6 results for “illuminance”

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Research ArticleOpen accessEvery word in the titleILLUMINANCE EVALUATION AND ASSESSMENT AT THREE ELEMENTARY SCHOOLSAhmed Cherif Megri, Yao Yu, Akeel Sobers, Alyssa CooperA simplified model for illuminance prediction has been developed to estimate the indoor level of lighting under artificial lighting. As well, illuminance in several locations of three schools has been measured under several conditions: Blinds up/lights on, blinds up/lights off, blinds down/lights on, blinds down/lights off. The experimental data of the case &#34blinds down/lights on&#34 has been compared to the … …American Journal of Engineering and Applied Sciences, Vol. 7, Issue 1 · 27 Mar 2014 · 7,855 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsThermal Comfort Assessment and Optimization of Environmental Factors by Using Taguchi MethodA. R. Ismail, M. R.A. Rani, Z. K.M. Makhbul et al.Problem statement: The objective of this study was to determine the dominance effects of environmental factors such as Illuminance (lux), relative humidity (%) and WBGT (°C) on the operators’ productivity at Malaysian automotive industry. Approach: One automotive parts assembly factory had been chosen as a subject for the study. The subjects were workers at the assembly section of the factory. … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 7,188 accessesView PDF Cite

Literature ReviewOpen accessIn the abstractRetrofitting the Electric Lighting and Daylighting Systems to Reduce Energy Use in Buildings: A Literature ReviewMarie-Claude Dubois, Fabio Bisegna, Niko Gentile et al.This paper presents a literature review about energy-efficient retrofit of electric lighting and daylighting systems in buildings. The review, which covers around 160 research articles, addresses the following themes: (1) retrofitting electric lighting in buildings, (2) electric lighting energy use and saving potential and (3) lighting retrofit strategies. The retrofit strategies covered in the review are: replacement of lamp, ballast … …Energy Research Journal, Vol. 6, Issue 1 · 10 Aug 2015 · 14,592 accessesView PDF Cite

Research ArticleOpen accessIn the abstractHuman Face Detection and Recognition using Web-CamPetcharat Pattanasethanon, Charuay SavithiProblem statement: The illuminance insensitivity that reflects the angle of human facial aspects occurs once the distance between the object and the camera is too different such as animated images. This has been a problem for facial recognition system for decades. Approach: For this reason, our study represents a novel technique for facial recognition through the implementation of Successes Mean … …Journal of Computer Science, Vol. 8, Issue 9 · 17 Aug 2012 · 8,271 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEmpirical Validation of Daylight Simulation Tool with Physical Model MeasurementYaik-Wah Lim, Mohd. Hamdan Ahmad, Dilshan Remaz OssenProblem statement: In recent years, daylighting simulation tools have been increasingly used by many architects, engineers and researchers to evaluate the day lighting performances of building design. Most of these tools employ CIE sky models for simulation. However, the accuracy and applicability of these tools for tropical sky are doubtable. The aim of this study was to validate the computer … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 8,899 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAssessment of Thermal Comfort: A Study at Closed and Ventilated Call CentreA. R. Ismail, N. Jusoh, N. K. Makhtar et al.Problem statement: The aims of study were to investigate the effects of environmental factors including the human physiology and thermal comfort during the cycle of process works in workplace. Approach: The selected production line was handling the restoration of trouble report. The environment examined was the relative humidity (%), wind speed (m sec-1), illuminance (lux) and air temperature (°C) of … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,624 accessesView PDF Cite