Results 141 to 150 of about 25,416,119 (357)

All for One or One for All? A Comparative Study of Grouped Data in Mixed-Effects Additive Bayesian Networks

Mathematics
Additive Bayesian networks (ABNs) provide a flexible framework for modeling complex multivariate dependencies among variables of different distributions, including Gaussian, Poisson, binomial, and multinomial.
Magali Champion, Matteo Delucchi, Reinhard Furrer   +2 more
doaj   +1 more source

The winner takes it all:how semelparous insects can become periodical

, 2020
The aim of this short note is to give a simple explanation for the remarkable periodicity of Magicicada species, which appear as adults only every 13 or 17 years, depending on the region.
Mathematical Modeling, Planque, R., Diekmann, O., Sub Mathematical Modeling, Diekmann, Odo, Planqué, Robert   +5 more
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Navier–Stokes Equation in a Cone with Cross-Sections in the Form of 3D Spheres, Depending on Time, and the Corresponding Basis

Mathematics
The work establishes the unique solvability of a boundary value problem for a 3D linearized system of Navier–Stokes equations in a degenerate domain represented by a cone.
Muvasharkhan Jenaliyev, Akerke Serik, Madi Yergaliyev   +2 more
doaj   +1 more source

Effects of MgCl2 supplementation on blood parameters and kidney injury of rats exposed to CCl4

Open Life Sciences, 2016
The purpose of this study was to evaluate the beneficial effects of magnesium (Mg) supplementation upon carbon tetrachloride (CCl4) toxicity. Our study was carried out on 24 Wistar male rats divided into 4 batches.
Mbarki Sakhria, Dhibi Sabah, Bouzenna Hafsia, Elfeki Abdelfettah, Hfaiedh Najla   +4 more
doaj   +1 more source

Expansions and Dimensions

, 2016
In this thesis, we consider the Hausdorff dimension of the set of points with multiple codings. In order to find the dimension of this set, we find some new ideas to address this problem. These ideas are from fractal geometry and dynamical systems.
Mathematical Modeling, Jiang, K., Sub Mathematical Modeling   +2 more
core  

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Homotopy-based methods for fractional differential equations

, 2017
The intention of this thesis is two-fold. The first aim is to describe and apply, series-based, numerical methods to fractional differential equation models.
Mathematical Modeling, Sub Mathematical Modeling, Ates, I.   +2 more
core  

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Henri Poincare, a scientific biography, by Jeremy Gray [PDF]

, 2016
Verhulst, F., Mathematical Modeling, Sub Mathematical Modeling   +2 more
core   +1 more source