搜索结果: 1-11 共查到“理学 23Na”相关记录11条 . 查询时间(0.046 秒)
Fast production of large 23Na Bose-Einstein condensates in an optically plugged magnetic quadrupole trap
optically plugged magnetic quadrupole trap
2010/11/18
We demonstrate a fast production of large 23Na Bose-Einstein condensates in an optically plugged,magnetic quadrupole trap. A single global minimum of the trapping potential is generated by slightly di...
Crossover from commensurate to incommensurate antiferromagnetism in stoichiometric NaFeAs revealed by single-crystal 23Na,75As-NMR experiments
NaFeAs NMR incommensurate antiferromagnetism 111-type iron arsenide
2010/11/18
We report results of 23Na and 75As nuclear magnetic resonance (NMR) experiments on a
self-flux grown high-quality single crystal of stoichiometric NaFeAs. The NMR spectra revealed
a tetragonal to tw...
用23Na和27Al固体核磁共振研究Na+在γ-Al2O3上的吸附状态。
23Na磁共振成像的初步实验研究
磁共振成像 表面线圈 23Na LC谐振
2009/10/28
介绍了用于23Na磁共振成像实验的收发一体表面线圈的设计、制作原理与实际制作. 用制作的23Na表面线圈在Bruker Biospec 47/30磁共振成像仪上采集了不同浓度NaCl溶液，盐腌制鹌鹑蛋和大鼠头部的23Na密度像，为深入开展23Na磁共振成像的生物医学应用研究奠定基础.
Ba(n,x)134Cs,134Ba(n,2n)133Ba,140Ce(n,2n)139Ce,142Ce(n,2n)141)Ce和23Na(n,2n)22Na反应截面的测量
活化方法 反应截面 (n,x)(n,2n)反应
2009/7/9
用中子活化法相对于54Fe(n,P)54Mn反应,在13.50—14.80MeV中子能区测量了Ba(n,x)134Cs,134Ba(n,2n)133Ba,140Ce(n,2n)139Ce,142Ce(n,2n)141Ce和23Na(n,2n)22Na的反应截面.并将所测的结果和其他作者的结果进行了比较,中子能量是用90Zr(n,2n)89m+gZr反应和93Nb(n,2n)92mNb反应截面比法测...
23Na, 29Si, and 71Ga MAS-NMR spectroscopy of synthetic gallian-fluor-amphiboles
synthetic gallian-fluor-amphiboles magic-angle-spinning nuclear magnetic resonance
2012/3/31
A magic-angle-spinning nuclear magnetic resonance (MAS NMR) spectroscopic study was done
on the series of synthetic gallian-fluor amphiboles to identify the extent of Ga and Si ordering in the
Si MA...
23Na and133Cs NMR T 1 relaxation data for wet paste samples made from illite and either NaCl or CsCl solutions show that there is significant adsorption of the Na and Cs onto the surface. The Na and C...
The Interlayer Collapse during Dehydration of Synthetic Na0.7-Beidellite: A 23Na Solid-State Magic-Angle Spinning NMR Study
Beidellite Dehydration Interlayer collapse 23Na MAS-NMR
2011/12/31
The dehydration and migration of the interlayer cation of the synthetic beidellite Na0.7Al4.7Si7.3O20-(OH)4·nH2O, were studied with solid-state 23Na and 27Al MAS-NMR, heating stage XRD, and thermograv...
多核NMR在相图研究中的应用——Na2SO4-Al2(SO4)3-H2O体系的23Na、27Al NMR研究。
多核NMR在相图研究中的应用——NaCl-NH4Cl-H2O体系的23Na、14N NMR研究。