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85 results for “Carbon Dioxide”
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Research ArticleOpen accessIn the abstractMan in Outer Space Without a Special Space SuitAlexander BolonkinProblem statement: Many people dreamed about a living human in space without the encumbrance of a complex space suit. Unfortunately no scientific research and inventions: How to make it? Approach: Purpose of this research was to initial researching of this problem, necessary conditions, inventions, design needed devices, system and testing them. In this case main problem is how to satiate … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 9,000 accessesView PDFCite
Research ArticleOpen accessIn the abstractCoating and Encapsulation of Nanoparticles using Supercritical AntisolventG. H. Chong, R. Yunus, N. Abdullah et al.Problem statement: Literature on the production of nanoparticles using supercritical fluids is substantial, but comparatively much less for nanoencapsulation. Approach: In this study, a modified Supercritical Anti Solvent (SAS) apparatus was fabricated for use in the production of nanoparticles using carbon dioxide as the supercritical fluid (SCF). SAS technique involves precipitation of solids from liquid solution under supercritical antisolvent-induced condition. … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 8,417 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Study on Potentiality of Carbon Storage and CO2 Uptake in the Biomass and Soil of Coppice StandA. Khademi, S. Babaei, A. MatajiProblem statement: Enhancing carbon storage in terrestrial ecosystems, especially in the forests, is a key factor in maintaining the atmosphere's carbon balance. With regard to the importance of forest in carbon sequestration, this study attempted to investigate the carbon storage potential and CO2 uptake in oak coppice stand. Approach: After combining slope, aspect and hypsometric maps, the number of land … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 6,921 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Development of Ni/Dolomite Catalyst in Simultaneous Biomass Gasification and Reforming in Fluidized BedAnawat Ketcong, Tharapong Vitidsant, Kaoru FujimotoSimultaneous gasification and steam reforming of the biomass on Ni/dolomite catalyst in fluidized bed reactor were studied in the gaseous production in the one stage reactor. Problem statement: The parameters such as temperature, steam flow rate, biomass feed rate, gas flow rate for fluidization, oxygen flow rate and catalyst types were studied to produce the high gaseous products including tar … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,067 accessesView PDFCite
Research ArticleOpen accessIn the abstractChilling Injury in Mamey Sapote Fruit (Pouteria sapota): Biochemical and Physiological ResponsesGuillermo O. Pérez-Tello, Miguel Ángel Martínez-Téllez, Irasema Vargas-Arispuro, Gustavo A. González-AguilarProblem statement: Cold storage is needed in order to delay senescence and achieve a longer commercial life of tropical fruits like mamey sapote (Pouteria sapota), therefore, the physiological and biochemical responses of this fruit to cold storage were evaluated. Approach: Samples from different storage temperature (20, 10 and 2°C) were taken at five-day intervals and Chilling Injury Index (CII), decay … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 2 · 30 Jun 2009 · 9,162 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Microwave and Ultrasonic Pretreatments on Biogas Production from Anaerobic Digestion of Palm Oil Mill EffleuntN. Saifuddin, S A. FazliliProblem Statement: Oil palm production is a major agricultural industry in Malaysia. In 2006, palm oil mills in Malaysia produced more than 58 million tonnes of Palm Oil Mill Effluent (POME). Existing treatment in a series of open lagoons at high ambient temperatures, results in the uncontrolled production of methane and carbon dioxide, which are both green house gases (GHGs). … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,986 accessesView PDFCite
Research ArticleOpen accessIn the abstractDegradation of Corn Oil Wastes by Fenton Reaction and Under Mildly Basic Media in the Presence of Oxidants Assisted with Sun LightJosefina Vergara Sánchez, Susana Silva Martínez, Maria del Refugio Trejo HernándezThe degradation of water soluble corn oil wastes was carried out by Fenton reaction and also under mildly basic media in the presence of oxidants, such as hydrogen peroxide and persulfate, assisted with solar light. The degradation efficiency was obtained by analysis of chemical oxygen demand, carbon dioxide and gas chromatography. Over 90% of both chemical oxygen demand abatement and … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 6,979 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiodiesel Fuel Production from Algae as Renewable EnergyA.B.M. Sharif Hossain, Aishah Salleh, Amru Nasrulhaq Boyce et al.Biodiesel is biodegradable, less CO2 and NOx emissions. Continuous use of petroleum sourced fuels is now widely recognized as unsustainable because of depleting supplies and the contribution of these fuels to the accumulation of carbon dioxide in the environment. Renewable, carbon neutral, transport fuels are necessary for environmental and economic sustainability. Algae have emerged as one of the most promising … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 3 · 30 Sep 2008 · 32,063 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnvironmental Performance of the Milling Process Of Malaysian Palm Oil Using The Life Cycle Assessment ApproachVijaya Subramaniam, Ma An Ngan, Choo Yuen May, Nik Meriam Nik SulaimanMalaysia is currently the world leader in the production and export of palm oil. This study has a gate to gate system boundary. The inventory data collection starts at the oil palm fresh fruit bunch hoppers when the fresh fruit bunch is received at the mill up till the production of the crude palm oil in the storage tanks at … …American Journal of Environmental Sciences, Vol. 4, Issue 4 · 31 Aug 2008 · 8,819 accessesView PDFCite
Research ArticleOpen accessIn the abstractSelected Malaysian Wood CO2 -Laser Cutting Parameters And Cut QualityNukman Yusoff, Saiful Rizal Ismail, Azuddin Mamat, Aznijar Ahmad-YazidLaser has been used to cut most non-metallic materials very efficiently and successfully because these materials are highly absorptive by the CO2 laser wavelength of 10.6 10.6µm. Laser cutting process has been found to be reliable in loads of applications, with several advantages over other mechanical means in producing successful cut of even thermally sensitive materials such as wood. Various … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 7,797 accessesView PDFCite