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

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    Wyświetlanie 1-9 z 9
    Tytuł:
    Characteristics of the specific surface area of Vertisols from the Gezira Region in Sudan
    Autorzy:
    Sokolowska, Z.
    Hajnos, M.
    Elias, E.A.
    Alaily, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/24248.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    Vertisol
    soil
    specific surface area
    Sudan
    water vapour adsorption
    Źródło:
    International Agrophysics; 2004, 18, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling the Boronizing Kinetics in AISI 316 Stainless Steel
    Autorzy:
    Nait Abdellah, Z.
    Keddam, M.
    Elias, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1419004.pdf
    Data publikacji:
    2012-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.15.Aa
    68.55.A-
    68.47.De
    68.55.jd
    Opis:
    This work deals with the simulation of the growth kinetics of the $(FeB//Fe_2B)$ bilayer and the diffusion zone on a substrate of AISI 316 stainless steel exposed to the powder-pack boriding process, in the temperature range of 1123-1273 K and a time duration ranging from 2 to 10 h. The developed diffusion model employs a set of mass balance equations at the three growth fronts: [$(FeB//Fe_2B),$ (FeB/diffusion zone) and (diffusion zone/substrate)] under certain assumptions, including the effect of the incubation times during the formation of iron borides and the diffusion zone. For this purpose, a computer code written in Matlab (version 6.5) was created to simulate the boriding kinetics. A good concordance was obtained when comparing the experimental parabolic growth constants taken from the literature and the simulated values of the parabolic growth constants: ($k_{FeB},$ $k_1$ and $k_2$). Moreover, the present model was also used to predict the thicknesses of the $FeB$ and $Fe_2B$ layers and the diffusion zone thickness at various treatment times and boriding temperatures. The simulated values were in good agreement with the experimental borided layers thicknesses.
    Źródło:
    Acta Physica Polonica A; 2012, 122, 3; 588-592
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A longitudinal assessment of myoelectric activity, postural sway, and low-back pain during pregnancy
    Autorzy:
    Moreira, L. S.
    Elias, L. A.
    Gomide, A. B.
    Vieira, M. F.
    Do Amaral, W. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/307463.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    elektromiografia
    stabilność postawy
    bóle kręgosłupa
    electromyography
    low back pain
    postural balance
    pregnancy trimesters
    stabilometry
    Opis:
    The present study aimed at investigating the control of upright quiet standing in pregnant women throughout pregnancy, and whether low-back pain exerts influence on this motor task. Methods: Myoelectric signals from postural muscles and stabilometric data were collected from 15 non-pregnant and 15 pregnant women during upright quiet standing. Electromyogram envelopes and center of pressure metrics were evaluated in the control group, as well as in pregnant women in their first and third trimester of pregnancy. A correlation analysis was performed between the measured variables and a low-back pain disability index. Results: Pregnant women exhibited a decreased maximum voluntary isometric activity for all postural muscles evaluated. Additionally, the activity of lumbar muscles during the postural task was significantly higher in the pregnant women in comparison to the non-pregnant controls. The soleus muscle maintained its activity at the same level as the gestation progressed. Higher postural oscillations were observed in the anteroposterior direction while mediolateral sway was reduced in the third trimester of pregnancy. No correlation was detected between the lowback pain disability index and neuromechanical variables. Conclusion: This study provides additional data regarding the functioning and adaptations of the postural control system during pregnancy. Also, we provide further evidence that postural control during quiet standing cannot be used to predict the occurrence of low-back pain. We hypothesize that the modifications in the neural drive to the muscles, as well as in postural sway may be related to changes in the biomechanics and hormonal levels experienced by the pregnant women.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2017, 19, 3; 77-83
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Serological cross-sectional survey of equine infectious anemia in Saudi Arabia
    Autorzy:
    Kasem, S.
    Hashim, O.
    Alkarar, A.
    Hodhod, A.
    Elias, A.
    Abdallah, M.
    Al-Sahaf, A.
    Al-Doweriej, A.
    Qasim, I.
    Abdel-Moneim, A.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/16539306.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    equine infectious anaemia
    equine
    ELISA
    Saudi Arabia
    seroprevalence
    Opis:
    The equine infectious anaemia virus (EIAV) is one of the most serious equine diseases worldwide. There is scarce information on the epizootiology of equine infectious anaemia (EIA) in Saudi Arabia. Given the importance of the equine industry in Saudi Arabia, this cross- -sectional study aims to provide information about the prevalence of EIAV based on serological surveillance of the equine population in the country. A total of 4728 sera samples were collected (4523 horses and 205 donkeys) between December 2017 and November 2019. All samples were tested using commercially available EIAV ELISA. All tested samples showed negative results for EIAV antibodies with a 95% confidence interval. The results provided evidence that Saudi Arabia’s equine populations (horses and donkeys) are currently free of EIAV. The results also suggest the need for continuous monitoring of EIAV and strict regulation when importing horses from other countries.
    Źródło:
    Polish Journal of Veterinary Sciences; 2022, 25, 3; 365-368
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of organic matter in selected profiles from the Gezira Vertisols as determinated by thermogravimetry
    Autorzy:
    Elias, E.A.
    F, Alaily
    Siewert, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/24822.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Źródło:
    International Agrophysics; 2002, 16, 4; 269-275
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cracking patterns in the Vertisols of the Sudan Gezira at the end of dry season
    Autorzy:
    Elias, E.A.
    Salih, A.A.
    Alaily, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/24080.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    cracking
    dry season
    Vertisol cover
    Vertisol
    soil
    Gezira
    moisture content
    Sudan
    crack
    Źródło:
    International Agrophysics; 2001, 15, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected morphological characteristics of soils from Gezira Vertisols, with particular reference to cracking
    Autorzy:
    Elias, E.A.
    Salih, F.M.
    Salih, A.A.
    Alaily, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/25468.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    cracking
    soil colour
    dry season
    moisture regime
    soil
    Gezira
    mineral fragment
    Sudan
    root distribution
    soil acidity
    soil morphology
    morphological property
    Źródło:
    International Agrophysics; 2001, 15, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of Point Defect Distributions in Tantalum
    Autorzy:
    Djaafri, A.
    Kadoun, A.
    Driss-Khodja, M.
    Elias, A.
    Djaafri, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1029821.pdf
    Data publikacji:
    2018-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.82.Bg
    61.80.Ed
    61.72.jj
    61.72.jn
    Opis:
    We have investigated the point defect distributions in tantalum under irradiation by means of the Marlowe code based on the binary collision approximation. The study is carried out by simulating displacement cascades initiated with primary knock-on atom energies ranging from 5 to 20 keV. The Molière, Born-Mayer and average modified Lenz-Jensen potentials are used to describe the interactions between tantalum atoms. We have examined the creation of damage, the spatial defects distribution, and the vacancy clustering in tantalum. The results show that with an appropriate recombination radius, less than 16% of the created defects constitute permanent Frenkel pairs. Spatial configuration of defects indicates a separation between the two point defect types, vacancies and interstitials. The Molière potential favors the production of a greater number of displaced atoms and the development of voluminous cascades more than the other potentials. The cascade volume distributions deviate clearly from a Gaussian distribution. They are large and very stretched toward higher volumes for all used potentials. Only small vacancy clusters are formed in tantalum under irradiation and about 41% of the produced vacancies are considered as isolated
    Źródło:
    Acta Physica Polonica A; 2018, 133, 1; 39-44
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recent distribution and phytosociological affiliation of Ludwigia palustris in Slovakia
    Autorzy:
    Dite, D.
    Elias Jr., P.
    Dite, Z.
    Simkova, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/58948.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Opis:
    Ludwigia palustris has always been a very rare species in Central Europe. In Slovakia, its occurrence remained unconfirmed for over 60 years and it was therefore considered extinct. The paper reports its rediscovery on two sites in SE Slovakia. Both localities were found in the Latorica River catchment area in 2015 when persistent summer droughts enabled the development of natural mudflat vegetation in the dried oxbows. Confirmation of this historic site indicates the long-term survival ability of the species. We assigned L. palustris dominated vegetation in the class Isoëto-Nanojuncetea, association Ludwigio palustris-Lindernietum procumbentis. This association is new to Slovakia as well as for Central Europe. The stands of this association developed on the exposed muddy shores of disconnected oxbow lake.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2017, 86, 1
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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