水污染控制模式选择的研究

水污染控制模式有三种，即浓度控制，总量控制和双轨制控制，总量控制又包括容量总量控制，目标总量控制和行业总量控制三种类型，针对不同情况选用与之相适应的污染控制模式，是实现经济上合理，技术上可行，效果上显著地控制水污染的前提，提出了选择水污染控制模式的六个依据和技术路线，并将之应用于图们江流域水污染控制研究中，取得较为满意的效果。     

高速公路汽车目标检测

用动态图像序列分析减背景方法检测出了高速公路上的汽车目标，得到流量，速度等参数。初始背景用卡尔曼滤波更新，能自适应环境光的漫变，给出了目标检测跟踪算法的及实现算法ＴＭＳ３２０Ｃ２５脱机硬件系统结构。跟踪实际交通图像结果表明，算法性能良好，处理速度为－３４次／ｓ，满足了交通管理的实时性要求。     

猪血及水解母液中氨基酸含量的高效液相色谱分析

以Pico·Tag氨基酸分析法测定了猪血及水解母液中氨基酸含量，猪血中必需氨基酸含量占44．3％，支／芳比值为2.79，有很高的营养价值，其母液中必需氨基酸含量为37．8％，且品种齐全，具有一定的应用价值。样品测定相对标准偏差小于4％。     

未知掺杂MOS结构少子产生寿命空间分布研究

本文采用线性扫描法测定未知掺杂ＭＯＳ结构少子产生寿命空间分布，结果表明，本方法是简单准确的。     

模拟电路教学浅谈

模拟电路是一门重要的专业基础课,但学生学习起来有不少的困难。教师应改进教学方法和手段,抓住主要教学内容,使学生的学习效率得到提高。     

为自主创新提供专利技术支撑

全国第一家为企业自主创新提供专利技术支撑和增值服务的平台“中国企业专利信息服务平台-佰腾网”（www.5ipatent.com）于今年2月份在江苏常州正式开通,在短短两个月时间内与全国各地12家科技主管部门、科技中介机构和其他专业机构、商业代理签订了合作协议,业务迅速拓展到江苏、浙江、福建、山东、新疆等地,目前已经建成区域性专利专题数据库12家,企业个性化专利数据库72个,服务企业600多家,数据库信息总量达到1900多万条.     

解旅行商问题的混沌蚁群算法

利用混沌运动的遍历性、随机性和规律性等特点,提出了一种求解旅行商问题的混沌蚁群(CACO)算法.该算法的思想是采用混沌初始化进行改善个体质量和利用混沌扰动避免搜索过程陷入局部极值.与模拟退火算法、标准遗传算法进行比较,仿真结果表明该方法是一种简单有效的算法.     

Heterogeneity,nonlinearity and endogenous market volatility

This paper aims to contribute to the literature on the explanatory power of behavior models with heterogeneous agents. The authors present a new nonlinear structural stock market model which is a nonlinear deterministic process buffeted by dynamic noise. An exogenous noise is introduced to the model with the assumption of IID normal innovations of the fundamental value in order to investigate how noisy dynamics interacts with deterministic process. The market is composed of two typical trader types: the rational fundamentalists and the boundedly rational traders governed by greed and fear. The interaction between noise and deterministic element determines the evolution process of the system as key parameters are changed. The authors find the model is able to generate time series that exhibit dynamical and statistical properties closely resembling those of the S&P500 index, such as volatility clustering, fat tails (leptokurtosis), autocorrelation in square and absolute return, larger amplitude, crashes and bubbles. The authors also investigate the nonlinear dependence structure in our data. The results indicate that the GARCH-type model cannot completely account for all nonlinearity in our simulated market, which is thus consistent with the results from real markets. It seems that the nonlinear structural model is more powerful to give a satisfied explanation to market behavior than the traditional stochastic approach.     

Atomic-scale segregation behavior of Sn/Ti and O at Σ3[11¯0](111) grain boundary in niobium

First-principle calculation was performed to illustrate the atomic arrangement and segregation behavior of Sn/Ti and O in View the MathML source grain boundary, and the interaction of oxygen interstitials with Sn/Ti atoms on the grain boundary was studied. The analyses on the segregation energies and geometric positions, and the electron densities show that Sn, Ti and O atoms segregate at the Σ3 grain boundary. And the preferred segregation sites of the impurities at View the MathML source were determined. When Sn segregates at grain boundary plane, the O atom prefers to the bulk-like site and shows no segregation tendency at grain boundary, whereas the segregated Ti atom can slightly enhance oxygen segregation at the grain boundary.     

前驱体碳化复合等离子熔覆涂层

以钛铁粉、铬粉、铁粉和碳的前驱体（蔗糖）等为原料,通过前驱体碳化复合技术制备了碳化复合粉,并利用等离子熔覆技术在Q235钢表面制备了Fe-Cr-C和Fe-Cr-C-Ti涂层.采用X射线衍射和扫描电镜对涂层的相组成和显微组织结构进行了分析.结果表明:Fe-Cr-C涂层由（Cr,Fe）₇C₃初生碳化物和菊花瓣状分布共晶碳化物（Cr,Fe）₇C₃与奥氏体组织组成;Fe-Cr-C-Ti涂层由原位合成的TiC相和（Cr,Fe）₇C₃共晶相与奥氏体相构成.这两种涂层与基体之间都是冶金结合.涂层中碳化物TiC的体积分数呈现梯度分布,并且涂层的熔合区和中部区域TiC颗粒形状多为等轴状颗粒,涂层的表层区域部分TiC颗粒多为树枝晶颗粒.与Fe-Cr-C涂层相比较,Fe-Cr-C-Ti涂层的抗开裂性更好.Fe-Cr-C和Fe-Cr-C-Ti两涂层的平均显微硬度约是750HV_0.2,是基体金属的3.2倍,从涂层表面到熔合区相差不大.