diffusion models

In Vitro Release Kinetics and Mathematical Modeling of Ribes nigrum Extract-Loaded PLGA/Chitosan Nanoparticles

= 0.9796) and followed anomalous transport kinetics, indicating a combined contribution of diffusion and polymer relaxation mechanisms.ConclusionThese findings demonstrate the value of comprehensive kinetic modeling in the design of nanoparticulate delivery systems and indicate that RN-loaded hybrid polymeric nanoparti...

Stability and Control of Fractional-Order Fuzzy Stochastic Clifford-Valued Neural Networks with Hybrid Markovian Switching, Cyber-Attacks, and Event-Triggered Multi-Agent Synchronization

We develop a rigorous stability and control theory for a class of Caputo fractional-order, Takagi–Sugeno (T–S) fuzzy, Itô stochastic, Clifford-valued neural networks (FFSCNNs) operating as agents of a leader–following multi-agent system. The model simultaneously incorporates (i) a Clifford (geometric) algebra state spa...

Industrial Application of Heat and Mass Diffusion in Thermal Management and Chemical Process Systems Using the Homotopy Perturbation Method

Transient heat and mass diffusion are fundamental transport mechanisms governing the performance of thermal management systems, electronic cooling devices, polymer processing, membrane separation, drying operations, and chemical processing systems. This study investigates the transient diffusion of heat and chemical...

Optical tracking of mixed ionic-electronic transport in conjugated polymers

While OMIECs are widely used for bioelectronics, the dynamic relationship between ionic and electronic transport in these materials is generally poorly understood, hindering the rational design of new materials. To investigate mixed charge transport in detail, we developed an optical method to monitor electrochemical (...

Avenyra Geometric Memory Physics: Complete Spectral Certificates, Exact Tomography, and Correlation-Resolved Probe Survival in an Endogenous Memory Controller

Avenyra Geometric Memory Physics v3.0.0 develops a mathematical-physics framework for a controller in which accumulated geometric history changes the space of permitted future motion. It connects an exact signed-area update to spectral ordering, reconstructible observables, stochastic evolution, passive probe survival,...

Microstructural evolution, boride layer growth kinetics, and activation energy of dual-activator borided AISI 1040 steel

This study investigates the microstructural evolution, boride layer growth kinetics, and activation energy for boron diffusion in AISI 1040 steel borided using a dual-activator medium. Boriding was performed at 1173, 1223, and 1273 K for 2, 4, and 6 h. The phase composition of the boride layers was characterized by X-r...

Closed connections and state changes after a loop in WRRA

Executive paper B, revised version 1.0. Authors: Wonsik Choi and Jeongin Choi, Independent Research, Seoul, Republic of Korea. Korean title: WRRA의 닫힌 연결 구조와 이동 후 상태 변화. This preprint develops an explicit, executable WRRA construction linking a finite cellulation of the Klein bottle to internal state tran...

Temperature-dependent swelling behavior of EPDM vulcanizates with varying ethylene content based on hansen solubility parameter approach

The swelling behavior of two ethylene-propylene-diene monomer (EPDM) vulcanizates with different ethylene contents, denoted as EPDM44 and EPDM52, was systematically investigated in cyclohexane, xylene, and cyclohexanone at different temperatures using the equilibrium swelling method. The effects of solvent type, ethyle...

Controllability of an SEIR-type model with diffusion for spatial epidemic spread

A PRISMA ‐Based Systematic Survey on Text to Image Generative Models in Multilingual Contexts

ABSTRACT Purpose The main purpose of this study is to conduct a systematic literature review (SLR) on current trends in text‐to‐image synthesis, focusing on research questions related to datasets, generative approaches, evaluation metrics, and application domains. Special emphasis is given to multilingual pre‐trained m...

Intelligent Asset Management of Aging Infrastructure: Unveiling Non-Linear Degradation and Negative Resilience via Massive-Scale SDE Simulations

Conventional infrastructure asset management relies heavily on continuous, linear degradation models, which often fail to capture sudden macroscopic failures. This study computationally explores these limitations by investigating non-linear degradation processes under specified boundary conditions. We propose a stochas...

CoCiP/APCEMM/EULAG-LCM Comparison - Software Resources and Processed Model Outputs

This repository contains the pre- and post-processing code used to compare the evolution of a contrail in the diffusion regime across three models — EULAG-LCM, APCEMM, and CoCiP. It generates a shared meteorology, translates flight/engine parameters and initial conditions into each model's native input format, and prod...