气相色谱中保留指数随温度变化规律的研究

根据保留指数随温度变化的关系式得出保留指数随温度变化的三种规律,运用气相色谱实验获得了较好的验证;并从色谱热力学函数分析了保留指数随温度变化规律的主要原因是由于在色谱分离过程中不同的熵变和焓变所造成的。     

加速腈纶国产化是增加企业效益的有效途径

介绍了金阳腈纶厂ＮａＳＣＮ二步法生产腈纶的工艺和质量指标，并与国内近年来引进的腈纶装置生产情况进行了比较。说明我国只有加速腈纶国产化才是增加企业效益的有效途径。     

纳米白炭黑的表面改性及其在氯丁橡胶中的应用

研究纳米白炭黑经硅烷偶联剂(Si-75)湿法改性后对氯丁橡胶抗疲劳性能的影响，并对改性剂的用量、改性工艺条件进行了优化。实验结果表明：适当改性后的纳米白炭黑可显著提高氯丁橡胶的抗撕裂和抗疲劳性能。     

聚酰胺66的复配阻燃研究

采用35％磷-溴-锑复配阻燃体系对聚酰胺66进行阻燃，极限氧指数可提高到33．6％，达到UL94-V0级(1．6mm)，且无熔融滴落。阻燃体系的添加会导致聚酰胺66力学性能的下降，但与无机阻燃体系相比较，磷-溴-锑复配阻燃体系对聚酰胺66的力学性能影响较小。采用扫描电镜观察阻燃剂在聚酰胺66中的分散效果，发现分散均匀的体系，在水中或者在110℃的析出实验条件下，阻燃剂的析出量很小，可以维持较长时间的阻燃效果。     

水煤浆厂生产现状与发展

总结了目前国内水煤浆生产厂的类型和规模,介绍了水煤浆产品的品种、质量特征以及水煤浆厂的生产技术经济指标,阐述了我国水煤浆厂生产的现状与发展趋势。     

基于微结构指标响应曲面法的固化盐渍土力学特性分析

固化土力学强度指标与固化土结构变化的关系是盐渍土特性研究中的重要问题。选取颗粒粒度分维D_(ps)、颗粒定向分维D_(di)、等效直径D_e为试验因素,利用响应曲面法进行试验。响应曲面模型可以对固化土的力学性能指标进行分析和预测,利用该模型研究石灰固化盐渍土的力学强度指标与最优微结构参数之间的关系,并进行了验证。结果表明,固化土微结构最优指标是粒度分维D_(ps)为0.8、颗粒定向分维D_(di)为0.93、等效直径D_e为1.75时,固化土无侧限抗压强度q达到1.636 MPa,与实测值仅相差0.038 MPa;黏聚力c为456.7 k Pa,与实测值完全一致;内摩擦角为39.6°,与实测值仅相差0.2°。该模型为探讨各类固化盐渍土物理化学指标、各掺加料比例及固化土微结构之间相互关系提供了借鉴和依据。     

Modularized design for cooperative control and plug-and-play operation of networked heterogeneous systems

In this paper, a cooperative control analysis and design method is investigated for heterogeneous dynamical systems that may be of arbitrary relative degree or nonminimum-phase or both. To achieve consensus or cooperative stability, a negative value of input-feedforward passivity index is used to accommodate and analyze such systems, and the magnitude of the index value is also used as the impact coefficient to quantify the impacts of heterogeneous dynamics of these systems on their networked operations. Physical-system-level designs are explicitly carried out to make individual linear and nonlinear systems (which are either feedback linearizable or nonminimum phase of certain form) become passivity-short and to embed one pure integrator into their input–output dynamics. The network-level distributed control can simply be chosen without any knowledge of the heterogeneous dynamics but with only information of an upper bound on their impact coefficients. It is shown, using the impact equivalence principle, that these controls separately designed but implemented together always ensure either local or global consensus and that a global non-trivial consensus emerges if and only if the information network has at least one globally reachable node or is varying but cumulatively connected. The proposed methodology of fully modularized designs unravels complexity of analyzing and designing cyber–physical systems and enables their plug-and-play into networked operations.     

Reliability-based robust design optimization: A general methodology using genetic algorithm

In this paper, we present an improved general methodology including four stages to design robust and reliable products under uncertainties. First, as the formulation stage, we consider reliability and robustness simultaneously to propose the new formulation of reliability-based robust design optimization (RBRDO) problems. In order to generate reliable and robust Pareto-optimal solutions, the combination of genetic algorithm with reliability assessment loop based on the performance measure approach is applied as the second stage. Next, we develop two criteria to select a solution from obtained Pareto-optimal set to achieve the best possible implementation. Finally, the result verification is performed with Monte Carlo Simulations and also the quality improvement during manufacturing process is considered by identifying and controlling the critical variables. The effectiveness and applicability of this new proposed methodology is demonstrated through a case study.     

炼石水泥厂2300t/d熟料生产线的达产达标

福建水泥股份有限公司炼石水泥厂2300t／d生产线(即#4窑)由南京水泥工业设计研究院开发设计，2000年11月动工，建设周期为10个月，2001年9月即实现3d达标考核该线大量采用国产化设备，烧成系统、窑头喷煤管、煤磨系统等应用南京院专有专利技术2002年共生产熟料71．54万t，28d强度平均达57.3MPa，全年运转率达83．6％，全面实现了达产达标。     

基于非负矩阵分解的水量分配方案后评价

提出了水量分配方案后评价指标体系,建立了基于非负矩阵分解的水量分配方案后评价模型,并以1983年国务院批复的引滦水量分配方案为研究对象进行了水量分配方案诊断式后评价。该方法利用非负矩阵分解算法将指标矩阵最大程度分解为基向量和权向量,根据权向量元素的数值对水量分配方案进行评级,根据基向量元素的数值判断评价指标的实施状况。通过对引滦水量分配方案质量、实施过程、实施效果和可持续性的调查分析,得出方案综合后评价结果为优,但在来用水可持续性、对水环境影响及水质目标保证率等方面需加以改进。评价结果表明,基于非负矩阵分解原理的后评价方法评价效果较好,可为水量分配方案等项目的后评价提供科学依据。