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- The team says that it reduced the lasing threshold by aligning a single QD state with a high quality cavity mode. 该研究小组表示，他们使一个量子点能态对准高Q值共振腔模，藉此降低雷射的阀值。
- The numerical results show that the lasing threshold of an eigenmode depends on the EGDF, different eigenmode has different value of EGDF. 有效增益分布因子描述了光子晶体中增益介质的空间分布特性。
- With suitable design of size and position of the gain medium, higher EGDF can be obtained, which directly leads to a lower value of lasing threshold. 不同的本征模具有不同的有效增益分布因子,那些有效增益分布因子较大的模式具有较低的阈值。
- If the incident proton collides with a proton bound in a nucleus, the threshold energy is lower because the target proton is bound. 如果入射质子是与束缚在原子核内的质子相碰撞，那么阈能会低一些，因为作为靶的质子是束缚着的。
- It is found that in the lower relative kinetic energy region, it is possible to form the long-lived complex CCH and this reaction without threshold energy. 发现在碰撞能低时可以形成长寿命络合物HCC,且此络合反应碰撞是无能的。
- The threshold energy,limiting efficiency and efficiency of stored chemical energy in the system of solar hydrogen photoproduction by water splitting was described. 对太阳能光催化分解水制氢体系的阈值能、太阳能转换效率以及太阳能转化成可储存的化学能效率进行了阐述;
- In photodetectors the wavelength response is not uniform at all wavelengths, but a threshold energy exists, determined by the semiconductor energy gap between bound and free carriers. 光子探测器对不同波长的分光响应是不同的，但是存在一个由束缚和自由载流子之间的半导体能隙所确定的能阈。
- Frombur-dimensional momentum transfonnation，the relativistic expressions of avilable energyand threshold energy are derived，and the Konig theorem in relativistic form is put foeward. 本文利用动量中心系来讨论核反应问题，由四维动量的变换关系导出了相对论性的资用能和阈能的表达式，并提出了相对论形式的柯尼希定理。
- The results show that the crystallization with excimer lasers requires the lowest threshold energy densities.However, it does not create the deepest melt depth, compared with green or red lasers. 结果发现，准分子晶化的阈值能量密度最低，但是在同样的能量密度下，熔融深度却不及使用更长波长的激光器。
- Laser pulse's eye-safe maximal threshold energy 激光脉冲人眼安全阈值能量
- " Test method for continuous lasing threshold, slope efficiency and output power of Nb: YAG laser rods" GB/T11297.;5-1989掺钕钇铝石榴石激光棒连续激光阈值、斜率效率和输出功率的测量方法
- Test method for normal pulse lasing threshold and slope efficiency of Nd: YAG laser rods GB/T11297.;4-1989掺钕钇铝石榴石激光棒长脉冲激光阈值及斜率效率的测量方法
- Influence of Spatial Localization on Lasing Threshold of Quasi-State Mode in One-Dimension Random Media 一维随机介质中准态模式的局域化程度对其阈值的影响
- Effect of the strength of randomness on lasing threshold in one-dimensional partially random media 随机性对部分随机介质激光器阈值的影响
- A Discussion on the Threshold Energy of Nuclear Reaction 对核反应阈能的讨论
- It is possible to transmute one form of energy into another. 把某种形态的能量改变成另一形态的能量是可能的。
- The cabin has a flat stone for a threshold. 这间小屋用一条扁平的石头做门槛。
- The treaty will be the threshold of lasting peace. 这个条约将成为持久和平的开端。
- Young people usually have more energy than the old. 青年人通常比老年人精力充沛。
