含酰胺基团氯化稀土配合物的合成和表征

合成了未见文献报道的氯化稀土丙烯胺配合物（ＬｎＣｌ３·３ＰＡ），剖析了ＬｎＣｌ３·３ＰＡ和聚（苯乙烯－丙烯酰胺）负勒氯化稀土配合物（ＳＡＡ·ＬｎＣｌ３）的红外光谱和电子能谱。结果表明，含酰胺基团的配体均通过与羰基氧与稀土离子配位。     

2种制造/安装偏差对高速车辆方向稳定性的影响

为改善高速车辆的方向稳定性,研究了左右轴距不等及车身纵轴线与前后车轴中点连线不重合的2种制造/安装偏差,及其导致车辆高速行驶时出现跑偏现象的机理及相关影响.建立了这2种制造/安装偏差导致高速车辆发生跑偏运动的动力学模型,推导出其状态方程,并通过数值仿真定量解析了这2种制造/安装偏差对车辆高速方向稳定性的影响.研究结果表...     

Distributed modeling of the beginning and ending dates and durations of limited temperatures over the rugged terrain of Chongqing

A physically based empirical model was established for the beginning and ending dates (BED) of limited temperatures.Data used were daily mean temperatures from 34 conventional stations in the Chongqing region,measured from 1961 to 2000.Using this model in combination with the distributed modeling results of monthly mean temperatures,we developed a method for creating a distributed simulation of the BED and durations of limited temperatures in the rugged terrain of Chongqing.Spatial distribution maps were generated at a resolution of 100×100 m for the BED and durations of the limited temperatures of 0,10,15 and 20.Simulations suggest that the distributed model is able to successfully reveal the macroscopic trends and local distributions.For the modeled BED,the mean absolute bias error is 0.6-2.4 d.Cross-validation and case-year tests show mean absolute bias errors of 1.3-2.8 d and 0.7-2.5 d,respectively.Comparison shows that the simulation results are consistent with the field investigations.This implies that the simulations are as good as observations,thus providing a viable technique for simulating mountainous heat resources using conventional meteorological data.     

PI—B型感光材料分辨率测定仪

阐述了一种新型感光材料分辨率测定仪的原理，重点讨论了仪器参数的选择和控制显示系统的原理和组成，并给出了装调结果，该仪器光学分辨率高，检测速度快，自动化程度高，新型的液晶汉字显示使各种操作完全并幕菜单选择完成。     

关于普通高校面向21世纪深化教学改革提高人才培养质量的若干思考

在邓小平理论指导下．江苏高校教学工作取得了巨大成绩，积累了丰富经验，但也面临着挑战与机遇、困难与希望。本文从江苏实际出发，立足于培养面向21世纪的高素质的创造性人才，提出了十年左右教学改革的目标、思路和主要对策措施．到2010年年基本实现教学工作现代化。     

一种家猪基因组PCR—RAPD反应体系的建立

以家猪血样为ＤＮＡ提取材料 ，建立了用改进方法提取ＤＮＡ为模板进行ＰＣＲ－ＲＡＰ 分析的最佳条件，获得稳定而理想的ＰＣＲ－ＲＡＰＤ扩增结果。     

A 65-nm 1-Gb NOR floating-gate flash memory with less than 50-ns access time

This paper presents a 65-nm 1-Gb NOR-type floating-gate flash memory, in which the cell device and chip circuit are developed and optimized. In order to solve the speed problem of giga-level NOR flash in the deep submicron process, the models of long bit-line and word-line are first given, by which the capacitive and resistive loads could be estimated. Based on that, the read path and key modules are optimized to enhance the chip access property and reliability. With the measurement results, the flash memory cell presents good endurance and retention properties, and the macro is operated with 1-las/byte program speed and less than 50-ns read time under 3.3 V supply.     

钢铁企业轨梁万能生产线仿真建模

针对钢铁企业的轨梁万能生产线在生产中存在的新产品调试生产周期过长、生产瓶颈不易诊断、设备利用率低等问题,分析了钢铁企业轨梁万能生产线不同于传统离散制造以及流程制造过程的特点,在此基础上建立了半连续半离散的轨梁万能生产线的Petri网模型和各设备的仿真组件模型,开发了轨梁万能生产线的仿真系统,并用一个实际的工程应用案例,验证了该仿真模型及其系统的可操作性以及有效性,达到了提高生产现场轨梁万能生产线的生产效率和产能的目的.     

受压加劲板稳定承载力计算方法比较

对新版《中国公路钢桥规范(征求意见稿)》和国外钢桥规范的受压加劲板稳定承载力计算方法进行比较,以实例说明几种规范的整体稳定系数和局部稳定系数的差异.研究结果显示:中国公路钢桥规范的整体稳定四条柱子曲线与欧洲规范a、b、c、d曲线相接近,局部稳定系数取值小于其它规范对承载力的折减,计算结果相对保守.