查询词典 proton
- 与 proton 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The method is realized by that polyether ether ketone is added into concentrated sulfuric acid to carry out sulfonation reaction, thereby obtaining sulfonated polyether ether ketone, then the sulfonated polyether ether ketone is dissolved in organic solvent, N, N (1)-Carbonyldiimidazole is added to stir for one to three hours, coupling agent is mixed for stirring the reaction for 1.5 to 4 hours, then inorganic crosslinking agent is mixed to react under the temperature of 50 to 80 DEG C. Proton conductors are mixed to continue getting the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors under the temperature. Finally the proton exchange membrane for a direct methanol fuel cell is obtained by that the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors is/are processed through membrane forming, drying and exuviation.
该方法首先将聚醚醚酮加入浓硫酸中进行磺化反应得到磺化聚醚醚酮;然后将磺化聚醚醚酮溶于有机溶剂中,加入N,N′-羰基二咪唑搅拌1~3小时后加入偶联剂搅拌反应1.5~4小时,再加入无机交联剂在50~80℃下反应,然后加入质子导体继续在此温度下反应得到磺化聚醚醚酮/无机交联剂/质子导体的混合溶液;最后将磺化聚醚醚酮/无机交联剂/质子导体的混合物溶液成膜,干燥,脱膜即得到所述的直接甲醇燃料电池用质子交换膜。
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For example of atom of hydrogen, it must be enough surrounding electrons so can be form a "electron space", it could be form gravitation among electron and proton, at first whole gravitation line may acts with proton ,but if the quantity of electron go to much ,every one can got gravitation line from proton would be lower, the gravitation between proton and electron would be drop, when it is reached fixed lever, this power is equal to expulsive force which between electrons , so it would be reach balance, the electron can't much more.
之间形成引力,质子向外发出的引力线本来可以全部同外围电子作用,但是,电子多了,每一枚电子从质子分到的作用引力线便减少,它们同质子间的引力要下降,下降到一定程度,此力等于电子间的斥力,达到平衡,电子便不能再多。
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Methanol molecule participates in the proton transfer process, which takes place by a intermolecular six-membered proton-transfer transition state structure instead of the intramolecular four- membered. Consequently, the activation energy of the proton-transfer process is reduced greatly,resulting in the carbon-carbon bond formation process become the rate-determining step. The results are consistent with Aggarwal's the latest dynamics experiments.
CH3OH分子参与质子转移过程,使得原本通过四元环结构过渡态的质子转移过程通过六元环结构过渡态实现,从而极大地降低了质子转移过程的活化能,碳-碳键形成过程进而成为反应的速度控制步骤,研究结果与Aggarwal等的最新动力学研究成果相吻合。
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The excited-state intramolecular proton transfer tautomerism reaction of 6-methyl-4-hydroxy pyri-midine monomers and dimmers was investigated by the ab initio method with the self-consistent reaction field with Tomas's polarized continuum mode and CIS theories at HF level on the basis of 6-311+G* and 6-31G basis set. By studying the potential energy surface, it was found that the monomer's ground-state proton transfer process together with the excited-state proton transfer process is a molecular system of four energy level, but dimmers were not, which can be used to explain the fact that UV-visible absorption and fluorescence spectra of monomer and dimers all corresponded to quinoid.
采用 ab initio HF理论的组态相关CIS方法和连续溶剂模型PCM,分别在6-311+G*和6-31G水平上研究了6-甲基-4-羟基嘧啶单体及二聚体激发态质子转移的异构化反应;对其反应势能面的研究发现,单体基态和激发态的异构化反应一起可以形成四能级的分子电子体系,而二聚体的却不能,由此解释了单体和二聚体的紫外吸收光谱和荧光发射光谱均对应于酮式构型的原因。
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From top to bottom are plotted: magnetic field strength , component field , radial solar wind speed , proton density , proton temperature , the ratio of proton thermal pressure to magnetic pressure and the
从上到下依次是:总磁场,磁场的分量,太阳风速度,质子数密度,质子温度,质子热压力与磁压力的比值及He++与质子的数密度比值。
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Proton generated from a Cockroft-Walton accelerator in the energy range of 30-100 keV were appropriately collimated and made to pass through a 10 g/cm^2 carbon foil. After Rutherford scattering, proton uniformly irradiated TLDs which were placed at the 20° behind and 20 cm away from the carbon foil. We used a channeltron behind TLD holder as the proton detector.
由Cockroft-Walton加速器提供之质子源,能量在30~100keV间,经准直后通过一10 g/平方公分之碳膜做拉塞福散射,散射后之质子均匀打在置於其后20°的压克力置装器内的热发光剂量计,利用压克力置装器后之一电子倍增器作为量测质子工具。
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Aura: is the bioplasmic energy around an object and life form. It contains divine atom, proton, electron, neutron, light, atom, proton, electron, neutron, anti-proton, photon, anti-electron, antineutron, and also anti-energy and antimatter field.
它含有神性的光,原子,质子,电子,中子原子,电子,中子,原子质子,反-质子,光子,正电子,反中性子,同样也有反-能量和反物质粒子在光环里存反物质粒子反物质粒在和由光环或金场金场组成。
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We have measured the 〓for some proton rich nuclei at intermediate energies on RIBLL. A larger enhancementof 〓 for 〓 has been observed than for its neighbors. The anomalous enhancementin the difference factor d for 〓 compared to its neighboring nuclei and the longtail of the proton density distribution extracted from the measured 〓 support theassumption of the proton halo structure in 〓.
我们在RIBLL上实验测量了中能区一些丰质子核在〓靶上的核反应总截面,第一次从反应截面的角度观察到〓的〓有较大的反常增加,同时通过差异因子的分析及从实验数据中提取核子的密度分布得出〓的质子密度分布有很长的尾巴,即得到了〓具有质子晕结构的实验证据。
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Especially, the proton-proton collisions at beam energies per proton below 2.8 GeV at CSR should be used to measure the strangeness asymmetry and strange form lector, to probe the existence of hyperon and pentaquarks and to find the evidence for the existence of dibaryon d
尤其是通过兰州冷却储存环上限能区附近的P+P反应,研究奇异夸克的不对称性和形状因子,寻找超子激发态和pentaquark的实验证据,发现双重子态的实验事例。
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Two important directions in the development of proton linacs are high current proton linacs (mainly applied in nuclear power field) and compact proton linacs.
当前质子直线加速器发展的两个重要方向是强流质子直线加速器和小型质子直线加速器。前者主要用于核能领域,后者主要用于质子治疗。
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- 推荐网络例句
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As of Tuesday, Google's results were still censored in China.
截至周二,谷歌的搜索结果仍受中国审查。
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In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.
在这一过程中,人的主体性发挥是社会有机体健康发展的灵魂。
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Objective To investigate the relationship between the telomer ase activity and apoptosis in gastric cancer.
目的为了探讨胃癌组织中端粒酶与细胞凋亡的关系。