The Modeling Study of the Cavitation Effect in Brain Tissue during the Brain Deceleration Impact 颅脑减速碰撞中脑组织空化效应的模拟研究
Taking advantage of self-making experimental equipment, hydrodynamic cavitation effect based on phenol degradation has been investigated by experimental study and theoretical analysis. 在研制空化射流实验装置的基础上,采用实验与理论分析相结合的方式,以苯酚溶液为对象,对水动力空化效应进行了研究。
The action of mechanical disturbance of ultrasonic wave on the mass-transfer of electrolyte, the restraint action of ultrasonic cavitation effect on reunion of nano particles and the action of electric pulse parameters on the nucleation and growth of grains have been studied by experiments. 研究了超声波机械扰动效用对电解液传质过程的作用,超声波空化效应对纳米粒子团聚的抑制作用,脉冲电参数对控制晶粒成核及生长的作用。
The mechanism of sonochemical actions were discussed in view of mechanical fluctuation and cavitation effect of ultrasound. 并从超声的机械振动效应、声空化效应等方面分析了声化学的作用机理。
When outlet pressure is constant, increasing inlet pressure could enhance cavitation effect. 当出口压力一定时,升高入口压力可以增强空化效应;
The mechanism of a-Al changing was due to the stirring of electromagnetic vibration and its cavitation effect. 电磁振荡力的搅拌作用和空化效应是α-Al转变的主要机制。
The author compared two differential imaging methods and the influence of cavitation effect on the estimation of IBS value was discussed. 比较了两种获得减影图像的方法,讨论了空化效应对IBS值的影响。
Promoted the direct and quick decomposition of O3 in the cavitation bubbles of O3 because of the high energy conditions produced by the ultrasonic cavitation effect, which resulted in the formation of free radicals; 超声空化效应产生高能条件,促使O3空化泡中的O3直接快速的分解,产生自由基;
It has been widely studied to enhance the effect of images in ultrasonic diagnoses and apply cavitation effect to ultrasonic therapies by using bubbles. 在超声诊断领域中利用微泡的散射特性增强超声成像效果,以及利用微泡的空化效应在超声治疗领域的应用都得到了相当广泛的研究。
Mechanical mass transfer, heating effect and cavitation effect are physical mechanism. 超声波作用的物理机制主要包括机械传质作用、加热作用和空化作用。
Experimental Study on Enhancing Cavitation Effect with Self-resonating Nozzle 自振喷嘴空化起始能力实验研究
Conductance Instrument Design on the RC Oscillation& Examining on Sonic Cavitation Effect 基于RC振荡器的电导仪设计与声空化效应检测
With the collapse of the individual cavitation bubbles, many new cavitation nuclei are generated among which some cavitation nuclei are approaching the resonant frequency of the other frequency cavitation, so the whole cavitation effect is increased by their mutual influence. 在双频超声作用下,各自产生空化过程,当各自空化内爆时,会产生许多新的空化核,这些空化核为另一频率的空化提供了更多与其共振频率接近的空化核;
Combining the natural science fund item "study sonic cavitation effect of physics and chemistry", it introduces a design thought of adopting RC oscillation to realize the accurate measure of conductance and the examining theory of sonic cavitation effect. 结合正承担的国家自然科学基金项目声空化的物理与化学效应研究,介绍了采用RC振荡器来实现电导率精确测量的设计思路和声空化效应的检测原理。
Laboratory and field study of enhancing cavitation effect with self-resonating nozzle under ambient pressure 围压下自振喷嘴空化起始能力试验及应用研究
The unique spatial cutting phenomenon and the supersonic cavitation effect have been pointed out. 分析超声振动切削特有的空切削现象以及超声空化效应。
It is necessary to consider the cavitation effect on the whole hydraulic system analysis. 因此在对整体水力系统的分析中应考虑空化涡带的影响。
In the application, if the intensity of pressure request can be satisfied, the aperture number of the perforation plate should be as big as possible, in order to obtain the best cavitation effect. 应用中在满足压强要求的前提下,穿孔板的穿孔率应尽量大,以获得最佳的空化效果。
The change of cavitation effect was study by adding nitrogen, and the influence of ultrasonic treatment that had different cavitation intensity on the crystallization process was investigated. 研究了通入氮气对超声空化作用的影响以及空化作用的强弱对亚硫酸钙晶粒形成过程的影响。
Comparing the venturi and the orifice, the cavitation effect of the orifice work better. 本文得出在过流面积相同的情况下,文丘里管和孔板相比,孔板的空化效果更好。
The pump and the valve cavitation have the influence to the total cavitation effect. ( 3) The union of the ultrasonic cavitation and the hydrodynamic cavitation has been carried on, and the mutual function effect has been studied. 泵、阀门空化都对空化的总效果具有影响。(3)将超声空化与水力空化进行联合,研究二者之间的相互作用效果。
This paper focuses on the simulation of cavitation effect induced by applying ultrasonic vibration to the aluminum alloy melt. 本文主要对超声波作用于铝合金熔体产生的空化效应进行仿真模拟。
These provide the research background for the work of this paper. Secondly, the physical phenomena of UNDEX is introduced and load forms of shock wave, bubble pulse and cavitation effect are described. 为本论文的工作提供了研究背景。第二,介绍了水下爆炸的物理现象及其载荷形式:冲击波、气泡脉动和空化效应。
Reed whistle nozzle size on the cavitation intensity of impact, with the nozzle length and the thickness ratio increases, the cavitation effect of strengthening. 喷嘴尺寸对簧片哨的空化强度有影响,随着喷嘴长度与厚度比值的增加,空化效果加强。
Underwater explosion loads include the shock wave, bubble pulse and cavitation effect. 水下爆炸载荷一般包括冲击波、气泡和空化效应。
There are three kinds of heat effects including friction heat effect, viscoelastic heat effect and ultrasonic cavitation effect. 理论分析了聚合物超声波熔融塑化的本质机理,得出塑化过程中主要存在三个产热效应,即摩擦生热效应、粘弹性热效应和超声空化效应。
The results showed that adding nitrogen enhanced the ultrasonic cavitation effect, and ultrasonic cavitation effect accelerated the crystallization process of calcium sulfite. 研究结果表明通入氮气能够增强超声空化作用;超声空化作用对亚硫酸钙晶粒形成过程起促进作用。
So, if the targeted carrier role of microbubbles and the cavitation effect of ultrasound can be combined effectively, a novel potential therapeutic paradigm will be developed for preventing RS and have great promise for clinical applications. 因此,如果能将微泡造影剂的靶向载体功能和超声空化效应本身的生物学效应有机地结合起来,将为临床防治RS开辟一个新途径。
The length of cavitation region has very tremendous influence to the cavitation effect, and the length must enough long to be able to produce very good cavitation effect. 可产生空化区域的长度对空化的强弱具有很大的影响,长度要足够长才能产生很好的空化效果。
Up to now, the positive and negative effects brought by cavitation effect become bigger and bigger, which cause the attention of scholars. 目前,空化效应所带来的正面和负面的影响越来越大,引起诸多学者的重视。