Results 21 to 30 of about 6,113,621 (257)

Luminescent Characteristics of Blue Phosphor CaAl2Si2O8:Eu2+ in White LED Applications by Solid State Method

open access: yesMATEC Web of Conferences, 2017
Using the solid state reaction method, we synthesize the Ca0.88Al2Si2O8:Eu2+0.12 phosphor powders at different sintering temperatures ranging from 1100 to 1500 °C.
Lee Joo Hyun   +2 more
doaj   +1 more source

Proposta de classificação para avaliar a qualidade dos dados censitários dos centenários

open access: yesRevista Latinoamericana de Población, 2022
O objetivo deste estudo consistiu em propor uma classificação que permita avaliar a qualidade da contagem censitária dos idosos centenários, a partir de determinados indicadores para contingentes populacionais regionais do mundo.
Juliana Barbosa Medeiros   +1 more
doaj   +1 more source

Revolutionising textile manufacturing: a comprehensive review on 3D and 4D printing technologies

open access: yesFashion and Textiles, 2023
An exhaustive and integrative overview of recent developments in 3D and 4D textiles based on Additive Manufacturing (AM) were provided in order to identify the current state‐of‐the‐art.
João P. Manaia   +2 more
doaj   +1 more source

Semiconductor sources: comparison between LED and LD [PDF]

open access: yes, 2022
openL'elaborato ha lo scopo di mettere a confronto le due sorgenti a semiconduttore analizzando in primo luogo il funzionamento di una giunzione PN. Si descrive poi il principio base di funzionamento per i dispositivi LED e laser discutendone la capacità
LEONARDI, FILIPPO
core  

Experimental confirmation of self-imaging effect between guided light and surface plasmon polaritons in hybrid plasmonic waveguides

open access: yesScientific Reports, 2022
We fabricated a hybrid plasmonic device using self-imaging effect between guided light and surface plasmon polaritons in the hybrid plasmonic waveguide.
Hiroyuki Okamoto   +4 more
doaj   +1 more source

Reescritura en pareja: una tarea de aprendizaje inicial de lo escrito

open access: yesCLIL Journal of Innovation and Research in Plurilingual and Pluricultural Education, 2020
En este artículo se presenta una tarea de reescritura de textos en pareja de dos niños en los momentos iniciales del proceso de aprendizaje del lenguaje escrito (entre 5 y 7 años).
Giovanna Ottin Pecchio
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld   +5 more
wiley   +1 more source

Blue light emitting diode internal and injection efficiency

open access: yesAIP Advances, 2012
A simple experimental method of light emitting diode (LED) injection efficiency (IE) determination was suggested. IE and internal quantum efficiency (IQE) calculation is an actual and difficult problem in LED science.
Ilya E. Titkov   +3 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

Quantification of collagen fiber properties in alcoholic liver fibrosis using polarization-resolved second harmonic generation microscopy

open access: yesScientific Reports, 2023
Liver fibrosis is assessed mainly by conventional staining or second harmonic generation (SHG) microscopy, which can only provide collagen content in fibrotic area.
Saya Matsuzaki   +11 more
doaj   +1 more source

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