火箭研究

The design of signal processing circuit in this paper can achieve anticipative purpose in the ultrasonic detection receiver of the new rocket depth charge multifunction fuze and it offers definite reference value to farther research of ultrasonic proximity fuze.

本文对接收机信号处理电路的研究设计，能够达到预期的目的，对今后的进一步研究火箭深弹声近炸引信具有一定的参考价值。

ScienceDaily (May 14, 2009)— A research group from Saudi Arabia studied the anti-ulcer properties of the salad herb Rocket, also known as Arugula, species name Eruca sativa.

ScienceDaily （2009年5月14日）——沙特阿拉伯一个研究小组在研究抗溃疡的沙拉药草火箭，种名为芸芥，也被称为芝麻菜。

Finite element method is used in the study of nozzle damping of instable combustion in a solid rocket motor.

应用有限单元法研究固体火箭发动机不稳定燃烧中的喷管阻尼，并用波衰减对比法进行了试验研究。

Firstly the theory of the ultrasonic proximity module in new fuze is analysed. The factors which affect performance of the proximity fuze are studied.

首先分析了火箭深弹新型引信声近炸模块的工作原理，对影响引信声近炸性能的因素作了研究，着重研究了增强超声波探测收机性能的关键技术，即接收机自动增益和信号处理技术。

A technician straps legendary test pilot Scott Crossfield into the cockpit of the X-15 rocket plane before an early test flight. The X-15's maiden flight occurred on June 8, 1959,during which Crossfield was carried aloft in his sleek, black rocket plane beneath the wing of a B-52 from NASA's Flight Research Center.

在一次早期试飞中，一名技术专家用飞行皮带把传奇的试飞员斯科特克罗斯菲尔德固定在X-15火箭推进式飞机的小驾驶室中。1959.6.8，X-15进行了处女航，它挂在一架B-52超级空中堡垒的机翼下从NASA德莱登飞行研究中心起飞，克罗斯菲尔德驾驶着黑色光滑的火箭推进式飞机完成了处女航。

Test method and simulation technology of the non-full loading firing dispersion for multiple launch rocket system are studied. A new test method for reducing rocket consumption in dispersion test of MLRS is presented.

研究了多管火箭非满管射击密集度试验方法及仿真技术，提供了一种新的减少多管火箭密集度用弹量的试验方法。

The high frequency combustion instability in liquid rocket engine LRE is analyti cally studied by usin g CFD methods.The comprehensive model and governing equations for numerical simu lation of high frequency combustion instability are presented.The PISO and MacCo rmack algorithms are compared in this study.Both methods can successfully handle combustion instability analysis.

应用CFD方法对液体火箭发动机中的高频燃烧不稳定性进行了分析研究，建立了液体火箭发动机不稳定燃烧数值模拟的综合模型和控制方程，比较了PISO和Ma cCormack两种算法，得出了两种算法均能成功应用于不稳定燃烧分析的结论。

My children, this is the new weapon I invented. We can use this to send the wolfs to another planet!

带着两个火箭》孩子们，看我研究发明的新武器，我们可以把他们绑到火箭上发射到另一个星球去。

My children, this is the new weapon I invented. We can use this to send the wolfs to another planet!

带着两个火箭》孩子们，观我研究发明的新武器，我们可以把他们绑到火箭上发射到另一个星球去。

At present, electric propulsion technology has been widely applied in space flight missions and ascendant performance of electric thrusters makes them a substitution of traditional chemical propulsion system like monopropellant and bipropellant motors gradually.

中文题名电弧喷射推力器数值模拟与实验研究副题名外文题名 Numerical simulation and experimental study on arcjet thrusters 论文作者汤海滨导师刘宇教授学科专业航空宇航推进理论与工程研究领域\研究方向学位级别博士学位授予单位北京航空航天大学学位授予日期2002 论文页码总数134页关键词电弧喷射推力器火箭发动机电推进推力器馆藏号BSLW /2002 /V439 /3 目前，电推进装置已广泛地用于空间飞行任务，优越的性能使其正在逐步取代单、双组元等传统的化学推进系统。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。