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324 articles for “x-ray”
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Research ArticleOpen accessIn the keywordsNatural 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 · 7,456 accessesView PDFCite
Research ArticleOpen accessIn the keywordsStructural and Dielectrical Properties of Sterilized Human TeethMostafa Fawzy Eissa, Hassan Mohamed El-Shamy, Hassan Saad HanafyProblem statement: This study investigated the changes in crystallinity and dielectrical properties (conductivity) that could be demonstrated in extracted human teeth (enamel and dentin) subjected to γ-radiation at the sterilization dose (25 kGy). Approach: Twenty human third molar teeth were used in the study. Teeth were prepared so forty enamel and dentin samples were obtained. The samples were divided into … …Physics International, Vol. 3, Issue 1 · 20 Dec 2012 · 7,182 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEvaluation and Beneficiation of Bentonitic Clays from Pindiga Formation in Benue TroughB. B.M. Dewu, I. I. Funtua, M. O.A. Oladipo et al.Problem statement: This study aimed at evaluating and beneficiating Bentonitic clays of Pindiga Formation from the upper Benue trough in northeastern Nigeria to meet the standard required for use in oil well drilling. This will reduce the dependence on imported Bentonite into the country, increase foreign exchange, improve the country’s economy and create employment opportunities. Approach: Three clay samples from … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 4 · 16 Jan 2012 · 8,566 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCompositional Analysis on Ancient Bricks from Candi Sungai Mas (Site 32/34), Bujang Valley, KedahZuliskandar Ramli, Nik Hassan Shuhaimi Nik Abd. Rahman, Adnan Jusoh, Mohd. Zobir HusseinProblem statement: The significance of Kampung Sungai Mas as an importance archaeology site in Lembah Bujang was revealed in the year 1979 when a cannel was built along Kampung Sungai Mas area. During the construction study of this cannel, thousands of ceramic pieces from India, Middle East, China, Southeast Asia and Europe was discovered, pieces of glasses from Middle East … …American Journal of Applied Sciences, Vol. 9, Issue 2 · 12 Dec 2011 · 9,839 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRelationship of Body Composition Parameters with Hip and Fore Arm Bone Mineral Density: An Indian PerspectiveK.B. Kishore Mohan, V. Sapthagirivasan, M. AnburajanProblem statement: The relationship between obesity and osteoporosis has been widely studied and epidemiological evidence shows that obesity is correlated with increased bone mass. Anthropometric factors such as body height and body weight which are related to body mass index should be considered. Approach: We measured whole body fat mass, fat free mass, muscle mass, Body water, percentage fat mass … …OnLine Journal of Biological Sciences, Vol. 11, Issue 2 · 5 Oct 2011 · 7,912 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Estimation of X-Radiation Output using Mathematic ModelSuchart Kothan, Montree TungjaiProblem statement: Diagnosis x-ray radiation safety is key in medical examination. The quantity of patient radiation doses is beneficial for radiation protection of the patient. It was proposed that the equation for estimating the output (milliReongent, mR) from x-ray machines. Approach: A was 0.5, 0.8 and 1.0 for single phase, three phases and high frequency x-ray machines, respectively. To compare … …American Journal of Applied Sciences, Vol. 8, Issue 9 · 13 Aug 2011 · 7,753 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSynthesis of Baso4 Nanoparticles by Precipitation Method Using Polycarboxylate as a ModifierMohamed El-Shahate Ismaiel Saraya, Inas Mostafa BakrProblem statement: Barium Sulfate (BaSO4) is suitable for many applications because of its whiteness, inertness and high specific gravity. Approach: Nanoparticles of barium sulphate (BaSO4) have been synthesized from barium nitrate by precipitation method in the presence of water soluble organic polycarboxylic polymer as a modifying agent. Transmission electron microscopy, Scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray powder … …Current Research in Nanotechnology, Vol. 2, Issue 1 · 29 Jul 2011 · 15,705 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInfluence of Triethanolamine on the Chemical Bath Deposited NiS Thin FilmsAnuar Kassim, Ho Soon Min, Tan Wee Tee, Ngai Chee FeiProblem statement: Recently, many scientists looking for new chalcogenide materials for the solar cell applications. Nowadays, silicon-based solar cell became dominant products in the market. Because of expensive silicon-based solar cells, scientists hope replaces it with cheaper chalcogenide materials. Approach: The binary chalcogenide materials were deposited onto microscope glass slide using simple chemical bath deposition method. Here, we study the … …American Journal of Applied Sciences, Vol. 8, Issue 4 · 18 Apr 2011 · 7,970 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSynthesis and Characterization of Organotin(IV) N-Benzyl-N-Isopropyldithiocarbamate Compounds: Cytotoxic Assay on Human Hepatocarcinoma Cells (HepG2)Normah Awang, Ibrahim Baba, Nor Syaidatul Akmal Mohd Yousof, Nurul Farahana KamaludinProblem statement: Several studies on organotin(IV) dithiocarbamate compounds have been carried out but not on the synthesis and characterization together with cytotoxic assay of organotin(IV) N-benzyl-N-isopropyldithiocarbamate compounds. Approach: Three new organotin(IV) compounds of type N-benzyl-N-isopropyldithiocarbamate have been successfully synthesized by direct reaction between secondary amine with organotin(IV) chloride using in situ method. All the compounds were characterized using elemental analysis, … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 8,092 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRelaxation of Residual Stress Part 2: Relaxation of Stage 2Omar Suliman Zaroog, Aidy Ali, B.B. Sahari, Rizal ZahariProblem statement: Compressive residual stress induced by surface treatment such as shot peening increased component’s fatigue life. However the initial induced residual stresses relax during component operating life and it is important to consider the relaxation in the design. Approach: In this study, a 2024-T351 aluminum alloy specimens were shot peened into three shot peening intensities condition to induce compressive … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 7,997 accessesView PDFCite