一种应用于智能电网的多路数据采集系统设计

数据采集技术是信息科学的一个重要分支,更是智能电网中一项重要的技术。设计出了一种具有8通道模拟量输入及开关量输入/输出、日历等功能的通用多路数据采集系统,采用的控制器的核心器件为TI公司的MSP430F149,指出该系统具有功耗低、体积小、易操作等优点。     

Consecutive tracking for ballistic missile based on bearings-only during boost phase

This paper proposes a modified centralized shifted Rayleigh filter(MCSRF) algorithm for tracking boost phase of ballistic missile(BM) trajectory with a highly nonlinear dynamical model based on bearings-only.This paper contributes three folds.Firstly,the mathematical model of an MCSRF for multiple passive sensors is derived.Then,minimum entropy based onedimensional optimization search to adaptively adjust the probability of the different filters for real time state estimation is deployed.Finally,the unscented transform(UT) is introduced to resolve the asymmetric state estimation problem.Simulation results show that the proposed algorithm can consecutively track the BM precisely during the boost phase.In comparison with the unscented Kalman filter(UKF) algorithm,the proposed algorithm effectively reduces the tracking position and velocity root mean square(RMS) errors,which will make more sense for early precision interception.     

一类反周期函数插值算子的推广

建立了反周期函数的（0,δP）插值算子,得到了插值问题解的相关结论,是对（0,P（D））插值算子的一种推广.     

说“休”道“闲”

论述"休"、"闲"二字的原初构形意图,梳理二者意义发展的线索及其与相关字词的意义联系。指出休的字形构意与表示哺乳的乳字有相似之处,人对自然物的依赖犹如小孩对母亲的依赖,是文章的一个亮点。     

Studies of layout of world machine tools industry based on patent analysis

As the foundation of an industrialized country nowadays, machine tools industry is regarded as the engine of industrial development of a country. The developed countries, such as USA, Germany and Japan, have widely deployed the technology of using the patent in order to keep their strength in various fields. This research examins the CNC machine tools industry in the world by using the pa- tent analysis method. It first gives an overview about the world patent application in CNC machine tools industry from 1963 to 2010 and divides the development of the industry into five stages. It also lists the patent application of the world top 20 countries, where the top 5 countries are compared. The patents of the world top 10 companies of machine tools manufacturers are mapped according to the international patent classification （IPC）, and the future trends of world machine tools industry are discussed. Finally conclusions and suggestions are presented.     

Hierarchical power control for OFDM based LTE system

3 GPP LTE has approved uplink intra-cell power control and defined overload indicator （OI） for uplink inter-cell power contrQ1 to mitigate the inter-cell interference （ICI）, respectively. In this pa- per, we propose a hierarchical power control （ HPC ） scheme where intra-eell and inter-cell power controls interact with each other. The inter-cell power control eommand is generated by radio re- source management （RRM） entity according to the ICI-load model together with the current ICI and served load information. This ICI-load model is proposed as a guideline for coordination among cells to enable the system to approach its system specific interference over thermal noise （IoT） work area. Simulation results show that for HPC scheme, the system＇ s IoT is well controlled to fit its pre-de- fined work area and the power efficiency is improved significantly. Our proposed scheme is also ro- bust to different settings of its inter-cell power control period.     

大鼠肝细胞核仁超微结构与rDNA分布位点

以常规电镜及NAMA－Ur DNA特异染色技术对Wistar大鼠肝细胞核仁的超微结构和rRNA的分布进行了观察。常规电镜技术表明大鼠肝细胞核仁纤维中心（FC）是电子透明区，数量较多，形状不规则。密集纤维组分（DFC）是围绕FC的环状结构部分，电子密度很高。FC中的染色质存在着一个介于集缩和解集缩状态之间的变化过程。NAMA－Ur DNA特异染色技术表明核仁内rDNA呈分散性分布，主要分布于DFC中（包括FC）的边缘），同时观察到与核仁相随染色质相连的核仁内rDNA呈念珠状结构。     

生长时间对ZnO纳米棒形貌和光学性能的影响

在低温条件下，利用化学溶液沉积法（CBD）成功在Si（100）衬底上生长出近一维ZnO纳米棒阵列．采用X射线衍射（XRD），扫描电子显微镜（SEM）和光致发光谱（PL）对样品进行结构、形貌和光学性能分析．结果表明：产物为结晶良好的六角结构晶体．随着生长时间的增加，ZnO纳米棒的尺寸随之增大．PL测试表明产物有较好的光致发光性能，并且随着纳米棒尺寸的减小，紫外发射峰发生蓝移现象．     

社科学报投稿摘要写作中常见问题及对策

摘要是论文的精华所在,是对论文所做的扼要概述,应能客观反映论文的主要内容信息。根据学报（社科版）2007—2010年的投稿情况,分析发现投稿在摘要写作方面主要存在摘要像引言或与引言重复;出现＂本人＂＂我们＂＂作者＂＂本文＂＂笔者＂作为陈述主语;摘要写作中不乏评价性语言过于简单,没有涵盖文章中心内容,读者无法了解全文信息等问题。因此,应高度重视摘要写作规范,遵循科技论文写作的国家标准和规范要求及不定期开设规范化专题讲座等,使作者写出可供发表的规范化文稿。