Results 221 to 230 of about 4,746 (306)

Assessing radiofrequency safety of active implants by measuring induced radiofrequency currents using MRI

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose During MRI in the presence of active wire‐like implants, such as deep brain stimulation leads, there is a risk of thermal lesions in tissues adjacent to implant contacts due to radiofrequency currents induced in the wire. Currently, there is no established method to evaluate the radiofrequency (RF) safety of an implant in situ, due to ...
Chiara Hartmann, Mélina Bouldi, Jan M. Warnking   +2 more
wiley   +1 more source

A New Efficient and Provably Secure Certificateless Signature Scheme Without Bilinear Pairings for the Internet of Things. [PDF]

Sensors (Basel)
Wei Z, Liu X, Zhao H, Li Z, Liu B.
europepmc   +1 more source

Comparative Analysis of Authenticated Key Agreement Protocols Based on Elliptic Curve Cryptography

, 2016
S. U. Nimbhorkar, Latesh Malik
openalex   +1 more source

High‐resolution deuterium metabolic imaging of the human brain at 9.4 T using phase‐cycled balanced SSFP spectral–spatial acquisitions

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose The aim was to improve the sensitivity and robustness against B0 inhomogeneities of deuterium metabolic imaging (DMI) using phase‐cycled balanced SSFP (bSSFP) methods at 9.4 T. Methods We investigated two variants of phase‐cycled bSSFP acquisitions, namely uniformly weighted multi‐echo and acquisition‐weighted chemical shift imaging ...
Praveen Iyyappan Valsala, Rolf Pohmann, Rahel Heule, Georgiy A. Solomakha, Nikolai I. Avdievich, Jörn Engelmann, Laura Kuebler, André F. Martins, Klaus Scheffler   +8 more
wiley   +1 more source

ChebIoD: a Chebyshev polynomial-based lightweight authentication scheme for internet of drones environments. [PDF]

Sci Rep
Al-Mekhlafi ZG, Altmemi JMH, Al-Shareeda MA, Al-Hchaimi AAJ, Homod RZ, Mohammed BA, Alshammari G, Al-Dhlan KA, Alrashdi R, Alkhabra YA.   +9 more
europepmc   +1 more source

A survey on security of mobile handheld devices through elliptic curve cryptography

, 2016
V Ajithkumar, K. Satyanarayan Reddy
openalex   +1 more source

Coronary Artery Blood Flow Imaging Using 3D Flow MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose In this work, a 3D phase contrast (PC) technique is presented, which enables flow velocity measurements in three spatial directions, simultaneously covering the proximal left (LCA) and right (RCA) coronary arteries and yielding both morphological and flow information.
Denise Lichthardt, Michaela Schmidt, Jens Wetzl, Peter Speier, Manuel Hein, Christopher Schuppert, Armin M. Nagel, Daniel Giese   +7 more
wiley   +1 more source

ECACS: An Enhanced Certificateless Authentication Scheme for Smart Car Sharing. [PDF]

Sensors (Basel)
Shen Z, Kou X, Yang T.
europepmc   +1 more source

Elliptic-Curves Cryptography on High-Dimensional Surfaces

, 2016
Alberto Sonnino, Giorgio Sonnino
openalex   +2 more sources

Launch Uncertainty Analysis Under Barrel Erosion Using Experiments and Random Matrix Theory

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The effects of barrel erosion on artillery firing performance have long been a subject of concern, but its effect on launch uncertainty has yet to be investigated. This article explores the influence of barrel erosion on the interior ballistic mechanical properties and launch disturbances.
Chengyuan Guo, Guolai Yang, Liqun Wang, Jianli Ge, Qingle Wu, Hao Guo   +5 more
wiley   +1 more source