1)  SV300
SV300
1.
THE APPLYING OF SV300 SURVEY SOFTWARE TO RELIEF MAP SURVEYING;
SV300测绘软件在地形图测绘中的应用
2)  SV300 measuring and drawing software
SV300测绘软件
3)  SV
SV
4)  SV waves
SV波
1.
Amplification of incident SV waves in a layered elastic half-space is analyzed by using direct stiffness method in frequency domain.
采用直接刚度法,在频域内求解了层状弹性半空间中入射平面SV波的场地放大效应问题。
2.
By using Fourier-Bessel series expansion method, dynamic stress concentration of a cylindrical lined cavity in an elastic half-space subjected to incident plane P and SV waves is studied, and the series solution is presented.
利用Fourier-Bessel级数展开法,研究了平面P波和SV波入射情况下,圆形衬砌洞室的动应力集中问题, 并给出了其级数解。
3.
The series solution for the scattering of plane P and SV waves by an underground circular lined tunnel is used to quantitatively analyze the effects of incident wavelength, incident angle, diameter of tunnel, and liner stiffness on ground surface displacement amplification.
利用地下圆形衬砌隧道对入射平面P波和SV波散射级数解答,定量分析了入射波长、入射角度、隧道直径、衬砌刚度等因素对沿线地表位移放大作用的影响。
5)  SV wave
SV波
1.
Motive stress centralization of rectangular bricking cave in flat SV wave reflection;
矩形衬砌洞室在平面SV波入射下的动应力集中
2.
A note on the scattering of SV wave by a hemispherical canyon;
半球形峡谷对SV波的散射解析解
3.
This article concluded the magnification of the scattering and other harmfulness when P wave,SV wave or SH wave incidents in partly irregular sites,such as circular cylindrical canyons,circular-arc sedimentary valley,circular lining tunnel and underground twin cavities.
对在P波、SV波和SH波入射下的局部不规则场地,如圆弧形凹陷地形、圆弧形沉积谷场地,地下衬砌隧道和地下双洞室造成的散射以及由此产生的放大及其他危害作用做了大致的概括。
6)  B/S
B/SV
参考词条
补充资料:3-(4-methylpiperazinyliminomethyl)rifamycin SV
分子式:C43H58N4O12
分子量:822.96
CAS号:13292-46-1

性质:橙红色片状结晶或砖红色结晶粉末。在183-188℃分解。易溶于氯仿和二甲基亚砜,溶于乙酸乙酯、甲醇和四氢呋喃,溶于水(pH<6)、丙醇和四氯化碳。干燥粉末可稳定5年以上,其水溶液在室温10h失效,但加入还原剂(如抗环血酸)可减少分解,在二甲亚砜中极稳定。

制备方法:利福平是利福霉素SV的半合成衍生物。将利福霉素SV氧化成利福霉素S,再与甲醛、叔丁胺进行甲酰化反应生成3-甲酰基叔丁胺利福霉素S,然后用维生素C还原、与1-甲基-4-氨基哌嗪缩合而得利福平。

用途:广谱抗生素。对结核分枝杆菌、革兰氏阳性菌和部分革兰氏阴云性菌都有抑菌或杀菌作用。主要用于耐药结核植菌和耐药金葡菌的感染,对麻风病也有一定的疗效。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。