白灵菇液体菌种工艺研究

探讨不同碳源、氮源对白灵菇液体发酵的影响,确定白灵菇最适液体发酵的碳源、氮源和培养条件。结果表明:最适碳源为:葡萄糖1.5%、玉米粉3%,最适氮源为蛋白胨0.2%、黄豆粉2%,并且得到最佳发酵工艺条件为:初始pH值6.5,210r/min,培养基装液量80～250mL,接种量10%。

Demulsification of Water in oil Emulsion by Using Porous Glass Membrane

The hydrophilic porous glass membranes were used to demulsify water in oil emulsion, liquid membrane and demulsification efficiency can reach more than 96 percent. Effects of pore size of the membrane, transmembrane pressure and volumetric ratio of oil phase to internal aqueous phase in the emulsion on demulsification were investigated. Correspondingly, effect of transmembrane pressure on permeation flux of the droplets was also studied.

指数函数物理量的线性化方法

在工程中,很多待测物理量和其他物理量成指数函数主系,尤其是吸收式放射性仪表。并且多数测量结果要求线性化显示。方法有分段折线法、对数放大法,计算机处理法等。本文建立一个待测指数函数物理量线性化方法。其基本原则是建立一个待测量数学模型,用它将待测量非线性模数转换,使待测量大小变成相应的脉冲宽度T_u,在利用T_u控制脉冲计数,如果脉冲频率设计合适,则脉冲计数直接表示待测量大小。