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117 results for “Synthesis Method”

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Research ArticleOpen accessAll words, across the recordSynthesis and Characterization of Silver/Polyvinilpirrolidone (Ag/PVP) Nanoparticles Using Gamma Irradiation TechniquesShawkat Salameh Gasaymeh, Shahidan Radiman, Lee Yook Heng et al.Problem statement: In this study, attempts had been made to synthesize silver (Ag)/Poly Vinylpyrolidone (PVP) nanoparticles by ionizing radiation and at the same time overcoming some of the disadvantages previously reported by other methods such as impurities, solvent toxicity, size and distribution control and difficulty in their preparation that limits their commercialization potential. Approach: The use of this alternative method … …American Journal of Applied Sciences, Vol. 7, Issue 7 · 31 Jul 2010 · 9,962 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordSynthesis of Sodium Salt of 3,6-Dibutanoic-1,2,4,5-TetroxaneEduardo A. Castro, Soledad Bustillo, Jorge M. Romero et al.We report the experimental preparation of the sodium salt of 3,6-dibutanoic-1,2,4,5- tetroxane by addition of saturate solution of sodium hydroxide to the 3,6-dibutanoic-1,2,4,5-tetroxane, synthesized following the method modified by Jorge et al. The UV and IR spectra were studied from the experimental standpoint. A rather complete vibrational assignment was performed and the nature of the electronic transitions was discussed in … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,638 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordSynthesis, Characterization and Saponification of Poly (AN)-Starch Composites and Properties of their HydrogelsA. Hashem, M. A. Afifi, E. A. El-Alfy, A. HebeishHydrogels based on saponified products of poly (acrylonitrile, AN)-starch composites were prepared, characterized and their water abosrbency properties examined. The term composite refered to the resultant products of polymerizatin of AN with starch in presence of ceric ammonium nitrate (CAN) as initiator, that is the composite consists of poly(AN)-starch graft copolymer, homopoly(AN) , oxidized starch and unreacted starch. Thus AN … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,577 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordGears-Part IRelly Victoria V. Petrescu, Raffaella Aversa, Bilal Akash et al.The gears are today the most widespread and most frequently used mechanical transmissions, all over the world. They must be the factory on an industrial scale, everywhere and have a variety of uses, being extremely important for both the heavy machines of industrial buildings, as well as for domestic appliances, electronics, etc. meet the excessive size normal, big or even … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 10 May 2017 · 8,202 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordOptimization of Clock Tree Synthesis Under Stochastic Process Variation Modeling for Multi-FPGA SystemsKarthik Thirumalai Sampath, Jawahar Senthil Kumar VeerabadranIn this age of scientific computing, the experiment models and evaluation is a commonly employed rendition of the simulation methods. In addition to the optimality, the methods which depict underlying uncertainty in process variation. It is accomplished by adjusting number of samples on delay and wire width. Here addresses the thermal profile, if temperature gradually increases, also reduce worst case … …American Journal of Applied Sciences, Vol. 10, Issue 12 · 29 Oct 2013 · 6,510 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordNematic and Smectic Mesophase from Calamitic Bisazobenzene Liquid Crystal: Synthesis and Characterization of 1- Methoxyhexyloxy-4'-(4-Phenylazo) Azobenzene Hybrid MoleculeSidik Silong, Abdulsalam Abubakar Salisu, Muhamad Zaki Ab Rahman et al.A new hybrid calamitic liquid crystal material with rod-shape bisazobenzene moieties as a core has been synthesized and characterized by spectroscopic methods. The mesomorphic properties were investigated by differential scanning colorimetry, polarizing optical microscopy and X-Ray diffraction. The rod-shaped molecule 1- methoxyhexyloxy-4`-(4-phenylazo)azobenzene was prepared by diazotization of 4-phenylazoaniline, coupling with phenol and subsequent etherification of 1-Bromohexyloxy-4`-(4-phenylazo)azobenzene in methanol. The presence … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,980 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordMethodology of Compliant Mechanisms and its Current Developments in Applications: A ReviewSolehuddin Shuib, M.I.Z. Ridzwan, A. Halim KadarmanTraditional rigid-body mechanisms consist of a number of components to implement their functions. Therefore they face problems such as backlash, wear, increase in part-count, weight, assembly cost and time, regular maintenance. Reducing these problems will help in increasing mechanism performance and cost reduction. Recently, there are several examples of compliant mechanisms that have been designed and widely used in various … …American Journal of Applied Sciences, Vol. 4, Issue 3 · 31 Mar 2007 · 7,676 accessesView PDFCite