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Search Results: 1 - 10 of 13755 matches for " 钱金平 "
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人口素质灰色综合评价方法的研究
金平
期刊检索-中国人口科学 , 2001,
Abstract: 本文通过对“人口生命素质指数”和“ASHA”指标两种常用评价人口素质方法的分析,应用灰色系统理论,提出新的人口素质灰色综合评价方法。这种方法比上述两种方法更为全面、准确,具有广泛的应用前景。
对生态系统服务研究的几点新认识
王洪梅|金平
地理科学进展 , 2009, DOI: 10.11820/dlkxjz.2009.06.005
Abstract: 生态系统服务的研究因能更好地体现人与自然的相互作用关系而成为生态学研究热点之一。为了更准确的把握生态系统服务的未来工作重点,本文首先按照研究的时间和内容,依据代表性文章和大型国际研究计划,把生态系统服务的研究进展分为三个阶段,并指出了不同阶段的研究重点{1}以基础理论研究为主的初步发展阶段;{2}以生态系统服务价值评估等实证研究为主的发展阶段;{3}以生态系统服务评估应用为主的蓬勃发展和自我完善阶段。其次,作者总结了目前研究过程中存在的亟待解决的若干问题,主要包括对相关概念的正确理解和使用,对评价指标、评价尺度的选择,以及评价过程中的经济学问题、评价标准统一化问题等。最后,根据生态系统服务研究发展阶段以及当前实践工作中存在的问题,提出了生态系统服务研究的工作重点为{1}引入模型,加强模拟研究;{2}确立统一评价标准,加强对比研究;{3}人类行为—生态系统服务—人类福利三者相互作用研究;(4)典型区的生态系统服务评价研究等。
基于磁场解析计算的直线旋转永磁作动器参数分析
金平
中国电机工程学报 , 2013,
Abstract: 为了深入研究直线旋转永磁作动器(linearandrotarypermanentmagnetactuator,LRPMA)的参数对其力学和电磁性能的影响,基于磁标量位的磁场解析计算方法,对LRPMA进行了分析。采用曲率系数法和圆弧直线等效模型,对LRPMA的磁场分布进行了解析计算,采用三维有限元方法进行了验证。基于解析结果,得到不同的极弧系数和槽宽槽距比条件下LRPMA的直线定位力、旋转定位力矩、定子绕组磁链的基波分量和谐波分布云图。实验制作了LRPMA样机,样机的试验结果与解析计算优化结果基本一致,有效验证了所提解析方法的正确性和有效性。
New Cognitions on the Researche of Ecosystem Services
对生态系统服务研究的几点新认识

WANG Hongmei,QIAN Jinping,
王洪梅
,金平

地理科学进展 , 2009,
Abstract: Ecosystem services should be paid more attention for it can evaluate the tradeoffs between human and nature in a better way. In this paper, firstly, based on time and some typical papers, projects etc, the researching process on ecosystem services are classified into three phases for the first time:(1)primary phase, which mainly focused on basic theory; (2)developing phase which mainly focused on ecosystem services valuation and methods; and (3)highly developing phase which mainly focused on ecosystem services application. Secondly, major problems in current research are pointed out, including: using some concepts correctly, choosing directors and scale correctly, some economic problems and the unification of every kind of valuation. Finally, the in-depth studies are suggested to be focused on: (1)intensifying simulation by models; (2)contrasting researches based on unification;(3)tradeoffs between human activity-ecosystem services-human wellbeing; and (4)values of different ecosystem services.
Study on Strategies of Pollution Prevention in Coastal City of Zhejiang Province Based on Scenario Analysis
基于情景分析的浙江沿海地区环境污染防治战略研究

金平,陈吕军,杜鹏飞,
环境科学 , 2013,
Abstract: Scenario analysis was used to study the environmental burden in a coastal city of Zhejiang province under different patterns of economic development. The aim of this research is to propose advices on decision making by illustrating how to make emissions reduced by transforming the pattern of economic development in a developed coastal area, which had acquired the level of 70000 yuan GDP per cap. At first, 18 heavy pollution industries were screened out, by referencing total emissions of chemical oxygen demand, ammonia-nitrogen, sulfur dioxide, and nitrogen oxide. Then, a model of scenario analysis and the back-up calculation program were designed to study the sustainable development of the heavy pollution industries. With 2008 and 2015 as the reference year and the target year respectively, emissions of four pollutants mentioned above in the 18 heavy pollution industries in the city were analyzed under six scenarios. The total emissions of 4 pollutants should be reduced to an expectant degree, which is set as the constraint prerequisite of the scenario analysis. At last, some suggestions for decision-making are put forward, which include maintaining a moderate increase rate of GDP around 7%, strengthening the adjustment of economic structure, controlling the increasing rate of industrial added value of the industries with heavy pollution, optimizing the structure of industries with heavy pollution, decreasing the intensity of waste emission by implementing cleaner production to reduce emission produce at the source, and strengthening regulations on the operation of waste treatment plants to further promote the efficiency of waste treatment. Only by implementing such measures mentioned above, can the total emissions of chemical oxygen demand, ammonia-nitrogen, sulfur dioxide, and nitrogen oxide of the 18 industries with heavy pollution in the city be reduced by a 10%, 10%, 5%, and 15% respectively based on the reference year.
秦皇岛柳江华夏植物群及古环境研究
阎同生,金平,袁金国,王健
植物学报 , 2000,
Abstract: ?河北秦皇岛柳江晚古生代地层发育,华夏植物群特征明显,向北300公里即达华夏植物群与安加拉植物群混生带,本文详细研究了河北秦皇岛柳江晚古生代植物化石,发现植物化石44属86种,其中蕨类占首位,石松居第二位,并有苏铁、银杏、科达等植物,植物群具有华夏植物群的特点,可划分出6个植物组合,反映植物群演化具有阶段性。植物群演化阶段与古地理环境变化阶段基本同期。据本溪组与太原组中数层海相灰岩的存在,证明该区曾有浅海分布,山西组中、上部转变为三角洲、河口沙坝及堤外泥坪沉积,上、下石盒子组及石千峰组则变为干旱气候环境下陆相湖泊及河流沉积,植物群演化过程阶段性研究表明植物群演化与古地理演化密切相关。
“7702”止血药的实验研究
施顺清,金平,张林碧,
中国中药杂志 , 1983,
Abstract: <正>为了寻找疗效好、成本低、使用方便、剂型合理的止血药,我们在前人筛选的基础上,选择止血效果明显,来源广泛的仙鹤草、白及、大黄、木叶、血余炭、地榆炭、棕榈子等七味中药,经进一步筛选和组方研究后,将效果较好的组方,以白及胶为基质制成膜剂。其特点是:白及在膜剂中既是主药又是成膜材料,制作方便、成本低廉。实验结果表明:“7702”组方的止血效果优于其他组方,且该组方的止血药膜又比同一组方的散剂止血作用强。
黑箱理论用于甲醇废水的色谱分析
金平,仁渊,程明霄
环境科学 , 1995,
Abstract: 利用黑箱理论对色谱条件进行了优化。对于甲醇废水,由GC/MS定性,用GDX-203+5%聚乙二醇-20M作固定相,FID检测。建立了分析甲醇废水中痕量级C1-C5醇的气相色谱分析方法。检测下限:C1-C3醇为1μg/ml,C4醇为3μg/ml,C5醇为4μg/ml。
基于情景分析的浙江沿海地区环境污染防治战略研究
金平,陈吕军,杜鹏飞,
环境科学 , 2013,
Abstract: 运用情景分析方法研究了浙江沿海地区经济发展方式对环境产生的压力.首先以COD、氨氮、二氧化硫和氮氧化物这4种污染物的排放量为基准,筛选了某典型城市的18个重污染工业行业.其次以重污染工业行业为对象,设计了情景分析模型和辅助程序,以2008年为基准年,目标年2015年重污染工业行业4种污染物的排放量须在基准年基础上下降一定比例作为约束条件,分析在基准情景、产业结构调整情景、工业结构调整情景、清洁生产技术情景、综合情景、可持续发展6种情景下,目标年该市18个重污染行业4种主要污染物的排放量.目的是明确人均GDP已突破70000元的沿海经济发达城市如何转变发展方式,使经济发展的同时,污染物排放量有所减少,以期为优化工业行业发展结构提供决策参考.基于情景分析结论,提出了进一步发展建议,包括经济适度增长(GDP增长7%左右),加大力度调整产业结构,控制重污染行业发展速度,加强重污染行业的结构调整,加强源头控制,加大力度推进清洁生产技术,大幅削减污染物产生量,同时加强治污设施运营监管,提高污染物去除效率.通过上述措施在目标年可控制重污染行业的COD、氨氮、二氧化硫和氮氧化物分别在基准年基础上下降10%、10%、5%和15%.
色谱大剂量直接进样分析水中微量烃
燕海滨,仁渊,金平
南京工业大学学报(自然科学版) , 2001, DOI: 10.3969/j.issn.1671-7627.2001.04.024
Abstract: 在气相色谱上进行大剂量水样(10~100μl)的直接进样来分析水中的烷烃,发现选择合适的固定相和较低的柱温时,样品的色谱峰可以不受水峰干扰.己烷的最小检出量为0.15mg/l,相对标准偏差为6.4%.用外标法测定了室温下水中烷烃的溶解度数据,与文献值接近.其中正壬烷的数据未见文献报道.
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