diffusion models

Adopters as a Scarce Resource: A Chemostat-like Approach to Single-Technology Diffusion

This paper models innovation diffusion trajectories within capacity-limited market niches. To overcome the structural limitations of classical phenomenological frameworks (Bass, Gompertz, and Mansfield models)—namely, rigidly fixed trajectory asymmetry and the lack of underlying microeconomic justification—the author p...

Deep learning-driven joint blind source separation and noise suppression for audio signals: a performance optimization study

Separating overlapping talkers and suppressing non-stationary noise are coupled problems, yet conventional pipelines solve them in isolation, so separation artifacts propagate untouched into the denoising stage. We therefore build a time–frequency joint separation–denoising network: a learnable encoder, a multi-scale...

Consumption environment, fan engagement, and social diffusion in non-professional football: an S-O-R study of China's Su Chao league

Introduction Non-professional sports leagues represent an increasingly significant segment of the sports economy, yet the micro-level behavioral mechanisms through which innovative consumption environments generate sustained consumer engagement remain poorly understood. This study applies the Stimulus–Organism–Response...

Inverse Kernel Identification in a Time‐Fractional Integro‐Differential Equation

ABSTRACT This article investigates a fractional diffusion‐wave model incorporating memory effects. We first analyze the direct problem and establish the existence, uniqueness, and regularity of its solution under suitable conditions. The primary focus is on an inverse problem, in which an unknown time‐dependent kernel...

Understanding Semiconductor Plasma Dynamics

Plasma waves, instabilities and nonlinearities in semiconductor plasmas play important roles in high-frequency semiconductor devices and optoelectronic devices. This chapter discusses the physics of waves and instabilities in semiconductor plasmas, including interactions between charge carriers, waves and phonons. Plas...

Gravitational Decoherence and Stochastic Tidal Phase Diffusion of Galactic Dark Matter Solitons: Microscopic Lindblad Evolution and Pulsar Timing Observables

Abstract: Wave or Fuzzy Dark Matter (ψ\psiψDM), consisting of ultralight bosons of mass ma∼10−22 eVm_a \sim 10^{-22}\text{ eV}ma∼10−22 eV, is conventionally modeled as an isolated, eternally coherent macroscopic Bose-Einstein condensate (τdecoh→∞\tau_{\text{decoh}} \to \inftyτdecoh→∞) governed by the unitary Gross-Pita...

Exact Soliton Solutions and Lyapunov-Based Nonlinear Dynamical Analysis of a Classical Kolmogorov–Petrovsky–Piskunov Equation

In this study, an analytical and dynamical study of the classical Kolmogorov–Petrovsky– Piskunov (KPP) equation is carried out by means of the improved generalized Riccati equation mapping (IGREM) method. An appropriate traveling-wave transformation is used to reduce the governing equation and several families of exact...

dissmodel-ca: Cellular Automata extension for DisSModel

Cellular automata models for the DisSModel framework (vector and raster substrates): Game of Life, fire spread, growth, snow, diffusion, Wolfram rules and other classic examples, ported from the TerraME model collection.

Encoder relationships govern selectivity in embedding-space attacks on text-to-image diffusion models

Integrating Edge AI, IoT, and Circular Economy Principles for Next-Generation Wearable Intelligence

With the rapid development of the textile technologies, few empirical studies have investigated the possibility of simultaneously improving the environmental performance, the operational efficiency, and the users' acceptance of sustainable smart textile ecosystems, in order to achieve the circular economy goals. To inv...

Evaluation of Technical Readiness of the Whole-Process Optimized Fertilization Plan for Vitis vinifera ‘Red Globe’ at a County Scale

Excessive fertilization in grape production reduces profitability and harms the environment. A five-year field experiment and household survey in Xiangyun County, Yunnan, evaluated a whole-process optimized fertilization plan for Vitis vinifera ‘Red Globe’ (hereafter abbreviated as Red Globe Grapes) and its spatial dif...

Design and optimisation of instantaneous controlled pressure drop technology for the sandalwood industry

Indian sandalwood (Santalum album L.) is a high-value aromatic tree native to South Asia and now cultivated commercially in tropical regions, including northern Australia. Its principal marketable product is a heartwood essential oil rich in the sesquiterpene alcohols alpha- and beta-santalol, which underpin its use in...