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77 results for “stabilize”
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Research ArticleOpen accessEvery word in the titleSTATCOM Stabilizer based on Fuzzy Logic Control for Damping Power OscillationPrechanon KumkratugProblem statement: In power systems, there exists a continuous challenge to improve dynamic performance of power system. Approach: Static Synchronous Compensator (STATCOM) is a power electronic based device that has the capability of controlling the power flow through a line. This study applies the Static Synchronous Compensator (STATCOM) to control the power flow during dynamic period. To verify the effect … …American Journal of Applied Sciences, Vol. 8, Issue 10 · 8 Sep 2011 · 7,444 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePower System Oscillations Damping Using Unified Power Flow Controller-Based StabilizerLokman H. Hassan, M. Moghavvemi, Haider A.F. MohamedProblem statement: The Phillips-Heffron model of a power system with UPFC published by AJAS, demonstrates the effect of the UPFC in improving power system oscillation stability. Unfortunately, some of the equations have not been correctly derived and so working with this model in its existing form is misleading. Approach: In this study, the model is revisited and the equations are … …American Journal of Applied Sciences, Vol. 7, Issue 10 · 31 Oct 2010 · 7,939 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAn Improvement Method for Swell Problem in Sulfate Soils that Stabilized by LimeM. JahanshahiIn this research low plasticity clay (CL) has to be mixed by varying percents of gypsum and after that this mixture would be treated with different amounts of lime, in two methods: regular application and Double application. The swell examinations would be done on these samples; and the influence of sulfates and mixing method on different quantities of swell will … …American Journal of Applied Sciences, Vol. 2, Issue 7 · 31 Jul 2005 · 6,654 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAdvantages of Utilizing Geotextiles in Fixing Sandy Soils and Increasing Shear Strength in Water Conveyance TrenchesAlireza Mardookhpour, Leila OoshaksaraieWith the increasing demand in water supply and either for generation or for irrigation and human consumption, water conveyance structures must guarantee a maximum efficiency at the lowest construction and maintenance costs. Using thin geotextiles allow very low permeability and very high transmissivity. Conclusion/Recommendations: The system constructs a continues, low roughness on the entire section of canal. In this research … …Current Research in Geoscience, Vol. 2, Issue 1 · 23 Jan 2012 · 13,190 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExperimental Investigation on Performance and Emission Characteristics of Low Heat Rejection Diesel Engine with Ethanol as FuelP. Lawrence, P. Koshy Mathews, B. DeepanrajProblem statement: Depleting petroleum reserves on the earth and increasing concerns about the environment leads to the question for fuels which are eco-friendly safer for human beings. The objective of present work was to investigate the effect of coating on piston, cylinder head and valves of a Diesel engine on the performance and emission characteristics of exhaust gases using wet … …American Journal of Applied Sciences, Vol. 8, Issue 4 · 18 Apr 2011 · 7,224 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSurface Bioactivity of Sol Gel Derived 3Y-TZP Bioinert Ceramic through Hydroxylation Technique Using 5M H3PO4R. Velmurugan, S. Kanagesan, S. Jesurani, T. KalaivaniProblem statement: This study presented bone like apatite formation on yttria stabilized zirconia in Simulated Body Fluid (SBF) through hydroxylation technique. Approach: Sol gel route was used to prepare yttria stabilized zirconia. Then it was hydroxylated with 5M H3PO4 for formation of Zr-OH group. Moreover, the growth rate of calcium and phosphate on zirconia substrate was examined using simulated body … …American Journal of Applied Sciences, Vol. 7, Issue 3 · 31 Mar 2010 · 7,249 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMechanism of Garden Aquatic Plants in the Remediation of Heavy Metal-Contaminated SoilChen Chen, Guangwu LiuHeavy metals such as cadmium, lead, and mercury are resistant to microbial degradation in soil and persist for extended periods. They can bioaccumulate through the food chain, ultimately impacting human health. This study demonstrates that a combined restoration approach involving soil enhancement and garden aquatic plants, specifically through the application of ferrous sulfate, results in increased dry weight and plant … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 1 · 20 Apr 2026 · 1,505 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDetermination of Rheological Properties of Bio Mastic AsphaltR. Muniandy, H. Jafariahangari, R. Yunus, S. HassimDue to the high oil prices the price of asphalt binder has increased tremendously. This scenario has warranted demand for higher viscosity cheaper asphalt for pavement construction. A study was conducted to take advantage of the Empty Fruit Bunch (EFB) of Date and Oil Palm trees (which are considered as waste) to produce cellulose fiber to be used as additives … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2008 · 8,073 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEvaluation of Transcript Labeling Techniques and Development of a Membrane-based Parallel Gene Expression AssayMark A. Fisher, Bonnie B. Plikaytis, Thomas M. ShinnickAn inexpensive alternative to micro arrays was developed to examine the expression of small sets of genes in parallel and used to compare direct and indirect transcript labeling methods. Psoralen-biotin direct labeling was ~10-fold less sensitive than reverse transcriptase-biotin-dUTP labeling, but the enzymatic method generated higher levels of background noise in miniarray hybridizations. The reproducibility of hybridization intensities was the … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,875 accessesView PDFCite
Research ArticleOpen accessIn the abstractResponse of Root Growth and Root Border Cell Characteristics of Hemerocallis fulva to NaCl StressJinxiu He, Yongxu Qiao et al.Taking three Hemerocallis cultivars ('Jingzhouhua', 'Qingchong', 'Changzuizihua') with different salt tolerance as materials, the effects of 0-200 mmol/L NaCl on root morphology and Root Border Cell (RBC) characteristics were investigated using hydroponic and root suspension culture methods and one-way analysis of variance (ANOVA). The results showed that the root morphology indicators and activity of the high-salt-tolerant 'Jingzhouhua' decreased less than … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 3 · 27 Oct 2026 · 80 accessesView PDFCite