实验

Of the late two years,in order to find out a kind of dental implant ing materialwhich would possess both the very good properties of biological compatibility,the chemical compatibility and the mechanical compatibility,an animal experi-mental preselection was accomplished by our research team with six kinds of im-planting material chosen from four main sorts of oral implant ing material(met-al,ceramic,high polymer and carbon),As the result of the Preselection,thematerial……bio-ceramic was chosen by ...

为了寻求生物相容性、化学相容性和力学相容性均好的种植材料，在口腔四大类种植材料(金属、陶瓷、碳素、高分子)中，选用6种材料作了动物实验预选。根据预选结果，选定以生物陶瓷为主攻方向，从而研制成功锆磷灰石陶瓷，以之进行了理化性能、生物学性能、及动物实验考查，合平种植要求。并以考查结果与钛合金、多晶氧化铝、单晶氧化铝、钛合金喷涂氧化铝、低温各向同性碳、聚砜种植作了比较，主要性能均较其它几种比较材料为优。经临床初试，锆磷灰石陶瓷的种植效果也较好，其界面为骨性结合。

Traditional teaching system and management mode of medical education does not favor this objective, which necessitates the construction of a new system of experimental teaching and management, as well as the establishment of a medical experimental teaching center.

传统的医学实践教学体系和管理模式不利于医学教育最终目标的完成，必须通过建立新的实验教学与管理体系和医学实验教学中心管理模式才能实现。

According to the professional characteristics of economy and management and social demands of economy and management talents this article put for ward a new experimental teaching system including four modules based on ability cultivation.

针对经管类专业教学特点和社会对经管类人才要求，提出了一种基于能力培养的4模块的经管类新型实验教学体系结构，并对体系结构内容进行了讨论，总结了新型实验教学体系特色。

Firstly, because the triangle constrained matching propagation begins with the initial corresponding triangulations formed by a few seed points in the stereo pairs, this dissertation studies the affects of different numbers and different distributions of seed points on the image matching results through experimental analysis, and proposes a seed point selection strategy for different image texture conditions, an automatic selection algorithm is also designed that gives good distribution quality for a defined number of seed points.

首先，针对匹配传播过程中的种子点选取问题，通过实验分析研究了不同数量与分布的种子点所构成的初始三角网对匹配结果的影响，进而提出了不同影像条件下的种子点选取策略和一种自动提取一定数量、满足一定分布均匀度的种子点自动选取算法；其次，研究了海量数据情况下同名三角网的快速构建、数据组织存储与局部动态更新的方法；在此基础上，本文提出了随机传播、基于三角形拓扑关系的邻近传播和顾及纹理特征的自适应传播等三种传播策略，分别介绍了其详细的实现算法，并通过实验分析对这几种传播策略进行了比较，实验结果证明自适应传播方法在匹配的可靠性上最优。

The main characters in Lightman's stories are the theoretical physicists Albert Einstein, Edward Teller, and Richard Feynman, and the observational astronomer Vera Rubin. Not only is Rutherford absent, but almost all experimental scientists are absent too. The only experimenter who makes an appearance on Lightman's stage is Joseph Weber, a brilliant and tragic figure whose experiments turned out to be wrong. The mainstream experimenters who explored the universe of particles and fields, continuing to play Rutherford's game, taking the watch to pieces to see how it works, do not appear at all.

莱特曼故事中的主角是理论物理学家阿尔伯特·爱因斯坦、爱德华·泰勒、理查德·费曼以及天文观测家维拉·鲁宾，不单卢瑟福缺席了，几乎所有实验科学家都缺席了，莱特曼书中唯一露面的实验科学家是约瑟夫·韦伯，一位才华横溢但悲剧性的角色，他的试验被证明是错的，沿着卢瑟福把物体拆散来研究这一方向对粒子和场世界进行探索的实验科学家的主流根本没有露面。

Temporal target waves are first reproduced in numerical simulation, and irregular continuous target waves and spatiotemporal turbulences are observed by elevating the magnitude of the local perturbation which pioneers new directions for the experimental research of glycolytic reactions.

而本文在模拟中严格仿照实验条件，采用酵母抽提物实验中对酵解波的研究方法，第一次在数值模拟中重现了实验现象——暂态靶形波，并通过增加局域扰动的幅度观察到了非规则的连续靶形波和时空湍流，为酵解。。。

This paper introduces the studies of the ultra-short Thomson scattering X-ray source at the accelerator laboratory of Tsinghua University in recent years. Properties such as the photon yield,the pulse length and time jitter of the produced photon pulse were predicted theoretically from the parameters of the electron bunch and the laser pulse,and the scattering angle. Preliminary experiments were successfully carried out with a 16 MeV backward-traveling-wave accelerator and the ns-Q switched laser provided by China Academy of Engineering Physics. This paper also introduces the 1.6-cell electron gun that was fabricated on site and the experiment with high RF power including the measurement of the electron bunche parameters. Based on these,we have designed an X-ray source,which is now under construction.

介绍了清华大学加速器实验室近年来关于汤姆逊散射超短X射线源的研究工作；研究了在任意散射角度下电子束参数和激光束参数对散射光子参数的影响，给出了散射光子的参数如光子产额、脉冲长度、时间抖动等与电子束参数、激光束参数和散射角度的关系；利用实验室已有的16 MeV反波行波加速器与中国工程物理研究院激光聚变研究中心提供的ns调Q激光搭建了汤姆逊散射初步实验平台并开展了实验研究；加工了1.6-cell光阴极微波电子枪，搭建了高功率实验平台，对产生的电子束参数进行了初步测量；对汤姆逊散射超短X射线源进行了设计并开展了相关的平台建设工作，对产生的X射线脉冲参数进行了模拟。

This study focused on the absorption of vapor into aqueous LiBr and the absorption of ammonia gas into aqueous ammonia.

本项目以溴化锂溶液和氨水溶液作为研究重点，主要内容包括：对添加剂作用下的溴化锂溶液和氨水溶液表面张力进行了实验研究，发现添加剂对两种溶液表面张力的影响呈现出不同的性质；利用表面吸附动力学原理，对溶液的表面张力及动态表面张力进行了理论分析；利用激光阴影法对溴化锂溶液静池吸收过程中马拉戈尼对流的形成进行了可视化研究，并进而发现蒸汽添加剂比液体添加剂对吸收具有更好的强化效果；利用实验方法对溴化锂溶液垂直降膜吸收进行了研究，并从其基本方程出发得出了影响添加剂强化效果的主要因素；同时，也对添加剂对氨水鼓泡吸收的影响进行了实验研究；最后，对添加剂的强化机理进行了分析，即对于溴化锂溶液来说，添加剂对溶液吸收的影响主要体现在对吸收界面吸附特性的影响上，无论是气体添加剂还是液体添加剂，都有可能对溴化锂溶液吸收起到强化作用；对于氨水溶液而言，添加剂的影响主要还是体现在&盐析&作用上，当氨水浓度较低时，添加剂有可能对吸收起到强化作用。

Many of the experiments were carried out with animals (in the famous'Skinner Box') and the first difficulty concerns the transferability offindings with animals to complex human behaviour, of which language isa prime example.

由于许多实验都是在动物身上进行的（例如著名的斯金纳箱实验），最先遇到的问题就是如何将从动物身上获得的实验结果转换到复杂的以语言为范例的人类行为上。

In order to disclosure the reason why the electrocatalysis activeness and selectivity droped after being used several hundred hours continuously, the x-ray diffraction, scanning electron microscopy and energy dispersive spectroscope have been used to characterize the surface condition variations of Monel metal. The results indicated: Monel metal belongs to the Cu-Ni alloy around the electrolysis experiment.And after being used for 600hr, the surface layer element composition and geometry distribution of the alloy changed, namely in the alloy the Cu element /which superficial free enthalpy was smaller,"concentrated" to the alloy surface,and formed one kind of marble structure microcrystallite.Thus the electrode surface becamed rough a

为了揭示蒙乃尔合金阴极在连续使用数百个小时后电催化活性剂选择性下降的原因，采用X射线衍射仪、电子扫描电镜和电子能谱分析仪对电解实验所用的蒙乃尔阴极材料在电解实验前后的表面状态进行了表征，结果表明：所使用的蒙乃尔合金阴极材料在电解实验前后均属于Cu-Ni合金，使用600hr后，由于表面层元素组成和几何排布发生了变化，即合金中表面自由焓较小的Cu元素向合金表面&富集&，形成一种大理石结构的微晶，表面粗糙、不均一，这是造成其对硝基苯电还原的催化活性及选择性随着使用时间延长而逐渐下降的主要原因，同时也为此类电极的修饰改进提供了方向。

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