1)low intensity ultrasound低强度超声波
1.Study on Bio-effects of Activated Sludge Irradiated by Low Intensity Ultrasound and Its Application;低强度超声波辐射活性污泥的生物效应及其应用试验研究
2.The mechanism of biological activity enhancement of sludge by low intensity ultrasound was investigated based on the sludge characteristics before and after ultrasonic treatment, the impact of different ultrasonic treatment patterns, as well as the effect of addition of the radical scavenger NaHCO3.通过测定超声辐射前后污泥性质的变化,不同处理方式对污泥活性影响以及自由基清除剂NaHCO3加入对超声作用效果影响,初步探讨了低强度超声波辐射对污泥生物活性的影响机制。
3.This work aims to study the enhancement effects of low intensity ultrasound on biological wastewater treatment in low temperature.本研究还以典型的城市二级处理污水处理厂和采用SBR工艺的污水处理厂为例,对低强度超声波在污水处理工艺中的设计和操作进行了说明。
英文短句/例句
1.Experimental Study on Enhancing Wastewater Bio-Treatment with Low Intensity Ultrasound;低强度超声波强化污水生物处理的试验研究
2.Experimental Studies on Biological Effect of Saccharomyces Cerevisiae Under Low Intensity Ultraound;低强度超声波对啤酒酵母生物效应的实验研究
3.Study on the Breakage Mechanism of Activated Sludge by the Combination Action of Low Intensity Ultrasound and Alkaline低强度超声波/碱对剩余污泥破解机理的研究
4.Effects of Low-Intensity Ultrasound on Skin Collagen Expression of Rats低强度超声波对大鼠皮肤胶原蛋白表达的影响
5.Effect of low intensity ultrasound/acid or alkaline combined treatment on activated sludge低强度超声波与酸、碱协同对污泥溶胞的影响
6.Study on Biodegradation of Azo Dye Acid Orange 7 (AO7) Stimulated by Low Intensity Ultrasound Radiation;低强度超声波辐射强化偶氮染料酸性橙7（AO7）的生物降解研究
7.Study on Bio-effects of Activated Sludge Irradiated by Low Intensity Ultrasound and Its Application;低强度超声波辐射活性污泥的生物效应及其应用试验研究
8.Studies on the Degradation of Pseudomonas Aeruginosa Immobilized to LAS (Linear Alkyl Benzene Sulphonate) with Low Intensity Ultrasonic Irradiation;低强度超声波干预固定化细胞降解直链十二烷基苯磺酸钠的研究
9.Study on Effect of Low Frequency and Low Intensity Ultrasound on Leukemic Cell Lines K562 and Human Hematopoietic Cells;低频低强度超声波对白血病细胞K562和人外周血造血干细胞作用的研究
10.Comparative Study of Naphthalene Diogradation with Immobilized Cell and Immobilized Cell Under Low Intensity Ultrasound;固定化细胞与低强度超声波干预下的固定化细胞降解萘的比较研究
11.Experimental Study of Effect of Low-intensity Pulsed Ultrasound on Promoting Fracture Healing of Rabbits;低强度脉冲超声波促进骨折愈合的实验研究
12.ultrasonic bond meter超声波结合强度测定计
13.Effect of Pulsed Low-intensity Ultrasound (PLIUS) on Articular Cartilage Repair in Rabbits;低强度脉冲式超声波对关节软骨修复的实验研究
14.Biological Effects and Cellular Mechanism of Low-intensity Pulsed Ultrasound on BMSCs of Rabbit Cultured in Lginate Beads;低强度脉冲式超声波（LIPU）对体外兔BMSCs的生物学效应及作用机制研究
15.Effects of low intensity pulsed ultrasound on the proliferation and differentiation of rabbit bone marrow stromal cells低强度脉冲超声波对兔骨髓基质细胞增殖和分化的影响
16.Effect of Low-intensity Pulsed Ultrasound on Human Degenerative Lumbar Intervertebral Disc Cells in Vitro低强度脉冲超声波对体外培养人退变腰椎间盘细胞的作用
17.Low intensity ultrasonic treatment to enhance aerobic digestion of excess sludge低强度超声场促进剩余污泥好氧消化
18.The ultrasonic inspection methods for wrought high strength steelsGB/T8652-1988变形高强度钢超声波检验方法
相关短句/例句
low-energy ultrasound低强超声波
3)low intensity pulsed ultrasound低强度脉冲超声波
1.Effect of low intensity pulsed ultrasound on osteogenic potential of rabbit bone marrow stromal cells in vitro;低强度脉冲超声波对体外培养的兔骨髓基质细胞成骨作用的影响
2.Effect of low intensity pulsed ultrasound on repairing bone defect by cell-scaffold complex composed by rabbit bone marrow stromal cells and β-tricalcium phosphate;低强度脉冲超声波影响兔骨髓基质干细胞与β-磷酸三钙复合修复骨缺损的实验研究
3.Low intensity pulsed ultrasound(LIPUS) has special biological effect,more and more experiments in vitro and in vivo suggested that low intensity pulsed ultrasound stimulation could influence cell proliferation,promote cell synthesis protein,influence cytokines release and induce cell differentiation.低强度脉冲超声波具有独特的生物学效应,在体外细胞及体内实验中研究发现能够调节细胞的增殖、促进胶原及非胶原蛋白的合成、影响细胞因子的分泌和诱导细胞分化作用,其在临床治疗活动中已经在骨折,放射性骨坏死的治疗中取得一定成效。
4)low-intensity pulsed ultrasound(LIPUS)低强度脉冲式超声波
1.Objective: To explore the effects of low-intensity pulsed ultrasound(LIPUS) on chondrocyte viability, proliferation, phenotype , function and gene expression of col-II、aggrecan、TGF-β1、TIMP-1、MMP-1mRNA,which control and/or regulate cartilage repaire.目的:研究低强度脉冲式超声波(LIPUS)对体外三维培养兔关节软骨细胞的活性、增殖、细胞表型及功能的影响,并探讨其对软骨修复及基质降解的关键基因col-II、aggrecan、TGF-β1、TIMP-1、MMP-1mRNA表达的影响。
5)Low intensity ultrasound低强度超声
1.Dose effect of low intensity ultrasound on uterine smooth muscle in rats;低强度超声引发大鼠子宫平滑肌收缩的量效关系研究
2.Experimental studies on the influence of low intensity ultrasound on fracture healing;低强度超声促进骨折愈合的实验研究
3.Low intensity ultrasound induced in vitro human postpartum uterine smooth muscle contraction低强度超声诱导人产后离体子宫平滑肌收缩
6)ultrasound intensity超声波强度
延伸阅读
超声波振动拔管超声波振动拔管tube drawing with ultrasonic vibration ehaoshengbo zhendong baguanl超声波振动拔管(tube drawing with ultra-;soni。vibration)在对拔管模或芯棒或同时对两{者施加超声波振动的条件下进行的管材冷拔。超声波振动拔管原理是将高频电谐振通过换能器转换成机械振动，并将振动能量通过聚能器传播到变形区中，改变金属变形的性质和应力状悉，系统框图如图l。实用的振动外模的声传递系统如图2。采用这一传声系统是为了换模方便和不增加锤头长度。振动芯棒的声传递系统如图3。哗孵州僵 图1超声波振动拔管系统框图1爵馗 图2实用声波传递系统 1一外模;2一外套;3一固定点;4一聚能器;5一振子 1 2 5 8 191乒贰令鲁， 4 3 679 图3拔制内凸筋管时超声振动芯棒系统 1、2、3一换能器;4、5、6一聚能器;7一压力轴承， 8一拉杆;9一芯棒，10一外模;n一管料 换能器部件之一的振子是采用镍片叠合而成的。利用磁性材料在外磁场作用下产生微小宏观变形在单方向伸长和缩短，也可能产生体积收缩或膨胀(磁致伸缩效应)，将高频电谐振变为机械振动。处于工作状态的磁致伸缩换能器的等效电路如图4。图中左侧虚线框内是超声波发生器的输出等效电路，由高频正弦激励电源云和内阻抗分组成;右侧虚线框内是换能器的等效电路，坛1、坛:分别为钳定阻抗和动态阻抗。 广一]二~名竺之厂一一， L_兰二十一一一-上一一一士二立_」 图4等效电路 换能器中流过的电流是激励电流I和极化电流10之和。I。是直流电源e提供的恒定常量，激励电流I是正弦交变量。电抗器Lc对I。的阻力很小，而对I的阻力很大，祸合电容C只允许I通过，而不允许I。通过，所以换能器中流过的电流是I和I。。I。在换能器铁芯内产生极化磁场，I产生激励磁场。聚能器为一圆锥体，其长度按振幅分布使端点具有最大的振幅和最小的应力(图5)。 j 图5在聚能器上应力和振幅分布 1一应力，2一振幅 应用超声波振动拔管的效果有:可降低拔制力，增加道次变形量，改善产品表面质量，减少空拔管内残余应力;可降低对润滑剂的要求，提高工具寿命，减少断头和废品(提高成材率);可加工难变形材料以及降低能耗等。 研究者对振动效果的机理提出3种见解:(1)体积效应，指吸收超声波能量，改变组织状态，导致金属的变形杭力降低和塑性加工性能的改善。 (2)表面效应，指改变拉拔中金属与工具间摩擦状态，减少外摩擦阻抗，使接触面分离，表面发热，有利于润滑剂吸入和排出，有净化表面作用以及摩擦力换向等。 (3)旋锻效应，指金属上作用有一个高频的交变应力，可降低变形抗力。 (李连诗)
