Yu Hual Li Yongzhen Jiang Xiongtu
1987, 6(4).
Abstract:采用金电极阳极溶出伏安法测定食品中微量的砷,以还原蒸馏法分离干扰离子,在静止溶液中富集As~(3+),此法测定范围可从25—400ppb。用本方法分析水质、饮料、植物油、河产品中微量的砷可得到满意结果。
1987, 6(4).
Abstract:The successful operation of an Upflow Anaerobic Sludge Bianket(UASB) reactor depends on the granulation of anaerobic sludge. In this paper, the acclimating techniques, the nutritional conditions and the enviromental factors in cultivating the granular slu
Wang Hongsheng Xiu Shikang Xie Zixiang
1987, 6(4).
Abstract:The paper studies inversion rates of sugar and other contents in cane juice due to presence of cnzymes and chemical reactions by simulating the cane milling and diffusion process. A series of regress equations on inversion rates is found. The chemical and
1987, 6(4).
Abstract:This Paper describes a modified installation for recovery of essence from apple jnice. and studies the optimum technological condition for operation, the recovery percentage, the quality of reflavrored stripped juice, and the essence from those different
1987, 6(4).
Abstract:本文提出用原子吸收法快速测定矿泉水中10种元素含量的方法,对元素间的相互干扰进行了探讨。本法具有快速,简单可靠,样品无需特殊处理等特点。10种元素测定回收率在96—102%,变异系数为0.96—10.0%。
1987, 6(4).
Abstract:A new approach to overcome and eliminate the polygon effect in chain drives is discussed in this paper. Tooth shape of chain drive in parallel motion is determined by the envelope theory. Sprocket and chain turn together on the last point of their line of
1987, 6(4).
Abstract:This paper discusses the fundamental principles of the finite dimensions "Markov Chain" (M.C.) of the Random mathematics. By using the principles it analyses a series of problems as the motion mechanism of the fibre on roller card during carding process,
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