分子体积
- 与 分子体积 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The molecular radius and molar volume in gas, the dipole moment in gas, water and methanol, the sum of negative Mülliken charges and the frontier molecular orbital were also calculated at the same level.
在气相条件下计算了分子的半径及分子的体积,并在气相、水和甲醇介质中计算了分子的偶极矩、分子中原子的Mülliken电荷、分子的前线轨道。
-
An improved hard-sphere model predicted rightly the changing trend of the standard partial molar volume of alkyl chain of amino acids with concentration of electrolyte,and confirmed the assumption that the sum of standard partial molar volume s of CH and CH3 groups is twice as many as the standard partial molar volume of CH2 group.
根据改进的硬球混合物模型,正确预测了氨基酸分子的烃链在电解质水溶液中的标准偏摩尔体积随电解质浓度的变化关系,并证实了"氨基酸分子中CH和CH3基团的标准偏摩尔体积之和是CH2基团标准偏摩尔体积的2倍"这一假定。
-
The results show that the retention time of solute in HPLC is controlled by the molecular radius or molar volume, the dipole moment, the sum of negative Mülliken charges LUMO and the interaction between solution and solute.
结果表明溶质在反相C18柱上的保留值由分子半径或体积、分子的偶极矩、分子的静电力及溶质与流动相分子相互作用力决定。
-
The strong extension and random curling of HA molecule result in tremendous domain, the hydrodynamics volume is ten times larger than the possessing space of its un-hydrated form. Further more, molecule chains twist between each other to form a consecutive reticular structure, which reacts with water molecule via polar bond and hydrogen bond.
HA分子在溶液中高度伸展和随机卷曲构型使其占有很大区域,其流体动力学体积较未水化时所占空间大l0倍,而且分子链之间相互缠绕形成连续的网状结构,水分子通过极性键和氢键与其直接作用。
-
Significant processing steps can include: a phase changes involving either the desired molecule or the solvent, inert carrier or vehicle, e.g., dissolution, crystallization, evaporation, sublimation, distillation or absorption; b a phase separation such as filtration or centrifugation; c any chemical change involving the desired molecule, e.g., removal or addition of water of hydration, acetylization, formation of the salt; d an adjustment of the solution containing the molecule such as adjustment of pH or pO2; e a precision measurement of contained or added BPC components, in-process solutions, recycled materials is performed, i.e., weighing, volumetric measuring, optical rotation, spectrophotometric determinations, etc.; and f changes occur in surface area, particle size, or lot uniformity, e.g., milling, agglomeration, blending.
意义较大的步骤可能会包括:a相变化,包括指定分子或溶剂,惰性载体或溶媒,如溶出作用,结晶,蒸发,升华,蒸馏或吸附;b相分离,如过滤或离心;c涉及指定分子的任一化学变化,如结晶水的除去或添加,乙酰化作用,成盐;d包含分子的溶解的调节,如调节pH或pO2;e 含有或添加原料药组分,过程内溶液,回收物料的精密测量,如,称重,体积测量,旋光度,分光光度测定,等和f 表面,粒度,或批一致性的变化,如磨碎,凝块,混合。
-
The flocculated decolorization of dyes has something to do with their structure.
染料分子的结构对其絮凝脱色的影响研究显示:从能量相互作用来看,染料分子中磺酸基个数越多,其与聚合物絮凝剂PAN-DCD的键合程度越高,染料的脱色率越大;从疏水相互作用来看,染料分子中疏水基团越多,其与PAN-DCD的相互作用越大,疏水基团的体积越大,染料的脱色效果越好。
-
The results of its intrinsic fluorescence spectroscopy and fluorescence phase diagram showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed a partially folded intermediate of Bacillus amyloliquefaciens a-amylase during its unfolding procedure, which followed a three-state model; the result of its fluorescence probe showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed some stable hydrophobic regions, which could interact with a hydrophobic reagent 8-anilino-1-naphthalene sulfonic acid, in the partially folded intermediate of Bacillus amyloliquefaciens a-amylase; and the results of fluorescence quenching using acrylamide and potassium iodide as quenchers showed the distribution of Trp residues in Bacillus amyloliquefaciens a-amylase in different denaturation solution, with the maximum number (8) of tryptophan residues in a partially folded intermediate Bacillus amyloliquefaciens a-amylase molecule could be quenched by potassium iodide; and the results of their protein electrophoresis and SEC showed that no aggregate or aggregate precipitation of Bacillus amyloliquefaciens a-amylase formed during the whole unfolding procedure of Bacillus amyloliquefaciens a-amylase induced by guanidine hydrochloride.
内源荧光光谱和荧光相图结果表明,当变性液中盐酸胍浓度约为1.0 mol/L时,芽孢杆菌a-淀粉酶的去折叠过程中出现一个部分折叠中间体,其去折叠过程符合&三态模型&;荧光探针结果表明,在溶液中盐酸胍浓度约为1.0 mol/L时,中间态芽孢杆菌a-淀粉酶分子中存在着能够与探针分子1-苯胺基-8-萘磺酸结合的稳定的疏水区域;荧光猝灭研究给出了不同程度变性的淀粉液化芽孢杆菌a-淀粉酶中的Trp的分布情况,结果表明中间态芽孢杆菌a-淀粉酶分子中能够被碘化钾猝灭的位于分子表面的色氨酸残基数目达到最大的8个;蛋白电泳和体积排阻色谱结果表明,在盐酸胍诱导的芽孢杆菌a-淀粉酶分子的整个去折叠过程中,不会以共价键或非共价键形式形成芽孢杆菌a-淀粉酶分子之间的集聚体或集聚体沉淀。
-
Through the analysis of De, an alternative mechanism interpreting of the"overshoot"phenomena can be obtained: when the diffusing time of small molecular penetrants is shorter than relaxation time of the involved polymer, small molecular substance penetrates into the polymer quickly and its concentration reached a maximum, then the swelling of the polymer by the small molecules makes the chain structure of the polymer relaxed, thus the free volume in polymer matrix, which is occupied by small molecule, decreased, and will squeeze part of the small molecular substance out of the polymer, and therefore overshoot behavior can be observed.
通过对De的分析,可以得出产生&超调&现象的机理的另一种解释:小分子渗透物质的扩散时间相对于聚合物的松弛时间要短(相当于有个更快的扩散速度),所以小分子迅速扩散进聚合物中达到一个极值,由于小分子物质对聚合物的溶胀,使得聚合物链结构产生松弛,由于聚合物链结构的变化,小分子物质占有的自由体积会减小,这样会挤出小分子物质,使得小分子物质在聚合物中的浓度减小,如果高聚物粘弹性明显,甚至可能出现多个浓度的衰减振荡并达到平衡值。
-
The hydraulic diameter of polymer molecular and the inaccessible pore volume in rocks of different permeability are measured by using the electrical resistivity method.
应用电阻法计数器测定不同相对分子质量聚合物溶液水力学分子直径,并结合原始含水饱和度通过压汞实验确定不同渗透率岩石中的不可及孔隙体积;研究聚合物分子直径与岩石渗透率的配伍关系,进行不同类型油藏聚合物的优选,探讨一种合理选择聚合物分子尺寸和相对分子质量的方法,利于指导油田聚合物驱方案的优化设计。
-
The correlation coefficient of retention time the molecular radius or molar volume, the dipole moment, the sum of negative Mülliken charges and LUMO are more than 0.9957 using multiple linear regression.
用保留时间与分子的半径或分子的体积、分子的偶极矩、分子中总的Mülliken负电荷、分子的最低空轨道能量作多元回归分析,相关系数大於0.9957。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力