Article
Astronomy & Astrophysics
F. D. Priestley, I De Looze, M. J. Barlow
Summary: In the diffuse interstellar medium, small grains grow by efficiently accreting positively charged ions until they become positively charged and growth is halted. Gas-phase depletions are significantly overestimated when assuming a constant grain size distribution under diffuse ISM conditions.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Astronomy & Astrophysics
Haoyu Fan, Madison Schwartz, Amin Farhang, Nick L. J. Cox, Pascale Ehrenfreund, Ana Monreal-Ibero, Bernard H. Foing, Farid Salama, Klay Kulik, Heather MacIsaac, Jacco Th van Loon, Jan Cami
Summary: More than 500 diffuse interstellar bands (DIBs) have been observed and studied to reveal the nature of their carriers. Researchers have found anticorrelated DIB pairs and redefined DIB families using clustering algorithms. They also discovered a continuous sequence of DIBs and identified at least two factors influencing the dissimilarities between them.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Xiuming Chen, Qingying Qiu, Peien Feng
Summary: This paper discusses the selection of symmetry schemes under different requirement conditions based on association rules obtained through data mining, providing guidance for mechanical structure design.
Article
Multidisciplinary Sciences
Qingying Qiu, Xiuming Chen, Chao Yang, Peien Feng
Summary: Symmetry is a common property in mechanical structures, which can improve the performance and function of mechanical products. By dividing symmetry into different types based on the type and position of symmetry elements, a clearer understanding of the effects and design rules of symmetry is obtained. Through the comprehensive application of symmetry knowledge, more innovative design solutions can be proposed.
Article
Multidisciplinary Sciences
Mahmoud E. Khani, Omar B. Osman, M. Hassan Arbab
Summary: A novel technique based on wavelet multiresolution analysis and bimodality coefficient spectrum is demonstrated for diffuse terahertz spectroscopy of heterogeneous samples through turbid media. This method allows for broadband material characterization at high detection angles with an accuracy exceeding 95%. The proposed technique is versatile and can be expanded to other broadband spectroscopic modalities without prior information on sample materials or scattering medium characteristics.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Yuntao He, Yongjun Liu, Chang Liu, Duan Li
Summary: This paper establishes a Monte Carlo model to study the laser transmission characteristics in complex seawater. The influence of suspended matter on underwater laser transmission is analyzed, and the relationships between transmission depth, initial photon number, and concentrations are established and verified. The experiments confirm the accuracy of the model and relationships. The proposed method is effective in simulating laser propagation in seawater and has valuable applications in studying the attenuation of laser transmission.
Article
Astronomy & Astrophysics
Zainab Awad, Serena Viti
Summary: Observations of diffuse clouds have found high abundances of simple hydrocarbons, challenging conventional gas-phase chemical models. Recent experimental results suggest that photodecomposition of hydrogenated amorphous carbon (HAC) and solid hexane can release a range of hydrocarbons into the gas phase. This study explores the feasibility of a 'top-down' or degradation mechanism for the formation of simple hydrocarbons in diffuse clouds.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Hongchen Chu, Xiang Xiong, Ya-Jun Gao, Jie Luo, Hao Jing, Cheng-Yao Li, Ruwen Peng, Mu Wang, Yun Lai
Summary: By introducing the concept of random-flip metasurfaces made of randomly flipped components, this study combines diffuse reflection and undistorted transmission, leading to new opportunities in optical materials and display technology. This functionality is achieved by breaking the phase correlation between reflection and transmission by the metasurface.
Article
Multidisciplinary Sciences
A. C. Qu, P. Nigge, S. Link, G. Levy, M. Michiardi, P. L. Spandar, T. Matthe, M. Schneider, S. Zhdanovich, U. Starke, C. Gutierrez, A. Damascelli
Summary: Quantum materials, like graphene, are highly influenced by their environments. A recent study has shown that a small concentration of surface atoms can trigger a global Kekule density wave phase in graphene, resulting in the opening of an energy gap. This discovery highlights the unexpected sensitivity of the graphene lattice to dilute surface disorder and suggests a new approach for designing novel phases in two-dimensional materials.
Article
Physics, Multidisciplinary
Zengyi Du, Hui Li, Genda Gu, Abhay N. Pasupathy, John M. Tranquada, Kazuhiro Fujita
Summary: Traditionally, x-ray scattering has been used to detect lattice structural symmetry breaking due to charge density wave formation in cuprate pseudogap states. Spectroscopic imaging scanning tunneling microscopy has visualized short-range charge density waves. However, visualizing the local coupling of electrons to the lattice has been challenging. In this study, a novel STM-based technique was introduced to visualize local bond-length variations, revealing electron-lattice coupling in the pseudogap state and linking x-ray scattering and STM measurements.
Article
Polymer Science
Zijie Wu, Arthi Jayaraman
Summary: In this study, a machine learning-enhanced computational reverse-engineering analysis of scattering experiments (CREASE) is proposed for analyzing polymer solutions with assembled semiflexible fibrils. The incorporation of machine learning improves the speed of the analysis without sacrificing accuracy. Experimental results demonstrate the successful handling of complex macromolecular structures with dispersity in dimensions using this approach.
Article
Optics
Grace Pakeltis, Enzo Rotunno, Siamak Khorassani, David A. Garfinkel, Robyn Collette, Claire A. West, Scott T. Retterer, Juan Carlos Idrobo, David J. Masiello, Philip D. Rack
Summary: This study leverages the high spatial and energy resolution of monochromated aberration-corrected scanning transmission electron microscopy to investigate the hybridization of cyclic assemblies of plasmonic gold nanorods. The experiments and simulations reveal the coupling of long-axis dipole modes into collective magnetic and electric dipole plasmon resonances, with findings on the energy splitting of the magnetic mode and antibonding modes for oligomers with different polygon edges. Optically, it was found that the extinction efficiencies of electric and magnetic modes are maximized in the n=4 arrangement among the oligomers studied.
Article
Optics
Markus Allgaier, Brian J. Smith
Summary: The study proposes a new method for determining the depth, scattering, and absorption length of glaciers based on the diffuse propagation of short optical pulses. By conducting Monte Carlo simulations, it is shown that the proposed approach should be feasible with current technology, allowing for the extraction of optical properties and geometry of glaciers from realistic measurements.
Article
Astronomy & Astrophysics
R. Siebenmorgen
Summary: Distance estimates are unified by considering extinction by large grains and adding a population of dark dust to models of the interstellar medium. The dark dust model explains the typical reddening, extinction, and light emission at different wavelengths by interstellar dust particles. Dark dust consists of micrometer-sized particles and contributes to reddening in the far-UV to near-infrared range. It also re-emits light in the submillimeter region at very cold temperatures. The presence of dark dust has implications for understanding supernova Ia light curves and the unification of distance scales.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Biochemical Research Methods
Tadej Tomanic, Luka Rogelj, Matija Milanic
Summary: Analysing diffuse reflectance spectra to extract properties of biological tissue requires modelling of light transport within the tissue. This study evaluates the impact of fixing different model parameters on the accuracy and robustness of a GPU-accelerated algorithm and proposes a method to improve the fitting performance by pre-estimating model parameters.
BIOMEDICAL OPTICS EXPRESS
(2022)
Article
Nanoscience & Nanotechnology
Haoxin Mai, Teng Lu, Qian Li, Zhifu Liu, Yongxiang Li, Felipe Kremer, Li Li, Ray L. Withers, Haidan Wen, Yun Liu
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Materials Science, Ceramics
Muhammad Qadeer Awan, Javed Ahmad, Adam Berlie, Qingbo Sun, R. L. Withers, Yun Liu
CERAMICS INTERNATIONAL
(2018)
Article
Physics, Applied
Bethany R. McBride, Jonathon Lieschke, Adam Berlie, David L. Cortie, Helen Y. Playford, Teng Lu, Narendirakumar Narayanan, Ray L. Withers, Dehong Yu, Yun Liu
JOURNAL OF APPLIED PHYSICS
(2018)
Correction
Materials Science, Multidisciplinary
Thomas A. Whittle, William R. Brant, Ray L. Withers, Yun Liu, Christopher J. Howard, Siegbert Schmid
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
Article
Chemistry, Multidisciplinary
Qingbo Sun, Shaoyang Zhang, David Cortie, Julien Langley, Nicholas Cox, Terry J. Frankcombe, Jie Gao, Hua Chen, Ray L. Withers, Felipe Kremer, Dehong Yu, Frank Brink, Wensheng Shi, Yun Liu
Article
Chemistry, Multidisciplinary
Teng Lu, Ye Tian, Andrew Studer, Narendirakumar Narayanan, Qian Li, Ray Withers, Li Jin, Y. Mendez-Gonzalez, A. Pelaiz-Barranco, Dehong Yu, Garry J. McIntyre, Zhuo Xu, Xiaoyong Wei, Haixue Yan, Yun Liu
Article
Chemistry, Multidisciplinary
Gemma de la Flor, Danel Orobengoa, Robert A. Evarestov, Yuri E. Kitaev, Emre Tasci, Mois I. Aroyo
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2019)
Article
Multidisciplinary Sciences
Zhen Liu, Teng Lu, Fei Xue, Hengchang Nie, Ray Withers, Andrew Studer, Felipe Kremer, Narendirakumar Narayanan, Xianlin Dong, Dehong Yu, Longqing Chen, Yun Liu, Genshui Wang
Article
Chemistry, Physical
Teng Lu, Ye Tian, Andrew Studer, Qian Li, Ray L. Withers, Li Jin, Dehong Yu, Zhuo Xu, Xiaoyong Wei, Yun Liu
CHEMISTRY OF MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Chunxi Hao, Yu Wang, Teng Lu, Felipe Kremer, Ray Withers, Chang Liu, Aqun Zheng, Sen Yang, Xiaoping Song, Xiaobing Ren, Yun Liu
Summary: Large magnetostriction with low saturation magnetic field is observed in Fe-Pd ferromagnetic strain glass alloys, which is highly desirable for miniaturized sensor and actuator applications. The high performance magnetostriction is found to originate from the structure of ferromagnetic strain glass, which consists of local chemical order forming tetragonal martensitic nanodomains with local crystal symmetry breaking. The combination of martensitic nanodomains and low modulus is necessary to achieve both large magnetostriction and a low saturation field.
Correction
Materials Science, Multidisciplinary
Chunxi Hao, Yu Wang, Teng Lu, Felipe Kremer, Ray Withers, Chang Liu, Aqun Zheng, Sen Yang, Xiaoping Song, Xiaobing Ren, Yun Liu
Review
Chemistry, Physical
Muzaffar Ahmad Boda, Ray L. Withers, Yun Liu, Jinhua Ye, Zhiguo Yi
Summary: Ferroic-photocatalysis is an effective strategy for combating recombination loss of photogenerated charge carriers, utilizing built-in electric fields or exotic polarization profiles to separate and drive photogenerated electrons and holes efficiently. Despite some exciting initial reports, limited attempts have been made to understand the underlying physico-chemistry of ferroic-photocatalysis.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Qian Li, Sergey Danilkin, Guochu Deng, Zhengrong Li, Ray L. Withers, Zhuo Xu, Yun Liu
JOURNAL OF MATERIOMICS
(2018)
Article
Materials Science, Multidisciplinary
Barry Bradlyn, L. Elcoro, M. G. Vergniory, Jennifer Cano, Zhijun Wang, C. Felser, M. I. Aroyo, B. Andrei Bernevig
Article
Materials Science, Multidisciplinary
Jennifer Cano, Barry Bradlyn, Zhijun Wang, L. Elcoro, M. G. Vergniory, C. Felser, M. I. Aroyo, B. Andrei Bernevig