三键

Based on the characteristic that boracic acid (H3BO3) has a condasation and complexation reaction with 3-MCPD forming a negative-charged adduct in aqueous phase, arapid method for the direct determination of 3-MCPD in HVP by capillary electrophoresis with conductivity detection was investigated.

利用硼酸能与3-氯-1，2-丙二醇(3-MCPD)上的2个邻位羟基进行键合生成配合阴离子、从而增加多羟基化合物的负电荷的特性，在15 mmol/L 三羟甲基氨基甲烷-10 mmol/L H3BO3(pH 8.3)介质中，采用毛细管电泳/电导检测法分离检测了3-MCPD，该方法的线性范围为0.5-20 mg/L，检出限为0.1 mg/L(S/N=3)。

Starch esterification was proceeded with native cassava starch and three saturated free fatty acids: capric acid (C10:0), myristic acid (C14:0) and stearic acid (C18:0). The fatty acid modified starch was prepared by using lipase PS as the catalyst.

中文摘要本研究以天然树薯淀粉为反应基质，与三种不同链长饱和脂肪酸羊蜡酸(C10：0、肉豆蔻酸(C14：0)与硬脂酸(C18：0)分别於水相及有机相行酯化反应，并且以工业中常用的脂肪水解酶lipase PS催化酯键合成，可得脂肪酸修饰淀粉(fatty acid modified starch， FAMS)。

The diamine monomer containing trifluoromethyl and ether link reacts with dianhydride monomer for condensation to produce said polymer material.

用含有三氟甲基和醚键的二胺基单体与二酐单体进行缩和反应，合成本发明的聚合物材料。

Many-body analysis was also carried out to obtain relaxation energy and many-body interaction energy (two, three, and four-body), and the most stable conformer has the basis set superposition error corrected interaction energy of －102.61 kJ/mol.

多体相互作用分析表明，最稳定的氢键结构经基组重叠误差校正后总相互作用能为-102.61 kJ/mol，驰豫能，两体与三体相互作用能对总相互作用能的贡献较大，四体相互作用能对总相互作用能有很小的贡献。

Described above is the computer power switch in the open for cold start when all initialization to complete the work, if we under DOS by Ctrl + Alt + Del combination of keys (or select from Windows to restart your computer) to hot start, then the POST will be the course of the past jump directly from the beginning of the third step, another step-by-step detection of the fifth CPU and memory tests would no longer be carried out.

上面介绍的便是计算机在打开电源开关进行冷启动时所要完成的各种初始化工作，如果我们在DOS下按Ctrl＋Alt＋Del组合键（或从Windows中选择重新启动计算机）来进行热启动，那么POST过程将被跳过去，直接从第三步开始，另外第五步的检测CPU和内存测试也不会再进行。

Step three, by the right cursor arrow keys to open sub-menu item procedures.

步骤三、按光标的向右方向键打开程序的子菜单项目。

The thermolysis of the isomerized products derived from norbornadiene-coordinated carbonyl iron complexes gave two sorts of the thermolytic products based on different substituents on the olefin ligands. One is the corresponding diiron dimer complex, and the other is the complex in which the C-C bond of the cycloolefin ligand is broken.

以降冰片二烯三羰基铁络合物衍生出来铁卡宾络合物的异构化产物的热解，随着烯烃配体上取代基的不同，而分别得到了络合物发生二聚和烯烃配体发生碳碳键断裂的两类热解产物。

In the aspects of research method, we took the method of preparing sol at first and then impregnating the wood to obtain ceramic-wood composite; this method made the wood use efficiently and increased the wood's weight gain percent. The ceramic-wood composite with performances of well decay resistance, dimensional stability, effloresce resistance and high strength was obtained by importing the cymene to the net of gel as the result of co-hydroxylation between MTES and TEOS. Making use of XPS ,we found that the apex of Si2p、O1s、C1s had evident chemical shift , which validated the existence of Si-O-C bonding.Key Words: Sol-gel, Ceramic-wood composite, Modified sol, Ecomaterials

在工艺方法上，采用先制备溶胶，然后浸注木材的工艺方法具有原料利用率高、提高增重率的优点；采用甲基三乙氧基硅烷和正硅酸乙酯共水解的方法，将甲基引入陶瓷化复合木材的凝胶内部，所制备的材料具有尺寸稳定性好、具有耐风化和耐腐朽性，强度高的特点；首次利用X射线光电子能谱，发现了Si2p、O1s和C1s谱峰发生了明显的化学位移，证实了Si－O－C键合作用的存在。

In view of the above steps a second phenomenon, clone the operating system is to store the default camera driver in C: \ Windows \ Driver \ Camera \ 301P the following folder, when you click on the new CD-ROM drive to install the camera, the system will not prompt already exists there and the camera drivers to uninstall this driver, please find this folder and removed; step II, first to install a new camera driver, and then plug in the camera loaded with hardware, the installation is complete restart the computer after normal use; step three, repeat the above two steps do not directly click on the new CD-ROM installation the latest drivers, plug in the camera after the system detects new hardware and auto-complete loading hardware drivers; step four, entered the Device Manager, can see the image processing equipment has been successfully installed, but when you open the "AMCAP" Preview images can not be preview, black and white, black phenomenon; five steps to the right mouse button on the image processing equipment "Vimicro USB PC Camera (ZC0301PL)" update driver, a dialog box appears choose "from the list or designated as the location of the installation steps to choose the next six to choose "Do not Search" and enter "to install from the floppy disk interface.

针对以上第二种现象步骤一、克隆操作系统是将摄像头驱动默认存放在C：\Windows\Driver\Camera\301P文件夹下面，当你点击新的摄像头驱动光盘安装时，系统不会提示已经存在有摄像头驱动并把此驱动卸载，请把这个文件夹找到并删除掉；步骤二、先安装新的摄像头驱动，再插上摄像头装载硬件，安装完成后重新启动电脑后可以正常使用；步骤三、不需重复以上两个步骤，直接点击新的光盘安装最新的驱动，插上摄像头后系统检测到新硬件，并自动完成硬件驱动装载；步骤四、进入到设备管理器中，，可以看到图像处理设备已经成功安装，但当你打开"AMCAP"预览图像时会出现无法预览、白屏、黑屏现象；步骤五、把鼠标右键放在图像处理设备的"Vimicro USB PC Camera（ZC0301PL）"更新驱动程序，出现对话框后选择"从列表或指定为位置安装步骤六选择下一步后选择"不要搜索"，进入"从软盘安装界面。

The influence of atmosphere on the thermal degradation behavior and thermal degradation activation energy of untanned collagen fibers are discussed.

皮革收缩行为的实质是在热的作用下，氢键作用被削弱，三股螺旋结构发生破坏，肽链分子发生横向摇摆所致。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。