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1. Full Text Propagation of the Semidiurnal Internal Tide: Phase Velocity Versus Group Velocity
by Zhao, Zhongxiang
Geophysical Research Letters, ISSN 0094-8276, 12/2017, Volume 44, Issue 23, pp. 11,942 - 11,950
The superposition of two waves of slightly different wavelengths has long been used to illustrate the distinction between phase velocity and group velocity.... 
internal tide | group velocity | phase velocity | satellite altimetry | DISSIPATION | ENERGY | GEOSCIENCES, MULTIDISCIPLINARY | GLOBAL PATTERNS | DEEP-OCEAN | ALTIMETRY | ENERGETICS | MODEL | Travel time | Propagation velocity | Oceans | Spatial discrimination | Satellite observation | Spring | Tides | Density stratification | Tidal power | Velocity | Superposition (mathematics) | Phase velocity | Travel | Satellites | Group velocity | Maps | Satellite altimetry | Wavelengths | Diurnal variations | Internal tides | Tidal dynamics | Stratification | Tidal energy | Wave number
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2. Full Text Velocity reconstruction with nonconvex optimization for low‐velocity‐encoding phase‐contrast MRI
by Loecher, Michael and Ennis, Daniel B
Magnetic Resonance in Medicine, ISSN 0740-3194, 07/2018, Volume 80, Issue 1, pp. 42 - 52
Purpose To introduce and demonstrate a nonconvex optimization method for reconstructing velocity data from low‐velocity‐encoding (Venc) phase‐contrast MRI... 
reconstruction | nonconvex optimization | intravoxel dephasing | phase contrast | low Venc | low V | DYNAMIC-RANGE | low V-enc | SIGNAL-TO-NOISE | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | FLOW | Reproducibility of Results | Humans | Image Interpretation, Computer-Assisted - methods | Signal-To-Noise Ratio | Imaging, Three-Dimensional - methods | Aneurysm - physiopathology | Image Processing, Computer-Assisted - methods | Healthy Volunteers | Normal Distribution | Magnetic Resonance Imaging | Algorithms | Computer Simulation | Contrast Media - chemistry | Phantoms, Imaging | Magnetic resonance imaging | Reconstruction | Noise | Digital simulation | Velocity distribution | Velocity | Optimization | Velocity errors | Medicine | Aliasing | Coding | Resonance | Regularization
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3. Full Text Shared velocity encoding: A method to improve the temporal resolution of phase‐contrast velocity measurements
by Lin, Hung‐Yu and Bender, Jacob A and Ding, Yu and Chung, Yiu‐Cho and Hinton, Alice M and Pennell, Michael L and Whitehead, Kevin K and Raman, Subha V and Simonetti, Orlando P
Magnetic Resonance in Medicine, ISSN 0740-3194, 09/2012, Volume 68, Issue 3, pp. 703 - 710
Phase‐contrast magnetic resonance imaging (PC‐MRI) is used routinely to measure fluid and tissue velocity with a variety of clinical applications.... 
phase‐contrast MRI | flow quantification | shared velocity encoding | real‐time imaging | phase-contrast MRI | real-time imaging | MR-ANGIOGRAPHY | EXCITATION | QUANTIFICATION | QUANTITATION | ACQUISITION | TIME | PRECESSION | BLOOD-FLOW | EXERCISE | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | Reproducibility of Results | Coronary Circulation - physiology | Coronary Vessels - physiology | Humans | Image Interpretation, Computer-Assisted - methods | Middle Aged | Male | Myocardial Perfusion Imaging - methods | Young Adult | Magnetic Resonance Imaging, Cine - methods | Sensitivity and Specificity | Adult | Magnetic Resonance Angiography - methods | Image Enhancement - methods | Blood Flow Velocity - physiology | Coronary Vessels - anatomy & histology | Measurement | Computer-generated environments | Computer simulation | Methods | Biomedical engineering
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4. Full Text Generalized velocity approximation
by Stovas, Alexey and Fomel, Sergey
Geophysics, ISSN 0016-8033, 01/2019, Volume 84, Issue 1, pp. C27 - C40
We have developed a new approximation for P-wave velocity that has the same functional form for phase and group velocities. We call it the generalized velocity... 
Anisotropy | Velocity analysis | GEOCHEMISTRY & GEOPHYSICS | TRAVEL-TIME APPROXIMATIONS | ANELLIPTIC APPROXIMATIONS | QSV-WAVES | PHASE-VELOCITY | P-WAVES | MOVEOUT APPROXIMATIONS | TRANSVERSELY ISOTROPIC MEDIA | ORTHORHOMBIC MEDIA | ELASTIC-WAVES | QP VELOCITIES
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5. Full Text Controlling the Velocity of Light Pulses
by Robert W. Boyd and Daniel J. Gauthier
Science, ISSN 0036-8075, 11/2009, Volume 326, Issue 5956, pp. 1074 - 1077
It is now possible to exercise a high degree of control over the velocity at which light pulses pass through material media. This velocity, known as the group... 
Phase velocity | Group velocity | Pumps | Lasers | Light refraction | Waveforms | Resonance | Review | Laser beams | Developmental delay | Propagation delay | SPEED | FIBERS | AMPLIFICATION | SEMICONDUCTOR OPTICAL AMPLIFIERS | SBS SLOW LIGHT | DISPERSION | MULTIDISCIPLINARY SCIENCES | WAVELENGTH CONVERSION | ATOMIC GAS | DELAY | PROPAGATION | Speed | Light | Research | Materials science | Velocity | Physics
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6. Full Text Observation of promoted C–O bond weakening on the heterometallic nickel–silver: Photoelectron velocity-map imaging spectroscopy of AgNi(CO) n
by Liu, Zhiling and Xie, Hua and Zou, Jinghan and Fan, Hongjun and Tang, Zichao
The Journal of Chemical Physics, ISSN 0021-9606, 06/2017, Volume 146, Issue 24, p. 244316
We report a joint experimental and theoretical study on heterodinuclear silver–nickel carbonyl clusters: AgNi(CO) n − and AgNi(CO) n (n = 2, 3). The... 
CLUSTER ANIONS | TRANSITION-METAL CARBONYLS | VIBRATIONAL FREQUENCIES | SCALING FACTORS | CONSISTENT BASIS-SETS | DENSITY-FUNCTIONAL CALCULATIONS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | GAS-PHASE | CHEMISTRY, PHYSICAL | INFRARED PHOTODISSOCIATION SPECTROSCOPY | AB-INITIO PSEUDOPOTENTIALS | MATRIX-ISOLATION | Angular distribution | Nickel carbonyl | Cobalt | Spectrum analysis | Photodetachment | Carbonyls
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7. Full Text Bubble Formation and Bubble Rise Velocity in Gas−Liquid Systems:  A Review
by Kulkarni, Amol A and Joshi, Jyeshtharaj B
Industrial & Engineering Chemistry Research, ISSN 0888-5885, 08/2005, Volume 44, Issue 16, pp. 5873 - 5931
The formation of gas bubbles and their subsequent rise due to buoyancy are very important fundamental phenomena that contribute significantly to the... 
ENGINEERING, CHEMICAL | NON-NEWTONIAN LIQUIDS | FREE-STREAM VELOCITY | HOLD-UP PROFILES | VISCOUS-LIQUIDS | CONSTANT-FLOW CONDITIONS | SINGLE-BUBBLE | CROSS-FLOW | FINITE REYNOLDS-NUMBER | SUBMERGED ORIFICE | SPHERICAL BUBBLE
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8. Full Text Radial velocity confirmation of Kepler-91 b: Additional evidence of its planetary nature using the Calar Alto/CAFE instrument
by Lillo-Box, J and Barrado, D and Henning, Th and Mancini, L and Ciceri, S and Figueira, P and Santos, N.C and Aceituno, J and Sánchez, S
Astronomy and Astrophysics, ISSN 0004-6361, 2014, Volume 568, pp. L1 - 4
The object transiting the star Kepler-91 was recently assessed as being of planetary nature. The confirmation was achieved by analysing the light-curve... 
Techniques: radial velocities | Planets and satellites: individual: KIC 8219268 | Planets and satellites: gaseous planets | Planet-star interactions | Planets and satellites: individual: KOI-2133 | Planets and satellites: individual: Kepler-91 | planets and satellites: gaseous planets | planets and satellites: individual: KOI-2133 | techniques: radial velocities | planets and satellites: individual: Kepler-91 | ASTRONOMY & ASTROPHYSICS | SOLAR | VARIABLE-STARS | PHASE CURVE | planet-star interactions | CANDIDATES | planets and satellites: individual: KIC 8219268 | HOST STARS | Spectroscopy | Orbitals | Spectrographs | Brightness | Modulation | Planetary mass | Radial velocity | Estimates | Astronomy | Physics - Earth and Planetary Astrophysics
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9. Full Text Hα LINE PROFILE ASYMMETRIES and the CHROMOSPHERIC FLARE VELOCITY FIELD
by Kuridze, D and Mathioudakis, M and Simões, P.J.A and Voort, L. Rouppe Van Der and Carlsson, M and Jafarzadeh, S and Allred, J.C and Kowalski, A.F and Kennedy, M and Fletcher, L and Graham, D and Keenan, F.P
Astrophysical Journal, ISSN 0004-637X, 11/2015, Volume 813, Issue 2, p. 125
The asymmetries observed in the line profiles of solar flares can provide important diagnostics of the properties and dynamics of the flaring atmosphere. In... 
Sun: flares | Sun: chromospheres | radiative transfer | SOLAR-FLARES | MODELS | SPECTROSCOPY | ASTRONOMY & ASTROPHYSICS | IMPULSIVE PHASE | RED ASYMMETRY | EMISSION | Sun: chromosphere | DIAGNOSTICS | Atmospheres | Wavelengths | Asymmetry | Flares | Ground-based observation | Evolution | Diagnostic systems | Temporal logic | RADIANT HEAT TRANSFER | TELESCOPES | VELOCITY | SOLAR FLARES | RESOLUTION | OPACITY | SUN | KERNELS | HYDROGEN | ASYMMETRY | PLASMA | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | CHROMOSPHERE | CALCIUM
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10. Full Text Solidification velocity of undercooled Fe–Co alloys
by Rodriguez, Justin E and Kreischer, Carolina and Volkmann, Thomas and Matson, Douglas M
Acta Materialia, ISSN 1359-6454, 01/2017, Volume 122, pp. 431 - 437
The goal of this work was to investigate intra-alloy relationships, as they pertain to rapid solidification, which can be applied to computational materials... 
Computational materials modeling | Rapid solidification | Iron-cobalt alloys | Containerless processing | DENDRITIC GROWTH | STABILITY | MATERIALS SCIENCE, MULTIDISCIPLINARY | METALLURGY & METALLURGICAL ENGINEERING | MELTS | METASTABLE PHASE-FORMATION | LEVITATION | INTERFACE | KINETICS | SELECTION | Electromagnetism | Cobalt | Analysis | Alloys | Liquids | Parameters | Alloy systems | Ferrous alloys | Mushy zones | Mathematical models | Systems analysis | Dendritic structure
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11. Full Text What is Driving the H I Velocity Dispersion?
by Tamburro, D and Rix, H.-W and Leroy, A. K and Low, M.-M. Mac and Walter, F and Kennicutt, R. C and Brinks, E and de Blok, W. J. G
The Astronomical Journal, ISSN 1538-3881, 05/2009, Volume 137, Issue 5, pp. 4424 - 4435
We explore what dominant physical mechanism sets the kinetic energy contained in neutral, atomic (H I) gas. Both supernova (SN) explosions and... 
galaxies: dwarf | stars: formation | galaxies: kinematics and dynamics | galaxies: evolution | galaxies: spiral | galaxies: ISM | NEARBY GALAXIES | GRAVITATIONAL COLLAPSE | INTERSTELLAR-MEDIUM | RECENT STAR-FORMATION | ABSORPTION-LINE SURVEY | MAGNETOHYDRODYNAMIC TURBULENCE | NEUTRAL ATOMIC PHASES | ASTRONOMY & ASTROPHYSICS | SPIRAL GALAXY NGC-6946 | MAGNETIC-FIELD | MAGNETOROTATIONAL INSTABILITY
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12. Full Text Surface-wave array tomography in SE Tibet from ambient seismic noise and two-station analysis: I - Phase velocity maps
by Yao, H and Hilst, R.D. van der and Hoop, M.V. de
Geophysical Journal International, ISSN 0956-540X, 2006, Volume 166, Issue 2, pp. 732 - 744
Empirical Green’s functions (EGFs) between pairs of seismographs can be estimated from the time derivative of the long-time cross-correlation of ambient... 
array tomography | two-station method | empirical Green’s functions | surface waves | SE Tibet | phase velocity | two‐station method | empirical Green's functions | Phase velocity | Surface waves | Array tomography | Empirical Green's functions | Two-station method | CHINA | INVERSION | SENSITIVITY KERNELS | EMERGENCE | GEOCHEMISTRY & GEOPHYSICS | UPPER-MANTLE | CRUST | TRAVEL-TIMES | CODA | REGIONS | Tomography | Analysis
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13. Full Text New correlations for slip velocity and characteristic velocity in a rotary liquid–liquid extraction column
by Asadollahzadeh, Mehdi and Torkaman, Rezvan and Torab-Mostaedi, Meisam
Chemical Engineering Research and Design, ISSN 0263-8762, 11/2017, Volume 127, pp. 146 - 153
In this research work, the hydrodynamic behavior of a Kühni extraction column has been investigated for determination of slip velocity and characteristic... 
Slip velocity | Mass transfer conditions | Characteristic velocity | Kühni column | OLDSHUE-RUSHTON COLUMN | HYDRODYNAMICS | ROTATING-DISC COLUMN | Kuhni column | PREDICTION | ENGINEERING, CHEMICAL | FLOODING CHARACTERISTICS | DROP SIZE | PHASE HOLD-UP | MASS-TRANSFER
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