质子

The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

Femtosecond time-resolved studies using fluorescence depletion spectroscopy were performed on the vibrational relaxation; orientational relaxation and the intermolecular energy transfer of dye molecules in solutions under different conditions. The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

This study shows that, for currently known photospheric elemental abundances, the flow properties of heavy ions cannot be inverstigated independently of those of the bulk proton-electron solar wind when the energy transfer between them becomes significant.

这个研究表明：对于目前已知水平的光球层重离子丰度，重离子的流动性质不能孤立于电子－质子等离子体而单独研究。

The invention is characterized in that phthalide of general formula, wherein n and X have the meaning cited in the description, is reacted with nitrogen heterocycles of general formula: H-Z, wherein Z has the meaning cited in the description, or with nitrogen heterocycle metal salts of general formula in the presence of an aprotic polar diluent and optionally in the presence of a basic auxiliary reaction agent.

本发明涉及制备通式的2－杂环基甲基苯甲酸衍生物的新的方法，其中n、X和Z具有说明书中给出的意义，该方法提供高收率和高纯度，其特征是，通式的2－苯并呋喃酮，其中n和x具有说明书中给出的含义，与通式的氮杂环：H－Z，其中Z具有说明书中给出的意义，或与通式的氮杂环的金属盐在质子惰性极性稀释剂中并任选在碱性反应助剂存在下反应。

Results show that protons are liberated by dehydration or dehydroxylation after calcination at 500℃. These protons disrupt the silicon-oxygen-aluminium bridges where there are Al substitutions in the tetrahedral sheet of the montmorillonite. Some of silicon-oxygen and aluminum-oxygen tetrahedral invert to react with the pillaring agents and yield covalent bonds which firmly fix the pillars to the host clay. The Al-MMT are thermally and hydrothermally stable up to 700℃.

经过500℃高温焙烧后，交联剂经脱水或脱羟基释放出质子攻击蒙脱土四面体层中Si-O-Al四键，硅氧四面体和铝氧四面体发生翻转，与交联剂发生反应生成共价键，形成稳定的层柱黏土材料，在700℃高温下，Al-MMT材料不仅具有较好的热稳定性，而且具有较好的水热稳定性。

In aprotic solvents magnesium effects pinacol reductive coupling of aldehydes and ketones.

在非质子性溶剂，镁对频纳醇与醛和酮的还原耦合反应也有一定效果。

Study of PES-PAN blending membrane ;2. The blending membrane s of perfluorinated sulfonic resin with polyvinylidene fluoride were prepared by the method of solution casting.

为了降低质子交换膜的成本，选用聚偏氟乙烯和全氟磺酸树脂为原料，采用溶液-浇铸法制备了全氟磺酸树脂/聚偏氟乙烯的共混膜。

On the basis of the correct understanding of porphine structure, the S4 axis of protonated porphine is obtained first in theory by MP2 and B3LYP methods considering electron correlation energy, which is in agreement with crystal analysis experiments.

在正确认识卟吩结构的基础上，选用考虑电子相关的MP2和B3LYP方法，从理论上得到质子化卟吩的S轴，与晶体衍射实验的结果一致。

Porphyrins is a general term of the homologue and derivative of porphine with substituting groups at the outside ring, becoming metalloporphyrins promptly after two protons on its nitrogen are replaced by the metal ion.

卟啉是卟吩环外带有取代基的同系物和衍生物的总称，当其氮上两个质子被金属取代后即成金属卟啉。

Healthy adults ; Chinese ; precentral gyrus ; proton magnetic resonance spectroscopy

健康成人；中国；质子磁共振波谱；中央前回

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。