Results 241 to 250 of about 3,974,952 (312)
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Ultrasonic Diagnostic Instruments
Science, 1980The underlying physical principles and current limitations of diagnostic ultrasonic instruments are reviewed. Recently developed ultrasonic imaging devices using pulsed-reflected ultrasound are discussed in detail. These instruments transmit short trains of 1.5- to 10-megahertz sound.
Albert Macovski +2 more
exaly +3 more sources
Novel instrument for inspecting rock bolt integrity using ultrasonic guided waves
, 2021Design of an advanced instrument for inspecting rock bolt integrity by means of ultrasonic guided waves is presented. Issues related to features of multimodal and dispersive ultrasonic guided waves used by the instrument are addressed.
T. Stepinski
semanticscholar +1 more source
Ultrasonic Instrumentation for Hematology
Ultrasonic Imaging, 1979In this paper recent progress on our effort to utilize ultrasound for diagnosing blood disorders is reported. Since the processes of erythrocyte aggregation and hemolysis will alter the acoustic scattering property of the blood, which is a function of the volume concentration as well as the dimension of the cells, ultrasonic backscattering ...
K K, Shung, J M, Reid
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Curettage by ultrasonic instrument. Preliminary report.
Oral Surgery, Oral Medicine, Oral Pathology, 1960Henry M. Goldman
semanticscholar +2 more sources
Ultrasonics, 2023
Bone cutting is a common and important procedure in surgery. As a type of orthopedic instrument, ultrasonic orthopedic scalpels (UOSs) have been widely used due to their safety and convenience. Therefore, it is very important to have a deep understanding
Shi-Bo Zhang +4 more
semanticscholar +1 more source
Bone cutting is a common and important procedure in surgery. As a type of orthopedic instrument, ultrasonic orthopedic scalpels (UOSs) have been widely used due to their safety and convenience. Therefore, it is very important to have a deep understanding
Shi-Bo Zhang +4 more
semanticscholar +1 more source
A Novel Ultrasonic Thermotherapy Instrument
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007An structure is proposed for fabricating a portable prototype apparatus, using the embedded control technique based on ARM core, which has a simple structure and small size. The hardware is easily updated and maintained due to its modular structure, the software has a visualized interface and hierarchical design mode, so the apparatus has a good ...
Zi, Zhang, Ting-lei, Huang
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Ultrasonic measuring instrument
The Journal of the Acoustical Society of America, 1983By detecting the instant of a selected zero-crossing of a received ultrasonic signal rather than relying on the instant the amplitude of that received signal exceeds a predetermined reference amplitude in excess of zero, a transit-time measuring instrument can be realized which is free from the measurement errors normally arising from acoustic signal ...
Masaru Kohno +3 more
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Development and Application of Ultrasonic Surgical Instruments
IEEE Transactions on Biomedical Engineering, 1997In this paper, a new approach for designing ultrasonic surgical instruments (USI) is presented. These medical instruments convert an ultrasonic signal into a mechanical vibration by utilizing a magnetostrictive method and have been found to be very useful for various medical procedures.
Sun Dong, Z Y Zhou, W Z Shen
exaly +3 more sources
Journal of Endodontics, 2020
INTRODUCTION Nonsurgical endodontic retreatment continues to be a challenge in endodontics, particularly when dealing with a complex tooth anatomy. This study evaluated the efficacy of passive ultrasonic irrigation (PUI) and the GentleWave system as ...
B. Crozeta +5 more
semanticscholar +1 more source
INTRODUCTION Nonsurgical endodontic retreatment continues to be a challenge in endodontics, particularly when dealing with a complex tooth anatomy. This study evaluated the efficacy of passive ultrasonic irrigation (PUI) and the GentleWave system as ...
B. Crozeta +5 more
semanticscholar +1 more source
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
openaire +2 more sources