2) impulse coupling
冲量耦合
1.
Mechanism and numerical simulation of laser-target impulse coupling in vacuum;
真空环境下激光与固体靶冲量耦合的机理分析和数值模拟
2.
Moreover, impulse coupling coefficients from pulsed with different energy to HgCdTe with different area were calculated by usi.
06μm,脉宽为10ns)辐照大气中不同面积的HgCdTe样品时的冲量耦合系数。
4) Momentum coupling coefficient
冲量耦合系数
1.
The results indicated that the momentum coupling coefficient (C_m) had no obvious change when the pulse energy decreased from 80 J to 24 J.
实验通过采用最大输出脉冲能量为100J的TEACO2激光器,研究了从13~80J的激光脉冲能量对大气呼吸模式激光推进冲量耦合系数的影响。
2.
The mechanism of air-breathing mode has been analyzed systematically and the analytic formulas for the momentum coupling coefficients based on point explosion theory have been derived and improved by considering the restraint of the reflector.
就大气呼吸模式的推进机理作了较为系统的分析和研究,导出了考虑反射面几何约束的冲量及冲量耦合系数的近似解析表达式。
3.
To study the effect of transversely excited atmospheric(TEA) CO_2 laser pulse waveform on the momentum coupling coefficient,the waveform of laser pulse was changed,and the pulse duration was compressed about to 50% by controlling the pressure of the gas and proportion of components in gas mixture.
为了研究TEA CO2激光输出的脉冲波形对激光推进中冲量耦合系数的影响,通过激光技术手段,改变激光混合气体比例及压强,控制激光器脉冲输出波形,将激光的脉冲宽度压缩近50%。
5) impulse coupling coefficient
冲量耦合系数
1.
Influence of air pressure on impulse coupling coefficient of laser thruster;
空气压强对激光推进器冲量耦合系数影响
2.
The research on the impulse coupling coefficient in laser ablation;
激光烧蚀过程中冲量耦合系数的研究
3.
Effects of single pulse energy on impulse coupling coefficient in air-breathing laser propulsion
单脉冲能量对吸气式激光推进冲量耦合系数的影响
6) Impulse instantaneous coupling
冲量瞬间耦合
补充资料:靶扫描和靶重建
靶扫描和靶重建
影像学术语。CT检查中,对扫描野(SFOV)中某一兴趣区扫描时行较大矩阵重建的方式称靶扫描。在扫描及影像重建完成后,对显示野(DFOV)中某一兴趣区重新进行较大矩阵重建成像的方式称靶重建。前者是直接利用扫描野中兴趣区的较大量的原始数据进行影像重建,后者则是利用常规扫描中采集的原始数据进行兴趣区的影像重建。两种技术实现的基本前提都是一次扫描所获得的投影测量数据必须能够满足兴趣区影像重建矩阵所需的信息量。靶扫描在扫描前预先设定兴趣区,成像后不储存非兴趣区原始数据;靶重建则需储存层面扫描所获得的全部原始数据,占用较多的磁盘空间,但以后可在图像中任选兴趣区进行局部重建。两种技术在成像效果(空间分辨率,对比分辨率)上是一致的,这与单纯的局部图像放大(zoom)不同。后者没有增加兴趣区内像素数量,虽使影像扩大但分辨率并未提高,清晰度反有下降。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条