查询词典 stoichiometry

Thus, the optimal outcome of the reaction can be fully controlled by careful observation of the correct stoichiometry of the reaction partners and the correct reaction conditions.

因此，最佳结果的反应，可以充分控制详查正确计量的反应合作伙伴和正确的反应条件。

near-stoichiometry ; lithium tantalate crystal ; Raman spectrum ; defects

另外，许多实验已经证明SLT晶体在光学应用中有很好的性能

The surface of uranium metal is made of oxide and the distribution of surface layer is: metal/non-stoichiometry oxide/oxide.

铀金属的表面主要为氧化物，其表面组成为：金属-亚化学计量氧化物区-高价稳定氧化物。

The overall stoichiometry has been found to be H2Asc stands for ascorbic acid; Asc stands for dehydroascorbic acid

发现的总化学计量关系如下H2Asc代表抗坏血酸， Asc代表去氢抗坏血酸

Double chain naphthyurea/thiourea piperazine derivatives complex with linear dicarboxylate anions with a high stability constant and 1∶1 stoichiometry of the complex-and the complex was formed through six hydrogen bonds.2 Photophysical behaviors and anion binding of three N,N-dimethylaminochalcone derivatives were studied.

二研究了三种N，N-二甲基氨基查耳酮衍生物的光物理行为及与阴离子的结合能力。4'位不同的取代基-氨基和苯脲基对查耳酮的的分子内电荷转移能力有一定的影响，它们减弱了查耳酮衍生物的分子内电荷转移能力，导致发射光谱蓝移。

Using pure Ti and Ni powders, a promising artificial bone material, nearly equiatomic stoichiometry Ti-Ni shape memory alloys porosity was prepared by combustion synthesis method.

使用Ti、Ni纯元素粉末，用燃烧合成技术制取了近等原子比的多孔Ti-Ni形状记忆合金，一种理想的人造骨骼材料。

Shima D%Haile S M The influence of cation non-stoichiometry on the properties of undoped and gadolinia doped barium cerate Solid State Ionicis , 1997,null

蒋凯%何志奇%王鸿燕%梁宏伟%孟建%任玉芳%苏锵 BaCe0.8Ln0.2O2.9(Ln=Gd， Sm， Eu)固体电解质的低温制备及其燃料电池性质 10.3321/j.issn：1006-9240.1999.04.010 中国科学B辑， 1999，04

Among them,the chemosensory properties of two molecular tweezers derived from diethoxycarbonyl glycoluril for metal ions were studied by fluorescent spectroscope.It was found that they both exhibited selective recognition towards Fe~(3+)among 13 metal ions investigated in DMF/CH_3OH(50:1, v/v)with fluorescence quenching,and formed 1:1 stoichiometry complex with Fe~(3+).

通过荧光光谱滴定考察了其中两个二乙基酯基甘脲分子钳异构体对13种不同金属离子的识别作用，研究表明在DMF/MeOH(50：1 v/v)中，它们能够很好地选择性地识别Fe~(3+)离子，与Fe~(3+)离子形成1：1的复合物并且呈现荧光淬灭效应，可作为Fe~(3+)的荧光化学传感器。

Fluorescence resonance energy transfer analysis of subunit assembly of the ASIC channel Homo-and heteromeric ASIC complexes have been verified by classical methods such as co-immunoprecipitation,or functional assays applying electrophysiology.However,the exact subunit assembly and stoichiometry of heteromeric ASIC channels in living cells are largely unknown.

用荧光共振能量转移方法研究酸敏感离子通道的装配用经典的方法如免疫共沉淀或电生理分析，认为大多数亚单位可以形成同聚体或异聚体复合物，然而关于活细胞中ASICs亚单位装配以及ASICs异聚体中各亚单位分子比的情况并不清楚。

The result indicated that: the amount of the excess HF formed direct ratio to the yield of phosphorus pentafluoride and the optimum amount of the excess HF used is about 35%; the trickling rate of oleum shouldnt make the temperature of hexafluorophosphoric acid exceed 25 ℃ and the amount of oleum is 110% to 125% that of stoichiometry so that the content of phosphorus pentafluoride can be achieved 90%; the time and temperature of heating hexafluorophosphoric acid influenced both the yield and the content of phosphorus pentafluoride, and the optimum time should be about 30 minutes and the proper temperature was 148 to 153℃; when alcohol used asrefrigerant, the content of phosphorus pentafluoride was 94.03%, and the content can be up to 97.38%, provided that using liquid nitrogen as refrigerant.

通过实验发现，氟化氢用量与五氟化磷的产率成正比，最佳过量百分率宜在35％左右；发烟硫酸的滴加速度不能使中间产物温度大于25℃，发烟硫酸用量大于理论量10％～25％时，得到的五氟化磷纯度高于90％；六氟磷酸的加热温度对五氟化磷的产率和纯度均有影响，宜在148～153℃的范围内，加热时间应在30分钟左右；用工业酒精做冷凝介质得到的五氟化磷纯度最高只能到达94.03％，使用液氮做冷凝介质可以使五氟化磷的纯度达97.38％以上。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。