Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Károly Jármai"'
Publikováno v:
Energies, Vol 17, Iss 17, p 4215 (2024)
It is essential to protect control, regulation and data storage units used in automated robotic manufacturing from the consequences of harmful electrical grid harmonics. In this paper, the effectiveness of active/passive harmonic filters built into L
Externí odkaz:
https://doaj.org/article/b15d627152924c2692f280b76434da03
Publikováno v:
Applied Mechanics, Vol 2, Iss 4, Pp 891-910 (2021)
In engineering, metaheuristic algorithms have been used to solve complex optimization problems. This paper investigates and compares various algorithms. On one hand, the study seeks to ascertain the advantages and disadvantages of the newly presented
Externí odkaz:
https://doaj.org/article/572d9a0d3f1d44289513460a850e2079
Publikováno v:
Applied Mechanics, Vol 2, Iss 4, Pp 714-727 (2021)
A heat treatment is effective for reducing the residual stress of the welded structures. A post-weld heat treatment (PWHT) requires a large heating apparatus (furnace). It requires a high energy, a long time, and a high cost. For examining the possib
Externí odkaz:
https://doaj.org/article/5416e45c92024e61891d0a3548842b15
Autor:
Pál-Botond Gálfi, Renáta-Ildikó Száva, Ioan Száva, Sorin Vlase, Teofil Gălățanu, Károly Jármai, Zsolt Asztalos, Gabriel Popa
Publikováno v:
Fire, Vol 5, Iss 6, p 210 (2022)
Nowadays, the real structures (considered as prototypes) subjected to fire are analysed by means of the behaviours of some reduced scale structures (defined as models). These prototype–model correlations are governed by the so-called dimensional an
Externí odkaz:
https://doaj.org/article/45d397a8249448f4b91e2e12d5cecefc
Autor:
Renáta-Ildikó Száva, Ioan Száva, Sorin Vlase, Pál-Botond Gálfi, Károly Jármai, Teofil Gălățeanu, Gabriel Popa, Zsolt Asztalos
Publikováno v:
Symmetry, Vol 14, Iss 9, p 1952 (2022)
In order to foresee the response during the fire of a real symmetrical structure (prototype), nowadays engineers apply methods which involve the associated reduced-scale model’s behaviors, mainly dimensional analysis behaviors. Between the dimensio
Externí odkaz:
https://doaj.org/article/0c19ee746ddb4688b56b47285f16148e
Autor:
Renáta-Ildikó Száva, Betti Bolló, Péter Bencs, Károly Jármai, Ioan Száva, Gabriel Popa, Zsolt Asztalos, Sorin Vlase
Publikováno v:
Symmetry, Vol 14, Iss 9, p 1781 (2022)
The paper studies, experimentally and numerically, the fire behavior of some structural elements of symmetric-tubular (rectangular in this study) shapes using modern dimensional analysis (MDA). A model at a certain scale of the real prototype is anal
Externí odkaz:
https://doaj.org/article/400f75894acc495d9a57bb10d450858b
Publikováno v:
Symmetry, Vol 14, Iss 4, p 769 (2022)
The paper aims to use Modern Dimensional Analysis to study the heat transmission through a rectangular bar with a hole. The problem is very important for monitoring a structure, made of such bars, to protect it from fire. The original part of the wor
Externí odkaz:
https://doaj.org/article/0905a03dcc674a43becb22d138ca0e2a
Autor:
Hazim Albedran, Károly Jármai
Publikováno v:
International Review of Applied Sciences and Engineering.
Drones, specifically quadcopters, have increased in importance during the last years due to their wide range of applications, from civil applications to military employment. One of the most important issues in quadcopters is the efficient control sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05a3db90b868b6372084504d0600cffa
https://doi.org/10.1556/1848.2022.00584
https://doi.org/10.1556/1848.2022.00584
Publikováno v:
Pollack Periodica. 17:24-29
This work, presents a novel optimizer called fertilization optimization algorithm, which is based on levy flight and random search within a search space. It is a biologically inspired algorithm by the fertilization of the egg in reproduction of mamma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9df12438e1f95a1b1a0892eb2c9a946
https://doi.org/10.1556/606.2021.00343
https://doi.org/10.1556/606.2021.00343
Publikováno v:
Pollack Periodica.
The paper compares different metaheuristics for using heat exchangers as a benchmark to estimate the best design parameter values using optimization efficient algorithms. Many MATLAB algorithms are used in this study. Also, an engineering equation so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f968e9d58b6ceccd8ca17748e46d36de
https://doi.org/10.1556/606.2022.00543
https://doi.org/10.1556/606.2022.00543