Results 171 to 180 of about 142,213 (355)

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

Advanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi, Daniele Zucchelli, Zeinab Hamid, Christina Kousseff, Arup Sarkar, Aristea Pavlou, Zhitian Ling, Somayeh Kashani, Iain McCulloch, Paul W. M. Blom, Fabrizio Torricelli, Paschalis Gkoupidenis   +11 more
wiley   +1 more source

Inferring neutron stars crust properties from quiescent thermal emission [PDF]

, 2015
The observation of thermal emission from isolated neutron stars and the modeling of the corresponding cooling curves has been very useful to get information on the properties of matter at very high densities.
Aguilera, Deborah N., Turlione, Anabela
core   +1 more source

The Wolf-Rayet binaries of the nitrogen sequence in the Large Magellanic Cloud: spectroscopy, orbital analysis, formation, and evolution

, 2019
Massive Wolf-Rayet (WR) stars dominate the radiative and mechanical energy budget of galaxies and probe a critical phase in the evolution of massive stars prior to core-collapse.
Goetberg, Y., Hainich, R., Hamann, W. -R., Moffat, A. F. J., Oskinova, L. M., Ramachandran, V., Sablowski, D. P., Sana, H., Sander, A. A. C, Schnurr, O., Shenar, T., St-Louis, N., Todt, H, Vanbeveren, D.   +13 more
core   +1 more source

CLOUDY and the High-resolution Microcalorimeter Revolution: Optical, UV, and X-Ray Spectra of One-electron Systems

The Astrophysical Journal
With the launch of the XRISM microcalorimeter mission, space-based X-ray observations will achieve a record spectral resolving power of R  ≡  E /Δ E  ∼ 1200.
Chamani M. Gunasekera, Peter A. M. van Hoof, Marios Chatzikos, Gary J. Ferland   +3 more
doaj   +1 more source

The Distance, Mass, and Radius of the Neutron Star in 4U 1608-52

, 2010
Low mass X-ray binaries that show thermonuclear bursts are ideal sources for constraining the equation of state of neutron star matter. The lack of independent distance measurements for most of these sources, however, prevents a systematic exploration of
Alves, Antonio Cabrera-Lavers, Arnaud, Cohen, Durant, Durant, Feryal Özel, Galloway, Grocholski, Heinke, Ibata, Ibata, Juett, Juett, Lattimer, Madej, Paczynski, Patricia Wroblewski, Penninx, Pietrzyński, Predehl, Skrutskie, Thorsett, Tolga Güver, Ueda, van Paradijs, Wachter, Webb, Wilms, Wroblewski, Özel   +30 more
core   +1 more source

A Biochar‐Based Composite Hydrogel Microenvironment for Enhanced Biocatalysis

Advanced Materials, EarlyView.
This work presents the synthesis of a polyacrylamide hydrogel wherein biomass‐derived biochar is co‐encapsulated with the enzyme horseradish peroxidase (HRP). The resulting composite hydrogel possesses balanced electron‐rich and electron‐deficient domains, creating an optimal microenvironment that concentrates both hydrogen peroxide and phenol ...
Shengzhe Wang, Jingling Zhu, Weiyang Xue, Yuting Wen, Zhongxing Zhang, Xia Song, Yuan Yu, Chenglin Sun, Huangzhao Wei, Jun Li   +9 more
wiley   +1 more source

A Transition Discovered in the Subcritical Regime of 1A 0535+262

The Astrophysical Journal
We present NICER observations of the accreting X-ray pulsar 1A 0535+262 during its faint state (≲6 × 10 ^36 erg s ^−1 ), observed in several type I and type II outbursts.
Hua Xiao, Long Ji
doaj   +1 more source

Possible signatures for strange stars in stellar X-ray binaries

, 1999
Kilohertz quasi-periodic brightness oscillations (kHz QPOs) observed in certain X-ray burst sources may represent Keplerian frequencies in the inner regions of the accretion disk in such systems.
Bombaci, Ignazio, Datta, Bhaskar, Thampan, Arun V.   +2 more
core   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

Advanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju, Roshan Velluvakandy, Xianghua Wu, Miguel Angel Merlos Rodrigo, Zbyněk Heger, Kamila Bendíčková, Jan Frič, Martin Pumera   +7 more
wiley   +1 more source

Spectral Analysis of Cygnus X-3 Using Simultaneous AstroSat and Insight-HXMT Observations

The Astrophysical Journal
We present the results from a spectral analysis of Cygnus X-3 using simultaneous data from AstroSat and Insight-HXMT during its soft state. A pure reflection spectrum, including emission lines of iron, silicon, and sulfur, provides a good fit to the ...
Suraj K. Chaurasia, Gitika Mall, Ruchika Dhaka, Ranjeev Misra, Amit Pathak   +4 more
doaj   +1 more source