bluuebunny/crossref_metadata_2025_split huggingface dataset:
Layer-resolved electronic behavior in a Kondo lattice system, CeAgAs2
Authors: Datta Sawani , Prakash Pandeya Ram , Bikash Dey Arka , Gloskovskii A , Schlueter C , Peixoto T R F , Singh Ankita , Thamizhavel A , Maiti Kalobaran 
Published: March 2023

Abstract
We investigate the electronic structure of an antiferromagnetic Kondo lattice system CeAgAs2 employing hard x-ray photoemission spectroscopy. CeAgAs2, an orthorhombic variant of HfCuSi2 structure, exhibits antiferromagnetic ground state, Kondo like resistivity upturn and compensation of magnetic moments at low temperatures. The photoemission spectra obtained at different photon energies suggest termination of the cleaved surface at cis-trans-As layers. The depth-resolved data show significant surface-bulk differences in the As and Ce core level spectra. The As 2p bulk spectrum shows distinct two peaks corresponding to two different As layers. The peak at higher binding energy correspond to cis-trans-As layers and is weakly hybridized with the adjacent Ce layers. The As layers between Ce and Ag-layers possess close to trivalent configuration due to strong hybridization with the neighboring atoms and the corresponding feature appear at lower binding energy. Ce 3d core level spectra show multiple features reflecting strong Ce-As hybridization and strong correlation. Intense f
0 peak is observed in the surface spectrum while it is insignificant in the bulk. In addition, we observe a features at binding energy lower than the well-screened feature indicating the presence of additional interactions. This feature becomes more intense in the bulk spectra suggesting it to be a bulk property. Increase in temperature leads to a spectral weight transfer to higher binding energies in the core level spectra and a depletion of spectral intensity at the Fermi level as expected in a Kondo material. These results reveal interesting surface-bulk differences, complex interplay of intra- and inter-layer covalency, and electron correlation in the electronic structure of this novel Kondo lattice system.
Radioactivity of residues from waste incineration facilities in Finland
Authors: Kallio Antti , Virtanen Sinikka , Leikoski Niina , Iloniemi Eeva , Kämäräinen Meerit , Hildén Timo , Mattila Aleksi 
Published: March 2023

Abstract
Waste incineration in Europe has been increasing in the past few decades as there is a need to reduce the burden on landfills and their associated environmental concerns. While incineration reduces the volume of the waste, the volume of slag and ash is still substantial. To find out potential radiation risks that incineration residues could set to workers or the public, the levels of radioactive elements in these residues were investigated from nine waste incineration plants in Finland. Natural and artificial radionuclides were detected in the residues, but in general the activity concentrations were low. This study shows that the level of Cs-137 in the fly ash from municipal waste incineration follows the pattern of 1986 fallout zones in Finland, although the levels are significantly lower than in ash from bioenergy production from the same areas. Am-241 was also detected in many samples, although the activity concentrations were very low. Based on the findings in this study, the typical ash and slag residues from municipal waste incineration do not need radiation protection measures for workers or the public even in regions that received up to 80 kBq m−2 of Cs-137 fallout in 1986. The further use of these residues need not be restricted due to radioactivity. Hazardous waste incineration residues and other special cases need to be considered separately, depending on the original waste composition.
Selective LASER melting part quality prediction and energy consumption optimization
Authors: Sabuj MD Rokibujjaman , Afshari Sajad Saraygord , Liang Xihui 
Published: March 2023

Abstract
Selective LASER Melting (SLM) popularity is increasing because of its ability to quickly produce components with acceptable quality. The SLM process parameters, such as LASER power and scan speed, play a significant role in assuring the quality of customized SLM products. Therefore, the process parameters must be tuned appropriately to achieve high-quality customized products. Most existing methods for adjusting the SLM’s parameters use multiple inputs and one or two outputs to develop a model for achieving their desired quality. However, the number of the model’s input and output parameters to be considered can be increased to achieve a more comprehensive model. Furthermore, energy consumption is also a factor that should be considered when adjusting input parameters. This paper presents a multi-inputs-multi-outputs (MIMO) artificial neural network model to predict the SLM product qualities. We also try to combine training data from different sources to achieve a more general model that can be used in real applications by industries. The model inputs are LASER power, scan speed, overlap rate, and hatch distance. Moreover, four critical product quality measures: relative density, hardness, tensile strength, and porosity, are used as the model’s outputs. After finding a proper model, an energy optimization method is developed using the genetic algorithm in this paper. The objective of the optimization is to minimize the energy consumption of SLM manufacturing with a less compromised output quality. The results of this study can be used in the industry to decrease energy consumption while maintaining the required quality.
Directional vapor transported and water-proof nanofibrous membranes for liquid desiccant dehumidification systems
Authors: Yao Ye , Su Yazhou , Li Wenhua , Shi Lingxiang , Sun Xiaoxia 
Published: March 2023

Abstract
The membrane-based liquid desiccant dehumidification system is a newly developed method in the field of air dehumidification. In this study, double-layer nanofibrous membranes (DLNMs) with directional vapor transport and water repellency for liquid dehumidification were fabricated by a simple electrospinning process. Specifically, the combination of thermoplastic polyurethane nanofibrous membrane and polyvinylidene fluoride (PVDF) nanofibrous membrane forms a cone-like structure in DLNMs, resulting in directional vapor transportation. The nanoporous structure and rough surface of PVDF nanofibrous membrane provide waterproof performance for DLNMs. Compare with the commercial membranes, the proposed DLNMs have a significantly higher water vapor permeability coefficient, which is as high as 539.67 g·μm m−2·24 h·Pa. This study not only provides a new route to construct a directional vapor transport and waterproof membrane, but also demonstrates the huge application prospect of the nanofibrous membrane formed by electrospinning in the field of solution dehumidification.
On the link between mechanics and thermal properties: mechanothermics
Authors: Collin Eddy , Golokolenov Ilya , Maillet Olivier , Saminadayar Laurent , Bourgeois Olivier 
Published: March 2023

Abstract
We report on the theoretical derivation of macroscopic thermal properties (specific heat, thermal conductivity) of an electrically insulating rod connected to two reservoirs, from the linear superposition of its mechanical mode Brownian motions. The calculation is performed for a weak thermal gradient, in the classical limit (high temperature). The development is kept basic as far as geometry and experimental conditions are concerned, enabling an almost fully analytic treatment. In the modeling, each of the modes is subject to a specific Langevin force, which enables to produce the required temperature profile along the rod. The theory is predictive: the temperature gradient (and therefore energy transport) is linked to motion amplitude cross-correlations between nearby mechanical modes. This arises because energy transport is actually mediated by mixing between the modal waves, and not by the modes themselves. This result can be tested on experiments, and shall extend the concepts underlying equipartition and fluctuation–dissipation theorems. The theory links intimately the macroscopic size of the clamping region where the mixing occurs to the microscopic lengthscale of the problem at hand: the phonon mean-free-path. This clamping region, which is key, has received recently a renewed attention in the field of nanomechanics with topical works on ‘phonon shields’ and ‘soft clamping’. We believe that our work should impact the domain of thermal transport in nanostructures, with future developments of the theory toward the quantum regime.
An accordion superlattice for controlling atom separation in optical potentials
Authors: Wili Simon , Esslinger Tilman , Viebahn Konrad 
Published: March 2023

Abstract
We propose a method for separating trapped atoms in optical lattices by large distances. The key idea is the cyclic transfer of atoms between two lattices of variable spacing, known as accordion lattices, each covering at least a factor of two in lattice spacing. By coherently loading atoms between the two superimposed potentials, we can reach, in principle, arbitrarily large atom separations, while requiring only a relatively small numerical aperture. Numerical simulations of our ‘accordion superlattice’ show that the atoms remain localized to one lattice site throughout the separation process, even for moderate lattice depths. In a proof-of-principle experiment, we demonstrate the optical fields required for the accordion superlattice using acousto-optic deflectors. The method can be applied to neutral-atom quantum computing with optical tweezers, as well as quantum simulation of low-entropy many-body states. For instance, a unit-filling atomic Mott insulator can be coherently expanded by a factor of ten in order to load an optical tweezer array with very high filling. In turn, sorted tweezer arrays can be compressed to form high-density states of ultracold atoms in optical lattices. The method can also be applied to biological systems where dynamical separation of particles is required.
Study of the structure of MgSiO3 system under compression by using ring statistics and voronoi analysis
Authors: Nguyen Hoang Anh , Van Hong Nguyen 
Published: March 2023

Abstract
The structural change of MgSiO3 liquid under compression is still one of the most interesting challenges. In this paper, we perform the molecular dynamics simulation to study the structural change of MgSiO3 liquid from 0 to 200 GPa. Ring statistics are analyzed to clarify the intermediate-range order, to explain why the second peak of Si–Si PRDFs splits into 2 subpeaks at 200 GPa, and to show the heterogeneity of MgSiO3. Large rings which form at high pressures would capture the oxygen atoms. Oxygen atoms which have negative charge attract Mg2+ ions, creating magnesium-rich regions. Besides, the Voronoi and Q
n
distribution changes on the ring with pressure are clarified to give more information about the rings.
Frequency regulation of Terahertz quantum cascade lasers by changing barrier thickness
Authors: Luo Jiawen , Chen Fengwei , Jiang Tao , Zhan Zhiqiang , Wang Xuemin , Yang Qi , Zou Ruijiao , Li Jia , Zeng Yong , Wu Weidong , Xu Lixin 
Published: March 2023

Abstract
Terahertz (THz) sources with different frequency are important to gas detection. THz quantum cascade lasers (QCLs) based on resonant phonon structure with different frequency emission by changing transition barrier thickness are hereby presented. By theoretically calculation, a 0.19 nm thickening change of transition barrier would cause an approximately 350 GHz regulation range in frequency, and is then confirmed by experimental results. The corresponding far field beam profile keeps almost unchanged. With the increase of the transition barrier thickness, the output power only decreases by 15%, but the threshold current density decreases 24%. This simple method contributes to a satisfactory gas-detection approach with a stability of relative high output power.
A theoretical study of the effects of electric field, hydrostatic pressure, and temperature on photoionization cross-section of a donor impurity in (Al, Ga)N/AlN double triangular quantum wells
Authors: Belaid Walid , El Ghazi Haddou , Zaki Shrouk E , Basyooni Mohamed A , Tihtih Mohammed , Ennadir Redouane , Kılıç Hamdi Şükür , Zorkani Izeddine , Jorio Anouar 
Published: March 2023

Abstract
The aim of this research is to analyze the influence of various factors on the photo-ionization cross-section in (Al, Ga)N/AlN double triangular quantum wells. Using the finite difference method, the effects of the electric field, hydrostatic pressure, temperature, and Ga concentration were investigated within the effective mass and parabolic approximations. Our findings show that the photo-ionization cross-section (PICS) is highly dependent on all the variables under consideration. The optical spectra were blue-shifted with increasing electric field and pressure and red-shifted with increasing temperature and impurity displacement far from the center of the structure. Furthermore, it was found that changes in gallium content and impurity position can increase the PICS amplitude. A comparison of the obtained results with the existing literature as a limiting case of the reported problem is also provided, and excellent agreement is found.
Testing gravitational wave propagation with multiband detections
Authors: Baker Tessa , Barausse Enrico , Chen Anson , de Rham Claudia , Pieroni Mauro , Tasinato Gianmassimo 
Published: March 2023

Abstract
Effective field theories (EFT) of dark energy (DE) — built to parameterise the properties of DE in an agnostic manner — are severely constrained by measurements of the propagation speed of gravitational waves (GW). However, GW frequencies probed by ground-based interferometers lie around the typical strong coupling scale of the EFT, and it is likely that the effective description breaks down before even reaching that scale. We discuss how this leaves the possibility that an appropriate ultraviolet completion of DE scenarios, valid at scales beyond an EFT description, can avoid present constraints on the GW speed. Instead, additional constraints in the lower frequency LISA band would be harder to escape, since the energies involved are orders of magnitude lower. By implementing a method based on GW multiband detections, we show indeed that a single joint observation of a GW150914-like event by LISA and a terrestrial interferometer would allow one to constrain the speed of light and gravitons to match to within 10-15. Multiband GW observations can therefore firmly constrain scenarios based on the EFT of DE, in a robust and unambiguous way.
Data Combination: Interferometry and Single-dish Imaging in Radio Astronomy
Authors: Plunkett Adele , Hacar Alvaro , Moser-Fischer Lydia , Petry Dirk , Teuben Peter , Pingel Nickolas , Kunneriath Devaky , Takagi Toshinobu , Miyamoto Yusuke , Moravec Emily , Suri Sümeyye , Hess Kelley M. , Hoffman Melissa , Mason Brian 
Published: March 2023

Abstract
Modern interferometers routinely provide radio-astronomical images down to subarcsecond resolution. However, interferometers filter out spatial scales larger than those sampled by the shortest baselines, which affects the measurement of both spatial and spectral features. Complementary single-dish data are vital for recovering the true flux distribution of spatially resolved astronomical sources with such extended emission. In this work, we provide an overview of the prominent available methods to combine single-dish and interferometric observations. We test each of these methods in the framework of the CASA data analysis software package on both synthetic continuum and observed spectral data sets. We develop a set of new assessment tools that are generally applicable to all radio-astronomical cases of data combination. Applying these new assessment diagnostics, we evaluate the methods’ performance and demonstrate the significant improvement of the combined results in comparison to purely interferometric reductions. We provide combination and assessment scripts as add-on material. Our results highlight the advantage of using data combination to ensure high-quality science images of spatially resolved objects.
The Second Radio Synchrotron Background Workshop: Conference Summary and Report
Authors: Singal J. , Fornengo N. , Regis M. , Bernardi G. , Bordenave D. , Branchini E. , Cappelluti N. , Caputo A. , Carucci I. P. , Chluba J. , Cuoco A. , DiLullo C. , Fialkov A. , Hale C. , Harper S. E. , Heston S. , Holder G. , Kogut A. , Krause M. G. H. , Leahy J. P. , Mittal S. , Monsalve R. A. , Piccirilli G. , Pinetti E. , Recchia S. , Taoso M. , Todarello E. 
Published: March 2023

Abstract
We summarize the second radio synchrotron background workshop, which took place on 2022 June 15–17 in Barolo, Italy. This meeting was convened because available measurements of the diffuse radio zero level continue to suggest that it is several times higher than can be attributed to known Galactic and extragalactic sources and processes, rendering it the least well-understood electromagnetic background at present and a major outstanding question in astrophysics. The workshop agreed on the next priorities for investigations of this phenomenon, which include searching for evidence of the radio Sunyaev–Zel’dovich effect, carrying out cross-correlation analyses of radio emission with other tracers, and supporting the completion of the 310 MHz absolutely calibrated sky map project.
Automated visual inspection system for ATLAS ITk strip hybrids
Authors: Dervan P.J. 
Published: March 2023

Abstract
A method of automating the visual inspection of ATLAS upgrade strip modules is shown. The visual inspection of the hybrids is a time consuming part of the quality control during module production. A method of detecting and classifying the SMD components on the hybrids using an object detection neural network was investigated. The results show that the amount of hybrids that needed to be check by a human operator was reduced to around 10% of the batch. This hugely reduced the amount of time needed for human inspection and did find real mistakes done during the production of the hybrids.
Meaning Salience and Meaning in Life Prospectively Predict Lower Distress During the COVID-19 Pandemic
Authors: Boylan Jennifer Morozink , Vagnini Kaitlyn M , Rush Christina L , Larson Emily K , Adams Monica , Wilson Caitlyn L , Shaffer Jonathan A , Masters Kevin S 
Published: March 2023

Abstract

Background
The COVID-19 pandemic is a widespread source of stress with adverse mental health impacts. Meaning in life, both as a trait and as momentary awareness of what is personally meaningful (meaning salience), is associated with positive health outcomes and may buffer against the deleterious effects of stress.

Purpose
This project examines prospective associations between baseline meaning salience (daily, post-laboratory stressor) and meaning in life with perceived stress during COVID-19.

Methods
A community sample of healthy adults (n = 147) completed a laboratory stress protocol in 2018–2019, where perceived stress, meaning in life, and meaning salience (daily, post-stressor) were assessed. During April and July 2020 (n = 95, and 97, respectively), participants were re-contacted and reported perceived stress. General linear mixed-effects models accounting for repeated measures of stress during COVID-19 were conducted.

Results
Partial correlations holding constant baseline perceived stress showed that COVID-19 perceived stress was correlated with daily meaning salience (r = –.28), post-stressor meaning salience (r = –.20), and meaning in life (r = –.22). In mixed-effects models, daily and post-stressor meaning salience and higher meaning in life, respectively, predicted lower perceived stress during COVID-19, controlling for age, gender, and baseline perceived stress.

Conclusions
Individuals more capable of accessing meaning when exposed to laboratory stress reported lower perceived stress during a global health crisis. Despite study limitations concerning generalizability, results support meaning in life and meaning salience as important aspects of psychological functioning that may promote well-being by affecting stress appraisals and available resources for coping.
Deindustrialisation and the post-socialist mortality crisis
Authors: Scheiring Gábor , Azarova Aytalina , Irdam Darja , Doniec Katarzyna , McKee Martin , Stuckler David , King Lawrence 
Published: March 2023

Abstract
An unprecedented mortality crisis struck Eastern Europe during the 1990s, causing around seven million excess deaths. We enter the debate about the causes of this crisis by performing the first quantitative analysis of the association between deindustrialisation and mortality in Eastern Europe. We develop a theoretical framework identifying deindustrialisation as a process of social disintegration rooted in the lived experience of shock therapy. We test this theory relying on a novel multilevel dataset, fitting survival and panel models covering 52 towns and 42,800 people in 1989–95 in Hungary and 514 towns in European Russia in 1991–99. The results show that deindustrialisation was directly associated with male mortality and indirectly mediated by hazardous drinking as a stress-coping strategy. The association is not a spurious result of a legacy of dysfunctional working-class health culture aggravated by low alcohol prices during the early years of the transition. Both countries experienced deindustrialisation, but social and economic policies have offset Hungary’s more immense industrial employment loss. The results are relevant to health crises in other regions, including the deaths of despair plaguing the American Rust Belt. Policies addressing the underlying causes of stress and despair are vital to save lives during painful economic transformations.