Results 41 to 50 of about 179,881 (276)

An Optimized Colorimetric Readout Method for Lateral Flow Immunoassays

Sensors, 2018
Despite its broad penetration of various markets, the quantitative lateral flow immunoassay (LFIA) suffers from sensitivity issues in some cases. To solve this problem, an optimized colorimetric readout method for LFIA quantification is proposed in this ...
Jongwon Park
doaj   +1 more source

The ability of intermediate-band Stromgren photometry to correctly identify dwarf, subgiant, and giant stars and provide stellar metallicities and surface gravities

, 2010
[Abridged] Several large scale photometric and spectroscopic surveys are being undertaken to provide a more detailed picture of the Milky Way. Given the necessity of generalisation in the determination of, e.g., stellar parameters when tens and hundred ...
A. S. Árnadóttir, Abazajian, Adén, Adén, Alonso, Alonso, Anthony-Twarog, Anthony-Twarog, Arce, Arellano Ferro, Beers, Bell, Bensby, Bond, Bond, Bonfils, Bonifacio, Calamida, Calamida, Carney, Carollo, Chen, Clausen, Clem, Cohen, Cousins, Crawford, Crawford, Edvardsson, Faria, Favata, Feltzing, Ferguson, Flynn, Gilmore, Grebel, Grundahl, Grønbech, Gustafsson, Gustafsson, Haywood, Heiter, Helmi, Hilker, Holmberg, I. Lundström, Ibata, Ivezic, Johnson, Jønch-Sørensen, Kirby, Kotoneva, Landolt, Lee, Lester, Luck, Malyuto, Martell, Martell, Mermilliod, Mishenina, Nissen, Nordström, Ochsenbein, Olsen, Olsen, Olsen, Olsen, Olsen, Olsen, Perry, Perryman, Ramírez, Ramírez, Ramírez, S. Feltzing, Santos, Santos, Santos, Schlegel, Schuster, Schuster, Schuster, Schuster, Schuster, Schuster, Sousa, Strigari, Strömgren, Strömgren, Thorén, Twarog, Twarog, Valenti, van Leeuwen, Vandenberg, VandenBerg, von Hippel, von Hippel, Woolf, Yasuda, Yong, York, Önehag   +103 more
core   +1 more source

THE RESEARCH OF VARIATION OF THE PERIOD AND PRECESSION OF THE ROTATION AXIS OF EGS (AJISAI) SATELLITE BY USING PHOTOMETRIC MEASUREMENT

Odessa Astronomical Publications, 2014
The light curves of EGS Ajisai with temporal resolution of 20 ms referred to the time scale UTC (GPS) with an error of at most 0.1 ms were obtained. The observed flashes are produced when the mirrors which cover the spinning satellite’s surface reflect ...
N. Burlak, N. Koshkin, E. Korobeynikova, S. Melikyants, L. Shakun, S. Strakhova   +5 more
doaj   +1 more source

NORAD TLE Type Orbit Determination of LEO Satellites Using GPS Navigation Solutions [PDF]

Journal of Astronomy and Space Sciences, 2002
NORAD Two Line Elements (TLE) are widely used for the increasing number of small satellite mission operations and analysis. However, due to the irregular periodicity of generation of the NORAD TLE, a new TLE that is independent of NORAD is required.
Chang-Hwa Cho, Byoung-Sun Lee, Jeong-Sook Lee, Jae-Hoon Kim, Kyu-Hong Choi   +4 more
doaj   +1 more source

Better age estimations using UV-optical colours: breaking the age-metallicity degeneracy [PDF]

, 2006
We demonstrate that the combination of GALEX UV photometry in the FUV (~1530 angstroms) and NUV (~2310 angstroms) passbands with optical photometry in the standard U,B,V,R,I filters can efficiently break the age-metallicity degeneracy.
Kaviraj, S., Lee, Y. -W., Rey, S. -C., Rich, R. M., Yi, S. K., Yoon, S. -J.   +5 more
core   +3 more sources

Current and Future Applications of Reverberation-Mapped Quasars in Cosmology

Frontiers in Astronomy and Space Sciences, 2019
Reverberation mapping technique (RM) is an important milestone that has elevated our understanding of Active Galactic Nuclei (AGN) demographics, giving information about the kinematics and the structure of the Broad Line Region (BLR).
Swayamtrupta Panda, Swayamtrupta Panda, Mary Loli Martínez-Aldama, Michal Zajaček   +3 more
doaj   +1 more source

Unlocking the secrets of stellar haloes using combined star counts and surface photometry

, 2012
The stellar haloes of galaxies can currently be studied either through observations of resolved halo stars or through surface photometry. Curiously, the two methods appear to give conflicting results, as a number of surface photometry measurements have ...
Alcock, Barker, Barton, Bergvall, Bergvall, Bergvall, Bernstein, Bullock, Burgdorf, Cairós, Calchi Novati, Carollo, Chabrier, de Jong, de Jong, Durrell, E. Zackrisson, G. Micheva, Gould, Gouliermis, Gunawardhana, Helmi, Hidalgo, Hoversten, Ibata, Ingrosso, Irwin, Irwin, Jablonka, James, Kaneda, Komatsu, Kroupa, Lee, Lequeux, Lequeux, Lequeux, Maccagni, Madau, Marigo, Martínez-Delgado, Martínez-Delgado, McGaugh, McGee, Meurer, Micheva, Mihos, Molinari, Mouhcine, Ménard, Noeske, Prochaska, R. S. de Jong, Radburn-Smith, Rejkuba, Riffeser, Rudy, Sackett, Salpeter, Seth, Shang, Slater, Stinson, Tal, Tanaka, Tisserand, Vaduvescu, van Dokkum, van Dokkum, van Dokkum, Witt, Wu, Zackrisson, Zackrisson, Zackrisson, Zackrisson, Zaritsky, Zepf, Zheng, Zibetti, Zibetti, Zolotov   +81 more
core   +1 more source

Infrared Variability of the Gliese 569B System [PDF]

, 2012
Gliese 569B is a multiple brown dwarf system whose exact nature has been the subject of several investigations over the past few years. Interpretation has partially relied on infra-red photometry and spectroscopy of the resolved components of the system.
Kenworthy, Matthew A., Scuderi, Louis J.
core   +3 more sources

Photometry

Science, 1927
Printed in Great Britain. ; Bibliography at end of each chapter. ; Mode of access: Internet.
openaire   +2 more sources

Cracking the Valence Code: Patterned Facial Kinematics and Neural Signatures of Emotional Expressions in Mice

Advanced Science, EarlyView.
An AI‐powered system decodes emotional valence from mouse facial expressions, identifying ear dynamics as key indicators. By integrating facial kinematics with synchronized neural recordings, this approach establishes a direct link between behavior and brain activity, advancing automated emotion recognition in animal models.
Yujia Chen, Ruiqing Hou, Zhinan Chen, Junli Lu, Si Chen, Shisheng Xiong, Jianfeng Feng, Trevor W. Robbins, Haitao Yan, Xiao Xiao   +9 more
wiley   +1 more source