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Abstract: Based on the detailed analyses and studies on the feature and harmfulness of geological disasters in Fujian Province, the authors put forward several control measures in order to raise the abitity to prevent and reduce geological disasters in Fu
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文摘:通过对福建地质灾害现状及危害的分析、研究，提出防治福建省地质灾害的对策，以提高福建省防灾减灾能力，减少和避免地质灾害造成的损失。 |
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Abstract: Based on the electronic focus technology development of state-of-the-art,the paper suggested a complete apparatus s cheme ofauto-focus based on SSPD(self-scanned photodiode array)and 8098 singl e chipprocessor,giving out a focus criterion algori
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文摘:在介绍与分析了国内外电子调焦系统的技术发展与现状的基础上，提出了一种基于SSPD（自扫描光电二极管列阵）与8098单片微处理器自动调焦的整体技术方案，给出了基于图像高频成分统计的聚焦判识算法，在此基础上实现了反射式与透射式光学显微镜的自动调焦，同时对系统的可靠性有关的其它相关问题如光源稳定性、步进电机驱动等问题也进行了讨论。 |
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Abstract: Based on the environmental laws of country, in the way of environmental engineering and system engineering, dissertating the definition action and realizing ways of waste minimization, dealing the relationship of waste minimization and environme
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文摘:依据国家环保法规，遵循环境工程学和系统工程学的基本原理,结合环境管理的实务经验，分析、讨论了工业减废的定义、作用与实现途径，论述了工业减废与环境审核的内在联系。 |
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Abstract: Based on the experimental investigation into cutting force in milling, a new algorithm, i.e. the low-pass digital filter, was proposed and developed for tool breakage detection in milling,and a lot of experiments have been carried out to verify
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文摘:本文在对铣削扭矩进行实验分析的基础上，从数字信号处理的角度出发，提出了频域内用于刀具破损监测的低通数字滤波算法，详细介绍了低通数字滤波器的设计原理，并对该算法进行了实验验证。 |
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Abstract: Based on the fundamental theory of computation of the cable-prestressed steel trusses established in paper［1］,the iterative perturbation formulas which inversively determine the stiffenesses of elements of steel trusses and cables with the restr
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文摘:基于文［1］所建立的拉索式予应力钢桁架基本计算理论，根据矩阵摄动原理进一步给出了以竖向结点位移为约束反演确定任意布索张拉予应力钢桁架单元刚度和拉索刚度的摄动迭代公式。 |
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Abstract: Based on the fuzzy mathematics,it establishes the rules of the fuzzy reliability design for the bolt-joint set,discusses the effect of pre-tighten force and the axial changing load on the set,and shows an example.
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文摘:将模糊数学理论引入可靠性设计中，考虑预紧力和轴向变载荷状态的影响因素，建立螺栓联接的模糊可靠性设计准则，并给出了设计实例。 |
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Abstract: Based on the gauge theory of various interactions,some new solutions of the gauge field equations are discussed,the potential is introduced,and the relations among the results and limit cycle,various singular points are derived.Finally,it is exp
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文摘:从各种相互作用的规范理论出发，讨论了规范场方程的某些新的解，并引入了势，然后探讨了它们与极限环、各种奇异点的关系，最后论述了这些结果可能具有的粒子性质和相变等物理意义. |
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Abstract: Based on the geological conditions and in-situ investigation of the debris flows happened in June-July,1991,in the Dianchang gully of Bayi town,Tibet,the authors analyse the feature and development tendency of these debris flows in this paper.
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文摘:根据西藏八一电厂沟1991年6-7月暴发的泥石流的地质条件和现场调查，分析泥石流的特征及其发展趋势。 |
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Abstract: Based on the heat equilibrium fundamental theory and the unsteady heat transmit equation,a numerical model of temperature field of an underwater oil storage tank was established.The numerical prediction was obtained and compared with the experim
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文摘:基于对储油罐模型试验和温度场变化规律的大量实测数据，并对相关参数进行优化分析，依据热平衡基本原理和导热微分方程，用有限差分法对非稳态传热进行数模计算，得到了与实验值吻合较好的油罐温度场计算结果，为工程设计提供依据。 |
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Abstract: Based on the hypotheses of three-piece straightening curve.It isverified that the method for using little deformation condition was true with accurate solution of three-piece straightening curve.The mechanics behavior of slab was analyzed in reg
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文摘:基于三段矫直曲线应变速率的假设,通过计算三段矫直曲线的精确解,验证了使用小变形条件的正确性;考虑高温铸坯蠕变性能,对铸坯的力学行为进行了分析,得出了使用三段矫直曲线方法,铸坯应变速率、应力及应变在矫直区内变化较为平缓,可有效避免铸坯内裂纹的形成;使用本文三段矫直曲线精确解,调整辊列位置,可进行连铸机的在线技术改造。 |
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Abstract: Based on the integrated inertial navigation system mainly consisting of inertial navigation system (INS) and electrostatically supported gyro monitor (ESGM),mathematical and hardware-in-the-loop simulation in the course of the development of the
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文摘:本文以用惯性导航系统(INS)和静电陀螺监控器(ESGM)为中心的综合惯性导航系统为背景,讨论了综合导航系统研制过程中的数学和半实物仿真技术。 |
