Results 141 to 150 of about 73,378 (298)

A Biochar‐Based Composite Hydrogel Microenvironment for Enhanced Biocatalysis

open access: yesAdvanced 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   +9 more
wiley   +1 more source

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

open access: yesThe 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   +3 more
doaj   +1 more source

Possible signatures for strange stars in stellar X-ray binaries

open access: yes, 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   +2 more
core   +1 more source

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

open access: yesAdvanced Materials, EarlyView.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao   +8 more
wiley   +1 more source

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

open access: yesThe 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

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

open access: yesAdvanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang   +5 more
wiley   +1 more source

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

open access: yesThe 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   +4 more
doaj   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Einstein Probe Discovery of EP J005245.1−722843: A Rare Be–White Dwarf Binary in the Small Magellanic Cloud?

open access: yesThe Astrophysical Journal Letters
On 2024 May 27, the Wide-field X-ray Telescope on board the Space Sciences, University of Chinese Academy of Einstein Probe (EP) mission detected enhanced X-ray emission from a new transient source in the Small Magellanic Cloud during its commissioning ...
A. Marino   +34 more
doaj   +1 more source

Sonic-Point Model for High-Frequency QPOs in Neutron Star Low-Mass X-Ray Binaries

open access: yes, 1997
3 pages LaTeX using sprocl.sty (available from ftp://ftp-astro-theory.fnal.gov/pub/Personal/texas/sprocl.sty), to appear in Proceedings of the 18th Texas Symposium on Relativistic Astrophysics (eds Olinto, Frieman and Schramm, World Scientific)
Miller, M. Coleman   +2 more
openaire   +2 more sources

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