A New Systematic Approach for Building State Equations

In this paper, the concept of hybrid variables is introduced. First hybrid equations are built and then,state equations are obtained by eliminating the redundant hybrid variables in the hybrid equations.     

Testing Study on Hydraulic Torque Converter for Car

A test bed with computer control for hydraulic torque converter test is built up. The structure and principle of the test bed are introduced. The performance characteristic of torque converter for a CVT car is studied, and the mathematic model of the torque converter is established based on test results, which lays a foundation for the exploitation of automatic transmission car with hydraulic torque converter.     

Study on the Realizing Meathod of the High Precision Real-Time Detection of the Concentration of Free State Chlorine

A high precision detecting method for the concentration of free state chlorine is realized in this paper, which is based on the photoeffect,compton scattering,Lambert-Beer theorem,using a novel SMM double-wavelength,double-beam spectrophotometry.     

第三方食品检测机构特点及其食品专业实习生需求分析

探讨第三方食品检测机构实习生需求及其原因,为定向输送食品专业人才提供参考。以广东和广西主要城市的第三方食品检测机构实习生招聘信息为基础进行计算分析。结果表明,广州和深圳聚集有较多的第三方食品检测机构,但以小型民营企业数量居多;多数第三方食品检测机构招聘实习期为3个月以上的食品专业大专或本科实习生,并提供实习薪酬;大型第三方食品检测机构招聘数量较多的实习岗位和实习生,提供较好的实习待遇,但实习期较长。可见,广州和深圳的大型第三方食品检测机构是校企合作定向输送食品专业人才的重要方向。     

Testing and modeling studies on creep characters of supports for tunnel using nonlinear constitutive model

Creep characters of tunnel supports structure is analyzed according to triaxial creep test of concrete specimen of deep tunnel supports structure adopting MTS815 hydraulic servo system. The creep parameters of nonlinear creep model are presented based oncreep curve. The finite element numerical model has been established considering tunnel construction process, creep characters of surrounding rock and support structure. The displacement characteristics, the effective stress and the maximum shear stress in different position in primary support and second lining are obtained through creep characters analysis of surrounding rock and supports structure. The features of displacement and stress dependent time of tunnel supports has visible difference comparing with discard creep effect and calculation displacement and practical monitoring results is basic concordance. The creep characters of surrounding rock and tunnel supports should be considered for deep tunnel.     

A Study on the Mathematical Models for Two Dimensional Guillotine Cullting-stock

Based on the analysis and study on some existed models for two-dimensional Guillotine Cutting-Stock problem, it is pointed out that some kinds of the models may miss some good cutting patterns,and some may result in inadequate solutions because of only considering the patterns with the smallest waste. A kind of revised two-dimensional cutting-stock models are developed,which transform the two-dimensional problem into the one-dimensional one using the dimension-decreasing heuristic method and whose initial patterns are considered comprehensively. In this kind of models, not only the least waste,but also the other constraints,such as the demands and the relative area of the order plates are considered.     

芝麻种子老化处理生理特性变化及种子活力适宜检测方法研究

以4种经过人工老化处理不同类型（单秆型白芝麻、分枝型白芝麻、单秆型黑麻和分枝型黑芝麻）芝麻种子为试验材料,采用标准发芽试验、电导率测定、MDA含量测定、POD活性测定和TTC还原量等方法进行种子活力测定,研究老化处理对芝麻种子生理生化的影响,并与模拟田间出苗率进行相关性分析,以确定不同类型芝麻种子活力检测的适宜方法。结果表明：芝麻种子老化过程中,发芽率、发芽势、发芽指数、活力指数、TTC还原量和POD活性逐渐下降,MDA含量逐渐增加,电导率变化趋势材料间不一致;不同种质的抗老化能力存在差异。单秆型白芝麻种子活力检测的适宜方法为发芽率和电导率测定;分枝型白芝麻种子活力检测的适宜方法是发芽率、电导率测定、MDA含量测定、POD活性测定和TTC还原量测定;单秆型黑芝麻种子活力检测的适宜方法是发芽率和POD活性测定;分枝型黑芝麻种子活力检测的适宜方法是发芽率和TTC还原量测定。芝麻在42～43℃、100％RH条件下,人工老化处理的最佳时间为72 h。     

基于ArcGIS的台州市环境功能区划研究——以声环境功能区划为例

文章以台州声环境功能区划为例，从基础资料空间数据库的建立、要素类的制作及空间要素获取、专题图制作等方面，详细探讨了ArcGIS在整个区划过程中的应用。在环境功能区划中，利用ArcGIS的个人GeoDatabase数据优势，分类建立了基础资料的空间数据库，更加有效地管理基础资料；通过ArcGIS强大的空间分析功能，获得了大量的图形数据；利用ArcGIS强大的图形功能及丰富多样的数据符号化方法，绘制了不同类型的专题图。     

A Study on the Social Sateguard System for Centralized Processing the Flammable Wastes as Substitute Fuel in Cementklin

The paper proposes to use the synthesis effect of commercial,technical and eraluational subsystems to establish the operational model of centralized process of flammable harmful wastes as substitute fuel in cementklin,and points out the method to establish social safeguard system on the basis of developing, maituining, protesting functions, and provide demonstration, conception and design for converting harmful wastes into harmless and resourceful sources in proctice.