Zobrazeno 1 - 10 of 30 pro vyhledávání: '"ANDREI ANDRAS"'
1
Akademický článek
THE STUDY OF THE KINEMATICS OF THE LIFTINGLOWERING MECHANISM OF THE SMA-2 POWERED ROOF SUPPORT USING COMPUTER SOFTWARE
Autor: ANDREI ANDRAS, FLORIN DUMITRU POPESCU, IONELA CRISTINA MĂCEŞARU (LĂPĂDUŞI), ILDIKO BRINAS
Publikováno v: Annals of the University of Petroşani. Mechanical Engineering, Vol 25, Pp 17-32 (2024)
The shield of the SMA-2 utilizes a quadrilateral mechanism with a corner cylinder generating a lemniscate. The synthesis of the quadrilateral mechanism, its geometric and kinematic analysis in correlation with the geometry and kinematics of the entir
Externí odkaz: https://doaj.org/article/ff19dcd4ed494437bbac5d7af67131c4
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2
Akademický článek
Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics
Autor: Andrei Andras, Florin Dumitru Popescu, Sorin Mihai Radu, Dragos Pasculescu, Ildiko Brinas, Mirela Ancuta Radu, Daniela (Furdui) Peagu
Publikováno v: Applied Sciences, Vol 14, Iss 10, p 4026 (2024)
Electrical contacts are important circuit components with diverse industrial applications, and their failure can lead to multiple unwanted effects. Hence, the behavior of electrical contacts is a widely studied topic in the scientific literature base
Externí odkaz: https://doaj.org/article/ea192a0069fd4830be2692852a07638d
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3
Akademický článek
Stability Assessment of the Dam of a Tailings Pond Using Computer Modeling—Case Study: Coroiești, Romania
Autor: Florin Dumitru Popescu, Sorin Mihai Radu, Andrei Andras, Ildiko Brinas, Mihaela-Olga Marita, Mirela Ancuta Radu, Constantin Laurentiu Brinas
Publikováno v: Applied Sciences, Vol 14, Iss 1, p 268 (2023)
Anthropogenic activities related to mining generate both progress and a vast amount of waste that is responsible for environmental degradation. The Jiu Valley is one of the areas of Romania where mining has affected large areas of land, used to build
Externí odkaz: https://doaj.org/article/c6f59289626c48bfaaaa07caa183c38f
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4
Akademický článek
Mining Technological System's Performance Analysis
Autor: Sorin Mihai Radu, Witold Chmielarz, Andrei Andras
Publikováno v: Annals of the University of Craiova for Journalism, Communication and Management, Vol 2, Iss 1, Pp 56-64 (2016)
The mining production systems, both for underground and open pit extraction consist mainly in a string of equipment starting with the winning equipment (shearer loader, in case of underground longwall mining or bucket wheel excavator in case of open
Externí odkaz: https://doaj.org/article/1f3b43af9e0a4b11b20eddade3d90033
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6
Trenchless Execution of Microtunnels for Municipal Infrastructure in Urbanized Site – Conception of a New Solution
Autor: Krzysztof Kotwica, Hubert Suffner, Andrei Andras
Publikováno v: Management Systems in Production Engineering. 28:276-282
The technologies for trenchless execution of mini and microtunnels for an installation of municipal infrastructure in urbanized sites, used at present, are described in the article. The emphasis is laid on uncontrolled methods, in the case of the dia
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10504aa1003331153f6e5df9ea672c4d
https://doi.org/10.2478/mspe-2020-0039
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