管网结点处两相流相分离流动可视化在线检测实验研究

采用在线式可视化图象技术，对管网中的特征结构元件－－等直径水平Ｔ形分叉管（Ｄ＝３５ｍｍ）的空气－水泡状流，弹状流，分层流的相分离现象进行了实验研究，发现并定义了“新型完全相分离现象”，即在特定工况下，入流的气相流体将完全从直管出口流出，另外通过可视化研究对“压力波反馈效应”及“分叉管中气相重组现象”进行了分析和探讨；将入口质量流量、入口干度及支管质量抽走率对两相分离率的影响作了比较和分析。     

光盘刻录机性能研究

研究了光盘刻录机的性能,从光盘刻录机的使用入手,给出高性能刻录机应具备的性能参数.     

Target estimation using MIMO radar with multiple subcarriers

This paper analyzes the effect of waveform parameters on the joint target location and velocity estimation by a noncoherent multiple input multiple output (MIMO) radar transmitting multiple subcarriers signals. How the number of subcarriers influences the estimation accuracy is illustrated by considering the joint Cramer-Rao bound and the mean square error of the maximum likelihood estimate. The non-coherent MIMO radar ambiguity function with multiple subcarriers is developed and investigated by changing the number of subcarriers, the pulse width and the frequency spacing between adjacent subcarriers. The numerical results show that more subcarriers mean more accurate estimates, higher localization resolution, and larger pulse width results in a worse performance of target location estimation, while the frequency spacing affects target location estimation little.     

HFC网络中上行信道三种协议的比较

讨论了基于ＨＦＣ（混合光纤同轴电缆）网络上行多址接入信道的数据通信，比较了几种适于ＨＦＣ中ＭＡＣ（媒体接入控制）层上行数据流的协议，包括分布式协议ＲＡＬＯＨＡ，集中式协议ＵｎｉＬＩＮＫ，以及一种新的协议ＰＣＵＰ（流水线循环上行流协议），最后得出了ＰＣＵＰ协议比较适合ＨＦＣ网中的双向交互式业务的结论。     

纱条不匀时序模型的建立

采用Pandit Wu方法对并条纱条进行建模分析 ,提高了建模过程的程序化水平 ,可迅速建立在线预测模型。研究认为 ,并条纱条可以用AR(n)模型及ARMA(m ,n)模型进行预测控制 ,且模型的阶次一般为 2～ 5。     

聚合物极化的非马尔可夫过程

聚合物极化是典型的非马尔可夫过程，其中存在极化强度等于零而与温度或时间均无关的原始态．由此以后经历的过程，只要温度不太高而电场不太强，体系的热平衡极化性质确定并和弱场有线性关系而同以前的历史无关，但必须计及由原始态起的全过程的记忆效应．聚合物的动态极化性质，只能在全过程中以经历过的不同热平衡态隔开的每个片段中分别研究，不同片段的动态过程可以有完全不同的规律．给出了研究非马尔可夫过程的实验和理论方法实例     

Metabonomic analysis of hepatitis B virus-induced liver failure： identification of potential diagnostic biomarkers by fuzzy support vector machine

Hepatitis B virus （HBV）-induced liver failure is an emergent liver disease leading to high mortality. The severity of liver failure may be reflected by the profile of some metabolites. This study assessed the potential of using metabolites as biomarkers for liver failure by identifying metabolites with good discriminative performance for its phenotype. The serum samples from 24 HBV-indueed liver failure patients and 23 healthy volunteers were collected and analyzed by gas chromatography-mass spectrometry （GC-MS） to generate metabolite profiles. The 24 patients were further grouped into two classes according to the severity of liver failure. Twenty-five eommensal peaks in all metabolite profiles were extracted, and the relative area values of these peaks were used as features for each sample. Three algorithms, F-test, k-nearest neighbor （KNN） and fuzzy support vector machine （FSVM） combined with exhaustive search （ES）, were employed to identify a subset of metabolites （biomarkers） that best predict liver failure. Based on the achieved experimental dataset, 93.62% predictive accuracy by 6 features was selected with FSVM-ES and three key metabolites, glyeerie acid, cis-aeonitie acid and citric acid, are identified as potential diagnostic biomarkers.     

知识管理实施的评价和研究

简述了知识管理的特点，指出应从管理内容、组织机构、人力资源、组织文化和知识创新等方面对知识管理的实施进行评价，以判断知识管理所带来的经济效益和社会效益。     

论死刑中的程序正义

程序的设立是为了保证实体法的公正实施。我国还保留死刑,因此限制死刑是我国的当务之急,也是我国的刑事政策,可以概括为"不可不杀,不可多杀"。如何贯彻这个刑事政策,从程序正义做起来保证死刑的公正适用就成为一种选择。