现场验证的

Results revealed that the large side insulation of the stator bar in slot is available for ultrasonic pulse-echo testing; Coupling transducer on the surface of a practical stator bar could minimize the influence on the measurements of velocity, contributing no destructivity of the ultrasonic testing for stator insulation; The simultaneity of same velocity and higher attenuation can be used to detect insulation delamination from conductors; Compared with the wide sides of the bars in slot, the short sides of the bars near the exit from slot and the end bars had a same velocity and a higher attenuation; The velocity might be exactly measured on the shot sides of the bars near the exit from slot and the end bars, while the attenuation might not, which were examined though filed tests; V min decreased greatly and V av decreased slightly with the service time of the bars.

在实验室对线棒多种结构处的主绝缘和不同运行年数(未老化、16、18 和23年)线棒的主绝缘进行了低频超声反射法检测试验，并进行了现场试验，发现(参见 Hao et al， IEEE DEI， to be published)，槽部线棒的宽面绝缘不受换位绝缘的影响，比窄面绝缘更适合超声测量；线棒表面平滑的半导体层减小了耦合剂对超声测量的影响，实现了无损性；波速不变而声衰减减小可以检测线棒出现绝缘与导体脱壳缺陷；出槽口和端部线棒的窄面绝缘与槽部线棒的宽面绝缘相比，声衰减大而波速一致；现场试验验证了波速不受绝缘结构和现场测试条件的影响，而声衰减受以上因素影响很大(参见 Hao et al，中国电机工程学报， Vol.23 No.4)； V min 随运行年数明显减小， V av 随运行年数慢慢越小。

Moreover, the dew point of water vapor and recovery of methane meet the requirement of application.

现场试验结果与模拟计算结果具有一致性，同时模拟计算的结论也在试验中得到验证。

Rapid dipstick tests have been validated for field use to quickly screen for Y. pestis antigen in patients.

快速纤维素试纸试验已验证供现场使用，以迅速地筛查患者的鼠疫杆菌抗原。

A rational method of disposal for a the dowel bar is proposed through test-in-place and finite element analysis.

提出了传力杆的合理布置方式，并通过现场试验和数值模拟进行了分析和验证。

Taking the items of"nominal frequency" and" adjustment coefficient " as a specification, this paper provides a practical calculation method for adjusting parameters of power frequency series resonance test equipment, which has been verified both in laboratory and on site.

引入"名义频率"和"调整系数"等参数作为量化依据，提出了一种现场调整工频串联谐振试验装置参数配合的工程计算方法，并已通过了实验室试验及现场参数配合示例的验证。

The major content of this thesis are as follows:1 Performed FEM analysis before strengthening, and to find out the reason for the cracking and present a strengthening scheme;2 Performed nonlinear FEM analysis before and after strengthening, and to get the varying rule of the relative displacement between the on-site cast concrete side wall and that between the precast concrete arch and the floor, as well as the stress distribution of the gallery;3 Performed on-site observation experiments on the 7~th gallery, and to get the varying rule of the relative displacement between the on-site cast concrete side wall, as well as that between the precast concrete arch and the floor.4 The results of the computation were compared with those of experiments, which verified the effect of the strengthening.

本文的主要工作有： 1 对加固之前的廊道结构进行有限元计算，找出廊道底板开裂的原因，提出加固方案； 2 对加固前后廊道结构进行非线性有限元计算，得到加固前后廊道两现浇边墙相对位移、拱顶与底板相对位移随水库水位变化的规律和廊道结构的应力分布情况； 3 进行廊道加固前后现场观测试验，得到廊道两现浇边墙相对位移以及拱顶与底板相对位移随水库水位变化的规律； 4 对比分析加固前后现场观测试验与非线性有限元计算所得结果，论证加固方案的合理性，验证加固效果。

By means of analyzing the thermodynamic process within reheating turbine and combining with the on-site test results, traditional steam turbine model for power grid stability calculation is improved, and a brand new concept of natural power overshooting coefficient of high-pressure cylinder is proposed.

华北电力调度通信中心，北京市宣武区 100051通过对再热凝汽式汽轮机热力过程的原理分析，结合现场试验的验证，改进了传统的电力系统稳定计算的汽轮机模型，创新性地提出了高压缸功率自然过调系数的概念。

In addition, based on the theory calculation and analysis, the fact is verified by on-site load testing of ZhongXian Yangtze River Bridge, that the bridge decks work with Steel Tube truss Stiffening girder.

在理论分析的基础上，通过现场荷载试验对理论计算结果进行了验证，验证结果证明了桥面系参与工作的事实。

The main contents of the present paper include: 1、The mechanism of fouling accumulation and the effects of fouling and slagging on boiler performance are analyzed. The model of fouling increasing is developed on the basis of sediment rate and denudation rate. The fouling monitoring models for boiler furnace and convective sections based on heat balance, the ones for air heater based on converted pressure difference are given. The implement results show that these models can reveal the cleanliness of boiler heat transfer surface. 2、The disadvantages of the model for boiler furnace fouling and slagging monitoring based on heat balance are discussed, and the calculation of radiant heat flux is considered as the primary difficulty.

主要包括以下内容： 1、分析了锅炉受热面污染形成的机理，从灰污的沉积率和剥蚀率角度出发，推导了受热面灰污增长的基本模型，分析了灰污热阻随积灰时间和烟气流速变化的规律，并通过大量现场试验，得到了沉积常数与时间常数的取值范围； 2、针对炉膛、对流受热面和空气预热器等不同受热面的传热特性，分别建立了基于热平衡和折算压差的污染在线监测模型，经实践验证，其监测结果能够满足现场工程应用的精度要求； 3、分析了基于热平衡原理的辐射、半辐射污染监测模型的不足之处，指出了机理模型因对炉内辐射换热量计算不准确，导致对以辐射换热为主的炉膛和以半辐射半对流的屏式过热器监测效果不够理想。

Taking the items of"nominal frequency" and" adjustment coefficient " as a specification, this paper provides a practical calculation method for adjusting parameters of power frequency series resonance test equipment, which has been verified both in laboratory and on site.

引入&名义频率&和&调整系数&等参数作为量化依据，提出了一种现场调整工频串联谐振试验装置参数配合的工程计算方法，并已通过了实验室试验及现场参数配合示例的验证。

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