定向进行

Finally, the cytotoxic and antibacterial activities of the oxamido-bridged binuclear complexes were studied in vitro.. This dissertation consists of three sections as follows:1. The crystal structure of a oxamide dinitrate,(1) [H_4dmaeoxd](NO_3)_2 H_2dmaeoxd = N,N\'-bis[2-ethyloxamide, has been obtained. The diversity of complexes with different structures is carried out by successful synthetic strategy of controlling species of metal ions, counter anions, pH values and solvents in the course of synthesis. Four dinuclear complexes bridged by trans-dmaeoxd2-: [Cu_2_2](ClO_4)_2 (2), [Cu_2_2](ClO_4)_2 (3),、[Cu_2(Me_2phen)_2](ClO_4)_2 (4), [Cu_2_2(H_2O)_2] (5); Four dinuclear complexes bridged by cis-dmaeoxd2-: [NiNi_2](ClO_4)_2 (6), [CuNi_2](ClO_4)_2·2CH_3OH (7), [CuZn_2]-(ClO_4)_2·2H_2O (8), [Cu(H_2O)Ni_2](ClO_4)_2.0.5CH_3OH (9); three 1-D polynuclear complexes: [Cu_2]_n·nH_2O (10), [Cu_2(H_2O)_2-]_n·4nH_2O (11), [Cu_2(H_2O)]_n(NO_3)_n·2nH_2O (12); one 2-D polynuclear complex,[Cu_6_3(μ_3-OH)_2(H_2O)_2]_n(ClO_4)_(4n).2nH_2O (13); the others: [VO(H_2O)]·2H_2O (14), [Zn_2_4](ClO_4)_2·H_2O (15), [Cu_2]·2DCM (16) have been synthesized and characterized by X-ray single crystal diffraction, elemental analysis, IR spectra.

本论文主要包括以下三部分：一、合成得到了一个草酰胺配体硝酸盐的单晶结构，[H_4dmaeoxd](NO_3)_2 (1)；通过调控金属离子的种类、端基配体、抗衡阴离子、溶剂、pH值等条件定向合成了四个反式草酰胺桥联双核铜配合物：[Cu_2_2](ClO_4)_2 (2)、[Cu_2_2](ClO_4)_2 (3)、、[Cu_2(Me_2phen)_2](ClO_4)_2 (4)、[Cu_2_2(H_2O)_2] (5)；四个顺式草酰胺桥联同/异双核配合物：[NiNi_2](ClO_4)_2 (6)、[CuNi_2](ClO_4)_2·2CH_3OH (7)、[CuZn_2]-(ClO_4)_2·2H_2O (8)、[Cu(H_2O)Ni_2](ClO_4)_2.0.5CH_3OH (9)；三个一维聚合物： [Cu_2]_n·nH_2O (10)、[Cu_2(H_2O)_2-]_n·4nH_2O (11)、[Cu_2(H_2O)]_n(NO_3)_n·2nH_2O (12)；一个二维聚合物： [Cu_6_3(μ_3-OH)_2(H_2O)_2]_n(ClO_4)_(4n)。2nH_2O (13)；单核钒配合物[VO(H_2O)]·2H_2O (14)、草酸根桥联双核锌配合物[Zn_2_4](ClO_4)_2·H_2O (15)、美洛西康铜配合物[Cu_2]·2DCM (16)，利用元素分析、摩尔电导、红外光谱、电子光谱和单晶X-射线衍射对上述所得化合物进行了结构表征，探讨了结构影响因素，并研究了其超分子结构。

However, hair follicle stem cells prefer hair destiny in vivo, unless the injury of epidimal or sytogland occurs. In 1990, Cosarelis et al. proposed "The Bulge activated hypothesis", they think the signal moleculars emit from the dermal papillar induce the downward migration and differentiation of hair follicle stem cells.

然而，体内正常情况下毛囊干细胞首先向毛发谱系定向分化，只有在表皮或皮脂腺受到损伤时，它们才进行程序重组而向表皮或皮脂腺方向分化。1990年，Cosarelis等提出毛囊的&隆突激活假说&，认为来源于毛乳头的信号因子触发了毛囊干细胞向下迁移并分化，从而维持了毛发周期的正常循环。

Unidirectional solidification experiment on Zn-2%Cu peritectic alloy was carried out by Bridgman method. Lamellar structure was obtained at a solidification velocity between 1600μm/s and 6400μm/s.

摘 要：利用Bridgman法对Zn-2%Cu包晶合金进行了快速定向凝固实验研究，当生长速度在1600～6400μm/s时，得到了类似于共晶的层片状组织。

Scanning tunneling microscope was used to investigate the in vitro assembly of R-phycoerythrin from the marine red alga Polysiphonia urceolata. The results showed that R-PE molecules assembled together by disc-to-disc while absorbing on HOPG surface, which just looked like the rods in the phycobilisomes.

将海洋红藻R 藻红蛋白吸附到刚揭开的高定向石墨表面上，然后用扫描隧道显微镜在纳米尺度上进行直接观察，发现纯化的R 藻红蛋白在体外自然聚集时，能够&面对面&的聚集在一起，形成非常规则的类似藻胆体的杆状结构。

Objective: To obtain the anatomical data of three-dimensional morphology and localization of the dorsal thalamus and the pulvinar,which are necessary for the sterotactic operations of human brains.

目的：对丘脑与丘脑枕在脑内的空间形态和位置资料进行定位研究，为脑立体定向手术提供解剖学基础。

To obtain the anatomical data of three-dimensional morphology and localization of the dorsal thalamus and the pulvinar,which are necessary for the sterotactic operations of human brains.

柴东乔 ，楼佳庆，卢洪煊，田菊霞目的：对丘脑与丘脑枕在脑内的空间形态和位置资料进行定位研究，为脑立体定向手术提供解剖学基础。

A pair of primers were designed based on M1 gene sequence of known H5N1 Avian influenza virus.M1 gene was cloned from total RNA,extracted from tissue of H5N1 subtype virus inoculated embryo by reverse transcriptase-polymerase chain reaction using high proofreading polymerase(Pyobest~TM DNA Polymerase),and expressed using Invitrogen champion~TM pET directional TOPO expression system.Recombinant protein containing polyhistidine(6xHis) tag in N-terminal about 29.8kDa in size,wac obtained and purified.

根据已发表的禽流感病毒M1基因序列设计合成PCR克隆引物，自接种H5N1亚型病毒的鸡胚组织中提取RNA，反转录后采用高可信度DNA聚合酶经PCR扩增M1基因，采用Invitrogen定向表达系统(ChampionTMpET directional TOPO expression system)进行克隆表达，纯化获得N末端携带多聚组氨酸标签的重组蛋白，分子量约29.8 kDa。

Some of these pants, develop education is that early implant knowledge, let the child to read, back, counting, painting, etc, with the children to overload training, Some children chose a wishfully as the direction, prematurely, and ignored for children education quality oriented, Some parents of children's education has great blindness, fashion and trend blindly, regardless of the characteristics and the children.

有的望子成龙心切，拔苗助长，认为早期教育就是灌输知识，让孩子认字、背诗、数数、画画、弹琴等，对孩子进行超负荷训练；有的一厢情愿地为孩子选定一个成才的方向，过早地为孩子定向，而忽视素质教育；还有些家长对孩子的教育有很大的盲目性，一味追求时尚、潮流，而不顾孩子的特点和兴趣。

Considering the angle sensor as the camera. and analogizing the theodolite measuring system to the photogrammetric system.

本文将经纬仪工业测量系统模拟摄影测量系统，把角度传感器视为摄影机，将物方点的角度观测值化算为虚拟像点坐标，从而按摄影测量光束法平差进行两台或多台经纬仪间的系统定向和空间坐标解算。

The invention provides a sulfur oriented adsorption control method for calcining active lime in a rotary kiln comprising the following steps: the rotary kiln calcines the massive limestone using the mixture of the coal fines and active lime fine silts as fuels, the sulfur in the flue gas is adsorbed using the sulfur adsorption and desulphurizing ability of the active lime fine silts, meanwhile the sulfur-adsorbed kiln dust is separated from the calcined active lime by means of screening to get low sulfur-content active lime.

本发明提供的回转窑煅烧活性石灰中的硫定向吸附控制方法，具体是：回转窑以煤粉与活性石灰微细粉粒的混合物为燃料，在对块状石灰石煅烧时，利用活性石灰微细颗粒所具有的硫吸附与脱硫能力对烟气中的硫进行吸附，同时通过筛分将吸附了硫的窑灰与煅烧过的活性石灰分离，而得到低硫含量的活性石灰。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐