离子性
- 网络Ionicity;ionic;electric charge
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合金中La和Ni间存在电子转移,形成了弱的La&Ni键,且带部分离子性;
In alloys , electron transfer exists between La and Ni , thus weakly bond is formed with partly of ionicity .
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提出了一种基于Mulliken布居数的离子性hi的表征方法,在第一性原理计算得到的Mulliken布居数与离子性之间建立了联系。
A new expression of ionicity hi based on Mulliken population was proposed . The relation between Mulliken population and ionicity was set up .
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胺类化合物的离子性指数、极化效应指数与其~(13)cNMR谱化学位移关系
Relationship Between ~ ( 13 ) C NMR Chemical Shifts of Aliphatic Amine Compounds and Ionicity Index , Polarizability Effect Index
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AB型化合物单键离子性百分数的量度
Estimation of the Fraction of Ionic Character for Single Bond in an AB Molecule
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利用激光等离子体软X射线为激励源,首次观察到离子性氟化氩准分子在125nm附近的真空紫外辐射,其实验结果与理论计算值符合很好。
Vacuum ultraviolet radiation from argon fluoride ionic excimer excited by x ray from laser producd plasma was observed near 125 nm for the first time . The experimental results are coincident with the calculated ones .
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研究pH值、不同离子性的表面活性剂和高分子分散剂聚乙烯吡咯烷酮对纳米二氧化钛水分散体系稳定性的影响。
Stability of nano titanium dioxide in water-based disperse system , as well as factors of pH value , various surfactants with different ions and high molecular dispersant polyvinyl pyrrolidone on the stability of disperse system are discussed .
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由于其核的疏水性和离子性特征,PIC胶束不仅能通过疏水作用增容疏水性药物,还能通过静电作用包封离子型药物。
Due to the hydrophobic and ionic nature of the core , the PIC micelles can not only incorporate the water insoluble drug through hydrophobic interaction , but also incorporate ionic drug through electrostatic interactions .
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通过改变溶剂的极性、离子性、离去基团的活性及反应温度等方法,对传统的Pedersen冠醚合成法进行了优化,使目标产物的最高产率达到71%以上。
The traditional synthesis of crown ether was optimized by changing polar and ionic properties of the solvent , activity of leaving group and temperature . The best yield can be over 71 % .
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分子轨道法计算化学键离子性百分数
Calculation of ionicity percentage of chemical bonds with molecular orbital method
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化学键共价离子性的判据
The criterion on the coralent & ionic character of chemical bond
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对共价键的部分离子性估算的讨论
Discussion on the method of estimating partial ionic properties of covalent bond
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的离子性在掺杂后明显增强。
The ionicity of O2-increases with Mg and Al doping .
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用分子轨道理论计算离子性分子键能的尝试
An attempt to calculate ionic molecular bond energy by m.0.theory
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脱墨浆中的水溶性杂质和非离子性表面活性剂不利于PEO/Cofactor助留体系的作用效果的发挥;
Nonionic deinking surfactant impairs the performance of PEO / cofactor system .
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非离子性卫生整理剂SFR&1的应用
Application of Nonionic Sanitary Finishing Agent SFR-1
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结果表明,高温超导材料属于具有部分离子性和部分共价性的晶体。
It shows that the high Tc superconductors are the crystals with both ionic and covalent properties .
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氢化物热力学性质与键的离子性和有效键电荷密度的相关性
Studies on the relationship between thermodynamic properties of hydrides and valence orbital energy , ionicity of bond
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阴离子性及非离子性表面活性剂-临界胶束浓度的测定-利用板、夹箍、环的表面张力测定法
Anionic and non-ionic surface active agents-determination of the critical micellization concentration-method by measuring surface tension with a plate , stirrup or ring
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它具有颗粒小、均匀、较高的催化活性.催化体系加入丁二烯引起电导率下降表明活性中心是正离子性的。
When butadiene was added into the catalytic system the decline of the electroconductivity showed that the active center was the positive ionicity .
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具有高密度,透紫外与可见光,离子性较弱而可望具有很好闪烁性能的重金属氧化物玻璃是人们所看好的高密度闪烁玻璃的发展方向。
Heavy metal oxide glasses with the higher density , excellent transparency over UV and visible region and higher luminescent properties are the best candidate .
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所以非离子性显影剂对于年长的、心肺不足的及有过敏病史的病人特别适用。
For this reason , it is recommended that nonionic contrast medium be used for elderly patients , for the high risk group with cardiopulmonary disorders or for patients with a history of allergy .
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尤其是作为上转换材料,氟化物基质的带隙宽,离子性强,电子云扩张效应小,声子能量低,从而使得稀土离子掺杂的氟化物具有优异的上转换发光性能。
Especially , as up-conversion material , rare earth doped fluoride has excellent up-conversion luminescence property because of the strong ionic , wide band gap , low phonon energy , little electron cloud expansion effect of fluoride matrix .
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Li3VO4的非醇盐溶胶-凝胶法合成及其离子导电性
Synthesis of Li_3VO_4 by Sol-Gel Method and Its Ionic Conductivity
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MO2,M2O5和MO3氧化物对锂硼酸盐玻璃离子导电性的影响
The influence of mo_2 , m_2o_5 and mo_3 oxides on the conductivity of lithium borate glasses
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ZrO2陶瓷的离子导电性及其应用
The ion electric character of zro_2 ceramic and its application
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Li2O-B2O3-V2O5系玻璃的形成、结构与离子导电性
Formation , Structure and Ionic Conductivity of Li_2O-B_2O_3-V_2O_5 Glasses
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分析了钇稳定的二氧化锆(YSZ)的晶体结构及离子导电性。
The crystal structures and ionic conductivity of yttria stabilized zirconia ( YSZ ) are analyzed .
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Li2SO4Li2B2O4,Li2SO4(NH4)2SO4赝二元系相图及离子导电性研究
The phase diagrams of the pseudo-binary systems li_2so_4-li_2b_2o_4 li_2so_4 - ( nh_4 ) _2so_4 and ionic conduction investigation
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高聚物(PEO)_n-CuBr_2薄膜在流体静高压下的离子导电性
Ionic conductivity under high hydro - static pressure in high polymer thin film ( peo ) _n-cubr_2
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cAMP反应元件结合蛋白(cAMPresponseelement-BindingProteins,CREB)是一个哺乳动物转录因子家族,通过cAMP反应元件(cAMPresponseelement,CRE)调节cAMP和钙离子依赖性基因的表达。
CAMP response element-binding ( CREB ) proteins are a family of mammalian transcription activators that mediate cAMP and calcium-dependent gene expression through the cAMP response element ( CRE ) .