Results 21 to 30 of about 1,850,574 (345)

Analytical solutions for non-linear conversion of a porous solid particle in a gas–I. Isothermal conversion [PDF]

, 1990
Analytical description are presented for non-linear heterogeneous conversion of a porous solid particle reacting with a surrounding gas. Account has been taken of a reaction rate of general order with respect to gas concentration, intrinsic reaction ...
Brem, G., Brouwers, J.J.H.
core   +7 more sources

Learning Processes in Mechanics of Structures: Allying Analytical and Numerical Approaches

Education Sciences, 2020
This paper reports pedagogical experiences and educational techniques in the field of Mechanics of Structures (Mechanical Engineering degree), resorting to computational tools. Several aspects are addressed, covering CAD (Computer-Aided Design) modelling
Fábio A. O. Fernandes, Clauber Marques, Jovani Castelan, Daniel Fritzen, Ricardo J. Alves de Sousa   +4 more
doaj   +1 more source

Analytical and numerical solutions to describe water table fluctuations due to canal seepage and time-varying recharge

Journal of Hydroinformatics, 2022
Hybrid finite analytic solution (HFAS), Galerkin's method based finite element solution (FES) and fully implicit finite difference solution (FIFDS) of one dimensional nonlinear Boussinesq equation and Analytical solution of Boussinesq equation linearized
Ashutosh Upadhyaya, Manisha M. Kankarej
doaj   +1 more source

Solution for (1+1) dimensional surface solitons in thermal nonlinear media

, 2011
Analytical solutions for (1+1)D surface fundamental solitons in thermal nonlinear media are obtained. The stationary position and the critical power of surface solitons are obtained using this analytical solutions.
Guo, Qi, Hu, Wei, Lu, Daquan, Ma, Xuekai, Yang, Zhenjun   +4 more
core   +1 more source

Theories and Analysis of Functionally Graded Beams

Applied Sciences, 2021
This is a review paper containing the governing equations and analytical solutions of the classical and shear deformation theories of functionally graded straight beams.
J. N. Reddy, Eugenio Ruocco, Jose A. Loya, Ana M. A. Neves   +3 more
doaj   +1 more source

Analytical solutions for the Rabi model

, 2012
The Rabi model that describes the fundamental interaction between a two-level system with a quantized harmonic oscillator is one of the simplest and most ubiquitous models in modern physics.
Chen, Gang, Jia, Suotang, Liang, Qifeng, Yu, Lixian, Zhu, Shiqun   +4 more
core   +1 more source

Relativistic Expansion of Magnetic Loops at the Self-similar Stage II: Magnetized outflows interacting with the ambient plasma

, 2011
We obtained self-similar solutions of relativistically expanding magnetic loops by assuming axisymmetry and a purely radial flow. The stellar rotation and the magnetic fields in the ambient plasma are neglected.
Abramowicz, Beloborodov, Blandford, Burrows, Duncan, Eiji Asano, Gill, Gourgouliatos, Gourgouliatos, Harten, Hiroyuki R. Takahashi, Hurley, Keil, Kennel, Low, Low, Low, Low, Lyutikov, Lyutikov, Meliani, Mereghetti, Mignone, Mobarry, Piran, Prendergast, Ryoji Matsumoto, Sari, Shapiro, Stone, Stone, Takahashi, Terasawa, Uchida, van Leer, Woods, Woods   +36 more
core   +1 more source

Constraining Monopoles by Topology: an Autonomous System [PDF]

, 2014
We find both analytical and numerical solutions of SU(2) Yang-Mills with an adjoint Higgs field within both closed and open tubes whose sections are spherical caps. This geometry admits a smooth limit in which the space-like metric is flat and, moreover,
Canfora, Fabrizio, Tallarita, Gianni
core   +2 more sources

A Rapid Method to Predict Beer Shelf Life Using an MS-Based e-Nose

Beverages
A rapid and efficient technique was applied, which used an electronic nose based on a mass detector (MS-based e-nose) combined with headspace solid-phase microextraction sampling and chemometric tools to classify beer samples between fresh and aged and ...
Ana Carolina de Lima, Laura Aceña, Montserrat Mestres, Ricard Boqué   +3 more
doaj   +1 more source

New chemical evolution analytical solutions including environment effects

, 2015
In the last years, more and more interest has been devoted to analytical solutions, including inflow and outflow, to study the metallicity enrichment in galaxies.
Spitoni, E.
core   +1 more source