Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Florin-Dumitru Popescu"'
Publikováno v:
Annals of the University of Petroşani. Mechanical Engineering, Vol 25, Pp 39-42 (2024)
Longwall mining shearers equipped with drum-type mechanisms have become widely applied equipment in underground coal exploitation. The constructive evolution, quality, reliability, and functional performance of these machines, influenced by technolog
Externí odkaz:
https://doaj.org/article/3ef78794b5f94405bbc6805e29071e2e
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
Publikováno v:
Annals of the University of Petroşani. Mechanical Engineering, Vol 25, Pp 59-70 (2024)
In the paper, we addressed the simulation and numerical modeling of deformation under static loading of wire ropes used in mine hoisting installations. We presented the main types of extraction vessels (cages and skips) commonly used in the mining in
Externí odkaz:
https://doaj.org/article/45844963866946c79a6b617e1452f2a9
Publikováno v:
Applied Sciences, Vol 14, Iss 21, p 9875 (2024)
Open-pit mining generates significant amounts of waste material, leading to the formation of large waste dumps that pose environmental risks such as land degradation and potential slope failures. The paper presents a stability analysis of waste dump
Externí odkaz:
https://doaj.org/article/b97f64c77d3744eaa6936d92e0facbb7
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
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
Publikováno v:
Sensors, Vol 23, Iss 1, p 453 (2023)
Thermostats operate alongside intelligent home automation systems for ensuring both the comfort of the occupants as well as the responsible use of energy. The effectiveness of such solutions relies on the ability of the adopted control methodology to
Externí odkaz:
https://doaj.org/article/6570d9f0621546458baec66f31fb7362
Autor:
Ildiko Brînaș, Andrei Andraș, Sorin Mihai Radu, Florin Dumitru Popescu, Iosif Andraș, Bogdan Ioan Marc, Alexandru Robert Cioclu
Publikováno v:
Energies, Vol 14, Iss 13, p 3892 (2021)
Starting from the general principles of material cutting, with applicability to coal and overburden excavation using bucket wheel excavators (BWEs), this paper proposes another method for calculating the drive power of the bucket wheel excavator by c
Externí odkaz:
https://doaj.org/article/987843d959f147adbf0121f11ad012d6
Autor:
Andrei Andraş, Florin Dumitru Popescu
Publikováno v:
Mining Revue. 27:50-56
The paper presents the state-of-the-art on the microwave assisted mechanical rock cutting by presenting actual findings and tendencies in the field in international literature, and the activities performed during the intermediate stage and the result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef9c8d2cd47147981ce19b1661923844
https://doi.org/10.2478/minrv-2021-0034
https://doi.org/10.2478/minrv-2021-0034
Autor:
Florin Dumitru Popescu, Sorin Mihai Radu, Andrei Andraș, Ildiko Brînaș, Daniela Ioana Budilică, Valentin Popescu
Publikováno v:
Materials; Volume 15; Issue 9; Pages: 3363
This paper studies both the thermal and mechanical behavior of brake system models in the case of the emergency braking of a mine hoist model. Using a step-by-step approach inspired by studies conducted on small brake systems with high rotation speed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b3d7b5164b36f24887b7f38773d0937
https://pubmed.ncbi.nlm.nih.gov/35591697
https://pubmed.ncbi.nlm.nih.gov/35591697