Results 31 to 40 of about 1,830,967 (340)
Anomalous flows in a sunspot penumbra [PDF]
A&A 570, A92 (2014), 2014 High-resolution spectropolarimetric observations of active region NOAA 11271 were obtained with the spectro-polarimeter on board Hinode to analyze the properties of an anomalous flow in the photosphere in a sunspot penumbra. We detect a blue-shifted feature that appeared on the limb-side penumbra of a sunspot and that was present intermittently during ...
arxiv +1 more source
Spatial separation of large dynamical blue shift and harmonic generation [PDF]
, 2006 We study the temporal and spatial dynamics of the large amplitude and frequency modulation that can be induced in an intense, few cycle laser pulse as it propagates through a rapidly ionizing gas. Our calculations include both single atom and macroscopic
M. V. Ammosov +4 more
core +2 more sources
Eurasian Journal of Science and Engineering, 2022 Nanocrystalline lead sulfide (PbS) thin films have been successfully deposited onto glass substrate via microwave assisted chemical bath deposition.
Muhammed Husham
doaj
On strong correlation between shifted velocity and line width of broad blue-shifted [OIII] components in quasars [PDF]
arXiv, 2021 In this manuscript, we report strong linear correlation between shifted velocity and line width of the broad blue-shifted [OIII] components in SDSS quasars. Broad blue-shifted [OIII] components are commonly treated as indicators of outflows related to central engine, however, it is still an open question whether the outflows are related to central ...
arxiv
Doppler shift of hot coronal lines in a moss area of an active region [PDF]
, 2012 The moss is the area at the footpoint of the hot (3 to 5 MK) loops forming the core of the active region where emission is believed to result from the heat flux conducted down to the transition region from the hot loops. Studying the variation of Doppler
Dadashi, Neda +4 more
core +1 more source
A General Blue-Shift Phenomenon
, 2023 In chromatic homotopy theory, there is a well-known conjecture called blue-shift phenomenon (BSP). In this paper, we propose a general blue-shift phenomenon (GBSP) which unifies BSP and a new variant of BSP introduced by Balmer-Sanders under one framework.
openaire +2 more sources
Color Point Tuning for (Sr,Ca,Ba) Si2O2N2:Eu2+ for White Light LEDs [PDF]
, 2009 Color point tuning is an important challenge for improving white light LEDs. In this paper, the possibilities of color tuning with the efficient LED phosphor Sr1−x−y−zCaxBaySi2O2N2:Euz2+ (0 ≤ x, y ≤ 1; 0.005 ≤ z ≤ 0.16) are investigated.
Bachmann, Volker +4 more
core +1 more source
Optical properties of poly-vinyl pyrrolidone encapsulated PbS/CdS coreshell quantum dots [PDF]
Carbon: Science and Technology, 2019 PbS/CdS core-shell quantum dots have been synthesized through chemical route. PbS shows polycrystalline cubic structure and CdS shows hexagonal structure.
K. C. Handique +3 more
doaj
Spectrally Stable Blue Light-Emitting Diodes Based on All-Inorganic Halide Perovskite Films
Nanomaterials, 2022 Substantial progress has been made in perovskite light-emitting diodes (PeLEDs), but the fabrication of high-performance blue PeLEDs still remains a challenge due to its low efficiency, spectral instability and short operational lifetime.
Huidan Zhang +8 more
doaj +1 more source
EIS/Hinode observations of Doppler flow seen through the 40 arcsec wide slit [PDF]
, 2008 The Extreme ultraviolet Imaging Spectrometer (EIS) on board Hinode is the first solar telescope to obtain wide slit spectral images that can be used for detecting Doppler flows in transition region and coronal lines on the Sun and to relate them to their
A.R. Winebarger +22 more
core +2 more sources