Results 81 to 90 of about 2,381,779 (247)

GY Tel: a new thermally decoupled near contact binary system [PDF]

, 2022
GY Tel is a short period (0.446 d) eclipsing binary system of 12th magnitude showing a large difference(0.85 mag) in the depths of minima. The first UBV observations obtained at Bosque Alegre (Córdoba) and at CASLEO (San Juan) are presented.
Sisteró, Roberto Félix, Lípari, Sebastián Luis   +1 more
core  

Cryogenic Deformation Behavior of TiAl and Insights Into Embrittlement After High‐Temperature Exposure Combined With Secondary Ion Mass Spectroscopy of Near Surface Chemistry

Advanced Engineering Materials, EarlyView.
Near‐surface deuterium enrichment profiles for different microstructural types of TiAl after exposure at 700 °C in a heavy water‐containing environment. The deuterium levels are significantly higher than expected from natural occurrence, indicating that the heavy water dissociated during the exposure treatment and entered the specimens.
Jonathan D. H. Paul, Alexander Welle, Dirk Matthiessen, Michael Oehring, Fritz Appel, Florian Pyczak   +5 more
wiley   +1 more source

Contact-Based Method to Evaluate Mixing in Multicomponent Experiments and Simulations

, 2021
A contact-based method to evaluate mixing in a multicomponent system is proposed in this work. The proposed method is based on spatial contact frequency.
Christopher M. Boyce, Kenan Xi (10711603), Christopher M. Boyce (5505155), Kenan Xi, Qiang Guo, Qiang Guo (218747), Youjun Lu (4708534), Youjun Lu   +7 more
core   +2 more sources

Attributing the O’Connell Effect in Contact Binaries to a Cooling Mass-transfer Stream

The Astrophysical Journal
Contact binaries are very short-period systems that are continuously interacting by transferring mass and energy. Obtaining large, statistical samples of contact binaries from photometric surveys can put valuable constraints on the various processes ...
Matthias Fabry, Andrej Prša
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Theories of Contact Binary Stars [PDF]

Symposium - International Astronomical Union, 1980
We review and contrast two current theories for the structure of contact binary stars: discontinuity theory and thermal relaxation oscillation theory. We find that the two theories are complementary with the crucial theoretical issue to be resolved being the secular stability of the temperature inversion layer. Critical observational tests remain to be
openaire   +1 more source

The Final Step in Contact Binary Star Formation

, 2023
A binary star is a system that contains two stars orbiting each other. A contact binary is a binary star whose component stars are so close that they share the same atmosphere (see Figure 1).
Phippen, Henry, Carr, Levi, Molnar, Larry A.   +2 more
core  

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

Advanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese, Bokeon Kwak, Gaia de Marzo, Giulia Coco, Valentina Antonaci, Leonardo Lamanna, Massimo De Vittorio, Dario Floreano, Mario Caironi   +8 more
wiley   +1 more source

Asteroseismology for Probing the Interior Structure and Orbital Stability of Extremely Low Mass Ratio Contact Binaries

The Astrophysical Journal
Theoretical investigations predict a minimum mass ratio of about 0.085–0.095 for contact binaries. If the mass ratio is below the critical value, a tidal instability occurs, forcing the stars to merge into a single object.
Xiaobin Zhang, Xinghao Chen, Yan Li, Jianning Fu   +3 more
doaj   +1 more source

A Analysis of the Light and Radial Velocity Curves of do CAS [PDF]

Journal of Astronomy and Space Sciences, 2000
DO Cas is a short period (P=0.68day) eclipsing binary star and is classified as a near-contact binary by Shaw (1990). There is no published radial velocity curve for this short period binary after Mannino (1958).
Young Sook Ahn, Ho-Il Kim, Woo-Baik Lee
doaj