Results 41 to 50 of about 1,270 (239)

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

The X-Ray Emission Reveals the Coronal Activities of Semi-detached Binaries

The Astrophysical Journal
X-ray emission is an important tracer of stellar magnetic activity. We carried out a systematic correlation analysis for the X-ray luminosity $\mathrm{log}{L}_{{\rm{X}}}$ , bolometric luminosity $\mathrm{log}{L}_{\mathrm{bol}}$ , and X-ray activity ...
Junhui Liu, Jianfeng Wu
doaj   +1 more source

Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses

Advanced Functional Materials, EarlyView.
By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso, Alec Lamoreux, Nicola Pugno, James J. C. Busfield, Federico Carpi   +4 more
wiley   +1 more source

Tilted Disk Precession and Negative Superhumps in HS 2325+8205: A Multiwindow Analysis

The Astrophysical Journal
Tilted disk precession exists in different objects. Negative superhumps (NSHs) in cataclysmic variable stars are believed to arise from the interaction between the reverse precession of a tilted disk and the streams from the secondary star.
Qi-Bin Sun, Sheng-Bang Qian, Li-Ying Zhu, Qin-Mei Li, Min-Yu Li, Ping Li   +5 more
doaj   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

A New IW And-type Star: Karachurin 12 with Tilted Disks and Diverse Cycles

The Astrophysical Journal
The IW And-type phenomenon in cataclysmic variables presents a significant challenge to the accretion disk instability model. Using photometric data from the All-Sky Automated Survey for Supernovae, the Zwicky Transient Facility, and the Transiting ...
Qi-Bin Sun, Sheng-Bang Qian, Li-Ying Zhu, Qin-Mei Li, Fu-Xing Li, Min-Yu Li, Ping Li   +6 more
doaj   +1 more source

WASP 0639-32: a new F-type subgiant/K-type main-sequence detached eclipsing binary from the WASP project [PDF]

, 2018
Aims. Our aim is to measure the masses and radii of the stars in a newly-discovered detached eclipsing binary system to a high precision (˜1%), enabling the system to be used for the calibration of free parameters in stellar evolutionary models.Methods ...
Hellier, Maxted
core   +1 more source

Detailed models of interacting short-period massive binary stars

, 2022
Context. The majority of massive stars are part of binary systems. In about a quarter of these, the companions are so close that mass transfer occurs while they undergo core hydrogen burning, first on the thermal and then on the nuclear timescale.
Xu, X., Schootemeijer, A., K. Sen, S. E. de Mink, Schürmann, C., de Mink, S.E., X. T. Xu, A. Menon, Schuermann, C., Sen, K., Marchant, P., de Mink, S., Wang, C., Langer, N., Xu, X.T., C. Schürmann, Nathaniel, K., Sana, H., B. Hastings, N. Langer, K. Nathaniel, Menon, A., H. Sana, C. Wang, A. Schootemeijer, Mahy, L., Hastings, B., L. Mahy, P. Marchant   +28 more
core   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

LISA Galactic Binaries with Astrometry from Gaia DR3

The Astrophysical Journal
Galactic compact binaries with orbital periods shorter than a few hours emit detectable gravitational waves (GWs) at low frequencies. Their GW signals can be detected with the future Laser Interferometer Space Antenna (LISA).
Thomas Kupfer, Valeriya Korol, Tyson B. Littenberg, Sweta Shah, Etienne Savalle, Paul J. Groot, Thomas R. Marsh, Maude Le Jeune, Gijs Nelemans, Anna F. Pala, Antoine Petiteau, Gavin Ramsay, Danny Steeghs, Stanislav Babak   +13 more
doaj   +1 more source