Results 71 to 80 of about 60,044 (291)

isotopic abundance

open access: yes, 2014
Citation: 'isotopic abundance' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I03332 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

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

The Impact of Initial Composition on Massive Star Evolution and Nucleosynthesis

open access: yesThe Astrophysical Journal
We study the sensitivity of presupernova evolution and supernova nucleosynthesis yields of massive stars to variations of the initial composition. We use the solar abundances from Lodders, and compute two different sets of initial stellar compositions ...
Christopher West   +4 more
doaj   +1 more source

Nucleosynthesis of light element isotopes in evolved stars experiencing extended mixing

open access: yes, 2009
We present computations of nucleosynthesis in red giants and asymptotic giant branch stars of Population I experiencing extended mixing. The assumed physical cause for mass transport is the buoyancy of magnetized structures, according to recent ...
Amari   +20 more
core   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

open access: yesAdvanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Deuterated Water Ice on the Satellites of Saturn

open access: yesThe Planetary Science Journal
The deuterium-to-hydrogen ratio in water ice in a planetary body carries important information on the history of water processing and delivery in the protostellar nebula.
Michael E. Brown   +3 more
doaj   +1 more source

Atomic and Molecular Opacities for Brown Dwarf and Giant Planet Atmospheres [PDF]

open access: yes, 2006
We present a comprehensive description of the theory and practice of opacity calculations from the infrared to the ultraviolet needed to generate models of the atmospheres of brown dwarfs and extrasolar giant planets.
A. Burrows   +26 more
core   +3 more sources

Abundances of Meteoric Lead Isotopes [PDF]

open access: yesNature, 1957
IN a recent publication Patterson1 shows that the measured isotopic abundances of leads from five different meteorites and recent terrestrial ocean sediments are simply related. From this fact, following a series of convincing arguments, he deduces that all these leads have developed from a single primeval lead by the addition of radiogenic lead-206 ...
openaire   +1 more source

Magnesium Isotopic Abundance Ratios in Cool Stars [PDF]

open access: yesThe Astrophysical Journal, 2003
From high resolution spectra of 61 cool dwarfs and giants, Mg isotopic abundance ratios 24Mg:25Mg:26Mg are derived from spectral synthesis of the MgH A-X lines near 5140A. Our sample spans the range -2.5 < [Fe/H] < 0.1, including the first measurements of Mg isotope ratios in stars with metallicities below [Fe/H]=-2.0.
Yong, David, Lambert, D.L., Ivans, Inese
openaire   +3 more sources

Efficacy and Safety Assessment of 5‐Fluorouracil, Irinotecan and Oxaliplatin‐Loaded Implants in Mouse and Pig Models for Pancreatic Cancer Therapy

open access: yesAdvanced Materials, EarlyView.
A novel FIRINOX‐loaded implant demonstrates controlled drug release, and potent therapeutic efficacy in pancreatic ductal adenocarcinoma mouse models with safety confirmed in a large‐animal pre‐clinical model. This innovative drug delivery platform offers a promising new treatment approach for non‐resectable, treatment‐resistant pancreatic cancer ...
Samantha J. Wade   +19 more
wiley   +1 more source

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