Results 41 to 50 of about 1,078,834 (211)

Temporal Model for Ship Twin-Propeller Jet Induced Sandbed Scour

Journal of Marine Science and Engineering, 2019
This research paper proposes the use of empirical equations to estimate the temporal maximum scour that is induced by twin-propeller ( ε t w i n = Ω t [ l n ( t ) ] Γ t ) when acting over non-cohesive bed ...
Yonggang Cui, Wei Haur Lam, Tianming Zhang, Chong Sun, Desmond Robinson, Gerard Hamill   +5 more
doaj   +1 more source

An Empirical Model for Protostellar Collapse [PDF]

The Astrophysical Journal, 2001
To appear in Astrophysical Journal, Jan 20th, 2001. 18 pages incl.
Whitworth, A. P., Ward-Thompson, D.
openaire   +2 more sources

A Generalized Empirical Model for Velocity Deficit and Turbulent Intensity in Tidal Turbine Wake Accounting for the Effect of Rotor-Diameter-to-Depth Ratio

Energies
Commercial scale tidal stream turbines (TST) are expected to be deployed in shallow water where the depth varies from 1.5 to 3 turbine diameters. In this study, numerical simulation is conducted at realistic hydrodynamic conditions of potential tidal ...
Kabir Bashir Shariff, Sylvain S. Guillou
doaj   +1 more source

Fast and Accurate Temperature-Dependent Current Modeling of HBTs Using the Dimension Reduction Method

IEEE Access, 2019
Empirical models have been widely and successfully used in device modeling in the past few decades. However, they are becoming increasingly intricate to accurately capture the complex thermal effects in semiconductor devices.
Wenrui Hu, Andong Huang, Haorui Luo, Yong-Xin Guo   +3 more
doaj   +1 more source

Estimation of Potential Evapotranspiration in the Yellow River Basin Using Machine Learning Models

Atmosphere, 2022
Potential evapotranspiration (PET) is an important input variable of many ecohydrological models, but commonly used empirical models usually input numerous meteorological factors.
Jie Liu, Kunxia Yu, Peng Li, Lu Jia, Xiaoming Zhang, Zhi Yang, Yang Zhao   +6 more
doaj   +1 more source

A General Empirical Model of Hedging [PDF]

Journal of Risk and Financial Management, 2012
In this paper, we treat output as a decision variable. Moreover, we employ a general form of basis risk. Furthermore, we relax the statistical-independence assumption between the spot price and basis risk.
Moawia Alghalith, Ricardo Lalloob
openaire   +2 more sources

Sexually antagonistic co-evolution: a model and an empirical test

, 2010
Models reveal that sexually antagonistic co-evolution exaggerates female resistance and male persistence traits. Here we adapt an established model by including directional sexual selection acting against persistence.
Gilburn, Andre, Hoyle, Andrew
core   +1 more source

An Experimental Direct Model for the Sky Temperature Evaluation in the Mediterranean Area: A Preliminary Investigation

Energies
Since the beginning of the 20th century, many studies have focused on the possibility of considering the sky as a body characterized by an apparent temperature, and several correlations to quantify the apparent sky temperature have been proposed. However,
Edoardo De Cristo, Luca Evangelisti, Claudia Guattari, Roberto De Lieto Vollaro   +3 more
doaj   +1 more source

Empirical curvelet transform based deep DenseNet model to predict NDVI using RGB drone imagery data [PDF]

Predicting accurately the Normalized Difference Vegetation Index (NDVI) trends from RGB images are essential to monitor crops and identify issues related to plant diseases, and water shortages.
Uddin, Md Palash, Abdulla, Shahab, Alabdally, Hussein, Ali, Mumtaz, Labban, Abdulhaleem H., Diykh, Mohammed, Jamei, Mehdi, Farooque, Aitazaz Ahsan   +7 more
core   +1 more source

Empirical assessment of advantages and disadvantages of model transformation languages

, 2023
Context: Model-driven software engineering envisages the use of model transformations to evolve models. Model transformation languages, domain-specific languages developed for this task, are touted with many benefits over general-purpose languages ...
Höppner, Stefan
core   +1 more source