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我国建筑卫生陶瓷工业技术发展现状及趋势 总被引:1,自引:0,他引:1
引言
我国建筑卫生陶瓷工业是伴随着改革开放迅速发展起来的。到1993年,我国已成为世界上最大的建筑卫生陶瓷生产和消费国。随着人民生活水平的提高、城镇化进程的加速和出口量的增加,建筑卫生陶瓷工业的发展速度明显加快,2005年,我国建筑陶瓷砖产量已达35亿平方米,卫生陶瓷产量超过1亿件。我国建筑卫生陶瓷产品已逐步被世界认可接受。 相似文献
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中国建筑卫生陶瓷的生产与发展 总被引:2,自引:0,他引:2
本文评述了中国建筑卫生陶瓷工业的现状、国内外市场状况、建筑卫生陶瓷产品及主要技术装备的发展方向,并回顾了我国建筑卫生陶瓷工业50年来的发展历程。 相似文献
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循环经济下建筑卫生陶瓷工业的发展 总被引:2,自引:0,他引:2
本文主要介绍了循环经济的基本概念,建筑卫生陶瓷行业目前所采用传统的经济增长模式的发展现状;叙述了循环经济在建筑卫生陶瓷工业发展中的作用,着重探讨了在建筑卫生陶瓷行业中发展循环经济的基本途径。 相似文献
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我国建筑卫生陶瓷出口问题吴斌王志伟中国国际贸易促进委员会建材行业分会《中国建材》杂志社1.我国建筑卫生陶瓷工业的现状根据国家统计局公布的1995年我国建筑陶瓷产量达15.84亿平方米,卫生陶瓷总产量达5547.51万件,比上年分别增长66.7%和33... 相似文献
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1.背景改革开放以来,我国的建筑卫生陶瓷工业得到了长足的发展。而引进对提高我国建筑卫生陶瓷生产的技术装备,开阔工艺路线和经营规模的思路,都起到了十分有益的推进作用。引进设备的产量估计约占全国总产量的一半,但我国建筑卫生陶瓷的产品,在国际市场上所占份额尚不够大,而国内高级宾馆及大型民用建筑的卫生洁具,进口产品仍占主导地位,这种现象颇值得深思,表明我国建筑卫生陶瓷工业发展的不平衡,尚未形成完整的、具有中国特色的生产体系。 相似文献
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我国的建筑卫生陶瓷近十多年来有了较快的发展。但是工业技术还很落后,产品的产、质量也较低,与世界上工业发达的国家相比,还有很大的差距,远远不能满足国内外市场的需要。以下就产品的情况、企业规模、原料配方、生产技术、机械设备、窑炉及能源等方面作一简要介绍。一、产品情况我国建筑卫生陶瓷的产量增长情况见表1。 相似文献
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加入WTO对我国建筑卫生陶瓷行业的影响及对策 总被引:1,自引:0,他引:1
目前,我国建筑卫生陶瓷生产有两大特点:一是建筑卫生陶瓷生产企业过多,其数量堪称世界第一。然而,中小型建筑卫生陶瓷企业占总数的90%左右,其中设备陈旧,技术落后和陷于亏损的企业占有相当大的比例,二是产品严重过剩。在出口无大幅增长,国内消费依然低迷的情况下,又会过剩相当多的建筑卫生陶瓷产品。 相似文献
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非金属矿在建筑卫生陶瓷工业中的应用现状及发展前景 总被引:1,自引:0,他引:1
1 建筑卫生陶瓷工业现状据全国第三次工业普查资料 ,全国建筑卫生陶瓷及相关企业共 32 14家 ,其中建筑陶瓷生产企业 2 859家 ,卫生陶瓷生产企业 2 36家。这些企业主要分布在广东、福建、河北、河南、山东、浙江、四川等省。1998年全国建筑陶瓷产量 15.9亿m2 ,产量居世界第一位 ;全国卫生陶瓷产量 5145万件 ,产量居世界第一位。以上数据表明 ,我国建筑卫生陶瓷生产企业多而规模偏小 ,产量大而档次低。是世界建筑卫生陶瓷生产大国而不是强国。我国建筑卫生陶瓷工业的工艺技术与装备水平与国外先进国家相比有 10年的差距。产品能耗高 ,燃料结… 相似文献
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Torbjrn Lindblom 《Propellants, Explosives, Pyrotechnics》2002,27(4):197-208
HPLC analysis of the stabilizer is one of the major methods in use for surveillance testing of diphenylamine (DPA) stabilized propellants. Often 0.2% DPA is used as a minimum content for safe propellants. In most cases the propellant can be stored much longer after this limit has been reached without any risk for self‐ignition. We report here about a reaction where DPA bonds to nitrocellulose, leaving a non extractable aromatic stabilizing compound left in the propellant, resulting in a longer time to autocatalysis than predicted. Diphenylnitramine is discussed as a possible intermediary compound occurring from the reaction between DPA and nitrocellulose. This should add to a better understanding of the degradation processes in propellants. 相似文献
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The accepted model of color naming postulates that 11 “basic” color terms representing 11 common perceptual experiences show increased processing salience due to a theorized linkage between perception, visual neurophysiology, and cognition. We tested this theory, originally proposed by Berlin and Kay in 1969. Experiment 1 tested salience by comparing unconstrained color naming across two languages, English and Vietnamese. Results were compared with previous research by Berlin and Kay, Boynton and Olson, and colleagues. Experiment 2 validated our stimuli by comparing OSA, Munsell, and newly rendered “basic” exemplars using colorimetry and behavioral measures. Our results show that the relationship between the visual and verbal domains is more complex than current theory acknowledges. An interpoint distance model of color‐naming behavior is proposed as an alternative perspective on color‐naming universality and color‐category structure. © 2003 Wiley Periodicals, Inc. Col Res Appl, 28, 113–138, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.10131 相似文献
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本文重点介绍了台湾省各大学和研究院所对催化及催化剂的教学。研究与开发方面动向,相关催化方面学科带头人的研究领域和主要成果,并给出大量参考文献。 相似文献
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Alan Wiseman 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》1993,56(1):3-13
Renewed world interest in enzyme biotechnological industries now derives from the expectation that many new biocatalysts will be created by genetic engineering associated with protein engineering designer techniques, or by chemical modification of existing enzymes by use of protein tailoring methods. The biocatalysts produced are mainly enzymes, abzymes (catalytic antibodies) and synthesis (synthetic analogues or mimics), and these will be used in industry, synthesis, therapy: and in bioanalysis of components of foodstuffs, and the environment including water, air and soil. The biocatalysts, including whole cells, are firstly incorporated into a particular bioreactor form by use of enzyme engineering techniques such as immobilization, and are then used, as appropriate, to modify their substrates. Improved processing or enhanced products are thereby achieved in the case of manufacturing industry: or monitoring signals are generated, often in the form of a measurable change in current flow, in the case of environmental biosensors. Designer enzymes and cells can be made now for identified applications where the presently available biocatalysts are inadequate, incompatible or uncompetitive. 相似文献
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Serena Vella Daniela Gnani Annalisa Crudele Sara Ceccarelli Cristiano De Stefanis Stefania Gaspari Valerio Nobili Franco Locatelli Victor E Marquez Rossella Rota Anna Alisi 《International journal of molecular sciences》2013,14(12):24154-24168
Non-alcoholic fatty liver disease (NAFLD) is one of the most prevalent, chronic liver diseases, worldwide. It is a multifactorial disease caused by complex interactions between genetic, epigenetic and environmental factors. Recently, several microRNAs, some of which epigenetically regulated, have been found to be up- and/or down-regulated during NAFLD development. However, in NAFLD, the essential role of the Polycomb Group protein Enhancer of Zeste Homolog 2 (EZH2), which controls the epigenetic silencing of specific genes and/or microRNAs by trimethylating Lys27 on histone H3, still remains unknown. In this study, we demonstrate that the nuclear expression/activity of the EZH2 protein is down-regulated both in livers from NAFLD rats and in the free fatty acid-treated HepG2. The drop in EZH2 is inversely correlated with: (i) lipid accumulation; (ii) the expression of pro-inflammatory markers including TNF-α and TGF-β; and (iii) the expression of miR-200b and miR-155. Consistently, the pharmacological inhibition of EZH2 by 3-Deazaneplanocin A (DZNep) significantly reduces EZH2 expression/activity, while it increases lipid accumulation, inflammatory molecules and microRNAs. In conclusion, the results of this study suggest that the defective activity of EZH2 can enhance the NAFLD development by favouring steatosis and the de-repression of the inflammatory genes and that of specific microRNAs. 相似文献
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