Results 11 to 20 of about 475,511 (316)
Lumbar vertebral T2-relaxation time investigated with T2-mapping at multiple time points in a day demonstrate large individual variations [PDF]
PURPOSEThe increasing interest of endplate and Modic changes as potential pain generators in low back pain (LBP), along with advancement of functional quantitative magnetic resonance imaging (MRI) techniques, makes it important to characterize the ...
Hanna Hebelka +7 more
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Calculation of Relaxation Spectra from Stress Relaxation Measurements [PDF]
Application of stress on materials increases the energy of the system. After removal of stress, macromolecules comprising the material shift towards equilibrium to minimize the total energy of the system.
Kontogiorgos, Vassilis +1 more
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The size-dependent properties of magnetic nanoparticles (MNP) are the major characteristics, determining MNP application in modern technologies and bio-medical techniques.
Alexey O. Ivanov, Vladimir S. Zverev
doaj +1 more source
Benefits of Waveform Relaxation Method and Output Space Mapping for the Optimization of Multirate Systems [PDF]
We present an optimization problem that requires to model a multirate system, composed of subsystems with different time constants. We use waveform relaxation method in order to simulate such a system.
CLENET, Stephane +3 more
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The mode-coupling theory of glass transition predicts the relaxation time divergence of glass-forming materials at the crossover temperature, which is approximately 1.2 times the calorimetric glass transition temperature. However, this divergence has not
Risa, Fukase +5 more
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Dielectric investigations of hydrogen bonded complexes of Enanthamide and Valeramide with 4-bromophenol, 4-chlorophenol, 4-iodophenol and 4-fluorophenol in benzene were done at 303K, using a J-band (7.22GHz) microwave bench and dielectric relaxation ...
A Aathif Basha +3 more
doaj +1 more source
ObjectivesTo quantitatively measure the T1 value, T2 value, proton density (PD) value, and cerebral blood flow (CBF) in young and middle-aged primary insomnia (PI) patients, and analyze the correlations between relaxation times, PD, and CBF to explore ...
Xiao-Wen Luo +6 more
doaj +1 more source
Structural relaxation in silicate melts and non-Newtonian melt rheology in geologic processes [PDF]
The timescale of structural relaxation in a silicate melt defines the transition from liquid (relaxed) to glassy (unrelaxed) behavior. Structural relaxation in silicate melts can be described by a relaxation time, , consistent with the observation that ...
Dingwell, Donald B., Webb, Sharon L.
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Optimum Pump Pulse Duration for X-Ray Ar-Plasma Lasing
In plasma-driven X-ray lasers, it is critical to optimize the duration and time delay between pump pulses. In this study, we have done parametric simulations in order to systematically investigate the optimum time configuration of pump pulses.
Leili Masoudnia, Davide Bleiner
doaj +1 more source
A modelling approach based on the Substitutive Coefficients Network (SCN) is developed to predict the thermal behavior of a system in the dynamic state-space, without requiring knowledge of the thermal mass.
Lahoucine Ouhsaine +3 more
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