Results 111 to 120 of about 316,881 (368)

Photometric Redshifts and Stellar Masses for Galaxies from the DESI Legacy Imaging Surveys

Astrophysical Journal Supplement Series, 2019
We present a catalog of photometric redshifts and stellar masses for galaxies from imaging surveys serving the Dark Energy Spectroscopic Instrument project. The imaging footprints cover an area of over 14,000 deg2.
H. Zou, Jinghua Gao, Xu Zhou, X. Kong
semanticscholar   +1 more source

Interactions of Nitrogen‐Vacancy Centers in Diamond with Electron Beams: Implications for Quantum Sensing and Photoluminescence Stability

Advanced Optical Materials, EarlyView.
Under the influence of an electron beam, the photoluminescence (PL) and quantum sensing stability of nitrogen‐vacancy (NV) centers in fluorescent nanodiamonds (FNDs) change. This work elucidates structural and functional changes induced by the electron beam in FNDs and identifies imaging conditions to preserve NV properties and offers a pathway for top‐
Bradley T. Flinn, William J. Cull, Ian Cardillo‐Zallo, James Kerfoot, Benjamin L. Weare, Graham A. Rance, Michael W. Fay, Francisco U. Hernandez, Anabel E. Lanterna, Melissa. L. Mather, Andrei N. Khlobystov   +10 more
wiley   +1 more source

ANÁLISE DE AMOSTRAS DE COMBUSTÍVEIS POR FOTOMETRIA, NIR PORTÁTIL E RMN DE 1H - UMA COMPARAÇÃO COM OS RESULTADOS ENCONTRADOS POR TÉCNICAS NORMATIZADAS

Química Nova
It has been recurring adulterations in fuels (such as gasoline, ethanol and diesel), being necessary the exploration of the use of more modern analytical techniques capable of controlling the quality of these fuels, since some regulated tests may be ...
Flavia Tosato, Eliane V. Barros, Danyelle A. Cunha, Francine D. Santos, Thayná Corrêa, Amanda Nunes, Izabella Jastrow, Mylena A. Silverol, Layla U. Pinheiro, Alessandro C. Seabra, Paulo R. Filgueiras, Álvaro C. Neto, Leandro Wang, Ernesto C. Ferreira, Wanderson Romão   +14 more
doaj   +1 more source

Stellar Photometry at the Crossroads of the Two Centuries

Open Astronomy, 2003
In the last century photometry was recognized as a powerful method for investigation of physical parameters of stars and of interstellar matter. Photometric investigations now cover the spectral range from the far ultraviolet to the far infrared.
Straižys V.
doaj   +1 more source

Beaming Binaries - a New Observational Category of Photometric Binary Stars

, 2007
The new photometric space-borne survey missions CoRoT and Kepler will be able to detect minute flux variations in binary stars due to relativistic beaming caused by the line-of-sight motion of their components.
Duquennoy A., Pasquini L., Shay Zucker, Tal Alexander, Tsevi Mazeh   +4 more
core   +1 more source

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source

Interstellar Extinction in the Gaia Photometric Systems

Open Astronomy, 2003
Three medium-band photometric systems proposed for the Gaia space mission are intercompared in determining color excesses for stars of spectral classes from O to M at V = 18 mag.
Bridžius A., Vansevičius V.
doaj   +1 more source

Photometric redshifts for the SDSS Data Release 12 [PDF]

, 2016
We present the methodology and data behind the photometric redshift database of the Sloan Digital Sky Survey Data Release 12 (SDSS DR12). We adopt a hybrid technique, empirically estimating the redshift via local regression on a spectroscopic training ...
R. Beck, L. Dobos, T. Budav'ari, A. Szalay, I. Csabai   +4 more
semanticscholar   +1 more source

TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications

Advanced Robotics Research, EarlyView.
TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince, Sheeraz Athar, Pokuang Zhou, Yu She   +3 more
wiley   +1 more source

Dual-Star Photometer at the Tallinn Observatory

Open Astronomy, 2003
We briefly describe the dual-star photometer designed by P. Kalv, a former director of Tallinn Observatory (1934-2002) for multicolor photometry of close binaries and intrinsic variable stars.
Kalv P., Harvig V., Aas T., Pustylnik I.
doaj   +1 more source