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    Wyświetlanie 1-4 z 4
    Tytuł:
    Electromobility – the Importance of Power Quality and Environmental Sustainability
    Autorzy:
    Chudy, Aleksander
    Mazurek, Paweł Artur
    Powiązania:
    https://bibliotekanauki.pl/articles/123711.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    electromobility
    electric vehicle charging
    power quality
    environmental sustainability
    Opis:
    Electric vehicles (EVs) play a significant role in a gradual shift towards low-carbon society. However, the impact of electromobility on a power system includes different power quality problems that need to be mitigated. Power Quality Analyzer SONEL PQM-700 was used for the measurement and analysis of the power quality parameters during slow charging (at ̴11A, ̴8,3 A and ̴5,5 A) of a BMW i3 electric vehicle. The read-out mode of the device was considered. The state of EV charge was 30%. The measurements focused on the values of supply voltage, drawn current, harmonics, values of active, reactive and apparent power. In this study, type 2 connector was used to charge the EV. The power quality parameters during the BMW i3 charging were within limits, not a single parameter was exceeded. Additionally, the current state of electric vehicle charging methods and EV charging infrastructure was described and power conditioning solutions were presented.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 10; 15-23
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of electromagnetic waves on human reproduction
    Autorzy:
    Wdowiak, Artur
    Mazurek, Paweł A.
    Wdowiak, Anita
    Bojar, Iwona
    Powiązania:
    https://bibliotekanauki.pl/articles/989982.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    human reproduction
    electromagnetic waves
    infertility
    exposure to electromagnetic fields
    Opis:
    Electromagnetic radiation (EMR) emitting from the natural environment, as well as from the use of industrial and everyday appliances, constantly influence the human body. The effect of this type of energy on living tissues may exert various effects on their functioning, although the mechanisms conditioning this phenomenon have not been fully explained. It may be expected that the interactions between electromagnetic radiation and the living organism would depend on the amount and parameters of the transmitted energy and type of tissue exposed. Electromagnetic waves exert an influence on human reproduction by affecting the male and female reproductive systems, the developing embryo, and subsequently, the foetus. Knowledge concerning this problem is still being expanded; however, all the conditionings of human reproduction still remain unknown. The study presents the current state of knowledge concerning the problem, based on the latest scientific reports.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2017, 24, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Low frequency electromagnetic waves increase human sperm motility – A pilot study revealing the potent effect of 43 kHz radiation
    Autorzy:
    Wdowiak, Artur
    Mazurek, Paweł A.
    Wdowiak, Anita
    Bojar, Iwona
    Powiązania:
    https://bibliotekanauki.pl/articles/2162024.pdf
    Data publikacji:
    2018-12-20
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    electromagnetic radiation
    semen motility
    sperm hyperactivation
    sperm kinetic variables
    metal detecting
    infertility
    Opis:
    Objectives Abnormalities in the timing and course of spermatozoa capacitation and hyperactivation underlie common pathologies related to male infertility. Recent data shows that low frequency electromagnetic waves may influence cell membrane potential and permeability. It is therefore possible that low frequency electromagnetic waves could affect the maturation and motility processes of spermatozoa. The 43-kHz wave generator was used for modeling the impact of environmental exposure to low frequency electromagnetic radiation on human sperm. Material and Methods Sperm samples were gathered from 103 fertile, healthy men aged 25–30 years old and performed computer-assisted sperm analysis. After initial examination, each participant’s semen sample was divided into 2 aliquots (control and experimental) and placed in separate automated incubators. The samples constituting the experimental group were placed into the exposure system that emitted 43-kHz electromagnetic waves. Sperm motility was assessed at 3 h, 12 h and 24 h. Results Exposure to a 43-kHz radio frequency increased the percentage of sperm in progressive motility by up to 5.8% and the velocity of said sperm by up to 2 μm/s. Moreover, the total number of hyperactivated spermatozoa was significantly increased in the semen exposed to the electromagnetic signal. Conclusions In vivo environmental exposure to 43-kHz waves may promote the development of infertility related to premature capacitation outside of the vaginal tract. Exposing semen to this particular frequency may also boost the capacitation and hyperactivation of spermatozoa in vitro, prior to conducting assisted reproductive therapies.Int J Occup Med Environ Health 2018;31(6):723–739
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2018, 31, 6; 723-739
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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