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50 articles for “particulate”
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Research ArticleOpen accessIn the abstractCHITOSAN NANOPARTICLES AND THEIR APPLICATIONS IN DRUG DELIVERY: A REVIEWSharare Najafi, Zahra Pazhouhnia, Omid Ahmadi et al.Chitosan is one of the most popular materials in the field of drug delivery due to its adhesivity and biodegradability. Different types of Chitosan based drug carriers have been conceived for various administration routes, such as oral, nasal, transdermal, parenteral, vaginal, cervical and rectal due to its biocompatibility and biodegradability. Chitosan Nanoparticles (NPs) have long been studied as carriers for … …Current Research in Drug Discovery, Vol. 1, Issue 1 · 8 Nov 2014 · 14,780 accessesView PDFCite
Research ArticleOpen accessIn the abstractASSESSING SOIL RESPIRATION AS AN INDICATOR OF SOIL MICROBIAL ACTIVITY IN RECLAIMED METAL CONTAMINATED LANDSKassandre Goupil, Kabwe NkongoloMining, roasting as well as smelting of these elements have caused sulphur dioxide fumigations and metal particulate depositions which have led to various detrimental effects on the overall environmental quality of the Greater Sudbury region. Soil amendment and revegetation within the Greater Sudbury Region were initiated to restore the damage land. Several methods have been used to assess the progress … …American Journal of Environmental Sciences, Vol. 10, Issue 4 · 11 Jul 2014 · 8,104 accessesView PDFCite
Research ArticleOpen accessIn the abstractEmerging Trends in Designing Short and Efficient Protein Purification ProtocolsSaurabh Gautam, Joyeeta Mukherjee, Ipsita Roy, Munishwar Nath GuptaProtein purification is carried out in both academic and industrial sectors. Both non-chromatographic approaches (precipitation, crystallization, partitioning) and chromatographic methods are used. When recombinant proteins are over expressed in foreign hosts, inclusion bodies are obtained. Many purification methods can be used to refold proteins. Many strategies allow one to avoid formation of inclusion bodies. The concept of affinity based separation … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 4 · 25 Dec 2012 · 9,013 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeavy Metal Contamination of Soils and Water Resources Kettara Abandoned MineManuel Valiente, Gustavo Perez, Marta Avila et al.Problem statement: Metal mining; together with mineral smelting and processing, have contaminated the environment surrounding mine areas throughout the world exceeding natural background concentration. Approach: These processes introduce metal contaminants into the environment through gaseous and particulate emissions, waste liquids and solid wastes. The principal objective of this study was to investigate soil and water contamination in the vicinity of … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 8 May 2012 · 8,835 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiomagnification Profiles of Trace Elements through the Food Web of an Integrated Shrimp Mangrove Farm in Ba Ria Vung Tau, South VietnamNguyen Phuc Cam Tu, Nguyen Ngoc Ha, Hiroaki Matsuo et al.Problem statement: Ba Ria Vung Tau (BRVT), a Vietnamese province with one of the fastest growing economies in the country, faces significant environmental challenges, including increased contamination of rivers and estuaries with urban and industrial wastes. Approach: Concentrations of 23 trace elements and stable isotope ratios (δ13C and δ15N) were analyzed in suspended particulate matter, one species of peanut worm, … …American Journal of Environmental Sciences, Vol. 8, Issue 2 · 9 Mar 2012 · 7,805 accessesView PDFCite
Research ArticleOpen accessIn the abstractFabrication and Experimental Investigation of PCM Capsules Integrated in Solar Air HeaterMahmud M. Alkilani, Kamaruzzaman Sopian, Sohif MatProblem statement: Thermal Energy Storage (TES) process can reduce the time or rate mismatch between energy supply and energy demand. Organic latent heat materials are suitable to use as storage medium, however, the low thermal conductivity of these materials slow the thermal response during charging and discharging processes. Approach: A solar air heater integrated with (PCM) has been designed, fabricated … …American Journal of Environmental Sciences, Vol. 7, Issue 6 · 11 Jan 2012 · 7,596 accessesView PDFCite
Research ArticleOpen accessIn the abstractLaboratory Scale of Liquid Coal Fuel Combustion Process and Exhaust Gas FormationKartika Kus Hendratna, Osami Nishida, Hirotsugu Fujita, Wataru HaranoProblem statement: Much research of coal has been already undertaken to ascertain the possibilities of coal being used as substitute for heavy fuel oil in the transportation sector. The effects of using coal as transportation fuel to the environment must also be considered. This study will review several aspects of the coal oil combustion process including combustion behavior, flame stability, … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 6,766 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Aerosol Particle Size at High Polluted Region in the World Using Direct Solar Radiation Measurements: Helwan as a Case RegionU. Ali RahomaProblem statement: Particle counting and sizing of atmospheric aerosols by electro-optical methods are complex and absolute interpretation of measurements is difficult, so, the scattered light varies in a complicated manner with the system of optics as well as with the size and physical characteristics of particles. Approach: The estimation of the air aerosol number concentration variation was carried out in … …American Journal of Environmental Sciences, Vol. 6, Issue 2 · 8 May 2010 · 6,674 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effects of Excess Oxygen to Mixture on the Gasses Emissions of a Gasoline EngineWaleed MomaniProblem statement: The effects of excess feeding oxygen to the fuel-air mixture on the exhausts gasses emissions concentrations are investigated here. It is known that spark-ignition and diesel engines are considered as major sources of urban air pollution; such pollutants are CO2, CO, HC. Hence, many techniques have been used to decrease such emissions such as: Catalytic converters, oxidizers, traps … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 7,517 accessesView PDFCite
Research ArticleOpen accessIn the abstractMAM-An Aquivalence-based Dynamic Mass Balance Model for the Fate of Non-Volatile Organic Chemicals in the Agricultural EnvironmentMohammad A. Batiha, Abdul Amir H. Kadhum, Abu Bakar Mohamad et al.A Multimedia Agricultural Model (MAM) for predicting the fate and transport of Non-Volatile Organic Chemicals (NVOCs) in the agricultural environment was presented. It is an expanded and modified version of the three compartmental model introduced by Batiha and co-authors in 2007, which is an aquivalence-based level IV. MAM considered five environmental compartments to include the air, water, soil, sediment and … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 8,130 accessesView PDFCite