实验

The Sino-Italy collaborative DAMA experiment aims to search for WIMPsusing NaI crystal detector. It has the same ultimate goal with L3＋Cosmics.

中意合作的DAMA粒子暗物质实验是一项用NaI晶体直接寻找WIMP的实验，它与寻找重粒子的实验具有相同的终极目标。

Methods: The telomerase activity in breast cancer cells and MRC-5 cell line were detected semi-quantitively by TRAP-ELISA assay. Virus proliferation as- say and cell viability assay were used to evaluate the proliferation and cytolysis selectivity of CNHK300, and the results were compared with those of wtAd5. The breast cancer cells were treated with CNHK300 combining paclitaxel to evaluate the killing effect of the combined regimen.

用TRAP-ELISA方法检测乳腺癌细胞株(MDA-MB-453、SK-BR-3)和正常成纤维细胞株MRC-5的端粒酶活性；进行病毒增殖实验和细胞生长抑制实验，并与野生型腺病毒wtAd5进行对比，验证CNHK300选择性复制和选择性杀伤能力；用细胞生长抑制实验进一步考察CNHK300与化疗药物紫杉醇联合应用对乳腺癌细胞的杀伤作用；用Western blot检测腺病毒E1A在细胞中的表达。

Based on the criterion that the volume of estimated parameter's joint confidence region should be minimum, which is a sequential experimental design norm for optimal parameter estimation proposed by Box and Lucas, the observations for the adsorption of n -decane on 5 A molecular sieves were determined sequentially, and it is found that the observations should b.

根据Box和Lucas所提出的使待估参数联合置信域的容积趋于最小的参数估算的序贯实验设计准则，推导得出了正葵烷吸附等温线实验观测点的安排原则，发现对于一元线性模型，实验观测点应安排在可操作区的两端。

METHODS: Total 60 male Wistar rats were randomly divided into 6 groups, i.e., normal control group , DMN model group , large dose treatment group , middle dose treatment group, small dose treatment group and Dongbao gantai treatment group. The liver fibrotic model was induced by i.p. dimethylnitrosamine for 4wk. The relative herbs were given after model establishment in each treatment group and the administration lasted for 6 weeks. Decollate to get the blood and The serum hepatofibrosis indexes, hyaluronic acid, collagen IV, pro-collagen type III and laminin were measuredwith radioimmunoassay. SOD and MDA were measured with biochemistry method. The liver pathological changes were observed in each group of rats.

将60只雄性Wistar大鼠随即机分正常对照组、模型对照组、实验大剂量组(20ml/kg/d)、实验中剂量组(10ml/kg/d)、实验小剂量组(5ml/kg/d)及东宝肝泰药物对照组；腹腔注射二甲基亚硝胺制备大鼠肝纤维化模型，连续灌胃6周，断头取血，生化检测血清SOD、MDA；放射免疫法测定血清HA、LN、PCIII及IV-C；取肝左叶做HE染色和Mallory胶原染色，观察肝病理组织学改变。

Light output analysis tests character of spectrum radiate of pyrotechnic mixtures and analyses wave band distribute of light by comparing different static blaze spectrograms of the pyrotechnic mixtures. Screen out the better pyrotechnic mixtures according to request of pumping source. Press experiments in airtight erupt container experiment, which simulate the circumstance that pyrotechnic mixtures deflagrate in quartz pipe, realize the press influence to the quartz pipe wall and the disciplinarian of axes press variety. Apply these pyrotechnic mixtures to Nd:YAG lasers as the pumping source and compare pumping efficiency of different pyrotechnic mixtures. Pumping efficiency is an important standard which checkout if these pyrotechnic mixtures are the better pumping source. Sensitivity experiment analysis incarnate security of pyrotechnic mixtures that is the essential parameter in the process of design, manufacture and use.

通过对烟火药的热分析(爆热分析、DTA、TG)，了解备选烟火药反应过程中的能量输出特性及反应过程中的物理、化学变化规律；光输出分析实验对烟火药配方光谱辐射特征进行测试，比较其静态火焰光谱图，分析不同烟火药剂光辐射波段分布特征，根据激光泵浦源的辐射要求，进而筛选更符合激光泵浦源药剂要求的烟火药；模拟烟火药在石英管中爆燃环境的密闭爆发器压力分析实验反映了烟火药在石英管中反应时对管壁的压力影响以及管内轴向压力变化规律；将烟火药作为泵浦源应用于Nd：YAG固体激光器，比较不同烟火药的泵浦效率，作为检验烟火药是否适合作为激光泵浦源的重要标准；感度实验分析体现了各种烟火药的安全性，是烟火药设计、制造和使用的必要示性数。

In the middle school chemistry teaching should choose the appropriate demonstration experiment, according to the concrete course content and the teaching goal, the appropriate readjustment carries on the demonstration experiment the order, and the attention beforehand completes the full preparatory work, the guarantee demonstration experiment security, demonstrativeness, the visibility and the creativity.

中学化学教学中应选择合适的演示实验，根据具体的教学内容和教学目的，适当调整进行演示实验的顺序，并注意事先做好充分的准备工作，保证演示实验的安全性、示范性、可见度和创造性。

Culinary technology ; comprehensive experimentation ; designable experimentation ; experimental system ; culinary education

烹饪工艺；综合性实验；设计性实验；实验体系；烹饪教育

Two kinds of the divergent detonation driving with point initiation are designed in this paper.

进行两种点爆发散爆轰驱动的实验设计，完成两种实验模型下爆轰驱动的数值模拟，并与实验结果作了比较。

By example analysis and experiment result compare,it introduces the usage and peculiarity of Multisim 2001 software platform of EDA technology in design type of experiment study on digital circuits,the advantages and disadvantages of EDA technology experimenthave been compared with actual operation,the important of combining"imitation experiment"and"material experiment"in design type of experiment of digit circuit teaching is put forward in this paper.

目前，国内高校的数字电路实验教学模式主要以2种方式进行：一种是完全采用常规的TTL逻辑器件(如逻辑门、触发器等中小规模集成电路)进行硬件连线测试，大多采用面包板或由多个双列直插座组成的各种实验箱。这种方式容易出现器件接触不良，接线不慎而烧坏芯片、电源等故障，学生实验课时得不到有效利用，影响对学生综合设计性实验能力的培养与提高。

In the single crystal of C60 with a FCC structure,positron mainly appears outside the C60 molecule.The main annihilation space is the interspace between molecules.The calculated positron bulk lifetime in C60 is 352ps, which agrees with experiment value of 356ps in literature.In carbon nanotube bundles with different dimeters,as the diameter of carbon nanotubes increases,the main space where positron appears changes from the interspace of carbon tubes to the space inside carbon tubes,the radio between positron annihilation with valence eletrons and core eletrons becomes larger,the positron bulk lifetime in carbon nanotube increase rapidly first and come to be a constant at the end.The calculated positron lifetime of carbon nanotube with a dimeter of 0.8～1.6ns is 332～470ps,which agrees with the experiment value of 394ps.Positron annihilation has been studied in widly used compound semiconductors.

计算结果表明：在片层结构的石墨晶体中，正电子主要在石墨层间的空隙中湮没，计算出的石墨中的正电子寿命为208 pS，与文献中的实验结果215 ps符合很好；在金刚石单晶中，正电子主要在碳原子之间的空隙中存在并发生湮没，计算出的金刚石中的正电子寿命为115 ps，文献中的实验结果110 ps左右符合；在面心立方结构的C60晶体中，正电子主要在C60分子球壳内外侧及分子之间存在，C60球形分子中心正电子分布很少，正电子的湮没区域集中在C60分子之间的空隙区域，计算出的C60中的正电子寿命为352 ps与文献中的实验结果356ps相符合；对于不同管径碳米管束中的正电子分布，随着碳纳米管直径的增加，碳纳米管束中的正电子由主要在碳纳米管管间的区域出现转变为主要在碳纳米管管内中心的区域出现：碳纳米管束中的正电子与碳原子的价电子的湮没概率变得越来越大，与核心电子的湮没概率变得越来越小；碳纳米管束中正电子的湮没寿命先迅速增大，而后趋于一定值。

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