试验

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。

Of the test sample should be the standard test in the normal atmospheric pressure for installation and test equipment as installed in the Central.

试验样品应该在正常试验的标准大气压下进行安装，并且尽可能安装在试验设备中央。

When the researches study the tribology systems hi the past time, most of then: results are carried out by a mass of tests, this method can get well results in a certain extent, but it is complex, strenuosity and time waste, the results are difficult to transfer.

长期以来，研究人员对摩擦学系统进行研究时，几乎都是通过做大量的试验来获得系统特性曲线，这种方法能在一定程度上获得良好的结果，但是试验本身很复杂，耗时耗力，而且试验的结果很难移植。

In this study, 12 stylo genotypes were surveyed under field conditions with or without P application for P efficient screening, and then sand and nutrient solution culture experiments were subsequently conducted to further demonstrate possible physiological mechanisms of stylo in adaptation to low-P acid soils.

本试验选用十二种不同基因型柱花草作为研究对象，通过田间试验对供试材料进行磷效率初步筛选，并在此基础上进行随后的砂培和水培试验，对不同基因型柱花草适应酸性低磷红壤的机制进行了初步的探讨。

Traditional irrigation A2. subirrigation B1, subirrigation B2 were conducted.

试验包括地面灌溉、浸润灌溉两种供水方式、分别进行两种水分处理共4组冬小麦土柱栽培试验，每个试验同时设置两个重复。

Test results show that the test plan can achieve the purpose of submersible pump enhancement testing.

试验结果表明，所制定的强化试验方案能达到对潜水电泵进行强化试验的目的。

The paper analyzed the intoxication function. Two concentrations of sulfaquinoxaline at 0.2% and 0.5% were given to Hyline brown -egg chicks at the age of 7 days for duration of 14 days. The experiment has established the model of sulfaquinoxaline chick intoxication experiment. The chicks under the experiment have been vaccinated with Newcastle disease according to normal immune procedure.

方法］以0.2%、0.5% 2个浓度剂量的复方磺胺喹恶啉钠分别给7日龄海兰褐蛋雏鸡连续饮水14d，建立磺胺喹恶啉钠雏鸡人工中毒试验模型，试验鸡只按正常免疫程序免疫新城疫，观察鸡群的临床表现，分别在用药后第7天和第14天分别剖杀试验雏鸡，称量体重，测量免疫器官指数和新城疫抗体水平，观察剖检病变及病理组织学变化，评价应用磺胺喹恶啉钠对雏鸡的影响。

Because the portal frame is also used in the rig for bogie fatigue strength testing, in which the imposed load is harmonic, the modal analysis is necessary. The fundamental vibration mode shapes and corresponding frequencies are calculated to validating that the natural frequencies of the structure have enough difference comparing to the load frequency, so sympathetic vibration can be avoided.

由于龙门架还要在疲劳试验台中用来进行转向架的疲劳试验，因此对龙门架进行了模态分析，计算龙门架结构的固有频率和振型，确保龙门架的固有频率远离转向架疲劳试验的加载频率，避免在试验中发生共振。

This paper describes a demarcation and decoupling technology of helicopter bearingless tail rotor flexible beam,this technology can be used to solve the problem of flapping bending moment and lag bending moment coupling that encountered in bearingless flexible beam fatigue test,it also can be used to separate each test load component on the section effectively and to reduce the test error.

本文介绍了一种直升机无轴承尾桨柔性梁标定与解耦技术，该技术能有效地解决无轴承尾桨柔性梁在试验中挥舞弯矩与摆振弯矩的耦合问题，并能有效分离截面上各分项试验载荷，减少其试验误差。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新