A new method based on the force balance was proposed to simulate the flow hydrodynamics of particles in standpipes under the negative pressure gradient. The influence of drag force was integrated into the gravity term and formed a new variable-equivalent gravity (F-e). The acceleration of ...
A method for treating wastewater wherein the wastewater is introduced in prescribed doses of wastewater to a first treatment zone, establishing a negative pressure gradient using mechanical ventilation within said zone causing exhaust air flow to remove
The model for predicting the width of particulate arching presented in this paper is confirmed by measuring the width of the static arching in hoppers connected to a standpipe with negative pressure gradient, and the effect of various factors, such as the flow functions of the powders, the ...
英[ˈnɛɡətɪv ɪkˈspəʊnənt] 美[ˈnɛɡədɪv ɪkˈspoʊnənt] 负指数;负幂 常用 双语例句 The attenuation of the sound waves leads to anegativeexponentpressure gradient. 随着波长的增大或介质黏度的减小,声波的衰减减缓,压力梯度越小。
thus allowing the pressure gradient from the higher atmospheric pressure to cause air to flow through open airways into the elastic lungs and chest wall. Simply relaxing these muscles allows for recoil of the lungs and chest wall to effect exhalation until higher workloads require the recruitment of...
Enhancement of ferroelectric properties, both spontaneous polarization and Curie temperature under negative pressure had been predicted in the past from first principles and recently confirmed experimentally. In contrast, piezoelectric properties are expected to increase by positive pressure, through polarization...
As in positive-pressure ventilation, flow of air into the lungs is dependent upon a pressure gradient between the mouth and the alveoli. In negative-pressure ventilation (NPV), this gradient can be achieved by lowering the body surface pressure below atmospheric pressure. This requires an interface...
20070038172 Gradient wound treatment system and method 2007-02-15 Zamierowski 20070021698 Process and device for application of active substances to a wound surface 2007-01-25 Fleischmann 20070014837 System and method for use of agent in combination with subatmospheric pressure tissue treatment 2007...
No. 15/879,976, “Ureteral and Bladder Catheters and Methods of Inducing Negative Pressure to Increase Renal Perfusion”, filed Jan. 25, 2018. U.S. Appl. No. 15/879,869, “Catheter Device and Method for Inducing Negative Pressure in a Patient's Bladder”, filed Jan. 25, 2018. U...
4) negative pressure gradient 负压梯度 1. Numerical simulation of an axi-symmetrical shape with anegative pressure gradient 负压梯度轴对称外形数值模拟分析 5) negative density gradient 负密度梯度 6) negative temperature gradient 负温度梯度 1.