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Started the research of gas-turbine HRSG in the 1970s, the company has developed horizontal and vertical type HRSG, and has the ability to design and fabricate 23~400MW HRSG for gas-steam combined cycle gas-turbine. Such HRSGs can be single-pressure, double-pressure, or triple-pressure, and the circulation can be natural type or forced type. By the end of May 2007, the company has sold 144 sets of gas-turbine HRSG, with the domestic market share of more than 80%.

公司从上世纪七十年代后期开始研究、开发燃气轮机余热锅炉，坚持引进消化吸收和自主开发并重，至今已开发有卧式和立式两种技术、可设计制造单套装机容量23－400MW燃气蒸汽联合循环的各类单压/双压/三压自然循环、强制循环燃气轮机余热锅炉，截止07年5月公司共销售、生产燃汽轮机余热锅炉144套，国内市场占有率达80%以上。

In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。

Based on the first law of thermodynamics and the law of mass conservation, a thermodynamic model of the back-pressure cavity has been developed by considering influence by back pressure cavity, compression chamber and oil supply system.

本文在热力学第一定律及质量守恒定律的基础上，建立了背压腔的热力模型，模型详细考虑了背压腔与工作容积、压缩机内油路之间的联系，并通过他们之间的联系给出了背压腔压力的计算方法。

It is widely concerned in fatigue of concrete structures. In this paper, concrete triaxial compression fatigue experiments and tension-compression fatigue experiments with constant confinements in two lateral directions have been carried out using a self-modified loading apparatus. Based on the analysis of the test data, the quantitative principles of concrete fatigue deformation and the calculation method of fatigue strength are determined.

混凝土结构的疲劳是一个广为关注的问题，本文针对这一问题结合国家自然科学基金项目——混凝土多轴变幅疲劳破坏准则(50078010)的研究，利用自制的试验加载装置完成了两向定侧压约束下混凝土三轴受压、三轴拉-压等幅和变幅疲劳试验，对试验结果进行了分析。

In this study,we took a measurement of sound pressure distribution, sound field variability, and effects of frequency shift on sound pressure levels at reference points of pure tone in the diffuse sound field.

本文通过对纯音声压分布、声场变异以及频率漂移对参考点声压级影响的研究发现，扩散场中纯音声压分布的均匀性虽不如啭音，但在某些范围其能量仍可充分扩散，这些区域声场测试结果受受试者头位改变和／或频率漂移影响轻微。对20名重度感音神经性耳聋患者的测试结果证实了上述结论。

PG Series High Speed Tablet Press is rotary continuous pressing tablet machines, which are in accordance with GMP standard.

PG系列高速压片机是旋转式连续压片机，符合GMP标准，能压制圆形片、刻字片和异型片，适用于制药、食品、化工等行业的高效、精密压片。

In this paper, test research have been performed on the two important mechanical properties indicator compressive modulus of elasticity and shear modulus. Numerical simulation has been performed on the base of results of test under the situation uniform and uneven thickness of elastomer layer, which analyze internal stress distribution of the elastomeric bearing, as follows:(1) The traditional test methods of compressive modulus of elasticity test are rather cumbersome and take up experimentalists lots of time. This paper has improved the traditional test methods of compressive modulus of elasticity test, which has collected the holding-load time together to concentrate on holding load. The tests have been performed on different types of bearings, which results show that the results of the improved test method conform to the error range regulated by the standard and can effectively save time for the experimentalists, also eliminate the accumulative error.

本文主要对板式橡胶支座的抗压弹性模量、抗剪弹性模量两个重要力学性能指标进行试验研究，并在试验结果的基础上对均匀胶层厚度和不均匀胶层厚度两种情况进行数值模拟，分析橡胶支座内部应力分布规律，具体内容如下：(1)传统抗压弹性模量试验方法比较繁琐，占用试验人员大量时间，本文对传统抗压弹性模量试验方法进行了改进，将持荷时间集中起来进行集中持荷，通过对不同类型支座进行试验，试验结果表明该改进试验方法所得结果符合标准规定误差范围，为试验人员节省了大量时间，并且还消除了传统方法中的累计误差。

The article introduced the configuration,the work principle and the hydraulic system in the newfashioned power pressing-explosive machine and adopted programmable logic controller control the hydraulic system to accomplish the action of the power pressing-explosive machine.

介绍了新型压药机的结构及工作原理、新型压药机的液压系统，并采用可编程序控制器控制液压系统实现压药机的动作，取代了传统的继电器控制，提高了系统的可靠性和灵活性。

Second, this paper introduces the design of hardware of the automatic voltage regulator of the generating system. The frequency-domain model of the voltage regulation system is established. Simulation and analyses on the model are done. The paper gives detailed analyses of the motors exciting current by the experiment of the voltage regulation system for the first time.

然后设计了发电调压器的硬件电路，建立了调压系统的频域模型并进行了仿真分析，对发电系统作了较为全面的实验，首次详细分析了励磁电流的变化规律，分析了实验结果，提出了调压器的改进。

Subjects, wearing each of the 4 revisions together with anti-G suit,underwent 4.8 kPa PBG at +5.5 GZ and 6.4 kPa PBG at +6.0 GZ in the centrifuge.

测量的指标包括，抗荷服压、面罩压、胸部代偿压、呼吸频率、心率及主观评分。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。