fixation surface 中文意思是什麼
fixation surface
解釋
注視面-
The results show that compared to salix psammophila barrier, ecomat cover does decrease surface sand transportation rate ( sstr ), increase surface soil nutrient, and enhance growth of platycladus orientalia to the extent, undoubtedly ecomat is one of surface cover materials for sand - fixation and revegetation ; compared to two other ecomat part - cover types ( banded and chessboard ), the all - cover type can also decrease sstr, increase surface soil nutrient significantly, growth condition of platycladus orientalia, however, is not good as expected, which may attributes to lower infiltration rate of slight rainfall ; as for two part - cover types, chessboard type is better than banded type in increasing of sstr and enhancement of platycladus orientalia growth
研究結果表明，與沙柳沙障相比，生態墊確實可以降低近地表的輸沙率，提高生態墊下土壤的養分含量，一定程度上提高檸條的地徑和高度，可見生態墊是一種很好的促進流沙固定和植被恢復的地表覆蓋材料；與其它兩種生態墊鋪設方式（品字狀和帶狀）相比，全鋪可以顯著降低近地表的輸沙率，提高其下土壤的養分含量，但檸條的生長狀況卻略差，這可能與全鋪降低了小雨入滲的可能性有關；就兩種部分鋪設的方式而言，無論從降低近地表的輸沙率還是促進檸條的生長土來看，品字狀都明顯優于帶狀。 -
Cell adhesion to surface of the substrate is essential to development of the anchorage - dependent cells. only after adhering to surface followed by spreading can cells develop and proliferate. most synthetic polymers used as orthopaedic matrix substitute present hydrophobicity, which may correlates to the low degree of cell attachment. modification with cell adhesion protein / peptides can be benificial to the cell adhesion on polymers and then affect the cell proliferation and differentiation. cell attachment to substrate is primarily mediated by integrins, a widely expressed family of heterodimeric surface receptors. most extrcellular matrix proteins such as fibronectin, osteopontin, collagen type i, bone sialoprotein and vitronectin contain an arg - gly - asp ( rgd ) sequence which is specific to the fixation of cell membrane receptors like integrin. the main aim of this research is to measure, assess adhesion, proliferation of rabbit marrow stromal cells ( mscs ) on the polymers coated by fibronectin, collagen type i or biotie gen, which includes : ( 1 ) biologic characteristics of rabbit mscs were observed by two types of separating method in primary culture. ( 2 ) adhesion, proliferation and differentiation of mscs cultured on polymers coated with biotiegen were assessed. ( 3 ) also, adhesion, proliferation and differentiation of mscs were assessed on plga film or porous plga substrates coated with fibronectin, or collagen type i respectively. ( 4 ) bone formation was observed on the porous plga substrates coated with collagen type i in vivo. this research aims to give new way to make novel synthetic bone with cell adhesion and high bone induction capabilities
因此將這些蛋白包被、固定到材料表面，觀察骨組織工程種子細胞mscs細胞的粘附、生長特性是本研究的中心環節，並從以下方面進行探討： （ 1 ）採用不同原代細胞分離方法，研究其對mscs細胞的生物學特性影響。 （ 2 ）檢測基因勝肽膠對mscs細胞粘附、增殖及分化的影響。 （ 3 ）分別採用型膠原及纖維粘連蛋白（ fibronectin ， fn ）包被聚乙醇酸-乳酸共聚物（ poly （ 1actide - co - glycolide ） ， plga ）膜及多孔塊型plga材料，觀察細胞在單層或三維培養狀態下，型膠原及fn對mscs細胞粘附、增殖及向成骨細胞分化效應及能力。 -
They are designed for adhering to rough surface, fixing the nameplate, sealing and shock adsorption, e. g. hook fixation, household electrical appliance shock resistance etc
適用於粗糙表面的粘接以及銘牌的粘接和密封減震等，如掛鉤固定、家用電器防震等。 -
They are designed for adhering to rough surface, fixing the nameplate, sealing and shock absorption, e. g. hook fixation, household electrical appliance shock resistance etc
適用於粗糙表面的粘接以及銘牌的粘接和密封減震等，如掛鉤固定家用電器防震等。 -
Denitrification and nitrogen fixation in 10 cm 20 cm horizon are higher than those in other soil horizons, in which the partial pressure of oxygen is lower than that in surface horizon, and the number of microorganisms is more than that in below horizon
高寒草甸土壤中未發現有好氣性自生固氮菌，但嫌氣性自生固氮菌的數量眾多。在高寒草甸嚴酷的自然條件下，嫌氣性自生固氮菌為大氣氮素固定的主要承擔者。
分享友人