开展职业健康安全管理体系认证提高勘察设计单位的管理水平和市场竞争力(六、七期连载)

（第一部分刊登在2006年第六期） 二、职业健康安全管理体系的核心思想与结构要素 1.管理体系的运行基础 系统化的“戴明模型”,或称为PDCA模型是职业健康安全管理体系的运行基础.按照“戴明模型”,一个企业的经营活动可分为“计划（PLAN）、行动（DO）、检查（CHECK）、改进（ACT）”四个相互联系的环节.     

Gravitational model of the Taiwan lithosphere (along the profile Taiwan Strait-Taiwan Island-West Philippine basin)

Based on two-dimensional gravity modeling, the density section of the lithosphere beneath Taiwan and the surrounding areas is constructed. According to the density parameters, the lithosphere of this region comprises both the continental and oceanic types. The continental lithosphere is lighter than the oceanic one and demonstrates insignificant density differentiation through the entire section. The oceanic lithosphere is more contrasting with respect of both the crust and mantle density. The complicated Taiwan density structure corresponding to Taiwan Island is defined to be superimposed on the transition zone between the continental and oceanic lithospheric blocks. This structure with contrasting density boundaries is characterized by the elevated and high density values of its constituting heterogeneities. The formation of the Taiwan density structure is related to geodynamic processes in the Taiwan area marking the collision zone between the Eurasian and Philippine Sea plates.     

A Keystone Transform Without Interpolation for SAR Ground Moving-Target Imaging

Synthetic aperture radar (SAR) image formation for a ground moving target necessitates the compensation of the unknown target trajectory. The keystone transform has been employed to remove the linear component of the range migration for the moving target, where interpolation is required. In this letter, a realization of the keystone transform avoiding interpolation is presented. The kernel of this transform, i.e., the range-frequency-dependent azimuth time rescaling, is implemented using only complex multiplications and fast Fourier transforms based on the scaling principle, which has been successfully applied in the equalization of the space-variant range cell migration in SAR processing. In addition, the moving target is coarsely focused according to the SAR geometry and the platform velocity while exploiting the scaling principle. This preliminary focusing is helpful in the isolation of the moving target from ground clutter, so as to facilitate a more refined processing with respect to each mover. SAR raw data combined with simulated echoes of moving targets are utilized to validate the presented approach     

Reduced-Dimensional Processing for Ground Moving Target Detection in Distributed Space-Based Radar

With multisatellite radar systems, several additional features are achieved: multistatic observation, interferometry, ground moving target indication (GMTI). In this letter, a new reduced-dimensional method based on joint pixels sum-difference (Sigma-Delta) data for clutter rejection and GMTI is proposed. The reduced-dimensional joint pixels Sigma-Delta data are obtained by the orthogonal projection of the joint pixels data of different synthetic aperture radar (SAR) images generated by a multisatellite radar system. In the sense of statistic expectation, the joint pixels Sigma-Delta data contain the common and different information among SAR images. Then, the objective of clutter cancellation and GMTI can be achieved by adaptive processing. Simulation results demonstrate the effectiveness and robustness of the proposed method even with clutter fluctuation and image coregistration errors     

计算避雷针保护范围的一种方法

本文介绍了作者在长期实践中总结出的一种计算避雷针保护范围的方法,该方法简单实用,特别是在施工现场能解决实际问题,避免套用繁琐的公式,为防雷工程设计施工人员提供简便易行的方法,提高防雷工程人员解决实际问题的能力。     

The Filament Disappearance of 7 May 1992 (the Ebi)

The 7 May 1992 filament disappearance in the low corona is analyzed. The cool and hot components of this event are studied, using H, soft X-ray and radio data. We first show the general effect of the disparition brusque (DB) on the life of the filament, which was a quiescent filament in the vicinity of an active region, and then give the history of the development of the 7 May event. The main stages of the event are: (i) the formation of hot arches spanning the cool filament; (ii) rise of the filament, with plasma ejection into the corona, in which we note some spreading of loops from the main body, with two distinct rising velocity phases of the H filament; (iii) formation of X-ray arches below the filament, the foot points of the arcades being two-ribbon H flare patches. The dynamics of H and X-rays features are given.     

γ射线脉冲星的辐射光度

本文以极冠模型为基础,计算了脉冲星γ射线辐射光度,指出对不同的脉冲星必须考虑辐射立体角和可见辐射区对观测光度的影响．考虑了这些观测效应后,计算的光度和观测值基本符合．预言了一些可能的γ射线脉冲星,并对其性质进行了研究．     

南方集约农区农牧结合对农业可持续发展的作用

为寻求该区农业可持续发展的途径,作者在分析其农业可持续发展的主要制约因素基础上,对农牧结合在实现农业可持续发展中的功能作了全面论述。结果表明,农牧结合是实现该区农业可持续发展的一条有效途径。最后还提出了该农区农牧结合的可行途径及有效措施     

钒的Kβ谱带精细结构的测定及钒的价态分析

用普通Ｘ射线荧光光谱仪测定了钒的氧化物、钒酸盐及含钒混合物中Ｖ的Ｋβ谱线,借助一套有效的谱处理程序,获得了有关Ｋβ谱线精细结构的谱峰参数,证实了谱线轮廓（Ｋβ″峰逐渐显著,Ｋβ５、Ｋβ″向高能端位移,Ｋβ５与Ｋβ１,３的分开趋势,Ｋβ１,３半峰宽发生变化）及谱峰参数（Ｋβ５峰能量,Ｋβ５与Ｋβ１,３能量差,Ｋβ５与Ｋβ１,３及Ｋβ″与Ｋβ１,３的强度比,以及Ｋβ５和Ｋβ１,３的不对称因子）与Ｖ的氧化数变化呈很强的相关性及规律性变化。