研究

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。

Meanwhile, we highlight several research corners for future further study, the trade-offs on resource allocation within perennial plant had not been proved, the relationship of neighbor effects and reproductive allocation was still not so clear for individual plant, there was no definite conclusion on perennial plant reproductive strategy under different neighbor effects and different habitats. The relationship between reproductive allocation and sexual allocation , the cause of resource distribution in anthotaxy structure, the similarities and differences of reproductive allocation and the maintain mechanism within all kinds of reproductivest rategy need a further investigation. In addition, a molecular study is required for explaining the variation mechanism and the biological meanings on seed size research.

指出生活史研究仍存在不足首先是研究内容上，资源分配在多年生植物中的权衡仍未被有力证明，邻体效应与繁殖分配的关系在个体水平上仍不明了，多年生植物在不同邻体效应和生境下将采取何种繁殖对策目前尚无明确的结论；繁殖分配与性分配之间的关系，引起花序结构上资源分配差异的原因，各种繁殖对策中繁殖分配异同与维持机制等问题仍有待于进一步的研究；种子大小的变异机制以及生物学意义仍未得到令人满意的答复，更需分子水平上的研究来解释其机理。

Starting from the fundamental research rules of anthropogeography and based on the research achievements in other subjects and science,the present paper penetrates into the standard research paradigms of geopolitics and geo-economics and the similarities and differences between them.

笔者从人文地理学的基本研究规律出发，在借鉴其他学科已有研究成果的基础上，深入细致地探讨了地缘政治和地缘经济的研究范式及其异同，将国家利益、地理环境、区域、控制、合作、国内利益关系等作为地缘政治和地缘经济的基本研究范式。

Other studies by United States universities, medical and injury prevention centers, and private research organizations have involved basic research in biomechanics and head injury epidemiology, 3-D child head anthropometry, helmet fit research, and seat belt restraining design effects on the body.

其他的研究由美国大学，医疗和伤害预防中心和私人研究组织都涉及基础研究，生物力学和颅脑损伤流行病学，三维人体测量儿童的头部，头盔适合研究，并限制安全带设计的影响的机构。

Therefore, the future research on curriculum theory are supposed to include the integration in methodology, scientific construction of discipline system, apparentness in local study, conversation from research agents, reflection arousing of researchers and focusing on future study, only in this way can the research on curriculum theory make great improvement.

为了使我国的课程论研究在未来取得突破性进展，我国未来的课程论研究应形成整体论的方法论理论体系、构建科学的课程理论学科体系、凸显课程研究的本土化、促进课程理论之间的对话、唤醒研究者的反思意识以及注重对课程论的未来研究等。

In recent years, apple scab threatens apple production in China. Hence this paper summarizes and discusses the occurrence, distribution, primary infection source, symptom characteristics and control measures of apple scab in China. The paper expounds on the problems and research directions of apple scab in China. It also provides guidelines for future research and control of apple scab.

本文对我国苹果黑星病的发生、分布、初侵染来源、病害发展过程、症状特点、主要防治措施及研究历史等进行了概括和总结，并提出了我国苹果黑星病研究中存在的问题和未来的研究方向，以期为我国苹果黑星病的防治、深入开展相关研究等提供参考。

Firstly,the emphysis of culture research has transformed from apriorism into objective reality.Secondly,the purpose of culture research has transformed from cognition of culture into application of culture.

从方法论上看，文化研究的范式转变体现了方法论上的进步，主要表现在以下几个方面：一是文化的研究重心从先验的抽象实体转向现实的生活实践，二是研究的目的从单纯的文化认识转向文化的应用，三是研究视野从地域性文化转向全球性文化。

It puts forward the research aspect of KM and KM problems that need to resolve, includes basic research of KM, subject research of KM, KM standardization, KM measure, combination of KM and artificial intelligence, KM network and country architectonic research, etc.

提出了知识管理研究的方向和需要解决的问题：包括知识管理的基础研究，知识管理的学科研究，知识管理的标准化，知识管理的测度，知识管理与人工智能的结合，知识网络和国家知识体系的研究等。

In their study, Dr. Asci and colleagues investigated the relationship between CAC and renal bone disease, as shown on bone biopsy, in 224 prevalent hemodialysis patients recruited from 8 centers operated by Fresenius Medical Care, which supported the study.

在他们的研究中，Asci医师与其同事研究CAC与肾脏疾病之间的关系，以骨切片显示结果，针对224位自8家由Fresenius医疗公司营运的中心收纳的透析病患剂进行研究，该公司赞助这项研究。

More recently , studies like the ASCOT study and the CAMELOT study , or the VALUE study have been re-evaluated.

最近一些研究，像 ASCOT 研究、 CAMELOT 研究或 VALUE 研究被重新评价。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。