Emerging Technologies

One of the most promising medical device therapies is neurostimulation. Advances in implantable device technologies make it now possible for patients suffering from a wide array of debilitating neurological conditions to receive adequate treatment. Implantable neurostimulation systems include cochlear implants, cortical stimulators, deep brain stimulators (DBSs), gastric nerve stimulators, spinal cord stimulators (SCSs), and vagus nerve stimulators (VNSs). Neurostimulation currently treats several debilitating conditions, including major treatmentresistant depression, epilepsy, gastroparesis, hearing loss, incontinence, chronic, untreatable pain, Parkinson disease, essential tremor, and dystonia [1]?[3].     

线性涡流场有限元法的误差分析

本文以一个典型二维涡流场问题作为计算实例,分析了■有限元法求解线性涡流场时产生离散误差的主要因素.为了得到较高的磁密计算精度,文内分析比较了几种计算方法,得出精度较高而无需增加计算机内存的一种混合解法.     

A Statistical Analysis of the Grades of B.S.E.E. Recipients

A statistical analysis is performed on 11 course grades for over 200 B.S.E.E. students. These students graduated from the California State University, Long Beach (C.S.U.L.B.) over a four-year period. The resulting means and correlations along with certain other data provide an interesting insight into academic tendencies. Some conclusions are drawn from these tendencies as to future industrial success and as to effective course development.     

新兴能源产业规划上报国务院

随着我国风电市场的快速发展,原有<可再生能源中长期发展规划>中关于2020年风电装机容量达到3000万kW的目标有望提前10年实现.在国家大力推进新能源产业发展、促进节能减排的大背景下,能够适应我国新能源产业快速发展势头的新规划为业界翘首所盼.     

学校体育与体育后备人才培养

提高一个国家竞技的水平必须选拔和培养一批高水平的优秀竞技体育人材。阐述了西方发达国家竞技体育后备人才的培养模式,分析了我国后备人才培养现状,对我国后备人才培养提出了建议。     

The effect of transition-metal addition on the non-equilibrium E.M.F.-type gas sensor

In this study, we made single chamber gas sensor which had two SnO₂ electrodes pasted onto either side of zirconia electrolyte. Transition metal (TM) was added in one of two SnO₂ electrodes to induce and thus confirm the catalytic effect of transition-metal. Since 1 mol% TM-doped SnO₂ showed the negligible change in microstructure, the effect of microstructure change could be ignored. The Co addition increased the e.m.f. of working electrode (TM-added SnO₂) in air, implying the enhanced oxygen adsorption. The addition of TM to SnO₂ was also effective in changing the e.m.f. values in H₂ balanced by air. Fe and Ni addition exhibited decreased e.m.f. in H₂ from that in air. Thus, Fe and Ni addition improved the catalytic activity for H₂ oxidation. Cu addition slightly improved the catalytic activity for CO oxidation. The results show that Co is expected to be a good additive for the cathode of solid-oxide-fuel-cell (SOFC) at low temperature. On the other hand, Fe, Cu, or Ni is good additives for anode.     

浅谈高校体育教学中的德育工作

面对新形势下高校教育的社会背景以及高校教育工作所面临的新问题,也为进一步落实党中央、国务院[2004]16号文件<关于进一步加强和改进大学生思想政治教育的意见>,笔者结合自身从事体育教学的具体实践和经验,浅谈高校体育教学中进行德育的必要性及措施.     

E2001 UPS装置中的逆变器

文章论述了目前在国内外电力通信等系统广泛应用、技术在世界上领先的E2001 UPS逆变器主电路,论述了控制主电路运行的逆变检测及逆变器静态开关支路控制板(IST)和逆变控制板(IWM-3)两块逻辑板的功能作用,给出了主电路和两块逻辑板的具体电路图,分析了主电路和控制逻辑板的具体工作原理.     

高电压低电流节能潜油电机的设计

潜油电机为潜油电泵机组的动力部分,它的节能降耗对整个电泵井的节能降耗起着决定性作用.在hx全面介绍高电压低电流节能潜油电机开发研究的设计原理及节能降耗的效果对比.该电机在现场应用良好,效益显著.     

Emerging Markets for Renewable Energy: The Role of State Policies during Restructuring

Policies being developed as states restructure could have a substantial impact on renewable energy development, but only if policymakers give forethought to sticky design issues.     

电子镇流器电磁兼容性(EMC)技术方案探讨--SY/EMC203A厚膜集成电路(IC)简介

照明电器电磁兼容(EMC)问题,日益受到世界各国的高度重视,我国已将该项目作为强制性认证要求(3C认证),但目前照明电器行业在执行上却相对缺乏全面性共识,特别是在如何解决电子镇流器电磁兼容性(EMC)问题上,尚无成熟可靠的技术措施,现状堪忧.本文谨就此提出一种用于电子镇流器的技术解决方案和EMC 厚膜集成电路(已申请专利),供照明科研设计人员探讨和供照明电器生产企业直接采用.