Results 31 to 40 of about 10,821,497 (300)

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

High growth temperature for AlN by jet stream gas flow metalorganic vapor phase epitaxy

open access: yesScientific Reports, 2023
Deep ultraviolet light-emitting diodes have attracted considerable attention for realizing virus inactivation applications. The UV-LEDs use the AlN underlying layer and the plane sapphire substrate.
Kentaro Nagamatsu   +5 more
doaj   +1 more source

Flexibility between market-led and government-led economies [PDF]

open access: yes, 2007
The 1997-98 East Asia financial crisis has raised doubts over the roles of two economic-systems: market-led and government-led economies. This paper deliberates on the two opposing economic systems: the choice of which are continually debated.
Kasipillai, Jeyapalan   +1 more
core   +1 more source

Scalability of Atomic-Thin-Body (ATB) Transistors Based on Graphene Nanoribbons

open access: yes, 2010
A general solution for the electrostatic potential in an atomic-thin-body (ATB) field-effect transistor geometry is presented. The effective electrostatic scaling length, {\lambda}eff, is extracted from the analytical model, which cannot be approximated ...
Koester, Steven J.   +4 more
core   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Fabrication of Mie-resonant silicon nanoparticles using laser annealing for surface-enhanced fluorescence spectroscopy

open access: yesMicrosystems & Nanoengineering
Silicon nanostructures with unique Mie resonances have garnered considerable attention in the field of nanophotonics. Here, we present a simple and efficient method for the fabrication of silicon (Si) nanoparticle substrates using continuous-wave (CW ...
Tatsuya Fukuta   +3 more
doaj   +1 more source

The new design and technological solutions for the led modules for retrofit lamps

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2016
The authors propose fundamentally new design-technological solutions for compact volumetric mirrorized LED modules with increased power. Test samples of volumetric light-effective LED light effective modules with a power of 10–15 W and light output of ...
B. M. Борщов   +9 more
doaj   +1 more source

Rapid, high-sensitivity detection of biomolecules using dual-comb biosensing

open access: yesScientific Reports, 2023
Rapid, sensitive detection of biomolecules is important for biosensing of infectious pathogens as well as biomarkers and pollutants. For example, biosensing of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is still strongly required for ...
Shogo Miyamura   +14 more
doaj   +1 more source

Early childhood portfolios as a tool for enhancing learning during the transition to school [PDF]

open access: yes, 2009
From 2005-2008 Mangere Bridge Kindergarten in New Zealand carried out a Centre of Innovation research project exploring the transition between early childhood education and school.
Carr, Margaret   +4 more
core  

A Molecular-Rotor Device for Nonvolatile High-Density Memory Applications [PDF]

open access: yes, 2010
A novel memory device based on an electrically driven molecular rotor was fabricated and demonstrated to have bistable switching effects. The device showed an on/off ratio of approximately 10^4, a read window of about 2.5 V, and retention performance of
Benitez, Diego   +7 more
core   +1 more source

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