A parallel domain decomposition method for solving elliptic equations on manifolds

Kavli Affiliate: Feng Wang | First 5 Authors: Lizhen Qin, Feng Wang, Yun Wang, , | Summary: We propose a new numerical domain decomposition method for solving elliptic equations on compact Riemannian manifolds. One advantage of this method is its ability to bypass the need for global triangulations or grids on the manifolds. Additionally, it […]


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Seismic Traveltime Tomography with Label-free Learning

Kavli Affiliate: Feng Wang | First 5 Authors: Feng Wang, Bo Yang, Renfang Wang, Hong Qiu, | Summary: Deep learning techniques have been used to build velocity models (VMs) for seismic traveltime tomography and have shown encouraging performance in recent years. However, they need to generate labeled samples (i.e., pairs of input and label) to […]


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The ab initio amorphous materials database: Empowering machine learning to decode diffusivity

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Hui Zheng, Eric Sivonxay, Max Gallant, Ziyao Luo, Matthew McDermott | Summary: Amorphous materials exhibit unique properties that make them suitable for various applications in science and technology, ranging from optical and electronic devices and solid-state batteries to protective coatings. However, data-driven exploration and design of […]


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Exciton-phonon coupling induces new pathway for ultrafast intralayer-to-interlayer exciton transition and interlayer charge transfer in WS2-MoS2 heterostructure: a first-principles study

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Yang-hao Chan, Mit H. Naik, Jonah B. Haber, Jeffrey B. Neaton, Steven G. Louie | Summary: Despite the weak, van-der-Waals interlayer coupling, photoinduced charge transfer vertically across atomically thin interfaces can occur within surprisingly fast, sub-50fs timescales. Early theoretical understanding of the charge transfer is based […]


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On the Statistical Mechanics of Mass Accommodation at Liquid-Vapor Interfaces

Kavli Affiliate: David T. Limmer | First 5 Authors: Kritanjan Polley, Kevin R. Wilson, David T. Limmer, , | Summary: We propose a framework for describing the dynamics associated with the adsorption of small molecules to liquid-vapor interfaces, using an intermediate resolution between traditional continuum theories that are bereft of molecular detail and molecular dynamics […]


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Observation of periodic optical spectra and soliton molecules in a novel passively mode-locked fiber laser

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Haobin Zheng, Kangrui Chang, Yong Shen, Yongzhuang Zhou | Summary: Due to the necessity of making a series of fine adjustments after mode-locking in most experiments for preparing soliton molecules, the repeatability of the preparations remains a challenge. Here, we propose a novel all-polarization-maintaining erbium-doped […]


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City Scene Super-Resolution via Geometric Error Minimization

Kavli Affiliate: Feng Wang | First 5 Authors: Zhengyang Lu, Feng Wang, , , | Summary: Super-resolution techniques are crucial in improving image granularity, particularly in complex urban scenes, where preserving geometric structures is vital for data-informed cultural heritage applications. In this paper, we propose a city scene super-resolution method via geometric error minimization. The […]


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Energy-Efficient Data Offloading for Earth Observation Satellite Networks

Kavli Affiliate: Feng Wang | First 5 Authors: Lijun He, Ziye Jia, Juncheng Wang, Feng Wang, Erick Lansard | Summary: In Earth Observation Satellite Networks (EOSNs) with a large number of battery-carrying satellites, proper power allocation and task scheduling are crucial to improving the data offloading efficiency. As such, we jointly optimize power allocation and […]


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In situ coherent X-ray scattering reveals polycrystalline structure and discrete annealing events in strongly-coupled nanocrystal superlattices

Kavli Affiliate: Naomi S. Ginsberg | First 5 Authors: Matthew J. Hurley, Christian P. N. Tanner, Joshua Portner, James K. Utterback, Igor Coropceanu | Summary: Solution-phase bottom up self-assembly of nanocrystals into superstructures such as ordered superlattices is an attractive strategy to generate functional materials of increasing complexity, including very recent advances that incorporate strong […]


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Efficient Deformable ConvNets: Rethinking Dynamic and Sparse Operator for Vision Applications

Kavli Affiliate: Feng Wang | First 5 Authors: Yuwen Xiong, Zhiqi Li, Yuntao Chen, Feng Wang, Xizhou Zhu | Summary: We introduce Deformable Convolution v4 (DCNv4), a highly efficient and effective operator designed for a broad spectrum of vision applications. DCNv4 addresses the limitations of its predecessor, DCNv3, with two key enhancements: 1. removing softmax […]


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