试验设计

Thirty crossbred beef steers (Limousin + local yellow ), aged eight months to twelve months, were fed in the crib and randomized complete block design and differentiated weight by block. The cattle were divided into six nutrition pattern groups.

摘 要：本试验选用8～12月龄的利木赞杂交牛30头，栓系舍饲，采用随机完全区组设计将试验牛分成6个营养模式组，进行300天的育肥后，对所有试验牛进行屠宰，测定其胴体质量和肉品品质。

The analytical method used in this paper is justified by comparing with country norm form formula results , the result of Franco et al and the result of Yuxiu Wei et al.

综合各因素的影响，应用最小二乘法进行曲线拟合，得到了斜向波和多向波作用于直立堤上的平均越浪量的计算公式、单波最大越浪量的计算公式、单波最大越浪量和平均越浪量的关系式、越波率计算公式以及单波越浪量的统计分布形式，并通过与按照我国规范中斜坡堤越浪量计算公式形式拟合得到的直立堤越浪量公式和俞聿修，魏德彬的试验结果、Franco C，Franco L试验结果的比较来验证本文所采用的分析方法的合理性、试验结果的可靠性，以便于理论研究和工程设计参考应用。

The breaking of pintle in experiment was finally solved by changing the material and improving the pintle configuration. The main reason of slowly climbing of pressure was found out by analyzing and some validating experiments. A pintle motor test with high combustion temperature propellant was carried also.

对调节比、自由容积和调节方向的影响进行了研究；对试验中出现的喉栓结构破坏的问题，通过改进喉栓结构设计，更换材料最终获得了满意的效果；对推力调节响应特性进行了研究，通过理论分析和验证试验找出了导致调节缓慢的主要原因；还进行高燃温的探索试验。

Hardware of machine vision system is constructed, experiment plan of how to obtain crop and weed images in natural lighting is designed based on the experiment environment.

介绍了机器视觉系统的硬件组成，构建本研究试验所需的机器视觉硬件系统，并根据试验环境和试验要求设计了图像采集的实验方案，在室外自然光照条件下获取作物与杂草图像。

Based on the load transmission mechanism of space truss, and referenced theanalysis of test materials, a formula for calculating the bearing capacity of reinforcedconcrete compression strut is introduced. By using the theory of plastic hinge-line, anupper limit solution of bent bearing capacity for four-pile cap, which coincidesprecisely with the practical measurements, is obtained. By utilizing the reaction ofthe soil under cap and by basing on the method of plastic ultimate analysis, an upperlimit solution of punching shear bearing capacity for pile cap is acquired, which. coincides precisely with the practical measurements, and the formula is similar to thecode.A brief discuss on cooperative work of strip beam of foundation and single rankof piles is made. Separately considering the pile-cap and the pile-group, thencoupling their matrix of rigidity, the inner force of pile-cap is solved by the numericalmethod under some reasonable supposition. In comparison with other method, thecalculating results are exact, reliable and convenient in using. The method provides apowerful tQol fOr further analysis and research on this kind of structure.

本文以空间桁架传力机理为基础，结合试验资料分析，推导了钢筋混凝土等边三桩承台受冲切承载力计算公式；根据塑性铰线理论，导得了与试验结果吻合良好的四桩承台受弯承载力的上限解；利用承台底土反力分布，根据塑性极限分析方法，导得了桩基承台受冲切承载力的上限解，在此基础上，通过简化假定，得到与规范公式相类似的承台受冲切承载力实用公式，该公式能方便考虑台底土反力作用，与试验结果的吻合程度比规范公式好；简要讨论了桩基条形承台梁与单排桩的协同工作分析；在一些合理假定的基础上，将承台与群桩分开考虑，分别得到其刚度矩阵后进行耦合，通过数值方法求解承台内力，算例表明，该方法结果准确，使用方便，为该类结构的进一步分析研究及工程设计提供了强有力的工具。

The Company's advanced technology and equipment, detection means complete, currently has a large IF Elbow push system machine, large R bender, metal links extrusion hydraulic press, stainless steel elbow hydraulic extrusion machine, 2000T hydraulic press table big job and 1000T, 500T, etc. Four-column hydraulic press and high-power resistance furnace heat treatment, shot blasting machine, such as noisy jet pipe production equipment, is equipped with a universal tensile testing machine, chemical analysis instruments, non-destructive testing equipment, spark photoelectric read the whole spectrum, such as test equipment and test equipment , the Company has a large number of pipe fittings for many years engaged in the manufacture of engineering and technical personnel and skilled workers, with process design, manufacturing, welding, heat treatment, chemical cleaning, and product inspection and testing of the ability to undertake a variety of bend of high, medium , low pressure and high temperature and low-temperature pipe fittings manufacturing business.

本公司工艺装备先进，检测手段齐全，目前拥有大型中频弯头推制机、大R弯管机、金属三通挤压液压机、不锈钢弯头挤压液压机、2000T大工作台面液压机及1000T、500T等四柱液压机和大功率热处理电阻炉、喷吵抛丸机械等管件生产专用设备，配备了万能材料拉力试验机、化学分析仪器、无损检测仪器、火花光电全读光谱仪器等检验和试验设备，本公司有一大批多年从事管件制造的工程技术人员和技术工人，具有工艺设计、制造、焊接、热处理、化学清洗及产品检验和试验的能力，能承接各种规格的弯头的高、中、低压及中高温和低温管件制造业务。

In this paper, the following experimental and theoretical investigations have been carried out: friction materical behavior tests, structure model experiments under low frequency cyclic and reversed loading, structure model dynamic experiments on shaking talbe, researches on dynamic analysis method and engineering design method for braced frame structure with friction control.

对二级摩擦控制支撑框架结构进行了摩擦材料的试验研究、低周反复荷载下结构模型的试验研究、振动台的动力试验研究、结构动力分析方法的研究以及摩擦控制支撑框架设计方法的研究。

Commence from analyzed and tested raw materials quality effect on concreteresistance of seawater chlorion erosion, components in concrete raw materials,especially the effect of multiplication of high-performance water reducer andactive addition, were compared and selected. By designed and optimized mixratio, the components of testing concrete were determined, series test ofphysical mechanics performance and durability for high-performance concretewere conducted, and prediction model of durable years for high-performanceconcrete in harbour engineering was discussed.

从分析、试验原材料品质对混凝土抗海水氯离子浸蚀的影响笔试手，比选了混凝土原材料组分，尤其是高效减水剂和活性混合料复合的效应，通过配合比设计优化，确定了试验混凝土的组成，进行了海工高性能混凝土物理力学性能、耐久性系列试验，探讨了海工高性能混凝土耐久性使用年限的预测模式。

The antifatigue function of more than forty kinds of insect,fungi,bacteria and algae was studied and sifted first in this study by detecting swimming endurance and biochemical indexes. Then,in order to choose the better ones from the compoud additives formulas composed of L-carnitine, taurine, octacosanol,vitaminE and insectA ,a cross design experiment was done. InsectA was discovered in the first experiment that it greatly improved the antifatigue function in mice. Finally, the acute toxicities, thirty-day feeding effects and the mechanisms of No. 1 antifatigue compoud additives(No.1ACF) were studied.

本研究首先通过小鼠游泳耐力试验和血液生化指标的测定对40余种昆虫、菌藻的抗疲劳作用进行了筛选；在此基础上，应用正交设计方法对以L-肉碱、二十八醇、牛磺酸和本实验筛选出的抗疲劳功效较好的昆虫A为原料的配方进行了抗疲劳作用筛选，并对筛选出的最佳配方，即抗疲劳复方添加剂1号配方进行了小鼠急性经口毒性试验、30天喂养试验和抗疲劳作用机理研究。

A 8-week growth experiment was conducted to estimate the quantitative requirement of tourmaline for GIFT strain of Nile tilapia [initial body weight(15.90±0.1) g] by feeding five isonitrogenous(33%) and isoenergetic(17.2 MJ/kg) diets containing five levels of tourmaline at 0, 0.5％, 1%, 2% and 3%, respectively.

试验以（15.90±0.1） g的吉富罗非鱼为试验对象，在等氮（33%）等能（17.2 MJ/kg）的基础上，在其日粮中分别添加0、0.5％、1％、2％和3％的固相负离子粉，在循环水养殖系统中进行8周的生长试验。每种饲料设计3个重复，每桶放鱼30尾。

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