Results 101 to 110 of about 75,661 (246)
Advanced Science, EarlyView.A universal laser absorption model based on spectral integration enables the design of ultrabroadband dielectric multilayer reflectors for laser protection. The model reveals exponential decay of absorption characterized by two coefficients, and a design that prioritizes short‐wavelength reflection minimizes heating.
Yukang Feng +8 more
wiley +1 more source
Consideraciones para el uso del geogebra en ecuaciones, inecuaciones, sistemas y funciones [PDF]
, 2013 Entre las principales dificultades en la enseñanza y el aprendizaje de la matemática se encuentran: no penetración en sus fundamentos, la escasa atención a la creatividad de los escolares y el inadecuado uso de software.
Hernández, Carlos
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Advanced Science, EarlyView.This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong +7 more
wiley +1 more source
Ironía y parábola en Azul... , de Rubén Darío. [PDF]
Sin ...
Coloma González, Fidel
core +1 more source
Utilizaçâo de ferramentas de desenho geométrico para o ensino de cônicas [PDF]
, 2013 Nesta oficina apresenta-se um método para construção do esboço das cônicas (elipse, hipérbole e parábola) partindo-se da definição geométrica destas curvas.
Ferreira, Juracélio
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Advanced Science, EarlyView.Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma +4 more
wiley +1 more source
Comunicación y metáfora en Ortega [PDF]
, 2009 Se propone el estudio de la metáfora en Ortega y su lugar dentro de la teoría orteguiana de la comunicación. Ortega, en una primera etapa de su pensamiento, y probablemente por influencia de Nietzsche, concede a la metáfora un papel muy importante.
Salas Ortueta, Jaime de
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Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys
Advanced Science, EarlyView.This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin +11 more
wiley +1 more source
Resolución de ecuaciones con un soporte geométrico: la obra de Omar Jayyam [PDF]
, 2015 El trabajo que se presenta es parte de una investigación en proceso, en la cual se concibe la Historia de la Matemática como un recurso didáctico. En este caso se aborda el asunto de la resolución de ecuaciones cúbicas, específicamente lo encontrando en ...
Arcos, José Ismael, Micelli, Mónica
core
Advanced Science, EarlyView.The unique lamellar structure of the eutectic alloy promotes selective oxidation of Al initially, while lattice distortion‐induced diffusion suppression slows oxide growth during steady state. Combining these strategies, a Multi‐Principal Element Alloy with excellent oxidation resistance at 1200℃ was designed.
Xinyu Zhang +6 more
wiley +1 more source