Results 111 to 120 of about 6,294 (295)
Spatial dependence of the luminous flux density of different light bulbs
, 2014 V diplomskem seminarju obravnavamo gostoto svetlobnega toka svetil različnih oblik. Razvili smo merilni sistem in z njim izvedli eksperiment, s katerim izmerimo gostoto svetlobnega toka v odvisnosti od oddaljenosti od svetila in prostorsko porazdelitev ...
Svetina, Taja
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Information &Functional Materials, EarlyView.This study develops a facile multi‐step coating protocol to enhance the humidity stability of the Eu2+‐doped UCr4C4 green phosphor RbLi(Li3SiO4)2: Eu2+ (RLSO: Eu2+), successfully overcoming the typical trade‐off between luminescence intensity and stability.
Haoduo Yu +3 more
wiley +1 more source
Model Predictive Control for Luminous Flux Tracking in Light-Emitting Diodes
, 2016 Luminous flux tracking and junction temperature stress minimization are typical objectives in the regulation of high-brightness light-emitting diodes (LEDs). In this brief, a solution based on a model predictive controller approach is proposed. The state
Baccari S
core +1 more source
Impact of a Modular Escape Game on Undergraduate and Continuing Dental Education
Journal of Dental Education, EarlyView.ABSTRACT Purpose This study aimed to assess the educational impact and perceived relevance of a pedagogical escape game designed to reinforce key concepts related to dental biomaterials. Methods In 2023, a modular escape game comprising four mandatory stations and one bonus station was developed and integrated into two pedagogical settings: a ...
Sara Bergman +24 more
wiley +1 more source
Bilateral comparison of luminous flux using lamps as transfer standards (EURAMET.PR-K4.2)
, 2019 International audienceThe Laboratoire National de Métrologie et d'Essais, LNE-CNAM (France) and The National Institute of Metrology, RCM LIPI (Indonesia) agreed in December 2013 to conduct a bilateral comparison on luminous flux using a group of lamps as
Dubard, J, Obein, Gaël, Suryani, D
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Journal of Raman Spectroscopy, EarlyView.An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello +2 more
wiley +1 more source
The paper presents the results of research into the luminous flux conservation factors of commercial samples of light-emitting diode lamps for general lighting during tests of up to 6.000 and 10.000 hours, as well as the results of their service life ...
Guba, L. +4 more
core +1 more source
Journal of the Science of Food and Agriculture, EarlyView.Abstract BACKGROUND Preharvest light management is increasingly used to enhance yield and fruit quality in soilless systems, yet its effects on unripe melon fruits remain poorly understood. This study evaluated the impact of supplemental red–blue light‐emitting diode (LED) lighting applied during cultivation in a closed‐cycle hydroponic system on ...
Onofrio Davide Palmitessa +7 more
wiley +1 more source
Optical Fiber as a Basis for Creation Light Sensor
Доклады Белорусского государственного университета информатики и радиоэлектроникиThe possibility of using telecommunication optical fiber as a basis for creating a light sensor is shown. The light sensor is a section of optical fiber wound on a cylindrical base turn to turn.
A. O. Zenevich +3 more
doaj +1 more source
Comparison of luminous flux maintenance methods, continuous vs. on-off cycles
, 2021 This paper will present preliminary results from a research project comparing two methods for estimating the lifetime of LED products, LM-84 (6000 h test) and the new EU endurance test (3600h test) including on/off cycling, that will be required by EU ...
Thorseth, Anders +2 more
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