Results 81 to 90 of about 2,411,038 (347)
Advanced Engineering Materials, EarlyView.This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig +2 more
wiley +1 more source
On the Symmetries and Conservation Laws of the Multidimensional Nonlinear Damped Wave Equations
Advances in Mathematical Physics, 2017 We carry out a classification of Lie symmetries for the (2+1)-dimensional nonlinear damped wave equation utt+fuut=div(gugrad u) with variable damping. Similarity reductions of the equation are performed using the admitted Lie symmetries of the equation ...
Usamah S. Al-Ali +3 more
doaj +1 more source
Numerical solutions of boundary value problems for variable coefficient generalized KdV equations using Lie symmetries [PDF]
Communications in nonlinear science & numerical simulation, 2013 The exhaustive group classification of a class of variable coefficient generalized KdV equations is presented, which completes and enhances results existing in the literature.
O. Vaneeva +3 more
semanticscholar +1 more source
FUNCTIONAL REALIZATIONS OF LIE ALGEBRAS AS NOETHER POINT SYMMETRIES OF SYSTEMS [PDF]
, 2017 Functional realizations of Lie algebras are applied to the problem of determining Lie and Noether point symmetries of Lagrangian systems in N dimensions, particularly in the plane.
Campoamor Stursberg, Otto-Rudwig +3 more
core +1 more source
A Group Theory Approach towards Some Rational Difference Equations
Journal of Mathematics, 2019 A full Lie point symmetry analysis of rational difference equations is performed. Nontrivial symmetries are derived, and exact solutions using these symmetries are obtained.
Mensah Folly-Gbetoula +2 more
doaj +1 more source
Lie Symmetry Analysis for the General Classes of Generalized Modified Kuramoto-Sivashinsky Equation
Journal of Function Spaces, 2021 Lie symmetry analysis of differential equations proves to be a powerful tool to solve or at least reduce the order and nonlinearity of the equation.
Rong Qi +4 more
doaj +1 more source
Dimsym and LIE: Symmetry determination packages
Mathematical and Computer Modelling, 1997 The authors describe the features of two software packages named DIMSYM and LIE. While LIE is written in LISP and runs under DOS the DIMSYM package is written in REDUCE. Both packages are dealing with Lie symmetries of differential equations. The paper includes examples and lists commands of the packages giving explainations of their functionality ...
Sherring, J., Head, A. K., Prince, G. E.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.An explicit constitutive reconstruction framework enables accurate tensile characterization of miniaturized additively manufactured specimens using only the grip‐to‐grip displacement measurements. Progressive validation through self‐consistency, analytical comparison, and inverse finite element method (iFEM) benchmarking demonstrates constitutive ...
Junqing Leng +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz +4 more
wiley +1 more source
Novel possible symmetries of S-matrix generated by Z2n-graded Lie superalgebras
Nuclear Physics BIn this paper, we explore Z2n-graded Lie (super)algebras as novel possible generators of symmetries of S-matrix. As a result, we demonstrate that a Z2n-graded extension of the supersymmetric algebra can be a symmetry of S-matrix.
Ren Ito, Akio Nago
doaj +1 more source