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Wyszukujesz frazę "Kania, Jan" wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Review of a Modern Technical Solution in Continuous Miner Machine Technology
Autorzy:
Mężyk, Arkadiusz
Pawlak, Mariusz
Kania, Jan
Powiązania:
https://bibliotekanauki.pl/articles/2064276.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
continuous miner
road header machine
permanent magnet motor
silnik z magnesami trwałymi
maszyna górnicza
maszyna urabiająca
Opis:
In this paper is presented the overview of Continuous Miners available on the market. Numbers describe machines from 1 to 41 and parameters obtained from manufacturers catalogues are presented on diagrams. The statistical analysis of some of parameters are carried out by linear approximation to show factors determining, for example, the total power of installed engines to the power of the cutting head drive, the total power of installed engines to the total mass, cutting height to the cutter diameter and cutting height to the cutting width, etc. Thin layers of coal less than 1.2 m thick and remnants of seams that require work on a system of boards and columns constitute an increasing share of coal deposits. Geometric restrictions, in this case, are closely correlated with the construction form of the machine and they must have high performance with limited geometric dimensions. This type is called “Continuous Miner”, and is closely correlated with those restrictions. The paper reviews the technical solutions used in these machines, which are currently used around the world. Particular attention is paid to the new concept of the cutting drum drive system, in which permanent magnet motors are proposed. Placing them in a cutting drum improves the efficiency of the mining process and the possibility of modular configuration depending on the required working conditions.
Źródło:
New Trends in Production Engineering; 2020, 3, 1; 272--282
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods and Proposals for Meeting Energy Needs
Autorzy:
Grebski, Wes
Czerwiński, Stefan
Kania, Jan
Powiązania:
https://bibliotekanauki.pl/articles/2064346.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
energy consumption
energy economy
energy fuels
power plants
renewable energy
zużycie energii
oszczędność energii
paliwa energetyczne
elektrownie
energia odnawialna
Opis:
The article includes a comparative analysis of different methods of solving energy problems especially meeting the demand for electricity. Energy problems became a global concern due to the rapid increase in the world population. Energy consumption reflects the habits of the society and the nature of the economy. The focus of the article is the analysis of the United States (USA) energy economy in terms of meeting the needs of industry and society. It includes a comparison of costs of generating electricity obtained from various sources. It also includes an analysis of opportunities and threats related to the energy sector’s dependence on individual energy sources. Meeting the demand for electricity cannot be solved by increasing only the energy generation. The cost of increasing electricity production is always higher compared to increasing energy efficiency. The impact of energy efficiency of devices on energy management was also assessed. The publication also contains practical conclusions and recommendations regarding energy management on a global scale.
Źródło:
New Trends in Production Engineering; 2020, 3, 1; 98--109
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How Do the Cārvākas/Lokāyatas Fit into Udayana’s Statement of Universal Worship? On Nyāya-kusumâñjali 17,3: loka-vyavahāra-siddha iti cārvākāḥ
Autorzy:
Kania, Stanisław Jan
Powiązania:
https://bibliotekanauki.pl/articles/30040925.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Kultur Śródziemnomorskich i Orientalnych PAN
Tematy:
Udayana
Lokāyata
Cārvāka
lokavyavahārasiddha
lokavyavahāra
Opis:
In his influential work concerned with rational argumentation in defence of Nyāya-Vaiśeṣika theism, the Nyāya-kusumâñjali, Udayana (10th–11th cent.) makes a puzzling claim that all seekers of puruṣârtha, theist or not, worship God, albeit under a different form or name. Included in the provided enumeration of different traditions of Indian thought is the irreligious school of the Cārvākas (also known as the Lokāyatas), declared by Udayana to be worshipping God as loka-vyavahāra-siddha (lit. ‘(the) established by common usage’). In this paper, I attempt to shed light on the meaning behind both loka-vyavahāra-siddha and the statement of universal worship as a whole. Specifically, I argue that Udayana imposes on non-theists and atheists the need to resort to (broadly understood) belief, and in the case of the Cārvākas/Lokāyatas this is manifested in their acceptance of everyday inference warranted by mere common usage. I reject the interpretations by Udayana’s commentators and by the modern scholar of Indian materialism, Ramkrishna Bhattacharya.
Źródło:
Acta Asiatica Varsoviensia; 2022, 35; 131-154
0860-6102
Pojawia się w:
Acta Asiatica Varsoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the vibration measurement and reduction possibilities in linear infrastructure for vacuum rail technology
Autorzy:
Korbiel, Tomasz
Rumin, Rafał
Blaut, Jędrzej
Czerwiński, Stefan
Kania, Jan
Powiązania:
https://bibliotekanauki.pl/articles/2064296.pdf
Data publikacji:
2020
Wydawca:
STE GROUP
Tematy:
vibration
hyperloop
low-pressure ultra-speed trains
vactrain
wibracja
pociąg ultraszybki
pociąg wakacyjny
Opis:
The paper presents the concept of vibration measurement and reduction system for rails in hyperloop technology. It is based on the experience of measuring vibrations in high-speed rail, the first commercial magnetic rail, and vibration reduction systems for these rails. The authors outlined a conceptual vibration monitoring system based on the MQTT protocol and the vibration reduction method. The vibration reduction systems based on variable-characteristic silencers and solutions used in research centers, especially in CERNie and LIGO, were de-scribed.
Źródło:
New Trends in Production Engineering; 2020, 3, 1; 450--461
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Off-grid power supply – the future of district heating
Autorzy:
Wiśniewski, Robert
Kania, Agata
Zima, Wiesław
Taler, Jan
Powiązania:
https://bibliotekanauki.pl/articles/27312224.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
district heating networks
district
heating chamber
modernization
off-grid
supply
preliminary
results of measurements
Opis:
The paper presents the first off-grid system designed to supply electricity to the equipment mounted on components of the district heating network in district heating chambers. The proposed off-grid system is equipped, among other things, with a turbine and a generator intended for electricity production. On-grid power supply is a common way of providing electricity with strictly defined, known and verified operating parameters. For off-grid power supply, however, there are no documented testing results showing such parameters. This paper presents selected results of tests and measurements carried out during the operation of an off-grid supply system powering the equipment installed in a district heating chamber. The values of voltage obtained from a turbine-driven generator are analysed in detail. The analysis results can be used as the basis for further works aiming to optimize the off-grid system of electricity supply to devices installed in district heating chambers.
Źródło:
Archives of Thermodynamics; 2023, 44, 3; 201--216
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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