porous cell 中文意思是什麼

porous cell 解釋
多孔槽；素燒槽
  • porous : adj. 1. 多孔的；有氣孔的；〈比喻〉漏洞多的。2. 能滲透的。3. 素燒（瓷）的。adv. -ly ,-ness n.
  • cell : n 1 小室，單室；隔間，艙；〈詩〉茅舍；（單個的）蜂窩，蜂房。2 〈詩〉墓穴，墓。3 （大修道院附屬的...
  1. There was no difference in other biologic characteristic of mscs between the two separation method, such as cell anchorage ratio and clone formation ratio. ( 2 ) plga film presented uniformity frame with no protuberance and fissure under scanning electron microscopy ( sem ). big aperture with smooth wall and average 400 m i n size running - through each other was observed in porous plga substrate, around the big aperture there were many round micropores about 5 m size. all of the structure were equal and uniform, which satisfied the further research work. ( 3 ) mscs adhesion at earlier time was promoted by biotiegenrafter 3h, cell number was ( 1. 5 0. 18 ) 105 in the plga film coated with biotiegen group, which was significantly higher than that in plga film group ( p < 0. 01 ) and higher than that in coverslip group ( p < 0. 05 ), which cell number was ( 1. 04 0. 21 ) 105. after 6h and 12h biotiegen could not promote cell adhesion, and cell proliferation and alkaline phosphatase ( alp ) activity were not promoted dramatically during 9 days. ( 4 ) cell adhesion was promoted by fibronectin or collagen type i

    G ） i型膠原、纖維粘連蛋白促進細胞增殖，細胞接種后3 、 6 、 gd三個檢測時間點，實驗組細胞均明顯高於對照組。與1型膠原相比，纖維粘連蛋白刺激作用更強。 ） i型膠原、纖維粘連蛋白尚能誘導mscs細胞向成骨細胞分化，不僅表達成骨細胞標志物ocn 、 alp 、 opnmrna ，而且堿性磷酸酶活性明顯增高，堿性磷酸酶及鈣結節7第四軍醫大學博士學位論文一染色均強陽性， i型膠原組mscs細胞堿性磷酸酶活性較fn組更高，有顯著性差異；同時，兔疫組化染色表明，經纖維粘連蛋白作用的mscs1型膠原表達陽性。
  2. The flow characteristics, distributions of current density and chemical components, and the performance of these two different designs are calculated and compared. the flow and mass transport characteristics are analyzed in detail, which indicate that strong forced convection is produced in the interdigitated flow field, which consist of dead - end gas channel that force the gases through the porous electrodes. results of comparison show that forced convection induced by the interdigitated flow field in the diffusion layer effectively enhances mass transport of reactants and products, thus leading to a higher cell performance and the limiting current density

    在傳統流道設計的pemfc中，反應物從流道到催化層的供應和生成物從催化層到流道的排出主要是以擴散為主，而在交叉梳狀流道設計中，以流動帶動的對流傳遞則占據了主導地位，而且這種以對流為主的傳遞機理大大提高了反應物和產物傳遞速率，從而有效地改善了電池的極限電流密度和極化性能等特性。
  3. The effect of thermal conductivity of membrane on the distribution of temperature in the fuel cell is discussed, and the effect of inlet velocity and porosity of porous diffusion layers on the fuel cell performance are analyzed

    討論了質子膜的導熱率對電池內溫度分佈的影響。分析了進料速度和多孔擴散層孔隙率對電池性能的影響，結果表明較快的進料速度和較大的擴散層孔隙率都能有效提高電池的性能。
  4. Part iii hvec, vsmc and fibroblast were seeded onto inner surface of tubular porous pga and phb scaffold precoated with collagen. sead hvec, vsmc and fibroblast onto three porous polyglycolic acid and poly - ? - ydroxybutyrate scaffolds precoating with collagen, which different caliber but embedded each other. observe cell growth and differentiation on these scaffolds

    通過用膠原分別包埋處理的三個管徑大小不同、但能相互嵌套的pga及phb管形支架，並種植人臍靜脈內皮細胞、人血管平滑肌細胞、人成纖維細胞進行三維立體生長培養，觀察細胞生長分化情況。
  5. 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。
  6. Thermally induced phase separation ( tips ) technique was utilized to fabricate biodegradable cp / plla scaffolds which are capable of applying in tissue engineering. it is a good and simple method to make 3d interconnected porous material. ideally, bone scaffold should have high porosity and uniformly distributed pores with more than 50 m better between 100 ~ 300 m to provide adequate space for cell seeding or growth while tips generally produces small pores of ~ 20 m

    該方法較其他制備多孔材料的特點是可以得到三維連通的材料，工藝較為簡單，但相分離法一般得到的多孔材料的孔徑較小（ 20 m左右） ，而骨組織工程用的多孔支架材料需要的孔徑在50 m以上，最好在100 300 m之間。
  7. Using those techniques, it is possible to reconstruct vascular model in vitro whose structure and function are same as autogenous vessels. in this experiment two degradable materials were precoated with cross - linked type i collagen, moulded into tubular porous scaffold, and then seeded with ecs. using rotary cell culture technique, vascular model was constructed in vitro

    本實驗採用膠原與幾種可降解材料相復合，構成管形支架，在體外環境下，探索構建分別含內皮細胞、平滑肌細胞及成纖維細胞的三層結構的組織工程化血管，三種細胞相互作用、相互支持，形成一個在形態和功能與正常血管近似的組織工程化血管。
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