液氧中总烃含量的连续测定

基于红外法测定二氧化碳原理，采用连续氧化技术，确立了氧气中总烃含量的连续测定方法，测定范围为0～250×10     

连铸保护渣润滑行为的数学模拟

应用传热学和粘性流体力学原理，模拟探讨了连铸保护渣的润滑作用，分析了各种因素对铸坯所受摩擦力的影响，从而为评价保护渣的润滑作用，优化连铸工艺提供了理论依据。     

Isolation and characterization of a hexokinase mutant of Schwanniomyces castellii: Consequences on cell production in continuous culture

A mutant of Schwanniomyces castellii with reduced glucose phosphorylation and with practically no phosphorylation of fructose was investigated. Carbon catabolite represion of α-glucosidase and amylases was reduced. Repression of β-galactosidase was normal. We have compared in continuous culture this mutant strain with wild type and another previously described mutant. The relationship between the specific rate of glucose consumption (Qs) and residual glucose concentration (s) in an inverse mode, suggests that there may be two types of transport of glucose. Mutation at the phosphorylation level causes apparent modification of the kinetic parameters of glucose uptake rate. The consequence of mutation at the phosphorylation level on biomass production was discussed.     

On the optimal cooling strategy for variable‐speed continuous casting

In this paper, we consider the inverse problem of determining the optimal cooling parameters for continuous casting under changing casting speed. We rely on automatic differentiation to support different search methods for the parameter values that will minimize a given cost functional, which can include a variety of criteria: surface temperature evolution and variation, interface position, full solidification point. In the direct problem we use a fixed‐domain transformation to solve the corresponding free‐boundary problem to high accuracy. Numerical experiments are provided to illustrate and support the effectiveness of the present concept. Copyright © 2001 John Wiley & Sons, Ltd.     

Classifiers that approximate functions

A classifier system, XCSF, is introduced in which the predictionestimation mechanism is used to learn approximations to functions.The addition of weight vectors to the classifiers allowspiecewise-linear approximation, where the classifier'sprediction is calculated instead of being a fixed scalar. The weight vector and the classifier's condition co-adapt.Results on functions of up to six dimensions show high accuracy. The idea of calculating the prediction leads to the concept ofa generalized classifier in which the payoff prediction approximatesthe environmental payoff function over a subspace defined bythe classifier condition and an action restriction specified in theclassifier, permitting continuous-valued actions.     

连铸碱性中间包覆盖剂的实验室研究

本文介绍了包钢连铸中间包覆盖剂配方的设计思路及设计原则，并对所设计的碱性中间包覆盖剂的各种物化性能，测试方法作了介绍，表明这种碱笥覆盖剂保温性能好，同时具有较强的防止钢液二次氧化及吸收Ａ１２Ｏ３等非金属夹杂的能力，对中间包内衬及长水口侵蚀也较小。     

滑动层摩擦系数对道床板纵向力的影响分析

结合具体工程,研究了滑动层摩擦系数对道床板纵向受力的影响,综合考虑温度力、制动力、断轨力和断板力作用下道床板的受力情况,得出滑动层摩擦系数为0.2左右时道床板受力比较合理的结论。     

太原科技大学晋城校区规划及单体设计方案

针对太原科技大学晋城校区的主要规划设计构思进行阐述,提出了优化结构、弹性发展、生态规划的设计手法,在创造校区整体环境特色、完善校区功能设施等方面做出了有益的尝试.     

A modified short‐run type II continuous sampling plan

In this article, a modified continuous sampling of type II is provided for finite production runs. The suggested sampling plan revises the continuous sampling plan‐2 of Yang (1983). The proposed plan places no predetermined limit on the number of items to be inspected until the second defect is detected when in partial inspection mode. A similar derivation to that of Yang is used to find an approximation to the average outgoing quality of the modified continuous sampling plan‐2 in finite production runs. Some tables are provided to aid in the selection of the clearance number and sampling fraction when the production run length and an average outgoing quality limit are given. Copyright © 2002 John Wiley & Sons, Ltd.     

承钢板坯连铸机结晶器工艺参数优化的水模型研究

实验采用水模型法研究了承钢板坯连铸机结晶器工艺参数与流场的关系，探讨了结晶器宽度、拉速、水口侵入深度、水口侧中孔面积比对流场状况的影响趋势，并对工艺参数进行了优化。