The agreement was declared void ab initio.
此协议自一开始就被宣布无效。
How to change a string delimiter in Ab Initio?
如何改变从头字符串分隔符？
Conventional ab initio methods are hard to apply to the large molecular...
而传统的从头计算所需要的计算量太大，很难应用到较大体系。
The structure and chemical bonds of 1-Fluorosiltrane have been studied by ab initio method.
本文用量子化学从头计算方法研究了1-苯基杂氮硅三环的电子结构和化学键。
With such a system one can run short ab initio molecular dynamics simulations for perhaps up to 100 ps.
在这样的体系里面，可以进行一个短的从头算来进行分子动力学模拟，或许可以达到100ps。
The efficiency of gene prediction could be improved by ab initio prediction combined with EST information.
利用这些特征可以提高特定序列中这三类元件的预测效率。
The reaction of HNO with o radical was investigated by density functional theory (DFT) and ab initio methods.
用密度泛函理论(DFT)和从头算方法，对HNO与O自由基反应进行了研究。
The energy bands and density of states were calculated using the VASP(Vienna ab-initio simulation package) program.
在此基础上计算了化合物的能带结构和电子能态密度。
It is very easy to apply this optimization approach to various semi-empirical and ab initio molecular orbital calculation.
该法容易应用到各种半经验的和从头计算量子化学的方法中去。
Ab initio molecular orbital method has been employed, in this paper, to study the mechanism of the hydrolysis of acetylcholine.
本文对乙酰胆碱水解反应历程进行了从头算分子轨道研究。
Ab initio molecular orbital method has been empolyed, in this paper, to study the mechanism of the hydrolysis of acetylcholine.
本文对乙酰胆碱水解反应历程进行了从头算分子轨道研究。
The third part analyzes the genome structure of Arabidopsis thaliana and develops an ab initio eukaryotic gene recognition program.
论文的第三部分是真核生物基因识别和基因组结构分析。
The article elaborates the method of adding pseudo - potential to ab initio calculation to solve problems in multi - electron system.
文章介绍了在从头计算方法中加入赝势来求解多电子体系问题的方法。
Ab initio DFT/B3LYP calculations at 6—31G basis set level were carried out for the possible product radicals of guanine attacked by·OH.
采用密度泛函（DFT）理论中B3LYP方法在6—31G基组水平上对鸟嘌呤（G）受羟基自由基进攻形成的各种可能产物自由基进行几何全优化。
Allen and co-worker did ab initio calculation to test the adequacy of SCF MO calculations for predicting molecular equilibrium geometries.
爱伦及其同事应用从头计算法来考查SCFMO计算对于预示分子平衡几何形的 适宜性 。
The formation energy and electronic structures of the series-connected C60 molecule are calculated by the ab initio density–functional theory.
利用第一原理密度泛函理论计算组装C60形成能和电子结构，用半经典隧穿理论研究了串联C60的电子输运特性。
Ab initio calculations are performed, using a slab model with 6 atom-layers, to investigate the character of clean surface, surface with vacancy.
利用第一性原理赝势法，采用6层原子层的层晶模型研究了完整铜表面、含空位缺陷表面的性质。
By using the ab initio molecular dynamics method, we have studied the structural properties of liquid gallium at high temperature and high density.
采用第一性原理分子动力学方法研究了高温下正常密度和高密度液体镓的结构和性质。
The ab initio prediction of protein structure is to solve a global optimization problem per se, in which the first step is to build a mathematical model.
利用氨基酸序列预测蛋白质结构可以归结为一个复杂系统的全局优化问题，建立一个合理的预测模型是关键性的第一步。
This paper discusses the quantum chemistry ab initio calculation method and some semi-empirical calculation methods frequently used on the electronic structure.
对电子结构计算中常用的量子化学从头算方法及几种量子化学半经验计算方法进行了讨论。
The calculation results for the lattice constant, bulk modulus, cohesive and electronic band structure agree with that results of ah initio pseudpotential method.
对于平衡晶格常数、体模量、结合能和能带结构的计算结果与从头算赝势方法较接近；
We report the Young's modulus of a series single-wall carbon nanotubes (armchair type and zigzag type) and BN zigzag type nanotubes on the basis of ab initio theory.
基于第一性原理计算了一系列单壁碳纳米管(椅型、锯齿型)和氮化硼锯齿型纳米管的杨氏模量。
Two different symmetric configurations in the electronic structure of propadiene molecule are calculated by adopting PSHONDO SCF full electronic ab initio calculation.
采用PSHONDO- SCF全电子从头计算程序，对丙二烯分子的两种不同对称性构型的电子结构进行计算。
To find unknown protein-coding genes, annotation pipelines use a combination of ab initio gene prediction and similarity to experimentally confirmed genes or proteins.
为了找出编码蛋白质的基因，注释流程结合了“从头开始的基因预测方法”和“与已知基因相似性比较”这两种方法。
The calculation results showed that Ab initio had its advantages in the calculating of atom cluster, especially in the aspect of precision and total energy calculation.
计算结果表明：从头计算方法用于原子簇的计算在精度和总能量计算方面有其自身的优势；
The mechanism and kinetics for the decomposition of 3-hydroxy-3-methyl-2-butanone and methyl benzoylformate have been studied by using the ab initio RHF/6 - 31G method.
用从头算的方法在6-31G水平上研究了3-羟基-3-甲基-2-丁酮（1）和苯甲酰甲酸甲酯（2）热分解反应的机理。
The mechanism and kinetics for the decomposition of 3-hydroxy-3-methyl-2-butanone and methyl benzoylformate have been studied by using the ab initio RHF/6 - 31G method.
用从头算的方法在6-31G水平上研究了3-羟基-3-甲基-2-丁酮（1）和苯甲酰甲酸甲酯（2）热分解反应的机理。
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