A New Mine Selective Earth Leakage Protection Device of low-voltage Distribution Networks 新型矿井低压电网选择性漏电保护装置研究
Research and application of the selective leakage protective system of low voltage distribution networks for mines based on DSP 基于DSP矿用低压电网新型选择性漏电保护装置的研究
As an example of application, a kind of selective single-phase-grounding protection system of underground HV distribution networks is introduced. 作为该原理的具体应用,介绍了一种基于五次谐波检测的井下高压接地选线系统。
This paper reviewed studies that investigate the impact of perceptual load on selective attention, and studies that examine the interaction between the distribution of attentional resources and other cognitive processes or factors, such as working memory load. 另外一些工作则关注其他认知过程如何影响注意资源的分配,其中知觉负载与工作记忆负载的关系是当前关注重点。
The selective distribution of trace elements in micas is controlled mainly by the emplacement, evolution and crystallization of the magma. 微量元素在云母中的选择分布主要受岩浆物源化学背景的制约,同时也受岩浆侵位和分异演化程度高低以及结晶的物理化学条件变化等因素的影响。
Fast and selective non-communication protection for radial connected distribution systems 快速有选择性的辐射状配电网无通道保护
Protective devices for short-circuit and earthing fault of water-pump and wind-motor should select non-selective equipment type distribution circuit-breaker which can meet starting requirements of motor. 消防水泵、风机的短路保护和接地保护电器宜选择满足电动机启动要求的非选择性装置式配电型断路器。
Oil-gas selective distribution is the key factor to determine the oil-gas gathering and transfer-ring plan for varieties of oilfields. 油气选配是确定油气类别不同的油田油气集输方案的重要因素。
Selective Leakage Protective Device Based on 80296 for Underground Low-voltage Distribution Network 基于80296的井下新型低压电网选择性漏电保护装置
The selective leakage protection system for underground HV distribution networks based on harmonic detection 基于谐波检测的井下高压电网选择性漏电保护系统
In this paper, the Enterococcus selective media ( EC) were chosen for quantitive esti-mation and species distribution of Enterococci of 91 healthy persons 'faeces. 本文用选择性培养基(EC)对三个年龄组共91例健康人群大便进行了肠道肠球菌定量分析和菌型分布调查。
The Selective Leakage Protection System of High-voltage Distribution Network for Mine Based on Current Compensation Method 基于电流补偿法的矿井高压电网漏电保护系统
A new method for the selective leakage protection system of high-voltage distribution network for mine using isolated neutral-point to ground& zero sequence current compensation method is presented in this paper. 本文提出了在中性点对地绝缘方式的矿井高压电网中采用零序电流补偿法实现选择性漏电保护新方法。
The results of the research on mAbs have shown that their specificities mainly presents high special affinity, selective cytotoxicity to tumor cells in vitro, and targeting distribution in tumors and more effective therapy. 抗肿瘤抗体药物的研究表明,其特异性主要表现为特异性结合,选择性杀伤,体内靶向性分布以及具有更强的疗效。
Cold-state Slag Discharge Characteristics of an Air-water Cooled Selective Slag Cooler under a Non-uniform Air Distribution 非均等配风下的风水冷选择性冷渣器冷态排渣特性
Selective Broadcast Data Distribution System 选择式广播数据分布系统
Beyond Vision Selective Visual Attention and the Distribution of Hot Visual Areas on the Web Page 选择性视觉注意与网页视觉热区分布的研究
Selective Protection Technology in the Low Voltage Distribution System 低压选择性保护技术
The Upper-stage and Lower-stage Selective Protection of the Electric Appliances on the Low-voltage Distribution Line 低压配电线路保护电器的上下级保护选择性
Research and Discuss of Selective Protection for Low Voltage Power Distribution System 低压配电系统选择性保护的探讨
Partial selective catalytic reduction of NO by hydrogen has been studied on non uniform activity distribution Pd/ Al 2O 3 catalyst with low Pd content in the excess of oxygen. 研制成功了低钯含量活性非均布PdAl2O3催化剂,实现了富氧条件下,氢部分选择性催化还原NO过程。
Select the appropriate drug design methods to make the drug selective distribution of inflammatory joints in RA, to reduce or eliminate its immunosuppressive effects on normal tissues and joints, can effectively improve the treatment of RA biotherapeutic agent. 选择合适的靶向药物使药物选择性分布于RA炎性关节,降低或消除其对正常组织和关节的免疫抑制作用,能有效提高RA药物的治疗效果。
With the development of the Internet techniques, there are lots of Event-driven Applications such as Content-based publish/ subscribe system, selective dissemination of information, content-based XML routing and news distribution. 随着信息高速公路的发展,互联网上出现了大量采用事件-驱动模式的应用,如主动服务中的发布订阅系统、基于内容的XML路由、XML文档分发以及新闻传递等。
With the research above mentioned, we design DRM system based on selective encryption mechanism in P2P media distribution system. 根据上述研究设计了P2P媒体分发系统中基于选择加密机制的DRM系统。
Channel length of the third line and fourth line in the next five years should choose combination mode with first line 、 second line and third line, and channel width adopt selective distribution and intensive distribution combination mode. 三线和四线市场未来五年渠道长度应该选择一级、二级、三级相结合模式,渠道宽度采用选择性分销和密集性分销相结合模式。