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[期刊论文] 作者:郭娟,董成,高红,闻海虎,杨立红,曾富,陈红,, 来源:Chinese Physics B 年份:2008
The crystal structure and the superconductivity for samples Mg(B 1-x C x) 2 (0 ≤ x ≤ 0.09) prepared by...
[期刊论文] 作者:马清钧,周建光,于秀琴,刘传暄,熊凌霜,徐永强,黄翠芬, 来源:Science in China,Ser.B 年份:1989
The cloning in E. coli of a cholerae toxin gene that is A~-B~+ has been successfully constructed by using...
[期刊论文] 作者:何葆光,JOSEPH L. MELNICK,ALEEM SIDDIQUI,WILLIAM S. ROBINSON,SIMON W. LAW,EUGENE C. LAI, 来源:Science in China,Ser.B 年份:1985
Hepatitis B virus surface antigen (HBsAg) inRNA has been enriched from a hepatoma cell line (PLC/PRF/...
[期刊论文] 作者:, 来源:Acta Pharmaceutica Sinica B 年份:2016
Acta Pharmaceutica Sinica B(APSB)is now indexed by Thomson Reuters Web of Science:Emerging Sources Citation...
[期刊论文] 作者:杨才荣,, 来源:数学教学通讯 年份:1998
对于不等式|a|-|b|≤|a+b|≤|a|+|b|,高中教材的证明如下: ∵-|a|≤a≤|a|,-|b|≤b≤|b|,∴-(|a|+|b|)≤a+b≤|a|+|b|,即|a+b|≤|a|+|b|,(...1)又 a=a+b-b;|-b|=|6|,由(1)得|a|=...
[期刊论文] 作者:高小霞,王镇棣, 来源:Science in China,Ser.B 年份:1988
The polarographic behaviour of eriochrome azurol B (ECAB), one of complexing agentsof rare earths (RE...
[期刊论文] 作者:Jingzhe Fan,Weixia Shen,Zhuangfei Zhang,Chao Fang,Yuewen Zhang,Liangchao Chen,Qianqian Wang,Biao Wan,Xiaopeng Jia, 来源:中国物理B(英文版) 年份:2021
By doping titanium hydride(TiH2)into boron carbide(B4C),a series of B4C+x wt%TiH2(x = 0,5,10,15,and 20...
[期刊论文] 作者:贾爱群,李湘,谭宁华,刘小烛,沈月毛,周俊,, 来源:中国科学(B辑 化学) 年份:2005
Pseudostellariaheterophylla提取分离的粗酶PH-1,以链八肽NH2-Gly1-Gly2-Leu-Pro-Pro-Pro-Ile-Phe-COOH(4)为底物成功地进行了太子参环肽B(...
[期刊论文] 作者:陈星春, 来源:中学教研 年份:2002
在高中数学教材中有定理||a|-|b||≤|a±b|≤|a|+|b|,其中||a|-|b||≤|a+b|,||a|-|b||≤|a-b|,|a+b|≤|a|+|b|,|a-b|≤|a|+|b|取等号的充要条件分别是...
[期刊论文] 作者:Bao Lei,Yu-Yang Zhang,Shi-Xuan Du, 来源:中国物理B(英文版) 年份:2019
Freestanding honeycomb borophene is unstable due to the electron-deficiency of boron atoms.B2H2 monolayer...
[期刊论文] 作者:于吉涛,, 来源:数码世界(B版) 年份:2007
作为一款 A3幅面的喷墨打印机.B8338的机身设计非常紧凑,放在任何地方都不会显得突兀。B8338的做工非常不错,机身的银色喷漆以及顶盖的黑色设计在感观上都很舒服.不过.其顶...
[期刊论文] 作者:汪垣,王少芹,冯宗铭,钟武威,孔玉英,李载平,陆选永,姚光弼, 来源:Science in China,Ser.B 年份:1990
The expression and secretion of preS containing hepatitis B surface antigen in vaccinia virus system...
[期刊论文] 作者:杨雄里,徐列卫, 来源:Science in China,Ser.B 年份:1992
Changes in electroretinographic b-wave in the presence of background lights of increas-ing intensity...
[期刊论文] 作者:Zhang Xiao-tu,Teng Bin,LIU Zu-, 来源:水动力学研究与进展B辑 年份:2003
A numerical computation method based on B-splines is presented for the hydrodynamic interaction forces...The B-spline functions are adopted to...
[学位论文] 作者:c Bích,, 来源:上海外国语大学 年份:2018
语言学界对越南语是否存在被动句一直具有不同看法,有人认为越南语具有被动句且“b?”和”???c”是越南语被...
[期刊论文] 作者:Zhen LEI, 来源:数学年刊B辑 年份:2004
classical solutions for a system of equations concerning an incompressible viscoelastic fluid of Oldroyd-B...
[期刊论文] 作者:朱金豪,金磊,金哲欢,丁广飞,郑波,郭帅,陈仁杰,闫阿儒, 来源:中国物理B:英文版 年份:2021
We investigate the effects of post-sinter annealing on the microstructure and magnetic properties in B-lean...Nd–Fe–B sintered magnets with different quantities of Nd–Ga intergranular additions....
[期刊论文] 作者:张青来,肖富贵,郭海铃,A B Bondarev,B I Bondarev,, 来源:稀有金属材料与工程 年份:2009
利用热拉伸试验、气胀成形、金相显微镜和扫描电镜,研究AZ31B镁合金薄板热拉伸性能、气胀成形性能及其组织结构。结果表明:在变形温度为425℃,应变速率为1.0×10-3~6.6×10-5s...
[期刊论文] 作者:陈春城,李静谊,赵伟,赵进才,万立骏,许宜铭, 来源:Science in China(Series B) 年份:2003
Using 12-tungstosilicic acid (SiW124-) as the catalyst, rhodamine B (RhB) dye in an aerated aqueous solution...
[期刊论文] 作者:赵永利,舒碧芬, 来源:Science in China(Series B,Chemistry) 年份:2002
The microscopic visualization experiment on the formation process of HCFC-141b refrigerant gas hydrate...
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