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- The influences of ultrasonic power on heavy aluminum wire wedge bonding strength were investigated. 超声功率是影响粗铝丝引线键合强度的最主要因素之一。
- After ultrasonic the thixotropy of starch pastes drops with the increase in ultrasonic power. 超声处理的淀粉糊其触变性随超声功率的增大而减小。
- Objective: To study perioperative nursing methods in the treatment of kidney stone by PCNL combined with pneumatic and ultrasonic power. 目的:探讨经皮肾镜气压弹道联合超声碎石术患者围术期的护理方法。
- After the ultrasonic power and transducer work in coordination, the model machine is produced.And the experimental results are discussed. 在超声波电源与换能器匹配无误、工作稳定后,制成样机,进行调试、测试实验结果,对设计进行实验验证并给出实验波形。
- Finds of the ultrasonic power, reaction time, ratio of wax to ethanol, catalyst dosage and reaction temperature on the transesterification reaction were studied. 研究了超声波功率、反应时间、蜡醇比、反应温度以及催化剂用量对二十八烷醇提取效果的影响。
- Secondly, in response of the specific requirements of the ultrasonic power to the ultrasonic welding, the main circuit and power converter circuit basic structure is proposed. 其次,针对超声波焊接对超声波电源的具体要求,提出了电源主电路方案和功率变换器主电路基本结构。
- The results showed that the yield of adipic acid could achieve to 46% when the ultrasonic power was 50W and polyethyleneglycol was used as ultrasonic phase transfer catalyzer. 实验结果表明,用聚乙二醇作相转移催化剂,在功率为50W的超声波作用下,30%25浓度的硝酸氧化环己醇,己二酸的产率可达到46%25。
- Then a stair-wave inverter and resonant sine wave inverter as a high-frequency ultrasonic power, and the theoretical analysis, design, simulation and experiment is provide. 然后提出了阶梯波高频逆变器和谐振正弦波高频逆变器作为超声波电源,并进行了理论分析、设计、仿真及实验。
- The results show that waxy maize starch pastes with different ultrasonic power are all pseudoplastic and are all of the rheological property coincident with the Power Law. 结果表明,不同超声功率处理的蜡质玉来淀粉糊均为假塑性流体;
- The prototupe was fitted with the ultrasonic power supply which can be used specially for ultrasonic peening equipment of the kind of piezoelectric ceramics. 该装置配有自行研制成功的适用于压电超声冲击处理设备的专用超声波电源。首次将压电式陶瓷换能器引入超声冲击装置;
- Eckart stable gyration of one ball and two balls rotating in opposite directions was realized in an ultrasonic fountain. It is found that the gyration of the balls accelerates as the ultrasonic power increases. Eckart的声流理论,实现了超声喷泉中一个球体的旋转和两个球体按相反方向的旋转,同时观察到这些球体的旋转随超声功率的增大而加速。
- Taking advantage of the PIC microchip, the latter, ultrasonic control system can control ultrasonic power and input the cure time from 0 to 99 second each time and display it real-timely. 超声控制系统利用PIC系列单片机实现对超声波发生的控制即对治疗时间的控制,同时能将治疗时间实时显示。 每次治疗时间范围为:0~99s。
- With different ultrasonic power(200 W-800 W),ozone concentration(0.02 mg/L-0.14 mg/L)and treatment time(35 s-210 s),it is indicated the effect of sterilization by ultrasonic-ozone is better than that of untrasonic or ozone only. 超声功率从200W-800W;臭氧浓度从0.;02mg/L-0
- Single factor experiment was adopted to investigate the influences of ultrasonic power,concn.of lentinan and system temperature on the changes of solution intrinsic viscosity during degradation. [方法]用脉冲超声降解香菇多糖,通过单因素实验考察超声功率、多糖浓度及体系温度对降解过程中溶液特性粘度变化的影响,并研究降解前后香菇多糖的体外抗氧化活性的变化。
- The effect of power ultrasound on solidification process of Pb-Sn alloy was investigated, and the mechanism about different ultrasonic power, temperature and cooling conditions of melt was analyzed. 摘要研究了功率超声在铅锡合金凝固过程的作用,分析了超声功率、施振温度、熔体的冷却方式等参数的影响机制。
- The king was shorn of his power by his nobles. 国王被手下的贵族们剥夺了权力。
- Methods: One hundred and twenty eight patients with kidney stone and ureteral calculi were given treatment with PCNL combined with pneumatic and ultrasonic power under B-type ultrasound guide. 方法:对128例肾结石及输尿管结石患者采用B超引导穿刺建立通道,肾镜下行气压弹道联合超声碎石术,并给予精心护理。
- The doctors gave him an ultrasonic brain scan. 医生给他做了脑部超声波扫描检查。
- Open tender for purchasing power transformer. 公开招标购买电力运输设备。
- James unleashed his power on Susan in revenge. 杰姆斯利用权力报复苏珊。