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43 articles for “swell”
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Research ArticleOpen accessEvery word in the titleA Novel Method of Voltage Sag and Swell Estimation for Power System ApplicationsA. Vetrivel, Jovitha Jerome, N. MalmuruganThis study presents four simple mathematical models to build the voltage shape with the knowledge of few parameters and detects voltage sag and swells accurately. Fourier series, cubic polynomial, Rational functions and Sum of Sin functions are used in this study to model the voltage profile. A new algorithm is developed to detect sag or swell in all the four … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 2 · 4 Jul 2013 · 7,080 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 · 6,650 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleHydro-Mechanical Constraints and Deformations in Road Embankments Using Unsaturated Low-Swelling SoilSoumaïla Gandema, Marcel Bawindsom Kébré, Rimyalegdo Kiébré et al.In this paper, we present the results of a simulation of the evolution of stresses and deformations in a road embankment using unsaturated low-swelling soil under hydro-mechanical pressures, modeled with the finite element code Code_Bright. We assume that this embankment, which supports asphalt, follows the Barcelona Thermo-Elasto-Plastic model (BBM-TEP). This model describes the Thermo-Hydro-Mechanical (THM) behavior of unsaturated fine soils … …American Journal of Applied Sciences, Vol. 22, Issue 1 · 16 Nov 2025 · 2,741 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePhysiologic Human Fluids and Swelling Behavior of Hydrophilic Biocompatible Hybrid Ceramo-Polymeric MaterialsAversa Raffaella, Relly Victoria V. Petrescu, Apicella Antonio, Florian Ion T. PetrescuAll synthetic and natural materials to be used in biomedical applications that involve the contact with human body need to be investigated for their physical and chemical modification induced by the human physiological fluids contact and sorption. The development and testing in human physiological equivalent fluids of new hybrid biomaterials are presented. The role of water and its equilibrium modification … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 4 · 8 Nov 2016 · 8,387 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleVoltage Swells Improvement in Low Voltage Network Using Dynamic Voltage RestorerR. Omar, N.A. Rahim, A. AhmadProblem statement: Voltage disturbances are the most common power quality problem due to the increased use of a large numbers of sophisticated electronic equipment in industrial distribution system. The voltage disturbances such as voltage sags, swells, harmonics, unbalance and flickers. High quality in the power supply is needed, since failures due to such disturbances usually have a high impact on … …American Journal of Applied Sciences, Vol. 8, Issue 1 · 31 Jan 2011 · 7,376 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPOWER QUALITY DIAGNOSIS IN DISTRIBUTION NETWORK USING WAVELET TRANSFORMH. H. Goh, H. L. Ting, Q. S. Chua et al.Power quality is one of the most concerns to the electric power suppliers, equipment manufacturers and the users of various electrical and electronic equipments. This paper presents the use of a continuous wavelet transform to detect and analyse voltage sags and swells. Characteristics which include duration and magnitude of the investigated signals are measured. Unlike other approaches where the detection … …American Journal of Applied Sciences, Vol. 11, Issue 2 · 26 Dec 2013 · 7,061 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCadmium Induced Changes in Metabolic Function of Mitochondrial Isolated from Potato Tissue (Solanum tuberosum L.)Chagra Ali, Djebar Mohammed Réda, Rouabhi Rachid, Berrebbah HouriaProblem statement: Cadmium is highly toxic at low concentrations, but the mechanism of its toxicity is still not understood particularly at the cellular and subcellular level. Approach: In this study we examined the effects of cadmium on the oxidophosphorylation properties of mitochondria isolated from potatoes. Results: Cadmium strongly disturbed the respiratory metabolism of mitochondria isolated especially in the transfer of … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 1 · 31 Aug 2009 · 7,838 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCocaine Exposure Results in Formation of Dendritic Varicosity in Rat Primary Hippocampal NeuronsHonghong Yao, Crystal Bethel-Brown, Anil Kumar, Shilpa BuchProblem statement: It has been well documented that drugs of abuse such as cocaine can cause enhanced progression of HIV-Associated Neuropathological Disorders (HAND), the underlying mechanisms mediating these effects remain poorly understood. Approach: In present study, we explored the impact of cocaine exposure (I and 10 μM) on the dendritic beading in rat primary hippocampal neurons. Using the approach of … …American Journal of Infectious Diseases, Vol. 5, Issue 1 · 31 Mar 2009 · 7,889 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPower Quality Improvement Using DVRC. Benachaiba, B. FerdiVoltage sags and swells in the medium and low voltage distribution grid are considered to be the most frequent type of power quality problems based on recent power quality studies. Their impact on sensitive loads is severe. The impact ranges from load disruptions to substantial economic losses up to millions of dollars. Different solutions have been developed to protect sensitive … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 8,040 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPower Quality Improvement Using a Sliding Mode Control of a Series Active FilterTheerayuth ChatchanayuenyongA sliding mode controller (SMC) for a three-phase series active filter was proposed to compensate voltage unbalances, suppress voltage sags and swells and hence improve the power quality of a three-phase ac system. The voltage unbalance compensation and regulation is only based on the positive sequence component decomposition of the supply voltage that is then adjusted to a rated value … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 6,584 accessesView PDFCite