Medical Virology Dept. of Medical Microbiology and Parasitology Shanghai Second Medical University Shanghai, China. E.mail:(xkguoshsmu.edu.cn)

Biological Features Structure and chemical composition Developmental cycle Staining properties Antigens Growth and metabolism Characteristics of host-parasite- relationship Classification

Campylobacter Among the most widespread cause of infection in the world Cause both diarrheal and systemic diseases Campylobacter jejuni

General introduction Gram-negative, obligate intracellular coccobacilli bacteria that infect mammals and arthropods Rickettsiae are transmitted in the arthropods, which serves as both vector and reservior Both dna and rna Is sensitive to antibiotic

Biological Features Aerobic, Gram, noncapsulated, rods Gray-black colonies on tellurite亚碲酸盐 medium o Metachromatic granules Chinese-letter morphology in Gram stain

Category Spore- forming: rod, Gram(+)--Clostridium Nonspore- forming: see next slides

§7.3 对流传质 一、实验关联法 1、传质理论简介 2、对流传质系数的经验关联式 二、解析法 三．类比法

概念 分子扩散、对流传质、扩散通量、绝对扩散通量、 主体流动通量、漂流因数、双膜模型要点、浓度边界层、 影响对流传质的因素

§4.3 对流传热 §4.3.1理论分析法求 §4.3.2实验方法求 §4.3.3 类比法求

1.5 边界层及边界层理论 一、边界层概念及普兰特边界层理论 二、边界层的形成和发展 三、边界层分离 1.6 湍流 1.7 流速、流量的测量 1.7.1 变压头流量计 1.7.2 变截面流量计