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    Wyświetlanie 1-5 z 5
    Tytuł:
    Traditions of siheyuan manor in Chinas modern architecture
    Autorzy:
    Zhou, Ping
    Kazhar, Nina
    Powiązania:
    https://bibliotekanauki.pl/articles/2067627.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska
    Tematy:
    residential manor Siheyuan
    Dougong
    architectural traditions of China
    architektura Chin
    tradycja architektoniczna
    dwór mieszkalny Siheyuan
    Opis:
    The article continues the study of the role of traditions in the development of modern Chinese architecture. The analysis of the most common form of the Chinese people's apartment building (manor) Siheyuan was made. It is shown that today’s Chinese architects are turning to this type of national architecture, critically reviewing the historical heritage and formulating a new aesthetics of space; shaping an environment that meets the climatic conditions of the country.
    Artykuł kontynuuje badanie roli tradycji w rozwoju nowoczesnej architektury chińskiej. Przedstawiono analizę najczęściej spotykanej formy сhińskiego domu mieszkalnego (dworu) - Siheyuan. Ustałono, że nowocześni architekci Chin zwracają się do tego rodzaju architektury narodowej, krytycznie oceniając dziedzictwo historyczne i formułując nową estetykę przestrzeni. One kształtują środowisko, spełniające warunki klimatyczne kraju
    Źródło:
    Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo; 2020, 26 (176); 174-182
    0860-7214
    Pojawia się w:
    Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Feasibility study of RANS in predicting propeller cavitation in behind-hull conditions
    Autorzy:
    Zhang, Yuxin
    Wu, Xiao-ping
    Lai, Ming-yan
    Zhou, Guo-ping
    Zhang, Jie
    Powiązania:
    https://bibliotekanauki.pl/articles/1573849.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    RANS
    Computational Fluid Dynamics (CFD)
    propeller cavitation
    turbulence model
    grid sensitivity
    Opis:
    The propeller cavitation not only affects the propulsive efficiency of a ship but also can cause vibration and noise. Accurate predictions of propeller cavitation are crucial at the design stage. This paper investigates the feasibility of the Reynolds-averaged Navier–Stokes (RANS) method in predicting propeller cavitation in behind-hull conditions, focusing on four aspects: (i) grid sensitivity; (ii) the time step effect; (iii) the turbulence model effect; and (iv) ability to rank two slightly different propellers. The Schnerr-Sauer model is adopted as the cavitation model. A model test is conducted to validate the numerical results. Good agreement on the cavitation pattern is obtained between the model test and computational fluid dynamics. Two propellers are computed, which have similar geometry but slightly different pitch ratios. The results show that RANS is capable of correctly differentiating the cavitation patterns between the two propellers in terms of the occurrence of face cavitation and the extent of sheet cavitation; moreover, time step size is found to slightly affect sheet cavitation and has a significant impact on the survival of the tip vortex cavitation. It is also observed that grid refinement is crucial for capturing tip vortex cavitation and the two-equation turbulence models used – realizable k-ε and shear stress transport (SST) k-ω – yield similar cavitation results.
    Źródło:
    Polish Maritime Research; 2020, 4; 26-35
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    EF1α is a suitable housekeeping gene for RT-qPCR analysis during osteogenic differentiation of mouse bone marrow-derived mesenchymal stem cells
    Autorzy:
    Chen, Xingyun
    Zhang, Bo
    Zhao, Yan
    Liu, Ping
    Zhou, Yuanguo
    Powiązania:
    https://bibliotekanauki.pl/articles/1039535.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    EF1α; RGS4; 18S rRNA; RT-qPCR; RPL 13a; CCG-1986
    Opis:
    The expression of predominant housekeeping genes used in RT-qPCR can vary during development and differentiation. The frequently used housekeeping genes (ACTB, GAPDH, 18S rRNA, EF1α and RPL 13a) were evaluated during an early stage of the osteogenic differentiation of mouse bone marrow-derived mesenchymal stem cells (mMSCs) (under normal conditions or treated with CCG-4986) to identify housekeeping genes whose expression remained constant during osteogenic differentiation. When we used RGS4 mRNA, which was determined as copy number per μg of total RNA, to normalize gene expression, we observed that the relative EF1α expression profile was consistent with RGS4 expression after treatment with CCG-4986. All the relative expression profiles of the EF1α, 18S rRNA, and RPL13a housekeeping genes were consistent with RGS4 profiles determined by measuring mRNA copies under normal osteogenic differentiation conditions. The expression profiles calibrated by ACTB and GAPDH were not consistent with those determined using mRNA copy number in untreated cells or cells treated with CCG-4986 under osteogenic differentiation conditions. Under normal osteogenic differentiation conditions, EF1α, 18S rRNA, and RPL 13a are suitable housekeeping genes for RT-qPCR analysis. However, EF1α is the only suitable gene upon CCG-4986 treatment.
    Źródło:
    Acta Biochimica Polonica; 2013, 60, 3; 381-386
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dexamethasone inhibits U937 cell adhesion via the down-regulation of ROCK1 activity
    Autorzy:
    Liu, Dong
    Chen, Xing
    Xiong, Ren
    Ning, Ya
    Li, Ping
    Peng, Yan
    Liu, Ping
    Zhao, Yan
    Yang, Nan
    Zhou, Yuan
    Powiązania:
    https://bibliotekanauki.pl/articles/1039650.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    dexamethasone
    ROCK1
    fasudil
    non-genomic effects
    Opis:
    Objective. To explore the effect of dexamethasone (DEX) on monocyte adhesion function and its underlying mechanism. Methods. The effects of DEX and fasudil on adhesion of cultured U937 monocytes to human umbilical vein endothelial cells (HUVEC) following stimulation with phorbol myristate acetate (PMA) were studied; Changes in the Rho-associated coiled-coil protein kinase 1 (ROCK1) protein content and activity were evaluated. Results. DEX and fasudil significantly inhibited U937 cell adhesion rates under PMA stimulation and inhibited ROCK1 activity. Mifepristone (RU-486) and cycloheximide (CHX) did not alter these effects of DEX. Conclusions. DEX interferes with the adhesion function of U937 cells through the inhibition of ROCK1 activity.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 4; 557-560
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification and tissue distribution of a novel rat glucocorticoid receptor splice variant
    Autorzy:
    Ju, Huiming
    Wang, Xia
    Liu, Zongping
    Liu, Ping
    Zhao, Yan
    Xiong, Renping
    Zhou, Yuanguo
    Chen, Xingyun
    Powiązania:
    https://bibliotekanauki.pl/articles/1040640.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    glucocorticoid
    glucocorticoid receptor
    receptor isoform
    splice variant
    Opis:
    Glucocorticoid receptor (GR) is a steroid hormone receptor that has been shown to play important roles in diverse cellular and physiological processes. More and more evidence has revealed that the effects of glucocorticoids are mediated by the glucocorticoid receptor through genomic or nongenomic mechanisms. A growing number of glucocorticoid receptor splice variants have been identified in human tissues, but few are known in rat tissues. In this work, a novel rGR cDNA, called rGRβ, was cloned from Sprague Dawlay (SD) rat liver. Sequence analysis revealed that the rGRβ mRNA was 39 base pairs (bp) shorter than the rGR mRNA reported earlier. The deleted segment is located in exon 1 and encodes 13 repeated glutamine residues. Both the rGR and rGRβ mRNAs were quantitated by Northern blot hybridization using non-homologous glucocorticoid cDNA probes. Results showed that the rGR and rGRβ mRNAs were most abundant in the lung, the least abundant in the heart, and there were more rGR and rGRβ mRNAs in the kidney than in the liver. The identification of rGRβ may contribute to the understanding of the genomic or nongenomic effects of glucocorticoids.
    Źródło:
    Acta Biochimica Polonica; 2009, 56, 1; 109-113
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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