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(11174060)

国家自然科学基金(11174060): 作品数：16被引量：55H指数：6; 导出分析报告; 相关作者：他得安王威琪许凯亮张正罡刘成成更多>>; 相关机构：复旦大学更多>>; 相关期刊：《Chinese Journal of Acoustics》《仪器仪表学报》《Science China(Physics,Mechanics & Astronomy)》《声学技术》更多>>; 相关主题：超声导波长骨骨矿密度ULTRASONIC时域有限差分更多>>; 相关领域：医药卫生理学电子电信一般工业技术更多>>

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

超声导波定量评价长骨骨折状况被引量：3: 《中国科学：物理学、力学、天文学》2014年第7期682-690,共9页刘丹许凯亮李大为他得安王威琪; 国家自然科学基金(批准号:11174060;11327405;11304043);上海市科技支撑计划(编号:13441901900);教育部博士点基金(编号:20110071130004;20130071110020)资助项目; 采用超声导波评价长骨骨折已成为近年来的研究热点之一,为了定量地评价长骨骨折状况,本文采用二维时域有限差分仿真方法定量分析了超声导波在部分断裂和完全断裂的长骨中的传播情况.结果表明,采用低频窄带高斯包络正弦信号可成功激励出...; 关键词：长骨骨折超声导波时域有限差分幅度比值

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

Effect of selected signals of interest on ultrasonic backscattering measurement in cancellous bones被引量：12: 《Science China(Physics,Mechanics & Astronomy)》2013年第7期1310-1316,共7页LIU ChengCheng HAN HaiJie TA DeAn WANG WeiQi; supported by the National Natural Science Foundation of China(Grant No. 11174060);the Ph.D. Programs Foundation of the Ministry of Education of China(Grant Nos. 20090071110066,20110071130004);the Key Science and Technology Program of Shanghai(Grant No. 09441900400);the Program for New Century Excellent Talents in University(Grant No. NCET-10-0349); This study examined how the signals of interest （SOI） effect on the backscattering measurement numerically based on 3-D finite-difference time-domain （FDTD） method. High resolution microstructure mappings of bovin...; 关键词：ultrasonic backscattering cancellous bone FDTD simulation signals of interest backscattering parameters

Joint spectrogram segmentation and ridge-extraction method for separating multimodal guided waves in long bones被引量：10: 《Science China(Physics,Mechanics & Astronomy)》2013年第7期1317-1323,共7页ZHANG ZhengGang XU KaiLiang TA DeAn WANG WeiQi; supported by the National Natural Science Foundation of China(Grant No. 11174060);the PhD Programs Foundation of the Ministry of Education of China(Grant Nos. 20090071110066 and 20110071130004);the New Century Excellent Talents of the Ministry of Education of China(Grant No. NCET-10-0349); Ultrasonic guided waves (GWs) can be used to evaluate long bones effectively because of the ability to provide the information of the whole bone. In this study, a joint spectrogram segmentation and ridge-extraction (J...; 关键词：multimodal guided waves long bone SPECTROGRAM SEGMENTATION

超声背散射法评价松质骨状况的研究被引量：14: 《应用声学》2013年第3期199-204,共6页他得安王威琪; 国家自然科学基金(11174060);教育部博士点基金(20110071130004);教育部新世纪优秀人才项目(NCET-10-0349)资助项目; 超声背散射法评价松质骨状况及诊断骨质疏松症是近年来医学超声领域内的研究热点之一,现已取得了显著的进展。本文将介绍近年来超声背散射法及其参量评价松质骨状况的研究进展,并分析超声背散射相关参量频谱质心偏移量(SCS)和平均骨小...; 关键词：超声背散射法松质骨骨矿密度(BMD) 相关性评价

长骨中编码激励超声导波的方法研究被引量：1: 《声学技术》2013年第S1期143-144,共2页张慧琳他得安; 国家自然科学基金(11174060);教育部博士点基金(20110071130004);教育部新世纪优秀人才项目(NCET-10-0349); 0引言超声导波能够有效地评价长骨的密度、弹性及几何结构等特征,在骨质检测及骨折愈合等方面得到了广泛的应用[1]。但长骨对超声导波信号的衰减很大,且受到软组织的影响,使得接收到的信号幅度较小,信噪比低。编码激励最早用于雷达系统...; 关键词：超声导波信号幅度信噪比组织谐波成像超声诊断骨折愈合二进制码雷达系统逆滤波器单脉冲

高级检索 检索式检索

时间限定

期刊范围

学科限定全选

高级检索 检索式检索

时间限定

期刊范围

学科限定全选

国家自然科学基金(11174060)

检索结果分析

下载全文

高级检索检索式检索

时间限定

期刊范围

学科限定全选

高级检索 检索式检索

时间限定

期刊范围

学科限定全选

国家自然科学基金(11174060)

检索结果分析

下载全文

用户登录

高级检索检索式检索