Results 101 to 110 of about 11,306,054 (330)
High-order cyclo-difference techniques: An alternative to finite differences [PDF]
The summation-by-parts energy norm is used to establish a new class of high-order finite-difference techniques referred to here as 'cyclo-difference' techniques.
Carpenter, Mark H., Otto, John C.
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Advanced Engineering Materials, EarlyView.The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos +11 more
wiley +1 more source
Improved finite-difference vibration analysis of pretwisted, tapered beams [PDF]
An improved finite difference procedure based upon second order central differences is developed. Several difficulties encountered in earlier works with fictitious stations that arise in using second order central differences, are eliminated by ...
Kaza, K. R. V., Subrahmanyam, K. B.
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Advanced Engineering Materials, EarlyView.A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli +9 more
wiley +1 more source
Ingeniare: Revista Chilena de Ingeniería, 2008 Una respuesta a las falencias de los métodos tradicionales de evaluación de proyectos de inversión corresponde a la metodología de "Opciones Reales" que proviene del análisis de opciones sobre instrumentos financieros desarrollado en la década de los 70.
Sebastián Otero G +2 more
doaj
sparseHessianFD: An R Package for Estimating Sparse Hessian Matrices
Journal of Statistical Software, 2017 Sparse Hessian matrices occur often in statistics, and their fast and accurate estimation can improve efficiency of numerical optimization and sampling algorithms.
Michael Braun
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Thermoelectric Modules Incorporating MgAgSb and Mg3(Sb,Bi)2 Synthesized Using a Melting Method
Advanced Engineering Materials, EarlyView.A scalable synthesis method for a thermoelectric material of MgAgSb is established. A thermoelectric power module of MgAgSb/Mg3(Sb,Bi)2 is fabricated, showing the conversion efficiency of 7.4% at ΔT = 315 K. The performance is comparable to conventional Bi2Te3 modules when they are operated with an air‐cooled heat exchanger.
Kazuo Nagase +8 more
wiley +1 more source
Spreadsheets in Education, 2016 This paper presents the implementation of numerical and analytical solutions of some of the classical partial differential equations using Excel spreadsheets.
Mark A Lau
doaj
A Mathematical Model of a Novel 3D Fractal-Inspired Piezoelectric Ultrasonic Transducer
Sensors, 2016 Piezoelectric ultrasonic transducers have the potential to operate as both a sensor and as an actuator of ultrasonic waves. Currently, manufactured transducers operate effectively over narrow bandwidths as a result of their regular structures which ...
Sara Canning +2 more
doaj +1 more source
Numerical resolution of some BVP using Bernstein polynomials
, 2005 In this work we present a method, based on the use of Bernstein polynomials, for the numerical resolution of some boundary values problems. The computations have not need of particular approximations of derivatives, such as finite differences, or ...
Argentini, Gianluca
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