Results 121 to 130 of about 75,661 (246)

Balancing Effective Mass and Carrier Mobility via Ga‐Induced Multi‐Band Valley Engineering in GeTe Thermoelectrics

open access: yesAdvanced Science, EarlyView.
Ga doping drives simultaneous convergence of three valence bands and formation of a midgap band in Ge0.94Bi0.06Te, enhancing the Seebeck coefficient without sacrificing carrier mobility. Lattice vibration disorder and multi‐scale defect engineering suppress lattice thermal conductivity, delivering a ZT exceeding 2.1 and enabling efficient lead‐free ...
Jianglong Zhu   +9 more
wiley   +1 more source

La parabola fieristica capodistriana

open access: yesActa Histriae
This essay sheds light on a little-explored chapter of Capodistria’s economic history: the trade fairs, which transformed the city into a commercial crossroads of the Adriatic, between the 14th and 15th centuries, due to the strategic support of Venice ...
Aleksandro Burra
doaj   +1 more source

Electrically Tunable Room‐Temperature Microwave Oscillations in GaN/AlN Triple‐Barrier Resonant Tunneling Diodes

open access: yesAdvanced Electronic Materials, EarlyView.
III‐nitride semiconductors have revolutionized optoelectronics, enabling transformative technologies such as high‐efficiency LEDs and lasers. However, their use in intersubband optoelectronics has remained limited. This work marks an important step forward by demonstrating highly coherent inter‐well resonant tunneling injection in III‐nitride ...
Jimy Encomendero   +6 more
wiley   +1 more source

Exploring the impact of GeoGebra on preservice teachers’ proficiency in teaching grade 10 parabola functions

open access: yesInterdisciplinary Journal of Education Research
This paper investigates the development of teaching proficiency among preservice teachers in Grade 10 parabola functions through the use of GeoGebra.
Abongile Ngwabe, Marc Schafer
doaj   +1 more source

Estudos gráficos das variaçôes dos coeficientes da funçâo quadrática com o auxílio do software geogebra [PDF]

open access: yes, 2013
Pretendemos, neste trabalho, observar como os estudantes estudam a variação dos coeficientes da função quadrática f (x) =ax²+ bx+c (a, b e c e a 0), com a utilização do software GeoGebra e verificar se isto facilita a compreensão do desenho gráfico ...
Lopes, José   +2 more
core  

Proximity Ferroelectricity in Compositionally Graded Structures

open access: yesAdvanced Electronic Materials, EarlyView.
We perform the finite element modeling of the polarization switching in the compositionally graded AlN‐Al1‐xScxN and ZnO‐Zn1‐xMgxO structures and reveal the switching of spontaneous polarization in the whole structure in all these systems. The coercive field to switch is significantly lower than the electric breakdown field of the unswitchable AlN and ...
Eugene A. Eliseev   +4 more
wiley   +1 more source

La representación social del guadalupanismo en el programa de televisión La Rosa de Guadalupe [PDF]

open access: yes, 2012
Este artículo presenta la representación social del guadalupanismo contenida en el programa de televisión La Rosa de Guadalupe desde la estructura del sustrato narrativo de la parábola y el intertexto del mito guadalupano.
Lázaro Altamirano, Saúl
core  

Recycled Piezoelectric Materials with Competitive Second‐Life Functional Properties

open access: yesAdvanced Electronic Materials, EarlyView.
The essential piezoelectric ceramics with heavy ecological footprints are not sufficiently recycled. This work demonstrates the feasibility of recycling different types of piezoelectric ceramics using different binders, where the terpolymer binder with relatively large permittivity facilitated superior retention of properties after recycling, promoting
Mohadeseh Tabeshfar   +2 more
wiley   +1 more source

Reinforced Concrete Section Design to Bending According to EN 1992-1-1/2004–EUROCODE2

open access: yesBulletin of the Polytechnic Institute of Jassy: Constructions, Architechture Section, 2009
In the next decades the design of the civil structures will be ruled by Eurocodes. For reinforced concrete structures the Eurocode2 will became of paramount importance to the design of the structural members.
Bogdan Roşca, P. Mihai
doaj  

Las parábolas según Paul Ricoeur y Michel Henry

open access: yesCuestiones Teológicas, 2020
El recurso a otros lenguajes que caracteriza el “giro teológico” implica para Ricoeur y Henry el caso de las parábolas. Para el primero, las parábolas constituyen expresiones límites que remiten a experiencias límites de apertura.
Roberto J. Walton
doaj  

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