Results 41 to 50 of about 71,333 (243)

Ultrafast near infrared photoinduced absorption in a multiferroic single crystal of bismuth ferrite

, 2015
We studied the ultrafast third-order optical nonlinearity in a single crystal of multiferroic bismuth ferrite (BiFeO3) in the near-infrared range of 0.5-1.0 eV, where the material is fundamentally transparent,at room temperature. With pump pulses at 1.55
Ashida, Masaaki, Ito, Toshimitsu, Matsubara, Eiichi, Mochizuki, Takeshi, Nagai, Masaya   +4 more
core   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

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

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

Radio Observations of GRB Host Galaxies

, 2014
We present 5.5 and 9.0 GHz observations of a sample of seventeen GRB host galaxies at 0 ...
Davies, Luke J M, Levan, A J, Stanway, E R   +2 more
core   +1 more source

Pan-STARRS1 Discovery of Two Ultra-Luminous Supernovae at z ~ 0.9 [PDF]

, 2011
We present the discovery of two ultra-luminous supernovae (SNe) at z ~ 0.9 with the Pan-STARRS1 Medium-Deep Survey. These SNe, PS1-10ky and PS1-10awh, are amongst the most luminous SNe ever discovered, comparable to the unusual transients SN 2005ap and ...
A. M. Soderberg, A. Rest, A. Riess, Abazajian, Barbary, C. W. Stubbs, Chatzopoulos, Chevalier, Chevalier, Chevalier, Contardo, D. C. Martin, Drout, E. A. Magnier, E. Berger, Faber, Foley, Frail, Frail, G. Narayan, Gaensler, Gezari, Gänsicke, H. Flewelling, Hogg, I. Czekala, Immler, Ivezic, J. D. Neill, J. L. Tonry, J. S. Morgan, Jeffery, K. C. Chambers, K. C. Roth, K. Forster, Kasen, Katz, Kewley, Kocevski, L. Chomiuk, M. E. Huber, MacFadyen, Magnier, Malesani, Miller, Mink, Modjaz, N. E. Sanders, N. Kaiser, Nakar, Neill, Nugis, Ofek, Onaka, P. A. Price, Pastorello, Perley, Quimby, R. A. Chevalier, R. Chornock, R. J. Foley, R. J. Wainscoat, R. P. Kirshner, R.-P. Kudritzki, Rest, S. A. Rodney, S. Gezari, S. J. Smartt, Schlegel, Shklovskii, Smith, Smith, Smith, Stoll, Stubbs, Tonry, Tremonti, van der Horst, W. M. Wood-Vasey, W. S. Burgett, Woosley, York   +81 more
core   +2 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

A Luminous and Hot Infrared through X-Ray Transient at a 5 kpc Offset from a Dwarf Galaxy

The Astrophysical Journal
We are searching for hot, constant-color, offset optical flares in the Zwicky Transient Facility data stream that are >10″ from any galaxy in public imaging data from the PanSTARRS survey. Here, we present the first discovery from this search: AT 2024puz,
Jean J. Somalwar, Vikram Ravi, Raffaella Margutti, Ryan Chornock, Priyamvada Natarajan, Wenbin Lu, Charlotte Angus, Matthew J. Graham, Erica Hammerstein, Edward Nathan, Matt Nicholl, Kritti Sharma, Robert Stein, Frank Verdi, Yuhan Yao, Eric C. Bellm, Tracy X. Chen, Michael W. Coughlin, David Hale, Mansi M. Kasliwal, Russ R. Laher, Reed Riddle, Jesper Sollerman   +22 more
doaj   +1 more source