Results 81 to 90 of about 10,143 (259)

Insights from the Gaussian Process Method for the Fast Radio Burst–associated X-Ray Burst of SGR 1935+2154

The Astrophysical Journal
The Gaussian process method is employed to analyze the light curves of bursts detected by Insight-HXMT, Neutron Star Interior Composition Explorer (NICER), and Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor from SGR 1935+2154 ...
Ruijing Tang, Dahai Yan, Haiyun Zhang, Qingchang Zhao, Lian Tao, Chengkui Li, Mingyu Ge, Xiaobo Li, Qianqing Yin, Ce Cai   +9 more
doaj   +1 more source

Synthesis of Core–Shell Te@Se Quantum Dots and Their Broadband Photodetector Performance in Low Concentration Electrolytes

Laser &Photonics Reviews, EarlyView.
Te@Se core–shell heterojunction quantum dots (QDs) are synthesized by a two‐step strategy via combining liquid‐phase exfoliation and epitaxial growth. As active materials in photoelectrochemical photodetectors, Te@Se QDs exhibit excellent photo‐response performance in low‐concentration electrolytes and deionized water.
Yiming Zhao, Artem V. Kuklin, Jiahui Hou, Mingqi He, Lyudmila V. Begunovich, Han Zhang, Ying Li, Hans Ågren, Lingfeng Gao   +8 more
wiley   +1 more source

Site‐Engineered Corundum‐Structured Aesthetic Composites for Alleviating Heat Accumulation to Mitigate Urban Heat Islands

Small, EarlyView.
ABSTRACT Urban heat islands have become a global issue, as they severely impact several key factors, including elevated energy consumption, increased air pollution and greenhouse gas emissions, compromised human health and comfort, and reduced water quality.
G.P. Darshan, Akshay Arjun, Subhendu Mishra, Abhishek Kumar Singh, Alberto Vomiero, Elisa Moretti   +5 more
wiley   +1 more source

Multiepoch Observations of the Nearby Spiral Galaxy NGC 3938 with the Chandra X-Ray Observatory

The Astronomical Journal
We present an analysis of two epochs of ACIS observations of the SA(s)c spiral galaxy NGC 3938 with the Chandra X-ray Observatory. The total exposure time of the observations was 95 ks, with a limiting unabsorbed luminosity of ≈10 ^38 erg s ^−1 assuming ...
Siddhi Raut, Eric M. Schlegel, Thomas G. Pannuti, Brannon W. Jones, Jacobo Matallana   +4 more
doaj   +1 more source

High‐Resolution Microlens‐Assisted Tunable n‐Type Optical Doping in Monolayer MoS2

Small, EarlyView.
The laser‐assisted microlens array processing (LAMP) technique enables sub‐diffraction, localized n‐type optical doping of monolayer MoS2 by utilizing self‐assembled microspheres as microlenses. Controlled sulfur vacancy formation under low‐power laser irradiation allows precise tuning of the carrier concentration.
Junil Kim, Kyungjune Cho, Jieun Lee, Takhee Lee, Seungjun Chung, Hyuk‐Jun Kwon   +5 more
wiley   +1 more source

Single‐Particle Insights Into the Electronic Structure and Enhanced Stability of CsPbBr3/FAPbBr3 Core/Crown Nanoplatelets at the Nanometer Scale

Small, EarlyView.
Single‐particle‐level investigation using scanning tunneling spectroscopy reveals electronic structure and type‐I band alignment of individual CsPbBr3@FAPbBr3 core‐crown nanoplatelet. Crown passivation suppresses deep trap states by 47% and markedly improves electrical stability under repeated bias sweeps.
Shaocheng Shen, Anuraj S. Kshirsagar, John Michael Lane, Chenguang Zhang, Haixin Zhang, Kedar Hippalgaonkar, Neeraj Rai, Mahesh K. Gangishetty, Kun Wang   +8 more
wiley   +1 more source

A Study of Spectral Variability Between Flaring and Nonflaring State in M74 X-1

The Astrophysical Journal
We conducted an extensive long-term spectral and timing study of the ultraluminous X-ray (ULX) source M74 X-1, using data taken between 2001 and 2021 by Chandra and XMM-Newton X-ray observatories.
Aman Upadhyay, Tanuman Ghosh, Vikram Rana   +2 more
doaj   +1 more source

HRTEM Imaging and Mechanistic Insights Into Carbon Nanotube Nucleation and Growth on Fe Nanocatalysts in a Thermal Plasma

Small Methods, EarlyView.
Carbon nanotubes (CNTs) were successfully debundled from Tuball soots produced using iron nanocatalysts in arc discharge thermal plasma and distributed on monolayer graphene for HRTEM imaging for mechanistic insights into CNT synthesis. Zigzag single‐wall or double‐wall CNTs were identified.
Hengfei Gu, Stanislav Musikhin, Guangming Cheng, Nan Yao, Yevgeny Raitses, Bruce E. Koel   +5 more
wiley   +1 more source

Czech Contribution to LOFT

Acta Polytechnica, 2013
We describe the current status of the Czech contribution to the ESA LOFT space mission, with emphasis on technical aspects. Expertise available in the Czech Republic will play a positive role in the LOFT project and related developments.
René Hudec, Vojtěch Petráček, Dalimil Šnita   +2 more
doaj  

Quantitative micro‐XRF combined with X‐ray imaging reveals correlations between Zn concentration and dentin tubule porosity across entire teeth

VIEW, EarlyView.
The combination of calibrated micro‐CT and quantitative micro‐XRF measurement facilitates the correlation of density and composition in the 3D macro‐structure of teeth. Zn concentration in dentin increases by a factor of 10 toward the pulp. Incidentally, the overall density decreases, showing an association between Zn and the dentin tissue porosity ...
Ioanna Mantouvalou, Leona Johanna Bauer, Vinh‐Binh Truong, Yannick Wagener, Frank Förste, Oleksandra Marushchenko, Stephan Werner, Franco Lizzi, Frank Wieder, Timo Wolff, Birgit Kanngießer, Paul Zaslansky   +11 more
wiley   +1 more source