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Experimental apparatus and measurement technique are described for precision absorption measurements in sodium - noble gas mixtures. The absolute absorption coefficient is measured in the wavelength range from 425 nm to 760 nm with 2%…

Atomic Physics · Physics 2009-11-06 M. Shurgalin , W. H. Parkinson , K. Yoshino , C. Schoene , W. P. Lapatovich

We consider the formation of solar infrared (2-6 micron) rovibrational bands of carbon monoxide (CO) in CO5BOLD 3D convection models, with the aim to refine abundances of the heavy isotopes of carbon (13C) and oxygen (18O,17O), to compare…

Solar and Stellar Astrophysics · Physics 2015-06-12 Thomas R. Ayres , J. R. Lyons , H. -G. Ludwig , E. Caffau , S. Wedemeyer-Böhm

Correlated photon-pair sources are key components for quantum computing, networking, and sensing applications. Integrated photonics has enabled chip-scale sources using nonlinear processes, producing high-rate entanglement with sub-100…

Remote sensing hyperspectral and more generally spectral instruments are common tools to decipher surface features in Earth and Planetary science. While linear mixture is the most common approximation for compounds detection (mineral,…

Earth and Planetary Astrophysics · Physics 2023-05-03 Frédéric Schmidt

A measurement of the absorption of neutrinos with energies in excess of 10 TeV when traversing the Earth is capable of revealing its density distribution. Unfortunately, the existence of beams with sufficient luminosity for the task has…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. C. Gonzalez-Garcia , Francis Halzen , Michele Maltoni , Hiroyuki K. M. Tanaka

Measurements of ions in atmospheric air are used to investigate atmospheric electricity and particulate pollution. Commonly studied ion parameters are (1) air conductivity, related to the total ion number concentration, and (2) the ion…

Instrumentation and Detectors · Physics 2007-05-23 K. L. Aplin

A decade ago, an electron-attachment process called interatomic Coulombic electron capture has been predicted to be possible through energy transfer to a nearby neighbor. It has been estimated to be competitive with environment-independent…

Chemical Physics · Physics 2023-06-22 Axel Molle , Oleg Zatsarinny , Thomas Jagau , Alain Dubois , Nicolas Sisourat

The paper discusses some 3D simulations to compute the ionizing radiation dose during laser-plasma experiments leading to the generation of accelerated protons and electrons. Also, we suggest a new method to increase the measurement…

Instrumentation and Detectors · Physics 2019-10-02 M. Ganciu , A. Chirosca , A. Groza , E. Stancu , O. Stoican , D. B. Dreghici , B. Butoi , C. Ticos , B. Mihalcea , B. Cramariuc

Charged particles are continually generated in atmospheric air, and the interaction between natural ionisation and atmospheric particles is complicated. It is of some climatic importance to establish if ions are implicated in particle…

Atmospheric and Oceanic Physics · Physics 2012-09-21 KL Aplin , RG Harrison

Conservation agriculture features a soil surface covered with crop residues, which brings benefits of improving soil health and saving water. However, one significant challenge in conservation agriculture lies in precisely controlling the…

Image and Video Processing · Electrical Eng. & Systems 2025-11-04 Baochao Wang , Xingyu Zhang , Qingtao Zong , Alim Pulatov , Shuqi Shang , Dongwei Wang

Interstellar objects provide a unique opportunity to further our understanding of the planetary formation process by studying in detail material formed around another star. Their ices contain precious clues about the environment and…

An important yet challenging aspect of atomistic materials modeling is reconciling experimental and computational results. Conventional approaches involve generating numerous configurations through molecular dynamics or Monte Carlo…

Materials Science · Physics 2024-12-23 Tigany Zarrouk , Rina Ibragimova , Albert P. Bartók , Miguel A. Caro

Photoionization of neutral atomic sulfur in the ground and metastable states was studied experimentally at a photon energy resolution of 44 meV FWHM. Relative cross section measurements were recorded by using tunable vacuum ultraviolet…

Earth and Planetary Astrophysics · Physics 2015-06-23 Mathias Barthel , Roman Flesch , Eckart Rühl , Brendan M. McLaughlin

Atomic-scale mapping of the chemical elements in materials is now possible using aberration-corrected electron microscopes but delocalization and multiple scattering can confound image interpretation. Here we report atomic-resolution…

Materials Science · Physics 2011-10-25 Huolin L. Xin , Christian Dwyer , David A. Muller

Atomic-resolution imaging with scanning transmission electron microscopy is a powerful tool for characterizing the nanoscale structure of materials, in particular features such as defects, local strains, and symmetry-breaking distortions.…

Data from NASA's Orbiting Carbon Observatory-2 (OCO-2) satellite is essential to many carbon management strategies. A retrieval algorithm is used to estimate CO2 concentration using the radiance data measured by OCO-2. However, due to…

Applications · Statistics 2021-01-26 Xinyue Chang , Zhengyuan Zhu , Xiongtao Dai , Jonathan Hobbs

Levels of trace radiopurity in active detector materials is a subject of major concern in low-background experiments. Among the radio-isotopes, $\k40$ is one of the most abundant and yet whose signatures are difficult to reject. Procedures…

Nuclear Experiment · Physics 2008-11-26 K. J. Dong

We report an experimental assessment of surface kinetic roughening properties that are anisotropic in space. Working for two specific instances of silicon surfaces irradiated by ion-beam sputtering under diverse conditions (with and without…

Materials Science · Physics 2015-06-11 Edoardo Vivo , Matteo Nicoli , Martin Engler , Thomas Michely , Luis Vázquez , Rodolfo Cuerno

Estimation of the soil organic carbon content is of utmost importance in understanding the chemical, physical, and biological functions of the soil. This study proposes machine learning algorithms of support vector machines, artificial…

Machine Learning · Computer Science 2020-07-27 Mostafa Emadi , Ruhollah Taghizadeh-Mehrjardi , Ali Cherati , Majid Danesh , Amir Mosavi , Thomas Scholten

Ambient fine particulate matter less than 2.5 $\mu$m in aerodynamic diameter (PM$_{2.5}$) has been linked to various adverse health outcomes and has, therefore, gained interest in public health. However, the sparsity of air quality monitors…

Applications · Statistics 2018-02-12 Nancy Murray , Howard H. Chang , Heather Holmes , Yang Liu