空化作用

将微波处理与超声波辐射技术应用于木材阻燃处理中，利用微波加热处理改善木材构造的渗透性能，利用超声波的空化作用强化阻燃剂浸入性能。

The microwave-treatment technology and ultrasonic radiation technology were applied to soaking wood with fire-retardant . Microwave heating improved the permeation property of wood , and ultrasonic cavitation strengthened soaking performance of fire-retardant .

超声波的空化作用在聚合物化工中的应用

The Application of Cavitation of Ultrasonic Wave in Chemical Engineering of Polymer

CCl4喇曼光谱退偏度在超声空化作用下的变化研究

Change in degree of polarization degeneracy in the CC1_4 Raman spectrum by ultrasonic cavitation

结合冲击断面形貌的SEM分析，认为AT/PP/PC三元复合体系中的增韧机制主要是界面脱粘、空化作用和AT对分散相的增强作用。

Based on the SEM analysis for impact morphology , it is considered that the interfacial voiding and the reinforcement effect of AT on the dispersed phase are the main toughening mechanisms in the ternary AT / PP / PC composites .

结果表明：利用超声波空化作用产生的热点效应，油溶性引发剂偶氮二异丁腈（AIBN）裂解生成自由基可引发St的分散聚合反应。

The research results showed that owing to hot point effects of ultrasonic cavitations , the oil-soluble initiator 2,2 ' - azobisisobutyronitrile ( AIBN ) can produce free radical and initiate dispersion polymerization of styrene .

研究表明，在超声空化作用下，40℃左右超声振动3min，其净洗率可达98%以上，而搅拌清洗仅达65%；

The result of the research proved that the soil removal efficiency in 3 minutes by ultrasound can reach above 98 percent , but it only can reach about 65 percent at 40 ℃ by agitation .

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。

Mechanical mass transfer , heating effect and cavitation effect are physical mechanism .

超声波具有机械传质、加热和空化作用。

Ultrasonic wave has some functions of mechanical mass transfer , heating and cavitation .

目的研究超声空化作用对体外培养细胞细胞膜的生物学效应，探讨声学造影剂增强基因转染的机制。

Objective To investigate the effects of ultrasonic cavitation on cell membrane cultured in vitro .

对于声化学反应机理，现在统一的解释就是超声的声空化作用。

As for chemical reaction mechanism , unified explanation now is the act of ultrasound cavitation .

在植物生理学领域中超声的应用主要是利用了超声的空化作用、机械作用和热效应。

The cavitation and the mechanical function and thermal effect of ultrasound are utilized in these applications .

介绍了超声波的特点及其声空化作用。概括了超声波对纤维高分子物和整理液的作用机理。

With unique characteristics and sound cavitation , ultrasonic wave can exert effect on fiber macromolecule and finishing bath .

发生在皮肤表面附近的惯性空化作用在低频超声增透效应中发挥主要作用。

The inertial cavitations near the surface of skin play important roles in the transdermal enhancement of low-frequency ultrasound .

方法利用超声波的粉碎空化作用，采用化学共沉淀法合成葡聚糖磁性纳米微粒。

Methods Dextran-coated iron oxide nanoparticles ( DCIONPs ) were prepared by ultrasonic and chemical coprecipitation method and the characteristics were evaluated .

根据合成树脂稳定性的特点，选择高频低功率工作状态，以保证树脂不会因为超声空化作用引起破损。

According to the feature of polymeric resin high frequency with low power ultrasound is selected to avoid the breakage of resin .

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。

The results showed that adding nitrogen enhanced the ultrasonic cavitation effect , and ultrasonic cavitation effect accelerated the crystallization process of calcium sulfite .

超声波对IF钢电解钝化试样耐蚀性的影响主要是由超声空化作用、洗脱作用以及升温作用等几个方面来作用的。

The main effect factors of ultrasonic for the electrolytic passivation IF steel were related to the action of ultrasonic cavitation , elution and elevated-temperature .

研究结果表明：超声波在熔体中产生空化作用，对7055铝合金熔体作超声处理能细化晶粒，提高强度，并能大幅度提高其塑性。

The results show that casting after ultrasonic treatment can obtain finer grain with homogeneous microstructure and higher strength meanwhile acquire strongly improved plasticity of the alloy .

超声波的空化作用能够抑制藻类生长，从保护水体生态系统以及超声波技术本身的特点考虑，低频率、低功率的超声波更适合于水体抑藻应用。

Consider of water ecosystem protection and characteristics of ultrasonic technology , low frequency and low power ultrasonic especially suit to control algal growth in water body .

超声波预处理由于功率大、穿透能力强、可引起空化作用等特性而在污泥干燥预处理方面具有独特的优势。

While ultrasonic takes on unique advantages on the sludge drying because of its high ultrasonic power , mighty penetrating capability and the ability of causing cavitations .

柴油和水经过机械乳化器的挤压和剪切作用变成较细的乳化油，然后经超声乳化器的空化作用进一步细化。

Diesel oil and water turned into thin emulsified fuel with the shear and extrusion in the mechanical blenders , and then became thinner with the ultrasonic cavitations .

超声波空化作用产生的微射流可以减少纳米颗粒团聚，提高镀层的性能。

This is because the cavitation bubbles generated by ultrasound can form micro-jetting to inhibit the agglomeration of the nanoparticles and improve the properties of the composite coating .

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。

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 .

介绍了超声波的空化作用，重点讨论了影响空化的因素对产物粒度的影响。

This paper introduces the cavitation of the ultrasonic wave , discusses emphatically on the influence of some factors influencing the cavitation on the grain size of the products .

在蒸馏水中，超声波的空化作用可对芳纶帘线表面进行清洗和刻蚀，消除帘线表面的弱边界层；

In distilled water , the surface of aramid cord was washed and etched by the cavitation of ultrasonic wave to eliminate the weak boundary layer on the cord surface ;

超声波具有波长短，频率高，穿透能力强，能够引起空化作用和雾化作用等特点，广泛应用于超声清洗领域。

Ultrasonics is widely applied in ultrasonic cleaning because of the ultrasonic characteristics of short wavelength , high frequency , strong penetrability , cavitation and atomization effect and so on .

舰船在水上运动及螺旋桨的空化作用会将空气带入水中形成含有大量气泡的气泡幕，运动的气泡幕即尾流。

The ship moving and propeller cavitations , which can take air into water and form bubble film which contains a large number of bubbles , Wake motivation bubble film .

相对于其它利用激光诱导等离子体及空化作用等光机械效应碎石的脉冲激光碎石机，钬激光碎石机具有较大的优势，必将成为输尿管结石的一种重要的治疗手段。

Contrast to other pulse laser lithotrities , which ground on photomechanical effects , such as laser induced plasma and cavitations , Cr , Tm , Ho : YAG laser lithotripter has many advantages .

同时在酸洗过程中施加超声震荡，声流和声空化作用能够去除硅粒表面晶界狭缝处的杂质，因此可以提高酸洗提纯效果。

Ultrasound vibration was used during pickling process and acoustic streaming and acoustic cavitation could remove impurities which were not fully exposed at the slit of grain boundary , so it could increase the effect of acid pickling .

实验中测量并研究有无声空化作用时液体温度、加热表面温度及传热系数的变化，旨在研究声空化参数对自然对流传热的影响。

The temperature of the liquid and test section surface and heat transfer coefficients , with and without acoustic cavitation , were measured and analyzed in order to study the effect of the parameters of acoustic cavitation on natural convective heat transfer .