Results 71 to 80 of about 91,619 (296)

Modelling the black hole silhouette in Sgr A* with ion tori

, 2012
We calculate the "observed at infinity" image and spectrum of the accretion structure in Sgr A*, by modelling it as an optically thin, constant angular momentum ion torus in hydrodynamic equilibrium.
Abramowicz, Abramowicz, Abramowicz, Baganoff, Bardeen, Björnsson, Blaes, Bower, Broderick, Dermer, Dexter, Dodds-Eden, Doeleman, E. Gourgoulhon, Eckart, Eisenhauer, Eisner, Esin, Esin, F. H. Vincent, Falcke, Genzel, Gillessen, Goldston, Hilburn, Huang, Ichimaru, Jaroszynski, Johannsen, Komissarov, Kusunose, Liu, M. A. Abramowicz, Mahadevan, Mahadevan, Marrone, Mościbrodzka, Narayan, Narayan, Narayan, Narayan, O. Straub, Papaloizou, Psaltis, Qian, Rees, Schödel, Schödel, Shapiro, Stepney, Svensson, T. Paumard, Telesco, Vincent, Yuan, Zhao, Zylka, Özel   +57 more
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Computer Simulations of Cosmic Reionization

, 2009
The cosmic reionization of hydrogen was the last major phase transition in the evolution of the universe, which drastically changed the ionization and thermal conditions in the cosmic gas.
Gnedin, Nickolay Y., Trac, Hy
core   +1 more source

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Effect of Mask Regions on Weak Lensing Statistics

, 2013
Sky masking is unavoidable in wide-field weak lensing observations. We study how masks affect the measurement of statistics of matter distribution probed by weak gravitational lensing.
Hamana, Takashi, Shirasaki, Masato, Yoshida, Naoki   +2 more
core   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

On the Properties of Turbulence in the Remnant of the Tycho Supernova

The Astrophysical Journal
We investigate the turbulent structures in the Tycho supernova remnant (SNR) by applying two-point autocorrelation and power spectral analyses to high-resolution X-ray and radio images.
Oleh Petruk, Taras Kuzyo
doaj   +1 more source

Development and Verification of 2D Kinetic MOC Code Based on GPU

Yuanzineng kexue jishu, 2022
Time-dependent, whole-core calculation with high-fidelity pin-resolved details serves an important role in multi-physics reactor applications. However, the limitation of the current CPU has become a sore point. In order to maintain the high accuracy and
ZOU Hang;LIANG Liang;ZHANG Qian;SONG Peitao;ZHAO Qiang
doaj  

Cluster observations of ELF/VLF signals generated by modulated heating of the lower ionosphere with the HAARP HF transmitter [PDF]

Annales Geophysicae, 2004
It is now well known that amplitude modulated HF transmissions into the ionosphere can be used to generate ELF/VLF signals using the so-called "electrojet antenna".
M. Platino, U. S. Inan, T. F. Bell, J. Pickett, E. J. Kennedy, J. G. Trotignon, J. L. Rauch, P. Canu   +7 more
doaj   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source