Results 121 to 130 of about 9,734,716 (302)

Magnetic X-ray Reflectivity [PDF]

, 2001
The scope of the thesis is to demonstrate the feasibility to examine magnetization profiles of thin films and multilayer systems via magnetic soft and hard x-ray reflectivity.
Lott, Dieter
core   +1 more source

Synchrotron Break Frequencies of Mildly to Highly Relativistic Outflows Observed Off-axis

The Astrophysical Journal
We consider the synchrotron spectrum produced by mildly to highly relativistic collisionless shocks. Simple analytic formulae are derived for the break frequencies (peak frequency, self-absorption frequency, synchrotron, and inverse Compton cooling ...
Gilad Sadeh
doaj   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

EP240414a: A Gamma-Ray Burst Jet Weakened by an Extended Circumstellar Material

The Astrophysical Journal Letters
The recent Einstein Probe (EP) event EP240414a exhibits several unusual observational features. Its prompt and afterglow emissions place it between long gamma-ray bursts (LGRBs) and low-luminosity GRBs (LLGRBs).
Hamid Hamidani, Yuri Sato, Kazumi Kashiyama, Masaomi Tanaka, Kunihito Ioka, Shigeo S. Kimura   +5 more
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Search for the Optical Counterpart of Einstein Probe–discovered Fast X-Ray Transients from the Lulin Observatory

The Astrophysical Journal Supplement Series
The launch of the Einstein probe (EP) mission has revolutionized the detection and follow-up observations of fast X-ray transients (FXTs) by providing prompt and timely access to their precise localizations.
Amar Aryan, Ting-Wan Chen, Sheng Yang, James H. Gillanders, Albert K. H. Kong, S. J. Smartt, Heloise F. Stevance, Yi-Jung Yang, Aysha Aamer, Rahul Gupta, Lele Fan, Wei-Jie Hou, Hsiang-Yao Hsiao, Amit Kumar, Cheng-Han Lai, Meng-Han Lee, Yu-Hsing Lee, Hung-Chin Lin, Chi-Sheng Lin, Chow-Choong Ngeow, Matt Nicholl, Yen-Chen Pan, Shashi Bhushan Pandey, Aiswarya Sankar.K, Shubham Srivastav, Guanghui Sun, Ze-Ning Wang   +26 more
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

EXTraS: Exploring the X-ray Transient and variable Sky

, 2017
The EXTraS project extracted all temporal domain information buried in the whole database collected by the EPIC cameras onboard the XMM-Newton mission. This included a search and characterisation of variability, both periodic and aperiodic, in hundreds ...
R Salvaterra, M G Watson, A Tiengo, D D'Agostino, A De Luca, J Wilms, F Haberl   +6 more
core  

Atmospheric Cerenkov astronomy of cataclysmic variables & other potential gamma ray sources [PDF]

, 1993
Recent developments in the application of the atmospheric Cerenkov technique to 7-ray astronomy are reviewed here. These include new methods of signal to noise enhancement and the increasing diversity of stellar systems positively identified as Very High
Bradbury, S.M, Bradbury, Stella Marie
core  

New Evidence for Extragalactic Einstein Probe Transients Associated with Long Gamma-Ray Bursts

The Astrophysical Journal Letters
The origin of extragalactic fast X-ray transients (EFXTs) remains a fundamental open question in high-energy astrophysics. The Einstein Probe (EP) mission provides a transformative opportunity to investigate their nature.
Qin-Mei Li, Qi-Bin Sun, Sheng-Bang Qian, Fu-Xing Li   +3 more
doaj   +1 more source