泡沫分离技术的研究——Ⅱ.泡沫分离塔的设计放大方法

根据对泡沫分离塔鼓泡区和逆流泡沫区内气-液两相流的分析,以及对表面活性剂在气-液表面吸附传质的研究,提出了一套稳态操作条件下的泡沫分离塔的设计和放大方法,并设计了一套中试规模的恒径泡沫分离塔。     

Modeling expert forecasting knowledge for incorporation into expert systems

The use of continuous multivariate models to represent experts' knowledge of relations among a set of variables is reviewed. Such knowledge models can be incorporated into expert systems, complementing contingent rules, especially when representing experts' knowledge of functional relations among entities in noisy domains. Past work has most commonly involved linear averaging models in static domains, although nonlinear models and dynamic domains are also possible. Detecting errors in continuous multivariate models requires a different approach from detecting errors in collections of if-then rules. Methods for eliciting expert knowledge include modeling judgments made in real or hypothetical situations and using expert's self-insight directly to assist in construction of the model. Procedures for managing each of these methods have been computerized and could be included as elicitation tools in expert system building environments.     

黑盒测试技术在LBPACK研制中的应用

本文论述了黑盒测试对控制系统CAD软件基础库的重要性,以LBPACK为对象进行了黑盒测试,并将其测试结果与LINPACK和MATLAB进行了比较。结果表明,本文所提出的黑盒测试技术是可行的,在保证软件的质量和评价其水平方面起到了重要的作用。     

MX线性链上荷电扭折孤子陷获的电子束缚态

本文从 Baeriswl-Bishop 模型出发,研究了线性的 MX 链(M=过渡金属离子,X=卤素离子)的荷电扭折孤子所陷获的电子束缚态.结果表明,在 Peierls 能隙中除了已知的中央能隙态(midgap state)外还存在一个新的浅束缚态.对此浅束缚态与光吸收实验的可能联系,作了简单讨论.     

线性规划最好主元法的实验报告

该文对求解线性规划一种新的快速算法，称为最好主元法，在计算机上通过了数千个实例的试算表明，迭代次数不超过变量维数与约束个数之和，是一个很有价值的实用算法．     

一个森林资源档案管理程序的设计及其试用情况分析

本文介绍了一个应用于森林资源档案管理的计算机程序的设计思想和试用情况分析。这个程序的最大特点是它的方便性和安全性。软件设计使该程序不仅完全适合一个不懂计算机的用户使用而且可以避免用户由于心理因素引起的操作失误。该程序解决了森林统计表过宽难打印的问题,使表格可一次打出,不必两次打印再粘贴。文中还介绍了这一软件在克什克腾旗森林资源统计中应用后情况分析。     

无限矩形波导线阵在平行板系统中的导纳

本文将平行板系统中无限矩形波导线阵等效成平行板波导在自由空间的边值问题。用作者给出的互导纳公式,很方便地求出阵中导纳和驻波比,并与模拟器实验结果甚为符合。     

The flat maximum effect and linear scoring models for prediction

Our paper challenges the conventional wisdom that the flat maximum inflicts the ‘curse of insensitivity’ on the modelling of judgement and decision processes. In particular, we argue that this widely demonstrated failure on the part of conventional statistical methods to differentiate between competing models has a useful role to play in the development of accessible and economical applied systems, since it allows a low cost choice between systems which vary in their cognitive demands on the user and in their ease of development and implementation. To illustrate our thesis, we take two recent applications of linear scoring models used for credit scoring and for the prediction of sudden infant death. The paper discusses the nature and determinants of the flat maximum as well as its role in applied cognition. Other sections mention certain unanswered questions about the development of linear scoring models and briefly describe competing formulations for prediction.     

两相流重粒子运动的非线性系统方程组的计算

本文阐述两相流重粒子运动的非线性常微分方程组实际上代表一个系统的方程组,讨论了常用的解法如Runge—Kutta法等和它的结果。本文采取变步长用有限分析法把非线性项线性化,构造一个迭代序列,逐步迭代修正非线性项,求解一般形式的非线性系统方程;并验证迭代逼近解的收缩运算条件;给出计算重粒子运动轨迹和速度的算例,结果分析和说明应用的实例。     

食双星BH Vir的测光解和黑子模型

对１９９１年４月和５月ＢＨ Ｖｉｒ的ＢＶ两色光电测光资料进行了分析，利用Ｗｉｌｓｏｎ－Ｄｅｖｉｎｎｙ带黑子的解轨程序对其进行了轨参量和黑子参量求解，结果表明：利用在次子星上加一个圆形低温黑子活动区的模型很好地拟合了实测光变曲线，同时解出了黑子的特征参量，即：黑子的温度、面积和位置。