机构

• 长春光学精密机械与物... [1]
• 合肥物质科学研究院 [1]
• 广州能源研究所 [1]
• 长春应用化学研究所 [1]
• 工程热物理研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [4]
• 会议论文 [1]

发表日期

• 2017 [1]
• 2016 [1]
• 2014 [1]
• 2005 [1]
• 2000 [1]

学科主题

• 材料科学 [1]
• 电子、通信与自动控制... [1]

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 汽车排气消声器几何结构参数对其声学性能的影响 期刊论文  OAI收割 华东交通大学学报, 2017, 卷号: 34, 期号: 6, 页码: 116-123 作者:  曾建邦;  廖连生;  王志万;  赵朝誉;  刘方震   |  收藏  |  浏览/下载：36/0  |  提交时间：2018/12/21 排气消声器  声学性能  几何结构  传递损失  exhaust muffler  acoustic performance  geometric structure  transmission loss   Effects of Acoustic Barriers and Crosswind on the Operating Performance of Evaporative Cooling Tower Groups 期刊论文  OAI收割 2016 作者:  Dang, C., Jia, L. and Yang, L. X. 收藏  |  浏览/下载：27/0  |  提交时间：2017/05/27 evaporative cooling tower groups acoustic barriers crosswind reflux flow operating performance air-cooled condensers mass-transfer counter-flow   Improvement of sound absorption characteristics under low frequency for micro-perforated panel absorbers using super-aligned carbon nanotube arrays 期刊论文  OAI收割 Applied Acoustics, 2014, 期号: 82, 页码: 23-27 作者:  Y.J. Qian;  D.Y. Kong;  Y. Liu;  S.M. Liu;  Z.B. Li 收藏  |  浏览/下载：31/0  |  提交时间：2016/03/13 Super-aligned Carbon Nanotube (Sacnt)  Arrays  Micro-perforated Panel (Mpp)  Acoustic Performance   AE signal processing and DSP implementation based on wavelet packet analysis (EI CONFERENCE) 会议论文  OAI收割 ICMIT 2005: Information Systems and Signal Processing, September 20, 2005 - September 23, 2005, Changchun, China 作者:  Zhao J.;  Wang K. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 To improve the accuracy of AE (Acoustic Emission) testing  the wavelet packet analysis was introduced to process the AE signals. Extraction of the fault characteristic information would be influenced greatly if the faulted AE signal was not effectively denoised. Based on discussing the fast searching algorithm of BWPB (Best Wavelet Packet Basis) adopting Shannon entropy  a new method based on BWPB was presented to denoise the AE signal from the faulted composite plate. Analyzing was performed on the denoised signal and the fault characteristic information was exacted. To improve the real-time performance of the wavelet packet analysis algorithm  it was performed on the DSP (Digital Signal Processing) chip TMS320VC5409. The experimental results show that the algorithm can not only reduce the noise by 10dB but also effectively extract the faulted characteristics information from the AE signal.   Amperometric quantification of polar organic solvents based on a tyrosinase biosensor 期刊论文  OAI收割 analytical chemistry, 2000, 卷号: 72, 期号: 15, 页码: 3455-3460 Zhang JZ; Wang BQ; Xu B; Cheng GJ; Dong SJ 收藏  |  浏览/下载：146/0  |  提交时间：2010/11/04 ACOUSTIC-WAVE MICROSENSORS  PHASE ENZYME ELECTRODES  POLY(VINYL ALCOHOL)  HYDROGEN-PEROXIDE  NONAQUEOUS MEDIA  GLUCOSE-OXIDASE  SENSOR ARRAYS  REDOX GEL  THIN-FILM  PERFORMANCE