环锭数码纺粗纱喂入位置对混色纱表面显色的影响

针对三通道环锭数码纺纱技术纺制混色纱时,三色粗纱喂入位置影响成纱颜色效果的问题,提出一种测量粗纱不同喂入位置对纤维在混色纱表面分布面积比（即显色比）的方法。采用2 黑、1 白3 根粗纱,改变白色粗纱喂入位置纺制等比例的混色纱,以白色粗纱作为示踪对象,黑色粗纱作为背景对象,借助数码显微镜对黑白混色纱 连续采样,并用MatLab 处理图像,得到单张图像中白色纤维像素点数量,即白色纤维面积;改变白色粗纱的喂入位置,采用图像法计算得到其在左、中、右喂入位置的显色比。结果表明,Z捻向纱白色纤维在左、中、右喂入位置的显色比为约为36.84%、30.95%、32.21%,S 捻向纱约为32.09%、31.00%、36.91%。     

Modellierung der anaeroben Bioabfallvergärung unter Berücksichtigung von syntrophen Propionat‐oxidierenden Bakterien

Anaerobic digestion of biowaste allows a sustainable production of bioenergy and reduces environmental burden. The anaerobic digestion phase was modeled with Anaerobic Digestion Model No. 1 (ADM1), which was extended to include three genera of propionate‐oxidizing bacteria and two routes of propionate degradation, namely methyl‐malonyl CoA and C6‐dismutation pathway. Kinetic parameters for anaerobic propionate oxidation were determined with defined tricultures of the three propionate‐oxidizing genera together with hydrogenotrophic and acetotrophic methanogens and implemented into ADM1, resulting in the improved model ADM1xpro.