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- positive electron affinity 正电子亲合力
- This paper proposed the quantitative relationship between electron affinity and induced effect. 本文提出了电子亲合力与诱导效应之间的定量关系。
- Its equation can predict the unmeasured values of electron affinity of substituting groups. 并应用其定量关系式预测尚未实测到的取代基的电子亲合力值;
- Negative electron affinity (NEA) photocathode has been developed rapidly and used widely in the short several decades after it had been found because of its excellent performance. 负电子亲和势(NEA)光电阴极，由于其优异的性能，在发现后短短数十年中获得了迅猛发展和广泛应用。
- Both ionization potential (IP) and electron affinity (EA) are very important properties for atoms and molecules, as they are fundamental in assessing the electron donating and accepting ability. 电离势和电子亲合势是原子和分子的非常重要的性质,因为它们能够从根本上估价原子和分子提供电子和接受电子的能力。
- NEA (Negative electron affinity)photocathodes are prepared by evaporation techniques. Two possibilities are discussed in the article: A) to improve the technological standard of existing and prepare NEA photoca-thodes. 用蒸发法制备负电子亲和势(NEA)光电阴极,探讨了两个可能性:(一)改进现有多碱阴极的工艺规范,制备负电子亲和势光电阴极。
- Here,therefore,we have a true radioactivity which is made evident by the emission of positive electrons. 我们因此获得了一种通过排斥正电子表现出来的真正的放射现象。
- Here, therefore, we have a true radioactivity which is made evident by the emission of positive electrons. 我们因此获得了一种通过排斥正电子表现出来的真正的放射现象。
- Electron affinities calculated via Koopmans' theorem are usually quite poor. 分子的第一电离能等于分子最高占据轨道的能量，电子的亲合势等于最低的未占据轨道的负数。
- negative electron affinity photoemitter 负电子亲和力光电发射体
- Later on, we observed that aluminium and boron, when irradiated by alpha rays do not emit protons and neutrons alone, there is also an emission of positive electrons. 后来，我们观察到，铝和硼经a射线轰击，不仅仅排出质子和中子，还排出正电子。
- negative electron affinity photocathode 负电子亲和势光阴极
- Later on,we observed that aluminium and boron,when irradiated by alpha rays do not emit protons and neutrons alone,there is also an emission of positive electrons. 后来，我们观察到，铝和硼经a射线轰击，不仅仅排出质子和中子，还排出正电子。
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- negative electron affinity image intensifier 负电子亲和势像增强器
- Ionization Energy (IE) and Electron Affinities (EA) are expressed as kilojoules per mole. 电离能和电子亲和性表达为每千焦耳摩尔。
- positive electron transmitting tomography 正电子传递断层摄片
- GaN Based Negative Electron Affinity Photocathode 负电子亲和势氮化镓光电阴极
- But the positive electrons produced by aluminium under the action of a source of alpha rays continue to be emitted for some time after removal of the source. The number of electrons emitted decreases by half in three minutes. 但是，在射线动能源作用下铝产生的正电子在动能源撤走后的相当长时间里仍继续被排斥出来，且排出的电子数量在3分钟后减少一半。
