Journal articles: 'Material productivity'

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Steinberger, Julia K., and Fridolin Krausmann. "Material and Energy Productivity." Environmental Science & Technology 45, no. 4 (2011): 1169–76. http://dx.doi.org/10.1021/es1028537.

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Adelaja, Adesoji O. "Material Productivity in Food Manufacturing." American Journal of Agricultural Economics 74, no. 1 (1992): 177–85. http://dx.doi.org/10.2307/1243002.

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Kelvin, Egberi A., and Okorie Chiyem. "Materials Management and Productivity of Fast Moving Consumer Goods Companies in Nigeria: A canonical Correlation Approach." Journal of Management and Social Science Research 1, no. 1/2 (2020): 34–42. http://dx.doi.org/10.47524/jmssr.11.5.

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In this paper, the effect of material management on productivity level of fast moving consumer products enterprises in Nigeria was assessed. The survey design was employed and questionnaire was the major instrument of data collection designed via two material management dimensions (raw materials and work-in- progress) and productivity dimensions (material efficiency and yield). Questionnaire were administered to three hundred and seven (307) respondents and data obtained were analyzed using Canonical correlation. Results of canonical correlation analysis revealed that the combination of material efficiency and yield (productivity proxies) had a statistically significant relationship on sets of material management being measured by raw material and work-in-progress. The study concludes that improvement in material management will increase the productivity of FMCG companies in Nigeria. Given the results of the study, improvements in material management is needed such that material requisition and conversion units should ensure that required materials for production of goods are those put into the production process in order to realize efficiency of production and superior yield of finished goods by fast moving consumer products organizations. In addition, fast moving products companies should ensure maintenance of optimum level of material resources in its store room and reduce unhealthy practice in material usage that are pivotal to reducing productivity.

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Schandl, Heinz, and James West. "Material Flows and Material Productivity in China, Australia, and Japan." Journal of Industrial Ecology 16, no. 3 (2012): 352–64. http://dx.doi.org/10.1111/j.1530-9290.2011.00420.x.

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Kumar, C. N. Ashok, and R. Deivanathan. "Effect of Aluminium Alloy and Mild Steel on the Productivity in Sheet Metal Forming Processes." Applied Mechanics and Materials 234 (November 2012): 64–68. http://dx.doi.org/10.4028/www.scientific.net/amm.234.64.

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Productivity is one of the major factors that affect the profit of any industry or any product. In manufacturing industries, the productivity is showing the efficiency of the production unit. It depends on many factors such as technology, machine, method, management, materials etc. In this study, material used is considered and analyzed how it affects the productivity. Productivity is normally expressed as the number of units produced / unit time. Sheet metal forming is one of the major manufacturing processes and used for most of the products. So the selection of material is important for good quality as well as economical production. This article discusses how the material influences the productivity. For this study, a product U Clamp is considered. The materials considered for the study are the aluminum and mild steel. The U clamps are formed by aluminum as well as mild steel by using the same die. Data on operation time, material handling time are collected, analyzed and discussed.

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Roy, Ranjeet, and G. S. Dangayach. "Measuring productivity and material handling cost reduction." International Journal of Business and Systems Research 9, no. 3 (2015): 214. http://dx.doi.org/10.1504/ijbsr.2015.071820.

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Adelaja, Adesoji O. "Productivity Growth and Input Mix Changes in Food Processing." Northeastern Journal of Agricultural and Resource Economics 21, no. 1 (1992): 21–29. http://dx.doi.org/10.1017/s0899367x0000249x.

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To examine productivity growth in New Jersey's food-processing sector, this study conducts a joint analysis of total and partial factor productivity indexes. Results indicate growing material intensity, declining labor and capital intensities, and relatively slow material productivity growth. However, due to the high cost share of material inputs, material productivity growth contributed more to total factor productivity growth than did growth in the productivity of any other input. In fact, almost half of the growth in overall productivity is attributed to material productivity growth. Results also suggest that the 1973 decline in total factor productivity was characterized by greater decline in material productivity than in the productivities of labor and capital.

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Czechowski, Kazimierz. "Increasing the productivity of machining." Mechanik 92, no. 7 (2019): 406–9. http://dx.doi.org/10.17814/mechanik.2019.7.45.

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Selected issues related to increasing the productivity of machining were presented. Examples of increasing the tool life by depositing nanostructured PVD coatings on blades are presented. The increase of productivity through selection of machining parameters based on material machinability tests was discussed. The possibilities of The Institute of Advanced Manufacturing Technology in this regards are presented. Some aspects of materials machinability evaluation and cutting abilities of tool edges, as well as effects of metal cutting fluids on these properties are discussed.

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Beaulieu, Judith, Mario Godard, and FranÃ§ois Bowen. "Calculating the Productivity and Efficiency of an Educational Product: Transposition of Mario Godardâ€™s Method." INTERNATIONAL JOURNAL OF RESEARCH IN EDUCATION METHODOLOGY 8, no. 1 (2017): 1411–19. http://dx.doi.org/10.24297/ijrem.v8i1.6070.

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The Office of the educational materialâ€™s approval is responsible for approving educational material. The approval process does not include use of the material by students. The productivity of educational products is unknown. The goal of this article is to find a way to calculate the productivity and efficiency of an educational product, to improve it in order to provide a truly effective tool. To do this, we were inspired by the book written by Professor Mario Godard (2010). We will propose ways to measure the productivity and efficiency of an educational product. Finally, we will discuss the difficulties caused by this calculation. RÃ‰SUMÃ‰. Le Bureau dâ€™approbation du matÃ©riel didactique a pour tÃ¢che dâ€™approuver le matÃ©riel didactique. Cette Ã©valuation ne comprend pas une utilisation par les Ã©lÃ¨ves. La productivitÃ© et lâ€™efficience du processus de conception dâ€™un produit pÃ©dagogique et lâ€™impact de lâ€™utilisation de ce produit sur la productivitÃ© du processus dâ€™utilisation sont inconnus. Ce texte a pour objectif de trouver une faÃ§on de calculer la productivitÃ© et lâ€™efficience du processus de conception dâ€™un produit et lâ€™impact de lâ€™utilisation dâ€™un produit pÃ©dagogique sur la productivitÃ© du processus de formation. Pour ce faire, nous nous sommes inspirÃ©s du livre du professeur Mario Godard (2010).

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Baptist, Simon, and Cameron Hepburn. "Intermediate inputs and economic productivity." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, no. 1986 (2013): 20110565. http://dx.doi.org/10.1098/rsta.2011.0565.

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Many models of economic growth exclude materials, energy and other intermediate inputs from the production function. Growing environmental pressures and resource prices suggest that this may be increasingly inappropriate. This paper explores the relationship between intermediate input intensity, productivity and national accounts using a panel dataset of manufacturing subsectors in the USA over 47 years. The first contribution is to identify sectoral production functions that incorporate intermediate inputs, while allowing for heterogeneity in both technology and productivity. The second contribution is that the paper finds a negative correlation between intermediate input intensity and total factor productivity (TFP)—sectors that are less intensive in their use of intermediate inputs have higher productivity. This finding is replicated at the firm level. We propose tentative hypotheses to explain this association, but testing and further disaggregation of intermediate inputs is left for further work. Further work could also explore more directly the relationship between material inputs and economic growth—given the high proportion of materials in intermediate inputs, the results in this paper are suggestive of further work on material efficiency. Depending upon the nature of the mechanism linking a reduction in intermediate input intensity to an increase in TFP, the implications could be significant. A third contribution is to suggest that an empirical bias in productivity, as measured in national accounts, may arise due to the exclusion of intermediate inputs. Current conventions of measuring productivity in national accounts may overstate the productivity of resource-intensive sectors relative to other sectors.

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Moumi, Eric, Marius Herrmann, Christian Schenck, and Bernd Kuhfuss. "High productivity micro rotary swaging." MATEC Web of Conferences 190 (2018): 15002. http://dx.doi.org/10.1051/matecconf/201819015002.

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Rotary swaging is an incremental forming process with two main process variations plunge and infeed rotary swaging. With plunge rotary swaging, the diameter is reduced within a limited section whereas the infeed rotary swaging enables a diameter reduction over the entire workpiece length. The process is now subject to intensive investigation for manufacturing of micro parts. By increasing the process speed, failures occur particularly due to inappropriate material flow. In plunge rotary swaging, the workpiece material can flow radially into the gap between the dies and thus the workpiece quality suffers. In infeed rotary swaging the workpiece material flows against the feeding direction and can provoke bending or braking of the workpiece. Therefore, additional measures to control both the radial and the axial material flow to enable high productivity micro rotary swaging are investigated. The radial material flow during plunge rotary swaging can be controlled by elastic intermediate elements that enable an increase of productivity by factor three. A spring-loaded clamping device that enables an increase of the productivity by factor four can temporarily buffer the axial material flow in infeed rotary swaging against the feeding direction.

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M, Ashika, and Monisha V. "A Material Management in Construction Project Using Inventory Management System." International Journal for Modern Trends in Science and Technology 6, no. 5 (2020): 32–40. http://dx.doi.org/10.46501/ijmtst060506.

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Material management is a critical component of the construction industry. The goal of materials management is to insure that construction materials are available at their point of use when needed. A proper implemented material management program can achieve the timely flow of materials and equipment to the jobsite, and thus facilitate improved work face planning, increased labour productivity, scheduling and minimize the cost. Material management is an important function in order to improve productivity in construction project. It is defind materials management function which take off, vendor evaluation and selection , purchasing, expenditure, shipping, material receiving, where housing and inventory, and material distribution. In this project we have prepare scheme of material management in the construction industry for building project also conducting survey of industry and determine the various format for construction material management. In conclusion the wastage of material, control cost of material and time should be analyzed by using inventory management system.

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Fernández-Herrero, Laura, and Juan Antonio Duro. "What causes inequality in Material Productivity between countries?" Ecological Economics 162 (August 2019): 1–16. http://dx.doi.org/10.1016/j.ecolecon.2019.04.007.

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Ahmad Fauzi, Rizki. "ANALISIS PENERAPAN “MATERIAL REQUIREMENT PLANNING (MRP)” DALAM PENGENDALIAN PERSEDIAAN BAHAN BAKU PANEL PADA PT. CAHAYA BUANA INTITAMA DI BOGOR." Jurnal Ilmiah Binaniaga 7, no. 01 (2019): 1. http://dx.doi.org/10.33062/jib.v7i01.271.

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One strategy is to increase productivity by enhancing the company's inventory management system to support the smooth day-to-day operations, the company hopes to establish the amount of raw material inventories efficiently, besides it can reduce the undesirable things, such as: Stock material less raw, raw material stock of redundant, inefficient, disorganized inventory layout, handling errors resulting in damage to the raw materials and others. Models control conducted by PT. Cahaya Buana Intitama is currently using two techniques, namely the calculation of average calculation and the calculation of the last three months the average per period (total months of the current year) to obtain the "Purchase Plan".Keywords: productivity, raw materials, control, material requirements planning.

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Puspitasari, Melati, and Afrizal Nursin. "ANALISIS PRODUKTIVITAS ALAT PANCANG HYDRAULIC STATIC PILE DRIVER UNTUK MENINGKATKAN KINERJA WAKTU PADA PROYEK APARTEMEN APPLE 3 CONDOVILLA." Construction and Material Journal 3, no. 3 (2021): 207–17. http://dx.doi.org/10.32722/cmj.v3i3.4162.

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The selection of work methods is very important, especially inthe deep pilling installation methode. Hydraulic Static Pile Driver (HSPD) piling equipment is selected since the method uses static pressure without negative impacts (noise and vibration) for residents around the project during piling process. However, it needs to find out effective and efficient levels, and also productivity of this method. This paper will discuss the productivity and some strategies to improve duration level of pilling equipment for Apple 3 Condovilla apartment project. From analysis, it was found that the productivity value was less than one (<1) for day 2 and 4. Several factors affect the productivity of the piling equipment, such as: late start or early quits on the schedule; equipment damage, worker skills, material production, material mobilization, location of pile material, and the final set of piling. Some strategies can be performed to improve duration, such as: workers coordination workers, periodic equipment maintenance, production, mobilization, and placement of materials.

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Singh, Satbir, and Sandeep Singhal. "Productivity Betterment." International Journal of Productivity Management and Assessment Technologies 6, no. 2 (2018): 1–18. http://dx.doi.org/10.4018/ijpmat.2018070101.

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This article describes how instant research explicates the features, analogy, and principles, of manufacturing productivity management in contemporary industrial arenas. It is exceedingly necessary to increase manufacturing production to improve productivity of the company. Current research provides a substitute way-out to optimize the material and workforce resources available in the plant. The authors proposed the implementation of clustering concept with improved tooling for manufacturing. The intended approach stimulated productivity growth by using improved production facilities, which resulted in reduced monthly rejections arising out of manufacturing's critical component. Component production cost was reduced through the use of curbing cycle time. The implementation study magnificently contributed towards productivity enhancement by producing more with less resource input. The experimentation recorded an increase of over16% in monthly production by dint of curtailed cycle time. An average gain of 5.27% in total productivity was achieved.

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Lebowitz, Michael A. "Protagonism and Productivity." Monthly Review 69, no. 6 (2017): 47. http://dx.doi.org/10.14452/mr-069-06-2017-10_5.

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President Chávez, in line with Marx, identified revolutionary praxis as the key link between human development and practice: "We have to practice socialism…and this practice will create us, ourselves, it will change us; if not we won't make it." From this standpoint, the material product of activity is always accompanied by a second product—the human product. Since the human product has historically been neglected in socialist theories of transition, it is worth considering its significance.Click here to purchase a PDF version of this article at the Monthly Review website.

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Bampatsou, Christina, George Halkos, and Christina Beneki. "Energy and material flow management to improve EU productivity." Economic Analysis and Policy 70 (June 2021): 83–93. http://dx.doi.org/10.1016/j.eap.2021.02.003.

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Budiman, I., M. T. Sembiring, and H. Nasution. "Measurement of company productivity which experiencing material supply shortage." IOP Conference Series: Earth and Environmental Science 713, no. 1 (2021): 012002. http://dx.doi.org/10.1088/1755-1315/713/1/012002.

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Рябуха, С. С., П. В. Чернишенко, О. О. Посилаєва, and Л. Г. Серикова. "Productivity and biochemical seed quality of soybean breeding material." Plant Breeding and Seed Production, no. 105 (June 27, 2014): 188–93. http://dx.doi.org/10.30835/2413-7510.2014.42074.

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Nedilska, U. I. "Productivity of miscanthus planting material depending on agrotechnical measures." Interagency thematic scientific collection «Irrigated agriculture», no. 75 (2021): 73–75. http://dx.doi.org/10.32848/0135-2369.2021.75.14.

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Ekins, Paul, Hector Pollitt, Philip Summerton, and Unnada Chewpreecha. "Increasing carbon and material productivity through environmental tax reform." Energy Policy 42 (March 2012): 365–76. http://dx.doi.org/10.1016/j.enpol.2011.11.094.

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Thomas, H. Randolph, Victor E. Sanvido, and Steve R. Sanders. "Impact of Material Management on Productivity—A Case Study." Journal of Construction Engineering and Management 115, no. 3 (1989): 370–84. http://dx.doi.org/10.1061/(asce)0733-9364(1989)115:3(370).

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Goodrum, Paul M., Dong Zhai, and Mohammed F. Yasin. "Relationship between Changes in Material Technology and Construction Productivity." Journal of Construction Engineering and Management 135, no. 4 (2009): 278–87. http://dx.doi.org/10.1061/(asce)0733-9364(2009)135:4(278).

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Kodrat, Kimberly Febrina. "The Improvement of Productivity to Increase Company Competitiveness in PT. X Binjai." Journal of Applied Science, Engineering, Technology, and Education 4, no. 1 (2022): 105–14. http://dx.doi.org/10.35877/454ri.asci1172.

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Productivity is a measurement of the ability for an input in resulting of an output. The productivity for a company is an important element that can create the effectiveness, efficiency, and quality for its operational activities. This research is aimed to design a developmental system of productivity and improvement of productivity which can be applied by the company in increasing the competitiveness. Its methodology used is explanatory research. The productivity is made by measuring data of manpower, material, energy, and capital. The model of productivity improvement is using employee base technique. The research shows that the productivity index of manpower, material, energy and capital is fluctuated. In running the activity of productivity process, there is still inefficiency in distributing the manpower, material, energy, and capital for the company

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Fernando, Yudi, Anas Mathath, and Mohsen Ali Murshid. "Improving Productivity." International Journal of Robotics Applications and Technologies 4, no. 1 (2016): 43–62. http://dx.doi.org/10.4018/ijrat.2016010103.

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The role of robots is becoming substantial for industrial applications and business competitiveness. The purpose of this paper is to review robotic transformation concept and to investigate its business applications in the food industry. The robot transformation in food industry provided a robust support in raising business productivity, reduced cost and enhanced customer's loyalty, besides the food safety and quality. Its service in production systems for material handling and packaging operations is inevitable. Despite the importance of robotics in improving productivity, small scale food companies are often reluctant to invest in robotization of their operations. Since it involves high initial investment, maintenance and costs associated with training skilled employees for programming of robotics. Mainly, two points have raised concerns in the discussion of this paper. First, the robot technology has been enhanced to deliver services for the large scale food companies. Meanwhile, the experiences gained in the food service sector which implement robots can replace the human touch. At the end of this review, several solutions are recommended to shed light on the applications of the robot in the food industry.

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Rusady, Evelyn. "Aplikasi Metode American Productivity Center (APC) Dan Analisis Fishbone diagram Untuk Meningkatkan Produktivitas." Jurnal Tekno 18, no. 2 (2021): 30–38. http://dx.doi.org/10.33557/jtekno.v18i2.1431.

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UKM Kerupuk Acoy is a small and medium business engaged in the production of kerupuk and kemplang which has been established since 2012. After conducting interviews it was found that there were internal problems caused by a decrease in productivity, namely the use of resources that were not yet efficient so that although there was an increase in sales but the benefits are not maximized. To overcome this, it is necessary to apply the APC method to see which inputs have an index below 100% so that improvements are needed to increase productivity. The results of data processing showed a decrease in productivity levels material, energy, and capital inputs. Using fishbone diagram analysis, the root cause of the problem was found, namely low material productivity due to waste of raw materials for flour and cooking oil as well as too dense kerupuk dough form and making kemplang dough rolls too large, low energy productivity due to gas waste due to infrequent cleaning of stove fires, and low productivity. capital because the amount of working capital used is not proportional to the output produced. The solutions to increase productivity that have been implemented are cleaning the stove fire after use, reducing working capital, reducing the size of the cracker print and the diameter of the kemplang rolls, and paying attention to the use of flour and cooking oil so as not to spill on the floor. After implementation, there was an increase in the productivity of material, energy, and capital inputs respectively by 6.28252%; 6.28278%; and 0.05713% which causes an increase in output productivity of 6.283%.

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Kujundžić, Trpimir, Mario Klanfar, Tomislav Korman, and Zlatko Briševac. "Influence of Crushed Rock Properties on the Productivity of a Hydraulic Excavator." Applied Sciences 11, no. 5 (2021): 2345. http://dx.doi.org/10.3390/app11052345.

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Among many factors that influence an excavator’s performance and productivity, the volume of the bucket load and duration of the excavator working cycle are crucial. In this paper, both factors were investigated, including the granulometric composition of the excavated material. The volume of material in the bucket was determined by photogrammetric analysis while the excavator cycle time was measured by analysis of video recordings captured by a digital video camera during the excavator operation. Interconnections between the angle of repose, slewing angle, particle size distribution of material, and their effects on hydraulic excavator productivity were analyzed. It was found that a larger number of fine particles in granular materials with a higher coefficient of uniformity resulted in an increase in the volume of the bucket load. Correlation analysis revealed significant interconnection between the bucket fill factor and swell factor. It was also found that calculation of the production rate according to ISO (International Organization for Standardization) standards was more accurate for materials with a higher angle of repose while the CECE (Committee for European Construction Equipment) standard was more appropriate for materials with lower angles of repose.

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Pelse, Modrite, and Martins Pelss. "Assessment of Biogas Station Impact on Material Productivity of Agricultural Complex." Advanced Materials Research 827 (October 2013): 213–19. http://dx.doi.org/10.4028/www.scientific.net/amr.827.213.

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In search of alternatives for replacing fossil sources with renewable ones, intensive construction of biogas cogeneration power plants started in Latvia in 2008. Maize silage and manure are the most popular substrates used, yet, other alternatives are searched for and tested. It has to be assessed how the energy sector sustainability strategy can impact resource management in the agriculture sector. The aim of this paper is to determine how the introduction of the biogas station in typical agricultural complex consisting of farm and arable land has affected its material productivity. In this paper the biogas production impact on material flows and productivity were evaluated by applying material flow analysis to the case study object which is a traditional intensive farm in Latvia but now reoriented towards the production of electrical and thermal energy. The case study showed that introduction of the biogas station into the traditional farm caused materialization of this economic system, because eco-efficiency (economic output divided by material input) decreased by 41%. The main conclusion is that the biogas production from the biomass is favourable from energetic point of view but current renewable-energy policy in some cases can cause inefficient use of materials putting pressure on surrounding environmental systems and resource depletion.

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Wangidjaja, Welly, Nina Nurdiani, and Widya Katarina. "Increasing Productivity in Stair Construction Using EPS Technology as an Alternative Material." Applied Mechanics and Materials 835 (May 2016): 521–24. http://dx.doi.org/10.4028/www.scientific.net/amm.835.521.

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With the development of building material technology nowadays, the demands to accelerate the working time is a must, and therefore many alternative building materials that can be used, one of which is the EPS (Expanded Polystyrene Panel). The use of EPS makes the construction work would be easier and quicker. For example, the process of making the stairs in the building could use EPS as an alternate material. The aim of using EPS is to accelerate the process of work, save time, and efficiency of implementation without reducing the built quality itself.

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Pratiwi, Setiani Rahma, Lusyiani Lusyiani, and Trisnu Satriadi. "PRODUKTIVITAS DAN RENDEMEN CUKA KAYU DAN ARANG MANGIUM (Acacia mangium) DI KELOMPOK TANI HUTAN ALIMPUNG DESA TIWINGAN LAMA." Jurnal Sylva Scienteae 3, no. 4 (2020): 747. http://dx.doi.org/10.20527/jss.v3i4.2358.

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This study aimed to analyze the productivity and yield of Mangium Wood Vinegar and Charcoal in the Forest Farmer Group Alimpung in Tiwingan Lama Village. The method used to determine productivity is to calculate the amount of raw materials and total time. The yield is measured by counting the amount of raw material and wood vinegar or charcoal produced. The results showed that the average productivity of acacia wood vinegar was 0.037 kg / hour and acacia wood charcoal was 0.230 kg / hour. The processing process produces a yield 7.500% wood vinegar and 46.089% wood charcoal. The productivity of processing mangium wood into wood vinegar and charcoal is 0.267 kg / hour and the yield is 53.589%. Waste generated from the manufacture of wood vinegar and charcoal amounted to 46.411%. Productivity and yield are influenced by tools, raw materials and workers. Keywords: Productivity; yield; wood vinegar; charcoal; mangium

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Akiyama, M. "Risk Management and Measuring Productivity with POAS – Point of Act System." Methods of Information in Medicine 46, no. 06 (2007): 686–93. http://dx.doi.org/10.1055/s-0038-1625429.

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Summary Objectives : The concept of our system is not only to manage material flows, but also to provide an integrated management resource, a means of correcting errors in medical treatment, and applications to EBM (evidence-based medicine) through the data mining of medical records. Methods : Prior to the development of this system, electronic processing systems in hospitals did a poor job of accurately grasping medical practice and medical material flows. With POAS (Point of Act System), hospital managers can solve the so-called, “man, money, material, and information” issues inherent in the costs of healthcare. Results : The POAS system synchronizes with each department system, from finance and accounting, to pharmacy, to imaging, and allows information exchange. We can manage Man (Business Process), Material (Medical Materials and Medicine), Money (Expenditure for purchase and Receipt), and Information (Medical Records) completely by this system. Conclusions : Our analysis has shown that this system has a remarkable investment effect-saving over four million dollars per year-through cost savings in logistics and business process efficiencies. In addition, the quality of care has been improved dramatically while error rates have been reduced – nearly to zero in some cases.

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Горобец and Aleksandr Gorobets. "Productivity of willow plantations microrotational on leached chernozem." Forestry Engineering Journal 5, no. 4 (2015): 26–33. http://dx.doi.org/10.12737/17399.

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The main advantage of plantation grown hardwoods compared to conifers, is their higher productiv-ity. In temperate climates of Europe, including Russia, of all the woody plants, the most productive poplar and willow. While the poplar is characterized by a selectivity for soil-hydrological conditions, under wil-low plantations can be used is unsuitable for growing in moist land. Willow plantations can be used to ob-tain the products (material for production of woven products, raw materials for production of tanning extracts, medicinal substances) that are not produced on plantations of poplar.

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Kundrák, János, Viktor Molnár, István Deszpoth, and Tamás Makkai. "Productivity Considerations in Face Milling." Materials Science Forum 952 (April 2019): 66–73. http://dx.doi.org/10.4028/www.scientific.net/msf.952.66.

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The kinematic versions and applied tools of milling allow for the machining of several surfaces and surface combinations, making it a versatile and widely applied procedure. Face milling for cutting is used for the high productivity manufacturing of prismatic components. Naturally, the enhancement of productivity is a primary goal for manufacturing companies; this study analyzes the efficiency of material removal, which directly influences the time parameters characterizing production performed by face milling. The focus of the paper is to identify the selection of technological data (feed, feed rate, cutting speed, diameter of milling head) that can reduce the machining time or increase the values of material removal rate. Cutting experiments were carried out for machining prismatic components from AlSi9Cu3(Fe) aluminum alloy by diamond tools. It was found that within the performance limits of the manufacturing system it is possible to save a significant amount of manufacturing time while retaining the specified geometric accuracy and surface quality of the component.

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Dhahi, Hasan Nayab, and Hanan Suhabat Abdullah. "The Use of Material Flow Cost Accounting in Supporting the Cost of a Sustainable Product to Achieving Green Productivity1." INTERNATIONAL JOURNAL OF RESEARCH IN SOCIAL SCIENCES & HUMANITIES 13, no. 01 (2023): 189–204. http://dx.doi.org/10.37648/ijrssh.v13i01.017.

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The current study sought to measure the cost of the sustainable product and demonstrate its role in increasing green productivity through the application of the material flow cost accounting technique, which works on the optimal utilization of materials and energy and the reduction of environmental impacts. The research aims to clarify the knowledge foundations for material flow cost accounting and how to measure the cost of a sustainable product, in addition to studying the material flow cost accounting technique that helps reduce the cost of products and increase green productivity. The study concluded that material flow cost accounting contributes to measuring the cost of a sustainable product, which helps the economic unit to reduce costs and determine the environmental costs represented by waste and emissions generated from the production process.

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Yuan, Mei Xia, Xi Bo Wang, Li Jiao, and Shao Nan Liu. "An Optimization Model on Cutting Parameters of Material Processing for High Productivity." Key Engineering Materials 723 (December 2016): 214–19. http://dx.doi.org/10.4028/www.scientific.net/kem.723.214.

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The selection of cutting parameters of material processing such as cutting speed, feed and cutting depth affects product productivity. The optimization of cutting parameters achieves the purpose of raise the productivity. Based on the research of the cutting theory, the turning constraint model and the optimization mathematical model of cutting parameters are established for highest productivity. The optimization process of the complex method is studied. The cutting parameters of the material 310s are optimized by the optimization model based on complex method. The optimized cutting time is shorter 2.06s than the one before the optimization. The production efficiency increases by 15.45%. The results show that the optimization model based on the complex method can improve the productivity of material processing.

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Rajan, A. Senthil, and K. Raja. "Improving the Productivity of the Single Basin Solar still." Applied Mechanics and Materials 592-594 (July 2014): 2374–78. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2374.

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A single basin single slope solar still with 0.82mx 0.81m x 0.75m has been fabricated with G.I sheet and tested with different water depths of 2,3,4cm. Various solid and liquid sensible heat storage materials, Evaporative surface materials are used in the form of billets, in the still. To reduce glass cover temperature the outer glass was cooled by using sprinkler manually at regular interval of time. Theoretical analysis was performed and compared with experimental values. The performances of modified still were compared with conventional still of same size running under the same meteorological conditions. The solid sensible heat storage materials produces48% more productivity than conventional still. Liquid sensible heat storage material produces 19% more than conventional in till. The payback period of the still was 340 days.

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Wiedmann, Thomas O., Heinz Schandl, Manfred Lenzen, et al. "The material footprint of nations." Proceedings of the National Academy of Sciences 112, no. 20 (2013): 6271–76. http://dx.doi.org/10.1073/pnas.1220362110.

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Metrics on resource productivity currently used by governments suggest that some developed countries have increased the use of natural resources at a slower rate than economic growth (relative decoupling) or have even managed to use fewer resources over time (absolute decoupling). Using the material footprint (MF), a consumption-based indicator of resource use, we find the contrary: Achievements in decoupling in advanced economies are smaller than reported or even nonexistent. We present a time series analysis of the MF of 186 countries and identify material flows associated with global production and consumption networks in unprecedented specificity. By calculating raw material equivalents of international trade, we demonstrate that countries’ use of nondomestic resources is, on average, about threefold larger than the physical quantity of traded goods. As wealth grows, countries tend to reduce their domestic portion of materials extraction through international trade, whereas the overall mass of material consumption generally increases. With every 10% increase in gross domestic product, the average national MF increases by 6%. Our findings call into question the sole use of current resource productivity indicators in policy making and suggest the necessity of an additional focus on consumption-based accounting for natural resource use.

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Sviatskii, Vladislav, Pavol Božek, and Mikhail Sokolov. "Determination of Melting Unit Productivity in Synthetic Fibrous Materials Production by Vertical Blowing Method." Acta Technologica Agriculturae 21, no. 4 (2018): 136–40. http://dx.doi.org/10.2478/ata-2018-0025.

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Abstract This paper presents the technology of production of synthetic fibrous materials from PET-raw by vertical blowing method. Fibre production by vertical blowing method is accompanied by complex and specific phenomena; therefore, development of new progressive technologies, high-performance machines and units for producing such materials is impossible without process modelling, which can significantly reduce the number of natural tests, cost and designing time and select optimal operating modes. Molten material motion in the melting unit of the hydrostatic type is determined by means of Poiseuille formula. Furthermore, the paper has proven that the melting unit has the greatest impact on process productivity by means of outlet radius and the pressure change of compressed air acting on the molten material surface. Increase in the height of the molten material column in the main cylindrical chamber of melting unit also leads to an increase in process productivity.

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Grünberg, Mario, Kim K. Kuchemüller, Katrin Töppner, and Ricarda A. Busse. "Scalable, Robust and Highly Productive Novel Convecdiff Membrane Platform for mAb Capture." Membranes 12, no. 7 (2022): 677. http://dx.doi.org/10.3390/membranes12070677.

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The recombinant monoclonal antibody capture step represents the current bottleneck in downstream processing. Protein A resins are diffusion-limited chromatography materials which require low flow rates to achieve a binding capacity above 30 g L−1 with the result of low productivity. Here, we present a novel chromatography membrane combining superior binding capacities with high flow rates for high productivity while achieving comparable product quality as state-of-the-art protein A resins. Further, we demonstrate full scalability of this convecdiff technology with experimental data demonstrating suitability for bioprocessing at different scales. This technology results in more than 10-fold higher productivity compared to Protein A resins, which is maintained during scale up. We demonstrate the influence of residence times, feed titers and the cleaning regime on productivity and indicate optimal utilization of the convecdiff membrane based on feed titer availability. The underlying high productivity and short cycle times of this material enable the purification of monoclonal antibodies with 10-times less chromatography material used per batch and utilization of the membrane within one batch. Provided in disposable consumables, this novel technology will remove column handling in bioprocesses and resin re-use over multiple batches.

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Pinno, Bradley, and Nicolas Bélanger. "Estimating trembling aspen productivity in the boreal transition ecoregion of Saskatchewan using site and soil variables." Canadian Journal of Soil Science 91, no. 4 (2011): 661–69. http://dx.doi.org/10.4141/cjss10082.

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Pinno, B. D. and Bélanger, N. 2011. Estimating trembling aspen productivity in the boreal transition ecoregion of Saskatchewan using site and soil variables. Can. J. Soil Sci. 91: 661–669. The productivity of trembling aspen, as expressed by site quality index (SQI), in natural stands growing on three different soil parent material types (fluvial, lacustrine and glacial till) in the boreal transition ecoregion of Saskatchewan was evaluated by using soil and site variables. The soil and site variables used were either general categorical variables, such as parent material and ecosite, or continuous variables, such as soil texture (percent sand or clay), pH, carbon, nitrogen, C:N ratios, and elemental composition. It was not possible to reliably estimate SQI using only categorical site variables or continuous soil variables when all plots were grouped together. However, when plots were grouped by parent material type, over 45% of the variability in trembling aspen productivity was explained using the common soil measurements of texture and pH. In estimating SQI, there was an interaction between both pH and soil texture with parent material. On fluvial and lacustrine parent materials, increased clay content was positively correlated with SQI, but was negatively correlated with SQI on till, while pH was positively correlated with SQI on fluvial parent material, but negatively on lacustrine. Including more sophisticated measures of soil nutrient availability in the forest floor and BC horizons did not improve the SQI prediction. This study indicates that it is possible to estimate trembling aspen productivity using simple site and soil variables, provided that differences in soil properties within parent material groupings are considered in the analysis.

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Prakhova, N. Ya. "EVALUATION OF SPRING CAMELINA SOURCE MATERIAL FOR SELECTION ON PRODUCTIVITY." TAURIDA HERALD OF THE AGRARIAN SCIENCES 2 (22) (June 9, 2020): 116–24. http://dx.doi.org/10.33952/2542-0720-2020-2-22-116-124.

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Schandl, Heinz, Marina Fischer-Kowalski, James West, et al. "Global Material Flows and Resource Productivity: Forty Years of Evidence." Journal of Industrial Ecology 22, no. 4 (2017): 827–38. http://dx.doi.org/10.1111/jiec.12626.

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Scott, Kate, Jannik Giesekam, John Barrett, and Anne Owen. "Bridging the climate mitigation gap with economy‐wide material productivity." Journal of Industrial Ecology 23, no. 4 (2018): 918–31. http://dx.doi.org/10.1111/jiec.12831.

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AP, Pooja, and Ameena M. "Quality planting material for productivity enhancement in tropical tuber crops." International Journal of Chemical Studies 8, no. 4 (2020): 1931–36. http://dx.doi.org/10.22271/chemi.2020.v8.i4t.9912.

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Bardzell, Shaowen. "ENCHANTED ARTIFACTS: SOCIAL PRODUCTIVITY AND IDENTITY IN VIRTUAL MATERIAL ECOLOGIES." Artifact 2, no. 2 (2008): 123–36. http://dx.doi.org/10.1080/17493460903020141.

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Sviatskii, Vladislav, Pavol Bozek, Mikhail Sokolov, and Zygmunt Łukaszczyk. "The Design Technique of Melting Units for Production of Synthetic Fibrous Materials by Vertical Blowing Method." Management Systems in Production Engineering 27, no. 1 (2019): 29–32. http://dx.doi.org/10.1515/mspe-2019-0005.

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AbstractThis paper presents the technology of production of synthetic fibrous materials from PET-row by vertical blowing method. The formation of fibers from the melt of thermoplastics by vertical blowing method is accompanied by complex and specific phenomena, so creation of new progressive technologies, high-performance machines and units for producing such materials is impossible without process modeling, which can significantly reduce the number of natural tests, cost and development time and choose optimal operating modes. The motion of the molten material in the melting unit of the hydrostatic type is determined from the Poiseuille formula. Also in the article proved that the greatest impact on process productivity is made by the melting unit, exactly by outlet radius and the pressure change of compressed air, acting on the molten material surface. The increase in the height of the molten material column in the main cylindrical chamber of melting unit also leads to increase of process productivity.

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Sviatskii, Vladislav, Andrea Mudriková, Radovan Holubek, Jakub Horník, and Mikhail Sokolov. "The Design of Melting Units for Production of Synthetic Fibrous Materials by Vertical Blowing Method from PET Raw Materials." Materials Science Forum 952 (April 2019): 216–22. http://dx.doi.org/10.4028/www.scientific.net/msf.952.216.

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This paper presents the technology of production of synthetic fibrous materials from PET-raw by vertical blowing method. The formation of fibers from the melt of thermoplastics by vertical blowing method is accompanied by complex and specific phenomena, so creation of new progressive technologies, high-performance machines and units for producing such materials is impossible without process modeling, which can significantly reduce the number of natural tests, cost and development time and choose optimal operating modes. The motion of the molten material in the melting unit of the hydrostatic type is determined from the Poiseuille formula. Also in the article proved that the greatest impact on process productivity is made by the melting unit, exactly by outlet radius and the pressure change of compressed air, acting on the molten material surface. The increase in the height of the molten material column in the main cylindrical chamber of melting unit also leads to increase of process productivity.

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Ameh, Oko, and Emeka Osegbo. "Study of relationship between time overrunand productivity on construction sites." International Journal of Construction Supply Chain Management 1, no. 1 (2011): 56–67. http://dx.doi.org/10.14424/ijcscm101011-56-67.

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The history of the construction industry worldwide is full of projects that were completed with significant time and cost overruns. In an attempt to reverse this trend, this study aims at establishing the relationship between time overrun and labour productivity on construction sites in Lagos, Nigeria. 43 technical and management staff of some medium and large construction firms based in Lagos, Nigeria were sampled and administered a questionnaire survey. The questionnaire contained 18 causes of project time overrun and 14 causes of low labour productivity which had been identified from the literature reviewed. With these a relationship between project time overrun and low labour productivity was established. Both descriptive and inferential statistics were used in analyzing the data. Results indicate that inadequate funds for the project, inadequate planning before project takeoff, inadequate tools and equipment and delay in delivery of material top the list of major causes of time overrun while the use of wrong construction methods, inadequate construction materials and inaccurate drawing/specification are the key factors causing low labour productivity on construction sites. Significant negative relationship was found between time overrun and labour productivity in construction sites in Nigeria. The study concludes by recommending that early appointment of project managers could ensure proper management of both the human and material resources that could guarantee improved productivity and ultimately save projects from time overrun.

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Tosso Pineda, Lucia Hiroko, Atilio Rodolfo Buendia Giribaldi, Miguel Antonio Rojas Quispe, Mayumi Guendi Espinoza Santo, Leonidas Manuel Bravo Rojas, and Erika Mirella Gutierrez Sullca. "Improving the inventory storage process applying the material requirement planning (MRP) methodology." Journal of Scientific and Technological Research Industrial 2, no. 1 (2021): 02–04. http://dx.doi.org/10.47422/jstri.v2i1.8.

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The role of storage in inventories has a relevant role in the performance of an organization when meeting market demand. Storage must be correctly managed for loss of material, lack of space and loss of productivity. The implementation of the MRP methodology improves organizational productivity by implementing it in inventory storage.

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Journal articles on the topic 'Material productivity'

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