10.1007/bf00679883.

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Gutiérrez Jiménez, Esteban. "Material digital. Modelo para el análisis de la producción digital". kepes 14, n. 15 (17 gennaio 2017): 281–303. http://dx.doi.org/10.17151/kepes.2017.14.15.11.

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Tukhareli, V. D., E. E. Gnedash e A. V. Tukhareli. "Heat-Resistant Composite Materials Based on Secondary Material Resources". Solid State Phenomena 299 (gennaio 2020): 287–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.299.287.

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Heat-resistant properties of the cement stone are provided by both high-temperature filler and the modified matrix on the basis of the Portland cement. For production of heat-resistant compositions as high-temperature filler, it is offered to use the secondary and accompanying products of production of carbide of silicon (SiC) and production wastes of the abrasive tools on a ceramic base. Increase in heat-resistant properties of the Portland cement knitting substance is offered to be solved by introduction to the structure of a cement composition of single substituted orthophosphate of calcium. The choice as an additive to the Portland cement a single substituted orthophosphate of calcium (double superphosphate) is proved by questions of safety measures and ecology, when using ortho-phosphoric acid and its salts for giving to cement compositions heat-resistant properties. The multicomponent composition of fine-grained concrete makes it possible to operate effectively the processes of forming the structure of cement stone at all stages of the technology, and to obtain materials with the most diverse set of properties. An introduction to the structure of a composite of 5% of filler of cyclonic dust of carbide of silicon, and a replacement of quartz filler by waste of abrasive production gave the increase of the compressive strength at 12%, bending strength for 36%. The thermal firmness increased by 3 times. An introduction to the structure of heat-resistant composition of single substituted orthophosphate of calcium (double superphosphate) in a number of 0.2% of the mass of cement allowed to increase the thermal firmness of structures to 20 heat exchanges (water, 800 oС).

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Malińska, Krystyna. "BIOCHAR AS A SUPPLEMENTARY MATERIAL FOR BIOGAS PRODUCTION". Inżynieria Ekologiczna 41 (2015): 117–24. http://dx.doi.org/10.12912/23920629/1835.

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Permana, Sidik, Novi Trian, Abdul Waris, Zaki Suud, I. Mail e Mitsutoshi Suzuki. "Analysis on Even Mass Plutonium Production of Different Loading Materials in FBR Blanket". Advanced Materials Research 772 (settembre 2013): 507–12. http://dx.doi.org/10.4028/www.scientific.net/amr.772.507.

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Spent nuclear fuel (SNF) from nuclear facilities such as from accumulated SNF commercial reactors becomes one of the important issues in term of reducing environmental impact and fuel sustainability as well as nuclear nonproliferation point of view when those SNF materials can be recycled and utilized as new fuel loaded into the reactors. Minor actinides (MA) as one of the important material of spent nuclear fuels can be recycled and transmuted into some useful materials which can be utilized to increase the fuel breeding capability as well as for increasing protected plutonium production from the view point of nuclear nonproliferation issue. Increasing some even mass isotopic plutonium compositions are estimated to increase the level of proliferation resistance level in term of material barrier point of view. The objective of this study is to analyze the proliferation resistance aspect of nuclear fuel based on plutonium production of different loading materials in the FBR blanket. Evaluation is based on some basic parameters of reactor operation analysis, such as reactor operation time which is adjusted to 800 days operation per cycle for 4 fuel batches systems which is refered to the large FBR type of Japan Sodium Fast Reactor (JSFR) design. The results show some nuclear fuels behavior during reactor operation for different loading materials and cycles. Minor actinide (MA) material loading as doping material gives some significant plutonium productions during reactor operation. Some obtained actinide productions have different profiles such as some reducing compositions in americium and neptunium actinide compositions with the time which depends on initial loading material. Some plutonium vector compositions are evaluated from Pu-238 to Pu-242 to estimate the proliferation resistance level as isotopic material barrier of plutonium. Some significant contributions for increasing even mass plutonium as plutonium protected material are shown by Pu-238 from all doping material as well as additional production of Pu-240 and Pu-242 in certain conditions.

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Kareem, B. "Development of a Raw Material Requirement Balancing Model for a Production Process". Advanced Materials Research 824 (settembre 2013): 490–98. http://dx.doi.org/10.4028/www.scientific.net/amr.824.490.

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Attainment of accuracy in raw materials mix for production processes has been the major problem in many production organizations in developing countries. Effects of unequal proportions of material required for a production process are not fully considered in the past studies. This study modeled the raw material requirements in a production process using proportionality based mixed linear programming approach. The objective was to find optimal mix of raw materials for the production of a unit tonnage of a product. The performance of the model was tested by comparing it with alternatively formulated model based on conventional material mix. This model was tested using a cement production system from which blasted limestone, crushed limestone; raw meal, gypsum, red alluvium, clinker and coal were used as raw materials. The conventional method of mixing materials led to 50 % surplus and shortage of materials in the process as compared with the new scheme. The model would be a good tool for accurate prediction of quantity of the raw material required in the production process.Nomenclature, the proportion of material used per ton of the processed product, the quantity of material in processed product (ton), the material proportional per ton of the product, andthe total quantity of materials needed per ton of the product,..., the counter for material type,..., the counter for material proportionality variant

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Huang, Fang. "Research on Plastic Wood Composite Materials Production Technology". Applied Mechanics and Materials 182-183 (giugno 2012): 274–77. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.274.

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Wood flour is inexpensive, and can be used as a reinforcing agent to improve the mechanical properties of high density polyethylene, reduce cost. Wood fiber as a renewable natural material, biodegradation, therefore, high filling wood powder high density polyethylene composite material with certain environmental compatibility, at the same time, high density polyethylene can be a source of waste recycling materials, therefore plastic-wood composite material is a kind of can reduce the "white pollution" environmental material. [1-5]

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Zhu, Yanwu, Hengxing Ji, Hui-Ming Cheng e Rodney S. Ruoff. "Mass production and industrial applications of graphene materials". National Science Review 5, n. 1 (5 giugno 2017): 90–101. http://dx.doi.org/10.1093/nsr/nwx055.

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Abstract Graphene is considered a promising material for industrial application based on the intensive laboratory-scale research in the fields of physics, chemistry, materials science and engineering, and biology over the last decade. Many companies have thus started to pursue graphene materials on a scale of tons (for the flake material) or hundreds of thousands of square meters (for the film material) for industrial applications. Though the graphene industry is still in its early stages, very significant progress in mass production and certain industrial applications has become obvious. In this report, we aim to give a brief review of the mass production of graphene materials for some industrial applications and summarize some features or challenges for graphene in the marketplace.

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44

Ravishankara, S., P. K. Nagarajan, D. Vijayakumar e M. K. Jawahar. "Phase Change Material on Augmentation of Fresh Water Production Using Pyramid Solar Still". International Journal of Renewable Energy Development 2, n. 3 (30 ottobre 2013): 115–20. http://dx.doi.org/10.14710/ijred.2.3.115-120.

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The augmentation of fresh water and increase in the solar still efficiency of a triangular pyramid is added with phase change material (PCM) on the basin. Experimental studies were conducted and the effects of production of fresh water with and without PCM were investigated. Using paraffin as the PCM material, performance of the solar still were conducted on a hot, humid climate of Chennai (13°5′ 2" North, 80°16′ 12"East), India. The use of paraffin wax increases the latent heat storage so that the energy is stored in the PCM and in the absence of solar radiation it rejects its stored heat into the basin for further evaporation of water from the basin. Temperatures of water, Tw, Temperature of phase change material, TPCM, Temperature of cover, Tc were measured using thermocouple. Results show that there is an increase of maximum 20%, in productivity of fresh water with PCM. Keywords: fresh water production; PCM; thermal energy storage; phase change material

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Peluffo, S., H. González Idiarte, A. Borges, J. Arboleya e G. A. Galván. "Onion sets as planting material for seed production of three cultivars in Uruguay". Seed Science and Technology 44, n. 3 (31 dicembre 2016): 500–513. http://dx.doi.org/10.15258/sst.2016.44.3.04.

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46

Utama, Dana Marsetiya, Heri Mujayin Kholik e Azis Fredy Mulya. "Integrated Procurement-Production Inventory Model with Two-Stage Production". Jurnal Teknik Industri 21, n. 2 (30 agosto 2020): 185–99. http://dx.doi.org/10.22219/jtiumm.vol21.no2.185-199.

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Abstract (sommario):

The inventory-production system concerns the effective management of the goods flows from raw materials to finished products. The Integrated Procurement-Production (IPP) system consists of many elements that must be managed effectively. The problem will be more complex if it involves deciding on the number of delivery frequencies at the retailer level. In this case, the Integrated Procurement-Production's objective function depends on the frequency of raw material shipments, the frequency of delivery of finished products, and the time of the production cycle. This study aims to develop an IPP system to maximize total profit. The decision variables used are the frequency of raw material delivery, the frequency of delivery of finished products, and the production cycle time. This study proposes the Dragonfly Algorithm (DA) as an algorithm for problem-solving. Dragonfly Algorithm is used to find the best inventory decision variables. This study conducted experiments with various iteration parameters and DA population. The results showed that the greater the iteration and the population used, the greater the profit. A sensitivity analysis of decision variables is also presented in this investigation.

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47

Vaněček, D., e D. Kaláb. "Logistics in agricultural production". Agricultural Economics (Zemědělská ekonomika) 49, No. 9 (2 marzo 2012): 439–43. http://dx.doi.org/10.17221/5429-agricecon.

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Abstract (sommario):

In spite that the great importance of logistics in industry, business and other branches is generally acknowledged, this problem is not systematically investigated in agriculture. As a presumption of a detailed analysis, the knowledge of the volume and structure of the material flow is necessary. The authors have proposed their own methodological procedure which issues from technological indicators, published by the Ministry of Agriculture CR for individual plants and categories of animals and which makes possible a further classification of these data for enterprises with different level of farming. These published standards of the Ministry serve as basic stones and by means of their combination, the volume of material flow and its structure during one year periods is possible to calculate. The advantage of the proposed method is a fast finding out of necessary data and possibility of taking into account some specific conditions of the investigated enterprises.

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48

WASHIZAWA, Norimasa, Hideaki NARUSAWA, Yukimichi TAMAKI e Takashi MIYAZAKI. "Production of a calcium silicate cement material from alginate impression material". Dental Materials Journal 31, n. 4 (2012): 629–34. http://dx.doi.org/10.4012/dmj.2012-027.

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49

Abdrakhimova, E. S., A. K. Kairakbaev e V. Z. Abdrakhimov. "BOTTOM-ASH MATERIAL APPLICATION IN INTERSCHISTIC CLAY – BASED THERMAL INSULATION MATERIALS PRODUCTION". Ugol’, n. 10 (8 ottobre 2016): 74–78. http://dx.doi.org/10.18796/0041-5790-2016-10-74-78.

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50

Straß, B., C. Conrad e B. Wolter. "Production integrated nondestructive testing of composite materials and material compounds – an overview". IOP Conference Series: Materials Science and Engineering 181 (marzo 2017): 012017. http://dx.doi.org/10.1088/1757-899x/181/1/012017.

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