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207 articles for “radiation”
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Research ArticleOpen accessIn the abstractWIRELESS ENERGY TRANSFER USING MICROSTRIP ANTENNALeong Kah Meng, Tan Tian Swee, Lum Kin Yun, Johari KassimThis study presents a concept on wireless energy transmission using microstrip antenna pairs. Microstrip antenna is chosen in its implementation in wireless energy transfer application primarily due to its characteristics: Its ease of analysis, fabrication and their attractive radiation characteristics. The outcome of this research is the fabrication of two microstrip antennas with resonant frequency of 1.94 GHz and 2.5 … …American Journal of Applied Sciences, Vol. 11, Issue 2 · 20 Dec 2013 · 7,125 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Cosmic Microwave Background: A Strange CharacteristicA. DinculescuThe ratio of the self-gravitational energy density of the scattering particles in the universe to the energy density of the scattered photons in the Cosmic Microwave Background (CMB) is the same in any volume of space. These two energy densities are equal at a radiation temperature on the order of the present CMB temperature. …Space Science International, Vol. 1, Issue 2 · 11 Dec 2013 · 7,219 accessesView PDFCite
Research ArticleOpen accessIn the abstractCritical Aging Segments of Power Transmission LineH. H. Goh, N. E. Chin, Q. S. Chua et al.Nowadays, blackouts or sags of a conductor are threatening the safety and stable run of the power transmission lines. These phenomena happen due to the environmental conditions which change over the time, such as aging or temperature variations, precipitation and hotspots of power transmission lines as a result of extreme weather conditions. A precipitation condition result loses of heat from … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 4 · 9 Dec 2013 · 9,266 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Energy Aspects of Apple Drying in the Hot-Air and Infrared DryersSeyed Hashem Samadi, Issa LoghmaniehDrying is an energy-intensive process. In general, heating and evaporation require large quantities of energy. This study has been conducted to evaluate analysis for dying apple slices in two drying systems including hot-air convection and infrared drying. The apple samples were dried at temperatures of 90, 120 and 150°C and radiation intensity of 0.22, 0.31 and 0.49 W/cm2 in the … …Energy Research Journal, Vol. 4, Issue 1 · 26 Aug 2013 · 8,013 accessesView PDFCite
Research ArticleOpen accessIn the abstractNatural Radioactivity at an Uraniferous SiteClaudio de Carvalho Conti, Esau Francisco Sena Santos, Isabel Cristina Poquet SalinasThe aim of this study is to evaluate the soil composition, the radioactive isotopes concentration and the outdoor air Kerma in the region of the Uraniferous Province of Lagoa Real, Bahia State, located at northeast of Brazil. It has used data from an airborne gamma-ray survey previously carried out in the region, namely Projeto Sao Timoteo and computer simulations of … …Energy Research Journal, Vol. 3, Issue 1 · 14 Feb 2013 · 7,459 accessesView PDFCite
Research ArticleOpen accessIn the abstractManipulation of Photosynthesis in Grape (Vitis vinifera) CV. ‘Flame’ by the Application of Two Sucrose AnalogsM. E. Tiznado-Hernandez, J. A. Orozco-Avitia, A. J. Ojeda-Contreras, A. A. Gardea-BejarThe translocation of photosynthates from the leaves is important for the accumulation of sugars in grape berries. Two sucrose analogs were applied at post-veraison to determine their effects on leaf photosynthesis. It is hypothesized that the signal of sugar accumulation in leaves will bring a reduction in photosynthesis and an increase in the photosynthate translocation rate to the berries. The … …American Journal of Agricultural and Biological Sciences, Vol. 8, Issue 1 · 9 Feb 2013 · 7,930 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntioxidant Activity of Brown Algae Sargassum species Extract from the Coastline of Java IslandSiti A. Budhiyanti, Sri Raharjo, Djagal W. Marseno, Iwan Y.B. LelanaThe coastlines with rocky shores at Java Island Indonesia, Gunung Kidul (Yogyakarta) and Jepara (Central Java), have abundant resources of brown algae Sargassum sp. Little effort, however, has been made to explore the antioxidant potential of the algae harvested from these area. Tropical brown algae have proven to produce a very effective antioxidant defence system due to the strong UV … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 3 · 30 Aug 2012 · 9,907 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign of Pass Band Filter in Hybrid Architecture Planar/Non-Radiative Dielectric Waveguide Integration TechnologyGharssallah Ali, Harizi HanenProblem statement: The expansion of RF, microwave and millimeter devices has revolutionized today’s ommunication and sensor systems. Low-cost, high-performance and mass producible millimeter wave technologies are vital for commercial broadband systems. Challenging issues are commonly faced in the design of low-loss integrated circuits for example high-Q band pass filter, which the planar technique is fundamentally limited in performance. Approach: In … …American Journal of Applied Sciences, Vol. 9, Issue 10 · 10 Aug 2012 · 7,094 accessesView PDFCite
Research ArticleOpen accessIn the abstractCoreless Winter Characteristics Observed with Global Positioning System Receivers over Antarctic and Arctic RegionsWayan Suparta, Faizatul Noor Abu Bakar, Mardina AbdullahProblem statement: The most recent warming trends occurred during the winter in Polar Regions had been attracted many researchers to study its impacts, which might affect the sensitivity of climate prediction in both regions, as well as on a global basis. Approach: The aims of this study were to observe the characteristics of coreless winter events using the GPS meteorology … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 22 Jun 2012 · 7,574 accessesView PDFCite
Research ArticleOpen accessIn the abstractImportace of the International Council of Environmental Engineering EducationIstvan PatkoProblem statement: Due to the climatic changes and the ecological variations of the biosphere, global natural resources including the atmosphere, hydrosphere, lithosphere, biodiversities, genetic resources and energy, radiation, electric charge and magnetism, must be safeguarded for the benefit of present and future generations through careful planning and management as appropriate. Approach: The main points of the International Council of Environmental … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 27 Mar 2012 · 7,538 accessesView PDFCite