【摘 要】
:
Background, Motivation and Objective Open scanners have rapidly advanced in the past few years to offer a variety of solutions to ultrasound researchers. Each system presents specific performance in t
【机 构】
:
Dipartimento di Ingegneria dell'Informazione, Università degli studi di Firenze, Firenze, Italy
论文部分内容阅读
Background, Motivation and Objective Open scanners have rapidly advanced in the past few years to offer a variety of solutions to ultrasound researchers. Each system presents specific performance in terms of flexibility, number of channels, processing power and raw data storage capability. This paper describes a 256-channel ULtrasound Advanced Open Platform (ULA-OP 256), designed to provide high performance in a small (portable) size.
其他文献
Background, Motivation and Objective Simple equivalent circuits for CMUTs are not adequate especially when the devices are part of a large imaging array with crosstalk. Although accurate large signal
Background, Motivation and Objective The number of transmit and receive channels needed to perform real-time 3-D ultrasound imaging can be greatly reduced if row-column addressed 2-D transducer arrays
Background, Motivation and Objective For high performance piezoelectrics, few technology options are currently available. Recent study projected a novel sound pressure sensor using a ferroelectrics-ga
Background, Motivation and Objective Previously, we have devised a new high-frame-rate flow imaging paradigm called color encoded speckle imaging (CESI) that offers, at sub-ms time resolution, duplex
Background, Motivation and Objective Ultrasonic flaw detection in NDE applications is a challenging problem due to suppression of flaw echoes within the high scattering noise (clutter) echoes.Advanced
目的 探讨高铁作业者血清HSP70水平与异常心电图之间的关联.方法 收集职业性体检的高铁作业者176例,并设正常对照组.ELISA法检测血清HSP70含量.Logistic回归筛选异常心电图的危险因素.结果 高温组的血清HSP70水平(0.157±0.133)ng/ml比正常对照组(0.097±0.134)ng/ml高,差异有统计学意义(t=4.26,P<0.01),高温组异常心电图检出率26.1
进入21世纪以来,随着我国经济社会的飞速发展,我国城乡居民的工作节奏和生活方式都发生了很大变化,心脑血管疾病发生率呈现井喷趋势,并成为威胁我国人民健康的主要慢性疾病,心脑血管病导致的死亡已成为我国人群死亡的主要原因,而且其发病率和死亡率呈逐渐上升趋势,成为威胁人们健康的严重问题[1].无论是在亚洲还是欧美国家,心脑血管疾病也是排在首位的死亡因素.因此零级预防心脑血管疾病,成为当今医务工作者首要关注
目的 探讨社区空巢老人主观幸福感与社会支持、应对方式的关系。方法 以225名社区空巢老人为研究对象,采用纽芬兰纪念大学幸福度量表、领悟社会支持量表和特质应对方式问卷进行调查。结果 领悟社会支持总分及其各维度与主观幸福感呈正相关,积极应对与主观幸福感呈正相关,消极应对与主观幸福感呈负相关。积极应对和家庭内支持是主观幸福感的正向预测因子。结论 社会支持和应对方式是社区空巢老人主观幸福感重要的影响因素。
Background, Motivation and Objective In August 2014 the ESA spacecraft Rosetta encountered the comet 67P/Churyumov-Gerasimenko. Rosetta carried the lander Philae that landed on the comets nucleus onNo
Background, Motivation and Objective This paper presents an implementation of a real-time duplex synthetic aperture imaging system on a commercially available hand-held device. The implementation incl