Results 71 to 80 of about 160,396 (265)

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

Genomics and data science: an application within an umbrella

open access: yesGenome Biology, 2019
Data science allows the extraction of practical insights from large-scale data. Here, we contextualize it as an umbrella term, encompassing several disparate subdomains.
Fábio C. P. Navarro   +6 more
doaj   +1 more source

Surface Reordering During Layer‐by‐Layer Growth on SrTiO3

open access: yesAdvanced Materials, EarlyView.
Surface structures (left) derived from DFT‐constrained fitting to crystal truncation rods measured by synchrotron X‐ray scattering (right) after each monolayer of deposition during the MBE growth of SrTiO3${\rm SrTiO}_{3}$ (001). The bottom panel shows the bare substrate, the middle panel shows island formation upon deposition of a single layer of SrO,
I‐Cheng Tung   +14 more
wiley   +1 more source

Gaussian Process Modeling Coronal X-Ray Variability of Active Galactic Nuclei

open access: yesThe Astrophysical Journal
The corona is an integral component of active galactic nuclei (AGNs) that can produce the X-ray emission. However, many of its physical properties and the mechanisms powering this emission remain a mystery.
Haiyun Zhang   +3 more
doaj   +1 more source

Asteroseismology of solar-type stars with K2

open access: yes, 2015
We present the first detections by the NASA K2 Mission of oscillations in solar-type stars, using short-cadence data collected during K2 Campaign\,1 (C1). We understand the asteroseismic detection thresholds for C1-like levels of photometric performance,
Aguirre, V. Silva   +46 more
core   +3 more sources

Anomalous Spin‐Optical Helical Effect in Ti‐Based Kagome Metal

open access: yesAdvanced Materials, EarlyView.
The kagome lattice hosts diverse correlated quantum states, including elusive loop currents. We report spin‐handedness selective signals in CsTi3Bi5, termed the anomalous spin‐optical helical effect, surpassing conventional spin responses. Arising from light helicity coupled to spin‐orbital correlations, this effect provides a sensitive, indirect probe
Federico Mazzola   +34 more
wiley   +1 more source

Detection techniques for the H.E.S.S. II telescope, data modeling of gravitational lensing and emission of blazars in HE-VHE astronomy

open access: yes, 2013
This thesis presents the study of four aspects of high energy astronomy.The first part of my thesis is dedicated to an aspect of instrument development for imaging atmospheric Cherenkov telescopes, namely the Level 2 trigger system of the High Energy Stereoscopic System (H.E.S.S.).
openaire   +4 more sources

A Unique Low-mass-ratio Contact Eclipsing Binary System under the Period Cutoff

open access: yesThe Astrophysical Journal, 2023
We present a multiband photometric analysis of CRTS J163819.6+03485, the first low-mass-ratio contact binary system with a period of 0.2053321 day under the contact binary period limit.
Athanasios Papageorgiou   +7 more
doaj   +1 more source

Maximum-likelihood Regression with Systematic Errors for Astronomy and the Physical Sciences. II. Hypothesis Testing of Nested Model Components for Poisson Data

open access: yesThe Astrophysical Journal
Abstract A novel model of systematic errors for the regression of Poisson data is applied to hypothesis testing of nested model components with the introduction of a generalization of the ΔC statistic that applies in the presence of systematic errors. This paper shows that the null-hypothesis parent distribution of this ΔC
Massimiliano Bonamente   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy