Results 71 to 80 of about 228,090 (281)

3D Structures on Relativistic Jets

, 1999
The properties of wave-like helically twisted normal mode structures on steady relativistic jets are summarized. Wave speeds are a function of the wavelength and less than the jet speed.
Biretta, Biretta, Birkinshaw, Gill, Hardee, Hardee, Hardee, Hardee, Junor, Keppens, Owen, Payne, Philip E. Hardee, Reid, Rosen, Xu, Zensus   +16 more
core   +1 more source

SWAS and Arecibo observations of H2O and OH in a diffuse cloud along the line-of-sight to W51 [PDF]

, 2002
Observations of W51 with the Submillimeter Wave Astronomy Satellite (SWAS) have yielded the first detection of water vapor in a diffuse molecular cloud.
David A. Neufeld, David J. Hollenbach, Elitzur M., Joulain K., Michael J. Kaufman, Paul F. Goldsmith, Rene Plume, Williams T. L.   +7 more
core   +4 more sources

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

Advanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto, Sergey Dayneko, Antoine Pavesic Junior, Nicholas Sandor, Alexander Hart, Yuki Haruta, Magdalena Bazalova‐Carter, Marcos J. L. Santos, Makhsud I. Saidaminov   +8 more
wiley   +1 more source

Mid-latitude Geomagnetic Field Analysis Using BOH Magnetometer: Preliminary Results [PDF]

Journal of Astronomy and Space Sciences, 2011
Korea Astronomy and Space Science Institute researchers have installed and operated magnetometers at Mt. Bohyun Observatory to measure the Earth's magnetic field variations in South Korea.
Junga Hwang, Kyucheol Choi, Jaejin Lee, Young-Deuk Park, Dong-Hun Ha   +4 more
doaj   +1 more source

Class Transitions and Two Component Accretion Flow in GRS 1915+105

, 2005
The light curve of the galactic micro-quasar GRS 1915+105 changes in at least thirteen different ways which are called classes. We present examples of the transitions from one class to another as observed by the IXAE instrument aboard the Indian ...
A. K. Chatterjee, A. K. Choudhury, A. Nandi, Chakrabarti, Chakrabarti, Chakrabarti, Greiner, Greiner, Molteni, Naik, Naik, Naik, Nandi, Nandi, Paul, Remillard, S. K. Chakrabarti, Smith, Smith, U. Chatterjee   +19 more
core   +2 more sources

Formation of 2D Electron Gas at a Non‐Polar Perovskite Oxide Interface: SrHfO3/BaSnO3

Advanced Functional Materials, EarlyView.
Through experiments and Poisson‐Schrödinger simulations, 2D electron gas formed at the non‐polar SrHfO3/BaSnO3 interface is observed. A large conduction band offset enables modulation doping by the intrinsic deep donors in SrHfO3, resulting in carrier confinement in BaSnO3 without relying on interfacial polarization or termination‐layer engineering ...
Jongkyoung Ko, Oliver Bierwagen, Wonwoo Suh, Jeewon B. Choi, Celesta S. Chang, Kookrin Char   +5 more
wiley   +1 more source

Meteor Radar for Investigation of the MLT Region: A Review

Atmosphere
This is an introductory review of modern meteor radar and its application to the measurement of the dynamical parameters of the Mesosphere Lower Thermosphere (MLT) Region within the altitude range of around 70 to 110 km, which is where most meteors are ...
Iain M. Reid
doaj   +1 more source

Open solar flux estimates from near-Earth measurements of the interplanetary magnetic field: comparison of the first two perihelion passes of the Ulysses spacecraft [PDF]

Annales Geophysicae, 2004
Results from all phases of the orbits of the Ulysses spacecraft have shown that the magnitude of the radial component of the heliospheric field is approximately independent of heliographic latitude. This result allows the use of near-Earth observations
M. Lockwood, M. Lockwood, M. Lockwood, R. B. Forsyth, A. Balogh, D. J. McComas   +5 more
doaj   +1 more source

Detector and Telescope Development for ProtoEXIST and Fine Beam Measurements of Spectral Response of CZT Detectors [PDF]

, 2005
We outline our plan to develop ProtoEXIST, a balloon-borne prototype experiment for the Energetic X-ray Imaging Survey Telescope (EXIST) for the Black Hole Finder Probe. EXIST will consist of multiple wide-field hard X-ray coded-aperture telescopes.
Cook, W. R., Copete, A., Craig, W. W., Gehrels, N., Grindlay, J. E., Harrison, F., Hong, J., Vadawale, S. V.   +7 more
core   +2 more sources

Chemo‐Mechanical Coupling in Hydrogels: Dynamics in the Diffusion‐Limited Regime

Advanced Functional Materials, EarlyView.
A time‐dependent continuum model is developed to capture the transient swelling dynamics of chemo‐mechanical hydrogels. By coupling chemical reactions, solvent transport, and polymer deformation, volume phase transitions, reaction kinetics, and transient mechanical instabilities are analyzed.
Yao Xiong, Aaveg Aggarwal, Monica Olvera de la Cruz   +2 more
wiley   +1 more source