Journal articles: 'Mining engineering. Metallurgy'

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Halasi, Tibor, Snezana Kalamkovic, and Stanko Cvjeticanin. "Academic roots of chemical engineering in XVIII and XIX century in middle Europe." Chemical Industry 64, no. 2 (2010): 157–63. http://dx.doi.org/10.2298/hemind091120004h.

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Roots of chemical engineering in Middle Europe lead to the first mining and metallurgy academies, established in VIII century in Upper Hungaria and in Bohemian Kingdom. Chemical engineering skills originate from ancient Egyptian handicraft, alchemy, technical chemistry, pneumochemistry and phlogiston chemistry. Development of mining and metallurgy coincided with great scientific discoveries and industrial revolution. In Middle Europe, the first such academies were opened in St. Joachimstahl and in Schemnitz, and the first Serbian mining engineers Djordje Brankovic, Vasilije Bozic and Stevan Pavlovic studied, as well as the first chemistry professor of the High School in Belgrade, Mihajlo Raskovic. Eminent professors were employed by the Schemnitz academy, such as: Nicol Jacquin, Giovanni Scopoli, Ignaz von Born and Christian Doppler. It is important to emphasize that Shemnitz practiced the first modern, practical laboratory education. In VIII century, Schemnitz Mining and metallurgy academy was the most contemporary educational insistution for engineers. However, in XIX century, mining and metallurgy academies stagnated, due to the replacement of professional academies with polytechnic schools, technical universities and scientific research institutes.

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Readey, D. W. "Specific Materials Science and Engineering Education." MRS Bulletin 12, no. 4 (June 1987): 30–33. http://dx.doi.org/10.1557/s0883769400067762.

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Forty years ago there were essentially no academic departments with titles of “Materials Science” or “Materials Engineering.” There were, of course, many materials departments. They were called “Metallurgy,” “Metallurgical Engineering,” “Mining and Metallurgy,” and other permutations and combinations. There were also a small number of “Ceramic” or “Ceramic Engineering” departments. Essentially none included “polymers.” Over the years titles have evolved via a route that frequently followed “Mining and Metallurgy,” to “Metallurgical Engineering,” to “Materials Science and Metallurgical Engineering,” and finally to “Materials Science and Engineering.” The evolution was driven by recognition of the commonality of material structure-property correlations and the concomitant broadening of faculty interests to include other materials. However, the issue is not department titles but whether a single degree option in materials science and engineering best serves the needs of students.Few proponents of materials science and engineering dispute the necessity for understanding the relationships between processing (including synthesis), structure, and properties (including performance) of materials. However, can a single BS degree in materials science and engineering provide the background in these relationships for all materials and satisfy the entire market now served by several different materials degrees?The issue is not whether “Materials Science and Engineering” departments or some other academic grouping of individuals with common interests should or should not exist.

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Townsend, I. "Automatic pressure filtration in mining and metallurgy." Minerals Engineering 16, no. 2 (February 2003): 165–73. http://dx.doi.org/10.1016/s0892-6875(02)00266-2.

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Sutherland, Ken. "Mining and metallurgy: The role of filters in mining and quarrying." Filtration & Separation 47, no. 1 (January 2010): 24–27. http://dx.doi.org/10.1016/s0015-1882(10)70034-3.

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Oznobikhina, L. A., and S. A. Rodionova. "The influence of fuel and energy systems on atmospheric air pollution by enterprises of the metallurgical and machine-building complex." IOP Conference Series: Earth and Environmental Science 979, no. 1 (February 1, 2022): 012166. http://dx.doi.org/10.1088/1755-1315/979/1/012166.

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Abstract Currently, billions of tons of industrial waste from ferrous and non-ferrous metallurgy enterprises have accumulated in Russia. Ferrous metallurgy is one of the most environmentally dirty industries. The history of the environmental problem of the city of Nizhny Tagil, goes back to the beginning of the creation of the mining industry of the Urals. The development of mining, chemical, metallurgical production, mechanical engineering is formed by the increasing pressure of anthropogenic factors on the environment. Emissions of industrial enterprises, energy systems and transport into the air, at the present stage of the development of science and technology, have reached such a size that in some areas, especially in large industrial centers, pollution levels are several times higher than permissible sanitary standards.

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Shao, An-lin. "Digital Mine Research and Practice Based on Mining and Metallurgy System Engineering." Frontiers of Engineering Management 3, no. 1 (2016): 67. http://dx.doi.org/10.15302/j-fem-2016006.

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Petkovic, Sofija. "The traces of roman metallurgy in Eastern Serbia." Journal of Mining and Metallurgy, Section B: Metallurgy 45, no. 2 (2009): 187–96. http://dx.doi.org/10.2298/jmmb0902187p.

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The archaeological traces of the Roman mining and metallurgy in eastern Serbia are rather frequent but insufficiently studied and published. Three mining-metallurgical regions abounding in gold, silver, copper, iron and lead could be distinguished there: 1. the upper course of the Pek river, metalla Pincensia, 2. the area between Bor, Zlot, Crna Reka and Rgotina and 3. the area in the river basin of Beli Timok, two latter ones had been organized as territoria metallorum. The archeometallurgical sites confirmed by investigations are: Kraku lu Jordan at the confluence of the Brodica river and the Pek river, Rudna Glava, Tilva Ros in Bor, Gamzigrad - Romuliana, Rgotina near Zajecar and Timacum Minus in the village Ravna near Knjazevac. Roman mining-metallurgical activities in eastern Serbia flourished from the end of the 3rd century, were interrupted by the invasion of Huns in AD 441. and restored in the time of emperors Anastasius and Justin I, in the end of the 5th - beginning of the 6th centuries. The Roman mining-metallurgical centers functioned in the 6th century until the Slav invasion in the beginning of the 7th century.

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BOMSEL, OLIVER, and PAULO DE SA. "Mining and Metallurgy: Policies Adopted by Northern Hemisphere Operators." Mineral Processing and Extractive Metallurgy Review 3, no. 1-4 (March 1988): 221–29. http://dx.doi.org/10.1080/08827508808952623.

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Lyashenko, V. I., O. E. Khomenko, T. V. Chekushina, T. V. Dudar, and I. A. Lisovoy. "Technologies and equipment for mining and metallurgy waste management." Mining informational and analytical bulletin 2021, no. 12 (2021): 132–48. http://dx.doi.org/10.25018/0236_1493_2021_12_0_132.

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AO, Dan Wood. "Geology and Mining: An Introduction and Overview." SEG Discovery, no. 115 (October 1, 2018): 1–21. http://dx.doi.org/10.5382/geo-and-mining-01.

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Abstract Postdevelopment studies show that, once in operation, about 70% of mines perform below the prediction of their feasibility studies, with underperformance usually caused by deficiencies in the collection of primarily geology related data prior to designing the mine and planning its operation. A major reason for these deficiencies is probably a generally narrow understanding by many geologists of metallurgy as well as geotechnical and mining engineering. Additionally, geologists often do not appreciate the types and quantities of data required by metallurgists, geotechnical engineers, and mining engineers for mine design, planning, and operations. Critically, there is commonly inadequate communication between all four professional groups. For obvious and logical reasons, the principal focus of geologists has generally been considered the discovery of a mineral deposit and subsequent resource definition and estimation of its grade and tonnage, leading to the creation of detailed geologic and grade models of the deposit. While grade and tonnage are cornerstones to mine development, equally important to mine design is the geotechnical model, which is constructed progressively over three stages of mining study using information obtained from four separate geology-related models. Enhanced understanding of mining and metallurgy by geologists plus appreciation of the metallurgical and mining uncertainties inherent in geologic data by metallurgists and geotechnical and mining engineers can contribute to significantly improved mining outcomes.

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Vukovic, Milovan, and Ari Weinstein. "Kosovo mining, metallurgy, and politics: Eight centuries of perspective." JOM 54, no. 5 (May 2002): 21–24. http://dx.doi.org/10.1007/bf02701690.

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Shvachych, G. G., O. V. Ivaschenko, V. V. Busygin, and Ye Ye Fedorov. "Parallel computational algorithms in thermal processes in metallurgy and mining." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 4 (August 2018): 129–37. http://dx.doi.org/10.29202/nvngu/2018-4/19.

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Gendler, S. G., M. V. Tumanov, E. A. Prokhorova, and V. G. Shеkhmanov. "ASSESSMENT OF THE PROSPECTS OF USING INDUSTRIAL EXOSKELETONS TO REDUCE LABOR IN THE COAL INDUSTRY." News of the Tula state university. Sciences of Earth 4, no. 1 (2021): 209–22. http://dx.doi.org/10.46689/2218-5194-2021-4-1-209-222.

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the field of occupational safety. In the coal sector of Russia, these indicators remain unacceptably high. In the structure of professional diseases of the Joint-Stock Company "SUEK", the most frequent are diseases caused by physical overload. It is worth noting that the high severity of labor is characteristic of working professions at mining, construction, mechanical engineering and metallurgy enterprises. The purpose of this study is to analyze occupational diseases in the mining industry and to consider the possibility of using an exo-skeleton in workplaces with high labor intensity.

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Adorjan, L. A. "90th A.G.M. of the Canadian institute of mining and metallurgy." Minerals Engineering 1, no. 3 (1988): 276–77. http://dx.doi.org/10.1016/0892-6875(88)90056-8.

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Ramírez Masferrer, Javier Angel, Juan Herrera Herbert, and Paz Kindelan Echevarría. "Innovative Development of Student Skills in Raw Materials Engineering Programs." U.Porto Journal of Engineering 8, no. 1 (February 16, 2022): 23–33. http://dx.doi.org/10.24840/2183-6493_008.001_0004.

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The CDIO Initiative (Conceive, Design, Implement, Operate), successfully adopted in those engineering disciplines where the final result is the design and engineering of an innovative product, had not achieved such penetration, however, in other areas such as mining, metallurgy, or civil engineering where conception, design, and implementation do not result in a product, but in a complex process or system (e.g., mining extraction). Since 2015, financed with funds from the European Union, different projects have been developed to implement this methodology in these areas, which have continued later with the universities' own funds. The objective of this work is to show one of these projects of the educational innovation group "Innovatio Educativa Tertio Millenio" of the Technical University of Madrid during the past academic years 2019-2020 and 2020-2021, working with two specific techniques such as active learning and design thinking. By making students solve real problems and come up with realistic solutions, they worked on key competencies and could experiment without fear of failure.

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Vaishar, Antonín. "Development of the settlement system in the Ostrava agglomeration and possibilities of its restructuring." Geografie 107, no. 2 (2002): 171–88. http://dx.doi.org/10.37040/geografie2002107020171.

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Large-scale coal-mining regions were showing specific settlement from the 19th century. The original typical system with towns as centres and their hinterlands was remodelled to a mosaic of coal pits, miner colonies (later housing quarters) and industrial factories interwoven with a dense web of infrastructure. The region of Ostrava is one of examples; here the mining of black coal linked up with the metallurgy of iron, heavy engineering and chemical industry. The region's economic base has experienced a restructuring in connexion with social changes after the year 1989 with individual towns seeking new functions and place in the system of settlement.

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Frolova, Victoria, Olga Dolina, and Tatyana Shpilkina. "Investment Risk Management at Mining Enterprises." E3S Web of Conferences 105 (2019): 01054. http://dx.doi.org/10.1051/e3sconf/201910501054.

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The development of the Russian economy requires an increase in production factors, including energy, fuel and raw materials. Sustainable functioning of mining enterprises has an impact on the development of such industries as metallurgy, engineering, road construction and predetermines the development of the country’s economy as a whole. The article substantiates the need to form an investment risk management system in the mining industry to encourage expansion of environment-saving measures funding. The stages of investment risk management are proposed and their content is disclosed. The most significant types of investment risks and uncertainties in assessing geological exploration investment projects in the mining industry are considered. The recommendations for considering the factors of uncertainty and risk when evaluating the effectiveness of environmental and geological exploration investment projects to use maximum information about the conditions for the implementation of projects. For risk assessment, various qualitative and quantitative methods have been proposed, and the advantages of the Monte-Carlo simulation method are shown.

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Jovanovic, B. "Beginning of the metal age in the central Balkans according to the results of the archeometallurgy." Journal of Mining and Metallurgy, Section B: Metallurgy 45, no. 2 (2009): 143–48. http://dx.doi.org/10.2298/jmmb0902143j.

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The gradual development of the primary copper metallurgy in Balkans starts with production of small jewelry pieces and ends with the serial production of massive tools and weapons. It is confirmed that this metallurgy depended on the contemporary mining, i.e. the available sources of the raw materials. It is also corroborated by the discovery of two Early Eneolithic copper mines: Rudna Glava in Eastern Serbia and Ai-Bunar in Bulgaria /first half and the middle of the 5th millennium BC/. These mines are also the evidence for the local exploitation of the carbonate copper minerals - malachite and azurite. The technology employed is close to the former flint mining in the Late Neolithic; massive pebbles obtained from the neighboring alluvial deposits were used as mining hammers. Identical technology was employed in the mines dating from the later periods /Rudnik, Central Serbia, Jarmovac, Priboj na Limu/. The Vinca culture of the central Balkan followed all metallurgical phases of introduction of metal and use of the carbonate ores /Gradac I - III phase/. This long process of including the metal in wider use lasted generally from the middle of the 5th millennium BC to the end of the 4th millennium BC, i.e. to the appearance of the Bronze Age.

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Meech, J. A. "93rd annual general meeting of the Canadian institute of mining, metallurgy and petroleum." Minerals Engineering 5, no. 1 (January 1992): 108–10. http://dx.doi.org/10.1016/0892-6875(92)90013-y.

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Moni, Vlastimil, Petr Klouda, Tomáš Miletič, František Helebrant, Luboš Donát, Jan Blata, and Michal Řehoř. "Evaluation of Tooth No. 2674 and ESCO Tooth 3D models." Multidisciplinary Aspects of Production Engineering 2, no. 1 (September 1, 2019): 345–55. http://dx.doi.org/10.2478/mape-2019-0034.

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Abstract The expense of restoring of excavators cutting bodies is increasing these days in the Most Basin area, primarily the replacement of tooth because of abrasion expense. The main reason is the complicated geological situation of overburden rocks, first of all the occurrence of sands and hard structures in the overburden cuts rocks in the deep horizons of open pit mines. Description of the first part of the strength analysis and applicability of 3D models of the tooth serial number 2673 and the tooth ESCO Super V39VYH with application of finite element method (FEM) is the main topic of this article. This research is the stage of the project based on optimisation of the shape and primarily the material used during manufacturing of the mining and ground machines cutting bodies in concrete mining conditions. The research is going on with application of new knowledge in the field of material engineering, metallurgy, cryogenic and nanotechnology. The main target is the increasing of mining process efficiency and the mining machines key node lifetime. Research of the excavator tooth parameters described in this article is very important part of the research.

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Grigoriev, Sergei, Tatiana Tarasova, Andrey Gusarov, Roman Khmyrov, and Sergei Egorov. "Possibilities of Manufacturing Products from Cermet Compositions Using Nanoscale Powders by Additive Manufacturing Methods." Materials 12, no. 20 (October 19, 2019): 3425. http://dx.doi.org/10.3390/ma12203425.

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Complicated wear-resistant parts made by selective laser melting (SLM) of powder material based on compositions of metal and ceramics can be widely used in mining, oil engineering, and other precision engineering industries. Ceramic–metal compositions were made using nanoscale powders by powder metallurgy methods. Optimal regimes were found for the SLM method. Chemical and phase composition, fracture toughness, and wear resistance of the obtained materials were determined. The wear rate of samples from 94 wt% tungsten carbide (WC) and 6 wt% cobalt (Co) was 1.3 times lower than that of a sample from BK6 obtained by the conventional methods. The hardness of obtained samples 2500 HV was 1.6 times higher than that of a sample from BK6 obtained by the traditional method (1550 HV).

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Petrov, Yu S., E. A. Khadzaragova, A. A. Sokolov, G. Kh Sharipzyanova, and A. V. Taskin. "Acquisition, transmission and storage of information on production-induced cycle in mining and metallurgy." Mining informational and analytical bulletin, no. 11-1 (2020): 178–88. http://dx.doi.org/10.25018/0236-1493-2020-111-0-178-188.

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Romero, Maximina, Isabel Padilla, Manuel Contreras, and Aurora López-Delgado. "Mullite-Based Ceramics from Mining Waste: A Review." Minerals 11, no. 3 (March 23, 2021): 332. http://dx.doi.org/10.3390/min11030332.

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Mullite (3Al2O3·2SiO2) is an aluminosilicate characterized by excellent physical properties, which makes it an important ceramic material. In this way, ceramics based on mullite find applications in different technological fields as refractory material (metallurgy, glass, ceramics, etc.), matrix in composite materials for high temperature applications, substrate in multilayer packaging, protective coatings, components of turbine engines, windows transparent to infrared radiation, etc. However, mullite is scarce in nature so it has to be manufactured through different synthesis methods, such as sintering, melting-crystallization or through a sol-gel route. Commonly, mullite is fabricated from pure technical grade raw materials, making the manufacturing process expensive. An alternative to lowering the cost is the use of mining waste as silica (SiO2) and alumina (Al2O3) feedstock, which are the necessary chemical compounds required to manufacture mullite ceramics. In addition to the economic benefits, the use of mining waste brings out environmental benefits as it prevents the over-exploitation of natural resources and reduces the volume of mining waste that needs to be managed. This article reviews the scientific studies carried out in order to use waste (steriles and tailings) generated in mining activities for the manufacture of clay-based ceramic materials containing mullite as a main crystalline phase.

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IONESCU, Lavinel G. "ANDRÉS MANUEL DEL RIO, DISCOVERER OF VANADIUM." SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 5, no. 5 (December 20, 1997): 1–6. http://dx.doi.org/10.48141/sbjchem.v5.n5.1997.4_1997.pdf.

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Andres Manuel Del Rio was born in Madrid in 1764 and died in Mexico City in 1849. He studied mineralogy, geology, metallurgy, and mining engineering at the Royal Academy of Mines of Almaden and the Patriotia Seminary of Vergara. In 1871, with a stipend from the Spanish Crown, he continued his studies in Paris, Freiberg, Chemnitz, and other scientific centers throughout Europe, particularly in metallurgy. In 1794 at the invitation of Don Fausto Delhuyar, who together with his brother Juan Jose Delhuyar discovered tungsten in 1783, Andres Manuel Del Rio went to Mexico where he was a professor at the SahooZ of Mines for more than fifty years, until his death. In 1801, while analyzing a lead mineral from Zimpan, Hidalgo, Mexico, he discovered a.mew element that he called pancuronium or erythronium, because of the red colors, aharaateris·tia of its salts. In 183Z, the Swedish chemist NiZs Gabriel Sez>fstz>IJm z>edisaovered erythronium in an iron ore from Taberg, Smaland, Sweden, and named it vanadium in honor of the Scandinavian goddess Vanadis.

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Qiao, Peng, Yan Qiu Xia, and Xiang Yu Ge. "Tribological Properties of the Overbased Calcium Sulfonate Complex Greases Containing Different Lubricant Additives." Advanced Materials Research 645 (January 2013): 133–36. http://dx.doi.org/10.4028/www.scientific.net/amr.645.133.

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Overbased calcium sulfonate complex greases have excellent friction and wear properties and have been widely used in metallurgy and mining equipment. The effects and tribological performance of molybdenum dialkydithiocarbamate (MoDTC) and ionic liquid 1-(2-hydroxyethyl)-3-methylimidazolium bis (triﬂuoromethylsulfonyl) imide ([C2OHMim][NTf2]), 1-(2-hydroxyethyl)-3-hexylimidazolium bis (triﬂuoromethylsulfonyl) imide ([C2OHHim][NTf2s]), added in overbased calcium sulfonate complex grease as additives were investigated by using reciprocating ball-on-disk sliding friction tester. The results showed that the two kinds of additives with a certain range of concentration could improve the tribological properties of greases.

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Kornilkov, SV. "Mineral resources strategy and scientific-based management." IOP Conference Series: Earth and Environmental Science 991, no. 1 (February 1, 2022): 012021. http://dx.doi.org/10.1088/1755-1315/991/1/012021.

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Abstract The paper discusses the issues of implementation of the Mineral Resources Strategy of the Russian Federation till 2035. The main objective is to develop a coordinated regional strategy that takes into account the planned structural changes in industry for the implementation of priority programs of engineering, metallurgy, industry of building materials and other industries, based on Russian and the world trends of minerals consumption in conditions of deterioration of quality and availability of raw materials. The paper formulates the main regional organizational and technological conditions to form the mineral resources programs with regard to the main trends of development and predicted technological changes in the mining industry.

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Lubyanoi, Dmitry, Evgeny Pudov, Evgeny Kuzin, and Olga Semenova. "Application of the optimally alloyed cast irons in order to increase the durability and to ensure the cost reduction of mining and metallurgical products." E3S Web of Conferences 303 (2021): 01005. http://dx.doi.org/10.1051/e3sconf/202130301005.

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The article shows the relevance of the use of alloyed cast iron in mining and metallurgical engineering. The article discusses the technologies for producing naturally alloyed cast iron. For working bodies and friction units of mining machines, such as pumps, coal pumps, hydrocyclones, crushers and mills. The main type of wear for them is abrasive. To increase the wear resistance of cast iron the production of cast iron has not been sufficiently studied yet. Although the use of cast iron in a complex alloyed with manganese, silicon, chromium, titanium and vanadium has been studied. The article studies the influence of manganese, titanium and vanadium on the mechanical properties and performance of machine parts and products of mining and metallurgical production in contact with high-temperature and highly abrasive media. The rational content of titanium and vanadium in gray cast irons is established in the range of 0.05-0.1%, which ensures their heat resistance and increases their wear resistance. The content of these elements can be increased to 0.07-0.12%. Bushings made of this cast iron have the required wear resistance and can increase the operational reliability of the equipment in the conditions of mining and metallurgical production. They also replace non-ferrous metals, as well as products obtained by powder metallurgy methods.

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Petrovic, Nevenka, Brankica Andjelic, and Suzana Stankovic. "The chemicals in laboratory have no appropriate quality." Chemical Industry 62, no. 2 (2008): 90–92. http://dx.doi.org/10.2298/hemind0802090p.

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Laboratory of Department for Chemical Technical Control (CTC) of the Mining and Metallurgy Institute has been accredited since January 2006. The ultimate intend of such laboratory is the international recognition of analyzing results. Due to a need of obeying all laws, regulations and standards, a description of one segment example, namely the quality of chemicals for analyzing was given in this work. Bad quality of chemicals is included into the "Black List of Chemicals". This List also includes chemicals, and comments of their bad quality.

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Golik, V. I., and A. V. Titova. "Improving the metallurgical resource base through combining ore mining technologies." Mining Industry Journal (Gornay Promishlennost), no. 5/2022 (November 3, 2022): 105–11. http://dx.doi.org/10.30686/1609-9192-2022-5-105-111.

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Relevance. One of the challenges in the development of mining and processing technologies for solid metal resources is the insufficient use of the metal mining technologies in underground development of ore deposits. The purpose of the study. By analyzing the aspects of mining production, to determine the priority directions in the extraction and enrichment of metal ores based on the combination of technologies for the development of deposits. Research methods. Analysis of the efficiency indicators of mining production using information about the improvement of technologies in the past. Forecasting the ways of development and detailing the concept of breakthrough improvement of the processes of extraction and processing of solid geo-resources in the present and future. The results of the study. Information is provided on the completeness of extraction of metal ores from the subsurface and their use in enrichment. The importance of recycling metal-containing waste as technogenic geo-resources is shown, and the current state of this problem is characterized. A breakthrough direction of strengthening the geo-resource base of mainly non-ferrous metallurgy is formulated – the leaching of metals from ores in underground blocks and activators of the disintegrator type during the combination of traditional and new technology. The information obtained experimentally about new technologies with a description of their advantages is given. The problems of strengthening the geo-resource base of industry are formulated. Economic models are proposed to determine the efficiency of combining extraction and processing technologies. Conclusions. The assessment of the regularities of the development of technologies for the extraction and enrichment of solid metal geo-resources is possible on the basis of a comprehensive analysis of aspects of mining production. The priority direction of extraction and enrichment of solid metal geo-resources is the combination of traditional and new technologies.

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Sobenin, I. V., N. Yu Antoninova, A. I. Usmanov, and K. V. Shepel. "Influence of material composition of biological pond bed on waste water treatment in mining and metallurgy industries." Mining informational and analytical bulletin, no. 5-2 (2021): 273–82. http://dx.doi.org/10.25018/0236_1493_2021_52_0_273.

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Rogov, V. "EVALUATION OF THE PROSPECTS FOR THE DEVELOPMENT OF THE IRKUTSK REGION FERROUS METALLURGY BASED ON THE RESOURCES OF THE EASTERN SAYANS AND INNOVATIVE TECHNOLOGIES." TRANSBAIKAL STATE UNIVERSITY JOURNAL 28, no. 2 (2022): 19–28. http://dx.doi.org/10.21209/2227-9245-2022-28-2-19-28.

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The creation of the East Siberian metallurgical base is an indispensable condition for the implementation of reindustrialization processes, including industrial and civil construction, engineering for the mining industry, the chemical industry, etc. The existing opportunities are the formation of a promising heavy-duty iron ore base for the Urals and Western Siberia based on the Bakcharskoye deposit causes the creation in Eastern Siberia of mining and metallurgical enterprises, mainly of local importance. Perspective restrictions on the use of natural gas in iron production, environmental and investment restrictions for blast-furnace production determine the use of liquid-phase iron reduction technologies using thermal coals. The concentration of groups of iron ore deposits in the Irkutsk region makes it possible to create mining and metallurgical plants near the cities of Ust-Ilimsk, Taishet, Tulun. The involvement of significant resources of titanomagnetites is possible when solving the problem of developing more efficient technologies for producing metallic titanium. The object of the research is resources of iron-ore and coal deposits in the Irkutsk region in the process of assessing the possibility and efficiency of their use in the prospective mining and metallurgical industries. The subject of the research is technological and resource prerequisites for location of large objects of mining-metallurgical complexes for direct production of iron in Irkutsk region. The aim of the research is to identify promising deposits and occurrences of iron ore and coal raw materials, taking into account the possibilities of application of existing technical and technological solutions for transportation, enrichment and metallurgical processing for complex processing. The objectives of the research are: to assess the potential of large iron ore deposits of Western Siberia using new technologies to meet the needs of metallurgical enterprises in the Urals and Kemerovo region; to determine a new concept of promising metallurgical base of Eastern Siberia; to determine a promising base for the placement of mining and metallurgical plants in the Irkutsk region. Methodology and research methods. The research methodology is based on a systematic representation of the mining-metallurgical complex created on the territorial combination of raw materials and fuel in accordance with the theory of energy-production cycles, in which promising (innovative) technologies are implemented. When determining the degree of priority development of titanium-magnetite deposits, the possibility of using the resulting titanium-containing products is taken into account. It is also shown that the main metallurgical base of the Irkutsk region can be created in the area of the city of Tulun on the basis of the use of iron ore resources of the Eastern Sayan. The fuel base is provided by the resources of the Irkutsk coal basin. To reduce investment and current costs associated with the transportation of coal and ore or concentrates, it is proposed to use slurry pipelines

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Glowacz, Adam, Andrzej Glowacz, and Zygfryd Glowacz. "Recognition of Thermal Images of Direct Current Motor with Application of Area Perimeter Vector and Bayes Classifier." Measurement Science Review 15, no. 3 (June 1, 2015): 119–26. http://dx.doi.org/10.1515/msr-2015-0018.

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AbstractInfrared thermography can measure the temperature of a surface remotely. In this article authors present a diagnostic method of incipient fault detection. The proposed approach is based on pattern recognition. It uses monochrome thermal images of the rotor with the application of an area perimeter vector and a Bayes classifier. The investigations have been carried out for direct current motor without faults and motor with shorted rotor coils. The measurements were performed in the laboratory. The efficiency of recognition using the area perimeter vector and the Bayes classifier was 100 %. The investigations show that the method based on recognition of thermal images can be profitable for engineers. The proposed method can be applied in mining, metallurgy, fuel industry and in factories where electrical motors are used.

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Novikov, Natalia V., and Elena V. Strogonova. "Technological drivers of industrial region's economy socialization." Economic Revival of Russia, no. 4 (66) (2020): 68–77. http://dx.doi.org/10.37930/1990-9780-2020-4-66-68-77.

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The authors reveal key technological factors and drivers for socializing the economy of an industrial region. They focus on the Ural macroregion and prove that the processes of socializing an industrial region's economy are closely related to the development of industrial production, which constitutes the 'genetic core' of the economy for this type of territories. The article substantiates and demonstrates that technological drivers of an industrial region's economy socialization are closely related to the digitalization of industry, which is initiated, to a great extent, by traditional core sectors of the Ural economy (military-industrial complex, metallurgy, mining, mechanical engineering, etc.). The development of 'end-to-end technologies' (digital, additive, information, nanotechnologies, Internet of Things, Big Data, artificial intelligence) constitutes a major driver for an industrial region's economy socialization. The authors pay special attention to the processes of digitalization of the region's economy.

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Trushko, Vladimir, and Olga Trushko. "Integrated development of iron ore deposits based on competitive underground geotechnologies." Записки Горного института 250 (September 29, 2021): 569–77. http://dx.doi.org/10.31897/pmi.2021.4.10.

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The article presents an analytical review of the current state of the iron ore base of the ferrous metallurgy of Russia and the world, identifies the largest iron ore provinces and iron ore producers. The promising directions of development and improvement of the quality of the iron ore base of Russia and the features of the development of new deposits of rich iron ores are identified. Effective technologies for the development of rich iron ores deposits that ensure an increase in production volumes are proposed. The geomechanical justification of rational technological parameters that are easily adapted to changes in mining and geological conditions has been performed. Based on the results of field studies, the use of an elastic-plastic model with the Coulomb – Mohr strength criterion for modeling changes in the stress-strain state of an ore rock mass during mining operations is justified and recommendations for ensuring the stability of mine workings are developed. Effective engineering and technical solutions for the complex development and deep processing of rich iron ores with the production of fractionated sinter ore, which increases the efficiency of metallurgical processes, the production of high-grade iron oxide pigments and iron ore briquettes, which increase the competitiveness of iron ore companies and the full use of the resource potential of deposits, are presented.

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GOLIK, Vladimir, Yuri DMITRAK, Oleg GABARAEV, and Igor ZASSEEV. "PROSPECTS FOR THE DEPOSITS DEVELOPMENT IN OSSETIA." Sustainable Development of Mountain Territories 13, no. 1 (March 27, 2021): 103–11. http://dx.doi.org/10.21177/1998-4502-2021-13-1-103-111.

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Goal. Substantiation of the ecological and economic efficiency of innovative technologies for the development of deposits of the Sadonsky ore cluster during the period of restoration of the lost industrial potential of the depressed region. Methods. Analysis of the theory and practice of mining, with priority given to the experience in the development of North Caucasian deposits. Laboratory experiment in the study of the properties of filling mixtures and options with different activation methods, including reagent leaching in a disintegrator. Mathematical and economic modeling of the efficiency of recycling tailings utilization at the cost of commercial products, taking into account the prevented environmental damage. Results. The information on the dynamics of mining and processing of ores from the Sadonsky deposits is presented. The results of studies of the properties of base concrete mixtures based on ore dressing tailings and local available components are systematized and generalized. The results of changes in the properties of hardening mixtures are given depending on the presence of metals in the tailings of enrichment with various activation options by alternative methods, including an innovative method of mechanochemical leaching in a disintegrator with electrochemically activated water. The equivalent of 1 kg of cement using binders from processing tailings has been determined. The advantages of mechanochemical activation of tailings in a disintegrator in comparison with the option of irrigation by irrigation using various reagents have been experimentally determined. A quantitative indicator of an increase in the strength of the compositions of hardening mixtures under equal conditions has been established. The efficiency of utilization of tailings and metallurgy has been determined as a set of effects of reducing the amount of environmental damage from storage of tailings, the cost of metals obtained during processing, raw materials for the construction industry and associated marketable products. The nomenclature of tailings processing products has been detailed. A model for determining the profit from processing tailings and metallurgy is recommended. A forecast is given at the level of engineering expertise of the prospects for tailings processing. The hardware diagram of the tailings disposal section is detailed. A universal scheme for the disposal of mining and processing waste was recommended. Conclusion. The prospects for the development of the deposits of the Sadonsky ore cluster depend on conversion to technologies with filling voids with solidifying mixtures and leaching of metals at the processing stages. The combined mining technology will reduce the output of tailings, strengthen the base of the construction industry, eliminate the need to build a second stage of tailings and improve the environment.

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Ciurej, Agnieszka, Monika Struska, Anna Wolska, and Wojciech Chudzik. "The Miedzianka Mountain Ore Deposit (Świętokrzyskie Mountains, Poland) as a Site of Historical Mining and Geological Heritage: A Case Study of the Teresa Adit." Minerals 11, no. 11 (October 24, 2021): 1177. http://dx.doi.org/10.3390/min11111177.

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There are numerous traces of mining activity in the Miedzianka Mountain (Świętokrzyskie Mountains, Poland), because copper and silver ores have been mined in this region since at least the 13th century. The history of scientific research on the Miedzianka Mountain ore deposit spans almost 200 years. Almost 40 minerals have been found: ore minerals of Cu and Fe, and also secondary minerals, including carbonates, sulphates and even very rare arsenates, phosphates and vanadates. Three new minerals have been found, staszicite, lubeckite and miedziankite, but their chemical composition has not been precisely determined and therefore their names have not been approved by the International Mineralogical Association (IMA). The Miedzianka Mountain deposit is an important area on the map of educational activities. It is included in the “Świętokrzyskie Archaeological and Geological Trail” as a site of historical (mining and metallurgy) and natural (geological sciences) heritage. Despite the large potential, none of the underground workings (adits and shafts) are currently available to the public. Our research and exploration of the Teresa adit, which is one of the historical underground complexes of the Miedzianka Mountain, show that this adit displays a wide spectrum of topics in the field of mineralogy, geology and mining history. The Teresa adit, which is a 523 m system of underground corridors, contains 270 m of natural karst caves altered by mining works and is constituted of Upper Devonian limestones, locally cut by cherry shales. In several sites of the adit unique features can be observed, such as: (1) old mining works—galleries carved in the rock back in the 19th century; (2) interesting vein mineralization with secondary-colored copper carbonates and multi-colored calcite veins; (3) mineralization with azurite domination; and (4) karst phenomena (coatings, flowstone, dripstones and stalactites) in a cave part of the adit. The sites with unique features suggest that the Teresa adit is highly suitable to be presented to tourists. That is why we propose seven sites on the underground route that could be the basis for further projects to create a “geotouristic trail” in the Teresa adit. The proposal to make the Teresa adit available to tourists is in line with the tendency to protect the post-industrial landscape associated with former mining activities.

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HUDEČEK, Leopold, Miloslav ŘEZÁČ, Denisa CIHLÁŘOVÁ, and Otto ROHÁČ. "Reliability of the Transport System in an Area Affected by the Mining Underground Activity." Inżynieria Mineralna 1, no. 1 (September 8, 2020): 55–60. http://dx.doi.org/10.29227/im-2020-01-09.

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The paper deals with the negative effects of mining on the transport network in the Moravian-Silesian area, especially is focused on problems reflected in construction layers of transport-related structures (railways, roads, area storage and handling areas). With the extraction downturn, the sources and objectives of transport have changed including the characteristics of transport flows of all traffic roads and connections. Various measures for all transport modes situated in Moravian-Silesian region are identified and introduced in the both districts. Also new relevant directions of transport development are described considering efficiency, effectiveness. And also these measures are taken for to needs minimization negative impact on the health and quality of our environment while ensuring the transport services in the region.The dynamic development of the Ostrava agglomeration is thus inseparably connected with black coal mining, metallurgy and railway development. The position of extraction companies was set by the position of the deposit, which resulted in the establishment of a polycentric system of settlement in the agglomeration. Further development of the coal railways at the end of the 19th century was related to the extraction capacities in the region of Karviná. The greatest industrial and development boom was experienced at the beginning of the 20th century where there were massive changes in the condition of the entire Ostrava basin. After 1989, with reduction in the mining work, primary „brownfields“ started appearing in OKD, being industrial premises of the mines as well as secondary „brownfields“, which were disused railway siding stations and connecting railway sidings. High-performance, sufficiently efficient and comfort system of transport infrastructure appears to be a key factor for future development this area.The development of mining in the past years was subject to a functional transport system, with prevailing requirements for the transportation of large volumes of extracted material, structural elements and people working in this industry. With the extraction downturn, the sources and objectives of transport have changed including the characteristics of transport flows of all traffic roads and connections. Thus, in this area it is necessary to identify the consequences of mining, reclaim the landscape, reconstruct civil structures and ensure safe and reliable transport through transport-engineering measures which may ensure the required transport standard and minimise its adverse environmental impacts.

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González-Fernández, B., E. Rodríguez-Valdés, C. Boente, E. Menéndez-Casares, A. Fernández-Braña, and J. R. Gallego. "Long-term ongoing impact of arsenic contamination on the environmental compartments of a former mining-metallurgy area." Science of The Total Environment 610-611 (January 2018): 820–30. http://dx.doi.org/10.1016/j.scitotenv.2017.08.135.

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Iadranskii1, Dmitrii, and Elena Chumak. "Modification of Soviet approaches to rationing the number of employees at mining enterprises." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, no. 3 (May 14, 2020): 96–106. http://dx.doi.org/10.21440/0536-1028-2020-3-96-106.

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Introduction. The article critically comprehends the Soviet developments in the field of mining management personnel labor regulation. The works of modern authors and Soviet normative and methodological materials are considered. Based on the analysis, it is concluded that the Soviet methodological approaches to rationing the number of management personnel in general meet the challenges of modern conditions if critically scrutinized. In the course of the research the authors carried out a recalculation of the number of standards for ferrous metallurgy enterprises, which showed that the Soviet methodological approaches can have applied value if they are somewhat modernized and combined with other methods. Research aim is to conduct an analytical study of the possibility of using the Soviet methodology of rationing the number of management personnel in the conditions of modern mining enterprises. Research methodology includes the method of theoretical analysis, the method of induction, economic and mathematical methods of analysis. As a result, analytical formulas are proposed with the help of which it is proposed to modify the Soviet approaches to rationing the number of managerial personnel. A logical scheme is proposed, which can be fully used for the final establishment of the number of managers and staff scheduling. The opinion is expressed about the need for strict control of the number of management personnel and the establishment of a normative balance between the number of performers (workers) and engineering and management personnel of the enterprise. Summary. The proposed method is quite universal and can be of practical value in calculating the standard number of employees of mining enterprises

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Wendt, Helge. "Mining Language: Racial Thinking, Indigenous Knowledge, and Colonial Metallurgy in the Early Modern Iberian World by Allison Margaret Bigelow." Technology and Culture 63, no. 2 (April 2022): 533–34. http://dx.doi.org/10.1353/tech.2022.0098.

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Kaptay, G. "On the atomic masses (weights?) Of the elements." Journal of Mining and Metallurgy, Section B: Metallurgy 48, no. 1 (2012): 153–59. http://dx.doi.org/10.2298/jmmb111024014k.

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Atomic masses (weights?) is an essential information for mining and metallurgy. The paper discusses four subjects around this problem. First, the classification of all the elements is suggested into 4 classes, based on their isotope features, determining the accuracy of their known atomic masses. As part of that, the class of elements is discussed with uncertain atomic weights in accordance with the 2009 IUPAC recommendations. A better (easier to use) format of atomic weights is presented for this class of elements. Third, it is found not informative to leave empty spaces instead of approximate atomic weights for elements with unstable isotopes. Fourth, the term atomic weight vs the term atomic mass is discussed shortly, in agreement with the SI system of units and in contrary to the questionable IUPAC convection.

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ALEKSEYEV, Igor. "Professional competencies implementation and interaction with industrial partners of the mining and metallurgical industry as education quality indicators at technical universities." Sustainable Development of Mountain Territories 14, no. 1 (March 30, 2022): 151–54. http://dx.doi.org/10.21177/1998-4502-2022-14-1-151-154.

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The author's work consists in developing a system for improving the quality of the educational process at the university and effective mechanisms for its control, as well as in building a system of mutually beneficial cooperation with leading partners in the mining and metallurgical industry. To achieve this goal, various methodological techniques were used, such as analysis, a systematic approach and a comparative legal approach. These techniques were implemented in relation to the technical universities located geographically in the mountainous regions. As a result of the conducted scientific analysis, approaches are proposed that, in our opinion, will improve the quality of education in the technical universities leading close cooperation with industrial partners in various fields and industries, including mining and metallurgy. The value and significance of the results lies in the attempt to implement and test the described approaches and evaluate the preliminary results obtained in technical universities located in the mountainous areas.

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Zadorozhnyi, Oleksiі. "Development of Trade and Economic Relations Between Ukraine and the Kingdom of the Netherlands: Dynamics and Prospects." Modern Economics 31, no. 1 (February 20, 2022): 38–44. http://dx.doi.org/10.31521/modecon.v31(2022)-06.

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Abstract. Introduction. In this article, based on the analysis of the development of trade and economic relations between Ukraine and the Netherlands, was found that the Netherlands is one of the largest investors in Ukraine in recent years. According to the results of the analysis, it is found that metallurgy, agro-industrial complex, mechanical engineering, IT industry, oil and fat industry are the most popular industries in trade and economic cooperation between the countries today. Purpose. The aim of the work is to identify the effectiveness of trade and economic relations between Ukraine and the Netherlands based on a study of the dynamics of the impact of economic indicators on the structure of Ukraine's economy. Results. The dynamics of trade and economic cooperation between Ukraine and the Netherlands for the period 2014- 2021 is studied. The existing volumes of trade between countries and attracting foreign direct investment as of 2020-2021, as well as export and import structures are analyzed. Examples of qualitatively new content of cooperation between Kyiv and Amsterdam are given, in particular, the establishment of agreements on a number of reclamation measures in Ukraine with the assistance of the Kingdom, which will generally help to improve the environmental situation. Potentially attractive sectors of Ukraine's economy for European investors have been identified, among which are the agro-industrial complex, metallurgy, oil and fat industry, IT sector, mechanical engineering, mining, etc. The key principles on which cooperation with the Netherlands should be based are outlined and the priority areas of relations with the EU countries are described. We have suggested the ways to increase the competitiveness of domestic products in European markets based on the experience of partner countries, including the creation of an effective system for certification of export products in Ukraine and a temporary reduction in value added tax. In this research were used general scientific methods of induction, deduction, dynamics, statistics, etc. Conclusions. Conclusions are made on the current state of Ukrainian-Dutch relations. Opportunities and prospects for the development of bilateral relations in the near and long term are outlined. Promising areas of trade and economic cooperation between Ukraine and the Netherlands have been found, such as: mining and development of the machine-building industry with the investment participation of the Kingdom.

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Dobra, Ramona Monica, Nicolae Farbas, and Doru Romulus Pascu. "Evaluation of Abrasive Wear Resistance of Fe-Cr-C Hardfacing Alloys Deposited on Active Components of the Agricultural Components." Advanced Materials Research 1029 (September 2014): 188–93. http://dx.doi.org/10.4028/www.scientific.net/amr.1029.188.

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In most of the engineering applications, such as mining, agriculture, metallurgy, the equipments fail due to abrasive wear. Hardfacing is one of the most economical and most widely used methods of improving surface characteristics of engineering equipments (wear, corrosion) without changing the bulk properties of the components.Fe-Cr-C hardfacing alloys are well known for their excellent performances under severe wear conditions. The wear behaviour of hardfacing alloys depends on their chemical composition, on the microstructure obtained after welding, of the welding technology, respectively the welding parameters which strongly influence, for example, the dilution with the base material or formation of precipitated hard phases.The aim of this study was to characterize the microstructure of Fe-Cr-C hardfacing alloys and to investigate their abrasive wear behaviour. The research has been carried out using four types of Fe-Cr-C hardfacing alloys (8 12, 16 and 20 % Cr). The alloys were deposited on the low-carbon steel S355 JR by manual arc welding method. The abrasion wear testing was carried out using the Taber Rotary Abraser Equipment. The microstructure characterization and surface analysis were performed using optical microscopy and HV 10 hardness tests.

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Kiptach, Fedir Ya. "Identification of problems in industrial waste management on the regional level." Socio-Economic Problems of the Modern Period of Ukraine, no. 3(155) (2022): 29–35. http://dx.doi.org/10.36818/2071-4653-2022-3-5.

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The article offers a solution to the problem of legal regulation of industrial waste concept and its separation from the general concept of waste and industrial waste management due to delegated competences on national, regional, and local levels of the current administrative-territorial structure of Ukraine. The main sources of generation/accumulation of large industrial waste volumes are outlined. The article reveals that they include the mining and career development enterprises in the Donetsk-Dnipro area and Lviv-Volyn coal basin, as well as processing industry enterprises, and to a lesser extent, energy, gas, steam, conditioned air, and water supply and sewerage enterprises. In sectoral breakdown, the enterprises are from mining, mining-chemical industry, ferrous and non-ferrous metallurgy, chemical, petrochemical, and allied industries, machinery and metal processing, forestry and wood processing, food and light industries, and energy. Based on the results of the research, the ranges of areas of industrial waste accumulation in organized storages/landfills and the territory of enterprises are outlined, divided into classification groups, and mapped. The article reveals that the shares of industrial waste accumulation by economic entities in mining and career development within the Donetsk coal basin and Dnipro brown coal basins and extraction of manganese and iron ores in their total volumes in Ukraine are the highest. The share in Poltavska oblast amounts to 99.16 %, Kirovohradska – 97.04 %, Dnipropetrovska – 90.16, and Donetska – 62.23 %. The article of the regional operator of industrial waste management system selected by competition regardless of ownership form is substantiated. Currently, the regional strategies of responsible natural resources management by introduction of innovative environmental technologies in production and minimization of the industrial waste generation and environmental threats risk reduction are the top priority.

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Tran, Hien Thi, and Phong Duc Pham. "Research and complete the processing technology of Son La oxide copper ores for the Tay Bac Minerals Joint Stock Company." Journal of Mining and Earth Sciences 62, no. 3b (July 20, 2021): 22–29. http://dx.doi.org/10.46326/jmes.2021.62(3b).03.

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The copper ore processing plant of the Tay Bac Minerals Joint Stock Company has been designed and operated to produce metallic copper from copper sulphide ores and copper oxide ores in Son La province. Copper sulphide ores are processed to produce copper concentrates with content of more than 20% Cu for the next processing stage, while copper oxide ores, with average content of 1÷3% Cu and after grinding, are fed directly into hydrometallurgical processes to extract copper. However, this process requires large amount of chemicals. Therefore, the economic efficiency is not high. The National Institute of Mining - Metallurgy Science and Technology has researched and proposed a reasonable technology process for Son La copper oxide ores for solving difficulties and perfecting the processing technology at the plant that improves economic efficiency and minimizes environmental pollutions. This report presents results of the experimental production research project with the code CNKK.013.19, implemented by the Institute of Materials Science and sponsored by the Ministry of Industry and Trade.

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Tkachev, Vitaly V., and Sergey V. Bogdanov. "THE PURPOSE OF SHAFT-TYPE FURNACES OF THE WEST ASIAN METALLURGICAL PROVINCE." Ural Historical Journal 77, no. 4 (2022): 41–54. http://dx.doi.org/10.30759/1728-9718-2022-4(77)-41-54.

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The article addresses the problem of the functional purpose of shaft-type furnaces with chimneys found at the Late Bronze Age sites of Northern Eurasia. This category of thermal engineering structures became widespread in the eastern wing of the West Asian (Eurasian) metallurgical province. Thermal sets with flue channels are physical evidence of the implementation of technological algorithms of the pastoral model of metal production based primarily on multistage processing of secondary copper sulfides. Shaft furnaces with flues of the Ural-Kazakhstan region are functionally similar to the more structurally simple fi re pits-furnaces present in the structure of mining and processing complexes of the steppe Cis-Ural region. They were intended for decrepitation, pyrotechnic enrichment, and refining of ore protolith during a long fi re setting using brushwood and wood fuel at relatively low temperatures in the range of 600–800 °C. The degree of complexity of thermal engineering structures was determined by the nature of the raw materials used. Ordinary fi re pits turned out to be acceptable for ore-bearing complexes in the copper shales and sandstones of the steppe Cis-Ural region. The ores of the ultrabasic deposits of the Ural-Mugodzhar region were difficult to be processed and required the use of mine furnaces with flues, which were also characteristic of the metal production centers of the Kazakhstan mining and metallurgical region. Further improvement of thermal engineering structures with flue channels was due to the need to overcome the raw material crisis caused by the exhaustion of available sulfide reserves in secondary enrichment zones within ultrabasic deposits, and copper shale ore occurrences at the end of the Bronze Age. It required the transition to the use of chalcopyrite and greatly contributed to the discovery of iron metallurgy.

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Magiera, Tadeusz, Beata Górka-Kostrubiec, Tadeusz Szumiata, and Małgorzata Wawer. "Technogenic magnetic particles from steel metallurgy and iron mining in topsoil: Indicative characteristic by magnetic parameters and Mössbauer spectra." Science of The Total Environment 775 (June 2021): 145605. http://dx.doi.org/10.1016/j.scitotenv.2021.145605.

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Malan, D. F. "Journal impact factors - The good, the bad, and the ugly." Journal of the Southern African Institute of Mining and Metallurgy 122, no. 9 (October 31, 2022): 1–8. http://dx.doi.org/10.17159/2411-9717/1741/2022.

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This paper provides an overview of the concepts of citations and journal impact factors, and the implications of these metrics for the Journal of the Southern African Institute of Mining and Metallurgy (JSAIMM). Two key research literature databases publish journal impact factors; namely, Web of Science and Scopus. Different equations are used to calculate journal impact factors and care should be exercised when comparing different journals. The JSAIMM has a low impact factor compared with some of the more prestigious journals. It nevertheless compares well with journals serving other mining sectors, such as the Canadian CIM Journal. The problems associated with journal impact factors are discussed. These include questionable editorial practices, the negative impact of this concept on good research, and the problem of a few highly cited papers distorting the journal impact factor. As a consequence, there is growing resistance to the use of journal impact factors to measure research excellence. The San Francisco Declaration on Research Assessment is a global movement striving for an alternative assessment of research quality. As a recommendation, the Editorial Board of the JSAIMM should adopt a pragmatic approach and not alter good journal policies simply to increase the journal impact factor. The focus should remain on publishing excellent quality papers. Marketing of the Journal, the quality of the published papers, and its open access policy should be used to counter the perception that journals with high impact factors are better options in which to publish good research material.

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Xuan, Hongbin, and Gongjun Cui. "Tribological properties of Fe-Cr-B alloy for sliding boot in coal mining machine under dry sliding condition." Industrial Lubrication and Tribology 69, no. 2 (March 13, 2017): 142–48. http://dx.doi.org/10.1108/ilt-10-2015-0159.

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Purpose To improve the wear resistance of the sliding boot, the wear-resistant Fe-21 Wt.% Cr-5 Wt.% B alloy is prepared, and the wear mechanism is studied under dry sliding condition. Design/methodology/approach The anti-wear Fe-21 Wt.% Cr-5 Wt.% B alloy is prepared by powder metallurgy technique. The tribological behavior of Fe-Cr-B alloy sliding against ASTM 1045 steel pin is studied at 30-60 N and 0.03-0.12 m/s using a reciprocating pin-on-disk tribometer under dry sliding condition. Meanwhile, the ASTM 5140 and 3316 steel are studied as compared samples. Findings The friction coefficients of tested specimens increase with the increasing normal load. However, this effect is the opposite in case of different sliding speeds. The specific wear rates increase as the sliding speed and normal load increase. The Fe-Cr-B alloy shows the best tribological properties under the dry sliding condition and the wear mechanism is mainly ploughing. Originality/value This wear-resistant Fe-21 Wt.% Cr-5 Wt.% B alloy can replace the traditional materials to process the sliding shoes and improve the service life of coal mining machine.

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Journal articles on the topic 'Mining engineering. Metallurgy'

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