钢筋混凝土框架电算结果的人工调整

根据钢筋混凝土多层框架的设计经验和设计规范，对如何调整电算结果中的梁，柱截面尺寸，配筋率，裂缝宽度和梁，柱配筋等问题进行探讨，并提出相应的建议。     

武钢金山店铁矿某通风系统项目评估

介绍了金山店铁矿通风系统多级站和机站设计；阐述了该项目的施工，检测及通风效果评估情况；对安全生产提出了全面，系统的建议。     

安全系统工程Web课件的设计与开发

随着网络教育在我国的蓬勃发展，《安全系统工程》课程面临着教学手段和方式的重要变革，开发适用于网络教育的高质量的课件成了一个非常重要而迫切的课题。对该课程Web课件的设计与开发进行了探讨，综合运用了当今网络课件开发的新技术，规划了课件的总体结构、各模块功能和开发方案，为安全工程学科Web课件的开发提供参考。     

MATLAB在环境评价和规划中的应用

本文简述了MATLAB软件的由来和发展，介绍了其主要功能及优点。主要通过在环境评价与规划中的应用实例，展示其在环境科学研究中的应用潜力。文中的第一个实例是MATLAB在多项水质参数的综合评价中的应用，文中对不同的多项水质参数评价方法进行了比较；另一个实例是MATLAB应用于城市固体废物管理规划，极大地提高了规划的水平和准确性，提高了工作效率。最后文中对于该软件在环境学科研究中的应用潜力和优势展开了讨论。     

上海地区湿地生态旅游资源研究

从国内外湿地研究进展中发现，湿地景观资源及其管理对策研究得到人们越来越广泛的重视。上海市湿地面积广阔，占全市海拔-5m以上总面积9123km^2的65．67％，同时具有景观多样性和生物物种多样性。丰富的湿地资源为上海市提供了广阔的绿地空间，成为宝贵的旅游资源。本文对上海市的湿地景观资源进行了细致的分析，并介绍了其开发和利用现状，在此基础上提出了规划设想和几点建议。     

Mine closure legislation in Indonesia: The role of mineral industry involvement

Major mining companies have recently embraced the sustainable development paradigm, in seeking to improve their competitiveness and increase shareholder returns. Successful mine closure is one important element of this process. Improved performance in this area is essential if surrounding communities are to see mining companies as responsible corporate and social partners.
In Indonesia, the new approach has coincided with the development of specific mine closure legislation. To facilitate the legislation, a consortium of mining companies joined to form the Industry Mine Closure Steering Committee. This Committee has lobbied the Government, actively negotiating to incorporate sustainable development ideals and practices into the new legislation. The Committee's aim has been to foster continued development of the mining industry, while taking account of variation in environmental, social and community conditions. In describing the process, this article seeks to provide guidance for the development of mine closure legislation in other nations.     

NUTRIENT LOADING ASSESSMENT IN THE ILLINOIS RIVER USING A SYNTHETIC APPROACH1

ABSTRACT: A synthetic relationship is developed between nutrient concentrations and discharge rates at two river gauging sites in the Illinois River Basin. Analysis is performed on data collected by the U.S. Geological Survey (USGS) on nutrients in 1990 through 1997 and 1999 and on discharge rates in 1988 through 1997 and 1999. The Illinois River Basin is in western Arkansas and northeastern Oklahoma and is designated as an Oklahoma Scenic River. Consistently high nutrient concentrations in the river and receiving water bodies conflict with recreational water use, leading to intense stakeholder debate on how best to manage water quality. Results show that the majority of annual phosphorus (P) loading is transported by direct runoff, with high concentrations transported by high discharge rates and low concentrations by low discharge rates. A synthetic relationship is derived and used to generate daily phosphorus concentrations, laying the foundation for analysis of annual loading and evaluation of alternative management practices. Total nitrogen (N) concentration does not have as clear a relationship with discharge. Using a simple regression relationship, annual P loadings are estimated as having a root mean squared error (RMSE) of 39.8 t/yr and 31.9 t/yr and mean absolute percentage errors of 19 percent and 28 percent at Watts and Tahlequah, respectively. P is the limiting nutrient over the full range of discharges. Given that the majority of P is derived from Arkansas, management practices that control P would have the most benefit if applied on the Arkansas side of the border.     

性能化设计标准在火灾安全设计中的应用

随着建筑向着高层化、大型化的趋势发展 ,目前世界上许多国家的建筑设计正逐步地从处方式规范转换到性能化规范。性能化规范的成功实施需要建立性能化设计标准。在建筑火灾安全设计中 ,使用的性能化设计标准包括确定性设计标准和偶然性设计标准。确定性设计标准主要与火灾的发生、发展和蔓延等级 ,以及生命安全等级有关。偶然性设计标准主要关心火灾发生的可能性及产生的后果。文章最后对性能化设计标准的应用情况进行了讨论和总结     

COMPARATIVE STUDY OF OPTIMIZATION TECHNIQUES FOR IRRIGATION PROJECT PLANNING1

ABSTRACT: This study presents three optimization techniques for on‐farm irrigation scheduling in irrigation project planning: namely the genetic algorithm, simulated annealing and iterative improvement methods. The three techniques are applied to planning a 394.6 ha irrigation project in the town of Delta, Utah, for optimizing economic profits, simulating water demand, and estimating the crop area percentages with specific water supply and planted area constraints. The comparative optimization results for the 394.6 ha irrigated project from the genetic algorithm, simulated annealing, and iterative improvement methods are as follows: (1) the seasonal maximum net benefits are $113,826, $111,494, and $105,444 per season, respectively; and (2) the seasonal water demands are 3.03*10³ m³, 3.0*10³ m³, and 2.92*10³ m³ per season, respectively. This study also determined the most suitable four parameters of the genetic algorithm method for the Delta irrigated project to be: (1) the number of generations equals 800, (2) population size equals 50, (3) probability of crossover equals 0.6, and (4) probability of mutation equals 0.02. Meanwhile, the most suitable three parameters of simulated annealing method for the Delta irrigated project are: (1) initial temperature equals 1,000, (2) number of moves equal 90, and (3) cooling rate equals 0.95.     

隔震建筑概念设计的基本问题

在隔震建筑的设计过程中应首先进行概念设计,在总体上把握隔震结构设计的主要方面。本文论述了隔震建筑概念设计的基本问题。在概念设计阶段,首先应在目标设计概念指导下,综合隔震建筑安全性与投资水平的平衡,确定建筑是采用隔震结构还是抗震结构。在进行隔震设计时,应根据输入地震动的加速度幅值和主频,建筑的允许加速度等值确定隔震结构的固有频率;应根据隔震系数和隔震层的允许位移合理确定隔震层总体刚度的范围。对隔震建筑的上部结构,应选择有利房型,合理布置结构,减小结构的不利地震反应。