化学工程

College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

北京大学化学与分子工程学院，北京 100871

This company is the Chinese valve association member, the Chinese petrification material resource market member, the electrical power system valve supply network member, the recent company welcomes the recent development opportunity, the company may become Chinese petroleum natural gas group company level of supplies networks, the construction department project recommendation product, the national petroleum and chemistry industry bureau as well as the Chinese chemical industry equipment main corporation fixed-point production factory.

本公司是中国阀门协会会员、中国石化物资资源市场成员、电力系统阀门供应网络成员，最近公司又迎来新的发展机会，公司可成为中国石油天然气集团公司一级供应网络、建设部工程推荐产品、国家石油和化学工业局以及中国化工装备总公司定点生产厂家。

In order to overcome the shortcomings of acellular dermal matrix used as tissue engineering scaffold material, such as bad permeability, low degradation speed, and strong immunogenicity, a new type of collagen scaffold was prepared by applying various chemical, biological and physical comprehensive methods to deal with pigskin. The microstructure of the scaffold was observed under photomicroscope and scanning electron microscopy, and the in vitro degradation time, permeability, tensile-strength, porosity, shrinkage temperature were tested.

为了克服猪脱细胞真皮基质作为组织工程支架材料渗透性差、降解速度过慢、免疫原性较强等缺点，采用多种化学、生物与物理综合方法处理猪皮制备了一种新型天然胶原支架材料，通过光学显微镜、扫描电镜观察以及体外降解时间、透水汽性、拉伸强度、孔隙率、收缩温度等的测定，对其性能进行了研究。

It is of great importance to reveal the mechanism of stress-related and phytohormone signal pathways in plants.

本论文利用生物化学、分子生物学和遗传学分析等方法，通过对E3泛素连接酶SRAR1蛋白的生理生化功能及其参与激素ABA信号途径中的调控机制进行了系统的分析及全面的阐述，为SRAR1作为抗旱基因在基因工程中的应用提供了理论依据。

The branch includes Annual Reviews of Biochemistry, Biomedical Engineering, Biophysics and Biomolecular Structure, Ecology and Systematics, Genetics, Cell and Developmental Biology, Entomology, Genomics and Human Genetics, Immunology, Medicine, Microbiology, Neuroscience, Nutrition, Pharmacology and Toxicology, Physiology, Phytopathology, Plant Biology and Public Health.

这部分主要包括生物化学、生物医学工程、生物物理学和生物学分子结构、生态学和系统学、遗传学、细胞和发育生物学、昆虫学、基因组学和人类遗传学、免疫学、内科学、微生物学、神经系统学、营养学、药学和毒理学、生理学、植物病理学、植物生物学和公共卫生学的年评。

In this method, the function solves a quadratic programming subproblem at each iteration.

所谓大规模问题指的是出现在工程，化学等领域中有大量优化变量的问题。

Formation mechanism of particles; morphology and size control; nickel and cobalt oxalates; rhombohedron and fibre morphologies

工程科技I，化学，无机化学颗粒形成机理；形貌与粒度控制；镍钴草酸盐；菱柱状与纤维状形貌

In science and technology to achieve the first of the four, it is necessary to develop and launch China's first extraterrestrial objects and the landing detector detectors to inspect for the first time the use of the "Long March Route B" on the transfer of launch vehicle and spacecraft orbit for the first time The establishment and use of deep-space monitoring and control network for monitoring and control communications, for the first time to achieve a soft landing on the moon, the face on tour, the Spring River, and so the survival of a major breakthrough, carried out on tables topography and geological structure, mineral composition and chemical composition of the internal structure of the moon, the earth-moon Table on the environment and space exploration, and other activities supporting the basic completion of the lunar exploration engineering system.

在科学技术方面，实现四个第一，要研制并发射中国第一个地外天体着陆探测器和巡视探测器，第一次利用"长征三号乙"运载火箭发射地月转移轨道航天器，第一次建立和使用深空测控网进行测控通信，第一次实现月球软着陆、月面巡视、月夜生存等重大突破，开展月表地形地貌与地质构造、矿物组成和化学成分、月球内部结构、地月空间与月表环境等探测活动，建成基本配套的月球探测工程系统。

A basic knowledge of microbiology, will be detected with a microscope observation of micro-organisms, medium Preparation, disinfection and sterilization, separation and purification of micro-organisms, bacteria counting method A chemical analysis of the theoretical knowledge and can use chemical analysis methods and equipment of the components of material analysis Master fermentation process principles, understanding of beer, liquor, fermentation production technology Master protein related knowledge, PAGE gel electrophoresis technology, high-speed centrifugal Genetic engineering master the basic theory of knowledge, the extraction and purification of genes, PCR principle, gene recombination technology Master of the basic theoretical knowledge, the immobilized enzyme, the enzyme preparation Application Master of animal and plant tissue culture techniques of experimental steps studied experimental apparatus: Balance (scales, electronic scales, Analytical Balance), or acidity, spectrophotometer, liquid gas chromatography, acid-base titration apparatus, microscopes, centrifuges, ultrasonic cleaning, constant temperature oscillation incubator, super-clean table, steam sterilization pot, the pot constant temperature water bath, PAGE device apparatus, oven, fermenter, such as PCR instrument.

具备微生物理论基础知识，会用显微镜检测观察微生物，培养基的制备、消毒与灭菌，分离与纯化微生物，细菌的计数法具备分析化学的理论知识，能运用化学分析和仪器分析方法对物质的组分进行分析掌握发酵工艺原理，了解啤酒、白酒、发酵生产工艺掌握蛋白质相关知识，PAGE凝胶电泳技术，高速离心掌握基因工程的基本理论知识，基因的提取和纯化，PCR技术原理，基因重组技术掌握酶的基本理论知识，酶的固定化方法，酶制剂的应用掌握动植物组织培养技术的实验步骤学过的实验仪器：天平（台天平，电子天平，分析天平）、酸度计、分光光度计、液气相色谱仪，酸碱滴定仪器，显微镜，离心机，超声波清洗器、恒温振荡培养箱、超净工作台，蒸气灭菌锅、恒温水浴锅，PAGE电泳装置仪器、干燥箱、发酵罐、PCR扩增仪等。

objective to isolate and purify the antimicrobial peptides with anti-toxoplasma gondii activity isolated from the haemlymph of musca domestica larvae.methods the antimicrobial peptides of musca domestica larvae were induced by infection and injury were isolated and purified by trituration,centrifugalization and column chromatography.then the antimicrobial peptides with anti-toxoplasma activity were sieved by mtt colorimetric method and haemacytometry.results it was found that two antimicrobial peptides had anti-toxoplasma activity through resource s cationic column chromatography and superdex g75 gel column chromatography.conclusion the two antimicrobial peptides with anti-toxoplasma activity existing in the haemlymph of musca domestica larvae had different anti-toxoplasma effect.

作者单位：山西医科大学寄生虫教研室，太原 030001；化学生物学与分子工程教育部重点实验室山西大学生物技术研究所目的从家蝇幼虫血淋巴中分离纯化具有抗弓形虫作用的抗菌肽。方法通过损伤加感染的方法诱导家蝇幼虫大量表达抗菌肽，然后经过研磨、离心和层析等过程，将家蝇幼虫抗菌肽进行分离纯化，采用四甲基偶氮噻唑蓝比色法和血细胞计数法筛选对弓形虫速殖子有抑制作用的抗菌肽。结果经resource s阳离子柱和superdex g75凝胶柱层析后，筛选出2种对弓形虫速殖子有杀伤作用的抗菌肽。结论家蝇幼虫血淋巴中存在抗弓形虫作用的抗菌肽，而且不止一种，但其效果有所不同。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。