独立于SOAP协议的Web服务调用

尽管SOAP是众多访问 Web 服务的可能的绑定之一，使用 Web 服务的应用程序通常通过绑到 SOAP 的特定实现的 API 来完成工作。该文将描述一个更通用的、独立于 SOAP 的调用 Web 服务的方法，称之为“Web 服务调用框架”(WSIF)，隐藏了底层访问协议(比如 SOAP)的复杂性。     

火电厂锅炉火用损失大不等于节能潜力大

本文通过对电厂锅炉火用损失的进一步分析计算，认为现有锅炉火用损失之大部分是不可避免的，“锅炉火用效率可以大幅度提高”的观点是不切实际的。文章对火电厂节能工作具有一定的指导作用。     

On the order of stable compensators for a class of time-delay system

The stabilization using a stable compensator does not introduce additional unstable zeros into the closed-loop transfer function beyond those of the original plant, so it is a desirable compensator, the price is that the compensator‘s order will go up. This note considered the order of stable compensators for a class of time-delay systems. First, it is shown that for single-loop plants with at most one real fight-half plane zero, a special upper bound for the minimal order of a strongly stabilizing compensator can be obtained in terms of the plant order; Second, it is shown that approximate unstable pole-zero cancellation does not occur,and the distances between distinct unstable zeroes are bounded below by a positive constant, then it is possible to find an upper bound for the minimal order of a strongly stabilizing compensator.     

重庆民族地区小学生心理健康状况调查

采用心理健康诊断测验对重庆民族地区的620名1-6年级小学生进行了调查.调查结果:小学生心理问题的总检出率为1.9%,至少有一项心理问题的检出率为51.1%;学生最主要的心理问题是学习焦虑,其次为身体症状、过敏倾向、自责倾向和恐怖倾向;家庭环境和学习成绩是影响小学生心理健康的重要因素;从1-6年级,小学生的心理健康水平呈W状发展趋势.     

Rapid 3D human body modeling based on Kinect technology

The 3D shape of the human body is useful for applications in fitness,games and apparel.Accurate body scanners,however,are expensive,limiting the availability of 3D body models.In this paper,we focus on the human body 3D modeling using one Kinect sensor modeling method.To get the human body model fast,three steps in rapid modeling of the human body are carried out.Firstly,according to anthropometric parameters,the standard model is parameterized;Secondly,the Kinect depth image of the human body model is gotten through,then,by using the PCL library the point cloud data is processed and matched,and the human body model is optimized;Finally,the realistic human body model is obtained with the rapid integration of the standard model and PCL library.     

A Method for Automatically Establishing a Mathematical Model of Kinematic Analysis to a Planar Mechanism with a Multiple Joint and Prismatic Pair

A method for automatically establishing a mathematical model of kinematic analysis to a planar mechanism with multiple joint and prismatic pair is presented.The breadth(or depth) first search spanning tree can be obtained based on an adjacency matrix of the mechanism.Then the kinematic chain(or mechanism)’s basic loops can be obtained.On the basis of these basic loops,a mathematical model of kinematic analysis can be established and solved automatically.In the sense of a calculative mechanism,structural analysis of the kinematic chain relates to the kinematic analysis of a mechanism.Thus,an effective way is supplied to the given mechanism’s kinematic analysis for automatic modeling and solving,and a method is supplied to the structural type to optimize kinematic synthesis.     

HDDR工艺条件及均匀化处理对Nd12.6Fe69.3Co11.6 B6.0 Al0.5合金磁性能的影响

研究了HDDR工艺条件(包括HD温度、HD时间、DR温度、DR时间)对Nd12.6Fe69．3Co11.6B6．0Al0．5合金磁性能的影响；比较了均匀化处理和未均匀化处理的合金经HDDR工艺后磁性能的差异；通过对两种舍金原始态的XRD谱线分析，找出存在差异的原因。     

数据缺失下学习贝叶斯网的SEM算法

针对SEM算法易收敛于局部最优的问题,提出一种改进SEM算法——DSEM-PACOB算法,采用PACOB算法提供的良好候选网络及合理的策略,估计节点变量缺失值,并使与待估节点变量紧密相关的若干节点变量直接参与估计。实验结果表明,与SEM算法相比,利用新算法获得的最终解的质量有所提高,且具有更好的稳定性。     

基于时域有限元的近场单站导体柱微波成像

介绍了一种在自由空间中对导体柱近场单站电磁成像的时域数值方法.提出以不均匀分布的点--离散点描述法,来代替通常采用的有限项三角级数逼近的形状函数来描述散射体.在正过程中采用时域有限元法获得其近区散射场,逆过程则通过遗传算法来寻找最优解.以不均匀分布于导体表面点的矢径的模作为优化变量.以在整个迭代过程中,目标散射场和计算散射场的误差总和与目标散射场场值绝对值之和的比值作为目标函数,使目标函数达到最小值来获得导体柱在自由空间中的电磁成像.     

基于超声传感器阵列的陆地自主车测距

目前,超声波传感器主要用于低速运动的自主式移动机器人短距离测量,采用的测距方法多把串音干扰看作有用信号的干扰项,尽可能排除.基于远距离超声波传感器,本文利用串音干扰设计了一种适用于高速行驶的陆地自主车进行远距离测量的方法.实验结果表明此方法的可靠性和精度都能满足陆地自主车的距离探测要求.