Results 101 to 110 of about 10,408 (217)
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To evaluate a third‐order motion‐compensated spin echo (M3‐MCSE) sequence at multiple cardiac phases on a clinical 3 T MRI scanner with ultra‐high performance (UHP) gradients (200 mT/m), compared with stimulated echo acquisition mode (STEAM) and second‐order MCSE (M2‐MCSE) for cardiac diffusion tensor imaging (cDTI).
Ke Wen +8 more
wiley +1 more source
Microwave Driven Magnetic Plasma Accelerator Studies (CYCLOPS) [PDF]
A microwave-driven cyclotron resonance plasma acceleration device was investigated using argon, krypton, xenon, and mercury as propellants. Limited ranges of propellant flow rate, input power, and magnetic field strength were used. Over-all efficiencies (
Crimi, G. F. +2 more
core +1 more source
GABA+‐Edited Magnetic Resonance Spectroscopy Deep Learning Quality Assessment Framework
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Motivated by the need to improve GABA+‐edited magnetic resonance spectroscopy (MRS) quality, we developed a three‐module framework to improve transient averaging based on quality. We hypothesized that training a deep learning (DL) model to differentiate spectrum quality could improve transient averaging compared to traditional ...
Hanna Bugler +2 more
wiley +1 more source
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT This work addresses the challenge of bidirectional trajectory tracking in solar‐powered wheeled mobile robots (WMRs), considering the mechanical structure, actuator‐driver, and power stage subsystems. Notably, this is the first study to explicitly model and control the actuator‐driver subsystem within this context. The proposed solution relies
Benjamin Natanael Santiago‐Nogales +8 more
wiley +1 more source
NDE: An effective approach to improved reliability and safety. A technology survey [PDF]
Technical abstracts are presented for about 100 significant documents relating to nondestructive testing of aircraft structures or related structural testing and the reliability of the more commonly used evaluation methods.
Carpenter, J. L., Jr., Stuhrke, W. F.
core +1 more source
PULSE EDDY CURRENT NONDESTRUCTIVE TESTING
Topics in Chemical & Material Engineering, 2018 Cai Jiabao, Wang Haibo
openaire +1 more source
Finite Element Modeling of Pulsed Eddy Current Phenomena
, 1984 Conventional eddy current methods, using single-frequency excitation employ instruments which monitor the phasor value of the impedance, or impedance plane trajectory. Changes in the test specimen or test conditions result in a change in the value of the impedance.
Allen, Bruce, Lord, W.
openaire +3 more sources
People and Nature, EarlyView.Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard +4 more
wiley +1 more source
steel research international, EarlyView.Uncertainties exist in computational fluid dynamics (CFD) modeling of complex metallurgical processes, even when partly validated by laboratory experiments. rCFD enables computationally efficient prediction of long‐term RH degassing and can be adapted to vary flow conditions.
Xiaomeng Zhang +3 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT Large‐capacity generator circuit breaker (GCB) based on vacuum interrupter technology is the key power equipment to ensure the safe operation of the power system. When the short‐circuit current was forced to cross zero, the large‐capacity GCB was difficult to generate a zero‐voltage environment through freewheeling, the vacuum interrupter (VI)
Xiangyu Han +8 more
wiley +1 more source