Results 41 to 50 of about 70,958 (245)

Spherical Bi₂WO₆/Bi₂S₃/MoS₂ n-p Heterojunction with Excellent Visible-Light Photocatalytic Reduction Cr(VI) Activity

Nanomaterials, 2020
Exploiting excellent photocatalytic activity and stable heterostructure composites are of critical importance for environmental sustainability. The spherical Bi2WO6/Bi2S3/MoS2 n-p heterojunction is first prepared via an in situ hydrothermal method using ...
Jing Ren, Tingting Hu, Qinghua Gong, Qian Wang, Bin Sun, Tingting Gao, Pei Cao, Guowei Zhou   +7 more
doaj   +1 more source

Novel laser gain and time-resolved FTIR studies of photochemistry [PDF]

, 1990
Several techniques are discussed which can be used to explore laboratory photochemical processes and kinetics relevant to planetary atmospheres; these include time-resolved laser gain-versus-absorption spectroscopy and time-resolved Fourier transform ...
Leone, Stephen R.
core   +1 more source

An Updated Ultraviolet Calibration for the Swift/UVOT

, 2011
We present an updated calibration of the Swift/UVOT broadband ultraviolet (uvw1, uvm2, and uvw2) filters. The new calibration accounts for the ~1% per year decline in the UVOT sensitivity observed in all filters, and makes use of additional calibration ...
Breeveld, A. A., Holland, S. T., Kuin, N. P. M., Landsman, W., Page, M. J., Roming, P.   +5 more
core   +1 more source

YIPFα1A expression is regulated by multilayered molecular mechanisms

FEBS Open Bio, EarlyView.
YIPFα1A, a five‐pass Golgi protein, is regulated at multiple layers. (1) Rare‐codon enrichment drives translation‐coupled mRNA decay. (2) A proximal 3′‐UTR element stabilizes mRNA. (3) A distal 3′‐UTR element included by alternate poly(A) site usage represses translation, which can be overridden by the proximal 3′‐UTR element.
Tokio Takaji, Yurika Nakanishi, Nobuhiro Nakamura   +2 more
wiley   +1 more source

A Plasma Instability Theory of Gamma-Ray Burst Emission [PDF]

, 1999
A new theory for gamma-ray burst radiation is presented. In this theory, magnetic fields and relativistic electrons are created through plasma processes arising as a relativistic shell passes through the interstellar medium.
J. J. Brainerd, Rees M. J.
core   +3 more sources

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Eddington Envelopes: The Fate of Stars on Parabolic Orbits Tidally Disrupted by Supermassive Black Holes

The Astrophysical Journal Letters
Stars falling too close to massive black holes in the centers of galaxies can be torn apart by the strong tidal forces. Simulating the subsequent feeding of the black hole with disrupted material has proved challenging because of the range of timescales ...
Daniel J. Price, David Liptai, Ilya Mandel, Joanna Shepherd, Giuseppe Lodato, Yuri Levin   +5 more
doaj   +1 more source

Phase-Matching for Generation of Isolated Attosecond XUV and Soft-X-Ray Pulses with Few-Cycle Drivers

Physical Review X, 2020
Isolated attosecond pulses (IAPs) produced through laser-driven high-harmonic generation (HHG) hold promise for unprecedented insight into physical, chemical, and biological processes via attosecond x-ray diffraction and spectroscopy with tabletop ...
J. Schötz, B. Förg, W. Schweinberger, I. Liontos, H. A. Masood, A. M. Kamal, C. Jakubeit, N. G. Kling, T. Paasch-Colberg, S. Biswas, M. Högner, I. Pupeza, M. Alharbi, A. M. Azzeer, M. F. Kling   +14 more
doaj   +1 more source

Disentangling jet and disc emission from the 2005 outburst of XTE J1118+480 [PDF]

, 2010
The black hole X-ray transient, XTE J1118+480, has now twice been observed in outburst - 2000 and 2005 - and on both occasions remained in the low/hard X-ray spectral state. Here we present radio, infrared, optical, soft X-ray and hard X-ray observations
Baars, Bessell, Brocksopp, Brocksopp, Brocksopp, Brocksopp, Brocksopp, C. Brocksopp, C. Zurita, Cardelli, Chaty, Chiang, Chou, Chou, D. Maitra, Done, Fender, Fender, Frontera, G. G. Pooley, G. Ramsay, Gierliński, Gierliński, H. A. Krimm, Hynes, Hynes, Hynes, Hynes, Jonker, Kanbach, Kuulkers, Maitra, Markoff, Markoff, McClintock, Migliari, Miller, Miller-Jones, P. G. Jonker, Pooley, Pooley, Reis, Remillard, Remillard, Rothschild, Rupen, Russell, Rykoff, Swank, Wilson, Zdziarski, Zdziarski, Zurita, Zurita, Zurita, Zurita   +55 more
core   +3 more sources

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source