自然科学研究

The research of the dissertation is supported by National Natural Science Foundation of China No.

本文的研究工作是国家自然科学基金资助项目（19872017，10032030）和国家重点基础研究专项经费（G1999032805）资助计划的一部分。

The project is supported by the National Natural Science Foundation of China.

论文的研究是基于国家自然科学基金项目（面向并行设计的广义特征表达及其映射的研究）进行的。

Some basic studies supported by Chinese Natural Science Foundation were also mentioned. Numerous valuable data for chemotaxonomy of pine species were obtained through systematic studies on chemical composition of oleoresin of nearly 60 pine species.

最后提到了由国家自然科学基金多次资助的基础研究工作，通过对近60个松树树种的松脂化学成分的系统研究，得到了松树化学分类的许多有用证据。

It is revealed by the saturated single liquid seepage experiment performed by FDES-641 triaxial system that the movement of low speed seepage in low permeability media departs from the law of Darcy, meanwhile the curve of seepage flow would not pass through the origin of coordinates.

本论文作为国家自然科学基金资助项目"低渗透弱胶结岩石非线性渗流机理研究"的一个组成部分，通过对低渗透岩石系列渗流实验结果进行深入研讨并结合数值分析的方法，对该课题开展了研究。

It is a innovation in concept and construction of mobile robot. The metamorphic and mobile robot with eight joints and twelve degrees is symmetry mechanism and a pedrail mechanics connects with the box through a arm.

变形移动机器人的概念，是山东科技大学机器人研究中心在成功地完成了国家863项目"喷浆机器人"和国家自然科学基金"四周履带式蛇形机器人"的研究的基础上提出的，是一种对"移动机器人"的概念创新和结构创新。

ABSTRACT The concept of metamorphic and mobile robot is based on the successful study of NATION 863 ITEM which is shotcrete scrobot and NATION NATURE SCIENCE FUND that is the snake-robot with pedrail around it in the robot center of Shandong Science University.

变形移动机器人的概念，是山东科技大学机器人研究中心在成功地完成了国家863项目"喷浆机器人"和国家自然科学基金"四周履带式蛇形机器人"的研究的基础上提出的，是一种对"移动机器人"的概念创新和结构创新。

Natural science is gradually developed, and so does philately.

自然科学的研究和发展是不断向前推进的，邮学研究亦不例外。

Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.

本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究"，主要进行了以下研究工作： 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析，得到了不同锈蚀率下，锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律； 2通过对应变数据的分析，论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论，并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下，跨中截面处钢筋应变和钢筋处混凝土应变的关系，通过构造新的几何关系，得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式，既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式，并通过试验数据加以验证； 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响，结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系，分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式；既而推导出曲率延性系数的计算模型。

An extraordinary undergraduate at Florida State University, Raff, despite his scientific promise, opts for Harvard Law School, believing that the environmental fight must be waged in the courtroom as well as the lab.

后来几年后，雷夫在佛罗里达大学成为表现优异的大学生，尽管年轻时许下研究自然科学的承诺，但他深信在法庭中争取环境保护比在实验室中做研究来的更实际，因此后来雷夫选择进入哈佛法律学院就读。

He has implemented over 10 projects from National 863 Hi-tech Project and 4 projects from ministry and province. He ever presided over many large projects, such as "National 863/CIMS Key Application and Example Project of Harbin Electrical Machine Factory","National 863/CIMS Key Application and Example Project of Qiqihaer the Second Machine Tool Factory" and "Reformable ERP System Suitable to the Chinese State Circumstance", etc. He is now undertaking National Science and Technology Key Project, National Natural Science Foundation Project and Province Science and Technology Key project.

先后完成国家863计划重点项目及研究项目10多项、省部委项目4项，曾主持过《哈尔滨电机厂国家863/CIMS重点应用示范工程》、《齐齐哈尔第二机床厂国家863/CIMS应用示范工程》、《适合中国国情的可重构ERP系统》等大型项目，目前研究课题有国家十五863计划重点课题，国家十五科技攻关计划重点课题、国家自然科学基金课题和省科技攻关课题等。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。