Results 41 to 50 of about 310,302 (319)

Nonlinear Three-Dimensional Simulations of the Gradient Drift and Secondary Kelvin–Helmholtz Instabilities in Ionospheric Plasma Clouds

open access: yesAtmosphere, 2023
A newly developed three-dimensional electrostatic fluid model solving continuity and current closure equations aims to study phenomena that generate ionospheric turbulence.
Lujain Almarhabi   +3 more
doaj   +1 more source

Economic growth and financial development: A macroeconomic aspect

open access: yesJournal of New Economy, 2021
Economic growth and its financial component is one of the thorniest problems of economic theory and practice. The paper studies the evolution of views on the relationship between economic growth and financial development.
Alexey A. Ilyukhin   +2 more
doaj   +1 more source

Exact and Truncated Dynamics in Nonequilibrium Field Theory [PDF]

open access: yes, 2000
Nonperturbative dynamics of quantum fields out of equilibrium is often described by the time evolution of a hierarchy of correlation functions, using approximation methods such as Hartree, large N, and nPI-effective action techniques.
A. V. Ryzhov   +30 more
core   +3 more sources

Distribution Law of In Situ Stress and Its Engineering Application in Gateroad Maintenance: A Case Study

open access: yesGeofluids, 2022
In this study, the stress relief method of hollow inclusion and mathematical-statistical analysis are used to study the in situ stress distribution law of the Guotun coal mine, and the optimization strategy of roadway support is put forward.
Guangchao Zhang   +9 more
doaj   +1 more source

Density-matrix theory of the optical dynamics and transport in quantum cascade structures: The role of coherence [PDF]

open access: yes, 2009
The impact of coherence on the nonlinear optical response and stationary transport is studied in quantum cascade laser structures. Nonequilibrium effects such as pump-probe signals, the spatio-temporally resolved electron density evolution, and the ...
A. Knorr   +9 more
core   +1 more source

Studying Bone Remodelling and Tumour Growth for Therapy Predictive Control

open access: yesMathematics, 2020
Bone remodelling consists of cycles of bone resorption and formation executed mainly by osteoclasts and osteoblasts. Healthy bone remodelling is disrupted by diseases such as Multiple Myeloma and bone metastatic diseases.
Raquel Miranda   +2 more
doaj   +1 more source

Influence of Population Mobility and Migration on the Original Economic Gap and Spatial Spillover Effect in the Yangtze River Economic Belt

open access: yesRedai dili, 2021
The difference in endowment and the implementation of the gradient development strategy have promoted the large-scale cross-regional migration of China's population and have led to a close relationship between population mobility and migration and the ...
Zeng Yongming, Luo Zepingand Wang Yaoyao
doaj   +1 more source

Periodic Solutions of Random Nonlinear Evolution Inclusions in Banach Spaces [PDF]

open access: bronzeDynamic Systems and Applications
O. K Bellaou   +3 more
openalex   +2 more sources

Nonlinear Evolution of Very Small Scale Cosmological Baryon Perturbations at Recombination [PDF]

open access: yes, 2000
The evolution of baryon density perturbations on very small scales is investigated. In particular, the nonlinear growth induced by the radiation drag force from the shear velocity field on larger scales during the recombination epoch, which is originally
Fukugita M.   +6 more
core   +4 more sources

A maximum likelihood model for fitting power functions with data uncertainty: A case study on the relationship between body lengths and masses for Sciuridae species worldwide

open access: yesJournal of Asia-Pacific Biodiversity, 2016
In this report, a maximum likelihood model is developed to incorporate data uncertainty in response and explanatory variables when fitting power-law bivariate relationships in ecology and evolution. This simple likelihood model is applied to an empirical
Youhua Chen
doaj   +1 more source

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