查询词典 composition factor

Power factor correction;topology;control;active power factor correction;zero current switching;boost;average current type

论文导师杜少武，论文学位硕士，论文专业电力电子与电力传动论文单位合肥工业大学，点击次数 14，论文页数 50页File Size2394K

The best four single-factor components were determined according to the effects of different carbon and nitrogen sources, inorganic salts, water-material ratio on xylanase-producing observed in the single-factor test; and on the base of this test, the best combination of tested factors were confirmed through the orthogonal experiment and its zymology properties was also studied.

通过单因素试验观察了不同碳源、氮源、无机盐、水料比4种因素对产木聚糖酶的影响，确定了4种最佳的单因素成分；在单因素的基础上，再通过正交试验确定了所试因素的最佳组合，并对其粗酶的酶学性质进行了研究。

AIM: Activin A, a member of transforming growth factor superfamily, is the negative regulator factor in liver regeneration.

目的：Activin A是转化生长因子超家族成员，是肝脏再生过程中的负向调节因子。

They should acuminous find the change of Internet, and find the status of company and the key of factor. Do with the key of factor, even extend the market.

电子商务人才要能能够敏锐的觉察出互联网的变化趋势，找到自己企业在互联网中的位置，与决定位置的关键因素，从而对症下药，进而能够在互联网上圈地直至细化市场。

Bufotoxin collected from Bufo bufo garigarizans was diluted into 4 different kinds of concentration of 4,6, 8 and 10mg/mL as a factor A, and Enterobacter aerogenes original solutions were diluted with LB liquid medium at 1∶104 and 1∶105 as a factor B.

把采自中华大蟾蜍的蟾酥用蒸馏水稀释成4、6、8、10mg/mL共4种浓度，作为因素A，用LB液体培养基将活化的产气肠杆菌原液按1∶104和1∶105稀释，作为因素B，采用二因子方差分析观察了蟾酥对产气肠杆菌抑菌圈直径的影响，并分析了蟾酥浓度与抑菌圈直径之间的相关关系。

The first passage of YS-MSCs which grew in good condition was obtained, and adipogenic differentiation of YS-MSCs was induced by dexamethasone and insulin, and angioblast was induced by vascular endothelial growth factor and basic fibroblast growth factor.

取生长状态良好的第1代细胞，以地塞米松、胰岛素定向诱导卵黄囊间充质干细胞向脂肪细胞方向分化；以血管内皮生长因子和碱性成纤维细胞生长因子体外诱导其向血管内皮细胞方向分化。

Objective To investigate the influence of hypoxia on the expressions of hypoxia inducible factor 1α and vascular endothelial growth factor,the angiogenic response and its mechanism.

目的：探讨缺氧对人胶质瘤细胞株U251缺氧诱导因子-1α和血管内皮生长因子表达及血管生成反应的影响及机制。

Their effects on COX-2 and an angiogenic factor, vascular endothelial growth factor were also investigated.

采用噬哩蓝法观察阿司匹林和NS一398对体外培养胃癌SGC7901细胞增殖的影响。

Vascular endothelial growth factor is a major angiogenic factor involved in physiological as well as pathological angiogenesis.

生理和病理性血管生成中，血管内皮生长因子(vascularendothelialgrowthfactor，VEGF)是主要的血管生成因子。

Vascular endothelial growth factor is an angiogenic factor that promotes the growth of solid tumor by inducing angiogenesis.

实质固态的肿瘤细胞生长可藉由血管内皮生长因子激活血管的形成。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。