Results 261 to 270 of about 8,846,713 (318)
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Low-profile lenses for ultrasound surgery
Physics in Medicine and Biology, 1999Several flat lens designs have been simulated that focus a planar transducer at various depths and angular deflections. The use of flat lenses with planar phased arrays to create multiple focus patterns has also been explored. The simulations have shown that the discrete element size is practical to machine.
T, Fjield, C E, Silcox, K, Hynynen
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The Journal of the Acoustical Society of America, 2009
One embodiment of a low-profile transducer includes a at least one fin perpendicularly mounted on a planar diaphragm, with a voice coil mounted onto the fin. The voice coil may reside in a strong uniform magnetic field. The locations at which the diaphragm is connected to a frame may be coplanar with a center of mass of the diaphragm.
An Duc Nguyen, Charles M. Sprinkle
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One embodiment of a low-profile transducer includes a at least one fin perpendicularly mounted on a planar diaphragm, with a voice coil mounted onto the fin. The voice coil may reside in a strong uniform magnetic field. The locations at which the diaphragm is connected to a frame may be coplanar with a center of mass of the diaphragm.
An Duc Nguyen, Charles M. Sprinkle
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Low profile collinear monopole antenna
2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN), 2016The paper presents an idea on the development of collinear type of antenna. We intend to provide an original two antenna architecture. The ground plane is taken as dimension 100×100×1.5 mm3 whereas the metal plate has dimension 16.7×1.5×110.5 mm3. The main goal of the article is a comparison of directivity and bandwidth of the proposed antennas. In our
Rahil Sinha +3 more
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A Low-Profile Wideband Tripolarized Antenna
IEEE Transactions on Antennas and Propagation, 2019As a combination of three orthogonal dipoles, the tri-polarized antenna has been demonstrated to significantly improve signal quality in scattering environment. In this work we propose a low-profile tri-polarized antenna with wideband characteristics.
Nghia Nguyen-Trong +4 more
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2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2014
A lens loaded ferrite backed sinuous antenna is demonstrated where the metallic cavity side wall is eliminated to increase its operational bandwidth. The sinuous aperture forms the fundamental radiator and is loaded with an electrically small lens in order to redirect the power towards the upper hemisphere.
Rohit Sammeta, Dejan S. Filipovic
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A lens loaded ferrite backed sinuous antenna is demonstrated where the metallic cavity side wall is eliminated to increase its operational bandwidth. The sinuous aperture forms the fundamental radiator and is loaded with an electrically small lens in order to redirect the power towards the upper hemisphere.
Rohit Sammeta, Dejan S. Filipovic
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2019 Design of Medical Devices Conference, 2019
Tracheobronchomalacia (TBM) is a condition where the trachealis muscle is too weak to withstand the pressure difference between the outer and inner walls of the trachea. This causes the airway to narrow or collapse. Patients with TBM may have symptoms including coughing, wheezing, and/or difficulty in breathing.
Cara Piazza +3 more
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Tracheobronchomalacia (TBM) is a condition where the trachealis muscle is too weak to withstand the pressure difference between the outer and inner walls of the trachea. This causes the airway to narrow or collapse. Patients with TBM may have symptoms including coughing, wheezing, and/or difficulty in breathing.
Cara Piazza +3 more
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Low-Profile Dynamic Wrist Splint
Journal of Hand Therapy, 1995A low-profile dynamic wrist splint has been designed for use by patients who have undergone simultaneous de Quervain's release and basal joint arthroplasty. The splint allows gentle postoperative gliding of the abductor pollicis longus (APL) and extensor pollicis brevis (EPB) tendons while stabilizing the basal joint arthroplasty.
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Low-Profile and Wideband Antenna
IEEE Antennas and Wireless Propagation Letters, 2011A novel wideband and low-profile planar dipole antenna is proposed. Matching structures that can make the antenna operating band wider and parasitic structures that can make the antenna of low profile are introduced. For verification, the proposed antenna prototype with a height of 30 mm (0.1 wave- length at the lowest frequency) was fabricated and ...
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Keeping a Low Profile: Insulinoma
The American Journal of Medicine, 2019Ramzi, Dudum, Vivek K, Murthy
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