Results 21 to 30 of about 1,007,247 (237)

Multi-Scene Doppler Power Spectrum Modeling of LEO Satellite Channel Based on Atlas Fingerprint Method

IEEE Access, 2021
The modeling of low earth orbit (LEO) satellite channel depends on its Doppler power spectrum. Due to satellite during transit, diversity and dynamic channel scene, the modeling of Doppler power spectrum has two serious problems: one is that the shape of
Wen Liu, Shixuan Zheng, Zhongliang Deng, Ke Wang, Wenliang Lin, Jizhao Lei, Yihui Jin, Hao Liu   +7 more
doaj   +1 more source

A spindle cell squamous cell carcinoma on the cheek presenting with in-transit metastases and a satellite lesion

Archives of Craniofacial Surgery, 2020
Spindle cell squamous cell carcinoma (SpSCC) is a biphasic tumor composed of squamous cell epithelial and spindle cell mesenchymal components, both of which are malignant.
E. Lee
semanticscholar   +1 more source

Transiting Exoplanet Survey Satellite (TESS) [PDF]

SPIE Proceedings, 2014
The Transiting Exoplanet Survey Satellite (TESS) will discover thousands of exoplanets in orbit around the brightest stars in the sky. In a two-year survey, TESS will monitor more than 500,000 stars for temporary drops in brightness caused by planetary transits.
G.~R. Ricker, J.~N. Winn, R Vanderspek, D.~W. Latham, G.~Á. Bakos, J.~L. Bean, Z.~K. Berta-Thompson, T.~M. Brown, L Buchhave, N.~R. Butler, R.~P. Butler, W.~J. Chaplin, D Charbonneau, J Christensen-Dalsgaard, M Clampin, D Deming, J Doty, N De Lee, C Dressing, E.~W. Dunham, M Endl, F Fressin, J Ge, T Henning, M.~J. Holman, A.~W. Howard, SHIGERU IDA, J.~M. Jenkins, G Jernigan, J.~A. Johnson, L Kaltenegger, N Kawai, H Kjeldsen, G Laughlin, A.~M. Levine, D Lin, J.~J. Lissauer, P MacQueen, G Marcy, P.~R. McCullough, T.~D. Morton, N Narita, M Paegert, E Palle, F Pepe, J Pepper, A Quirrenbach, S.~A. Rinehart, D Sasselov, Bunei Sato, S Seager, A Sozzetti, K.~G. Stassun, P Sullivan, A Szentgyorgyi, G Torres, S Udry, J Villasenor   +57 more
openaire   +5 more sources

The chemokine receptor CXCR4 regulates satellite cell activation, early expansion, and self-renewal, in response to skeletal muscle injury

Frontiers in Cell and Developmental Biology, 2022
Acute skeletal muscle injury is followed by satellite cell activation, proliferation, and differentiation to replace damaged fibers with newly regenerated muscle fibers, processes that involve satellite cell interactions with various niche signals.
Ahmed S. Shams, Ahmed S. Shams, Ahmed S. Shams, Robert W. Arpke, Robert W. Arpke, Micah D. Gearhart, Johannes Weiblen, Johannes Weiblen, Ben Mai, Ben Mai, David Oyler, David Oyler, Darko Bosnakovski, Darko Bosnakovski, Omayma M. Mahmoud, Gamal M. Hassan, Michael Kyba, Michael Kyba   +17 more
doaj   +1 more source

A Blind Search for Transit Depth Variability with TESS

The Astronomical Journal, 2023
The phenomenon of transit depth variability offers a pathway through which processes such as exoplanet atmospheric activity and orbital dynamics can be studied.
Gavin Wang, Néstor Espinoza
doaj   +1 more source

HIGH-RESOLUTION SATELLITE IMAGING OF THE 2004 TRANSIT OF VENUS AND ASYMMETRIES IN THE CYTHEREAN ATMOSPHERE [PDF]

, 2011
Jay M. Pasachoff, Glenn Schneider, Thomas Widemann   +2 more
openalex   +2 more sources

TESS Observations of Kepler Systems with Transit Timing Variations [PDF]

Astronomical Journal, 2022
We identify targets in the Kepler field that may be characterized by transit timing variations and are detectable by the Transiting Exoplanet Survey Satellite (TESS).
D. Jontof-Hutter, P. Dalba, J. Livingston   +2 more
semanticscholar   +1 more source

Transit least-squares survey. IV. Earth-like transiting planets expected from the PLATO mission [PDF]

Astronomy & Astrophysics, 2022
In its long-duration observation phase, the PLATO satellite will observe two non-overlapping fields for a total of 4 yr. The exact duration of each pointing will be determined 2 yr before launch. Previous estimates of PLATO's yield of Earth-sized planets
R. Heller, Jan-Vincent Harre, R. I. F. C. R. Research, Gottingen, Institute of planetary Research, German Aerospace Center, Lesia, Observatoire de Paris   +7 more
semanticscholar   +1 more source

Revisiting the Transit Timing Variations in the TrES-3 and Qatar-1 Systems with TESS Data [PDF]

Astronomical Journal, 2022
We present and analyze 58 transit light curves of TrES-3b and 98 transit light curves of Qatar-1b, observed by the Transiting Exoplanet Survey Satellite, plus two transit light curves of Qatar-1b, observed by us, using a ground-based 1.23 m telescope ...
V. Mannaday, Parijat Thakur, J. Southworth, I. Jiang, D. Sahu, L. Mancini, M. Vavnko, E. Kundra, Pavol Gajdoš, N. A-thano, D. Sariya, L. Yeh, E. Griv, D. Mkrtichian, A. Shlyapnikov   +14 more
semanticscholar   +1 more source

Identifying Planetary Transit Candidates in TESS Full-frame Image Light Curves via Convolutional Neural Networks [PDF]

Astronomical Journal, 2021
The Transiting Exoplanet Survey Satellite (TESS) mission measured light from stars in ∼75% of the sky throughout its 2 yr primary mission, resulting in millions of TESS 30-minute-cadence light curves to analyze in the search for transiting exoplanets. To
G. Olmschenk, Stela Ishitani Silva, G. Rau, R. Barry, Ethan Kruse, Luca Cacciapuoti, V. Kostov, B. Powell, E. Wyrwas, J. Schnittman, T. Barclay   +10 more
semanticscholar   +1 more source