Cubic boron nitride (Cbn) is a kind of artificial (synthetic) crystal. Transverse electro-optic modulation in a minute Cbn sample was carried out. Basing on the
A method for the calculation of the sensitivity factors of the rolling process has been obtained by differentiating the roll force model based on support vector
开发了用于科氏振动陀螺的在线自测试方法.该方法通过一种用于电容传感器的微机械陀螺数字读出电路实现.在微机械结构上施加一些额外的信号,传感器的最终性能(
An integrated method for concurrency control in parallel real-time databases has becn proposed in this paper. The nested transaction model has been investigated
用MS Xα方法研究了Nin(n =2～ 6 )团簇的电子结构和原子磁矩 .与晶体镍相比 ,有些团簇磁性明显增强 ,有些磁性明显减弱 ,有些则呈现出亚铁磁性 .分析发现 ,团簇的对称性对磁矩有着非常重要的影响 .对称性相似的团簇 ,磁矩大小也相仿 .仅有极少数原子的小团簇磁矩与团簇尺寸不存在递减或递增的规律性 .其原因是对于小团簇 ,增减一个原子可以引起对称性的根本变化 .超细微粒表面层由对称性较
The superiorities of air-cooled bainitic steels were described.A series of air-cooled bainitic steels containing manganese were developed and presented,which in
The 10Ni5CrMoV steel examined was a 16 mm thick plate. Specimens measuring 12 mm × 12 mm × 120 mm were thermally cycled using DM-100 A weld simulator with var
With thick plates of 2219 high-strength alloy, the microstructures of welded joints with twin wire MIG welding were analyzed. Experimental results show that no
In E-Commerce, consumers and service suppliers can find the services through the searching of Mobile Agents (MA).The suppliers disassemble the service requests