Results 251 to 260 of about 338,499 (317)
Visualization of Swirling Flow in a 3-dimensional Helical Stent Model using Color-coded Circulation and 4-dimensional Flow Magnetic Resonance Imaging. [PDF]
Interv Radiol (Higashimatsuyama)Maruyama M +6 more
europepmc +1 more source
Stability of Rowing Technique and Specificity of Training Load: A Pilot Longitudinal Study in Young Athletes. [PDF]
Sports (Basel)Anpilogov IE +2 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Infinite phase velocity as the boundary between positive and negative phase velocities
Microwave and Optical Technology Letters, 2004AbstractThe concept of infinite‐phase velocity (IPV) is shown as the boundary between positive‐ and negative‐phase velocities (PPVs and NPVs). As materials displaying PPV and NPV are physically realizable, we conjecture that this applies IPV materials as well. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 41: 165–166, 2004; Published online
Akhlesh Lakhtakia, Tom G. Mackay
openaire +1 more source
Apparent phase velocities and fundamental-mode phase velocities of Rayleigh waves
Soil Dynamics and Earthquake Engineering, 2003Abstract Rayleigh wave dispersion data usually appear in the form of multimodal spectra for a layered model structure. The number of dispersion modal curves depends on the number of layers in the model. The measured dispersion velocities from the frequency–wavenumber (F–K) space, however, may not represent the true phase velocities of the fundamental-
Shen, XK +5 more
openaire +3 more sources
On Einsteinian velocity addition and the notion of phase velocity
Proceedings of the IEEE, 1977It is shown that conventional notions of the electromagnetic phase velocity in moving media are in general, inconsistent with the Einsteinian velocity addition. A new vector quantity, normalized phase slowness, is introduced and shown to be consistent with both the Lorentz transformation and the Einsteinian law of velocity addition.
Y. Rahmat-Samii, R.C. Menendez
openaire +1 more source
Measurements of phase velocity and group velocity in human calcaneus
Ultrasound in Medicine & Biology, 2000Ultrasonic velocity in calcaneus correlates highly with bone mineral density, which is a good predictor of osteoporotic fracture risk. Several commercial bone sonometers perform a velocity measurement based on the transit time of a broadband pulse to assess skeletal status.
openaire +2 more sources
Velocity Variability in MRI Phase-Contrast
2018 26th European Signal Processing Conference (EUSIPCO), 2018MRI phase contrast is a well known technique for computing the average velocity associated to each pixel. In this work, we calculate the exact probability distribution function for the velocity given the noise in the signal. This pdf is not necessarily Gaussian, particularly for low Signal-to-Noise ratio.
Ali Dehghan Firoozabadi +4 more
openaire +1 more source