质子的
- 与 质子的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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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。
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The introduction of cheap protonic acids can accelerate the formation of an active enanmine intermediate and stabilize the transition state by hydrogen bonding. Consequently, catalytic activity and enantioselectivity of the catalysis system are remarkably increased.
价廉易得的质子酸的引入不仅可促进活性中间体烯胺的生成,并可通过形成的氢键稳定反应的过渡态,从而显著提高该催化体系的催化活性和立体选择性。
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To the reaction performed in protonic solvent, the catalytic activity decreased in the turn of methanol, ethanol and isopropanol, the highest TOF (933h〓) was achieved in methanol.
对于质子型溶剂醇中的反应,HCOOH的生成速率的顺序为甲醇>乙醇>异丙醇,在甲醇为溶剂中的反应,HCOOH的TOF值最高,为933h〓。
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Unlike X-rays, the standard radiotherapeutic tool, a proton beam can be tuned in a way that causes it to dump its destructive energy at a particular depth beneath the skin.
不同于X射线这种标准的放射治疗手段,质子束的强度是可以调节的,,它可以在皮下一个特定的深度集中释放具有杀伤力的能量。
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Unlike X-rays, the standard radiotherapeutic tool, a proton beam can be tuned in a way that causes it to dump its destructive energy at a particular depth beneath the skin. This means it can destroy a tumour without damaging other tissue.
与标准的放射治疗手段—— X 射线不同,质子射线的强度是可以调节的,待进入皮下特定的深度之后才一次性释放杀伤性能量,这说明它可以在破坏肿瘤的同时不会造成其他组织的损伤。
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Resultant energetic particles such as electrons and protons rain down near the Earth's poles and impact the air. The impacted air molecules temporarily lose electrons, and when oxygen molecules among them reacquire these electrons, they emit green light.
极光是由来自太阳的高能粒子冲撞地球的磁场所触发的;其结果是高能量的电子和质子在地球的极区附近撞击大气,让被撞击的空气分子短暂失去电子,如果是氧分子重新得回这些电子,就会发出绿光。
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Resultant energetic particles such as electrons andprotons rain down near the Earth's poles and impact the air. Theimpacted air molecules temporarily lose electrons, and when oxygenmolecules among them reacquire these electrons, they emit green light.
极光是由来自太阳的高能粒子冲撞地球的磁场所触发的;其结果是高能量的电子和质子在地球的极区附近撞击大气,让被撞击的空气分子短暂失去电子,如果是氧分子重新得回这些电子,就会发出绿光。
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This Ph.D. thesis describes further studies on theformation of fluorinated phosphorus ylide-anions resultingfrom organometallics and their reactions, stereochemistry andapplications in organic synthesis. We found that inverse stereochemical results wereobserved in the reaction of the fluorinated ylide-anions withvarious proton donors.
本博士论文进一步研究了用有机金属试剂对含氟膦叶立德的亲核加成导致的叶立德阴离子的反应性、立体选择性及其在有机合成中的应用:首次发现含氟叶立德阴离子在与不同的质子化试剂作用时,反应呈现完全相反的立体化学结果。
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Said invention utilizes the control of sulfonation extent of polystyrene sulfoacid membrane and distribution of sulfoacid group to implement modification or polystyrene sulfoacid membrane, on the primise of that the protein conductivity of the membrane is not affected, the permeability of the methyl alcohol in the membrane is reduced, and the alcohol-resistance of membrane material is raised.
通过控制聚苯乙烯磺酸膜的磺化程度和磺酸基团的分布状况来对聚苯乙烯磺酸膜进行改性,在不影响膜的质子传导性能的前提下,降低了甲醇在膜内的渗透率,提高了膜材料的阻醇性能。
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This study suggests that this method not only make a sound foundation for the future computational structural studies with phosphotyrosines involved, but also have potential application to the protonation state determinations of other amino acids with titratable groups.
表明该方法不仅为涉及磷酸酪氨酸的蛋白质相互作用的计算结构研究奠定了基础,在其它具有可电离基团的氨基酸的质子化状态判定中也将具有潜在的推广应用价值。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。