Results 71 to 80 of about 7,225,697 (246)
Nature Communications, 2017 The state-of-the-art three-dimensional biomedical imaging often requires specific tissue preparation that may alter the physical properties of the specimen causing loss of information. Here Wong et al.
Terence T. W. Wong +10 more
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Ultrasonic imaging of aortic atheroma [PDF]
Heart, 1998 The study of embolism in the cerebral and peripheral circulation requires imaging methods that reveal pathology in some part of the heart or circulation upstream of the occluded vessel. Technological advances over the past 10–15 years, and in particular the development of transoesophageal, epiaortic, and intravascular ultrasound has made it possible to
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Design of high frequency ultrasonic array transducers for medical imaging
, 2011 Ultrasonic transducers have been widely used in the medical applications. High frequency array transducers have recently attracted many research interests, since it provides not only the electronic beamforming but also the very fine image resolution. The
Qian, Yichen
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Sensors, 2019 High-precision ultrasound imaging of void defects is critical for the performance and safety assessment of ballastless track structures. The sound propagation velocity of each layer in the ballastless track structure is quite different.
Wen-Fa Zhu +6 more
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Ultrasonic Reflection for Measurement of Oil Film Thickness and Contact between Dissimilar Materials [PDF]
, 2012 The contact between dissimilar materials occurs in many machine elements where one of the contacting parts is manufactured from low modulus materials such as lip seals, o-rings, and metal on polymer prosthetic hip joints.
Gasni, Dedison
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Automated interpretation of fetal cardiac function evaluation from the echocardiogram
npj Digital MedicinePrenatal assessment of fetal cardiac function is crucial for predicting neonatal outcomes, yet manual echocardiographic measurements are labor-intensive and subjective.
Caixin Huang +10 more
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Journal of Aeronautical MaterialsTraditional ultrasonic automated non-destructive testing is a great challenge in the inspection of aviation components with complex surfaces. Complex surfaces can interfere with the formation of the focus in the sound beam，and the waveform transformation
CHEN Yao +5 more
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Ultrasonic imaging: safety considerations [PDF]
Interface Focus, 2011 Abstract Modern ultrasound imaging for diagnostic purposes has a wide range of applications. It is used in obstetrics to monitor the progress of pregnancy, in oncology to visualize tumours and their response to treatment, and, in cardiology, contrast-enhanced studies are used to investigate heart function and physiology. An increasing
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Ultrasonic imaging of electrofusion welded polythene pipes employed in utilities industry
, 2012 Electrofusion welding (EFW) is a widely used technique for joining polyethylene pipes in the oil, gas and water industry. Like many welding and joining methods, the joints created by EFW can exhibit a range of flaw types that can be attributed to process
Gachagan, Anthony +2 more
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Low-Coherence Interferometric Imaging: Solution of the One-Dimensional Inverse Scattering Problem [PDF]
, 2004 Optical coherence tomography (OCT) is a non-invasive imaging technique based on the use of light sources exhibiting a low degree of coherence. Low coherence interferometric microscopes have been successful in producing internal images of thin pieces of ...
Chaubell, Mario Julián
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