Results 271 to 280 of about 105,270 (315)
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Ultrasonic detection in robotic environments
Proceedings of IEEE International Conference on Robotics and Automation, 2002Based on information produced by a 200 kHz ultrasonic echo device developed for robotics and other industrial purposes, a method for object identification was developed and is presented in this paper. Interpretation of the echos from the reflecting objects, complexity analysis and information extraction were made by system identification methods such ...
Luis Sobral +3 more
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Ultrasonic detection of subdural collections
Pediatric Radiology, 1984Subdural collections in infants are common complications of meningitis, trauma and post surgical procedures. Careful ultrasonic examination via the anterior fontanelle is a reliable method of demonstrating these collections. It has an accuracy comparable to computed tomography and is our first line of investigation.
B J, Cremin +3 more
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Ultrasonic location detection with waveguide
2014 22nd Signal Processing and Communications Applications Conference (SIU), 2014Time delay estimation has been used as a research area of significant practical important in many fields such as especially military system like localization, targeting, course acquisition also sonar, seismology, hands-free communications etc. In these applications, it is important to detect the delay and arrival times of ultrasonic echoes comprised in
Tugba Ozge Onur, Rifat Hacioglu
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On ultrasonic detection of surface features
Proceedings. 1986 IEEE International Conference on Robotics and Automation, 1986Ultrasonic range finding is an inexpensive means of obtaining 3-dimensional information about the surrounding environment. Because of this ultrasonic detection methods have received considerable attention recently, particularly in the robotic community.
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The ultrasonic detection of platelet aggregates
Thrombosis Research, 1987The echogenicity of platelet aggregates in platelet-rich plasma and whole blood was evaluated in stirring and flowing in vitro models. Real-time two dimensional ultrasonic images were obtained with transducers operating at 3.0, 5.0, 10 and 12 mHz. Platelet-rich plasma was not echogenic.
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An Ultrasonic Instrument for Osteoporosis Detecting
2014With the aging population increasing, the Osteoporosis (OP) in aging people is rising, and it has an important significance to take the prevention and treatment of osteoporosis as a way to improve the health quality of the elderly. The research presents an osteoporosis calcaneus bone test device, which designs two ultrasonic probes for test the bone ...
Hongfu Zhou +5 more
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The Journal of the Acoustical Society of America, 1981
An ultrasonic detection system having an array of ultrasonic transducers that are uniformly closely disposed relative to each other such that the active surfaces for transmission or reception are maintained on a straight or curved line. The transducers form radiation or reception beams in a specific direction.
Kiyomi Minohara +5 more
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An ultrasonic detection system having an array of ultrasonic transducers that are uniformly closely disposed relative to each other such that the active surfaces for transmission or reception are maintained on a straight or curved line. The transducers form radiation or reception beams in a specific direction.
Kiyomi Minohara +5 more
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Antepartum Ultrasonic Detection of Multicystic Kidney
Radiology, 1979A multicystic fetal kidney was detected antepartum with gray-scale ultrasound. This appears to be the first proved case.
J E, Friedberg, J S, Mitnick, D A, Davis
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Pitfalls in ultrasonic detection of pleural fluid
Journal of Clinical Ultrasound, 1978AbstractThis is a report of proven massive infiltration of Hodgkin's disease of the lung with correlative sonographic, roentgenographic, and pathologic findings. Special emphasis is placed on the difficulties in distinguishing pleural fluid from massive tumor infiltration of the lung by Hodgkin's disease.
M S, Shin, P W, Gray
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An Ultrasonic Method for Detecting Air Embolism
Journal of Neurosurgery, 1969R EMBOLISM is a well-recognized hazard of neurosurgical operations performed in the sitting position. Even with the most assiduous use of prophylactic measures such as frequent irrigation of the surgical field with physiological saline and the liberal application of bone wax and wet cottonoids, serious air embolism still occurs.
J C, Maroon +2 more
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