Results 131 to 140 of about 430,734 (311)

A Class of Nonlinear Stochastic Volatility Models and Its Implications on Pricing Currency Options [PDF]

This paper proposes a class of stochastic volatility (SV) models which offers an alternative to the one introduced in Andersen (1994). The class encompasses all standard SV models that have appeared in the literature, including the well known lognormal ...
Jun Yu, Zhenlin Yang, Xibin Zhang
core  

Mathematical Models of Papermaking

, 2001
The mathematical model of wood drying based on detailed transport phenomena considering both heat and moisture transfer have been offered in article.
Buikis, A., Salminš, A., Cepitis, J., Reinfelds, A., Ancitis, A., Kalis, H.   +5 more
core   +1 more source

Treed distributed lag nonlinear models. [PDF]

Biostatistics, 2022
Mork D, Wilson A.
europepmc   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Bootstrap Testing in Nonlinear Models [PDF]

When a model is nonlinear, bootstrap testing can be expensive because of the need to perform at least one nonlinear estimation for every bootstrap sample.
Russell Davidson, James G. MacKinnon
core  

A discrete homotopy perturbation method for non-linear Schrodinger equation [PDF]

Computational Ecology and Software, 2015
A general analysis is made by homotopy perturbation method while taking the advantages of the initial guess, appearance of the embedding parameter, different choices of the linear operator to the approximated solution to the non-linear Schrodinger ...
H. A. Wahab, Khalid Usman, Muhammad Naeem, et al.   +2 more
doaj  

Human genotype-to-phenotype predictions: Boosting accuracy with nonlinear models. [PDF]

PLoS One, 2022
Medvedev A, Mishra Sharma S, Tsatsorin E, Nabieva E, Yarotsky D.   +4 more
europepmc   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Nonlinear Models of Thermo-Viscoelastic Materials. [PDF]

Materials (Basel), 2021
Giorgi C, Morro A.
europepmc   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source