Article
Materials Science, Multidisciplinary
Sofian N. Obaid, Zhiyuan Chen, Micah Madrid, Zexu Lin, Jinbi Tian, Camille Humphreys, Jillian Adams, Nicolas Daza, Jade Balansag, Igor R. Efimov, Luyao Lu
Summary: Researchers have designed a soft implantable electro-optical cardiac device that allows simultaneous high-precision electrical mapping and optogenetics, providing real-time spatiotemporal mapping and control of cardiac rhythm and function. This technology has broad applications in basic and clinical cardiology.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Optics
Jingchen Ye, Hongwei Ji, Xiaochuan Zhang
Summary: In this study, a digital image correlation method for large deformation measurement is proposed, which achieves non-contact full-field measurement and high measurement accuracy in optical mechanics through the use of an initial estimation algorithm and a modified inverse compositional Gauss-Newton algorithm.
OPTICS AND LASERS IN ENGINEERING
(2022)
Article
Optics
Han Cao, Yize Liang, Lulu Wang, Zhengsen Ruan, Hongya Wang, Jinwei Zeng, Jian Wang
Summary: In this paper, a quasi-wavelet conformal mapping method is proposed and demonstrated for scalable and efficient dense OAM demultiplexing in optical communications. The method divides the OAM mode into concentric rings and maps them to tilted plane waves, reducing demultiplexing crosstalk. It is compared with other methods and shown to achieve efficient demultiplexing for 15 OAM modes with low crosstalk. The method is also applied to data-carrying OAM-MDM communications with favorable performance.
LASER & PHOTONICS REVIEWS
(2023)
Article
Engineering, Mechanical
Yufei Li, Kan Zheng
Summary: The stress intensity factors of kinked cracks emanating from a hole were calculated using Muskhelishvili's formalism. A numerical Schwarz-Christoffel conformal mapping method showed good accuracy in transforming the complex crack configuration onto a unit circle. The method demonstrated potential for analyzing cracks with complex configurations, particularly in cases of hole cracks with multiple kinks.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2021)
Article
Computer Science, Software Engineering
Maodong Pan, Falai Chen
Summary: This paper proposes a new parameterization method for planar domains using hierarchical B-splines (HB-splines), which achieves low-distortion mapping through local refinement while ensuring bijective parameterization.
COMPUTER AIDED GEOMETRIC DESIGN
(2022)
Article
Electrochemistry
Junqiao Lee, Jesse W. Mullen, Ghulam Hussain, Debbie S. Silvester
Summary: Microelectrodes are popular in electroanalysis for high current density, which can be further increased by multiplying the number of electrodes in an array configuration. The spacing between microelectrodes significantly affects the deposition effects and current responses, with smaller spacing potentially allowing for higher electrode density.
ELECTROCHIMICA ACTA
(2021)
Article
Green & Sustainable Science & Technology
Lianhuo Wu, Zelin Zhou, Jinxiang Zhang, Mingjin Zhang
Summary: This study proposed a numerical method for conformal mapping of closed box girder bridges and applied it to flutter performance prediction, which is crucial for ensuring the safety and sustainability of bridge structures.
Article
Mathematics, Applied
Andrea Bonito, Murtazo Nazarov
Summary: The novel algorithm proposed approximates SQG flows successfully, demonstrating its accuracy and applicability in practice, as well as showing theoretical energy decay rates.
SIAM JOURNAL ON SCIENTIFIC COMPUTING
(2021)
Article
Chemistry, Multidisciplinary
Minghao Li, Shuangqing Chen, Weidong Jiang, Yuchun Li, Zhe Xu, Bing Guan, Xingwang Wang, Xiaoqiang Lin, Tianqing Liu
Summary: This study analyzes the leakage accident of hydrogen-blended natural gas in a domestic kitchen and its effects on gas distribution and ventilation. The results show that the distribution of gas is influenced by height and the blending ratio, while the ventilation process is affected by ventilation conditions and the gas layering properties. The study also highlights the importance of considering the hazardous gas cloud volume in risk assessment.
Article
Materials Science, Multidisciplinary
Ming Dai, Jian Hua
Summary: This paper discusses the use of conformal mapping to study anisotropic elastic half-planes and its application in two-dimensional deformation, finding that the key parameters of the mapping must satisfy simple geometric conditions.
MATHEMATICS AND MECHANICS OF SOLIDS
(2021)
Article
Astronomy & Astrophysics
Vsevolod Nedora, Federico Schianchi, Sebastiano Bernuzzi, David Radice, Boris Daszuta, Andrea Endrizzi, Albino Perego, Aviral Prakash, Francesco Zappa
Summary: We present fitting formulae for the properties of dynamical ejecta and remnant disk masses, and find that microphysics and neutrio absorption have significant impact on the results.
CLASSICAL AND QUANTUM GRAVITY
(2022)
Article
Neurosciences
Xianjun Li, Mengxuan Li, Miaomiao Wang, Fan Wu, Heng Liu, Qinli Sun, Yuli Zhang, Congcong Liu, Chao Jin, Jian Yang
Summary: The study investigated white matter maturation in neonates using diffusion kurtosis imaging (DKI) with multiparametric analysis, revealing additional changing patterns and stronger negative correlations compared to traditional diffusion tensor (DT) metrics. Results suggest that DKI benefits the understanding of white matter maturation processes and degrees in neonates.
HUMAN BRAIN MAPPING
(2022)
Article
Engineering, Chemical
Guanping Huo, Xueyan Guo
Summary: In this study, heterogeneous chemical looping combustion (CLC) reactions and transports in large oxygen carrier particles were numerically investigated using computational fluid dynamics (CFD) approaches. A threshold Reynolds number for external convections was found to enhance intraparticle reactions. Comprehensive analyses on transports across the particle surface and their influences on reactions inside the particles were conducted, presenting insights into the complex processes in fixed bed CLC reactors.
Article
Astronomy & Astrophysics
Adnane Osmane, Emilia Kilpua, Harriet George, Oliver Allanson, Milla Kalliokoski
Summary: This research report presents a drift-kinetic description of radial transport for the Earth's radiation belts, distinguishing between fast and diffusive radial transport and verifying it through in situ testing. The study shows that the acceleration by Alfvenic waves cannot be fully explained by diffusive models.
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
(2023)
Article
Astronomy & Astrophysics
Eun-Jin Shin, Ji-Hoon Kim, Boon Kiat Oh
Summary: Metallicity is an important factor in understanding the baryon physics in galaxies, and reproducing observed metal distribution through numerical experiments is crucial. This study examines the impact of numerical schemes on galactic metal distribution and finds that a sufficient number of gas particles is needed in particle-based simulations to properly investigate metal distribution. The inclusion of an explicit metal diffusion scheme does not significantly affect metal distribution in the galactic disk.
ASTROPHYSICAL JOURNAL
(2021)
Article
Electrochemistry
Alexander Oleinick, Yun Yu, Michael V. Mirkin, Irina Svir, Christian Amatore
Article
Chemistry, Multidisciplinary
Anna Larsson, Soodabeh Majdi, Alexander Oleinick, Irina Svir, Johan Dunevall, Christian Amatore, Andrew G. Ewing
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Multidisciplinary
Lin Ren, Alexander Oleinick, Irina Svir, Christian Amatore, Andrew G. Ewing
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Electrochemistry
Giovanni Pireddu, Irina Svir, Christian Amatore, Alexander Oleinick
Summary: The study shows that the Voronoi approach provides reasonably good predictions of total currents flowing through each elementary cell of the array. However, it also demonstrates that the currents predicted for individual sites within an elementary cell based on simulations using Voronoi approaches are excessively wrong, neglecting significant redistributions of flux lines as diffusion layers expand with time. This suggests potential complications when using Voronoi approaches for complex kinetics or predicting outcomes of electroanalytical methods relying on a fine coupling between local concentrations and local fluxes.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Giovanni Pireddu, Irina Svir, Christian Amatore, Alexander Oleinick
Summary: This study validates the theory developed by Amatore and Saveant 40 years ago for arrays of electroactive band or disk electrodes, demonstrating that competitive diffusion interaction between active sites leads to redistribution of diffusion layers and homogenization of solution volumes. The study also confirms the approximation that the voltammetric behavior of arrays of nanodisk electrodes is similar to that of independent cylindrical unit cells operating in parallel.
Article
Electrochemistry
Baodan Zhang, Wei Wang, Cheng Liu, Lianhuan Han, Juan Peng, Alexander Oleinick, Irina Svir, Christian Amatore, Zhong-Qun Tian, Dongping Zhan
Summary: In this work, a simple and easily applicable voltammetric approach is described to characterize and measure the site-hopping surface diffusion of UPD metal adatoms on nanoelectrodes. By using nanoelectrodes, the major involvement of site-hopping surface diffusion of UPD Pb adatoms on polycrystalline gold was established and quantitatively characterized.
Review
Electrochemistry
Alexander Oleinick, Oleksii Sliusarenko, Irina Svir, Christian Amatore
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)