应用于中低压母线侧的弧光保护系统

介绍了弧光的一般特性,以及产生弧光的原因和危害.针对国内中低压母线没有快速保护的现状,提出了一种弧光保护系统,实现了母线、开关柜的快速保护,为开关柜、母线和各种变流设备的弧光故障提供全面的保护,将设备的损害和人员安全的威胁降至最低.     

CNC弯管机上管材线结构空间成形过程的计算机模拟

针对目前CNC弯管机应用中存在的一些不足之处,编制了关于管材线结构空间弯曲过程及弯管机模具动作过程的计算机图形模拟软件,应用于日本OPTON公司的MS—50R CNC弯管机上,较好地解决了程序调试过程中易发生模具与管件干涉而损坏机器及产品的问题。     

Modeling and rendering of realistic waterfall scenes with dynamic texture sprites

We propose an efficient approach for authoring dynamic and realistic waterfall scenes based on an acquired video sequence. Traditional video based techniques generate new images by synthesizing 2D samples, i.e., texture sprites chosen from a video sequence. However, they are limited to one fixed viewpoint and cannot provide arbitrary walkthrough into 3D scenes. Our approach extends this scheme by synthesizing dynamic 2D texture sprites and projecting them into 3D space. We first generate a set of basis texture sprites, which capture the representative appearance and motions of waterfall scenes contained in the video sequence. To model the shape and motion of a new waterfall scene, we interactively construct a set of flow lines taking account of physical principles. Along each flow line, the basis texture sprites are manipulated and animated dynamically, yielding a sequence of dynamic texture sprites in 3D space. These texture sprites are displayed using the point splatting technique, which can be accelerated efficiently by graphics hardware. By choosing varied basis texture sprites, waterfall scenes with different appearance and shapes can be conveniently simulated. The experimental results demonstrate that our approach achieves realistic effects and real‐time frame rates on consumer PC platforms. Copyright © 2006 John Wiley & Sons, Ltd.     

环保型(无泥炭型)烤烟湿润育苗基质的研究Ⅰ.基质材料的筛选及其配比效果

以炭化谷壳、膨胀珍珠岩、红泥土、泥炭、煤渣、废菌棒、炭化废菌棒、炭化烟杆、炭化稻草、堆肥、饼肥等作为原始材料,配制成各种配方,烤烟常规育苗基质配方为对照,研究各种基质对烟苗生长的效应.试验结果表明,炭化谷壳 : 红泥土=7 : 3和6 : 4(体积比)的配方育苗效果较好,且成本低廉、环保,可在烤烟育苗生产上推广应用.     

对烟叶原料保障上水平的探讨

针对当前我国烟草行业“卷烟上水平”的基本方针和战略任务,笔者从如何推进卷烟原料保障上水平出发,分析了当前烟叶生产现状,探讨了卷烟原料保障存在的主要问题,并提出了提升原料保障水平的对策。     

现代集成制造系统中的制造执行系统

在分析企业的自动化孤岛和信息孤岛的基础上，引出了MES的需求必要性。根据MES系统在现代集成制造系统（CIMS，contemporary integrated manufacturing systems）三层体系结构中的定位和作用，首先介绍了MES的一般基础集成模型及其与CIMS中其他信息系统间的关系，在此基础上强调了MES与CIMS中其他信息系统间集成的作用，并给出以MES为中心的整体信息集成所面临的主要问题和相应的解决措施，最后简单介绍了MES的发展状况和趋势。     

环保型(无泥炭型)烤烟湿润育苗基质的研究——Ⅱ.基质配方烟苗若干生理代谢状况

基质是育好烟苗的基础。在湿润育苗条件下研究了环保型(无泥炭型)烤烟育苗基质材料各种配方与烟苗生理代谢的关系。结果表明,采用炭化谷壳:红泥土=7:3和6:4的育苗基质,培育的烟苗自由水/束缚水比值低,叶绿素含量较高,活性氧代谢较协调,烟苗根系活力较强,生产适应性强。而采用废菌棒、煤渣的育苗基质,培育的烟苗叶绿素和胡萝卜素含量较低,根系活力较小,生理代谢不协调,干物质积累较少。     

基于AICC课件开发规范的航空CBT系统

研究美国航空工业计算机辅助训练委员会(Aviation Industry CBT(Computer-Based Training)Committee,AICC)制定的计算机辅助训练(CBT)课件开发规范,在分析现有CBT技术背景和航空培训需求的基础上,结合多媒体技术、视景仿真技术与虚拟交互技术,开发基于虚拟现实技术的交互式计算机辅助训练(Interactive CBT,ICBT)系统.该系统主要为航空机务人员提供交互的、协同的训练方式,可以为机务人员进入模拟训练舱学习打下扎实的技能基础.     

OBJECTORIENTED NUMERICAL MANIFOLD METHOD

The design and management of the objects about the numerical manifold method are studied by abstracting the finite cover system of numerical manifold method as independent data classes and the theoretical basis for the researching and expanding of numerical manifold method is also put forward. The Hammer integration of triangular area coordinates is used in the integration of the element. The calculation result shows that the program is accuracy and effective.     

Intelligent Handover Triggering Mechanism in 5G Ultra-Dense Networks Via Clustering-Based Reinforcement Learning

Mobile Networks and Applications - Ultra-dense networks (UDNs) are considered as key 5G technologies. They provide mobile users a high transmission rate and efficient radio resource management....