超声

Wtp53 has obvious antiblastic effect towards Y79 cells, and the apoptosis rate of Y79 cells was the highest after transfection mediated by ultrasound-microbubble.

结论wtp53基因对RB瘤细胞具有较明显的抑制生长的作用；质粒+微泡+超声辐照，质粒+脂质体转染，以及质粒+超声辐照，均可促进Y79细胞的凋亡，但超声微泡介导的转染引起的凋亡率高于脂质体转染，而二者的凋亡率又明显高于质粒+超声转染。

An ultrasonic medical instrument having a handpiece and medical ultrasonic blade assembly including a vibration antinode, a handpiece, and a medical ultrasonic blade.

该超声医疗器械包括手持件和医疗超声刀组件，所述手持件和医疗超声刀组件包括振动腹点、手持件和医疗超声刀。

The results that the ultrasonic intensity have a direct ratio to the currents at electrode, when using this methods in the reduction of 〓 at Pt microelectrode, shown the manner of ultrasonic effect on the mass transfer on the electrode surface. And the inverse ratio relationship of current amplitudes to the separation of horn-electrode shown the decay law of ultrasonic intensity with distance.

将这一方法应用于铂电极上铁氰化钾还原反应体系中的研究结果表明，超声功率与电极反应电流幅值信号呈正比的关系，反映了超声能量对电极表面传质过程的影响程度的对应关系；电流信号幅值与超声作用距离的反比例关系则反映了超声振动能量随其辐射距离增大而衰减的规律性。

Objective:Three-dimensional ultradorographic surface imaging technology was used to reconstruct gemmule embryo outward contour image,and to compare with two dimensional ultrasonographic section image.As far the two different imaging methods,we tried to assess and explored the application value in ultrasonographic diagnosis,especially the clinical value of ultrasonographic embryology.

目的：应用三维超声表面成像技术重建胎芽胎儿表面外观图像，并与以往二维超声断层图像进行对比，就两种不同成像方法尝试进行超声诊断价值特别是超声胎儿胚胎学临床价值评价与探讨。

Objective To evaluate the curative effect of high intensity focused ultrasound in liver cancer therapy and the applied value of ultrasound in the evaluation.

目的评价高强度聚焦超声治疗肝癌的疗效及超声在疗效评价中的应用价值。方法HIFU治疗肝癌患者78例，通过术中实时超声监控及治疗前后彩色多普勒超声对比评价治疗效果。

Furthermore, the highefficiency, high precision ultrasonic vibration honing equipment of horizontal type CSW-1 and vertical type CSL-1 adapting to the machining cylinder sleeve parts with material of engineering ceramics and the ultrasonic honing oilstone dressing fixture are developed.

针对这些问题作者研制了超声珩磨装备，分析了现有超声系统的缺陷并提出了超声珩磨系统的局部共振设计思想，通过材料的高效去除机理等问题的研究，发现了超声珩磨的特有工效。

The influence of the main process variables, including the time of osmotic dehydration, the time of ultrasound field treat and the intensity of ultrasound field on water loss, solid gain, weight reduction and relative conductivity of sarcocarp cell membrane were investigated.

对超声场强化龙眼果肉渗透脱水进行研究，探讨渗透脱水时间、超声处理时间、超声场强对物料脱水率、失重率、固形物得率、细胞膜透性等的影响；建立超声场强化龙眼渗透脱水的经验动力学方程。

Methods:to analyze electrocardiogram,echocardiogram,left ventriculography,nuclear magnetic resonance results of 13 cases with ahcm.results:12 cases had apical wall thickening in echocardiogram, 3 cases had a "spade-like" configuration on left ventriculogram, 7cases were misdiagnosed as coronary heart disease initially.conclusion:ahcm is easy to be misdiagnosed as coronary heart disease, echocardiogram plays important role in the diagnosis of ahcm, in patients with suspicion of ahcm and inadequate echo images, the use of contrast echocardiography or mri should be considered.

对13例ahcm的心电图、超声心动图、左室造影及磁共振结果进行分析。结果：13例ahcm中心电图有特征性改变12例，超声心动图提示心尖区增厚12例，左室造影提示舒张期呈"黑桃"形改变3例，初诊误诊为冠心病7例。结论：ahcm易被误诊为冠心病，超声心动图是诊断该病的重要手段，必要时可做心脏超声造影术或磁共振检查。

UV and SMPE-GC-MS results confirmed that radical-oxidation and hightemperature pyrogenation controlled the sonochemical-oxidation of toluene, and mainmiddle-products included benzaldehyde, bibenzyl, dibutyl phthalate, et al., final products werecarbon dioxide and water. The reactive violet K-3R was chosen as a model compound to study the effect ofsonoelectrochemical degradation of nonvolatile pollutant.

以超声与电化学作用处理活性紫K-3R水样，二者协同效应明显，5V槽电压时60min K-3R脱色效率要比纯电场作用时高57.8％，纯超声场对活性紫基本无显著的降解作用，初始浓度、pH对超声电化学协同降解影响较大，实验建立了活性紫降解的动力学模型，经超声电化学处理后，K-3R共轭发色体系已基本被破坏，但溶液中仍有苯环等产物。

Materials Methods: Beast ultrasound was performedduring luteal phase and late follicular phase in 50 women, aged 25～45, with normalmenstrual cycle and no distinct breast disease; Serum estradiol and progesteronelevel were measured by enzyme immunoassay on the day of ultrasound performed. Onehundred of twenty nine menopause transition women and 318 menopause women wereselected. All of them had ultrasound of breast and serum estradiol report. Breast pain wererecorded. Sixty menopausal women aged 56.8 yr. and menopausal aged 8.2 yr. participated1-year double-blind, randomized, placebo-controlled and 2mg 17β-estradiol continuouscombined with 1mg norethindrone acetate clinical study. Mastalgia was diaried. Breaststructure changes tested by high-resolution ultrasound at the 0 and 12 M.

资料和方法：征集身体健康，没有明显乳腺疾病的正常月经妇女53名，分别在月经的晚卵泡期和黄体期进行超声检查和测血清雌二醇和孕酮水平；收集有HRT前乳腺超声检查和血清雌二醇水平结果的绝经过渡期妇女129名和绝经后妇女318名，记录既往乳腺胀疼、过渡期乳腺胀疼、绝经后乳腺胀疼和既往乳腺病史。17 β-雌二醇2mg加醋酸炔诺酮1mg连续联合治疗和安慰剂随机双盲平行对照临床研究1年的60名参加者，分别在用药前后各进行一次乳腺超声检查，乳腺症状按同一表格由病人日记及经培训的一名医生定期随诊记录乳腺胀疼出现、消失的日期及持续的天数；超声检查用同一方法测量乳腺腺体层厚度、导管宽度、乳腺腺体结构及血流。

I think he's learned how to approach hitters....

Johhny Damon说，『他已是最好的了，再没有人能够比他做的更好，我想他的球技已经完全成熟了，而且他也已经学会了如何去对付和压迫各种打击者。。。。。。

In effect, an 18 foot King Cobra could actually look down onto the average human being.

际上，一个18尺眼镜蛇王其实可以俯视到的平均人。