Results 121 to 130 of about 220,311 (341)
Advanced Functional Materials, EarlyView.Carbon nanomembranes with ultra‐thin Al2O3 functionalization are less than 15 nm thin and exhibit outstanding permeation performance with a water vapor/nitrogen selectivity higher than 1 × 104, twice that of pristine CNMs, and an exceptionally high water vapor permeation rate for potential applications in air dehumidification.
Jan Biedinger +10 more
wiley +1 more source
The Astrophysical JournalA 2.1 yr periodic oscillation of the gamma-ray flux from the blazar PG 1553+113 has previously been tentatively identified in ∼7 yr of data from the Fermi Large Area Telescope.
S. Abdollahi +100 more
doaj +1 more source
Wetting of Surface Grafted Hydrophilic‐b‐Hydrophobic Block Copolymer Brushes
Advanced Functional Materials, EarlyView.The wetting properties of surface grafted diblock copolymer brushes are influenced by the thickness of the hydrophilic bottom block and the hydrophobic top block. The surface adapts in presence of water and the contact angles of the bottom block shine through. Abstract The wetting of diblock copolymer brushes by water is studied.
Benjamin Leibauer +7 more
wiley +1 more source
Likely Detection of GeV γ-Ray Emission from Pulsar Wind Nebula G32.64+0.53 with Fermi-LAT
The Astrophysical JournalIn this study, we report the likely GeV γ -ray emissions originating from the pulsar PSR J1849-0001's pulsar wind nebula (PWN) G32.64+0.53. Our analysis covers approximately 14.7 yr of data from the Fermi Large Area Telescope Pass 8.
Yifan Xiao, Keyao Wu, Jun Fang
doaj +1 more source
UniverseMore than fifty years have elapsed from the first discovery of gamma-ray bursts (GRBs) with American Vela satellites, and more than twenty-five years from the discovery with the BeppoSAX satellite of the first X-ray afterglow of a GRB.
Filippo Frontera
doaj +1 more source
Data Source Selection for Information Integration in Big Data Era [PDF]
arXiv, 2016 In Big data era, information integration often requires abundant data extracted from massive data sources. Due to a large number of data sources, data source selection plays a crucial role in information integration, since it is costly and even impossible to access all data sources.
arxiv
Optical Hydrogen Sensing Materials for Applications at Sub‐Zero Temperatures
Advanced Functional Materials, EarlyView.This study demonstrates the viability of optical hydrogen sensors at temperatures as low as −60°C. Using advanced metal hydride materials, the sensors detect hydrogen with high sensitivity, speed, and stability across a wide range of concentrations. These findings open doors for safe hydrogen detection in extreme cold, enabling applications in aviation,
Ziqing Yuan +4 more
wiley +1 more source
Ultra-high-energy Cosmic-Ray Sources Can Be Gamma-Ray Dim
The Astrophysical Journal LettersUltra-high-energy cosmic rays (UHECRs), accelerated hadrons that can exceed energies of 10 ^20 eV, are the highest-energy particles ever observed. While the sources producing UHECRs are still unknown, the Pierre Auger Observatory has detected a large ...
Angelina Partenheimer +3 more
doaj +1 more source
Multi-source Distilling Domain Adaptation [PDF]
arXiv, 2019 Deep neural networks suffer from performance decay when there is domain shift between the labeled source domain and unlabeled target domain, which motivates the research on domain adaptation (DA). Conventional DA methods usually assume that the labeled data is sampled from a single source distribution.
arxiv
Gamma-ray sources observed by COS-B
Space Science Reviews, 1983 The nature of the fine-scale structure in the gamma-ray distribution is not yet disclosed. Considerable debate is going on whether these structures which appear point-like in the data, are mainly diffuse in nature or are genuinely compact objects. Most of the uncertainty is due to the experimental limitations.
openaire +4 more sources