一种基于可扩展对象的程序设计方法

在对可视化程序设计实现机制研究的基础上，结合面向对象程序设计提出了一种可扩展对象程序设计方法。以窗体对象研究为出发点，叙述了采用复杂对象模块以及存储管理器实现子复杂对象生成的方法，对大型系统的开发具有一定的现实指导意义。     

化学二氧化锰中试研究

采用碳酸锰沉淀热解法进行300t/a化学二氧化锰（CMD）中试开发研究,就生产中的一些问题做了叙述,介绍了中试产品的各项技术指标。硫酸锰溶液除杂后主要金属杂质为0.1mg/L,中间产品碳酸锰的振实密度达到2.18g/cm3;产品的振实密度达到1.86g/cm3。     

多离子交换器功能监督仪表改进

目前水处理设备中普遍采用以记录仪为主体的失效监督仪,以监督其阳床及阴床中的树酯工作动态.本文提出对该仪表的改进,引入单片机,构成智能化仪表,对系统中水样的电导率变化进行监督.当树酯功能失效时,可发出终点信息.它可对阳床和阴床同时监督,且可用于多台阳床及阴床同时监督,从而可节省多台现用仪表.     

Comparison of wound culture and bronchial lavage in the severely burned child: implications for antimicrobial therapy

BACKGROUND: The relationship of the burn wound flora to microbial pathogens in the tracheobronchial tree has important implications for antimicrobial therapy in the severely burned patient. Management of septic complications is bolstered by surveillance quantitative wound cultures (QWC) and bronchial lavage fluid (BLF) cultures. OBJECTIVES: To compare the organisms present in BLF with those found in QWC and to determine if QWC can predict BLF results. DESIGN: Results of BLF cultures from all patients who underwent bronchial lavage from January 1, 1996, to December 31, 1996, at our institution were compared with QWC data from the same date. Criteria for a positive match included an identical antibiotic susceptibility pattern and biotype. Match rates were calculated qualitatively and quantitatively. RESULTS: In 30 (48%) of the 62 BLF cultures, there was a match between the organism identified in the BLF and the QWC. When strict quantitative criteria were applied, the match rate was only 9 (14%) of 62. Burn size and inhalation injury had no significant effect on match rate. CONCLUSIONS: Whereas the microbial pathogens were similar in the QWC and BLF, linear regression showed no value of QWC in predicting BLF culture results. The difference between qualitative and quantitative match rates suggests cross-colonization between the burn wound and tracheobronchial tree, but little to no cross-infection. The QWC and BLF cultures must be performed independently in determining antimicrobial specificity in the burned patient.     

Kinetics and mechanisms of chemical reactions in nonequilibrium-plasma etching of silicon and silicon compounds

Plasma-chemical etching of silicon and silicon compounds is reviewed. It is shown that present data indicates that fluorine atoms and molecules are the main particles responsible for etching of silicon and that atomic fluorine is the main active particle for etching of silicon dioxide. Insufficient data exists to establish the contribution of charged and excited states to the etching of silicon and its compounds but oxygen atoms and molecules are seen to have a strong influence and fluorocarbon radicals can passivate the surface by forming polymer films.     

跟踪算法中一种新的数学建模方法

在跟踪领域，建立一个良好的运动目标描述模型是一种算法是否能取得优异效果的关键性因素之一。针对基于运动的跟踪算法提出了一种新的运动目标描述模型。该模型根据运动的连续性探求出运动过程中出现的各种情况之间联系的数学描述方法，并根据对运动目标的观测结果运用EM算法对模型参数进行实时更新。试验结果表明：该模型对部分遮挡，非刚性变形，目标外观发生改变均不敏感。     

用于内存数据库的Hash索引的设计与实现

电信领域已成为数据密集型行业，需要高性能的数据库系统作为支撑系统，基于磁盘的数据库系统不能满足“实时”、“近实时”访问数据库的需求，将数据库核心数据驻留在内存中，可以使用内存数据库来满足需求。Hash索引是数据库系统中广泛使用的索引技术之一，它能够快速地访问数据，易于设计和实现。该文根据内存数据库的特点，为电信网管系统的内存数据库设计并实现了Hash索引。     

基于并行支持向量机的多变量非线性模型预测控制

提出一种基于并行支持向量机的多变量系统非线性模型预测控制算法．首先，通过考虑输入、输出间的耦合，建立基于并行支持向量机的多步预测模型；然后，将该模型用于非线性预测控制,提出新的适用于并行预测模型的反馈校正策略，得到最优控制律．连续搅拌槽式反应器（CSTR）的控制仿真结果表明,该算法的性能优于基于并行神经网络的非线性模型预测控制和基于集成模型的非线性模型预测控制．     

Ni纳米管的电化学模板法制备及表征

本文采用一种简单而有效的电化学方法在硫酸铵体系中利用氧化铝模板(AAO)成功制备出规则有序的Ni的管状纳米阵列.使用这种方法可获得外径约为70nm,内径约为50nm的Ni纳米管.对所得的Ni纳米管进行了扫描电镜(SEM)、透射电镜(TEM)、选区电子衍射图(SAED)和X射线衍射(XRD)分析,结果表明:该方法制备的Ni纳米管高度有序,大小均一,其形貌受控于氧化铝模板的结构,外径与模板的孔径相等.