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187 articles for “equivalent”

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Research ArticleOpen accessIn the keywordsLifestyles and Migraine AttackHui Jun Chih, Wenbin LiangProblem statement: Migraine is a headache disorder of serious public health concerns as many sufferers are permanently disabled and incapable of carrying out simple daily routines. Migraine is contributed by biological and lifestyle factors. Understanding the association between these factors and migraine, particularly the modifiable lifestyle factors, can reduce the prevalence of this chronic disease and ease the burden on … …Current Research in Medicine, Vol. 2, Issue 2 · 2 Dec 2011 · 7,517 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAnalysis of Leakage Current to Predict Insulator Flashover Using Artificial Neural NetworkN. Narmadhai, A. Ebenezer JeyakumarProblem statement: The phenomenon of flashover in polluted insulators has been continued by the study of the characteristics of contaminating layers deposited on the surface of insulators in high voltage laboratories. In the literature, Experimental investigations have been carried out on a real insulator or a flat plate model of insulators under high voltage application. This study proposed the Equivalent … …Journal of Computer Science, Vol. 7, Issue 2 · 25 Feb 2011 · 7,618 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEvaluation of Hairy Vetch (Vicia villosa Roth) in Pure and Mixed Cropping with Barley (Hordeum vulgare L.) to Determine the Best Combination of Legume and Cereal for Forage ProductionSeyedeh, Davood Habibi, Ali Kashani et al.Problem statement: Mixed cereal-legume cropping can supply valuable forage in dry areas, as well as improving soil characteristics to approach sustainable farming systems in these regions. Approach: In order to comprise quality and quantity of produced forage and to determine the best planting ratio in a hairy vetch and barley mix cropping, a two year study was conducted during 2008 … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 9,102 accessesView PDFCite
Research ArticleOpen accessIn the keywordsStudies of the Terrestrial outdoor Gamma Dose Rate Levels in Ogun-Osun River Basins Development Authority Headquarters, Abeokuta, NigeriaI.C. Okeyode, A.M. OluseyeProblem statement: The natural radioactivity levels in the soils of Ogun-Osun River Basins Development Authority Headquarters, (O-ORBDA HQ) Abeokuta, South-Western part of Nigeria were measured. Approach: (O-ORBDA HQ) is a parastatal of Federal Ministry of Water Resources and Rural Development in Nigeria charged with the responsibility for the development and management of the water resources in its area of coverage. … …Physics International, Vol. 1, Issue 1 · 30 Mar 2010 · 7,917 accessesView PDFCite
Research ArticleOpen accessIn the keywordsNatural Activities of 238U, 232Th and 40K in Manganese OreH. A. Abel-GhanyProblem statement: Manganese ore is widely used in much industries. Such as ore contain natural radioactive nuclides at various concentrations. If this ore contain high concentrations of natural radioactive nuclides, workers handling them might be exposed to significant levels of radiation. Therefore it is important to determine the radioactive nuclides in this ore. Approach: The natural radionuclides (238U, 232Th and … …American Journal of Environmental Sciences, Vol. 6, Issue 1 · 28 Feb 2010 · 7,024 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Application of Combined Model for Tehran Metropolitan Area Incorporating Captive Travel BehaviorShahriar A. Zargari, Morteza Araghi, Kouros MohammadianTo overcome deficiencies of the sequential transportation planning approach, this research applies a Combined Trip Distribution and Assignment Model (CTDAM) for the simultaneous prediction. The proposed combined model can itself be reformulated as an Equivalent Minimization Problem (EMP). When applying the Evans algorithm to the EMP, the CTDAM is expected to be usable in a realistic application. The objective of … …American Journal of Applied Sciences, Vol. 6, Issue 1 · 31 Jan 2009 · 7,855 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInvestigation of Pile- Soil Interaction Subjected to Lateral Loads in Layered SoilsA. Avaei, Abdoul R. Ghotbi, M. AryafarTo stabilize infrastructures such as tall buildings, bridges, etc., piles are used to resist lateral loads created from earth pressure, wind, waves and earthquake extensively. Pile design requires understanding of how the load is transferred from a pile to surrounding soil and vice versa. Pile properties, soil stress-strain behavior and pile-soil interaction play important roles in pile-response subjected to lateral … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2008 · 7,339 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPOWER STABILITY MONITORING BASED ON VOLTAGE INSTABILITY PREDICTION APPROACH THROUGH WIDE AREA SYSTEMH. H. Goh, Q. S. Chua, S. W. Lee et al.Nowadays, power systems are being forced to operate closer to its security limit due to current economic growth and the difficulties to upgrade the existing grid infrastructure. With the sudden increment of power demand, voltage instability problem has become a main concern to the power system operator because voltage instability has led or crucially contributed to some major blackouts throughout … …American Journal of Applied Sciences, Vol. 11, Issue 5 · 10 Feb 2014 · 7,143 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDetermination and Evaluation of Antioxidative Activity in Red Dragon Fruit (Hylocereus undatus) and Green Kiwi Fruit (Actinidia deliciosa)Normala Halimoon, Mardhiah Hayati Abdul HasanProblem statement: Dragon fruit or pitahaya (Hylocereus undatus), is believed to be a healthy source of vitamins, fiber and antioxidants, especially the red-fleshed varieties which contain lycopene. Approach:Compared to green kiwi fruit (Actinidia deliciosa), which already known contain high antioxidant activity. Results:The antioxidant capacity of Hylocereus undatus (H. undatus) and Actinidia deliciosa (A. deliciosa) in three different solvent extraction; ethanol, … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 9,154 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRadiation Hazards Due to Radon Concentrations in Dwellings of Kufa Technical Institute, 'Iraq'Ali Abid Abojassim Al-Hamidawi, Afnan Ali HusainRadon concentrations were measured in Kufa dwellings of the technical institute, Al-Najaf- Iraq using LR-115 type II plastic track detectors. Additionally, annual effective dose and the excess lifetime cancer risk for the aforementioned dwellings were calculated. The results demonstrate that the radon concentration ranged from 37.4±6.4 Bq/m3 to 55.7±12.0 Bq/m3 with an average of 46.2±8.2 Bq/m3. The latter is found … …Physics International, Vol. 7, Issue 1 · 15 Apr 2016 · 8,143 accessesView PDFCite