查询词典 proton

The 1H-NMR spectrum collected on a 200 MHz instrument had a doublet at a chemical shift of 5.88 parts per million which integrated to one proton, a multiplet at 4.19 ppm which integrated to one proton, a singlet at 2.5 ppm which integrated to six protons, a doublet at 1.60 ppm which integrated to three protons, and a broad peak at 0.8 ppm which integrated to two protons.

该核磁共振谱收集在一个200 MHz的仪器有一个双线在化学位移5.88百万分之的综合，以一质子， 1 multiplet在4.19 ppm的综合，以一质子，单在2.5 ppm的综合到6个质子， 1双在1.60 ppm的综合三个质子，和广阔的高峰期， 0.8 ppm的综合两个质子。

A two-proton multiplet at d5.00(2H,m,H-11)and a one-proton doublet doublet at d5.90 could be assigned to an ABC pattern.

一个两质子在d5.00(2H，m，H-11)的多重峰和一个单质子在d5.90 的双峰可以表明该分子是一个ABC的形式。

By systematically analyzing the single particle level and the occupation probability near the Fermi surface,and the rule of nuclear particle number deviations with proton numbers for N =8,20,28,50,82,126 neutron chains within the relativistic mean-field model with BCS theory,we have discussed the stability of the shell structure for the traditional neutron magic in the whole range of nuclear spectrum from neutron line to proton line,and predicted that traditional neutron magic number effect shall possibly disappear only in light neutron-rich nuclei.

在考虑了BCS理论的相对论平均场模型框架内，通过系统研究 N =8，20，28，50，82和126六条同中子素链中每个元素费米面附近的单粒子能级间隔、粒子数占有概率比以及原子核体系的粒子数偏离随质子数的变化规律，讨论了传统中子幻数的壳结构在从中子滴线区到质子滴线区整个核谱上的稳定性，预言只有在轻核的丰中子区域，传统的中子幻数效应才可能消失，并把计算结果和最近的文献报道作了比较。

We proposed a new p-contact scheme using Ti and ITO transparent overcoating on the regular p-contact of the proton-implanted VCSEL and obtain substantial improvement in the kink characteristics and the modulation response of the proton-implanted VCSEL shows a more open clear eye and lower jitter of 35 ps operating at 2.125 Gb/s under 10 mA bias and 9 dB extinction ratio compared to the device without overcoated.

我们提出使用新的p型电极组合，利用Ti和透明电极蒸镀在一般的p型电极上，成功的改善了质子布植的面射型雷射之kink现象，且元件亦能成功的操作在2.125 Gb/s。

Water and proton transport together with water content in proton exchange membrane showed significant effects on the performance of PEM fuel cells.

质子交换膜的水含量及水和质子的迁移对PEM燃料电池的性能具有重要影响。

So, primary proton event can be identified effectively from the hybrid experiment results by use of ANN (with less dependence on interactive model), and a ideal primary proton energy spectrum will be obtained.

因此，ANN方法对模型的依赖性较弱，预计利用这一方法可以有效地分辨出联合实验中的原初质子事例，从而得到一个理想的质子原初谱。

With the increasing of proton concentration, number of proton transport increases at first and then decreases after a critical value.

随着质子浓度的增加，质子输送数随之增加，达一定值后又随之下降。

Additionally, with increasing available lodged proton concentration, number of proton transport approach an equilibrium value after increasing first.

此外，随链容纳质子数的增加，可运动质子数随之增加，达一定值后渐达平衡值。

Fig. 4 The time evolution curves of solar wind speed , proton number density, temperature and the ratio of proton thermal pressure to magnetic pressure at Lagrange point L1 obtained from numerical simulation.

图4。 在拉格朗日点L1处，数值模拟得到的太阳风速度，质子数密度，温度和质子热压力与磁压力的比值随时间的演化曲线。

The non linear regression applied to relation of the proton change number of acid with the proton concentration may improve the precision of pKa determination.

它首先牵涉到有机酸在溶剂中的电离形式[1]，然后是电离平衡常数中活度系数的测定[2]，再者是非水质子溶剂或有机-水溶液中质子浓度的精确测定。

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。