福州正大广场主楼底板大体积混凝土施工技术

大体积混凝土由于体积大、水化热多，混凝土内部温差产生温度应力而导致裂缝产生，严重时会影响结构安全。本文比较详细介绍了底板大体积混凝土施工技术的工艺过程以及如何进行有效的质量控制。     

脉冲MOS结构少子产生寿命的统一表征

本文提出了一种采用脉冲ＭＯＳ结构测量少子产生寿命的统一表征谱方法，此方法基于任何一种收敛弛豫过程均可以转换成一种衰减的指数函数的思想，应用关以样原理获得脉冲ＭＯＳ结构瞬态电容差值谱，从谱图中我们可以直接得到关于少子产生寿命信息。本文综合了众多脉冲ＭＯＳ结构测量少子产生寿命的物理模型，分析了不同模型之间的精细差别。     

Measuring streaking rates of an Al-Zn alloy using a difference imaging technique

An in situ difference imaging technique was used to measure the linear- and area-velocity of streaking corrosion on aluminum alloy AA7075 in chloride solutions. These velocities are difficult to assess by direct observations. Both the linear and area velocities of corrosion streaks strongly depended on the concentration of the chloride solutions. The area velocity decreased at higher chloride concentrations, whereas linear velocity increased. The differences in dependencies on chloride were considered to result from changes in the concentration of dissolved oxygen in the solutions.     

井内及井壁瞬态温度的确定

根据能量守恒原理,利用半瞬态传热近似解法,考虑流动压降生热分别导出了钻井液循环期间,钻柱内和环空钻井液温度分布的解析解,以及钻井液停止循环期间井内钻井液温度分布的解析解,然后应用数值差分法求得了近井壁地层的温度分布。利用此方法,可以求得任意时刻井内温度、井壁温度随井深的分布,任意时刻、任意井深处井壁温度的径向分布,任意点温度随时间的变化。     

The Grade Difference Format and MGM^p （1,n） Optimization Model

There are some applications that need to use the gray system techniques in distributed computing, in the basis of the grade difference format, MGMp （1, n） model is proposed and some precision grade difference formats are obtained. Their relations and the mathematics＇ mechanism are discussed. The error will be interjected to them. In the cases of absolute and comparative error, the gray model, which is a new gray GMGp （1,n） model, is expounded and discussed. The models have nice anti-interference; the example manifests that the model has a good effect.     

淡化界限——工业建筑设计中的新趋势

文章通过对工业建筑与民用建筑的界限日趋淡化这一现象进行了分析、探讨，论述了此现象产生的原因，进而总结了工业建筑设计的一些规律和特点。     

Asymptotic properties of solutions to discrete Coulomb equations

We construct two finite-difference models for the Coulomb differential equation which arises in the quantum mechanics analysis of the scattering of two charged point particles. These difference equations correspond to the standard and Mickens-Ramadhani schemes for the Coulomb equation. Our major goal is to determine the first two terms in the asymptotic solutions and compare them to the corresponding solutions of the Coulomb differential equation. In particular, the form of the anomalous phase term is examined.     

遥测自动气象站数据的分析研究及对传感技术的要求

对大兴安岭的林火气象遥测自动站网试运行期间所获得的数据进行了抽样研究，以期对遥测自动气象站系统及传感器的研制、改进和为日后器件的更新提供技术参考依据．     

Time Compact High Order Difference Methods for Wave Propagation, 2D

In earlier papers we have constructed difference methods that are fourth-order accurate both in space and time for wave propagation problems. The analysis and numerical experiments have been limited to one-dimensional problems. In this paper we extend the construction and the analysis to two space dimensions, and present numerical experiments for acoustic problems in discontinuous media.