查询词典 mev

The differential and partial wave scattering cross sections of Ne-H2(D2,T2) collisions have been calculated by close-coupling approximation method using Tang-Toennies potential model at the incident energy of 83.8 meV.

使用密耦近似（Close-Coupling）方法、采用Tang-Toennies势模型计算了惰性气体原子Ne与H2分子及同位素D2分子在碰撞能量为83.8 meV时的微分散射截面及分波截面，并与实验值和文献值进行比较。

There may be some extremly narrow resonances with massless than 2.6 Gev and width less than 0.1 MeV.

在质量小于2.6GeV的区域可能出现宽度不足0.1MeV的极窄共振。

The differential emissivityfrom 100 MeV to 10 GeV agrees with calculations based on cosmic ray spectra consistent with those directly measured, at the 10% level.

从100 MeV到10 GeV的微分发射率与根据直接测量的宇宙线能谱计算的结果在10%的水平上相一致。

This constitutes the first detection of orbital periodicity in high-energy gamma rays (20 MeV-100 GeV, HE).

这是在高能伽玛射线波段(20 MeV-100 GeV)首次探测到轨道周期性。

The features and the formation mechanism of the individual damage induced by the energetic ions with a wide energy range from MeV to GeV were studied systematically.

在广阔的能区内系统地研究了荷能离子轰击固态材料形成孤立损伤的形态及其形成机理。

The method comprises:(1) weighing lead acetate hexahydrate and thioacetamide, and preparing aqueous solutions respectively, so that the concentration ratio of Pd2+ to S is 1:(1-4);(2) adding acetic acid into thioacetamide solution to adjust the pH value to 2-4;(3) adding poly surfactant into lead acetate solution, ultrasonicating to mix uniformly and obtain a colorless and transparent sol;(4) mixing the sol and thioacetamide solution;(5) placing the mixed solution in a sealed container, irradiating by 2.5 MeV and 40 mA electron accelerator with irradiation dose of 25-40 Mrad;(6) washing the product, centrifuging for separation, and drying to obtain black PdS nanoparticles.

本发明方法的工艺过程如下：首先称取一定量的六水合醋酸铅和硫代乙酰胺，各自配制成水溶液，其浓度比为使其中的铅离子浓度与硫原子浓度的比例为1∶1～1∶4；在硫代乙酰胺溶液中加入适量醋酸调节其pH值至2～4；醋酸铅溶液中加入少量表面活性剂聚乙烯醇，然后超声振荡，混合均匀，制成无色透明溶胶；随后将溶胶与上述的硫代乙酰胺溶液混合；将该混合液置于密闭容器中，并将其放置于2.5MeV、40mA的电子加速器产生的电子束辐照下进行辐照处理，其辐照剂量为25～40Mrad；然后将反应生成物清洗，并用高速离心机离心分离，然后干燥，最终得到黑色纳米硫化铅颗粒。

Angular distribution for scatterings of 3He、4He、6He and 7He with hydrogen bromide molecules are calculated by using close-coupling approach from the anisotropic intermolecular potential of the He-HBr system established by the author. The calculations are performed separately at the collision energies of 60 and 100 meV. The influences of He isotope atoms on angular distribution is discussed in detail.

基于作者构造的He-HBr体系的各向异性势，采用密耦方法计算了碰撞能量分别为60和100 meV时3He、4He、6He和7He被HBr分子散射的角分布，详细讨论了氦同位素对散射角分布的影响。

The change of electrical performances of 1 MeV electron irradiated silicon-germanium heterojunction bipolar transistor and Si bipolar junction transistor was studied.

研究了 1 MeV 不同剂量电子辐照前后 SiGe 异质结晶体管的直流特性，并与 Si 双极晶体管进行了比较。

of growth temperature, accompanied by a slight linewidth variation from 71 to 74 meV as the temperature varies from to .

几乎不随长晶温度改变，而光谱的半高宽随著温度的上升也只有些微的从？

Crops of Brassica napus L., Linum usitatissmum L., Allium fistulosum L. and Lens culinaris Medic. were irradiated by 80 MeV/u 12C6+ ion beams with doses of 30, 90 and 180 Gy. The germination rates and heights of seedlings of M1 and M2 generation of these four plants were studied.

以能量为80 MeV/u的12C6+离子为诱变源辐照油菜、胡麻、大葱和兵豆的干种子后，研究了不同剂量处理对4种农作物M1和M2代种子出苗率及幼苗生长的影响。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。