查询词典 TOF

The TOF MS studies of the transition metal / nonmetal cluster ions and Potassium Cyanide cluster ions

在STO-3g*基组下对〓和〓的结构优化和振动频率分析计算表明它们都有〓对称性的稳定结构。

Photoelectrons ejected from the surface of a stainless steel target under irradiation of a pulsed laser beam can be used to excite and to ionize the gas species in the ionization zone, which is between the extractor and the repeller plates.

当不锈钢靶表面被一束超短脉冲激光束照射时就会产生光电子，用这些光电子轰击TOF质谱电离区中的气体使其电离。

Therefore, the value of two-dimensional echocardiography (2DE) to assess the right ventriciular outflow in 21 children (Aged 2 years to 13 years, mean 6+/- 3.3 years)with TOF was studied using a new subcostal ...

先探查剑下大动脉短轴切面再将探头顺钟向转动并将探头稍前翘，可见升主动脉长轴切面，该切面类似于右心造影右前斜位投影。

We mainly detected the TOF and angular distribution of photofragment, and get the anisotropy parameter β and the translational energy distribution. In addition, we calculated the geometries of the ground states, the excited states and the triplet excited states, and the transition electric dipole moments. According to these, the dissociation lifetimes of some molecules are calculated.

主要是探测了光解碎片的时间飞渡谱和角分布并通过前向卷积方法拟合得到了各向异性参数β和光解碎片的平动能分布；此外还用从头计算方法计算了反应物分子的基态、激发态、三重激发态的平衡几何构型和分子的跃迁偶极矩并据此计算了一部分分子的解离态寿命。

M. translational distribution, angular distribution, and the branching ratios for different possible product channels by measuring the angle-resolved time of flight spectra of photofragments. Information about photodissociation processes such as dissociative lifetime of parent molecule, the orientation of transition dipole moment, and the symmetry change of the highly excited states can be deduced from the translational energy distribution and angular distribution.

碎片平动能谱方法是在无碰撞条件下研究光解动力学的一种理想方法，它通过测量光致碎片在不同角度的时间飞渡谱(Time of Flight，简称TOF)，可以得到光解碎片质心系的平动能分布、角分布和不同解离通道之间的分支比等，由此可以推知母分子的解离寿命、跃迁偶极距的取向以及激发态分子的对称性变化等过渡态的动力学信息。

Photofragment translational spectroscopy is an ideal tool to investigate photodissociation dynamics under collision-free conditions through which one can obtain the total center of mass translational distribution, angular distribution, and the branching ratios for different possible product channels by measuring the angle-resolved time of flight spectra of photofragments. Information about photodissociation processes such as dissociative lifetime of parent molecule, the orientation of transition dipole moment, and the symmetry change of the highly excited states can be deduced from the translational energy distribution and angular distribution.

碎片平动能谱方法是在无碰撞条件下研究光解动力学的一种理想方法，它通过测量光致碎片在不同角度的时间飞渡谱(Time of Flight，简称TOF)，可以得到光解碎片质心系的平动能分布、角分布和不同解离通道之间的分支比等，由此可以推知母分子的解离寿命、跃迁偶极距的取向以及激发态分子的对称性变化等过渡态的动力学信息。

The molecular response in the amoeboid and trophozoite stages of T .vaginalis was elucidated by using a systemic comparative transcriptomics and proteomics approach. We identified 49 differentially expressed proteins by 2-DGE and MALDI-TOF MS.

我们首先建立了阴道鞭毛虫滋养体的标准二维电泳蛋白图谱，再利用比较二维电泳结合质谱的方法找出了49个表现量有差异的蛋白。

The vertex set of the complete graph Tof a graph G is the union of the vertex set of G and the edge set of G,two elements are adjacent in T if they are neighbour elements in G.

全图T是以V和E为顶点集，当T的两个顶点在G中是邻元素时，它们邻接。

M/z 2732 set, it yielded a sensitivity of 91.30%(21/23), a specificity Of 68.18%(30/44), area under the ROC=0.76; m/z 9111 set, it yielded a sensitivity of 52.17%(12/23), a specificity Of 81.82%(36/44), AUC=0.57. Differential proteins were detected from serum of pancreatic cancer. Combination of SELDI-TOF-MS with CM10 protein chips may provides a new proteomics mode for laboratory diagnosis of pancreatic cancer.

结果 发现胰腺癌患者与正常对照、胰腺对照的血清蛋白质指纹图谱有44个差异表达的蛋白质(P.05)，其中m/z 2732敏感性为91.30%(21/23)，特异性为68.18%(30/44)，受试者工作特征曲线下面积=0.76；m/z29111敏感性为52.17%(12/23)，特异性为51.52%(36/44)，AUC=0.57。

The test results indicate that the zincate catalyst systems can accelerate these reactions high-effectively, so its selectivity is up to 100% and TOF is 5472h -1, and the activity and the selectivity of the catalyst are kept in six times, and the catalyst system can be availab.

研究了离子液体助催化的各种无机盐催化剂体系用于二氧化碳和环氧化合物通过环加成反应制备环状碳酸酯，结果表明锌盐催化剂体系能够非常高效地催化该反应，最高得到了 5 472h- 1的催化转化频率和 10 0 %的选择性，催化剂使用六次以后没有发现催化活性和选择性的下降，并且该催化剂体系能够适用于各种结构的环氧化合物。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。