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74 papers · 1 filter
ALMA Reveals an Explosive Outflow Candidate in IRAS 16119--5048
Yongquan Luo, Jianjun Zhou, Tie Liu +24
We present a multiwavelength study of the massive star formation region IRAS 16119-5048 (I16119) using ALMA ATOMS Band 3 and QUARKS Band 6 observations, complemented by archival AT…
Magnetic Fields in Massive Star-forming Regions (MagMaR). IX. Radiative Torque Alignment and Disruption in NGC6334I
Vineet Rawat, Thiem Hoang, Patricio Sanhueza +18
Intense radiation from high-mass stars is expected to significantly affect dust grain alignment and evolution through RAdiative Torques (RATs). We investigate this effect in a mass…
Michell-Prager type truss structures constructed from integrable discrete power function and discrete logarithmic function
Motoki Masada, Kentaro Hayakawa, Kazuki Hayashi +3
The Michell-Prager type truss structures are constructed from the integrable discrete power and logarithmic functions. It is demonstrated that specific sublattices, subject to suit…
Nanolamellar Hybrid High-Entropy Alloys with Superior Micromechanical Properties
Shivam Dangwal, Yoji Mine, Shohei Ueki +5
Metallic materials with nanolamellar structures, such as pearlitic steels, exhibit high strength with appropriate ductility. Considering the potential ability of such nanolamellar…
Role of d-electron density of states in the quantum size effect of Pt-Ni and Pt-Pd nanoparticles
S. Kitagawa, T. Ihara, Y. Kinoshita +3
We investigated the quantum size effect (QSE) in bimetallic PtPd and PtNi nanoparticles, using Pt nuclear magnetic resonance measurements. The tempe…
Characterizing the temporal evolution of Biermann-battery-driven magnetic reconnection in laser-ablated plasmas
T. Morita, Y. Muramoto, S. Isayama +30
This paper presents an experimental investigation of magnetic reconnection between two laser-produced expanding plasmas, focusing on the quantitative evaluation of the reconnection…
Load-Path Redistribution and Damage Asymmetry in Reinforced Concrete Beams under Eccentric Drop-Weight Impact: A Coupled SPH--FEM Study
Ziqi Gao, Chi Lu, Yoshimi Sonoda +1
Reinforced concrete (RC) beams under impact are commonly assessed using central-impact configurations, but practical impacts may deviate from midspan and create unequal shear spans…
Construction of flexible wing models by combined manufacturing of additive and subtractive processes for transonic wind tunnel testing
Natsuki Tsushima, Kensuke Soneda, Kenichi Saitoh +1
This study presents a systematic manufacturing approach that combines metal additive manufacturing and subtractive machining to construct flexible wing models for transonic wind tu…
A generalized vertical coordinate transformation based on SPH(2) for efficient free surface flow simulations
Shujiro Fujioka, Kumpei Tsuji, Naoto Mitsume +1
We propose three new particle methods that improve computational efficiency by introducing a generalized Vertical Coordinate Transformation (VCT) for free surface flow problems wit…
Joint measurement of cosmic-ray muons and seismic w av es at laboratory scale
J. Matsushima, M. Kodama, M. Y. Ali +6
Current geophysical exploration methods face challenges in accurately determining gas saturation levels and elastic constants with adequate spatial resolution. Seismic wave velocit…
String Matching in (Block) Graphs: A Full Classification by Walk Length
Sebastian Angrick, Ben Bals, Paweł Gawrychowski +2
We consider directed graphs in which the nodes are labeled with strings. A walk in such a graph naturally corresponds to the concatenation of the visited nodes' labels. These graph…
Paleodetectors for neutrino signals from diverse Galactic stellar collapses
Mahiro Yamasaki, Ken'ichiro Nakazato
The detectability of neutrinos from past Galactic core collapse supernovae (SNe) is investigated in terms of nuclear recoil tracks in ancient minerals, known as paleodetectors. To…
Hit-rate capability of a silicon strip detector module for decay positron detection in the J-PARC muon /EDM experiment
Ryuto Azuma, Katsunori Awa, Shunsuke Doi +34
In the J-PARC muon /EDM experiment, a silicon strip detector will be used to detect positrons from muon decays. The detector consists of planes of detector modules arranged ra…
Magnetic fields in Massive Star-Forming Regions (MagMaR). VIII. Magnetic field overrun by gravity in GGD 27's accretion streamers
M. Fernández-López, J. A. López-Vázquez, J. M. Girart +20
Context. Accretion streamers connected to protostellar disks and/or envelopes are thought to transport material across several thousand of au. Whether the motions of the gas compri…
High-entropy perovskites, architectured by s0/d0/d10 cations, as novel electrolytes for solid oxide fuel cells
Ho Truong Nam Hai, Rishad Kunafiev, Kwati Leonard +1
Solid oxide fuel cells enable efficient conversion of hydrogen into electricity. However, the limited availability of materials for their cathode, anode, and electrolyte remains a…
A POS Tier Is the Key to Automated Annotation for Low-Resource Language Documentation: Neural Interlinear Glossing for Irabu, a Southern Ryukyuan Language
Michinori Shimoji
Discourse data are the primary empirical basis of grammar writing in field linguistics, but producing interlinearized text is notoriously expensive - on the order of one hour of wo…
Sustainable photocatalytic CO2 conversion using microalgae as a carbon-negative scavenger
Ho Truong Nam Hai, Augusto Ducati Luchessi, Makoto Arita +2
Photocatalytic CO2 conversion driven by solar energy is a highly promising approach in addressing rising atmospheric CO2 levels; however, its practical application remains limited…
From inter-filamentary gas to filaments and hubs: gas flows in the Mon R2 hub-filament system
Jihye Hwang, Doris Arzoumanian, Yoshito Shimajiri +5
Hub-filament systems (HFSs) play an important role in the formation of massive stars and star clusters. Although the velocity structures along dense filaments have been studied, th…
Machine learning via artificial neural networks coupled with density functional theory and experiments for thermodynamic optimization of high-entropy alloys for hydrogen storage at room temperature
Shivam Dangwal, Pranav Kumar, Yuji Ikeda +2
High-entropy alloys (HEAs) have received considerable attention for hydrogen storage because of their compositional flexibility; however, designing HEAs with optimal thermodynamics…
Speculating the Impacts of Mediated Social Touch Technology
Russian, Wu, Tim Moesgen +7
With growing research on haptic interfaces, Mediated Social Touch (MST) technologies offer the potential to record, synthesise, and reproduce (RSR) touch experiences across space a…
A radiative neutrino mass model with semi-annihilating boosted dark matter
Motoko Fujiwara, Takashi Toma
Boosted dark matter can provide a distinctive signature of a non-minimal dark sector. In this work, we construct a radiative neutrino mass model that allows for the production of b…
From supernovae to neutron stars: crust formation time
Yudai Suwa, Ken'ichiro Nakazato
A neutron star is born as a hot, lepton-rich protoneutron star (PNS) and cools via neutrino emission, eventually allowing heavy ions in the outer layers to crystallize into a solid…
Magnesium-graphene interphase boundaries created by high-pressure torsion enhance hydrogen storage kinetics:Mechanisms and significance of activation energy and frequency factor
Runchen Zhou, Payam Edalati, Anthony Alhayek +6
A strategy to overcome sluggish hydrogenation/dehydrogenation of magnesium is demonstrated by creating magnesium-graphene interphase boundaries via high-pressure torsion (HPT). HPT…
Freestanding GdBa2Cu3O7 Thin Films via Optimized Buffer Layer Design: Preserving Superconducting Properties
Kazumasa Iida, Kai Walter, Takafumi Hatano +5
Freestanding GdBa2Cu3O7 (GdBCO) superconducting thin films were fabricated using a water-soluble Sr3Al2O6 (SAO) sacrificial layer in combination with thermal release tape. An amorp…