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SEA ICE DRIFT MONITORING IN THE BOHAI SEA BASED ON GF4 SATELLITE
GF4 image Sea ice Sift MCC Monitor
2018/5/17
The Bohai Sea is the inland sea with the highest latitude in China. In winter, the phenomenon of freezing occurs in the Bohai Sea due to frequent cold wave influx. According to historical records, the...
New concepts for space-borne monitoring of drift and 3D morphology of cloud fields for weather forecast and climate research
Cloud Height Cloud Drift Stereoscopy
2016/5/20
Cloud screening and tracking by geostationary satellites (GEO) is presently the main information source for estimating cloud
coverage and drift for weather forecast and climate research. The coarse p...
Experimental Observation of Low Noise and Low Drift in a Laser-Driven Fiber Optic Gyroscope
Backscattering drift backscattering noise fi ber optic gyroscope laser phase noise
2015/8/7
We demonstrate that by driving a fiber optic gyroscope (FOG) with a laser of relatively broad linewidth( ), both the noise and the bias drift are reduced to very low levels (0.058 and 1.1 , resp...
Particle drift in turbulent flows: the influence of local structure and inhomogeneity
turbulent structures particle dispersion drift PDF approach
2012/5/31
The way particles interact with turbulent structures, particularly in regions of high vorticity and strain rate, has been investigated in simulations of homogeneous turbulence and in simple flows whic...
Optimum Drift Velocity for Single Molecule Fluorescence Bursts in Micro/Nano-Fluidic Channels
Optimum Drift Velocity Single Molecule Fluorescence Micro/Nano-Fluidic Channels Instrumentation and Detectors
2012/4/24
Photonic burst histograms can be used to identify single protein molecules in micro/nano-fluidic channels provided the width of the histogram is narrow. Photonic shot noise and residence time fluctuat...
Novel Thermal Drift Suppression Method in Channel Switching of Mode-hop-free Tunable Laser Array
Semiconductor Lasers Lasers tunable
2015/6/10
A switching time of less than 40 μs has been achieved for a TDA-DFB laser array with a thermal drift suppression technique using the tuning regions of non-lasing lasers as heaters for temperature comp...
Rational Timber Frame Structure Jointed with Glass Fiber Reinforced Nylon Plate II.Strength properties of drift-pin joints under static loading
GFRP drift-pin timber joint tension resistance shear resistance
2009/11/23
A new drift-pin joint consisting of a glass-fibre-reinforced nylon (GFRP) plate inserted into a slit of the timber with steel pipe drift-pins was designed. In the previous report, basic shear properti...
机身倾斜导致谷物流量传感器零点漂移的补偿（Zero-drift Compensation of Impact-based Grain Flow Sensor for Tilted Combine Harvester）
冲击式 谷物流量传感器 零点漂移
2009/11/3
当联合收获机倾斜时谷物流量传感器因发生严重的零点漂移而导致较大的测量误差。通过对单板冲击式谷物流量传感器的倾斜试验发现，传感器的零点电压与联合收获机的倾斜角度成线性关系，当联合收获机左右倾斜15°时，零点漂移电压达25.4 mV，可能导致-8.3%～28%的测量误差。为了消除倾斜导致的零点漂移，在单板冲击式流量传感器后面增加一个与冲击板结构相同的参考检测板，构成双板差分冲击式谷物流量传感器。倾斜试...
Simulation of Snow Drift and the Effects of Snow Particles on Wind
Snow Drift Snow Particles Wind
2009/9/4
Coupled equations between wind and saltating particles are presented for a stable wind blowing over an infinite plane bed and the equations are solved for a simplified particle-bed impact process. The...
通过计算流体力学软件Fluent的仿真模拟，分析现有双圆弧罩盖喷雾的流场和雾滴运动轨迹，并针对存在的问题提出了罩盖的改进方案。与改进前罩盖喷雾、常规喷雾进行了流场、雾滴运动轨迹和沉积率的仿真对比以及雾滴沉积率的风洞试验对比。仿真结果表明，改进后罩盖的流场有利于雾滴向靶标的沉降，当风速为3m/s时，安装改进罩盖喷雾的雾滴沉积率为76.88％，高于改进前的63.26％和常规喷雾的50.16％。风洞试验...
Experimental Study on Wave-Induced Motions and Steady Drift Forces of an Obliquely Moving Ship
Lateral drift Obliquely Moving
2009/3/30
Lateral drift occurs due to the effects of wind forces and/or wave drifting forces in ships sailing in actual seas.
This paper proves Maruo's wave-drift-force and Newman's wave-drift-moment without using the momentum and energy conservation principles.
This paper provides the reciprocal form on wave-drift-force and moment from momentum theory. In the 1st report we has transformed from the pressure integration on the wetted body surface oscillating i...
The Drift Force Acting on a Floating Body in Waves(3rd report)
Drift Force Floating Body Waves
2009/3/25
The previous research provided reciprocal forms to calculate mean wave drift forces of a freely floating body.The reciprocal form in the near field consists of the gradient of velocity potential and i...
Effect of Crossbanded laminates on the Bearing Properties of Mechanical Joints of Laminated Veneer Lumber with a Drift Pin
crossband LVL bearing properties ductility ratio bearing energy loading speed
2009/3/6
To investigate the effects of crossbanded laminate ratios in laminated veneer lumber (LVL) on its bearing properties, tension-type bearing strength tests of drift-pin joints were made. The LVLs of par...