Results 141 to 150 of about 13,496 (258)

Study on Permeability Coefficient of Saturated Clay Modified by Fractal Theory and Poiseuille Theory. [PDF]

Materials (Basel)
Guo L, Xin X, He K.
europepmc   +1 more source

Is the World Getting Smaller? Network‐Driven Heterogeneity in Gravity‐Model Elasticities

The World Economy, EarlyView.
ABSTRACT Gravity models constitute the workhorse of empirical international trade research, yet the temporal stability of their core parameters—distance and GDP elasticities—remains underexplored, particularly in relation to the evolving structure of trade networks.
Zsolt T. Kosztyán, Rita Mátrai, Dénes Kiss   +2 more
wiley   +1 more source

Evolution Mechanism of Volume Parameters and Gradation Optimization Method for Asphalt Mixtures Based on Dual-Domain Fractal Theory. [PDF]

Materials (Basel)
Hu B, Qian Z, Zhang F, Zhang Y.
europepmc   +1 more source

Dyssynchrony without dysfunction: Left bundle branch block does not acutely reduce cardiac output

The Journal of Physiology, EarlyView.
Abstract figure legend Six electromechanical in silico heart models were simulated under healthy and pure acute left bundle branch block (LBBB) conditions. LBBB induced electrical dyssynchrony and increased left ventricular free wall strain, while the right and left ventricular ejection fraction remained relatively unchanged.
Carola Kruthoff, Jonathan Krauß, Jorge Sánchez, Tobias Gerach, Cristian Barrios Espinosa, Jan‐Erik Duhme, Axel Loewe   +6 more
wiley   +1 more source

Research on the Grouting Mechanism and Theoretical Models of Weathered Sandstone According to the Fractal Theory. [PDF]

ACS Omega
Zhou D, Qin P, Wang A, Si K.
europepmc   +1 more source

Modeling and Analysis of Torsional Stiffness in Rehabilitation Robot Joints Using Fractal Theory. [PDF]

Materials (Basel)
Zou S, Yan W, Xie G, Yang R, Xu H, Sun F.   +5 more
europepmc   +1 more source

Fractal Category Theory

This deposit contains the manuscript Fractal Category Theory: Scale as a Frobenius (Co)Monad and Ind–Pro Bicompletion with Stable Equivariant Kan Extensions. The work models “scale” via a single endofunctor T:C→CT:\mathcal{C}\to\mathcal{C}T:C→C carrying compatible monad and comonad structures (Frobenius compatibility).
openaire   +2 more sources

Contact Resistance Modeling Under Complex Wear Conditions Based on Fractal Theory. [PDF]

Materials (Basel)
Zhang C, Liu X, Jin L, Yan R, Yang Q.
europepmc   +1 more source

Four Decades of Research at the MADE Site and Beyond: Advancing the Understanding and Modeling of Solute Transport in Heterogeneous Media

Reviews of Geophysics, Volume 64, Issue 4, December 2026.
Abstract Spatial heterogeneity, manifested as strong variability in hydraulic conductivity (K) within geological formations, exerts a fundamental control on groundwater flow and solute transport. Because K can vary over multiple orders of magnitude in complex three‐dimensional patterns, predicting contaminant plume migration remains a long‐standing ...
Zhilin Guo, Maosheng Yin, Peiyao Dong, Yong Zhang, Kewei Chen, Graham Fogg, Brian Berkowitz, Marco Dentz, Chunmiao Zheng   +8 more
wiley   +1 more source

Characterization of coal reservoir permeability evolution under thermo-mechanical coupling based on fractal theory. [PDF]

Sci Rep
Liu K, Wang Q, Zhao S, Yue W, Sun C, Xia Y.   +5 more
europepmc   +1 more source