Numerical simulation and experimental study of gas transport in the upper corner of mining face under pulsed ventilation;
脉冲通风条件下上隅角瓦斯运移数值模拟与试验研究
The rules of movement of gas in the stagnant area in the mine openings under pulsed airflow conditions are deducted on the basis of fundamental physical laws.
从物理学基本定律出发,推导出了脉冲风流条件下矿井井巷空间“静止区”气体的迁移规律,建立了脉冲风流条件下“静止区”瓦斯的扩散数学模型,并且以实验对其进行了验证研究结果表明,脉冲风流法是一种高效、可行的处理和防治瓦斯在井下各个“静止区”积聚的新方
A method based on linear vibration theory is presented in this paper, aimed at resolving the inertial compensation problem for some special models which cause two or more vibration modes that lie in the critical frequency range in impulse wind tunnel force tests.
为解决在高超声速脉冲风洞中进行大长细比等特殊模型测力实验所面临的惯性补偿问题,笔者提出了多加速度计振动分离惯性补偿方法。
Characteristic of wind pressure pulse is one of the most important behaviors of wind pressure fluctuation.
大跨度平屋盖表面的风压脉冲特性是屋盖风压脉动特性的一个重要表现形式,基于大跨度平屋盖结构的风洞试验研究,结合风压脉冲的形成机理及利用过界峰值法研究屋盖表面风压脉冲对风压脉动的贡献及其出现的频率和峰值的大小,并从中找出反映大跨度屋盖结构的风场绕流特性和风压脉动特性的一些规律。
The feasibility of pulse ventilation in modem office is investigated in this paper in theory and through experiment, and it realizes the air ventilation personality in different controlled zones in modem office.
脉冲送风方式,不同于传统空调送风风速稳定的模式,有利于改善人体的热舒适性和健康状况。
The Design of the Aerodynamics and Structure of a Large Pulse Tunnel;
一座大型脉冲风洞的气动及结构设计研究
Simulation of downburst and its loads with wind tunnel test
雷暴冲击风模拟及其荷载的风洞试验研究
Study on Investigation of Underground Karst Cave with Pulse Electromagnetism Method
瞬变脉冲电磁法探测地下岩溶洞穴研究
The Implement of MMSE Pulse Compression of Wind Profiler Radar
风廓线雷达MMSE脉冲压缩的实现
They have discovered now, previou sly unimagined objects-pulsars, quasars, and black holes.
他们发现了以往想象不到的新客体——脉冲星、类星体和黑洞。
full scale wind tunnel
整车风洞或全尺寸风洞
It is used in measurement of pressure tronsients, such as in shock tubes, wind tunnels, and seismograph equipment.
它广泛用于瞬态压力测量,如冲击管、风洞以及地震仪器设备中。
Research on Smart Pulse Charging Technology in Wind/Solar Hybrid Power System
风光互补发电中蓄电池智能脉冲充电技术研究
Numerical simulation of magnetospheric ULF waves excited by positive and negative impulses of solar wind dynamic pressure
太阳风正负动压脉冲激发磁层ULF波的数值模拟
Comparative Study of Effects of Pulsed Electric Field (PEF) and Ultra-high Temperature (UHT) Processing on Flavor Compounds in Milk
高压脉冲电场对牛奶中风味物质的影响
Case Analysis of a Severe Pulse Thunderstorm Triggered in the Outflow of the Previous Thunderstorms
一次雷暴冷出流中新生强脉冲风暴的分析
pulse generator
脉冲发生器脉冲振荡器
impulse register
脉冲寄存器脉冲计数器
Colliding black holes, collapsing stars, and spinning compact celestial objects such as pulsars create ripples in the fabric of space and time that subtly distort the world around us.
黑洞碰撞、星坍缩以及自旋脉冲星所激起的时空结构波动,微妙的扭曲了我们周围的世界。
A new type of cryogenic tunnel-injection cryogenic tunnel with heat exchanger
低温风洞新形式——换热引射式低温风洞
The rabbit dived into its hole.
兔子突然冲入洞里。
Design and Temperature Drift Test of Pulse Modulation Constant Temperature Difference(CTD) Control Circuit of Thermal Flow Sensor
脉冲调制型恒温差风速计控制电路的设计及其温漂特性测试
Investigation on Increasing the Combusion Efficiency of FBC by Means of Pulsating Gas Flow
应用脉冲鼓风来提高沸腾炉燃烧效率的研究(基础试验部分)