Results 71 to 80 of about 92,393 (340)

Investigating Transit Timing Variations in the Ultrashort Period Exoplanet WASP-19b

The Astronomical Journal
In this study, we present a comprehensive analysis of transit timing variations (TTVs) in the ultrashort-period gas giant WASP-19b, which orbits a G-type main-sequence star.
Shraddha Biswas, Ing-Guey Jiang, Li-Chin Yeh, Hsin-Min Liu, Kaviya Parthasarathy, Devesh P. Sariya, D. Bisht, Mohit Singh Bisht, A. Raj   +8 more
doaj   +1 more source

A SIMULATION MODEL OF A PACKET SWITCHING SATELLITE NETWORK WITH DIFFERENT ORBIT HEIGHTS SEGMENT

Радіоелектронні і комп'ютерні системи, 2016
A simulation model of a packet switching satellite network based on a satellite constellation with different orbit heights is presented. The model is meant for analysis of load and data routing at the initial stages of designing of a satellite ...
Т. В. Лабуткина, В. А. Ларин, В. В. Беликов, А. В. Борщёва, А. А. Тихонова, Д. И. Деревяшкин   +5 more
doaj   +1 more source

Dark Transit of Jupiter's First Satellite [PDF]

Nature, 1884
ON May 18, at 8h., on observing Jupiter with my 10-inch reflector, p. 252, I saw three very dark spots—one near the planet's centre, and two others not far advanced upon the east limb. These I took to be the shadows of satellites, and on reference found that the shadows of Satellites I. and II. were really upon the planet; also Satellite I. itself. The
openaire   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source

Research on the Impact of Driverless Car Technology Development on Future Urban Rail Transit

Chengshi guidao jiaotong yanjiu
［Objective］ The possible impact of the development of driverless car technology on future urban rail transit is explored, and the role of driverless cars in urban transportation systems as well as their impact on the existing urban transportation ...
GE Shiping
doaj   +1 more source

CHEOPS: A transit photometry mission for ESA's small mission programme

EPJ Web of Conferences, 2013
Ground based radial velocity (RV) searches continue to discover exoplanets below Neptune mass down to Earth mass. Furthermore, ground based transit searches now reach milli-mag photometric precision and can discover Neptune size planets around bright ...
Queloz D., Pollacco D., Piotto G., Pagano I., Oloffson G., Meyer M., Liseau R., Gillon M., Ivanov A., Deleuil M., Benz W., Baumjohann W., Alibert Y., Ehrenreich D., Fortier A., Broeg C., Ragazzoni R., Renotte E., Steller M., Thomas N.   +19 more
doaj   +1 more source

The Analysis of Tram Tracks Geometric Layout Based on Mobile Satellite Measurements

Urban Rail Transit, 2017
In this article, the results of the research in a field of which uses active global navigation satellite system (GNSS) geodetic networks for the inventory of geodetic geometric tram tracks are presented. The applied measurement technique has been adapted
Cezary Specht, Wladyslaw Koc, Piotr Chrostowski, Jacek Szmaglinski   +3 more
doaj   +1 more source

TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf

The Astrophysical Journal Letters, 2023
We report the discovery and validation of two long-period giant exoplanets orbiting the early K dwarf TOI-4600 ( V = 12.6, T = 11.9), first detected using observations from the Transiting Exoplanet Survey Satellite (TESS) by the TESS Single Transit ...
Ismael Mireles, Diana Dragomir, Hugh P. Osborn, Katharine Hesse, Karen A. Collins, Steven Villanueva, Allyson Bieryla, David R. Ciardi, Keivan G. Stassun, Mallory Harris, Jack J. Lissauer, Richard P. Schwarz, Gregor Srdoc, Khalid Barkaoui, Arno Riffeser, Kim K. McLeod, Joshua Pepper, Nolan Grieves, Vera Maria Passegger, Solène Ulmer-Moll, Joseph E. Rodriguez, Dax L. Feliz, Samuel Quinn, Andrew W. Boyle, Michael Fausnaugh, Michelle Kunimoto, Pamela Rowden, Andrew Vanderburg, Bill Wohler, Jon M. Jenkins, David W. Latham, George R. Ricker, Sara Seager, Joshua N. Winn   +33 more
doaj   +1 more source

Phase transitions and convection in Icy satellites

Geophysical Research Letters, 1986
The effects of solid‐solid phase changes on subsolidus convection in the large icy moons of the outer solar system are considered. Phase transitions affect convection via processes that distort the phase change boundary and/or influence buoyancy through thermal expansion.
D. Bercovici, G. Schubert, R. T. Reynolds   +2 more
openaire   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source