排序方式: 共有8条查询结果,搜索用时 93 毫秒
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ZHANG Liang LI DeRen LU ZhiChao LU CaoWei LIU TianCheng GUO Feng LIU KaiHuang WANG Jun & ZHOU ShaoXiong Central Iron Steel Research Institute Beijing China Advanced Technology Materials Co. Ltd. 《中国科学:信息科学(英文版)》2010,(5)
Amorphous magnetic alloy powders were prepared from bulk metallic glasses Fe74Cr2Mo2Sn2P10Si4B4C2 with supercooled liq-uid region of 32 K by water atomization.Amorphous magnetic powder core precursor was produced from a mixture of the amorphous alloy powder with addition of insulation and bonding materials by mold compacting at room temperature.After annealing the core precursor,the amorphous magnetic core exhibits superior magnetic properties as compared with molypermalloy powder core.The initial permeabil... 相似文献
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基于CORBA/Web的应用信息集成系统研究 总被引:1,自引:0,他引:1
产品数据管理(PDM)集成并管理所有与产品相关的信息、过程及人与组织,已成为计算机集成制造系统(CIMS)和并行工程的使能技术。文章结合某阀门厂实施SF-CIMS应用示范工程的实际需要,提出了一种基于COR-BA/Web的应用信息集成系统(SF-PDM),阐述了SF-PDM的设计思想,规划了系统的主要功能、体系结构及网络架构,以此为基础,创建了SF-PDM软件系统结构与实施模型,分析了SF-PDM的关键技术并给出了具体的实现方法。 相似文献
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In order to understand the laws of motion for supercavitating vehicle better, simplified equations for longitudinal motion of supercavitating vehicle were derived. Then the corresponding simulation software for trajectory of supercavitating vehicle was programmed, by which the theoretical predicted trajectories of the supercavitating vehicle at different velocities were obtained. It was found that the predicted trajectories at low speed and without cavitation on the vehicle in theory agreed well with those in experiments, and the theoretical predicted trajectories at high speed and with supercavity on the vehicle correctly reflected the motion laws of the supercavitating vehicle. The influences of various parameters of cavitator and rudder on the underwater trajectory were compared and analyzed, which can provide a guide for the design of hydrodynamic distribution and gross parameters of the supercavitating weapons. 相似文献
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不同温度下难降解工业废水水解酸化预处理的启动研究 总被引:1,自引:0,他引:1
通过对比试验进行了水解酸化反应器在不同温度下的启动研究,结果表明:温度为(30±1)℃时,反应器可以在1个月左右完成启动阶段,COD_(Cr)的去除率稳定在30%左右,BOD/COD可由进水的0.212~0.263提高到0.351~0.421,此时TTC-比脱氢酶活性为41.52 mg/L;而在低温10~12℃启动反应器时,大概需要2个月完成启动阶段,COD_(Cr)的去除率为25%左右,此时TTC-比脱氢酶活性为35.8 mg/L。试验表明在处理难降解工业废水时水解酸化反应器建议采用室温启动。 相似文献
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