双峰寺水库移民实物指标调查方法分析

从大中型水库移民实物指标调查出发,通过对双峰寺水库移民实物指标调查,系统阐述了实物指标调查的方法,充分体现了实物指标调查的科学性、规范性,可为河北省乃至全国类似大中型水库移民实物指标调查提供借鉴。     

产后野生中华鲟如何康复

2008年11月21日至2010年12月31日,中国三峡集团中华鲟研究所科研人员研究了先期用氨基酸和其他抗生素进行治疗和能量补充,后用不同喂食方法对产后野生雄性中华鲟进行康复。主动摄食后,产后野生雄性中华鲟健康状况得到彻底改善。该研究表明产后野生雄性中华鲟的体能恢复可在中华鲟研究所康复车间的驯养池中得以实现。     

发电机变压器组封闭母线绝缘低的原因分析及处理

发电厂发电机变压器组封闭母线在停运后不同程度地存在绝缘下降的现象,以韶关发电厂为例,分析了封闭母线绝缘低的特点和原因,总结了现场处理的经验,给出了具体处理方法。     

Skeleton pruning as trade-off between skeleton simplicity and reconstruction error

The position and orientation of moving platform mainly depends on global positioning system and inertial navigation system in the field of low-altitude surveying, mapping and remote sensing and land-based mobile mapping system. However, GPS signal is unavailable in the application of deep space exploration and indoor robot control. In such circumstances, image-based methods are very important for self-position and orientation of moving platform. Therefore, this paper firstly introduces state of the art development of the image-based self-position and orientation method (ISPOM) for moving platform from the following aspects: 1) A comparison among major image-based methods (i.e., visual odometry, structure from motion, simultaneous localization and mapping) for position and orientation; 2) types of moving platform; 3) integration schemes of image sensor with other sensors; 4) calculation methodology and quantity of image sensors. Then, the paper proposes a new scheme of ISPOM for mobile robot — depending merely on image sensors. It takes the advantages of both monocular vision and stereo vision, and estimates the relative position and orientation of moving platform with high precision and high frequency. In a word, ISPOM will gradually speed from research to application, as well as play a vital role in deep space exploration and indoor robot control.     

交叉学科研究生创新与实践能力综合评估方法研究

结合研究型、管理型、工业型和国防型等不同产出类型的交叉学科研究生创新与实践能力特点,建立基于创新性活动及创新性成果的交叉学科研究生创新与实践能力综合评估指标体系,根据模糊数学理论设计提出一种基于该综合评估指标体系的评估方法,从而客观、有效地反映交叉学科研究生的创新与实践能力水平,为交叉学科研究生创新人才培养提供指导依据。     

编辑文档不发愁 特殊符号巧输入

编辑文档的时候,经常需要输入特殊符号,虽然所有的编辑工具都提供了特殊符号,但插入时必须按部就班地操作,非常麻烦。那么有没有什么简单方法,让特殊符号不再如此难请呢?今天我们就来解决这一问题。     

何必频繁刷新,网页更新自动提醒

时刻关注网页内容变化,比如关注天气、重要新闻等,原始的方法就是时时刷新网页,查看是否有更新的内容,这种方法不仅费时,也很费神。我们可以通过以下几种手段,让网页有风吹草动时自动提醒。     

本土化应用标准10——提高教师的教学能力

1解读标准10——提高教师的教学能力标准10——提高教师的教学能力采取行动,提高教师在提供一体化学习、使用主动经验学习方法以及考核学生学习效果等方面的能力。本土化应用标准7——一体化学习经验[1]、本土化应用标准8——主动学习[2],以及将要讨论的本土化应用标准11——学习考核等都对教师     

A nonsmooth IMC method for mechanical systems with backlash

This paper proposes a discrete-time nonsmooth internal model control （NSIMC） approach for mechanical transmission systems described by so-called sandwich system with backlash. In this method, a dynamic compensator is introduced to compensate for the effect of the input linear subsystem. Thus, the sandwich systems with backlash can be simplified as a pseudo-Hammerstein system with backlash. The corresponding NSIMC strategy is designed to control this system. The design procedure of the controller is presented based on the analysis on the robust stability by considering the model errors involved with the effect of backlash as well as the compensated error of the input linear subsystem. Moreover, as the model is switched among the different operating zones, the robust filters are proposed to guarantee the robust stability and satisfactory control performance of the system.     

基于JVM存储架构对Java引用传递的解析

Java中类、接口、数组之间的数据传递方式采用的是引用传递,通过分析JVM的存储架构,介绍方法区、堆、栈中的数据存储机制,深入解析Java引用型数据的存取方式,并以实例说明引用传递在JVM存储架构中的具体实现。