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Mostrando ítems 131-140 de 633
Artículo
Correlation between microstructure and temperature dependence of magnetic properties in Fe 60 Co 18 ( Nb , Zr ) 6 B 15 Cu 1 alloy series
(AIP Publishing, 2009-05-14)
Temperature dependence of magnetic properties of nanocrystalline Fe60Co18Cu1B15Nb6−xZrx (x =0, 3, 6) alloys has been studied at different stages of devitrification. Transmission electron microscopy shows nanocrystals of ...
Artículo
¿Qué investigación didáctica en el aula de física se publica en España?: una revisión crítica de la última década para el caso de Educación Secundaria
(Revista Enseñanza de las Ciencias, 2018)
Se presenta un estudio exploratorio y descriptivo sobre la investigación didáctica publicada en España durante la última década relativa a la enseñanza de la física en educación secundaria. Al centrar la atención en aquellos ...
Artículo
Bandage contact lens use after photorefractive keratectomy
(Wolters Kluwer Health, 2019-08)
The use of a bandage contact lens (BCL) immediately after photorefractive keratectomy (PRK) results in less pain. This review analyzed which BCL is most effective in decreasing pain immediately after PRK and evaluated the ...
Artículo
A unified approach to describe the thermal and magnetic hysteresis in Heusler alloys
(American Institute of Physics Publising LLC, 2016)
Different excitations, like temperature, magnetic field, or pressure, can drive a martensitic transition in Heusler alloys. Coupled phenomena in these materials lead to interesting magnetocaloric and barocaloric effects ...
Artículo
Barriers to Accessing Eye Health Services in Suburban Communities in Nampula, Mozambique
(MDPI, 2022)
Globally, an estimated 2.2 billion people are visually impaired (VI) or blind, and a large proportion (90%) of those affected live in low- and middle-income countries (LMICs), where access to eye health services is limited. ...
Artículo
Thermal and Microstructural Dependence of the Initial Permeability of Co60Fe18Nb6(B,Cu)16 Alloys
(Elsevier, 2007)
The thermal and microstructural dependence of the initial permeability of Co60Fe18Nb6B16-yCuy (y = 0, 1) alloys have been studied. The comparison of kinetics and microstructural data of the two compositions indicate the ...
Artículo
Anisotropy field distribution in soft magnetic Hitperm alloys submitted to different field annealing processes
(Elsevier, 2016)
The magnetic anisotropy field distribution is discussed for Hitperm alloys annealed under different field conditions leading to different induced magnetic anisotropies: zero (ZF), transversal (TF), and longitudinal (LF) ...
Artículo
Seasonal induction of cluster roots in Embothrium coccineum J.R. Forst. & G. Forst. in the field: factors that regulate their development
(Instituto de Investigaciones Agropecuarias, INIA, Chile, 2010)
Embothrium coccineum J.R. Forst. & G. Forst. (Proteaceae) is a tree that grows successfully in nutrient poor soils of southern Chile at full sunlight. Under these conditions it develops cluster roots (CR). However, the ...
Artículo
An investigation of silicon carbide-water nanofluid for heat transfer applications
(AIP Publishing, 2009)
Thermal conductivity and mechanical effects of silicon carbide nanoparticles uniformly dispersed in water were investigated. Mean size of SiC particles was 170 nm with a polydispersity of 30% as determined from small-angle ...
Artículo
Environmentally friendly monolithic highly-porous biocarbons as binder-free supercapacitor electrodes
(De Gruyter, 2018)
A simple, low-cost and environmentally friendly method has been used to obtain highly porous biomorphic carbon monoliths with a good combination of interconnected macro-, meso- and microporosity, and good electrical ...