优秀青年人才成长规律初探

通过对我校青年人才的问卷调查,旨在分析、寻求出他们成长的规律,初步结论:主要靠的是本人自强不息的精神。为有利于青年人才的成长,应进一步建立更为有效的、具有创新意义的管理体制和运行机制,营造符合青年人才成长规律的氛围和环境,促进高职高专院校青年人才的快速成长。     

Use and storage of domestic pesticides in the UK

Several epidemiological studies, particularly from the United States, have suggested health concerns may arise from the chronic exposure of young children to pesticides in their home environment. Most of these studies are retrospective and the available pesticide exposure information is either subject to the problem of recall or derived from surrogate information. Currently, little is known about the extent of pesticide use in homes and gardens in the UK. This was investigated in this study using a sample of parents from the Avon Longitudinal Study of Parents and Children (ALSPAC) cohort in and around Bristol. The level and extent of pesticide use by parents was explored through interviews that took place at the homes of the participants during August to November 2001, followed by an inventory of products stored in the home. From the results, 93% of parents had used at least one pesticide over the preceding year with the highest use being in the garden, second inside the home, followed by treating pets and head lice. Most households reported using one to five different products over the past year, with a mean of 3.5. The frequency of pesticide use showed that a minority of parents are using pesticides in the high frequency range. Over 85 different pesticide products were found to be stored in 76% of homes, with 76 different types of pesticide active ingredients. Insecticides were the most commonly used and stored pesticide.     

聚变裂变混合发电堆水冷包层中子学设计分析

主要针对聚变裂变混合发电堆FDS-EM水冷包层的能量倍增因子M和氚增殖率TBR等中子学参数进行优化计算。FDS-EM包层主要设计目标是在氚自持的基础上获得约1 GW的电功率,并且尽可能长时间连续运行不换料。通过初步设计分析给出一个使用核废料(压水堆卸出的废料钚、锕系加上贫铀)作为裂变燃料,能够实现氚自持、能量倍增因子约为90等设计目标,且连续运行至少10年不换料的中子学方案。     

中国液态金属锂铅实验回路DRAGON-ⅣMHD实验段设计与分析

锂铅实验回路是研究液态金属锂铅包层关键技术问题的必备装置,MHD(Magneto Hydro Dynamic)实验是探究液态金属在聚变强磁场环境下流动特性的重要环节.本文结合聚变堆锂铅包层设计特点和实际的工程可行性,设计了中国高温多功能液态金属锂铅实验回路DRAGON-Ⅳ中的MHD实验段.初步结果表明MHD实验段设计方案的合理性,能够满足回路的设计原则和要求.     

丰城赣江大桥水上钻孔定位测量

丰城赣江大桥工程地质勘察水上钻孔定位施工放样是采用方向法前方交会.用电磁波测距三角高程测量来测定其孔口标高.从误差传播定律的角度,论证了该施测方案的正确性,同时也论述了要达到高精度放样的最佳图形是布设成两底角为锐角的等腰三角形.     

第三届长江论坛及长江-欧盟高层对话会

第三届长江论坛将于2009年4月19日至21日在上海举行,论坛由上海市人民政府和长江水利委员会主办,中国-欧盟流域管理项目、世界自然基金会和美国大自然保护协会协办。     

发展探矿权采矿权市场的基本经验、主要问题与建议

通过全国范围各省(区、市)探矿权、采矿权市场建设情况调研，总结了“两权”市场建设的基本经验，分析了存在的主要问题，提出了进一步培育和规范“两权”市场建设的建议。     

煤成气井完井方式选择及现场试验

煤成气井与常规油气井完井方式选择有着质的不同。通过对煤成气井完井特点的分析，提出了煤成气井完井方式选择的依据和方法。结合安阳地区煤成气井水文地质条件和经济技术水平，成功地对４口煤成气井进行了完井方式选择和现场试验。