Results 81 to 90 of about 52,158 (299)

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

Advanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann, Ryan Kalgreen, Laura M. Comella   +2 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

MASS TRANSFER IN ECLIPSING BINARY STARS

Odessa Astronomical Publications, 2017
Analysis of the properties of the eclipsing binary stars shows, that the stream-like mechanism of the mass transfer switches on at a contact evolutionary stage, preceding to a stage of binaries with a subgiant.
V. G. Karetnikov, E. V. Menchenkova, V. V. Nazarenko   +2 more
doaj   +1 more source

Contact Binary Stars as Standard Candles

, 1995
review presented at Binaries in Clusters meeting, Calgary, Alberta, June 19-23, 1995. uufiles compressed Post-Script text and 4 figures.
openaire   +2 more sources

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Photometric and Spectroscopic Analysis of Eight Totally Eclipsing Contact Binaries with Small Mass Ratios

The Astrophysical Journal
This paper selected eight totally eclipsing contact binaries for photometric and spectroscopic studies. Spectral data were analyzed by University of Lyon Spectroscopic analysis Software, and photometric data were analyzed using PHOEBE through Markov ...
Li-Heng Wang, Kai Li, Ya-Ni Guo, Jing-Yi Wang, Xiang Gao, Xing Gao, Guo-You Sun   +6 more
doaj   +1 more source

The Short Period End of the Distribution of Contact Binary Stars

, 2013
Presented at the "40 Years of Variable Stars: A Celebration of Contributions by Horace A. Smith" conference (arXiv:1310.0149).
Van Noord, Daniel, Steenwyk, Steven, Molnar, Lawrence   +2 more
openaire   +2 more sources

First Light Curve Analysis of NSVS 8294044, V1023 Her, and V1397 Her Contact Binary Systems [PDF]

Research in Astronomy and Astrophysics
The first photometric light curve investigation of the NSVS 8294044, V1023 Her, and V1397 Her binary systems is presented. We used ground-based observations for the NSVS 8294044 system and Transiting Exoplanet Survey Satellite data for V1023 Her and ...
A. Poro, S. Baudart, Mahshid Nourmohammad, Zahra Sabaghpour Arani, Fatemeh Farhadi, Selda Ranjbar Salehian, Ahmad Sarostad, Saeideh Ranjbaryan Iri Olya, Maryam Hadizadeh, AmirHossein Khodaei   +9 more
semanticscholar   +1 more source

IN4MER Biomaterial Ink: A Phosphorescent Biosensing Biomaterial Ink for Multiple Analytes (Glucose, Lactate, Oxygen) Measurements and Temperature Sensing Applications

Advanced Functional Materials, EarlyView.
Multianalyte, real‐time monitoring of bioprinted scaffolds remains challenging. Phosphorescence‐lifetime–based, optically responsive microparticles are embedded in diverse printable hydrogels (κ‐carrageenan, GelMA, PEGDA) to form biomaterial inks that report oxygen, glucose, lactate, and temperature.
Waqas Saleem, David Chimene, Berkley P. White, Kaivalya A. Deo, Jeremy L. Thomas, Nithin Chidambara, Cole Mandrona, Kirsten Landsgaard, Brian Ko, Roland Kaunas, Akhilesh K. Gaharwar, Michael J. McShane   +11 more
wiley   +1 more source

Two Ultralow-mass-ratio Binary Systems at Critical Evolutionary Stages

The Astronomical Journal
In this paper, we present photometric observations and period analysis of two totally eclipsing binaries with extremely low-amplitude light curves. Both binaries exhibit typical W Ursae Majoris-type light curves with total eclipses, allowing for the ...
Di-Fu Guo, Kai Li, Fen Liu, Li-heng Wang, Huai-Zhen Li, Xu Chen, Xiang Gao   +6 more
doaj   +1 more source