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7 articles for “Semi-Active”
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Research ArticleOpen accessEvery word in the titleSemi Active Tuned Mass Dampers of Buildings: A Simple Control OptionDemetris Demetriou, Nikolaos Nikitas, Konstantinos Daniel TsavdaridisThe present study investigates the effectiveness of a Proportional-Integral-Derivative (PID) controlled Variable Damping Semi-Active Tuned Mass Damper (VD-STMD) on reducing the vibration response of an earthquake excited multi-storey structure. The effectiveness of the controlled system is evaluated by comparing the structure’s overall dynamic behavior against that of an equivalent similar structure equipped with a conventional optimally designed passive Tuned Mass … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 4 · 30 Oct 2015 · 9,652 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPrototype-Based Sample Selection for Active HashingCheong Hee ParkSeveral hashing-based methods for Approximate Nearest Neighbors (ANN) search in a large data set have been proposed recently. In particular, semi-supervised hashing utilizes semantic similarity given for a small fraction of pairwise data samples and active hashing aims to improve the performance for ANN search by relying on an expert for the labeling of the most informative points. In this … …Journal of Computer Science, Vol. 11, Issue 7 · 2 Nov 2015 · 6,736 accessesView PDFCite
EditorialOpen accessIn the abstractNeutrophil Extracellular Traps as Therapeutic Targets for Inflammatory DiseaseRory R. KoenenNeutrophilic granulocytes, or neutrophils are the most abundant circulating white blood cell and constitute a first line of defense against pathogens. They are characterized by a large polymorphic lobular nucleus and the presence of many secretory granules in their cytoplasm. Neutrophils are essential for a functional host defense, as is evidenced by the occurrence of severe infections in individuals with … …American Journal of Pharmacology and Toxicology, Vol. 9, Issue 4 · 25 Feb 2015 · 8,737 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Different Drugs in Down-Regulation of Efflux Pump Genes expression in Methicillin-Resistant Staphylococcus aureus StrainsManu Chaudhary, Santosh Kumar Patnaik, Anurag PayasiAntimicrobial resistance caused by efflux systems is not widely studied in Staphylococcus aureus. In the present study, prevalence of NorA and NorB efflux pumps was studied in thirteen Methicillin-Resistant Staphylococcus aureus (MRSA) strains using a pair of primers with Polymerase Chain Reaction (PCR). Antibiotic susceptibility study in NorA and NorB efflux positive isolates was carried out according to the Clinical … …American Journal of Infectious Diseases, Vol. 10, Issue 4 · 7 Jan 2015 · 7,451 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeneral Circulation in the Malacca Strait and Andaman Sea: A Numerical Model StudySyamsul Rizal, Peter Damm, Mulyadi A. Wahid et al.In the Andaman Sea and Malacca Strait, as in other parts of the Indian Ocean, the seasonal change of the wind plays a most important role: the south-west (hereafter SW) is monsoon active from June through September and the north-east (hereafter NE) monsoon is active from December through February. During the NE monsoon the winds are directed from the north … …American Journal of Environmental Sciences, Vol. 8, Issue 5 · 11 Aug 2012 · 18,566 accessesView PDFCite
Research ArticleOpen accessIn the abstractLandscape Change and Sandy Desertification Monitoring and AssessmentEltahir Mohd Elhadi, Nagi Zomrawi, Hu GuangdaoProblem statement: The objective of this study is to develop techniques for assessing and analyzing sand desertification in the northern part of Shaanxi Province, China. Approach: In order to reveal the process of land degradation, especially the latest situation of sandy desertification, a method integrating remote sensing, Geographic Information System (GIS) and field survey was employed to build a sandy … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 7,124 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Phytochemical Contents and Antimicrobial Activities of Malaysian Calophyllum RubiginosumSuhaib Ibrahim ALkhamaiseh, Muhammad Taher, Farediah AhmadProblem statement: Many species of plants in Malaysia are widely used in folk medicine. However, Calophyllum species have been used in traditional medicine for their therapeutic values for many years. Several studies reported that antimicrobial, antifungal, anti-HIV and anti-cancer compounds were isolated from numerous Calophyllum species. Approach: The stem bark was extracted by EtOH, after with it was fractionated with … …American Journal of Applied Sciences, Vol. 8, Issue 3 · 25 Mar 2011 · 7,573 accessesView PDFCite