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321 results for “Synthesis”
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Research ArticleOpen accessEvery word in the titleGraphene Synthesis by Plasma-Enhanced CVD Growth with EthanolTeresa Campo, María Cotto, Francisco Márquez et al.A modified route to synthesize graphene flakes is proposed using the Chemical Vapor Deposition (CVD) technique, by using copper substrates as supports. The carbon source used was ethanol, the synthesis temperature was 950°C and the pressure was controlled along the whole process. In this CVD synthesis process the incorporation of the carbon source was produced at low pressure and 950°C … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 3 · 27 Jul 2016 · 9,156 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTotal Synthesis of Endangered Frog Alkaloid ’Epibatidine’, A Potent Analgesic of the FutureN.R. Dhatrak, M.G. Kulkarni’Epibatidine’ is a nicotinic alkaloid’, was first discovered in the skin of neotropical poisonous frog, ’Epipedobates tricolor’ found in Ecuador. John Daly in 1974 first isolated a trace quantity of this alkaloid by scarifying several frogs. With the evolution of NMR techniques the structure of this alkaloid was reported in 1992. An year after, Nobel Laureate Prof. E.J. Corey, devised … …Current Research in Drug Discovery, Vol. 1, Issue 2 · 26 Jan 2015 · 17,116 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSynthesis and Calcium Channel Blocking Activity of 1, 4-Dihydropyridine Derivatives Containing Ester Substitute and Phenyl Carbamoyl GroupBassem Sadek, Khairi Mustafa Salem Fahelelbom, Laurentiu Morusciag, Sigurd ElzProblem statement: Several studies on the synthesis of new nifedipine analogs have been carried out, but the literature reveled that no study on the synthesis and calcium channel blocking activity of the substituted ester with an amide (5-phenylcarbamoyl) moiety has been reported. Approach: Six new derivatives of m-nifedipine have been successfully synthesized by substituting an ester moiety with an amide … …American Journal of Applied Sciences, Vol. 8, Issue 4 · 18 Apr 2011 · 8,253 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Elicitors and Precursors on the Synthesis of Anthocyanin in Grape Vitis vinifera Cell CulturesNay Min Min Thaw Saw, Heidi Riedel, Onur Kütük et al.Problem statement: Nowadays, plant cell suspension cultures and immobilized cells are being utilized for the higher yield and quality of the products than extraction of whole plants. Anthocyanins are compounds found in plants that have powerful antioxidant properties. They also provide some of the coloring or pigment of plants, flowers and fruits. Anthocyanin from grape cell cultures can be used … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 15,285 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleProsody Modification of Standard Arabic Speech Using Combining Synchronous Overlap and Add With Fixed-Synthesis Algorithm and Multi Level Discrete Wavelet TransformYkhlef Faycal, Bensebti Mesaoud, Bendaouia LotfiProblem statement: The objective of prosody modification is to change the amplitude, duration and pitch (F0) of speech segments without altering their spectral envelop. Applications are numerous, including, Text-To-Speech synthesis, transformation of voice characteristics and foreign language learning. Several approaches have been developed in the literature to achieve this goal. The main restrictions of these latter are in the modification … …Journal of Computer Science, Vol. 6, Issue 4 · 30 Apr 2010 · 6,840 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGenetically Modified Organism Trade Route and Biosafety-Is It a Failing Synthesis?Debdatta Dobe, Rohini SenProblem statement: GM regulations have spawned international conflicting reactions especially between US and EU, with countries requiring food aid caught midway. This article covers the following issues: Whether biotechnology policies of other countries affect the developing countries’ trade in agricultural crops?" Does unregulated GM expansion and contamination, render the system fallacious? Can there be synthesis between trade and environment? Approach: … …American Journal of Economics and Business Administration, Vol. 1, Issue 3 · 30 Sep 2009 · 7,706 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSynthesis of Coenzyme Q10Suryachandra Rao Ravada, Lakshma Reddy Emani, Machi Raju Garaga et al.Problem statement: CoQ10 is a key compound in ATP synthesis having wide number of health application especially for treating humans suffering from pathophysiological condition. The CoQ10 presently available in the market is solely derived from fermentation process. A commercially viable synthetic process is yet to be realized. Approach: The researchers described a new synthetic route for the preparation of CoQ10 … …American Journal of Infectious Diseases, Vol. 5, Issue 2 · 30 Jun 2009 · 9,010 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSynthesis of Optimal Incoherent Subcarrier Tracking of BOC(1,1) Navigation SignalsAlexandr Ivanovich PerovNavigation receivers of global positioning systems that are operated in complex electromagnetic environment must have an increased noise immunity characteristic. One way of such noise immunity rising is to use incoherent operating mode of navigation receiver. There are known processing algorithms for navigation signals with Binary Phase Shift Keying (BPSK) modulation. But in the near-term outlook Global Navigation Satellite Systems … …American Journal of Applied Sciences, Vol. 13, Issue 9 · 26 Sep 2016 · 7,169 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHydrothermal Synthesis of CuWO4-Reduced Graphene Oxide Hybrids and Supercapacitor ApplicationKoyal Suman Samantaray, Surjit Sahoo, Chandra Sekhar RoutThis study reports a facile hydrothermal synthesis of Copper tungsten oxide (CuWO4) and CuWO4-reduced graphene oxide hybrid nanoparticles and its application as an electrode for supercapacitor application. The morphology and composition has been characterized using X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and EDAX. The supercapacitive behavior has been studied from cyclic voltammetry and galvanostatic charge-discharge tests. The … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 3 · 12 Aug 2016 · 9,558 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSynthesis and Characterization of Ink (Carbon)-Perovskite/Polyaniline Ternary Composite Electrode for Sodium Chloride SeparationSavita Dixit, Sandhya PalWe reported the synthesis of ink-perovskite/Polyaniline composite electrode material for the separation of sodium chloride solution. These electrode materials are prepared by in situ polymerization process of aniline in the presence of perovskite ceramic material with carbon catalyst surface. This material is having the highest conductivity as a cathode material, environmentally benign and low cost material. The structure and morphological … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 4 · 2 Sep 2015 · 7,389 accessesView PDFCite