渗透是一种自然现象:水通过半透膜,从低溶质浓度一侧到高溶质浓度一侧,直到溶剂化学位达到平衡。
Osmosis is a natural phenomenon of water through the membrane to high solute concentration from low solute concentration on one side, until the solvent chemical potential balance.
这些化学位移与指纹相似,能够告诉我们有关该结构的某些情况。
These chemical shifts are like fingerprints that tell us something about the structure.
原理包括化学位移和自旋耦合。
给出了该化合物的化学位移数据。
应用氢键缔合模型计算了水溶液中水的化学位。
The model is used to calculate the chemical potential of water.
最后,还介绍了单晶化学位移张量的常规测量方法。
The common methods for measuring single crystal chemical shielding tensor are also discussed.
结果:13例具有化学位移伪影的病灶均证实含有脂肪成分;
Results: In 13 cases the lesions with chemical shift artifacts all contain fat;
并讨论了苯环上不同取代基对冠醚环上各碳化学位移的影响。
The influences of benzine ring's different sub-stituets on the chemical shifts of crown's carbons are also discussed.
与二磷烯比较,分析了它们在核磁共振磷谱中化学位移的变化。
Their changes in 31 P NMR chemical shift compared with diphosphene compounds are analyzed.
本文介绍在FX系列NMR谱仪上完成一维异核化学位移相关实验的方法。
A method for one-dimensional heteronuclear chemical-shift correlation experiments on a FX-series NMR spectrometer is introduced.
对于成对的化合物,酰胺氮上质子的化学位移及紫外光谱亦有助于判断构型。
For the pairs of these compounds, the chemical shifts of protons on amide nitrogen and the UV spectra arc helpful for assigning configuration.
结论:化学位移序列在鉴别脊柱单纯性和病理性压缩骨折方面有较高的应用价值。
Conclusion:Chemical shift technique is helpful to distinguish benign and pathologic vertebral compression fracture.
采用规范不变原子轨道GIAO法,计算它们的1H-NMR和13C-NMR化学位移值。
With the GIAO (gauge-independent atomic orbital) method, the 1H-NMR and 13C-NMR were also calculated theoretically.
对所有共振谱线进行了全面归属,并讨论了不同取代基和环内不同杂原子对化学位移值的影响。
All of the resonance lines were fully assigned and the effects of substituents and heteroatoms in ring on chemical shifts were discussed.
指出,共振核—CF 2—的化学位移不仅受第一、二邻位基团的影响,也受第三邻位的影响。
These results indicated that the chemical shifts of central -cf2 - group are not only affected by the first and the second neighboring groups, but also by the third neighboring group.
金矿质在韧性剪切带中与氧化硅和硫化物形成配合物在深部流体中沿着化学位梯度方向迁移和富集。
In ductile shear zone, the gold is migrated and enriched in deep fluid with silica and sulfide in forms of the complex driven by the chemical potential.
测定了12个标题化合物的核磁共振谱,报道了它们的1h和13C化学位移以及定量分析数据。
NMR spectra of 12 titled compounds are determined. The chemical shifts of 1h and 13c and the data of quantitative analysis are reported.
方法样品经溶解、降解处理后,测定1h -NMR图谱,根据氢的化学位移和响应值,计算样品的脱乙酰度。
METHODS After being dissolved and depolymerized, the sample was determined by 1h-nmr. From the chemical shifts and the intensities of resonances of protons, the degree of deacetylation was determined.
目的:评价SPIR(用于化学位移脂肪抑制的频谱预饱和反转复位技术)与造影增强联合应用在眼眶病变判断中的作用。
Purpose: To evaluate the role of SPIR (a chemical shift fat suppression technique) in the evaluation of orbital lesions, especially when used in conjunction with contrast enhancement.
我希望攻读化学学位课程。
出生于中国吉林省白山市,黄西于1994年赴美,后获得德克萨斯州莱斯大学化学博士学位。
Wong, who was born in Baishan, Jilin province, moved to the US in 1994 to pursue a PhD in chemistry at Rice University in Texas.
而且,如果你觉得他是个脑袋里填满了肌肉的家伙,那么你可要三思了:他还取得了斯德哥尔摩皇家工学院的化学工程硕士学位。
And if you think he is all brawn and no brains, think again; he holds a Masters Degree in Chemical Engineering from The Royal Institute of Technology in Stockholm.
他受过更高的教育,拥有化学博士学位。
我获得了达特茅斯学院的化学理学学士学位。
她拥有化学博士学位。
本图,德国工程师,1990年毕业于波兹曼的蒙大拿州立大学,获化学工程硕士学位,2001年加入科赫-格力奇公司。
Bentu, a German engineer who earned his master's degree in chemical engineering from Montana State University in Bozeman in 1990, joined Koch-Glitsch in 2001.
本图,德国工程师,1990年毕业于波兹曼的蒙大拿州立大学,获化学工程硕士学位,2001年加入科赫-格力奇公司。
Bentu, a German engineer who earned his master's degree in chemical engineering from Montana State University in Bozeman in 1990, joined Koch-Glitsch in 2001.
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