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宏观经济产业位次分析及矿业产业地位探讨银开州1,张莲荣2(1.北京市北京三地曼矿业软件科技有限公司2.长春黄金研究院)摘 要:国民经济产业位次的正确划分和合乎逻辑的适时调整关系到国民经济宏观管理的有效性.从生产要素的作用变迁分析出发,建立了新的生产活动模型,继而提出了5次产业划分理论.矿业由于其典型的自然资源要素投入模式被列入第一产业,这就从产业经济学角度解决了过去长期争论不休的矿业产业定位问题,将为新的产业管理模式优化提供参考.关键词:经济产业位次; 生产要素; 生产活动模型; 5次产业; 自然......
J. Cent. South Univ. (2021) 28: 1324-1332 DOI: https://doi.org/10.1007/s11771-021-4705-y Effect of reductant sodium bentonite content and reaction temperature in sponge iron production from... and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract: In recent years, composite pellet production with added reductant has been developed instead of traditional iron production......
Optimizing rhamnolipid production by Pseudomonas aeruginosa ATCC 9027 grown on waste frying oil using response surface method and batch-fed fermentationLUO Zhi(罗致)1,2, YUAN Xing-zhong(袁兴中)1,2, Zhong... of Environmental Biology and Pollution Control of Ministry of Education (Hunan University), Changsha 410082, China)Abstract:Rhamnolipid production by Pseudomonas aeruginosa ATCC 9027 with waste frying oil......
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to the improvement of the photocatalytic hydrogen production.关键词:......
J. Cent. South Univ. Technol. (2011) 18: 1425-1433 DOI: 10.1007/s11771-011-0857-5 Production and characterization of alkaline extracellular lipase from newly isolated strain Aspergillus awamori.... The growth conditions and nutritional factors for lipase production by strain HB-03 were optimized, and the maximum lipase production of (45.9±2.3) U/mL was obtained at 30 °C and pH 7.0 after 36 h using......
基于超亲水原理的自清洁表面研究进展及产业化状况 郑建勇1,冯杰1,钟明强1 (1.浙江工业大学化学工程与材料学院,杭州,310014) 摘要:简要介绍了超亲水表面的自清洁原理,各种制备方法及目前超亲水自清洁表面的产业化状况.从初始接触角,光谱响应范围和超亲水持久性角度出发,指出了当前超亲水自清洁表面研究中存在的问题.最后对其未来发展进行了展望. 关键词:超亲水; 自清洁表面; 产业化状况; superhydrophilic; self-cleaning surface; production status; [全文内容正在添加中] ......
Ni/Y2O3-Al2O3 catalysts for hydrogen production from steam reforming of ethanol at low temperature马洪波,张荣斌,黄思富,谌伟庆,石秋杰Institute of Applied Chemistry, Nanchang University摘 要:production over the catalyst. Composite support catalysts exhibited high activity for ethanol steam reforming (SRE), and the supported catalyst with composite of 1:1 mole......
Synthesis of LiFePO4 using FeSO4·7H2O byproduct from TiO2 production as raw materialPENG Zhongdong, CAO Yanbing, ZHOU Yulin, and HU Guorong School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China摘 要:As the byproduct of TiO2 industrial production, impure FeSO4·7H2O was used for the synthesis of LiFePO4......
Production of Poly-b-hydroxybutyrate by Activated Sludge in Sequencing Batch Reactor under Aerobic Conditions李晓岩1,JIN Zijing1,QIAN Yongyu1,CUI Daizong1,CHEN Xiguang2,赵敏11. College of Life Sciences, Northeast Forestry University2. College of Marine Life Science, Ocean University of China摘 要:In order to improve poly-β-hydroxybutyrate(PHB) production......