测量刚体位移的非接触式光电系统

首次提出用标定法测量刚体的线位移和角位移的方法，该方法具有结构简单，性能可靠，非接触性，集成化高，工业上易实现和价格便宜等优点。本文同时还采用了一个小功率激光器为光源，ＣＣＤ为光电转换器件。最后通过相关分析法和数据拟合技术等图象处理技术，提高了整套系统的分辨率。     

西安东门城墙的弹塑性有限元分析

西安东门城墙是我国的重点保护文物，对其研究意义重大．采用俞茂宏统一强度理论建立的弹塑性本构模型对其研究，得到了不同强度准则下的荷载系数位移曲线、塑性区分布、主应力迹线、弹塑性极限等结构特性．研究表明，不同的强度理论（如ＭｏｈｒＣｏｕｌｏｍｂ理论、广义双剪强度理论和ＤｒｕｃｋｅｒＰｒａｇｅｒ准则）对城墙结构分析有很大的影响．     

天然调味料──酵母抽提物的研究进展

着重论述了酵母抽提物的特性、在食品中的应用前景、制造方法、工业化生产中存在的问题及其解决方法，并对酵母抽提物的发展方向作一展望。     

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日本政府采取一整套行之有效的政策措施来促进天然气消费，这套政策措施是：以立法的形式促进天然气消费，大力发展燃气企业，支持与鼓励天然气发电，大力发展燃气空调，支持和资助天然气实用技术的开发，以各种方式会同各家公司建立某些机构促进日本天然气产业的发展，采取财政信贷措施支持天然气的进口。对我国的启示是：建立和完善与天然气相关约法律法规体系，成立一些中介机构，鼓励开拓天然气利用的新途径，采取优惠措施鼓励居民使用天然气，同时政府应积极参与和支持新技术的研究、开发、应用和推广。     

稀布阵综合脉冲孔径雷达旁瓣对消性能分析

定量分析了阵列孔径、干扰信号带宽、通道幅相误差以及Ａ／Ｄ变换器的量化噪声对大型稀布圆形阵列天线干扰对消效果的影响，介绍了稀布阵综合脉冲孔径雷达（ＳＩＡＲ）采用抽头延迟线以提高干扰对消性能的方法，并给出了数值计算与计算机模拟结果。     

Precipitation behavior of σ phase in fusion zone of dissimilar stainless steel welds during multi-pass GTAW process

The purpose of this study is to investigate the precipitation characteristics of σ phase in the fusion zone of stainless steel welds at various welding passes during a tungsten are welding (GTAW) process. The morphology, quantity, and chemical composition of the δ-ferrite and σ phase were analyzed using optical microscopy (OM), a ferritscope (FS), a X-ray diffractometer (XRD), scanning electron microscopy (SEM), an electron probe micro-analyzer (EPMA), and a wavelength dispersive spectrometer (WDS), respectively. Massive δ-ferrite was observed in the fusion zone of the first pass welds during welding of dissimilar stainless steels. The σ phase precipitated at the inner δ-ferrite particles and decreased δ-ferrite content during the third pass welding. The σ and δ phases can be stabilized by Si element, which promoted the phase transformation of σ→ϱ+λ₂ in the fusion zone of the third pass welds. It was found that the σ phase was a Fe−Cr−Si intermetallic compound found in the fusion zone of the third pass welds during multi-pass welding.     

土工格室在生态防洪工程中的应用

河北省迁安市滦河生态防洪工程是河北省重点工程建设项目，在建设中采用土工格室生态护岸工程技术，不仅大大提高了工程建设的速度和质量，而且延长了堤坝使用寿命，减少了维护成本，收到了环保、生态等方面的综合效益。     

Analysing the Diversity of Water Pricing Structures: The Case of France

This paper presents the results of a 2003 national survey of urban water pricing structure implemented by 429 district level water utilities. After providing some background elements on the diversity of existing water pricing structures, the paper shows how each structure can be used to achieve different management objectives (water allocation efficiency, costs recovery, and equity). It then describes the structures adopted by French water utilities, showing that flat rate are rarely adopted; declining blocks frequently used; and increasing blocks pricing which should be used to promote water use efficiency remain extremely rare. A statistical clustering is then conducted and a typology of situations elaborated. The paper concludes with highlighting that current pricing structures are influenced by past practices and that the dominant objective of water utilities is to cover costs.     

Asymptotic reduced-dimensional steering strategies for CMG singularity-free control

The geometric singularity problem is one of principal difficulty when using single-gimbal control moment gyros as spacecraft attitude control devices. To overcome singularity, new steering logics are suggested in this paper which results in a reduction in the difficulty of generating gimbal rates around a singular state. One of the suggested steering laws presented is the reduced dimensional singular value decomposition steering law, which adopts the singular value decomposition in reduced dimensional forms. Two other steering laws make use of the least square method in reduced dimensional forms. All of the suggested steering laws have been generated for the compensation of the torque insufficiency. These logics are verified mathematically and simulations at a singular condition and non-singular condition are performed to see how well they work.     

The summary of researches on ADS in China

The conceptual study on the accelerator driven system (ADS) that lasted for about five years ended in 1999 in China. As one project of the National Basic Research Program of China (973 Program) in the energy domain, which is sponsored by the China Ministry of Science and Technology (MOST), a five-year-program of fundamental research of ADS physics and related technology was launched in 2000 and passed national review at the end of 2005. The China Institute of Atomic Energy (CIAE), the Institute of High Energy Physics (IHEP), the Institute of Heavy Ion Physics in Peking University (PKU-IHIP) and other institutions jointly carried out the research. The research activities were focused on HPPA physics and technology, reactor physics of external source driven sub-critical assembly, nuclear data base and material study. For HPPA, a high current injector consisting of an ECR ion source, LEBT and an RFQ accelerating structure of 3.5 MeV was built. In reactor physics study, a series of neutron multiplication experimental study has been carried out and still being done. The VENUS facility has been constructed as the basic experimental platform for neutronics study in ADS blanket. It’s a zero power sub-critical neutron multiplying assembly driven by external neutron produced by a pulsed neutron generator. The theoretical, experimental and simulation study on nuclear data, material properties and nuclear fuel circulation related to ADS is carrying on to provide the database for ADS system analysis. The main results on ADS related researches will be reported.