厌氧法处理高浓度硫酸盐有机工业废水的研究

本文对硫酸盐还原菌与产甲烷菌的基质竞争以及硫酸盐还原作用在厌氧处理过程中的消极影响进行了讨论 ,分析了高硫酸盐有机工业废水厌氧处理的途径。     

一类四阶非线性常微分方程的两点边值问题解的存在性与唯一性

本文利用Hammerstein型积分算子和上下解方法,研究了一类四阶非线性常微分方程的两点边值问题     

飞秒化学与盐类水解反应机理的假设

以飞秒化学思想为指导,以酸碱质子理论为依据,探索盐类水解反应的机理,有助于建立盐类水解的新概念。     

Re-colouring the Intensity-Based Bootstrap for Point Processes

Abstract

A method for obtaining bootstrapping replicates for one-dimensional point processes is presented. The method involves estimating the conditional intensity of the process and computing residuals. The residuals are bootstrapped using a block bootstrap and used, together with the conditional intensity, to define the bootstrap realizations. The method is applied to the estimation of the cross-intensity function for data arising from a reaction time experiment.     

多媒体技术在连串反应动力学教学中的应用

利用Matlab语言中Simulink工具 ,开发了连串反应动力学过程动态模拟多媒体功能模块 ,并将其应用于教学中 ,效果良好。     

Dimensions and design criteria for developing training reaction evaluations

Although there is research on training program evaluation, there is little systematic research on the design, development and use of training reaction evaluations. In order to obtain meaningful information from a program evaluation, evaluation professionals must be rigorous in the design and development of all aspects of an evaluation study, including instrumentation. The purposes of the study were to classify the dimensions of information sought using reaction evaluations and to establish design criteria for developing training reaction instruments. There were three major phases of the study: (1) classification of the dimensions and questionnaire design criteria used in reaction evaluations; (2) validation of the classified dimensions and the questionnaire design criteria by subject matter experts; and (3) assessment of a sample of training reaction instruments currently used in training programs in US corporations. The research findings were: eleven dimensions for reaction evaluation were identified and classified by purpose. Five overall design criteria, each consisting of several sub-criteria, were judged important in the design of reactionnaires. These include: introduction and directions; question format; question construction; questionnaire layout; and data analysis. It was concluded that a well-designed training reaction instrument integrates the proper application of design criteria with appropriate reaction dimensions. Most training reaction instruments used by US corporations consisted of questions representing only a few dimensions. The instruments varied in form and length. Few of them properly utilized the established questionnaire design criteria.     

T-optimum designs for discrimination between two multiresponse dynamic models

Summary.  The paper is concerned with a problem of finding an optimum experimental design for discriminating between two rival multiresponse models. The criterion of optimality that we use is based on the sum of squares of deviations between the models and picks up the design points for which the divergence is maximum. An important part of our criterion is an additional vector of experimental conditions, which may affect the design. We give the necessary conditions for the design and the additional parameters of the experiment to be optimum, we present the algorithm for the numerical optimization procedure and we show the relevance of these methods to dynamic systems, especially to chemical kinetic models.     

化学反应工程重点课程建设探讨

化学反应工程是化工类学生的专业基础课,对于培养学生的化学反应工程基础、强化工程分析能力具有十分重要的作用。该课程建设采取加强教材建设与实验教学、通过启发式引导型授课、增设交流研讨课培养学生学习兴趣、采用开闭卷结合的考试方式等方法,提高课程的教学效果。     

Testing the Normality Assumption in the Tobit Model

This paper examines a number of statistics that have been proposed to test the normality assumption in the tobit (censored regression) model. It argues that a number of commonly proposed statistics can be interpreted as different versions of the Lagrange multiplier, or score, test for a common null hypothesis. This observation is useful in examining the Monte Carlo results presented in the paper. The Monte Carlo results suggest that the computational convenience of a number of statistics is obtained at the cost of poor finite sample performance under the null hypothesis.     

不同类型绩效考核对员工考核反应的差异性影响——考核目的视角下的研究

本文旨在探讨不同类型绩效考核对员工考核反应(Appraisal Reaction)造成的差异性影响。根据考核的两种基本目的(发展型和评估型),将绩效考核划分为交易型、承诺型、合作型和放任型四种类型。通过对武汉市308名企业员工的调查发现,在不同类型的绩效考核下,员工对考核的直接反应和间接反应都有显著性差异。整体而言,在合作型绩效考核下,员工的考核公平感会表现得更高,任务绩效也会更好;在放任型绩效考核下,员工的考核满意度最低。进一步的协方差分析和多变量方差分析也基本证实了该结果。