浅层岩溶二维地电影像勘探技术与效果

在吸收传统的电阻率法勘探技术精华和方法理论的基础上,应用二维的观点和数字模拟重构技术,论述了二维地电影像系统的理论、方法、技术,并通过实测案例展示了该技术在研究工程与环境地质调查问题的优势及可行性。     

New repellent semiochemicals for three species of <Emphasis Type="Italic">Dendroctonus</Emphasis> (Coleoptera: Scolytidae)

Summary. Nine compounds identified from captured volatiles of the Douglas-fir beetle, Dendroctonus pseudotsugae, the mountain pine beetle, D. ponderosae, and the spruce beetle, D. rufipennis, that elicited antennal responses in males and females of one or more of these species were tested in the field to determine behavioural activity. 1-Octen-3-ol, found in the volatiles of females of all three species decreased the response of male and female coastal and male interior D. pseudotsugae and both sexes of D. ponderosae to their aggregation pheromones. Acetophenone, identified in the volatiles of females of all three species, significantly decreased the response of interior female D. pseudotsugae. trans-Verbenol, a potent aggregation pheromone of D. ponderosae, decreased the response of both sexes of D. pseudotsugae, while 3-methyl-2-cyclohexen-1- one (MCH), the antiaggregation pheromone of D. pseudotsugae and D. rufipennis decreased the response of both sexes of D. ponderosae. While it has been demonstrated that semiochemical mediated interspecific communication occurs among bark beetles infesting the same host, this study demonstrates that beetles can perceive signals emitted by heterospecifics attacking nonhosts and can potentially use them to avoid attacking the wrong species of conifer.     

组培川贝母鳞茎形成和发育过程中的同功酶分析

在组培川贝母（Fritillaria cirrhosa D.Don）鳞茎形成和发育过程中，获得愈伤组织、胚性愈伤组织、胚状体、小鳞茎和大鳞茎，分别作过氧化物酶、过氧化氢酶、淀粉酶电沪分析和活性分析。结果表明，3种酶都参与了川贝母鳞茎形成和发育，且酶的表达量和活性随不同的时间发生变化。过氧化物酶的B区酶带变化明显，小鳞茎阶段活性较氧化氢酶在胚状体和大鳞茎阶段几乎不表达，但在小鳞茎阶段表达量增加十分明显，活性也较高；淀粉酶的3条谱带在胚状体阶段表达明显，活性也最高，但在大鳞茎阶段则几乎没有表达。图7参7     

氨基苯酚类废水的络合萃取

以P2 0 4 (二 (2 乙基己基 )磷酸 )为络合剂 ,煤油为稀释剂 ,正辛醇为助溶剂 ,通过萃取 反萃取的方式 ,对氨基苯酚类废水进行处理。研究了萃取剂浓度、废水pH值和油水比O/W ,以及反萃剂浓度、反萃油水比和反萃温度对萃取效率的影响。结果表明可将原废水的CODcr值降低至 1 / 7,使之满足其它末端处理的要求 ,而且反萃工艺简单易行 ,溶剂可重复使用     

长阳一碗水地区变形体演化特征与数值模拟

为了弄清滑坡的演化过程，介绍了长阳一碗水地区变形体演化特征，并利用RFPA2D软件较为形象直观地模拟了一碗水地区变形体形成演化及发展趋势。模拟的结果与地质分析结果具有较高的一致性，达到了地质分析与数值模拟相互印证的效果。     

镍镉电池废镉极板制备碳酸镉的研究

针对镍镉电池生产过程中产生的废泡沫式镉极板 ,提出了一条“溶解 萃取 沉淀”法生产碳酸镉的工艺路线。试验探讨了H2 SO4 溶解活性材料、P2 0 4 萃取Cd、H2 SO4 反萃Cd、Na2 CO3 沉淀Cd的条件     

Towards sustainable development in Austria: renewable energy contributions

Besides energy conservation, theexploration of renewable energy sources, inparticular biomass and solar energy, arecentral aspects of the Austrian energypolicy, regarded as an optimal option forachieving CO₂-emission reductionobjectives.The market penetration of RenewableEnergy Technologies in the last twentyyears was supported by the AustrianEnergy Research Programme. The result ofsuccessful developments of biomass heating,solar thermal, solar electrical and windenergy technologies is the key for themarket development of these renewableenergy technologies.With the market penetration of renewableenergy technologies new business areas wereestablished and employment created.Today, some renewable energy technologiesin Austria have reached economiccompetitiveness. Some technologies notreached commercialisation, and need moredevelopment to improve efficiency,reliability and cost to become commercial.This would include material and systemdevelopment, pilot plants or fieldexperiments to clarify technical problems,and demonstration plants to illustrateperformance capabilities and to clarifyproblems for commercialisation.     

基于Solidworks2001的锻件毛坯三维实体的自动生成

利用三维实体造型软件的参数化设计思想 ,在Solidworks2 0 0 1环境中 ,通过对零件实体图的尺寸、结构、加工要求等信息的读取 ,经过二次开发程序的分析后 ,自动形成锻件的毛坯三维实体图 ,为在三维环境下的冷加工工装设计提供重要的依据 ,并能快捷地转换成锻件毛坯图     

The “second dividend” and the demographic structure

The demographic structure of a country influences economic activity. The “second dividend” modifies growth. Accordingly, in general equilibrium, the second dividend and the demographic structure are interrelated. This paper aims at assessing empirically the “second dividend” in a dynamic, empirical and intertemporal setting that allows for measuring its impact on growth, its intergenerational redistributive effects, and its interaction with the demographic structure. The paper uses a general equilibrium model with overlapping generations, an energy module and a public finance module that distinguishes between non-ageing-related public spending and a pension regime. Policy scenarios compare the consequences of different scenarios of recycling a carbon tax through lower proportional income taxes rather than higher public lump-sum expenditures. They are computed for two countries with different demographics (France and Germany). Results suggest that the magnitude of the “second dividend” is significantly related with the demographic structure. The more concentrated the demographic structure on cohorts with higher income and saving rate, the stronger the effect on capital supply of the second dividend. The second dividend weighs on the welfare of relatively aged working cohorts. It fosters the wellbeing of young working cohorts and of future generations. The more concentrated the demographic structure on aged working cohorts, the higher the intergenerational redistributive effects of the second dividend.