Results 81 to 90 of about 4,000,497 (331)
Advanced Engineering Materials, EarlyView.Cubic Bézier curves are used in the synthesis of novel surface‐based metamaterials with tunable mechanical properties. Surface‐based geometries are 3D printed and tested in compression. The resulting mechanical properties are correlated to changes in the shape of the base curve, with high potential in energy absorption through the adjustment of their ...
Alberto Álvarez‐Trejo +2 more
wiley +1 more source
Relativistic new Yukawa-like potential and tensor coupling
, 2012 We approximately solve the Dirac equation for a new suggested generalized inversely quadratic Yukawa (GIQY) potential including a Coulomb-like tensor interaction with arbitrary spin-orbit coupling quantum number In the framework of the spin and ...
Hamzavi, Majid, Ikhdair, Sameer M.
core +1 more source
Microscale 3D Printed Pillars and Porous Polymeric Structures: Manufacturability and Micromechanics
Advanced Engineering Materials, EarlyView.This work demonstrates how two‐photon polymerization enables the fabrication of microscale solid and porous structures from IP‐Q, IP‐S, and IP‐PDMS resins. Combining morphological and mechanical characterization, the study provides the first systematic insights into IP‐Q mechanics and reveals how processing parameters affect structure and stiffness ...
Aikaterini Isaakidou +12 more
wiley +1 more source
The system of mixed type additive-quadratic equations and approximations
Journal of Inequalities and ApplicationsIn this article, we study the structure of a multiple variable mapping. Indeed, we reduce the system of several mixed additive-quadratic equations defining a multivariable mapping to obtain a single functional equation, say, the multimixed additive ...
Abasalt Bodaghi +2 more
doaj +1 more source
Approximate solution for quadratic Riccati differential equation
Journal of Taibah University for Science, 2017 The quadratic Riccati differential equations are a class of nonlinear differential equations of much importance, and play a significant role in many fields of applied science.
Fateme Ghomanjani, Esmaile Khorram
doaj +1 more source
, 2013 We consider a cosmological model based on a quadratic equation of state (where is the Planck density and is the cosmological density) “unifying” vacuum energy, radiation, and dark energy.
P. Chavanis
semanticscholar +1 more source
Heterostructure‐Specific Toughening Mechanisms in Metallic Laminates
Advanced Engineering Materials, EarlyView.This study highlights how various aspects of the heterostructural design of metallic laminates can be specifically tailored to achieve improved fracture resistance for damage‐tolerant designs of cyclically stressed components. Based on results from in situ fatigue crack growth tests, a comprehensive overview of the formation and development of ...
Philip Manuel Pohl +5 more
wiley +1 more source
Analysis of students' errors in solving quadratic equation word problems based on Watson's criteria
Journal Focus Action of Research MathematicThis research is motivated by the phenomenon of low student ability in solving word problems in mathematics, indicating significant challenges in understanding and applying mathematical concepts in real-life contexts. The aim of this study is to describe
Azin Taufik +2 more
doaj +1 more source
Stochastic HJB Equations and Regular Singular Points [PDF]
, 2018 IIn this paper we show that some HJB equations arising from both finite and infinite horizon stochastic optimal control problems have a regular singular point at the origin. This makes them amenable to solution by power series techniques.
Krener, Arthur J.
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The arithmetic of arithmetic Coxeter groups
, 2018 In the 1990s, J.H. Conway published a combinatorial-geometric method for analyzing integer-valued binary quadratic forms (BQFs). Using a visualization he named the "topograph," Conway revisited the reduction of BQFs and the solution of quadratic ...
Milea, Suzana +2 more
core +1 more source