基于故障暂态电流的无通信保护研究

对故障电流信号噪声的频谱特性进行仿真研究表明，窄频带的高频信号不易很好的表故障高频暂态分量的特征，利用多分辨分析和小分解快速算法对故障暂态电流进行分析，可以充分反映故障暂态电流不同频率成分的特点，以此构成的暂态电流保护递推新判据，可以准确区分区内，区外故障。EMTP仿真证明了新方案的有效性。     

维吾尔、哈萨克文图文电视演播软件的研制

介绍了实现标准广播电视制式的７６８×５７６ ２５６ ｂｉｔ隔行扫描全屏显示的维吾尔和哈萨克文电视图文演播软件的研制方法,针对维吾尔和哈萨克文字的书写特点研究了自动选形和连写处理等几个关键编程技术。     

安藤忠雄的几何方法论

安藤以其执着的信念,具有标识性的几何手法,抵达了“纯粹空间”的彼岸,成功营造了人类精神的乌托邦.就安藤如何将几何学提升为方法论,使其作品具有一种超越国界、超越时间的魅力,结合最新实例做出简要分析.     

甘肃正宁南部煤田煤质特性分析

通过试验数据,对甘肃正宁南部煤田主采8层煤的煤质特性及主要工艺性能进行分析评价,并初步提出了该煤田煤的利用方向。     

富田古村传统民居室外门楣匾额特征及文化研究 #

匾额是中华传统文化的瑰宝,是一个地区历史、文化、艺术及民风民俗的重要体现,也是居民生活的缩影。富田古村位于江西吉安青原区,是江西庐陵文化的典型代表,挖掘其传统民居室外门楣匾额的类别、特征及文化内涵,研究其蕴含的社会、教育和生态意义,有助于促进优秀传统建筑文化、工匠精神的传承和发扬。     

关于异黄酮类化合物精制方法的探讨

简单介绍了异黄酮类化合物的结构、性质,着重对吸附法、超滤膜法、溶剂提取（萃取）法、色谱法、重结晶法等异黄酮精制方法的特点和应用情况进行了综述。     

遥感图像的云分类和云检测技术研究

为了有效减小云层遮盖对遥感图像数据利用率的影响,提出了一种基于灰度特性 的算法,实现了遥感图像高效自动的云分类及云检测。该方法首先将大幅遥感图像切分成小块 子图,然后统计子图灰度值的均值和方差,在此基础上将云分成无云、薄云和厚云三类,最后 通过边缘检测算法,实现了对厚云影响范围的有效标记。对100 幅典型水域遥感图像的实验测 试结果表明：正确云分类判别率达到97%,误判率小于4%,漏判率小于2%,基本满足实时性 需求,证明了该算法的有效性。     

Choice of a pertinent color space for color texture characterization using parametric spectral analysis

This article presents a comparison of different color spaces including RGB, IHLS and L?a*b* for color texture characterization. This comparison is based on the fusion of the independent spatial structure and color feature cues. In IHLS and L*a*b*, two channel complex color images are created from the luminance and the chrominance values. For such images, two dimensional complex multichannel linear prediction models are used to perform parametric power spectrum estimation and the structure feature cues are computed from this estimated power spectrum. Quantitative comparison of auto spectra of luminance and combined chrominance channels for different color spaces is done. This comparison is based on the degree of decorrelation between luminance and chrominance information provided by different color space transformations. Three dimensional histograms are used as color feature cues. Then, to classify color textures, Kullback-Leibler divergence based symmetric distance measures are calculated for pure color, luminance structure and chrominance structure feature cues. Individual as well as combined effect of information from all feature cues on classification results is then compared for different color spaces and different color texture data sets. The proposed color texture classification method performs better than the state of the art methods in certain cases. The L*a*b* color space gives us a better characterization of the chrominance spatial structure as well as the overall spatial structure for all of the chosen data sets. Experimental results on pixel classification of color textures are also presented and discussed.     

陶瓷湿敏电阻器静态校准曲线的线性拟合

陶瓷湿敏电阻器是湿度传感的重要元件,但因其阻-湿特性往往呈非线性而使用不便。本文利用最小二乘法对典型的铬镁钛系陶瓷湿敏电阻的阻-湿特性进行了线性拟合。结果表明,这种线性拟合方法简单可行,可用于非线性湿敏等敏感电阻器件的线性化处理。     

论城市品格的塑造——以镇江为例

城市品格是城市无形层面里最本质的部分。城市品格的塑造需要渗入人文精神和城市特色,这样才能使人们生活得更美好。对镇江而言,要塑造城市品格,就需要立足镇江的历史与现实,结合镇江民众的思考,从功利与超功利的角度进行具体的探索。