浅谈燃气采暖热水炉的概念及其检验标准

从中国加入世贸组织引起燃气行业标准改革入手，引出燃气采暖热水炉的概念，燃气采暖热水炉标准的编写势在必行，并阐述了燃气采暖热水炉的新旧产品检验标准内容要求的不同之处。     

网上CAI系统技术

本文在总结网上CAI已有成果的基础上，概述了未未网上CAI的特点，并提出了网上CAI系统设计的一些想法，指出了尚待研究的一些问题。     

百色起义纪念馆馆舍规划设计

通过对百色起义纪念馆所处环境的分析，提出建设百色市历史文化长廊的规划设想，确定“一轴线，二核心，一序列”的规划结构，在此基础上，介绍了具有强烈时代感和个性特征的百色起义纪念馆馆舍的规划设计。     

Catastrophe mechanism and classification of discontinuity behavior in thermal science (II)

The catastrophe mechanisms of thermal performance characteristics of the firebox gas combustion system were analyzed from the viewpoint of catastrophe theory. The mathematical models of cusp catastrophe were established. The relationship between the thermal performance characteristics and the changing of system control variables was studied. The cusp catastrophe mechanisms of typical performance characteristics, such as kicking and lagging, and those of transition from quenching to igniting were explained. It was illustrated that discontinuity behavior of thermal systems with an “S” motion feature curve and lagging feature may be equivalently classified according to the topology of cusp catastrophe, influenced by two groups of independent control variables.     

Two methods to solve the ionospheric electron concentration horizontal gradient at Chongqing

The electron concentration horizontal gradient vector of the ionosphere and its south-north and east-west components over Chongqing station are analyzed and calculated, using the first approximation, time correlation and space correlation and another approach introduced. And then, the validity of the two methods is analyzed and compared. Foundation item: Supported by the National Natural Science Foundation of China (69571020) and the Research Fund for the Doctoral Program of Higher Education (RFDP1999048602) Biography: Chong Yan-wen(1972-), male, Ph. D. candidate, research direction: ionospheric modeling and inversion.     

Nonsingularity of the combinations of two orthogonal projectors

The invertibility of combinations of two orthogonal projectors is researched by using the CS-decomposition of matrices and properties of orthogonal projectors. The Moore-Penrose inverse of the combinations is presented under some special conditions.     

以科学发展观为指导构建生态宜居新晋城的几点思考

按照"不求其大,但求其优,不求其最,但求其特"的思想,坚持高起点规划,高标准建设,高效能管理,进一步明确城市发展定位、功能分区,在突出特色、丰富内涵、提升品位上下功夫,努力把晋城市建设成为布局合理、特色鲜明、功能完善、环境优美、适宜人居的山水园林城市,促进城乡全面协调可持续发展.     

高档放顶煤工作面网格支架承载特性研究

通过观测孔庄矿井７１７７工作面ＺＷＭ网格式液压迈步放顶煤支架的阻力，分析了支架承载特性，提出了提高支架工作阻力利用率措施     

基于Web的网管协议HMMP及其跨平台性能的实现

介绍了基于Ｗｅｂ的企业管理架构中的关键部分－超媒体管理协议，讨论了协议及其跨平台性能的实现。     

高炉探尺全数字直流调速系统

介绍了全数字直流调速装置SIMOREGK6RA24在高炉探尺系统中的运用，该系统具有控制精度高，组态方便，调试简单，故障率低等优点。