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采用随机踢球模型结合密度泛函理论，在PBEPBE/RE/SDD/Si/6-311+G（d）水平下研究了中性和阴性的硅基稀土掺杂团簇MSi7q（M=Eu，Sm，Yb；q=0，-1）的几何结构、稳定性及电子和磁学性质.计算结果表明，阴性团簇的基态结构是在五角双锥的双锥侧面外法向方向加入一个Si原子而形成的3D结构
Assessment of milk production competitiveness of the Slovak Republic within the EU-27 countries
comparative advantage competitiveness indicators European Union milk products raw milk
2016/11/11
Raw cow milk represents one of the most important commodity in the agricultural market. The Slovak agro-food foreign trade is characterized by a substantial increase in the commodity trade, monitoring...
利用紫精功能化的配体1-(3,5-二羧基苄基)-4,4'-联吡啶硝酸盐 (H2L+NO-3)与Eu(Ⅲ)离子在溶剂热条件下得到一个金属有机配合物{[Eu(μ2-OH)(L)(HCO2)]·H2O}n(1),其中甲酸阴离子来自于溶剂DMF(N,N'-二甲基甲酰胺)分子的原位分解。 单晶X射线衍射表明配合物1是一个手性的二维层状结构。 配合物1呈现出可逆的、快速响应的光致变色特性。 在光热作用下,它表...
Agriculture in the EU and position of the Slovak Republic
disparity of production fixed assets intermediate consumption labour input segmenting farms in the EU size of farms subsidies
2015/11/26
The paper analyses disparity in the performance of farms in the EU countries and identifies their causes. The individual countries are ranked in the paper according to the long-term average of the amo...
Financial Integration within EU Countries: The Role of Institutions, Confidence and Trust
European capital markets regional capital fl ows ownership culture
2015/9/21
We investigate the degree of financial integration within and between European
countries. We construct two measures of de-facto integration across European regions
to capture “diversific...
Towards a Social Value Convergence: a Comparative Study of Fundamental Principles of Contract Law in the EU an
Social Value Convergence Fundamental Principles
2015/8/4
One of the remarkable differences in contract law between legal systems in the European Union and China is the definition and status of contractual freedom. Historically, contractual freedom has not b...
EU eastern enlargement and foreign investment: Implications from a neoclassical growth model
Foreign direct investment Capital fl ows EU enlargement Neoclassical growth model Transition economies Three-country model
2015/7/21
EU eastern enlargement and foreign investment: Implications from a neoclassical growth model.
Application of the DEA on the measurement of efficiency in the EU countries
agricultural sectors in the European Union agriculture
2015/3/4
Th e purpose of the paper is to investigate the relative technical effi ciency of the agricultural sector in the European Union (EU) using the Data Envelopment Analysis (DEA) during the period 20...
Proposal for the EU CAP compliant agricultural budgeting model in Montenegro
agricultural budget agriculture and rural development EU accession negotiations
2014/11/28
After the official start of the Montenegrin accession negotiations with the EU in June 2012, it is important to plan a significant increase in the agricultural budget financing well ahead of the acces...
含铁微孔EU-1/ZSM-5复合分子筛的合成和表征
预置晶种 Fe-EU-1/ZSM-5 复合分子筛 合成
2014/4/16
采用预置晶种法合成了含铁的微孔EU-1/ZSM-5复合分子筛,并采用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)、热重-微分热重(TG-DTG)、N2吸附-脱附、紫外-可见吸收光谱(UV-vis DRS)、X射线吸收精细结构(XAFS)等手段进行了表征。结果表明,复合分子筛具有EU-1和ZSM-5的特征衍射峰,是两种晶相相互作用的分子分散晶相材料,微孔孔径较Fe-EU-1分子筛有所增大。随原...
The priorities of rural development in EU countries in years 2007–2013
agricultural policy CAP European Union farm subsidy subsidy programs for agriculture
2014/2/24
The diversified level of agricultural development and directions of evolution of rural areas in the individual EU countries results in complex and diversified problems for the agricultural policy. Tha...
Agri-food trade of the new member states since the EU accession
agri-food trade EU accession New Member States
2014/2/24
In 2004 and 2007, twelve New Member States (NMS) joined the European Union (EU), causing several changes in the field of agriculture. One of the major changes was the transformation of the national ag...
Arbitrage hedging in markets for the US lean hogs and the EU live pigs
futures market pig market risk management threshold cointegration analysis
2014/2/24
The paper describes an attempt to gain insight into the relationship between cash and futures markets for US lean hogs and EU live pigs, and the opportunity of arbitrage hedging. In doing so, the auth...
National Sovereignity and the Principle of Primacy in EU Law and Their Importance for the Member States
Principle of Primacy EU Legal Order Direct Effect National Sovereignty nal Law EU Law
2013/9/16
The principle of primacy of the EU law has been in force for almost 50 years and belongs to the fundamental principles of EU law. It signifies that in case of a conflict between EU law and the law of ...