Results 21 to 30 of about 29,255 (211)

Advanced Atomic Layer Deposition Technologies for Micro-LEDs and VCSELs

open access: yesNanoscale Research Letters, 2021
In recent years, the process requirements of nano-devices have led to the gradual reduction in the scale of semiconductor devices, and the consequent non-negligible sidewall defects caused by etching.
Yen-Wei Yeh   +10 more
doaj   +1 more source

Exploring Cost and Environmental Implications of Optimal Technology Management Strategies in the Street Lighting Industry

open access: yesResources, Conservation & Recycling: X, 2020
The market for solid-state lighting (SSL) systems has expanded 40-fold in installed lamps since 2001. At the same time, systems which preserve materials over time and promote material reuse are getting increasing attention in light of calls for reducing ...
Rachel Dzombak   +2 more
doaj   +1 more source

Solar PV Lighting and Studying after Sunset: Analysis of Micro-benefits in Off-grid Rural Ghana [PDF]

open access: yes, 2013
Solar PV light provides school children living in off-grid rural communities the opportunity to have clean and bright lighting to study after sunset. On the contrary, lighting provided from poor sources can pollute and adversely affect human eyes during ...
G.Y. Obeng, George Y. , Obeng
core   +1 more source

Study of melting transition on biphenyl by Raman scattering

open access: yesAIP Advances, 2019
Vibrational properties of the biphenyl at around the melting transition temperature are investigated by Raman scattering. Nearly all the vibrational modes exhibit anomalous changes on the frequency, width, and intensity at around the melting temperature.
Hong-Ying Mei   +6 more
doaj   +1 more source

Industrial Lighting [PDF]

open access: yesScientific American, 1913
n ...
openaire   +3 more sources

A multi-variable building energy optimization: assessing the role of energy efficient lighting technology in changing the optimal window-to-wall ratio in an office building

open access: yesInternational Journal of Sustainable Energy, 2022
Daylight harvesting is a passive strategy that helps to increase occupants’ productivity, mental and physical health as well as spatial quality and energy performance.
Zahra Zolfaghari, James Jones
doaj   +1 more source

Design and effect study of stepped reflective cup for miner’s lamp

open access: yesMeikuang Anquan, 2022
A stepped reflective cup is designed to improve the industry situation that it is difficult to have both lighting angle and lighting uniformity of miner’s lamp.
ZHANG Yujia
doaj   +1 more source

VitaLight—Light to Support Vital Signs

open access: yesProceedings, 2020
The spectral composition of light has a significant influence on human wellbeing, emotion and health. Natural sunlight is often considered as the ideal light source in this regard.
Stefan Schantl   +2 more
doaj   +1 more source

Developing energy efficient and smart lighting education in Vietnam and Myanmar [PDF]

open access: yes, 2023
Artificial lighting is a basic need for human wellbeing and performance when there is no access to daylight. Large populations, mostly in rural areas, depend on traditional biomass-based lighting techniques whereas in developing countries with ...
Kovab, Matej   +7 more
core   +1 more source

Six lamp stands at Luxor Museum, first time publishing [PDF]

open access: yesLuxor International Journal of Archaeological Studies, 2019
Ancient Egyptians have known the metal industry since ancient times, extracting and forming and making various tools, and when Christianity entered Egypt, it invested those inherited industrial methods in the manufacture of high-value church tools ...
Salama Hassan
doaj   +1 more source

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