Results 31 to 40 of about 4,654,918 (291)
The numerical simulation of turbulence [PDF]
, 2009 In this contribution, I give an overview of the various approaches toward the numerical modelling of turbulence, particularly, in the interstellar medium. The discussion is placed in a physical context, i. e. computational problems are motivated from basic physical considerations.
openaire +2 more sources
Geocarto InternationalMost U-shaped convolutional neural network (CNN) methods have the problems of insufficient feature extraction and fail to fully utilize global/multi-scale context information, which makes it difficult to distinguish similar objects and shadow occluded ...
Ning Li, Xiaopeng Yu, Miao Yu
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Improved Bayesian Network-Based Risk Model and Its Application in Disaster Risk Assessment
International Journal of Disaster Risk Science, 2018 The application of Bayesian network (BN) theory in risk assessment is an emerging trend. But in cases where data are incomplete and variables are mutually related, its application is restricted. To overcome these problems, an improved BN assessment model
Ming Li, Mei Hong, Ren Zhang
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Threshold Dynamics of a Huanglongbing Model with Logistic Growth in Periodic Environments
Abstract and Applied Analysis, 2014 We analyze the impact of seasonal activity of psyllid on the dynamics of Huanglongbing (HLB) infection. A new model about HLB transmission with Logistic growth in psyllid insect vectors and periodic coefficients has been investigated.
Jianping Wang +3 more
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, 2012 Numerical Simulation - from Theory to Industry is the edited book containing 25 chapters and divided into four parts. Part 1 is devoted to the background and novel advances of numerical simulation; second part contains simulation applications in the ...
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Steel Surface Defect Detection Algorithm Based on Improved YOLOv8 Modeling
Applied SciencesDetecting steel defects is a vital process in industrial production, but traditional methods suffer from poor feature extraction and low detection accuracy.
Miao Peng, Sue Bai, Yang Lu
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Numerical simulation of flow over a rough bed [PDF]
, 2007 This paper presents results of a direct numerical simulation (DNS) of turbulent flow over the rough bed of an open channel. We consider a hexagonal arrangement of spheres on the channel bed.
Williams, J.J.R. +2 more
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Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligandâbinding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
A 0.6-meter resolution canopy height model for the contiguous United States
Scientific DataAbove-ground vertical structure is a critical variable for ecosystem monitoring, carbon accounting, and land management. However, the high cost and limited coverage of airborne lidar hinder its widespread application.
Scott L. Morford +6 more
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Symplecticity-preserving prediction of Hamiltonian dynamics by generalized kernel interpolation
Mathematical and Computer Modelling of Dynamical SystemsIn this work, a kernel-based surrogate for integrating Hamiltonian dynamics that is symplectic by construction and tailored to large prediction horizons is proposed.
Robin Herkert +2 more
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