diffusion models

On-demand inverse design of metamaterials via denoising diffusion probabilistic models

The nonlinear and non-unique relationship between unit-cell topology and bandgap properties motivates the development of complementary data-driven approaches for metamaterial inverse design. This work presents a conditional denoising diffusion probabilistic model (DDPM)-based framework for the on-demand generation of t...

Protected-Reaction Nanofabrication: Theoretical Frameworks for Chemical Containment, Product-State Optical Discrimination, and Rigidity-Preserving Material Handoff

This research package develops a set of theoretical and computational frameworks addressing several limiting problems in programmable post-lithographic nanofabrication: confinement of reactive chemistry, selective excitation of unresolved fabrication sites, preservation of structural geometry during scaffold-to-product...

Impact-Triggered Seismicity: Essential Physics and a Hierarchical Modeling Framework

Peruvian Pre-Hispanic Ceramics Image Dataset for Digital Inpainting and Reconstruciton

This dataset comprises approximately 5,000 visual records of pre-Hispanic Peruvian ceramic vessels from the Paracas, Moche, and Nazca cultures. The imagery was compiled via automated web scraping from the public digital repositories of the Ministry of Culture of Peru (Ministerio de Cultura del Perú), conducted with the...

A Scale-Adaptive Framework for Building Generalization via Instruction-Guided Diffusion and Geometry-Aware Vectorization

Abstract Map generalization aims to adapt detailed geospatial data to visualization at different map scales while preserving legibility and geometric consistency. Recent learning-based approaches have shown promising results, but they typically require training separate models for each target scale and produce raster o...

Thyra-Hopf Detuning Theory (THDT): A Geometric Framework for Gravity, Particle Physics, and Cosmology from a Vibrational Substrate on the Hopf Fibration

Thyra-Hopf Detuning Theory (THDT) proposes that gravity, the Standard Model, dark matter, dark energy, and cosmology emerge from a single multicomponent real scalar field on a compact internal S³ equipped with the Hopf fibration. The sole free parameter is the Bower Constant ⟨δ⟩/ω̄ ≈ 0.015, adopted as a fixed empirical...

Kinetic accessibility governs the transition from organic retention to mineral trapping during geological CO2 storage

This dataset contains numerical simulation results supporting the study “Kinetic accessibility governs the transition from organic retention to mineral trapping during geological CO2 storage.” It examines the molecular and geochemical processes governing reversible CO2 retention on organic matter and subsequent access...

RF Alpha-Channeling in a D–³He Tandem-Mirror Burner: Raising the Recoverable Charged-Particle Fraction from 8% Toward 80%

In a deuterium–helium-3 (D–^3He) tandem-mirror burner the fusion-born 14.68 MeV proton and 3.67 MeV alpha carry the overwhelming majority of the released power as fast, mirror-trapped ions. Left to thermalise, that energy is shared between electron drag and a broadly heated ion background whose confined, usefully recov...

Dataset and Source Code for "Geometry-Aware Stability and Stiffness-Robust Fractional Time Integration of Partial Differential Equations by Dual-Reciprocity Boundary Elements and Implicit Adams–Moulton Schemes"

This research presents a computational framework for the numerical solution and stability analysis of time-fractional partial differential equations on complex two-dimensional domains using the dual reciprocity boundary element method combined with an implicit Adams-Bashforth-Moulton predictor-corrector time-integratio...

Modeling of CO2-Based Fischer–Tropsch Synthesis over a Cu/Zn/K-Promoted Fe Catalyst: Influence of Reaction Kinetics and Multi-Fixed-Bed Reactor Design

CO2 hydrogenation by reverse water–gas shift (RWGS) directly combined with subsequent Fischer–Tropsch synthesis (FTS) in a single fixed-bed reactor represents a promising route for converting renewable hydrogen and captured carbon dioxide into hydrocarbons. However, the attainable CO2 conversion is limited by thermodyn...

Correlated-Electron Theory of Triplet-Triplet Multiexciton States in Polypentacene

We present correlated-electron calculations of optical spin-singlet and triplet-triplet multiexciton states in three- and four-unit pentacene oligomers as models for polypentacene. The calculations use the Pariser-Parr-Pople Hamiltonian, multi-reference singles and doubles configuration interaction, ad a molecular exci...

Kinetic accessibility governs the transition from organic retention to mineral trapping during geological CO2 storage

This dataset contains numerical simulation results supporting the study “Kinetic accessibility governs the transition from organic retention to mineral trapping during geological CO2 storage.” It examines the molecular and geochemical processes governing reversible CO2 retention on organic matter and subsequent access...