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29 articles for “Light Intensity”
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Research ArticleOpen accessIn the abstractDesign of an Automatic Umbrella Actuated through Water and Temperature SensorsMeher Dev Gudela, Atharv Kulkarni, Abhishek Dhotre, Kshitiz ShrimaliThe aim of this thesis is to make a smart umbrella which can reduce human effort due to its functionality and can target the market due to its unique design, is really important in modern society at risk of rainfall and wind without coverage in place. The purpose of this project is to make such an umbrella that is really … …Journal of Mechatronics and Robotics, Vol. 4, Issue 1 · 29 Sep 2020 · 17,501 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Ecological Factors on Snails Infection by Schistosoma japonicum in Central Sulawesi, IndonesiaSutrisnawati Mardin, Teguh Wahju Sardjono, Loeki Enggar Fitri et al.In Central Sulawesi, Napu valley and Lindu Lake (Indonesia), Schistosoma are spread in the host snails (Oncomelania hupensis lindoensis). In the present work, the influence of ecological factors on the spreading of Schistosoma japonicum cercariae infection in the snails were analyzed. The Oncomelania hupensis lindoensis snails were collected and analyzed by ring method in the form of graphs and matrices. … …American Journal of Environmental Sciences, Vol. 14, Issue 2 · 5 Apr 2018 · 8,495 accessesView PDFCite
Research ArticleOpen accessIn the abstractModel Identification and Wall-Plug Efficiency Measurement of White LED ModulesAhmed Zurfi, Jing ZhangIn this study, an experimental method is developed to measure the Wall-Plug efficiency of white LED modules without using any apparatus or sensors to measure the intensity of light. The tested LED module consists of a white LED chip-on-board affixed on a heatsink. The proposed method is mainly based on thermal and electrical models of the LED module. Measurements of … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 2 · 15 Jun 2016 · 8,296 accessesView PDFCite
Research ArticleOpen accessIn the abstractCarbon Nanodots from Frying Oil as Catalyst for Photocatalytic Degradation of Methylene Blue Assisted Solar Light IrradiationMahardika Prasetya Aji, Pradita Ajeng Wiguna, Siti Aisyah Suciningtyas et al.Carbon nanodots (C-Dots) of frying oil could be a photocatalyst for the degradation of methylene blue solution with assisted solar light irradiation. C-Dots of frying oil were resulted from the heating process at T = 300C for 2 h. C-Dots of frying oil were used as a catalyst in methylene blue solution with variations the number of C-Dots and the … …American Journal of Applied Sciences, Vol. 13, Issue 4 · 28 Apr 2016 · 7,701 accessesView PDFCite
InvestigationOpen accessIn the abstractBackpropagation Vs. Radial Basis Function Neural Model: Rainfall Intensity Classification For Flood Prediction Using Meteorology DataSoo See Chai, Wei Keat Wong, Kok Luong GohRainfall is one of the important weather variables that vary in space and time. High mean daily rainfall (>30 mm) has a high possibility of resulting in flood. Accurate prediction of this variable would save human lives and properties. Soft computing methods have been widely applied in this field. Among the various soft computing methods, Artificial Neural Network (ANN) is … …Journal of Computer Science, Vol. 12, Issue 4 · 15 Apr 2016 · 8,710 accessesView PDFCite
Research ArticleOpen accessIn the abstractNON-INVASIVE OPTICAL METHOD FOR EPIDERMAL THICKNESS ESTIMATIONAdrian Pena, Miguel Arronte, Eduardo De Posada et al.A non-invasive method to determine epidermal thickness from the intensity of transmitted visible light is proposed. A simple model for passing light through the epidermis layers, then measuring what is transmitted back out of the surface, is implemented by using the Montecarlo method. Simulations revealed that the transmittance is linearly dependent on the thickness of the epidermis and so demonstrated … …OnLine Journal of Biological Sciences, Vol. 14, Issue 2 · 25 Jun 2014 · 7,484 accessesView PDFCite
Research ArticleOpen accessIn the abstractHYPOLITHIC CYANOBACTERIA COLONIZATION OF QUARTZ AT SOUTH DESERTRoda F. Al-ThaniHypolithic microbial communities (found underneath rocks) were encountered in the southern desert of Qatar where quartz rocks are ubiquitous and are a substrate for hypoliths. These hypoliths thrive where extreme temperature, moisture stress and high light intensity limit the occurrence of higher plants and animal life. A small-scale ecological survey indicated that 80% of the quartz rocks in the area … …OnLine Journal of Biological Sciences, Vol. 14, Issue 1 · 11 Feb 2014 · 7,306 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of Scattering Parameters of a New Copolymer by Using a Laser Scattering MethodRiyad GhazyProblem statement: In present work a poly (4 vinylphenol-co-2 hydroxethyl methacrylate) polymer, (PVPh-HEM), was selected, as a new copolymer, to study the phenomena of Optical Laser Light Scattering (OLLS). Approach: A poly (4 vinylphenol-co-2 hydroxethyl methacrylate) was investigated for its importance in the highly industrial applications in different branches. This polymer was solved in two different solvents like as Methanol … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 6,929 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Aerosol Particle Size at High Polluted Region in the World Using Direct Solar Radiation Measurements: Helwan as a Case RegionU. Ali RahomaProblem statement: Particle counting and sizing of atmospheric aerosols by electro-optical methods are complex and absolute interpretation of measurements is difficult, so, the scattered light varies in a complicated manner with the system of optics as well as with the size and physical characteristics of particles. Approach: The estimation of the air aerosol number concentration variation was carried out in … …American Journal of Environmental Sciences, Vol. 6, Issue 2 · 8 May 2010 · 6,674 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Exposure to Various Durations of Light on Serum Insulin-Like Growth Factor-I in Prepubertal Holstein HeifersL.J. Spicer, B.A. Buchanan, L.T. Chapin, H.A. TuckerOur objective was to determine if prolonged exposure to various durations of light (i.e., photoperiod) would affect serum IGF-I concentrations in heifers. Thus, 16 Holstein heifers, 2 to 4 mo of age, were exposed during a 5-wk pretreatment period to 12 h of cool-white fluorescent light (L) at an intensity of 1200 lux and 12 h of dark (D). At … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 2 · 30 Dec 2007 · 6,673 accessesView PDFCite