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This method is reproducible and simple and thus can be readily scaled up for industrial production.
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Until now, however, industrial production of PHAs has encountered only limited success.
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Effects of reaction time, temperature, solvents, catalysts and feeding molar ratio on the yield and quality of products were investigated, and an improved procedure suitable for industrial production was established.
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Carbon-based solid phase containing open and closed multiwalled carbon nanotubes (up to 5% of the total carbon) was found in the waste from industrial production of metallic lithium by electrolysis of lithium chloride melt with graphite electrodes.
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The other technique leans upon the traditional technology commonly adopted in an industrial production of the above chloramines and includes, in addition to the earlier existing steps, a step we proposed for purifying waste water.
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| | This article has made an approach on the influence of chemical composition, and heat treatment process of high strength cast zinc-base alloy to the mechanical properties and metallography structure. In the meantime, on the basis of the test compared with ZSn-6-6-3 friction abrasion property, it has been got out that the alloy is a good abrasion-resistant material, it may take the place of tin-bronze to make abrasion-resistant parts, and there is great practical value and applied potentiaty in the industr... | | 本文就高强度铸造锌基合金的化学成分、热处理工艺等对力学性能及金相组织的影响进行了探讨。在与ZSn6—6—3摩擦磨损性能对比的基础上,得出该合金是一种良好的耐磨材料,可代替锡青铜制造耐磨件,在工业生产中有很大的实用价值和应用潜力。 | | 文摘来源 | | The progress in deformation mechanics of alloy with two ductile phases widely used in the industrial production is reviewed in the paper. Developments and applications of mixture law describing strength of fibre composite materials in the dual phase steels are introduced, Mileiko's theory based on assuming equal strain in both phases, model for stress-distribution in both phases, continuum model based on assuming strain-distribution in both phases and micfo-mechanics model based dislocation theo... | | 本文评述了工业生产中广泛应用的延性二相合金变形力学的研究进展。介绍丁描述复合材料强度的混合物定律在描述双相钢的力学性能中的发展和应用;讨论了以等应变为基础的Mjleiko理论;并讨论了以应变分配为基础的连续介质模型和应力分配模型,以位错理论为基础的微观力学模型,以及用连续介质模型的物理意义说明的综合变形模型的建立和它们的特点;列举了双相钢流变曲线的有限元分析方法的数值模拟解,以及各模型的预测值和实测值的对比,概述了各个理论在描述双相钢变形力学特性中的适用性,以及各个理论在改进双相钢性能的合金设计和组织优化中的意义和指导作用. | | 文摘来源 | | The developed level of industrial production,science and technology is controlled directly by the degree of research, utilization of mineral materials. In this paper, the significance, role, recent domestic and external developments and progresses in mineral material science are discussed. Several proposals concerning its further development in future are offerred. | | 矿物材料的研究、开发和利用的程度直接制约着工业生产和科学技术的发展水平。文章对该学科的意义和作用、国内外发展简况及目前研究的新进展进行了论述,对今后该学科的发展提出了建议。 | | 文摘来源 | |   | | << 更多相关文摘 |
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