Metaproteomic analysis of enzymatic composition in Baobaoqu fermentation starter for Wuliangye baijiu

Wuliangye is one of the most famous brands of baijiu in China. The typical flavours of Wuliangye baijiu are mainly formed by the multifarious enzymes in fermentation starter (Baobaoqu, BBQ). As the enzymes remained poorly understood, the detailed enzymatic composition of BBQ was analysed by metaproteomics for the first time. It is worth noting that the enzymes from plant, animals and micro-organisms were detected together and oxidoreductases were the dominant enzymes. Next, the analysis of function showed that the enzymes were mainly involved in carbon metabolism and the biosynthesis of amino acids. Additionally, the relationship between differential abundant enzymes and formation of typical flavour substances in premium and normal BBQ was established. Furthermore, the activities of classic enzymes in BBQ were examined to verify the reliability of metaproteomic results. This study will provide clues to further improve the manufacturing technology for Wuliangye baijiu.     

水电站大型竖井施工安全风险控制措施研究

竖井是大型水电工程中广泛采用的重要建筑物,但竖井的传统施工方法存在施工程序复杂、人工劳动强度大、施工效率不高等特点,同时还存在较大的安全风险。通过对杨房沟水电站大型竖井施工过程的研究,总结出精细化控制爆破、小溜渣井施工方式,同时也设计了一套用于运输的综合提升系统。采用上述创新方法不仅减少了繁琐的施工程序,降低了安全施工风险,而且大量采用机械化手段进一步提高了施工效率,确保了该工程竖井施工的安全风险可控。相关措施可为类似工程的竖井施工提供较好的借鉴作用。     

苏通GIL运输专用机具动力电池类型探讨

GIL运输专用机具是为安全、可靠、高效地完成苏通GIL综合管廊工程GIL单元的运输任务而研制的专用机具,其中动力电池系统设计是整机设计的重点之一。通过对各种常见动力电池优缺点的分析,并结合苏通GIL运输专用机具对动力电池的需求分析,确定了动力电池系统的技术路线,为苏通GIL运输专用机具的研制提供了坚实的基础。     

热轧低密度钢Fe-1.80Mn-1.05Al-0.09C的高温热塑性

采用Gleeble 3500热模拟试验机对一种低合金系热轧低密度钢进行了高温(760～1200℃)热塑性研究,并结合光学显微镜、体视显微镜以及扫描电镜对拉断后的断口附近组织和断口形貌进行了表征。结果表明,随着拉伸温度升高,断口面积逐渐缩小,韧窝也逐渐变大变深,断面收缩率总体表现良好,均达到80%以上,表现出了良好的高温热塑性。但是试验钢在900～1000℃进行拉伸时,出现了多处颈缩现象,900～1000℃时存在理论塑性低谷区,应避免在900～1000℃进行铸坯矫直或轧制。     

Effect of CNTs on Activation Volume and Mobile Dislocation Exhaustion Rate of CNTs/Al under Compression Loading

In this study, stress relaxation compression tests were performed to investigate the strain rate sensitivity, activation volume and mobile dislocations in carbon nanotubes/aluminum (CNTs/Al) composites. The results reveal that, with the addition of CNTs, the strain rate sensitivity of CNTs/Al increased. Meanwhile, a smaller V^* of CNTs/Al compared with pure Al was attributed mainly to the CNT-Al interfaces and partly to the increased forest dislocations cutting activities in grain interior, which was related to the tendency of short ranges order formation during plastic deformation. The incorporation of CNTs also improved the dislocation storage capability and reduced the dislocation velocity, leading to a lower mobile dislocation exhaustion rate.     

建筑与"景"的融合——黄河小浪底中心码头设计

将建筑(内在因素)和环境(外在因素)的具体条件加以综合思考与推敲,即做到因地制宜、因时制宜和因材制宜,方能找到理想的整体空间组合,取得建筑与环境的和谐共生.该文以黄河小浪底中心码头设计为例,说明了建筑与景的融合问题.     

钢板桩围堰在安江沅水特大桥水中墩施工中的应用

文章结合邵怀高速公路安江沅水特大桥水中墩施工实例。介绍了钢板桩围堰在深水桥墩施工中的应用。     

形式的自觉——形式主义美学与现代建筑

20世纪初西方现代美学中．形式主义美学的异军突起对于西方现代艺术革命产生了巨大的影响。形式主义强调艺术的形式因素具有独盘的审美意义．将文本的形式结构作为艺术的核心，这种观点极大地影响了抽象的非再现性的现代艺术运动．并推动了结构主义和符号美学的产生和发展．引发了现代建筑追求空白的、中性的形式结构的倾向，这种倾向在现代主义早期的“风格派“、“构成派”．到成熟现代主义的“国际风格”．到后来的“白色派”．“新现代主义”中都有突出的表现。可以说．现代建筑在形式结构美学的影响下逐渐走上了一条形式自觉的道路。