Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Petr Bača"'
Publikováno v:
Sensors, Vol 24, Iss 18, p 5968 (2024)
This paper deals with CFD analyses of the difference in the nature of the shock waves in supersonic flow under atmospheric pressure and pressure conditions at the boundary of continuum mechanics for electron microscopy. The first part describes the v
Externí odkaz:
https://doaj.org/article/7b38a79c26aa4d929b76f3e8fafc33cd
Autor:
Pavla Šabacká, Jiří Maxa, Jana Švecová, Jaroslav Talár, Tomáš Binar, Robert Bayer, Petr Bača, Petra Dostalová, Jiří Švarc
Publikováno v:
Sensors, Vol 24, Iss 11, p 3436 (2024)
The paper presents a methodology that combines experimental measurements and mathematical-physics analyses to investigate the flow behavior in a nozzle-equipped aperture associated with the solution of its impact on electron beam dispersion in an env
Externí odkaz:
https://doaj.org/article/344e13a3ab58449ca248556111b98527
Publikováno v:
Batteries, Vol 10, Iss 5, p 148 (2024)
Thermal events in lead-acid batteries during their operation play an important role; they affect not only the reaction rate of ongoing electrochemical reactions, but also the rate of discharge and self-discharge, length of service life and, in critic
Externí odkaz:
https://doaj.org/article/8133f2208f85401c82507a4ce130c6bf
Autor:
Jiří Maxa, Pavla Šabacká, Jan Mazal, Vilém Neděla, Tomáš Binar, Petr Bača, Jaroslav Talár, Robert Bayer, Pavel Čudek
Publikováno v:
Sensors, Vol 24, Iss 7, p 2166 (2024)
This paper describes the methodology of combining experimental measurements with mathematical–physics analyses in the investigation of flow in the aperture and nozzle. The aperture and nozzle separate the differentially pumped chamber from the spec
Externí odkaz:
https://doaj.org/article/38ec83a73f3f4459b862d0c6678dca40
Autor:
Petr Bača, Vladimír Mašán, Petr Vanýsek, Patrik Burg, Tomáš Binar, Pavel Suchý, Lenka Vaňková
Publikováno v:
Applied Sciences, Vol 14, Iss 3, p 1080 (2024)
In the context of a changing climate and increasing efforts to use renewable energy sources and waste materials and to green the environment, new sources and technologies for energy recovery from waste are being sought. This study evaluates the possi
Externí odkaz:
https://doaj.org/article/831aaf95fea44e659a2d957b605971c5
Autor:
Pavla Šabacká, Jiří Maxa, Robert Bayer, Tomáš Binar, Petr Bača, Petra Dostalová, Martin Mačák, Pavel Čudek
Publikováno v:
Sensors, Vol 23, Iss 24, p 9765 (2023)
This paper presents mathematical-physics analyses in the field of the influence of inserted sensors on the supersonic flow behind the nozzle. It evaluates differences in the flow in the area of atmospheric pressure and low pressure on the boundary of
Externí odkaz:
https://doaj.org/article/be68b701da9742d7905011059925acce
Autor:
Petr Bača, Petr Vanýsek
Publikováno v:
Energies, Vol 16, Iss 11, p 4468 (2023)
This article gives an overview of historical and present uses of lead against the backdrop of gradual realization that lead is an environmental hazard. In this paper the lead in the lead-acid batteries is investigated from the view of its present use
Externí odkaz:
https://doaj.org/article/35f9f699b4324649afbd508e63bcd4bc
Publikováno v:
Acta Montanistica Slovaca, Vol 20, Iss 3, Pp 165-174 (2015)
To be able to use lead acid batteries in particularly difficult conditions in the mining industry, it is very important to understand the events that occur during traction operation of mining carts, or auxiliary lighting. Failure of lead accumulators
Externí odkaz:
https://doaj.org/article/2d6a72ee304c45cfa4d5500ffd19a545
Publikováno v:
Acta Montanistica Slovaca, Vol 17, Iss 4, Pp 247-250 (2012)
The Alternative energy sources become more and more important. The Energy of sun is for sure much more appropriateand ecologic source of power than the fossil fuels. This topic cannot be actual more at least in the Czech Republic and Slovakia alsowhe
Externí odkaz:
https://doaj.org/article/9e18a3fb2e0544a2bc65f4dcf8738de0
Autor:
Petr Bača
Publikováno v:
Acta Montanistica Slovaca, Vol 15, Iss special issue 2, Pp 100-104 (2010)
This paper presents an overview of all currently commercially available options of energy storage in the power distributionnetwork. The paper puts forward arguments for energy storage in the distribution network as well as requirements that must be m
Externí odkaz:
https://doaj.org/article/3928b31ea268407f9c31feb792be7b6c