实验研究

The dissertation presents a mathematical modeling approach for the high-speed flexible linkage mechanisms equipped with bonded piezoelectric sensing/actuating elements employing a mixed variational approach with Hamilton's principle in conjunction with the finite element formulation. This model includes both the terms coupling the elastic and rigid-body motions of linkage mechanisms and the terms coupling the elastodynamics and piezoelectricity of the elements, incorporating their effects upon the mass and stiffness matrices which are in general non-symmetric.

本文以国家自然科学基金资助项目《弹性连杆机构有害振动的主、被动控制及混合控制研究》（资助号：59605001）和广东省自然科学基金项目《开链及闭链机构有害振动控制研究》（资助号：970381）为依托，对高速弹性连杆机构振动的主动控制中的建模、求解、控制律的选择、作动/传感元件的优化以及实验研究等几个关键问题进行了比较深入细致的研究，取得了一些具有重要理论意义和重大实际应用价值的成果。

The review is about research progress of etiological factors and pathogenesis,the clinical and experimental research of gouty arthritis.

从病因病机研究、临床研究、实验研究3个方面综述了痛风性关节炎的研究进展。

Based on the hydrodynamic theory of dense gas-solid flow and the kinetic theory of dense gases proposed by Chapman and Cowling, the kinetic theory of cohesive particles flow and constitutive equations of cohesive particles are established.

目前科学家们对粘附性颗粒的流态化研究主要集中于实验研究，数值模拟研究做的比较少，特别是对传统的双流体模型，如何进一步改进完善，以适应粘附性颗粒的气固两相流动的研究，成为当务之急。

In this thesis, by the means of calefactive oxidation test of coal samples, the characteristics of different samples spontaneous combustion are analyzed; the infrared spectrum is assimilated to review the rule that coal function corps change in the process of coal low-temperature oxidation ; by the means of thermal analysis by differential scanning calorimeter, thermogravimeter, the kinetic function of coal low-temperature oxidation in spontaneous combustion process are analyzed , depend on the device, the mathematical model of coal spontaneous combustion is developed, the model are dealt with, Finally, the temperature field and the velocity field with velocity of the entry flow is got.

论文通过煤的低温氧化和自燃过程，实验研究了煤的低温氧化气体产物特征和变化规律，研究得出了煤的低温氧化过程中气体生成量与氧气消耗量与煤温之间的指数关系式；在煤的低温自热氧化过程中，对煤的官能团等化学结构的变化研究，揭示了煤炭低温自热氧化化学基团变化规律；采用非等温TG和DSC法研究了烟煤低温氧化动力学，得出了煤低温氧化分布活化能及煤低温氧化机理函数的变化规律；建立了煤低温氧化自热数学模型，并对该模型进行数值解算，可得煤样的温度场与速度场随入口风量变化情况。

Base on the initial study of the research project of"Study on treating hypertension of the aged with the treatment of tonifying the kidney qi", discuss the functional mechanism of the treatment of tonifying the kidney qi from 3 aspects, such as study on theory, documental commentation and experimentation.

在&补益肾气法治疗老年人高血压的研究&课题前期研究基础上，从理论研究、文献评述、实验研究(血压、主动脉胶原分布、含量的变化，NO、ET-1)三个方面探讨补益肾气法的作用机制。

Documental study after liberation can be classified in three sections:theoretical study,clinical study and laboratory study.

建国以后文献的研究，分理论研究、临床研究和实验研究三部分进行了归纳整理。

Documental study after liberation can be classified in three sections:theoretical study,clinical study and laboratorystudy.

建国以后文献的研究，分理论研究、临床研究和实验研究三部分进行了归纳整理。

According to progress of lately Systematic Biology study and combine model Traditional Chinese Medicine theory,we can translate Traditional Chinese Medicine entrail into five function model of organism inner environment .

摘 要：在以往中医血液指纹图谱研究的基础上，根据系统生物学最近的研究进展，结合中医模型理论方法，可以把中医藏象解释为机体内环境的五个功能模块，目前在中医系统生物学研究中模块应该优先于网络分析，并从理论、网络生物学实验研究和复杂系统研究上给予证明。

Posterolateral Lumbar Intertransverse Process Spinal Arthrodesis With Composites Composed Of Recombinant Human Bone Morphogenetic Protein 2 And Allograft Or Xenograft; Or With Composite Consisted Of HA And Xenograft in rabbitsBackground: So far spine arthrodesis remains to be used in spine surgery.

中文题名rhBMP-2、HA及其复合物在兔腰椎后外侧融合的实验研究副题名外文题名论文作者杨发军导师马忠泰教授学科专业外科学研究领域\研究方向临床技能训练与研究学位级别博士学位授予单位北京大学学位授予日期2001 论文页码总数92页关键词骨形态发生蛋白异体骨移植脊柱融合异种骨移植馆藏号BSLW /2001 /R687 /42 背景：目前，脊柱融合手术被广泛地应用于脊柱外科领域，自体髂骨仍是被最常用的骨移植物，但是其有5％-35％的不融合率。

Environmental chemical action of Cadmium in topsoil in Chengdu has been studied in this paper, including the Cadmium pollution survey of topsoil in Chengdu, the chemical speciation research of Cadmium in topsoil, the research of correlation between soil character and chemical speciation of Cadmium and eluviating experiment research.

本文针对成都市表生土壤中镉的环境化学行为进行研究，包括以下研究内容：成都市表生土壤的镉污染状况调查；表生土壤中镉的化学形态研究；土壤性状同土壤镉赋存形态的关系研究；土壤淋滤实验研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。