Results 61 to 70 of about 465,894 (329)

Characterising and Testing Deep UV LEDs for Use in Space Applications

open access: yes, 2015
Deep ultraviolet (DUV) light sources are used to neutralise isolated test masses in highly sensitive space-based gravitational experiments. An example is the LISA Pathfinder charge management system, which uses low-pressure mercury lamps.
Baird, J. T.   +3 more
core   +1 more source

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk   +5 more
wiley   +1 more source

Salsovia: chronological landmarks [PDF]

open access: yesPeuce, 2012
This paper presents lamps and selected vessels from Mahmudia. The pieces discussed come both from recent excavations at the site of Salsovia and from a collection held by the village school.
Florin TOPOLEANU   +2 more
doaj  

Grafitos sobre cerámica del puticuli de la calle Cabo Verde de Mérida : (España) : nuevos datos sobre la cotidianidad Emeritense en el siglo I d. C.

open access: yesEspacio, Tiempo y Forma. Serie II, Historia Antigua, 2012
Damos a conocer un repertorio de grafitos grabados sobre cerámica y procedentes de una reciente intervención arqueológica en la capital de la Lusitania, Augusta Emerita (Mérida, España).
Luis Ángel Hidalgo Martín   +2 more
doaj   +1 more source

Daylight Spectrum Index: A New Metric to Assess the Affinity of Light Sources with Daylighting [PDF]

open access: yes, 2018
The current scenario of colorimetry shows a wide variety of different metrics which do not converge in the assessment of the color rendering of light sources.
Acosta García, Ignacio Javier   +2 more
core   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

Reading Analysis for Barcode Scanner With Interference from LED-Based Lighting

open access: yesIEEE Access, 2019
This paper addresses reading failures of a barcode scanner interfered by light emitting diode (LED) lamps. It quantifies the reading performance in terms of timing signal-to-interference ratio (TSIR), in particular, as a function of modulation depth and ...
Xiong Deng   +3 more
doaj   +1 more source

Luminous Intensity for Traffic Signals: A Scientific Basis for Performance Specifications [PDF]

open access: yes, 1999
Humnan factors experiments on visual responses to simulated traffic signals using incandescent lamps and light-emitting diodes are ...
Bierman, Andrew   +7 more
core  

Study of led lamps technologies impact on the utility [PDF]

open access: yes, 2016
With the growing interest in the issue of reducing powerconsumption in electricity applications, energy-saving devises and the problem of their operation gains more attention. The increase in the utilization of energy-saving lamps, especially LED lamps,
Ferreira, Maria Judite   +3 more
core   +1 more source

Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors

open access: yesAdvanced Functional Materials, EarlyView.
This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu   +3 more
wiley   +1 more source

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