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207 articles for “radiation”
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Research ArticleOpen accessIn the keywordsAnalysis of Robustness for Convex Optimization Applied to Array Antenna Pattern SynthesisRichard Torrealba, David H. Covarrubias, Marco PanduroThis study presents an analysis of the convex optimization applied to the synthesis of the radiation pattern for linear antenna arrays. This study emphasizes the application of the convex optimization for the array pattern synthesis considering the simultaneous elimination of several zones interferences, reduction of the level of power in two space zones densely populated by interferences, as well as … …Journal of Computer Science, Vol. 4, Issue 12 · 31 Dec 2008 · 6,570 accessesView PDFCite
Research ArticleOpen accessIn the keywordsElectromagnetic Assessment on Human Safety of Mobile Communication Base Stations at University of MacauK.H. Chiang, K.W. TamAssessment of the electromagnetic exposure due to the mobile communication base station at University of Macau is presented by two testing scenarios. The first scenario about 20 in-situ measurements and the maximum E-field strength was 2.46 V/m that well below the threshold and compliant to the safety guideline. The second scenario investigates on the distance effect of exposure due to … …American Journal of Applied Sciences, Vol. 5, Issue 10 · 31 Oct 2008 · 6,754 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTreatment of Remazol Brilliant Blue Dye Effluent by Advanced Photo Oxidation Process in TiO2/UV and H2O2/UV reactorsM. Verma, A.E. GhalyAdvanced oxidation processes involving TiO2/UV and H2O2/UV were evaluated for their potential use in decolorization of textile dye effluents. A coil photo reactor, consisting of UV radiation source and a spiral coil coated with TiO2, was used to treat synthetic effluent of Remazol Brilliant Blue dye. The TiO2 coating was performed using the sol-gel technique. The effects of UV radiation, … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2008 · 7,819 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInfluence of Different Doses of Irradiation on Oxidant and Antioxidant Systems in the Brain of Guinea PigsYildiz Guney, Ayse Bilgihan, Ayse Hicsonmez et al.The purpose of this study was to establish the impact of oxidative stress in the damaged brain tissue, irradiated with two different dose levels, a single dose of 8 and 15 Gy. In addition, the histological findings caused by ionizing radiation in the early period was investigated. The levels of MDA, GSH, SOD, CAT, GSH-Px and selenium were estimated in … …American Journal of Immunology, Vol. 1, Issue 3 · 30 Sep 2005 · 6,541 accessesView PDFCite
Research ArticleOpen accessIn the keywordsResidual Defects in Silicon Implanted with Boron and Phosphorous IonsM. JadanAccumulation of radiation defects in Si implanted with B+ or P+ ions, and formation of the residual extended defects (dislocation loops, rod-like defects) in the process of successive thermal treatment have been studied. The anomalies observed in the formation of the extended defects are associated with the elastic stresses in the damaged regions affecting the process of radiation defects clustering. …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,935 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPhotovoltaic Technology of Electricity Generation for Desert CampingShafiqur Rehman, Ali A. Shash, Omar S. Baghabra Al-AmoudiThis study presents a case study on the utilization of global solar radiation data on horizontal surface to perform economical feasibility of using Photovoltaic (PV) panels with battery backup to meet a small load for a camping site in Saudi Arabia. The analysis considers three scenarios with daily average energy demands of: (i) full load, (ii) 75% load and (iii) … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,929 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDegradation of High Voltage Polymeric Insulators in Arid Desert's Simulated Environmental ConditionsYasin KhanProblem statement: High Voltage (HV) polymeric insulators are replacing ceramic insulator commonly used for HV outdoor networks due to their ease of handling, reliability and cost. However, their long term performance and reliability are major concerns to power utilities. Approach: To investigate their performance in arid desert's conditions, two types of HV composite insulators were aged as per International Electrochemical … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 8,103 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFormation of Vegetation Cover and Soil Quality Indicators at the Mine Sites of a Gold-Bearing Deposit (the Case of Kara-Agash, Kazakhstan)Vadim Chashkov, Aliya Bugubaeva et al.At present, the processes of natural recovery, vegetation coverage, and degraded lands of several coal, iron ore, uranium, and polymetallic mines and gold-bearing deposits are well-studied. The present study aims to identify opportunities to shape the soil layer and vegetation cover on reclaimed dumps/tailings of industrial waste and degraded land via artificial restoration. For this purpose, in July 2023, studies … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 16 Sep 2024 · 4,773 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Cosmic Microwave Background: A Condition of MaximumAntonie DinculescuIt is shown that by imposing a condition of maximum value for the luminosity of the source at the origin of the cosmic microwave background, one arrives at a set of equations characteristic to important cosmological quantities. Although these equations do not have a solid theoretical support, the values of the parameters derived from them agree surprisingly well with the … …Space Science International, Vol. 3, Issue 2 · 15 Feb 2016 · 12,787 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBuilding Information Modeling for Indoor Environmental Performance AnalysisYaik-Wah LimThere are increasing numbers of Building Information Modeling (BIM) software available nowadays which change the working methods in Architecture, Engineering and Construction (AEC) industry. From the stages of building design development to post-occupancy management, BIM plays an essential role in collaboration among multi-discipline professions, time and cost saving, fabrication and construction as well as facilities management. With the arising concern … …American Journal of Environmental Sciences, Vol. 11, Issue 2 · 29 Apr 2015 · 7,997 accessesView PDFCite