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289 articles for “Constraint”
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Research ArticleOpen accessIn the abstractJitter Characterization in Admission Control and Pricing Issues in Integrated Multiservice NetworksFabien Houéto, Samuel PierreThis paper analyses the pricing framework of multiservice networks and proposes an improved pricing scheme based on the effective bandwidth concept for taking into account quality of service parameters. Based on the deficiencies noted in the classical effective bandwidth scheme (intolerance to user uncertainty and no guarantee on jitter), we propose an improved charging function which gives more flexibility to … …Journal of Computer Science, Vol. 3, Issue 12 · 31 Dec 2007 · 7,030 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenetic Algorithms Connected Simulation with Smoothing Function for Searching Rule CurvesAnongrit Kangrang, Chavalit ChaleeraktrakoonRule curves are fundamental guidelines for operating a reservoir system. The objective of this paper is to find a suitable objective function and to propose a smoothing function constraint for searching the optimal rule curves by using genetic algorithms connected simulation model. The results show that an average water shortage is the optimal objective function for searching the optimal rule … …American Journal of Applied Sciences, Vol. 4, Issue 2 · 28 Feb 2007 · 7,487 accessesView PDFCite
Review ArticleOpen accessIn the abstractDisinfection of Water using Supported Titanium Dioxide PhotocatalystsShamkumar Pandurang Deshmukh, Dattatray Krishna Dalavi, Yuvaraj Mohan HungeTiO2 based photocatalyst has potential material for disinfection of harmful pathogens as well as removal of organic compounds. The formation of reactive oxygen species is a key part for overall process but aggregation and band gap constraint explore a new dimension to use of support for propounding its physicochemical properties. Therefore, the modification of TiO2 using various support alters photocatalytic … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 4 · 28 Dec 2020 · 7,266 accessesView PDFCite
Review ArticleOpen accessIn the abstractEffect of Certain Disinfectants and Antibiotics on the Biofilm Formed by Staphylococcus Aureus Isolated from Medical Devices at the University Hospital Center of Sidi Bel Abbes (Algeria)Ibtissem Kara Terki, Hafida Hassaine, Assia Kara Terki et al.Staphylococcus aureus is one of the species that are most frequently isolated from medical devices. The ability to produce a biofilm is an important step in the pathogenesis of these staphylococci; biofilm formation is strongly dependent on the environmental conditions and also on the antibiotics and disinfectants used in the treatment of infections. In this study, 28 staphylococcus aureus isolated … …American Journal of Infectious Diseases, Vol. 15, Issue 3 · 12 Sep 2019 · 7,173 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Comparison of Passive Fault Tolerant Control Strategy with PI and Fuzzy Control of Single-Tank Level Process with Sensor and System FaultHimanshukumar R. Patel, Vipul A. ShahFault-Tolerant Control (FTC) strategy has gain maximum attention in recent years in chemical industries due to economical and safety hazards perspective. Targeting at the decreasing control performance of the single-tank level control process under the constraint of system and sensor faults, this article presents model-based Passive Fault-Tolerant Control (PFTC) strategy which are based on conventional and artificial intelligence control. The … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 2 · 24 Jun 2019 · 7,606 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of the Impact of Obstacles on the Capacity of a LTE Network in Urban Area in the UplinkAkohoule Alex, Konate Adama, Brou Pacôme, Asseu OlivierPower control is a major issue in the deployment of 4G mobile networks. Indeed, environmental constraints (relief, Air, noise,...) affect the propagation channels of mobile network systems. The new multimedia services, which consume large amounts of radio resources (frequencies), then lead to an optimization of power control in the cellular coverage in the uplink direction. The aim is to optimize … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 1 · 17 Jan 2019 · 8,302 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacterization of the Earth's Surface State by Unsupervised Classification: Case of Vegetated, Aquatic and Mineral SurfacesJean-Claude Okaingni, Sié Ouattara, Adles Kouassi, Alain ClémentIn this study, we propose an unsupervised classification scheme based on the Dempster-Shafer Theory (TDS) and the Dezert-Smarandache Theory (DSmT) to characterize vegetated, aquatic and mineral surfaces. From pre-processed ASTER satellite images (georeferencing, geometric correction and 15 m re-sampling), neo-channels were produced by determining the spectral indices NDVI, MNDWI and NDBaI, considered as sources of information for classification of a … …American Journal of Applied Sciences, Vol. 15, Issue 7 · 27 Aug 2018 · 8,183 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Routing Optimization Based on Cross-Layer Design for Wireless Multimedia Sensor Networks (WMSNs)Emansa Hasri Putra, Risanuri Hidayat, Widyawan, Wayan MustikaMultimedia applications are routed from source nodes via neighboring nodes to a sink in Wireless Multimedia Sensor Networks (WMSNs). However, the existing routing protocols in the WMSNs do not fulfill the quality of service (QoS) constraint yet for multimedia transmission. The WMSNs have specific characteristics such as multi-hop way, limited node capability and varying bandwidth, which can affect the quality … …Journal of Computer Science, Vol. 13, Issue 10 · 31 Oct 2017 · 7,401 accessesView PDFCite
Research ArticleOpen accessIn the abstractFormal Credit and its Impact on Income - Evidence from the Poor Households in VietnamLe Trung Hieu, Pham Tien ThanhThe poor households are normally financial constrained, which inhibits them from income-generating activities. Formal credit market in Vietnam has been more and more improved and thus the poor households can be more accessible to formal sources. Thenceforth, they can relax their financial constraint and then invest in on-farm or off-farm activities to generate income and escape poverty in longer run. … …American Journal of Applied Sciences, Vol. 14, Issue 7 · 20 Jul 2017 · 8,305 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessing the Environmental and Socio-Economic Risk Factors of Climate Vulnerability in Low-Income Settlements of Kitwe City in ZambiaGeorge Kasali, Julius Kanyembo, Mapenzi Phiri, Mainza SibajeneRecent findings of the Intergovernmental Panel on Climate Change have clearly shown that climate change represents an urgent and irreversible threat to human societies and the planet and especially to the social and economic development of Africa.Therefore, the purpose of this study was to determine and identify the risk factors associated with climate vulnerability in selected slum settlements of Kitwe … …American Journal of Environmental Sciences, Vol. 13, Issue 2 · 25 Mar 2017 · 8,187 accessesView PDFCite