Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

1,021 results for “Chemical”
Set a search alert
Research ArticleOpen accessIn the abstractGenotoxic Profile of Motor Garage WorkersNandan M. Shastri, Hemlata PantProblem statement: One way to study the effects on an exposed population is to conduct monitoring studies, using relevant biological parameters with a short term manifestation, such as cytogenetic analysis express the damages to the DNA or to the chromosomes resulting from exposure can be identified. The present study was thus designed to elucidate the effect motor garage environment on … …American Journal of Infectious Diseases, Vol. 7, Issue 3 · 15 Oct 2011 · 8,005 accessesView PDFCite
Research ArticleOpen accessIn the abstractResistance to Citrus Canker in Key/Mexican Lime Induced by β-Aminobutyric Acid and Green TeaB. Beheshti, G.R. Sharifi-Sirchi, M. Mansouri et al.Citrus bacterial canker, caused by Xanthomonas citri subsp. citri (Xcc), is a destructive disease. So far used chemicals to control this pathogen are either not effective or have harmful effects on the environment. To improve control of this disease, lime (Citrus aurantifolia) plants inoculated with Xcc were treated with β-Aminobutyric Acid (BABA), ascorbic acid (vitamin C), thiamin (vitamin B1), green … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 2 · 6 Jun 2011 · 8,191 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Qualitative Approach of Identifying Major Cost Influencing Factors in Palm Oil Mills and the Relations towards Production Cost of Crude Palm OilElaine Lau Ying Man, Adam BaharumProblem statement: The oil palm industry, which heavily depends on the world market, is an export oriented industry. World’s palm oil consumption was growing over the years. In addition, Indonesia and Malaysia dominated the oil palm industry. The oil palm industry in Malaysia is very competitive and become one of the major economic sectors contributing to the total revenue of … …American Journal of Applied Sciences, Vol. 8, Issue 5 · 17 May 2011 · 15,560 accessesView PDFCite
Research ArticleOpen accessIn the abstractMathematical Modeling and Characterization of Thin Film, Narrow Gap Sensor Array Units (SAU)Mahmoud Z. IskandaraniDesign, modeling, testing and analysis multi-gap PbPc sensor array units for the purpose of gas detection are carried out. The tested devices showed reduction in conductance as a function of increasing gap width and reducing film thickness and an increase as a function of temperature up to 160°C. An observed morphological change in the sublimed film is realized at 190°C … …American Journal of Applied Sciences, Vol. 7, Issue 9 · 30 Sep 2010 · 6,859 accessesView PDFCite
Research ArticleOpen accessIn the abstractTartaric Acid Modified Rice Hull as a Sorbent for Methylene Blue RemovalSiew-Teng Ong, Pei-Sin Keng, Ai-Wen Chong et al.Problem statement: Improper dye discharge from various industries such as textile, paper, cosmetic and plastics into receiving streams can be one of the sources towards water pollution. The release of these effluents not only causes various disruptions in the ecosystems, but also poses hazard effect as most of the dyes are highly toxic, mutagenic and carcinogenic in nature. Approach: To … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 7,155 accessesView PDFCite
Research ArticleOpen accessIn the abstractSurface Modification of Polystyrene Beads by Ultraviolet/Ozone Treatment and its Effect on Gelatin CoatingA. N. Yusilawati, M. Maizirwan, M. S. Hamzah et al.Problem statement: Polystyrene failed to provide any reactive functionality of surface hydrophilicity that is capable of binding proteins. It is known that polystyrene must be chemically modified to make its surface amenable to covalent crosslinking with protein. Approach: The aim of this study was to investigate the effects of UV/ozone treatment on gelatin coating. The surfaces of microsize polystyrene beads … …American Journal of Applied Sciences, Vol. 7, Issue 6 · 30 Jun 2010 · 8,852 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnalysis of Some Pesticide Residues in Cauliflower by High Performance Liquid ChromatographySheheli Islam, Nazneen Afrin, Mohammad Shawkat Hossain et al.Problem statement: Increased use of chemicals on vegetables started gaining momentum and continued its up-trend in Bangladesh. Wide spread use of pesticides in agriculture concern of residue accumulation, which may remain in food and agricultural environment causing concern of human health and risking ecological balance. Attempt made to ensure that their applications were correct and safe and result in no … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,865 accessesView PDFCite
Research ArticleOpen accessIn the abstractAir-Cooling Used For Metal CuttingBrian Boswell, Behrad Katirachi, Tilak T ChandratillekeAir-cooling and dry machining are both being trialled as possible solutions to the metal cutting industry’s long running problems of extending tool life, reducing tool failure and minimising the heat generation at the tool tip. To date, large amounts of expensive coolant which cause both environmental damage and health hazards have had to be used. The introduction of dry machining … …American Journal of Applied Sciences, Vol. 6, Issue 2 · 28 Feb 2009 · 8,215 accessesView PDFCite
Research ArticleOpen accessIn the abstractAmphoteric Starch in Simultaneous Process Preparation with Box-Behnken Design for Optimal ConditionsSopa Cansee, Juntanee Uriyapongson, Commueng Watyotha et al.Cassava starch was chemically modified to produce an amphoteric starch. The amphoteric starch was prepared in a simultaneous process which was evaluated in relation to four factors: temperature (45-55 °C), 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC, 4-12%) and sodium tripolyphosphate (STP, 2-8%) concentrations, and reaction time (2-6 h). The extent of amphoteric starch produced was determined by the degree of substitution (DS) of … …American Journal of Applied Sciences, Vol. 5, Issue 11 · 30 Nov 2008 · 7,527 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhysiochemical Properties of Sago Starch Modified by Acid Treatment in AlcoholP.H. Yiu, S.L. Loh, A. Rajan et al.Sago starch is usually chemically modified to overcome and improve the unstable properties of native sago starch during processing. In this study, sago starch was treated in hydrochloric acid in the presence of methanol, ethanol and 2-propanol at 450C for 1 hour. Granule size, granular structure and solubility of the modified starch were investigated. Results showed that recovery yields of … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 8,912 accessesView PDFCite