该反应在全混流反应器中进行,反应温度为 20℃,液料的体积流量为0.5m3/h, CA=96.5mol/m3,cbo=184mol/m3,催化剂 度方程=6.63mol实验测得该反应的速 的浓度C ra=kC Co 式中k=1.15*10-3m3/(mol.ks)。若要求A的 转化率为40%,试求反应器的体积

9-1如图9-1所示,一条无穷长载流20A的直导线在P点被折成120°的钝角,设d=2cm,求P点的磁感应强度。 解:P点在OA延长线上,所以OA上的电流在P的磁感应强度为零

Properties of herpesviruses Enveloped double stranded DNA viruses. Genome consisits of long and short fragments which may be orientated in either direction, giving a total of 4 isomers

一、载波信号传输 调幅波fa)=[A+f(t)] cos

本組(A班第五組)策略小故事報告,主要探討對像是全球家俱業佼佼業者~IKEA(誼家 集團)在策略採行上及其背後本質。而本篇報告由良、玉梅、昕霓、茵玲四人合作共 同完成。我們探討IKEA的原因在於小組成員對家具業深感興趣,同時IKEA所创造的家 具業神話更是認本組成員覺得有必要探討的重大因素,以從中尋出其得以致勝,成為全球 第一大家具業者的因素

80C51指令系统专用于80C51系列单片微机,是一个具有 255种操作码(00H至FFH,除A5H外)的集合。 用汇编语言表达操作代码时,只要熟记42种助记符。42种 助记符代表了33种功能,因为有的功能如数据传送,可以有几种 助记符,如MO、MOC、MOX。而指令功能助记符与操作 数各种寻址方式的结合,共构造出111种指令,同一种指令所对 应的操作码可以多至8种(如指令中Rn对应寄存器R-R7)

Here we'll discuss the basic idea behind an engine, and then go into detail about how all the pieces fit together and how to increase performance Internal Combustion Almost all cars currently use what is called a four-stroke combustion cycle to convert gasoline into motion. The four-stroke approach is also known as the otto cycle

Chapter 1 Introduction to the cell Learning Objectives 1. About Cell Biology 2. Look briefly at the history of cell theory; 3. Consider the basic properties of cells; 4. Compare some characteristics of two different classes of cells: prokaryotes and eukaryotes; 5.comprehend a special life: viruses

Content The“core Uniqueness of equilibrium Stability of equilibrium · Welfare

Pre-Reading Activities Text New Word Reading Text A: Language Points .Newspaper Reading .Exercise Check-up .Assignment