银泰铝土矿矿山地质环境影响评估及防治措施

在分析银泰铝土矿地形地貌、地质、水文地质、矿层开采等资料及现场踏勘的基础上,从地质灾害、含水层破坏、地形地貌景观破坏及土地资源破坏4个方面进行了矿山地质环境影响评估研究。结果表明,采矿活动对地质灾害影响程度较严重,对地形地貌景观、土地资源破坏影响程度严重,对含水层影响程度较轻。依据评估结果,提出了矿山地质环境防治措施。研究成果可为银泰铝土矿矿山地质环境保护与恢复治理提供科学依据。     

宝钢轧辊涡流检测技术的应用和发展

针对宝钢从国外引进的轧辊涡流探伤设备出现的问题着重介绍冷轧辊表面缺陷的涡流检测原理，应用，存在问题及解决办法。     

LT码中高效联合度分布的设计

度分布是影响数字喷泉码性能的关键因素。传统的经典度分布如理想孤子分布、鲁棒孤子分布、二进制指数分布等,由于其明显的性能缺陷,已不能满足日益增长的多媒体业务的需求。为了设计一种性能优良的度分布,提出了两种新的联合度分布设计方案。首先,将泊松分布和滑动-鲁棒孤子分布相结合,构成一个比例系数的联合度分布;然后,将泊松分布、理想孤子分布、滑动-鲁棒孤子分布这三种度分布相结合,构成两个比例系数的联合度分布;最后,通过仿真查找的方法确定两种方案中的比例系数的最优值。仿真结果表明,提出的两种新方案和已知的经典度分布、单比例系数的联合度分布相比较,在译码成功率、误码率等性能指标上都有大幅提升。     

Research on swarm intelligence optimization algorithm

The bionics-based swarm intelligence optimization algorithm is a typical natural heuristic algorithm whose goal is to find the global optimal solution of the optimization problem. It simulates the group behavior of various animals and uses the information exchange and cooperation between individuals to achieve optimal goals through simple and effective interaction with experienced and intelligent individuals. This paper first introduces the principles of various swarm intelligent optimization algorithms. Then, the typical application of these swarm intelligence optimization algorithms in various fields is listed. After that, the advantages and defects of all swarm intelligence optimization algorithms are summarized. Next, the improvement strategies of various swarm intelligence optimization algorithms are explained. Finally, the future development of various swarm intelligence optimization algorithms is prospected.