1932年,匹兹堡大学的 Charles glen King和W.A. Wangh 从柠檬汁中分窩岀一种结晶状物质,在鼠体内具有抗坏血酸 活性,即Vc,1993年,瑞士科学字 Reichstein合成了Vc,包 括抗坏血酸、脱氢抗坏血酸

Longitudinal equations (1-15) can be rewritten as: mu Xuu+ Xww-mg cos 0+ m(w-qUo) =Zuu+ Zww+ Zq-mg sin 000+Z Iyyg =Muu+ Mww+ Mw++ There is no roll/yaw motion, so q 0

Outline Multiple Sequence AlignmentCarillo-& Lipman, Clustal(W) Position-Specific Scoring Matrices(PSSM) Information content, Shannon entropy Sequence logos Hidden Markov Models Other approaches: Genetic algorithms, expectation maximization, MEME, Gibbs sampler

1.激光加工的原理与特点 （1)激光加工的原理 激光是一种强度高、方向性好、单色性好的相干光。由 于激光的发散角小和单色性好,理论上可以聚焦到尺寸与光 的波长相近的(微米甚至亚微米)小斑点上,加上它本身强度 高,故可以使其焦点处的功率密度达到107~1011W/cm2, 温度可达10000℃以上

Part I Listening Comprehension Section a M: Did you see Martha just now? I want to ask her to go with us to the concert tonight. W: She must be around somewhere. You might still be able to catch her. Q: What does the woman mean? I can't bare the air pollution in this city anymore It is getting worse and worse

(I)Halliday d, Resnick r, Krane K Physics 5th ed. John Wiley Sons, 2002 (2)Ford K w. Classical and Modern Physics. Xerox College publishing, 1972 (3)Alonso M, Finn E J. Fundamental

“区位”源于德文的standort,是1882年由W .高次首次提出。区位在1886年被译为英 文“location”。区位同位置不同,既有位, 也有区,还有被设计的内涵。区位的主要 含义是某事物占有的场所,但也含有“位置 、布局、分布、位置关系”等方面的意义

NMR supplement Hendrickson, W-A& Wuthrich, K Macromolecular 16. Leahy, D.J., Aukhil, I.& Erickson, H.P. 2.0 Cell 84 A K.D. thanks the Wellcome Trust and The queens 2D0i9 Riddiough. G. Nature Struct. Biol 18. sakaning. AK Kean. cel l8r.597-605i(eRw& by the Wellcome Trust. The authors acknowledge

例题1:一水平管的管d=0.02m,L=1.5m,平均水温25C 的水W=0.05m/s的速度在管中流动。当壁温为tw=55°℃时, 求对流换热系数

Chapter 5 Data Link Layer Computer Networking: A Top Down Approach Featuring the Internet The PowerPoint Slides are based on the material 2nd edition. provided by Jim Kurose, Keith Ross J.F Kurose and K.W. Ross