Article
Multidisciplinary Sciences
Julia Dshemuchadse, Pablo F. Damasceno, Carolyn L. Phillips, Michael Engel, Sharon C. Glotzer
Summary: Researchers systematically crystallized one-component systems of particles interacting with isotropic multiwell pair potentials without the constraints of chemistry, discovering a multitude of new crystal structures that expand our understanding of what crystal structures can look like.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Materials Science, Multidisciplinary
F. F. Murzakhanov, B. Yavkin, G. Mamin, S. B. Orlinskii, H. J. von Bardeleben, T. Biktagirov, U. Gerstmann, V. A. Soltamov
Summary: The ground state properties and nuclear magnetic resonance transitions of the negatively charged NV- defect in 4H-SiC were studied using high-frequency pulsed electron paramagnetic resonance and electron-nuclear double resonance techniques. The results confirmed the predicted sign of the zero-field splitting and provided insight into the hyperfine interaction of the defect electron spin with nuclear spins. The measurements also demonstrated the existence and characteristics of the nearest-neighbor NcVsj pair in the material.
Article
Chemistry, Analytical
Pouya Partovi-Azar, Daniel Sebastiani
Summary: A new method proposed to increase the efficiency of proton transfer energy calculations using the T-1 state with optimized effective potentials is shown to reproduce reference proton dissociation curves obtained at S-1 states with reasonable accuracy. The method not only benefits theoretical studies on excited state proton transfer, but is also believed to be useful for studying other excited state photochemical reactions.
Article
Materials Science, Multidisciplinary
Ayoub Aouina, Matteo Gatti, Siyuan Chen, Shiwei Zhang, Lucia Reining
Summary: In this work, accurate exchange-correlation potentials for Si and NaCl are determined based on the ground-state densities obtained from auxiliary field quantum Monte Carlo calculations. The study shows that these potentials can be rationalized as an ensemble of a few local functions of the density, characterized by the gradient of the density and the local kinetic energy density. By using these accurate potentials, the KS band structure can be obtained with high accuracy. The findings also confirm the stability of the KS system and question the meaning of details of the potentials.
Article
Engineering, Electrical & Electronic
Zhangjie Peng, Tianshu Li, Cunhua Pan, Hong Ren, Wei Xu, Marco Di Renzo
Summary: This paper investigates a reconfigurable intelligent surface (RIS) aided multi-pair communication system and proposes a genetic algorithm (GA) for solving the rate maximization problem. The results show that using three quantization bits in the continuous phase shifts (CPSs) setup can achieve a large portion of the achievable rate.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2021)
Article
Optics
J. -l. Godet, M. S. A. El-Kader
Summary: This article analyzes the isotropic and anisotropic binary collision-induced light scattering spectra of gaseous krypton obtained at room temperature, using different interatomic potentials, trace and anisotropy models, and interaction-induced polarizability. By fitting the potentials to thermophysical and transport properties and comparing with experimental results, the most accurate potentials for this system to date are obtained.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2022)
Article
Physics, Multidisciplinary
Chenglong Sun, Kaifeng Cui, Sijia Chao, Yuanfei Wei, Jinbo Yuan, Jian Cao, Hualin Shu, Xueren Huang
Summary: We report on the electromagnetically induced transparency cooling of Ca-40(+) to sympathetically cool the three-dimensional secular modes of motion in a Ca-40(+)-Al-27(+) two-ion pair near ground state, achieving simultaneous ground state cooling across all radial and axial modes in a broad frequency space. The cooling time is less than 1 ms. This study is crucial for reducing uncertainties in the time dilation shift and uptime ratio in Al-27(+) optical clocks, and for enabling high-fidelity quantum simulations and quantum information processing with trapped ions.
Article
Computer Science, Hardware & Architecture
Airton F. G. Junior, Claisso P. Azzolin, Claudio A. R. Castillo, Vitor G. A. Carneiro
Summary: This paper analyzes the availability of a free-space optical (FSO) communication link between a maritime platform and a land base. The impact of laser beam misalignment caused by the vessel's six oscillatory motions in a seaway is considered. The hydrodynamic system is modeled using a ship's response amplitude operator (RAO) under typical sea-state conditions. Finally, the link availability is calculated based on FSO losses considering a Gaussian power distribution beam.
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
(2022)
Article
Engineering, Civil
Bing Gao, Bing Bu, Wei Zhang, Xiang Li
Summary: This research proposes an intrusion detection method based on machine learning and state observer to detect attacks in the train-ground communication system. The method includes two layers, one for detecting and identifying wireless network attacks, and the other for detecting abnormal physical states of train operation.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Engineering, Civil
Jiajun Duan, Xiong Wei, Jiahua Zhou, Tingting Wang, Xuechao Ge, Zhi Wang
Summary: This paper proposes a method to compensate for the communication imperfection of WT2GCN by accurately predicting its measurements using prediction techniques and attention mechanism. The effectiveness of the method is demonstrated through real-time testing.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Engineering, Mechanical
Alireza Moazezi Mehretehran, Shervin Maleki
Summary: This study investigates the buckling behavior of different types of steel silos under seismic actions, revealing two different buckling modes under earthquake loading. Squat and intermediate slender silos buckle elastically, while slender silo exhibits an elastic-plastic elephant's foot buckling mode. The research also concludes that including the vertical component of earthquake ground motion has marginal effects on the seismic response of silos.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Mathematics, Applied
Francisco S. B. Albuquerque, Marcelo C. Ferreira, Uberlandio B. Severo
Summary: This paper studies a class of nonlinear equations and establishes the existence of ground state solutions using variational methods under certain conditions. The Trudinger-Moser inequality for the given setting is crucial for obtaining the main results.
MILAN JOURNAL OF MATHEMATICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Przemyslaw Bieganski, Eduard Kovalski, Noel Israel, Evgenia Dmitrieva, Damian Trzybinski, Krzysztof Wozniak, Valerije Vrcek, Martina Godel, Chiara Riganti, Joanna Kopecka, Heinrich Lang, Konrad Kowalski
Summary: In this study, the synthesis and anticancer activity of six 1,2,3-triazole ferrocenyl compounds were discussed. The compounds showed high activity against human non-small-cell lung cancer cells, surpassing the activity of reference anticancer drugs. Reactive oxygen species were found to play a major role in the antiproliferative activity of these compounds.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Biomedical
E. Sayilgan, Y. K. Yuce, Y. Isler
Summary: Steady-state visually evoked potentials (SSVEPs) have wide applications in brain-computer interfaces. Wavelet transform has been recognized as an effective feature extraction method. However, the choice of appropriate mother wavelet function remains a challenge. This study experimented with a two-command system and identified the optimal frequency pairs and mother wavelet function.
Article
Automation & Control Systems
Joseph Henry Anajemba, Celestine Iwendi, Imran Razzak, James Adu Ansere, Izuchukwu Michael Okpalaoguchi
Summary: This article focuses on the privacy protection issues in the industrial Internet of Things (IIoT) and proposes a solution for eavesdropping attacks in IIoT systems. By deriving the asymptotic regularized prompt privacy rate and designing optimal jamming parameters, high privacy precision can be achieved.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2022)