船舶操纵非线性系统的鲁棒变结构控制

本文采用伪线性化变换将船舶操纵非线性系统近似地化为线性可控正则型，并对线性化系统设计了一种连续的变结构以提高整个闭环系统的鲁棒性。该方案用于限制水域中船舶的航向航迹纠编控制中，取得了预期的结果。     

天然高分子吸附剂研究Ⅱ．镍离子模板壳聚糖树脂的合成及特性

以镍离子为模板剂，合成了乙醇双环氧丙基醚交联的壳聚糖树脂，研究了其对Ｃｕ（Ⅱ）、Ｎｉ（Ⅱ）、Ｃｏ（Ⅱ）离子的吸附性能。结果表明，该法合成的树脂对Ｎｉ（Ⅱ）离子具有较强的“记忆”和“识别”能力，其对Ｃｕ（Ⅱ）、Ｎｉ（Ⅱ）、Ｃｏ（Ⅱ）的吸附量分别达２．２１、２．１３、１．４０ｍｍｏｌ／ｇ树脂。     

Facile synthesis of nitrogen and oxygen co-doped hierarchical porous carbon materials for high performance super capacitors

Journal of Porous Materials - Nitrogen and oxygen co-doped hierarchical porous carbons (NOPCs) is prepared by the pyrolysis of polyethylene glycol-200 (PEG) and triazine carbon forming agent (CFA)...     

依托数学建模竞赛,提高大学生综合素质——以常州工学院为例

数学建模竞赛是目前规模最大的全国性学科竞赛活动,受到越来越多的学校和学生的重视,近年来,参加比赛的学生人数逐年增加.文章首先分析了数学建模竞赛的特点以及其对大学生综合素质培养的促进作用,然后以常州工学院为例剖析了数学建模活动的现状,最后从教学体系、指导团队师资建设、竞赛激励制度等三方面对进一步推进数学建模竞赛给出了建议.     

电渣炉渣参数的优化选择

本文论述了电渣冶炼渣参数优化选择的理论与实践。大生产应用表明,在保证电渣钢质的同时,渣量可减少45％,电耗降低19.4％,具有较显著的经济效益。     

富勒型篦冷机的性能特点和技术改造

富勒型篦冷机具有急冷熟料、热回收效率高和冷却效率高等性能。自1985年引进富勒篦冷机设计和制造技术以来，我国的篦冷机技术已完成了第一代、第二代、茅三代的技术更新和发展历程。针对第二篦冷机一些固有的缺陷，巢湖铁道水泥厂采用第三代篦冷机技术，对原609S-819S／809S-1025S型第二代篦冷机进行了改造并获成功。改造4年来，篦冷机运行稳定，维修较少，经济效益明显。     

Preparation,characterization, and adsorption properties for metal ions of a novel chelating resin containing sulfoxide and diethylene glycol

A novel chelating resin containing sulfoxide and diethylene glycol, poly{4‐vinylbenzyl‐[2‐2‐(hydroxyethyl)ethoxyl]sulfoxide} (PVESO) was synthesized using chloromethylated polystyrene (PS‐Cl) as material. Its structure was characterized by elemental analysis, infrared spectra, and scanning electron microscopy (SEM). The adsorption capacities of the resin for Hg²⁺, Ag⁺, Cu²⁺, Zn²⁺, and Pb²⁺ at various pH values were determined. The maximum adsorption capacities for Hg²⁺ and Ag⁺ were 1.56 and 0.75 mmol g^?1 respectively. The resin had high selectivity for Hg²⁺ and Ag⁺ over the pH range 1.0–7.0. The adsorption capacities for Hg²⁺ and Ag⁺ under competitive condition were also determined by batch experiment method. In addition, the adsorption kinetics of the resin towards Hg²⁺ at different temperatures was also investigated. The results showed that the adsorption rate was governed by film diffusion at 20°C and 25°C, by particle diffusion at 30°C and 35°C. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 6054–6059, 2006     

高分子材料的微孔发泡方法

介绍了微孔发泡高分子材料的成型方法 ,成型原理和成型工艺及设备。     

Degradation of acrylonitrile–ammonium itaconate copolymers

Acrylonitrile–ammonium itaconate copolymers were prepared by H₂O/dimethyl formamide suspension polymerization technique. Differential scanning calorimetry results of the degradation of acrylonitrile–ammonium itaconate copolymers in air are presented. The apparent activation energy of degradation of the copolymer was calculated using the Kissinger method. Effects of copolymerization conditions on the apparent activation energy of copolymer were studied. Increasing the dimethyl formamide concentration in the solvent mixture leads to a rapid increase in the degradation apparent activation energy of acrylonitrile–ammonium itaconate copolymer. The value of the degradation apparent activation energy of the copolymer synthesized in dimethyl formamide solvent increases up to 168.3 kJ mol^?1. The apparent activation energy decreases quickly along with an increase in ammonium itaconate concentration, and this change becomes less prominent as the weight ratio of ammonium itaconate/acrylonitrile goes beyond 6/94, ΔE_a = 89.4 ± 2.0 kJ mol^?1. The apparent activation energy shows a trend of increase with increasing copolymerization temperature. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 1708–1711, 2005     

网络舆论意见领袖特征研究

为了发现网络舆论的意见领袖,利用从网络中采集到的基本数据,构造网络话题参与者的"属性矩阵",提出意见领袖综合评价算法,以排序方式列出意见领袖.通过实际示例说明应用该评价算法的基本步骤和计算方法.该模型具有一定的理论指导意义和实际使用价值.