Modernization of Control Systems of Electric Drives of Mine Lifting Machines
E3S Web of Conferences, 2018 The article shows the peculiarity of the system of technological automation of the newest Simatic S7-1500 PLCs, for electric drives of hoisting transport machines, the analysis of control systems for electric drives of operating mine hoisting machines of
Eshmurodov Ziyodullo, Holboiv Folib
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Review and Integrated Framework for Deep-Sea Mineral Resources, Ecological Influence, and Future Development. [PDF]
Int J MicrobiolAs global industrialization advances and land‐based resources decline, deep‐sea resource development is becoming increasingly vital. The deep sea is rich in minerals such as polymetallic nodules, polymetallic sulfides, and cobalt‐rich crust. However, deep‐sea ecosystems and geochemical cycles can be severely impacted by extensive mineral mining.
Liu J +8 more
europepmc +2 more sources
The Mine Shaft Energy Storage System—Implementation Threats and Opportunities
Energies, 2023 For several years, research work has been carried out on energy storage that uses changes in the potential energy of masses being lifted or lowered. The energy of such a solution depends on the mass to be transported and the height to which the weight ...
Tomasz Siostrzonek
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Loop Quasi-Invariant Chunk Motion by peeling with statement composition [PDF]
, 2017 Several techniques for analysis and transformations are used in compilers. Among them, the peeling of loops for hoisting quasi-invariants can be used to optimize generated code, or simply ease developers' lives.
Moyen, Jean-Yves +2 more
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The Technical and Economic Aspects of Using DC or AC Motors in the Drive of Hoisting Machines
EnergiesA hoisting machine is one of the main components of an underground mine process line. The drive systems currently used in these machines are based on direct current, synchronous, or induction (AC) motors. Power electronic converters are used to power and
Tomasz Siostrzonek +2 more
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VERIFICATION OF BRAKING MECHANISM OF HOISTING DEVICE BLIND SHAFT NO.11 OF THE MINING PLANT LONEA [PDF]
Fiabilitate şi Durabilitate, 2018 Every extraction machine is endowed with a braking system while ensure the right movement of the hoisting vessels, or allows to stop the machine in a certain position of the vessels (brake tests) and the automatic brake device, independently of the ...
Răzvan Bogdan ITU, Vilhelm ITU
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INFORMATION-EXTREMAL CLUSTER-ANALYSIS OF INPUT DATA IN FUNCTIONAL DIAGNOSIS
Радіоелектронні і комп'ютерні системи, 2019 The study aims to increase the functional efficiency of machine learning of the functional diagnosis system of a multi-rope shaft hoist through cluster analysis of diagnostic features.
Вікторія Ігорівна Зимовець +2 more
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Justification of the algorithm for selecting the parameters of the elastic lining of the drums of mine hoisting machines [PDF]
E3S Web of Conferences, 2019 When calculating the stress-strain state of a cylindrical drum of a mine hoisting machine loaded with a metal rope, the stiffness parameters of the elastic lining and frontal surface are taken into account.
Zabolotnyi Kostiantyn +3 more
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The Caltech Submillimeter Observatory [PDF]
, 2007 A brief description of the history and technology of the Caltech Submillimeter Observatory (CSO) is presented. The design of the 10.4 m Leighton telescope is discussed and also the methods used for fine adjustments of the surface.
Phillips, T. G.
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Automatic semantic annotation method for mine Semantic Web of things
Gong-kuang zidonghua, 2020 In view of problem of difficulties in obtaining prior knowledge during fusion of heterogeneous data in mining field, poor real-time performance of IoT ontology database,and low efficiency of manual annotation of instance object data, an automatic ...
ZHANG Nan +3 more
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