Výsledky vyhledávání - "Chowdhury, Shah"

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Symmetry Breaking with the SCAN Density Functional Describes Strong Correlation in the Singlet Carbon Dimer

Autor: Perdew, John P., Chowdhury, Shah Tanvir ur Rahman, Shahi, Chandra, Kaplan, Aaron D., Song, Duo, Bylaska, Eric J.

The SCAN (strongly constrained and appropriately normed) meta-generalized gradient approximation (meta-GGA), which satisfies all 17 exact constraints that a meta-GGA can satisfy, accurately describes equilibrium bonds that are normally correlated. Wi

Externí odkaz: http://arxiv.org/abs/2210.15080

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Incorporation of density scaling constraint in density functional design via contrastive representation learning

Autor: Gong, Weiyi, Sun, Tao, Bai, Hexin, Chowdhury, Shah Tanvir ur Rahman, Chu, Peng, Aryal, Anoj, Yu, Jie, Ling, Haibin, Perdew, John P., Yan, Qimin

In a data-driven paradigm, machine learning (ML) is the central component for developing accurate and universal exchange-correlation (XC) functionals in density functional theory (DFT). It is well known that XC functionals must satisfy several exact

Externí odkaz: http://arxiv.org/abs/2205.15071

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Dissertation/ Thesis

Electrical Capacitance Volume Tomography (ECVT) Based Imaging and Velocimetry for Two-phase Flow Measurements

Autor: Chowdhury, Shah Mahmud Hasan

Electrical Capacitance Volume Tomography (ECVT) refers to three-dimensional (3D) imaging of flow media exhibiting two or more material phases in a region of interest (RoI) based on electric permittivity variations. Such multiphase flows are commonly

Externí odkaz: http://rave.ohiolink.edu/etdc/view?acc_num=osu1627023824224726

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Akademický článek

Implications of Jhau (Tamarix: Casuarina equisetifolia) forest deforestation on coastal landscape ecology and climate change adaptation in Cox's Bazar, Bangladesh

Autor: Biswas, Rathindra Nath, Rashid, Kazi Jihadur, Ullah, Md. Amanat, Chowdhury, Shah Imran Ahsan

Publikováno v: In Ecological Frontiers October 2024 44(5):1027-1051

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Spherical vs. Non-Spherical and Symmetry-Preserving vs. Symmetry-Breaking Densities of Open-Shell Atoms in Density Functional Theory

Autor: Chowdhury, Shah Tanvir ur Rahman, Perdew, John P.

The atomization energies of molecules from first-principles density functional approximations improve from the local spin-density approximation (LSDA) to the Perdew-Burke-Ernzerhof (PBE)) generalized gradient approximation (GGA) to the strongly const

Externí odkaz: http://arxiv.org/abs/2109.14113

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Dual Pixel Exploration: Simultaneous Depth Estimation and Image Restoration

Autor: Pan, Liyuan, Chowdhury, Shah, Hartley, Richard, Liu, Miaomiao, Zhang, Hongguang, Li, Hongdong

The dual-pixel (DP) hardware works by splitting each pixel in half and creating an image pair in a single snapshot. Several works estimate depth/inverse depth by treating the DP pair as a stereo pair. However, dual-pixel disparity only occurs in imag

Externí odkaz: http://arxiv.org/abs/2012.00301

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Simple hydrogenic estimates for the exchange and correlation energies of atoms and atomic ions, with implications for density functional theory

Autor: Kaplan, Aaron D., Santra, Biswajit, Bhattarai, Puskar, Wagle, Kamal, Chowdhury, Shah Tanvir ur Rahman, Bhetwal, Pradeep, Yu, Jie, Tang, Hong, Burke, Kieron, Levy, Mel, Perdew, John P.

Exact density functionals for the exchange and correlation energies are approximated in practical calculations for the ground-state electronic structure of a many-electron system. An important exact constraint for the construction of approximations i

Externí odkaz: http://arxiv.org/abs/2007.01917

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