跨导

Constructing triangle surface which interpolates the boundary curve and cross-boundary slopes on a triangle is the basic problem in computer aided geometric design, computer graphics and so on.

在三角形域上构造对边界曲线和跨界导数插值的三角曲面是计算机辅助几何设计和计算机图形学等领域中的基本问题。

Furthermore, stress, horizontal displacement and deflection of bridge structure are analyzed.

摘要］ 针对多跨连续刚构桥悬臂长度长、悬臂梁体重、施工荷载大等特点，结合重庆朝阳寺特大桥实际情况，通过理论分析和有限元数值模拟，对中跨、次中跨、边跨不同合拢顺序下，所需顶推力和顶推位移进行计算，并对桥梁结构的应力、水平位移及挠度进行了比选分析，提出并论证了采用计算预推值时先中跨再次边跨最后边跨的合拢方案，其突出优点是边跨合拢施工以挂篮和导梁代替搭设支架施工，措施简单易行、安全可靠。

Phospholipase D is notonly a major kind of phospholipid hydrolase in plant, but also a main kind of trans-membrane transduction enzyme.

磷脂酶D不仅是植物中一类主要的磷脂水解酶，而且是一类重要的跨膜信号转导酶类。

Aim To study the mutual influence of membrane current induced by receptors with diverse coupling modes in Xenopus oocytes .

目的研究不同偶联模式的兴奋性氨基酸受体所介导非洲爪蟾卵母细胞跨膜电流的相互影响。

Researchs show that magnetic field have effect of promoting some kind of cellssproliferation and tissue repair of injuries.

研究表明，磁场具有广泛的生物学效应，可影响培养的细胞基因的转录和翻译，改变细胞跨膜信号的转导。

Signaling for TGF-β occurs through a transmembrane heteromeric receptor complex of RI and RII serine/threonine kinase.

具有丝氨酸/苏氨酸激酶活性的I型和II型受体共同介导TGF-β超家族成员的跨膜信号传导。

Objective To research the influence of percolation filtration of Hirudo on bovine retinal pigment epithelialcells' signal transduction that is guided by protein tyrosine kinase.

目的研究水蛭渗滤液对酪氨酸蛋白激酶介导的牛视网膜色素上皮细胞跨膜信号转导途径的影响。

MTT assay FAK signaling pathway inhibitor genistein on human corneal epithelial cell cytotoxicity;RT-PCR detection of human corneal epithelial cells adhesion to fungus at different times,extracellular matrix protein including laminin,fibronectin,FN glass,Ⅳcollagen,transmembrane protein integrinαⅤ,integrinβ1(ITGβ1),as well as the FAK signaling pathway FAK1,FAK2 and Paxillin gene expression;Western blot detection of the signal transduction pathway adhesion-associated protein ITGβ1,FAK and PAX expression and the inhibition of genistein. Immunocytochemical method was used to observe the LN,FN and FAK expression in human corneal epithelial cells during interaction with the fungues;Laser scanning confocal microscope had a cell positioning on FN,FAK and PAX,observed the changing of the human corneal epithelial cytoskeleton after stimulated by fungues;Quantitatived by flow cytometry to detect of human corneal epithelial cells with PAX at ITGβ1 fungal expression after adhesion;Optical microscopy quantitied the fungues and human corneal epithelial cell adhesion and recorded to determination the integral optical density afrer adhesion;Scanning and transmitted electron microscope observed the changing of cell ultrastructure after fungues and human corneal epithelial cell adhesion.

第一部分真菌激活人角膜上皮细胞FAK信号转导通路的体外实验研究将三种常见致病真菌(白色念珠菌、烟曲霉菌和茄病镰刀菌)分别与人角膜上皮细胞共孵育，MTT法检测FAK信号通路抑制剂染料木黄酮的对人角膜上皮细胞的细胞毒性作用；RT-PCR检测真菌黏附人角膜上皮细胞后不同时间细胞外基质层连蛋白、纤连蛋白、玻连蛋白、Ⅳ型胶原、跨膜蛋白整合素αV、整合素β1(ITGβ1)，以及FAK信号通路中FAK1、FAK2和桩蛋白基因的表达情况；Western blot的方法检测黏附信号转导途径相关蛋白ITGβ1、FAK和PAX的表达，以及染料木黄酮对真菌刺激人角膜上皮细胞FAK信息通路活化的抑制作用；免疫细胞化学方法观察人角膜上皮细胞与真菌相互作用过程中LN、FN和FAK的表达；激光共聚焦显微镜对FN、FAK和PAX进行了细胞定位，并观察真菌刺激后人角膜上皮细胞骨架的变化；流式细胞仪定量检测人角膜上皮细胞ITGβ1与PAX在真菌黏附后表达的改变；光学显微镜观察真菌与人角膜上皮细胞黏附数量，记录并测定了黏附后积分光密度值OD扫描及投射电镜观察了真菌与人角膜上皮细胞黏附后，细胞超微结构的改变。

A high device linearity,high transconductance over a large gate voltage swing,high current drivability are found in DH-PHEMT.

因此，DH-PHEMT器件具有更好的线性度，在较大的栅压范围内具有高的跨导和更大的电流驱动能力。

A CMOS front-end ASIC for semiconductor radiation detectors is proposed.The ASIC comprises a charge sensitive amplifier,a gm-C type shaper,a peak detect and hold circuit,and two discriminators.The PDH and the discriminators,together with some logic circuits,provide the capability to reject trailing edge pile-up.The circuit has been designed in a 0.5?

提出了一种用于半导体辐射探测器读出的CMOS前端电路，该ASIC电路包含电荷灵敏放大器、跨导-电容型脉冲成形器、峰值检测/保持电路和甄别器，后两者结合一些逻辑电路实现了抑制脉冲成形器输出波形尾缘堆积的功能。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。