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文章对欧洲央行三年期长期再融资操作(LTRO)的实施、效果和作用、存在问题和隐患等方面进行解读,以增进对欧债危机解决方式的了解和认识。 相似文献
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本文首先阐述了步入式更衣间中设置标准柜的必要性,并对标准柜设计需要考虑的因素进行了分析,最后通过实例对步入式更衣间柜体的设计思路进行了简要的介绍。 相似文献
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洛可可家具以极其华丽纤细的曲线和精美的装饰为设计基本特征。本文通过介绍欧洲各国洛可可时期的社会背景和家具的风格特点,进一步阐述了欧洲洛可可风格家具。洛可可风格在欧洲各国的不同表现,让我们了解到洛可可的多种演义,为我们开发现代欧式风格家具开拓了思路,设计出符合我国实际需求和审美的家具。 相似文献
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针对金属制品企业的部分检测人员对GB228—87《金属拉伸试验方法》标准中所规定的性能测试概念、目的不清的状况,通过采用用金属学、金属力学的一些基本原理、概念,并结合实际试验情况,对标准中的性能测试作一说明,以达到正确理解和应用之目的. 相似文献
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The welfare of food-producing animals is a focus of public debate in Europe. Political institutions, have introduced regulations based on scientific data. Meanwhile, the practices of producers and transformers were modified. Implementation of care practices is added to the goal of sustainable basic health of animals. Nevertheless urban consumers still look for the “naturalness” of living animals. A brief historical perspective introduces the building process of European regulations. A short list of Directories and Recommendations provides a clue on the complexity of resulting construct. Now, this complexity is calling for simplification of rules while practices should be compatible with professional constraints. Few selected examples are brought to illustrate how the concepts initially studied by scientists (welfare, pain, stress, “consciousness”/awareness) were integrated in regulations and implemented by producers and meat industry in order to simultaneously maintain the requirements for high quality and security standards. At the same time, free trade market constraints introduced new distortions, in particular those linked to the world demand for proteins. Indeed, the controversy about animal welfare, initially brought on ethical grounds, became a case for ongoing adjustements of EU policy, requesting to combine scientific knowledge on animals, consequent evolution in the representation of animals by urban consumers with the challenge of adaptation and implemention of regulations. 相似文献
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Elena Manferdini 《Architectural Design》2015,85(6):32-39
What happens when you subvert the standardised repetition of the Modernist grid? In Building the Picture, a series of drawings that architect Elena Manferdini produced for an exhibition at the Art Institute of Chicago that ran during the spring and summer of 2015, visual effects and colour were applied to counteract Mies's highly uniform and modular mass-producible systems. 相似文献
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《Materials and Manufacturing Processes》2012,27(12):1405-1411
The purpose of this study is to compare the efficacy of two rapid casting technologies, namely, ZCast process and investment casting based on 3D printing technique of rapid prototyping for casting of aluminium alloy. A standard procedure has been premeditated starting from the identification and design of benchmark. The concept was presented in physical form by producing prototypes to assess the impact of technology used on dimensional accuracy by assigning tolerance grades as per UNI EN 20286-1 ISO. Important mechanical properties were also compared to verify the suitability of the castings and further results are supported by microphotographs and radiography analysis. Best settings for the 3D printing machine and the minimum shell thickness for ZCast process are proposed which give the acceptable results as per IS casting standards. Two commercially available powders, namely, ZP14 (starch based) and ZP100 (plaster based) were infiltrated with two infiltrants, namely, acrylate and wax, resulting in four different material systems for making patterns for investment casting. For ZCast process the shells were printed in ZCast501 powder and were directly used as mould with sand support. The proposed rapid casting technologies based on 3D printing, proved to be effective for the production of cast technological prototypes in very short times avoiding any tooling phase and with dimensional tolerances that are completely consistent with metal casting processes. 相似文献