生物样品

Terahertz radiation, which is a kind of electromagnetic wave between the infrared and microwave bands, belongs to far-infrared band. THz time-domain spectroscopy which developed in the 1980\'s has the advantages of high signal to noise ratio, obtaining the absorption coefficient and refractive index of the sample at one time , low energy that can not distroy the biology organise and so on.

太赫兹辐射是指频率位于微波和红外光之间的电磁波，属于远红外波段；20世纪80年代发展起来的THz时域光谱技术，具有信噪比高，能同时获得样品的吸收系数和折射率，能量低，不会对生物组织造成破坏等优点，在材料和生物学等领域得到了迅速的发展和广泛的应用。

The mechanical property testing shows that the seamless PLLA tubes perform excellent radial strength,which indicates that the mechanical properties of biodegradable stents made of these tubes was supposed to be excellent.PLLA and its composites were first used in preparing seamless tubes as antecedency of laser-cut biodegradable coronary stents in china.Finite element analyses of the biodegradable coronary stent model indicate the explorative design basically meets the requirement of reasonable and applicable stents.There is not such kind of research yet in domestic.Optimum laser-cuttting parameters of CO2 laser was cauculated based on experiential formula,within it,biodegradable coronary stents,especially those with complex structure would be manufacutured from seamless tubes quickly by laser microprocessing with high consistency to the design model.The processing efficiency of the CO2 laser demonstrated in experiential formula by us will play an important guiding role in manufacturing biodegradable stents by laser-processing.Our stents that ascribed to laser-cutted,slotted tube stent are proved to be biodegradable, self-expandable and good biocompatible,basically reach the international level on the aspest of manufacturing procedures and design.

研究结果表明：壳聚糖改性材料综合性能优于纯PLLA，更适合于作为可降解冠脉支架的原材料；自主设计的探索性自膨胀管状闭环型可降解冠脉支架的性能符合冠脉设计要求，设计、验证生物可降解冠脉支架模型的研究在国内还未见报道；制备的改性PLLA无缝管的力学性能优越，可通过激光切割获得冠脉支架，这是国内首次采用聚乳酸材料来制备通过激光加工出可降解冠脉支架的无缝管；二氧化碳激光器加工精度能达到加工要求，加工出来的血管支架名义设计与实测值误差小，实现了冠脉支架、尤其是带有复杂外观设计冠脉支架的快速化、规范化加工，对二氧化碳激光器加工聚乳酸材料的效果研究在国内外属于首创，获得的经验公式对日后的深入研究有重要的指导意义；制备的支架为激光切割管状闭环型冠脉支架，支架外观设计、支架加工手段、支架的性能都基本接近国际水平，支架样品符合设计的理念，可以实现自膨胀功能。

The metabolites of endophytes fungus was developed with 2D-TLC, and antibacterial active components was detected and tracked by bioautography of Bacillus subtilis model and TTC coloration. Result: The results showed that the development system screening was easy, and antiblastic spot was accurate and limpid.

以二维薄层色谱将金钱松内生真菌代谢产物样品展开，以枯草芽孢杆菌为指示菌，氯化三苯四氮唑为显色剂，采用培养基覆盖生物自显影技术对其抗细菌活性成分进行检测、追踪。

Objective: To establish a new method for determination of arsenic in biological fluids.

目的：建立测定生物液体样品中砷的新方法。

Objective To establish a large biological sample bank from a great number of participants for genetic cohort study.

大型生物样本库实施条形码管理系统可缩短每份样品的处理时间，提高工作效率1。

The invention provides a dynamic condition near body real condition, to accurately and easily evaluate the biological activity of sample.

本发明提供的动态环境更接近人体真实环境，能够准确，方便地批量评价被评价样品的生物活性。

With this method,biotin sample can be determined directly without any separation.

本法应用于含生物素样品的分析，可以不经分离，直接测定。

In chapter 3, we developed a CE-ESI-MS method to analysis mixture peptides (peptide hormones of braine and intestine and bradykinin-related peptides), and applied to analysis of human saliva with satisfactory results.

在第三章，我们采用CE-ESI-MS对由脑肠肽和激肽组成的生物多肽进行了分析研究，并将建立的方法应用于分析人体唾液样品中的多肽。

The structure of shells reveals that the calcium carbonate storage is dynamic and is controlled by organic matrix.

观察收集到的样品可以知道贝壳内的碳酸钙储存是会变动的，而生物制造的有机物可以控制碳酸钙的结晶。

Clinochlore, illite and quartz were found to be in different depths of the seafloor sediments using the X-ray diffraction analysis. In addition, by use of the SEM observation, no biogenic minerals were found.

本研究以 X-ray 绕射分析海床沉积物中的矿物，每个深度的样品皆发现有 Clinochlore， Illite， Quartz 等矿物，再经 SEM 的观察都没有发现生物源矿物。

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