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Wyszukujesz frazę "Maciejczyk, A." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Prototype of electric bus of AMZ Kutno
Autorzy:
Pawelski, Z.
Maciejczyk, A.
Wróbel, T.
Powiązania:
https://bibliotekanauki.pl/articles/244239.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
electric bus
electric drive system
electric motor
inverter
microprocessor control system
pack of batteries
batteries management system
supercapacitor
energy recuperation system
Opis:
The article discusses the prototype bus AMZ Kutno electrically driven. The aim of the project prototype electric powered bus was appointed a consortium consisting of AMZ Kutno and Department of Vehicles and Fundamentals of Mechanical Engineering of Technical University of Lodz. As a subcontractor prototype solutions involved: for battery power BMZ Gliwice, and for the control system ENIKA Lodz. The prototype bus with complete drive system is an entirely polish construction. The paper presents assumptions for the construction of a prototype electric drive system. It describes the criteria for the selection of the engine. Was analysed the available parameters of electric motors. Adopted electric motor is discussed in detail in terms of its performance characteristics. Required performance characteristics of electric motor shown in figure. The considerations taken into account and the aspect of the selection of the inverter and the microprocessor control system control the amount of energy in batteries and supercapacitors, depending on the instantaneous energy demand and the expected driving performance. Was compared the parameters of available batteries and set them the necessary capacity. It has been specified parameters of adopted battery pack. Was described the role and selection of supercapacitors in energy recuperation system provided. The assumptions were supported by the necessary calculations.
Źródło:
Journal of KONES; 2014, 21, 1; 197-204
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oxidative stress – repair systems of oxidatively damaged biomolecules
Autorzy:
Kołodziej, U.
Maciejczyk, M.
Zalewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/1918622.pdf
Data publikacji:
2018-06-18
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
oxidative stress
oxidative damage
oxidative stress repair systems
Opis:
Molecular oxygen (O2), constituting the basis of life on Earth, is classified as a substance with oxidizing properties. Reacting with organic compounds, it leads to their oxidation and at the same time participates in reduction processes. In aerobic organisms, over 90% of oxygen undergoes a total four-electron reduction to produce water molecules (O2 + 4 H+ + 4e- → 2 H2O). The remaining 10% of oxygen, however, is not fully reduced, which results in the production of molecules referred to as reactive oxygen species (ROS). In high concentrations ROS can interact with cellular components (DNA, proteins and lipids), leading to the oxidation of these macromolecules. The resulting oxidation products interfere with the proper functioning of the body by influencing gene expression, intercellular signaling and apoptosis. These changes have been observed in numerous pathological conditions, such as neurodegenerative, cardiovascular, metabolic, autoimmune diseases, and cancer. However, in the context of evolution, living organisms developed specialized repair mechanisms to prevent cellular accumulation of the products of DNA, protein and lipid oxidation, including enzymatic mechanisms (e.g. nucleases, proteases, phospholipases) or removal of damaged DNA, proteins and lipids by apoptosis or autophagy. This article briefly discusses the mechanisms of oxidative modification of cell components and the main repair systems responsible for the removal of lesions in cells by oxidative damage.
Źródło:
Progress in Health Sciences; 2018, 8(1); 141-150
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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