改进的精密三点法——在线测量直线度方法的再探讨

在原精密三点法的基础上,对插值方法进行了改进,对随机误差采用了相应的数据处理方法,使得分离结果更加接近真实值,并有效地去除了随机误差的影响,得到了采样值加密的曲线,文中给出了改进的精密三点法的算法和流程图。从仿真和实验结果来看,该方法是具有可行性和可靠性的。     

C76、C78、C82、C84和C90的π电子磁化率

采用规范不变分子轨道方法,计算了Ｄ_２—Ｃ_（７６）、Ｃ_（２ｖ）￣－和Ｄ_３—Ｃ_（７８）、Ｃ_２—Ｃ_（８２）、Ｄ_２—和Ｄ_（２ｄ）—Ｃ_（８４）以及Ｃ_２—Ｃ_（９０）的л电子磁化率。其结果表明这些纯碳原子团簇分子具有较大的抗磁磁化率。反映出这些分子具有一定的芳香性及其л电子有较大的共有化运动程度。     

Is the Indian Nuclear Tiger Changing Its Stripes?

Sixteen years after stepping out of the nuclear closet, India's nuclear posture, some of its operational practices, and hardware developments are beginning to mimic those of the original five nuclear weapon states. Several proliferation scholars in the United States contend that India's national security managers are poised to repeat the worst mistakes of the superpowers’ Cold War nuclear competition, with negative consequences for deterrence, crisis, and stability in South Asia and the Asia-Pacific region. This article takes a contrarian view. It dissects the best available data to show why the alarmist view is overstated. It argues that not only are the alarmists’ claims unsupported by evidence, their interpretation of the skeletal and often contradictory data threatens to construct the very threat they prophesize.     

聚碳硅烷纤维成形过程的稳定性研究

通过改变不同的熔融纺丝工艺研究了聚碳硅烷纤维熔融纺丝时纺丝稳定性的影响因素。研究表明:提高介质温度到180～200℃、采用向下的环形吹风、控制成形区气流的大小与流向、纺程控制在90cm左右、加强集束与控制外部条件的稳定性等有利于提高纺丝稳定性。     

装甲车辆驾驶动作模糊模式识别研究

针对装甲车辆驾驶技能等级评判系统中,如何将驾驶训练过程中采集的驾驶动作数据还原成实际驾驶操作动作的瓶颈问题,采用模糊模式识别的方法,实现了对无限长待识序列数据的识别,并通过对实车采集数据的分析,验证了识别的有效性和准确性。     

病态信息的控制方法

在总结近10年病态信息控制工作经验的基础上,介绍了病态信息控制方法发展的6个阶段,提出了病态信息控制方法体系的3个层次和3种应用类型,形成了预处待用制和病态决策制2种病态信息处理的基本方法.3个层次是指:面向国家与社会的社会道德与法律的控制方法、面向组织的政策与策略的控制方法、面向基层的管理与技术的控制方法.3种类型是指检测/监测、整理、诊断方法.     

Evaluating methods for the reliability of a large 2‐dimensional rectangular k‐within‐consecutive‐(r,s)‐out‐of‐(m,n):F system

A 2‐dimensional rectangular k‐within‐consecutive‐(r, s)‐out‐of‐(m, n):F system consists of m × n components, and fails if and only if k or more components fail in an r × s submatrix. This system can be treated as a reliability model for TFT liquid crystal displays, wireless communication networks, etc. Although an effective method has been developed for evaluating the exact system reliability of small or medium‐sized systems, that method needs extremely high computing time and memory capacity when applied to larger systems. Therefore, developing upper and lower bounds and accurate approximations for system reliability is useful for large systems. In this paper, first, we propose new upper and lower bounds for the reliability of a 2‐dimensional rectangular k‐within‐consecutive‐(r, s)‐out‐of‐(m, n):F system. Secondly, we propose two limit theorems for that system. With these theorems we can obtain accurate approximations for system reliabilities when the system is large and component reliabilities are close to one. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2005     

坐标变换对双/多基地雷达测量误差的影响

本文讨论了坐标变换对测量误差的影响,并且定量分析了坐标变换前后的测量误差变化情况,得出了相应的结论。     

Client/Server 模式的智能语言集成框架

将ＡＩ技术集成到主流信息技术之中是提高信息系统智能化水平的一项十分重要的基础性工作。本文讨论一种Ｃｌｉｅｎｔ／Ｓｅｒｖｅｒ计算环境（简称ＣＳＥ）,它将Ｐｒｏｌｏｇ系统和Ｃｌｉｐｓ系统作为两种特殊的数据服务系统集成其中。ＣＳＥ支持客户应用使用确定的ＡＰＩ,以规范的Ｐｒｏｌｏｇ语言（或Ｃｌｉｐｓ语言）形式请求Ｐｒｏｌｏｇ服务器（或Ｃｌｉｐｓ服务器）提供问题求解服务。文章阐述了这一设计的合理性,讨论了ＣＳＥ的体系结构和实现技术,说明了与特殊数据服务无关的通信机制、ＡＩ语言服务器的挂接技术以及ＣＳＥ应用。     

关于大型线性规划问题鞍点算法的讨论

关于大型线性规划问题鞍点算法的讨论尚毅,张国光,成孟金（沈阳化工学院１１００２１）ＡＤｉｓｃｕｓｓｉｏｎｏｆｔｈｅＳａｄｄｌｅＰｏｉｎｔＡｌｇｏｒｉｔｈｍｆｏｒＬａｒｇｅＳｃａｌｅＬＰＰｒｏｂｌｅｍｓ￥ＳｈａｎｇＹｉ;ＺｈａｎｇＧｕｏｇｕａｎｇ;Ｃｈ...