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On the basis of the former researches and taking into account the practice of our country, this paper take the low period repeat loading experiment for three rigid conjunction node of steel beam and concrete wall, researching their load-bearing capacity and earthquake resistance performance under the low period repeat loading action, the main content concentrate on the following aspects:(1) Analyzing the three joint's damage shape、hysteretic curve、change of rigidity、yielding load、limit load、damage load、durability、energy dissipation capacity、the strain of the key position and the moment transferring mechanism.(2) Comparing the joint's load-bearing capacity and earthquake resistance performance among the joints with different stud bolt diameter and different connection plate thickness, researching some factor's influence on the work performance of the joint such as the high and strong stud bolt specification、connection plate thickness .
本文在前人研究的基础上,结合我国的实际情况,对3个钢梁-混凝土墙刚接节点试件进行了低周反复荷载试验,对其在低周反复荷载作用下的承载力和抗震性能进行了研究,内容主要集中在以下几个方面:(1)对3个节点试件在低周反复荷载作用下的破坏形态、滞回曲线特性、刚度变化、屈服荷载、极限荷载、破坏荷载、延性性能、耗能能力、关键部位的应变分布情况及节点核心区的受力情况进行了试验研究和理论分析;(2)比较了不同螺栓规格和不同连接板厚度的节点试件的承载力和抗震性能,研究了高强螺栓规格和连接板厚度这2个因素对节点工作性能的影响;(3)介绍了光纤光栅传感技术在土木工程领域中的应用研究现状及其基本原理;并通过对比试验,探讨了光纤光栅传感器用于土木工程检测的可行性及实现途径。
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In recent years, were very many to ganoderma lucidum's chemical composition and the clinical function research, also gradually increased to ganoderma lucidum's germ cell spore for medicinal purposes value research.
近年来,对灵芝属真菌的化学成分及临床作用的颇多,对灵芝的生殖细胞孢子药用价值的研究也逐渐增加,随着研究的不断深入,研究工作者采用多种有效的对灵芝孢子进行破壁研究,笔者综述破壁灵芝孢子粉的研究近况。
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The research indicates that users' interface perception, operating behaviors, using requirements and self-representation are derived from the illegibility of research objects, quantitative research, and qualitative research. The indetermination of the language and images are derived from the illegibility of research methods, while the differences between the researcher and user are derived from the illegibility of the researcher.
研究表明,用户的界面认知、操作行为、使用需求和自我陈述等属于研究对象的模糊性,定量研究、定性研究,以及语言和图像的不确定性等属于研究方法的模糊性,而研究者与用户的各种差异性等属于研究者的模糊性。
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Second, wetland landscape pattern dynamic change of Kenli County Take TM as the information source, according to studies the region wetland ecosystem present situation characteristic, wetland is divided into 10 kinds: irrigation paddy field, pit pond water surface, cultivation water surface, artificial ditch, reservoir water surface, salt field, rivers water surface, reed, shallow seas and tidelands, beach. The wetland landscape area is remarkable dropt from 1987 to 2004.In 1987 the wetland area occupied 14.10% of Kenli county, but only was 12.33% in 2004, it reduced 6155.12 hm2 in 17 years and average reduced 362.07 hm2 every year, the reduction scope of shallow seas and tidelands wetland is biggest 3894.78 hm2. The shallow seas and tidelands and reed are frequent transformation with other type.
2查清了研究区湿地景观格局动态变化规律以TM影像为信息源,根据研究区域湿地生态系统现状特征,把垦利县湿地分为10类;湿地景观面积在研究时段内呈显著下降趋势,1987年湿地面积占整个研究区总面积的14.10%,但到2004年只占12.33%,17年共减少6155.12 hm2,平均每年减少362.07 hm2,其中滩涂湿地面积减少幅度最大3894.78 hm2;从各湿地类型之间的转换来看,各种湿地景观之间、湿地和非湿地之间相互转化和逆转并存,滩涂和苇地与其他地类转换频繁;研究区湿地景观斑块数量增多,景观多样性指数1987年为1.7643,2004年下降到1.7105,均匀度指数由1987年的0.6873上升到2004年的0.6923。
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Action research is the main methodology used in this research with these data of qualitative observing and collecting questionnaires.
在研究方法上,本研究主要将透过行动研究的方式来进行,并以质性研究中的观察法,搭配问卷搜集的方式,来进行研究。
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Many kinds of statistical word sense disambiguation methods and technologies in home and abroad are analyzed,and lots of literatures are referred to in this paper.
本文参考大量的文献资料,分析了当前国内外统计词义消歧研究中采用的多种方法和技术,指出了统计词义消歧研究的关键问题,并围绕关键问题阐述了统计词义消歧的研究进展,探讨了研究中存在的问题和未来研究的重点。
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The journal publishes research in radiation oncology and the related specialties of radiobiology, cancer biology, and medical physics, focusing on investigational aspects of clinical and basic research related to radiotherapy; reports on translational research, i.e. laboratory observations with significant implications for clinical radiotherapy and clinical studies that indicate new approaches for basic research; as well as molecular radiobiology and clinical trials.
杂志刊载有关放射肿瘤学和相关专业,包括放射生物学,肿瘤生物学,和医学物理学的研究,主要聚焦于有关放射治疗的临床和基础研究;有关移植研究等,临床放射治疗的重要应用的实验观察和用于说明新方法在基础研究中的作用的临床研究;以及分子放射生物学和临床试验。
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By accessing to this website, you can search large amount of resources about animal research, primatology and primate research, funding and regulating biomedical research, classroom resources, scientific societies involved in health research and other primate research centers.
登录该网站,可查询到有关动物研究、灵长类动物学、灵长类动物研究、生物医学研究项目与基金项目、教学资源、健康研究学会与其它灵长动物研究中心的相关信息。
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Function and haematology;⑤investigate its growth-promotion and machanism;⑥do research on
提取了活性成份——生物碱;②研究它对动物的毒性和无毒性剂量;③研究了它对动物的毒性机理和病理;④进行了它对动物免疫功能和对血液学影响的研究;⑤研究了它的促生长作用及其机理;⑥还进行了残留及临床增重试验研究。
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Along with the research and rapid development of micro Electro-Mechanical sysmtes in recent years, the trend of development of the flow rate sensor in the traditional industry and fluid mechanics research is high integrantion level, microminiaturization, high degree of accuracy and high reliability.
近年来,随着对微电子机械系统的深入研究和取得的进展,传统的工业和流体力学研究的流量传感器向高集成度,微型化,高精度,高可靠性方向发展,同时生命科学的发展大大促进了用于微流体,生物学、医学、卫生、食物等学科研究新型微型流量传感器的研究开发,微型流量传感器已成为MEMS的重要研究方向。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。