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324 articles for “x-ray”
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Research ArticleOpen accessIn the keywordsEffect of Sr Substitution on Structure and Thermal Diffusivity of Ba1-xSrxTiO3 CeramicS.A. Halim, Z.A. Talib, Firas K. Mohamad Al-Asfoor et al.Problem statement: The aim of this research was to study the effect of Sr substitution on structure and thermal diffusivity of Bal-xSrxTiO3 ceramic at room temperature. Approach: Structural and thermal diffusivity of Ba1-xSrxTiO3 were studied by performing X-ray diffraction and photoflash measurements. The effects of Sr substitution on the structure and on the thermal diffusivity of Ba1-xSrxTiO3 (0≤x≤1) were investigated. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 8,778 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSynthesis and Characterization of Silver/Clay/Chitosan Bionanocomposites by UV-Irradiation MethodMansor Bin Ahmad, Kamyar Shameli, Majid Darroudi et al.Problem statement: Silver/Montmorillonite/Chitosan Bionanocomposites (Ag/MMT/Cts BNCs) have been synthesized by UV-irradiation reduction method in the absence of any reducing agent or heat treatment which is used to antibacterial application and medical devices. Approach: MMT, Chitosan and AgNO3 were used as a solid support, stabilizer and silver precursor, respectively. The properties of Ag/MMT/Cts BNCs were studied as a function of UV-irradiation … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 8,819 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSynthesis and Characterization of Silver/Clay Nanocomposites by Chemical Reduction MethodMansor Bin Ahmad, Kamyar Shameli, Majid Darroudi et al.Problem statement: Silver Nanoparticles (Ag-NPs) have been synthesized by using chemical reduction method into the interlayer space of a Montmorillonite (MMT) as a solid support which is used to antibacterial application and polymer nanocomposites for fabrication of medical devices. Approach: AgNO3 and NaBH4 were used as a silver precursor and reducing agent, respectively. The properties of Ag/MMT nanocomposites were studied … …American Journal of Applied Sciences, Vol. 6, Issue 11 · 30 Nov 2009 · 8,175 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffect of Grain Size on Selected Physico-Chemical Properties of ClayOsumanu Haruna Ahmed, Nik Muhamad Ab. Majid, Mohamadu Boyie JallohProblem statement: Mixture of the right proportion of expanding and non-expanding clays to improve plasticity (moldability) of clays used in the pot industry of Malaysia is yet to be well investigated. In addition, little is known about the choice of the right clay size to eliminate or reduce the content of undesirable compounds such as Fe2O3, Al2O3 to improve the … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 7,154 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIn vitro Growth and Inhibition Studies of Monosodium Urate Monohydrate Crystals by Different Herbal ExtractsBharat B. Parekh, Sonal R. Vasant, Kashmira P. Tank et al.Problem statement: A large number of people in the world have been suffering from gout for centuries. Gout is the term given to a metabolic condition in which the signs and symptoms results from the deposition of crystals of Monosodium Urate Monohydrate (MSUM) in various connective tissues. Approach: It was quite difficult to grow good quality large MSUM crystals because … …American Journal of Infectious Diseases, Vol. 5, Issue 3 · 30 Sep 2009 · 10,218 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSynthesis of Al3Fe5O12 Cubic Structure by Extremely Low Sintering Temperature of Sol Gel TechniqueNoorhana Yahya, Ramadan A.H. Masoud, Hanita Daud et al.Problem statement: Fabrication of nano materials particularly nano inductors at low sintering temperature remains a challenge. This study was carried out as our initial response to obtain a nano-size inductors, which is aluminium iron garnet using low sintering temperature. Approach: The aluminum iron garnet (Al3Fe5O12) nano crystals were prepared by sol-gel technique. The starting solution is a mixture of iron … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,570 accessesView PDFCite
Research ArticleOpen accessIn the keywordsElectrical, Structural, Magnetic and Transport Properties of Zn2 Ba Fe16 O27 Doped With Cu2+D. M. Hemeda, O. M. HemedaSeries of polycrystalline samples of Zn2-x Cux Ba Fe16 O27 were prepared by usual ceramic methods, where (x=0.0, 0.4, 0.6, 0.8, 1.0, 1.4) . X-ray analysis were obtained at room temperature using Coka with λ = 1.790A0 confirmed the presence of W-type hexaferrite phase structure . Saturation magnetization and hysteresis loops curves measurements at room temperature were studied as a … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 6,905 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSynthesis and Charaterization of Magnesium Zinc Ferrites as Electromagnetic SourceNoorhana Yahya, Ami Salwani Mohamad Nor Aripin, Azizuddin A. Aziz et al.Fabrication of Mg1-XZnXFe2O4 (where x = 0.2, 0.3, 0.4 and 0.5) samples using a conventional technique is reported. Oxides of magnesium, zinc and iron with purity of about 99.99% were mixed with distilled water in a milling machine for 12 hours. They were then filtered and presintered at 1250°C and sintered at 1350°C for 10 h in air. The phase … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2008 · 9,003 accessesView PDFCite
Research ArticleOpen accessIn the keywordsGamma Radiosensitivity Study on Chili (Capsicum annuum)Shairul Rizdiyandi Omar, Osumanu Haruna Ahmed, Shaharudin Saamin, Nik Muhamad Ab. MajidInduced mutation by gamma irradiation has been found to be a very useful technique for crop improvement. Apart from this, the proper use of induced mutation in plant breeding has become a profitable approach. This investigation was carried out to determine the LD50 and effect of gamma rays on germination, plant height, survival percentage, root length, root dry weight and … …American Journal of Applied Sciences, Vol. 5, Issue 2 · 28 Feb 2008 · 9,039 accessesView PDFCite
Research ArticleOpen accessIn the keywordsGamma Radiosensitivity Study on Long Bean (Vigna sesquipedalis)Ellyfa Kon, Osumanu Haruna Ahmed, Shaharudin Saamin, Nik Muhamad Ab. MajidThis study was conducted to determine the LD50 and effect of gamma ray on germination percentage, plant height, survival percentage, root length, root dry weight and shoot dry weight of seedlings derived from seeds of long bean (Vigna sesquipedalis). Seeds of this crop were treated with 300, 400, 500, 600 and 800 Gy gamma rays at Malaysian Institute of Nuclear … …American Journal of Applied Sciences, Vol. 4, Issue 12 · 31 Dec 2007 · 8,601 accessesView PDFCite