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426 results for “Carbon”
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Research ArticleOpen accessEvery word in the titleA NEW THERMAL PROCESS FOR THE RECOVERY OF METALS FROM ZINC-CARBON AND ALKALINE SPENT BATTERIESGirolamo Belardi, Roberto Lavecchia, Franco Medici et al.The aim of this study is the thermal recovery of manganese and zinc from a mixture of zinc-carbon and alkaline spent batteries containing 40.9% of Mn and 30.1% of Zn after a preliminary physical treatment. Separation of the metals is carried out on the basis of their different phase change temperatures, the boiling point of zinc being 906°C and 1564°C … …American Journal of Applied Sciences, Vol. 11, Issue 9 · 26 Jul 2014 · 6,984 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleModification of Carbon Steel by Laser Surface Melting: Part I: Effect of Laser Beam Travelling Speed on Microstructural Features and Surface HardnessHashem F. El-Labban, M. Abdelaziz, Essam R.I. MahmoudThe present study aims to improve the surface hardness of carbon steel by application of laser surface melting of effective conditions. The travelling speed of laser beam during this treatment is one of the important treatment conditions. This study aims to investigate the effect of laser surface melting with different beam speeds on macro and microstructure as well as the … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 4 · 2 Jan 2014 · 7,407 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleComparison of Carbon and Selected Macronutrients in Forest-Floor Litter of Rehabilitated and Secondary ForestsMelvin Ku Kin Kin, Japar Sidik Bujang, Osumanu Haruna Ahmed et al.Problem statement: Forest rehabilitation with human assistance by species selection and management shortens the time needed to rehabilitate degraded land as compared to natural succession. Empirical data on litter nutrient contents of tropical rain forests in Southeast Asia have been established, however it is limited to rehabilitated degraded lands. The objective of this study was to determine contents of carbon … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 20 Aug 2011 · 7,744 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCo-Processing Trial of Spent Carbon at Wadi Cement Works KarnatakaP. Singh Bundela, Momita Chakrawarty, S. P. GautamProblem statement: Co-processing in cement kiln perforce provides high temperature and long residence condition during the operation and is an effective technology for the management of waste in an environmentally friendly and safe manner. It fully absorbs the energy and material value of the waste without any harmful emissions. Approach: Co-processing in cement kiln ranks higher in the waste management … …American Journal of Environmental Sciences, Vol. 6, Issue 4 · 31 Aug 2010 · 7,038 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Success Story of Voluntary Retirement Scheme in National Carbon Company: A Unit of Eveready Industries India LtdSoma Basu, Saroj K. DattaProblem statement: The success story of VRS in National Carbon Company-a unit of Eveready Industries India Ltd., Kolkata, which was the first dry cell manufacturing plant in India, is an eye opener for research scholars, practicing managers, trade union leaders and for the management students. Over the years, technology was not upgraded and so the labor cost of this unit … …American Journal of Economics and Business Administration, Vol. 2, Issue 2 · 30 Jun 2010 · 7,917 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleVoltammetric Detection of Mn(II) in Blood Sample at C60 and MWCNT Modified Glassy Carbon ElectrodesMuhammed Mizher Radhi, Wee Tee Tan, Mohamad Zaki B. Ab Rahman, Anuar Bin KassimProblem statement: Glassy carbon electrode GCE was modified with different microparticles to increase the efficiency of analysis Mn2+ in blood samples by cyclic voltammetry and applied for the detection of trace Mn(II) by oxidation process. Approach: The structure and composition of the modified GCE processed by using Carbon Nanotubes CNT and C60 to produce two modified electrodes CNT/GCE and C60/GCE, … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,492 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffects of Converting Secondary Forest to Oil Palm Plantation on Peat Soil Carbon and Nitrogen and other Soil Chemical PropertiesMakilan Muniandy, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid, Mohd Khanif YusopProblem statement: Peatlands are natural sequesters of carbon and nitrogen. Once they are disturbed the tendency to lose carbon and nitrogen to the environment is very high. This study investigated the effect of converting peat land forest into oil palm plantation on soil chemical properties with particular emphasis on carbon and nitrogen storage. Approach: Soil samples were collected randomly at … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,308 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleComputable General Equilibrium Techniques for Carbon Tax ModelingAl-Amin, Chamhuri Siwar, Abdul HamidProblem statement: Lacking of proper environmental models environmental pollution is now a solemn problem in many developing countries particularly in Malaysia. Some empirical studies of worldwide reveal that imposition of a carbon tax significantly decreases carbon emissions and does not dramatically reduce economic growth. To our knowledge there has not been any research done to simulate the economic impact of … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 6,954 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAnalysis and Optimization of Carbon Dioxide Emission Mitigation Options in the Cement IndustryMohammed Ba-Shammakh, Hernane Caruso, Ali Elkamel et al.The cement industry is responsible for approximately 5% of global anthropogenic carbon dioxide emissions emitting nearly 900 kg of CO2 for every 1000 kg of cement produced. Effective control strategies to mitigate these emissions are discussed and a mathematical programming model able to suggest the best cost effective strategy is outlined. Control costs consisting of operating and investment costs along … …American Journal of Environmental Sciences, Vol. 4, Issue 5 · 31 Oct 2008 · 7,394 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThermal Diffusivity of Carbon Pellets (CPs) Treated with KOHM. Haydari, M. M. Moksin, A. E. Abdelrahman et al.In this work thermal diffusivity of carbon pellets (CPs) treated with different percentage level of KOH has been studied. Thermal diffusivity measurements were carried out at room temperature by using photoflash technique. The technique consists of a camera flash having approximately 5 ms pulse duration for heating and a thin film of polyvinylidene difluoride (PVDF) attached to the back of … …American Journal of Applied Sciences, Vol. 5, Issue 2 · 28 Feb 2008 · 7,373 accessesView PDFCite