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373 articles for “Sun”
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Research ArticleOpen accessEvery word in the titleGlobal Solar Radiation Studies Due to Sunshine Hours and Other Meteorological ParametersMfon David Umoh, Sunday O. Udo, Ye-Obong N. UdoakahMultiple linear regression models were developed to estimate the monthly daily Sunshine Hours using four parameters during a period of eleven years (1997-2007) for locations in South Eastern Nigeria. These locations include Uyo (Latitude 5°18'53.7"N), Calabar (Latitude 5°16'07.6"N), Port Harcourt (Latitude 4°56'26.2"N), Warri (Latitude 5°34'21.0"N), Enugu (Latitude 6°27'42.42"N), Owerri (Latitude 5°38'05.1"N). The parameters include Relative Humidity, Maximum and Minimum temperatures, … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 3 · 30 Sep 2013 · 7,700 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSimplification of Sun Tracking Mode to Gain High Concentration Solar EnergyOmar Aliman, Ismail Daut, Muzamir Isa, Mohd Rafi AdzmanPower conversion from solar thermal energy to electrical energy is still very cost-intensive. Serious effort has to be given in the development of the concentrator or heliostat structure expenditure which contributing the most expensive component in a central receiver solar power plant. With current development to find alternatives and lower down the capital, a new mode of sun tracking has … …American Journal of Applied Sciences, Vol. 4, Issue 3 · 31 Mar 2007 · 7,187 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInfluence of Mineral Fertilizers and Methods of Basic Tillage on the Yield and Oil Content of SunflowerBeybit Nasiyev, Aida DukeyevaThe purpose of the study was to evaluate the influence of mineral fertilizers and methods of basic tillage on the yield and oil content of sunflowers in the north of Kazakhstan. The experiment was conducted in the agricultural experimental Station Zarechnoye limited liability partnership with southern thin chernozem soils. Records and observations of the growth and development of sunflowers were … …OnLine Journal of Biological Sciences, Vol. 23, Issue 3 · 23 May 2023 · 5,254 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInvestigation of Landform and Sunlight in Zayandeh Roud BasinKaveh Ostad-Ali-Askari, Maryam Marani-BarzaniSolar energy is as of energy that it is significant in human activities. Human activities can use in agricultures, factories, industrial and residential plan. In other hand, solar energy is as renewable energy can help to have safety environment. This study tries to say significant of identification of landforms and getting cheap and safe energy. In this study, classification of … …American Journal of Engineering and Applied Sciences, Vol. 14, Issue 4 · 15 Dec 2021 · 5,880 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCorpus Luteum Morphology and Function After Timed Artificial Insemination (TAI) in Nelore Heifers Supplemented with Sunflower Seed in their DietsGabriel Molinari de Mattos, Beatriz de Moraes Ropelli, Claudia Maria Bertan Membrive et al.The dietary Polyunsaturated Fatty Acids (PUFA) supplementation, before the Timed Artificial Insemination (TAI) protocol, may contribute to a reduction in embryonic mortality. In this context, we hypothesized that dietary supplementation with sunflower seed, before the TAI protocol, will promote an increase in the ovulatory Follicle Diameter (FD), with a consequent increase in the Corpus Luteum Diameter (CLD) and the plasma … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 3 · 12 Jul 2021 · 7,053 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleApplication of Data Mining Classifiers on Sunflower Edible Oil Bleaching Process: A Comprehensive Comparative AnalysisÖmer Nedim Kenger, Eren ÖzceylanSunflower oil is widely used as edible oil. It is commonly extracted by solvent extraction method from the sunflower seed. After extraction, crude sunflower oil is obtained. Crude sunflower oil has some undesirable impurities and dark colors. These impurities and dark colors require removal. The bleaching process is applied to remove the color. The bleaching earth is used in the … …Journal of Computer Science, Vol. 17, Issue 4 · 30 Apr 2021 · 6,943 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSSR Analysis of Nuclear DNA of Annual and Perennial Sunflower Species (Helianthus L.)N.V. Markin, A.V. Usatov, A.V. Grinko et al.Genotyping of 29 species of genus Helianthus L., including 5 annual and 24 perennial species from the collection of the N. I. Vavilov All-Russian Institute of Plant Genetic Resources has occurred, for this purpose were selected 52 SSR markers, with localization on all the 17 linkage groups of the sunflower genome. All the studied sunflower samples had unique SSR loci … …OnLine Journal of Biological Sciences, Vol. 20, Issue 2 · 25 Apr 2020 · 6,895 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSSR Analysis of the Chloroplast and Mitochondrial Genomes of Cultivar Lines and Wild Types of the Sunflower (Helianthus L.)Vladimir Arturovich Khachumov, Alexander Vyacheslavovich Usatov, Kirill Vitalievich Azarin et al.SSR analysis of chloroplast and mitochondrial genomes of cultivar lines and wild species of sunflower (Helianthus L.) were completed. The polymorphism of 18 microsatellite loci of the chloroplast and mitochondrial genomes was investigated. Based on the obtained data was constructed dendrogram showing the genetic diversity of chloroplast and mitochondrial genomes of sunflowers. The studied species were clustered into annual and … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 1 · 19 Feb 2020 · 7,675 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSolutions of the Duffing and Painlevé-Gambier Equations by Generalized Sundman TransformationDamien Kolawolé Kêgnidé Adjaï, Lucas Hervé Koudahoun, Jean Akande et al.A new approach using the generalized Sundman transformation to solve explicitly and exactly in a straightforward manner the cubic elliptic Duffing equation is proposed in this study. The method has the advantage to closely relate this equation to the linear harmonic oscillator equation and to be applied to solve other nonlinear differential equations. As a result, explicit and exact general … …Journal of Mathematics and Statistics, Vol. 14, Issue 1 · 8 Nov 2018 · 7,251 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleComparative Analysis of the Complete Chloroplast Genome of the Alloplasmic Sunflower (Helianthus L.) Lines with Various CMS TypesKirill Azarin, Maxim Makarenko, Alexander Usatov et al.The complete chloroplast genomes of sunflower fertile line HA89 and isonuclear CMS lines with four different cytoplasmic backgrounds (PET1, PET2, ANN2 and MAX) were sequenced. A total of 451 polymorphic sites, with including 58 SSRs, 317 SNPs and 76 microindels were revealed between the fertile and CMS cytotypes. Among the alloplasmic male-sterile lines, cpDNA of CMS-MAX had the largest number … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 1 · 2 Mar 2018 · 9,415 accessesView PDFCite