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Four case histories of steam and gas turbine components degradation identified during operation and verified during overhaul are presented.

本文展示了四起在运行及鉴定期间通过审定的蒸汽涡轮机和气体涡轮机部件失灵的个案。

At last, the multi-slice model for the representation of skew is built, which can directly calculate the starting current and starting torque of energy-saving motor according to terminal voltage, the reliability of this method is verified by comparing the values between calculation and test.

最后论文建立了考虑转子斜槽结构的多截面有限元模型，以端电压为输入量，可直接计算出节能电机的起动电流和起动转矩，计算结果与实测数据的比较验证了该方法的可靠性。

The control algorithm prototype was built in the environment of Matlab/Simulink,and a hardwareintheloop platform was established. Using the platform, the control algorithm prototype was verified by testing. The results show that the algorithm can restrict the excessive slip or skid effectively and improve the traction performance,the brake ability and the steering stability of vehicles.

在Matlab/Simulink环境下建立了控制算法原型，并搭建了防滑控制系统硬件在环试验平台，通过硬件在环试验对控制算法原型进行的验证结果表明，算法能有效抑制车轮的过度滑转或滑移，提高车辆牵引性能、制动性能和操纵稳定性能。

The aim of this study was to determine whether vBMD or bone size was associated with x-ray verified fractures in men during growth.

本研究的目的是确定男性生长过程中vBMD或骨骼的大小是否与X射线确证的骨折相关。

In the fourth chapter, the gait programming problem for a six-legged robot to walk selfcontainedly from ground to wall was accessed. A strategy and an algorithm to realize that kind of transit gait were put forward, which was verified by computer graphics simulation.

第四章探讨了地壁两用六足机器人从地面到壁面实现过渡行走的步态规划问题，提出了一种行之有效的实现过渡步态的策略和算法，通过计算机图形仿真研究证实了它的可行性和有效性。

The method has been applied to single-wheel model and double-wheel model. Under different road conditions, the feasibility and reliability of the control method were verified in ABS application by computer simulation.

将这一控制策略用于单轮及双轮汽车模型，在不同路面状况下进行的计算机仿真验证了该控制方法在ABS应用中的可行性和有效性。

Firstly, a class of affine nonlinear systems are considered. The single-layered neural networks are used to approximate the nonlinear functions of the systems. Stable adaptive control algorithms are presented based on system states feedback and system output feedback respectively. The boundary of the tracking error is guaranteed. Then, by using the technique of input-output linearization, the stable adaptive control method for general nonlinear systems is proposed. Finally, the effectiveness of the proposed adaptive control algorithms are verified through the simulation researches for the control of robot manipulator.

首先考虑一类仿射非线性系统，利用单层神经网络去逼近系统的非线性函数，分别给出了基于系统状态反馈和输出反馈的稳定自适应控制算法，确保系统的跟踪误差有界；然后利用输入输出线性化方法，给出广义非线性系统的自适应控制方法；最后通过在机械手位置跟踪控制中的仿真研究，验证了所提方法的有效性。

The rationality of the total heat transfer in enelosures can be divided into two single wall's heat transfer has been further verified.

研究结果确认，近角区的换热由于水平挡板的影响明显减弱，并且进一步验证了封闭空间的换热可以分解为两个单壁换热的合理性。

Chirp scaling algorithm is considered more efficient and widely applicable when the bistatic SAR system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by Taylor expansion are so large that the algorithm could lose its precision.In such a case,an equivalent mono-static SAR range mode which has fewer errors than Taylor expansion with large squint angle is proposed to substitute the range history of bistatic SAR.Then bistatic SAR images with large squint angles are gotten by common Nonlinear CS algorithm.The effectivity of the method is verified by Matlab simulation.

在正侧视或小斜视情况下，CS算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性CS算法，实现了在大斜视角情况下的基于GPS反射信号的双基地SAR高精度成像，最后通过Matlab仿真进行了验证。

a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要：建立了基于gps的顺轨sar系统模型，通过将gps信号等效为chirp信号，研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下，cs算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性cs算法，实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像，最后通过matlab仿真进行了验证。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。