云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(11327405)

国家自然科学基金(11327405): 作品数：10被引量：18H指数：3; 导出分析报告; 相关作者：他得安宋亮华白亮宋小军更多>>; 相关机构：复旦大学上海电力学院更多>>; 相关期刊：《声学学报》《Chinese Journal of Acoustics》《物理学报》《Engineering》更多>>; 相关主题：ULTRASONIC超声导波BONEBACKSCATTERINGSPACING更多>>; 相关领域：理学医药卫生一般工业技术电子电信更多>>

Diagnosis of osteoporosis based on multi-scale wavelet parameters of ultrasonic guided waves: 《Chinese Journal of Acoustics》2017年第4期429-438,共10页SONG Xiaojun TA De'an MOILANEN Petro; supported by NSFC(11404207,11327405,11525416);Natural Science Foundation of Shanghai(14ZR1417500);Shanghai Colleges and Universities Young Teachers Training Funding Scheme(ZZsd115110,ZZsd115106); Evaluating bone regularly is important to prevent and control the disease of osteoporosis. Impact of osteoporosis on ultrasonic guided waves propagating in human long bones is studied in this paper. Multi-scale wavele...; 关键词：OSTEOPOROSIS WAVELET GUIDED ultrasonic bones dramatically regularly PROPAGATING TRANSDUCER CORTICAL

Estimating mean trabecular bone spacing based on the combination of Hilbert transform and fundamental frequency estimation: 《Science Foundation in China》2017年第3期57-71,共15页李颖徐峰刘成成许凯亮他得安王威琪; supported by the NSFC(11327405,11504057&11525416); Ultrasonic backscatter signals from cancellous bone are sensitive to the microstructure of trabecular bone,and thus enable the feasibility to extract microstructural information of trabecular bone.The mean trabecular ...; 关键词：Ultrasonic backscatter Mean trabecular bone spacing estimation Hilbert transform and fundamental frequency estimation Cancellous bone microstructure

采用超声导波特征参量的骨质疏松识别方法被引量：2: 《声学学报》2017年第5期571-576,共6页宋小军他得安 Petro Moilanen; 国家自然科学基金项目(11404207,11327405,11525416);上海市自然科学基金项目(14ZR1417500);上海高校青年教师培养计划(A-0029-15-138)资助; 骨质的定期检测对骨质疏松的防治至关重要。本文研究了骨质疏松对超声导波在人体长骨中传播的影响。提出采用多尺度小波变换方法对接收到的导波信号进行处理,通过分析在不同传播距离下高阶小波细节分量所占信号总能量的变化,来判断是否...; 关键词：骨质疏松症超声导波识别方法特征参量小波变换方法小波多尺度传播距离技术诊断

The spectrum entropy estimation method for ultrasonic backscattering signal in cancellous bones被引量：2: 《Chinese Journal of Acoustics》2017年第3期337-346,共10页XU Feng XU Yiwen LIU Chengcheng TA De'an GUO Jianzhong; supported by the National Natural Science Foundation of China(11327405,11525416,11604054,11504057); In the application of cancellous bone ultrasound diagnosis based on backscattering method, it is of great importance to estimate fast and accurately whether the valid backscattering signal exists in the received signa...; 关键词：BONE The spectrum entropy estimation method for ultrasonic backscattering signal in cancellous bones

长骨中振动声激发超声导波的方法被引量：4: 《物理学报》2017年第15期169-176,共8页刘珍黎宋亮华白亮许凯亮他得安; 国家自然科学基金(批准号:11327405;11525416;11304043)资助的课题~~; 为了实现一定频段内任意低频下在长骨中激励导波信号,本文提出一种采用聚焦高频(5 MHz)超声换能器在长骨皮质骨中激发低频(150 kHz)超声导波的振动声方法.首先介绍了板状超声导波理论和双声束共聚焦法与单声束调幅法激发振动声的基本原...; 关键词：长骨皮质骨超声导波有限元仿真振动声激发

Impact of the fracture on low-order guided waves in long bone被引量：1: 《Chinese Journal of Acoustics》2015年第2期166-176,共11页LIU Dan XU Kailiang TA De'an; supported by the National Natural Science Foundation of China(11174060,11327405,11304043);the Science and Technology Support Program of Shanghai(13441901900);the Ph.D.Programs Foundation of the Ministry of Education of China(20130071110020);China Postdoctoral Science Foundation(2012M520826); Using ultrasonic guided waves to assess long bone fractures and fracture healing has become a promising diagnostic issue. But the multimode overlap of the guided waves challenges the quantitative evaluation and clinic...; 关键词：Impact of the fracture on low-order guided waves in long bone AO MODE

Trabecular spacing estimation based on quadratic transformation algorithm: 《Chinese Journal of Acoustics》2015年第2期177-185,共9页XU Yiwen HOU Li SHU Xiao WU Guangli LIU Chengcheng XU Kailiang TA De'an; supported by NSFC(11174060,11304043,11327405);the Ph.D.Programs Foundation of the Ministry of Education of China(20130071110020);the Key Science and Technology Program of Shanghai(13441901900); The quadratic transformation method is proposed to estimate the trabecular spac- ing （Tb.Sp）, an important index for osteoporosis diagnosis. The performance of this algorithm was investigated by scatter model, two-d...; 关键词：FDTD SIFT Trabecular spacing estimation based on quadratic transformation algorithm

An Ultrasonic Backscatter Instrument for Cancellous Bone Evaluation in Neonates被引量：4: 《Engineering》2015年第3期336-343,共8页Chengcheng Liu Rong Zhang Ying Li Feng Xu Dean Ta Weiqi Wang; supported by the National Natural Science Foundation of China (11174060, 11327405, and 11504057);the Science and Technology Support Program of Shanghai (13441901900);the PhD Programs Foundation of the Ministry of Education of China (20130071110020);the China Postdoctoral Science Foundation (2015M571490); Ultrasonic backscatter technique has shown promise as a noninvasive cancellous bone assessment tool. A novel ultrasonic backscatter bone diagnostic （UBBD） instrument and an in vivo application for neonatal bone eval...; 关键词：ultrasonic backscatter cancellous bone evaluation signal of interest （SOI） backscatter instrument neonatal bone status

Detection of long bones based on Barker code excited ultrasonic guided waves被引量：5: 《Chinese Journal of Acoustics》2014年第2期136-146,共11页ZHANG Huilin SONG Xiaojun TA De'an; supported by the NSFC(11174060,11327405);the Science and Technology Support Program of Shanghai(13441901900);the Ph.D.Programs Foundation of the Ministry of Education of China(20110071130004,20130071110020); Single pulse excited ultrasonic guided wave surfers high attenuation during the propagation in long bones.This results in small amplitude and low signal-to-noise ratio（SNR）of measured signals.Thus,the Barker code ex...; 关键词：CODE Detection of long bones based on Barker code excited ultrasonic guided waves FIR

Effect of trabecular bone material properties on ultrasonic backscattering signals被引量：2: 《Chinese Journal of Acoustics》2014年第1期73-82,共10页LIU Chengcheng TA De'an WANG Weiqi; supported by the National Natural Science Foundation of China(11174060,11327405);the Ph.D.Programs Foundation of the Ministry of Education of China(20110071130004,20130071110020);the Science and Technology Support Program of Shanghai(13441901900);the Program for New Century Excellent Talents in University(NCET-10-0349); In this study, ultrasonic backscattering signals in cancellous bones were obtained by finite difference time domain （FDTD） simulations, and the effect of trabecular material properties on these signals was analyzed....; 关键词：bone Effect of trabecular bone material properties on ultrasonic backscattering signals BSC IBC FDTD

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