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), and f is the ultrasonic frequency of the nebulizer (2.5 Hz). By considering that the nitrate salts have no influence on σ and ρ, the diameter of the droplet calculated using Eqn.(6) is 2.1 μm... Preparation of doping titania antibacterial powder by ultrasonic spray pyrolysis WEI Shun-wen(韦顺文)1, PENG Bing(彭 兵)1, CHAI Li-yuan(柴立元)1, LIU Yun-chao(刘云超)1, LI Zhu-ying(李竹英)2 1. School......
A Cold Adhesion for Self-fused Alloy Coat by High Frequency Induction ZHANG Zeng-zhi1,AI Bo1 (1.Research Institute of Ecological and Functional Material, China University of Mining and Technology... frequency induction generated by 100kw power with a frequency of 250kHz. The technological parameters of the method were determined through analysis of the thermal magnetism, thermal resistivity and anti......
J. Cent. South Univ. Technol. (2010) 17: 1293-1299 DOI: 10.1007/s11771-010-0634-x Cancellation for frequency offset in OFDM system based on TF-LMS algorithm GUAN Qing-yang(关庆阳), ZHAO Hong-lin(赵洪林...: In an orthogonal frequency division multiplexing (OFDM) system, a time and frequency domain least mean square algorithm (TF-LMS) was proposed to cancel the frequency offset (FO). TF-LMS algorithm is composed......
as follows: firstly, the current and voltage signals of the PZT were acquired by a data acquisition(DAQ) system, the ultrasonic frequency was 60 kHz, and the data acquisition frequency was set as 1.2... Effect of ultrasonic power on wedge bonding strength and interface microstructure WANG Fu-liang(王福亮), LI Jun-hui(李军辉), HAN Lei(韩 雷), ZHONG Jue(钟 掘) School of Mechanical and Electrical......
200092, China) Abstract: The process and kinetics of microcystin-RR (MC-RR) degradation by ultrasonic irradiation were studied. The effects of initial concentration of MC-RR, ultrasonic frequency... of different frequency on degradation of MC-RR by ultrasonic irradiation 表2 不同频率超声降解MC-RR的准一级动力学模型的拟合参数 Table 2 Fitting parameters of kinetics models (pseudo first-order)on degradation of MC......
Driving characteristics of octagon-type ultrasonic motorKIM Jong-Wook, PARK Choong-Hyo, LIM Jung-Hoon, JEONG Seong-Su, PARK Jong-Kyu, PARK Tae-Gone(1. Changwon National University, Sarim-dong, Changwon-si, Gyeongsangnam-do, 641-773, Korea)Abstract:Structure of the octagon-type ultrasonic motor was proposed and designed so as to allow the motor to drive small actuator. The stator of the motor......
Effects of ultrasonic vibration on plastic deformation of AZ31 during the tensile processTong Wen,Li Wei,Xia Chen,and Chun-lei Pei College of Material Science and Engineering,Chongqing University,Chongqing 400044,China摘 要:An investigation on the plastic behavior of AZ31 magnesium alloy under ultrasonic vibration(with a frequency of 15 kHz and a maximum......
density; ultrasonic frequency; flocs characteristics 污泥回流强化低浊水混凝过程中普遍存在有毒有害物质积累问题[1],需对回流污泥进行无害化处理,这是实现污泥回流工艺及污泥资源化的前提.超声技术是近年发展起来的一种新型水处理技术,可以有效去除水中污染物尤其是难降解的污染物.超声波在介质中传播时产生空化效应,空化气泡破裂产生的高温高压会引发一系列物理... frequency than the lower one. The specific surface area of pre-sonciated flcos gradually increases as sonication is prolonged, and it increases greater at higher frequency. The flocs size is greatly......
on the theory analysis and ultrasonic numerical simulation. The feasibility and frequency, as well as how to layout the survy lines, of the detection of metallic tendon ducts were studied..., frequency, phase and other aspects. Using multi-channel ultrasonic waves to detect the grouting quality of metallic tendon ducts is effective, and better results can be obtained.Key words:bridge; pre......
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