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360 results for “control parameter”
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Research ArticleOpen accessAll words, across the recordVehicle-Fixed-Frame Adaptive Controller and Intrinsic Nonlinear PID Controller for Attitude Stabilization of a Complex-Shaped Underwater VehicleChanaka Thushitha Bandara, Lakmali Nadeesha Kumari, Sanjeeva Maithripala, Asanga RatnaweeraIn this study we present attitude stabilization using a vehicle-fixed-frame adaptive controller and an intrinsic nonlinear PID controller for a low-speed Autonomous Underwater Vehicle (AUV), of complex shape. Controlling an AUV poses a huge challenge because of the non-linearity, time variance and unpredictable external disturbance, as well as because its dynamics and hydrodynamic parameters are difficult to identify due to … …Journal of Mechatronics and Robotics, Vol. 4, Issue 1 · 7 Dec 2020 · 6,987 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordPhysico-Сhemical Parameters of Humic Substances of Brown Coal and their Effect on the Growth of Phoenix dactyliferaDamilya Konysbaeva, Bolat Yermagambet, Zhanar Kassenova et al.The motivation for the study was the need to obtain data on the effect of humic acids isolated from brown coal on soil fertility and plant development. In our study, we conducted experiments with plants to isolate humic substances from brown coal and study its physicochemical properties and the effect of the resulting fraction on the growth of Phoenix dactylifera … …OnLine Journal of Biological Sciences, Vol. 23, Issue 4 · 21 Sep 2023 · 4,936 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordEffects of Some Heavy Metals in Some Morpho-Physiological Parameters in Maize SeedlingsSali Aliu, Bekim Gashi, Imer Rusinovci et al.Nowadays the heavy-metal pollution of the soil is causing ever greater problems, exacerbated by the fact that the heavy metals accumulated in plants may, either directly or indirectly, find their way into animals and human beings. Maize is one of the world’s most important crops, ranking third after wheat and rice, so the changes induced by one of the most … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 1 · 18 Mar 2013 · 8,430 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordVoice-Based Control of a DC Servo MotorHammam Mahjoub, Musaab Hassan, Mohammed ObedProblem statement: Motors play a very important role in our life and among which is the DC servo motors. The techniques of controlling these DC motors are plenty, among which is sound. In this study, a voce-based technique was implemented to control the speed and the direction of rotation for a DC motor. Approach: A Microcontroller-based electronic control circuit was … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 1 · 4 Jun 2012 · 9,099 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordThe Influence of Garcinia kola Seed on Sexual Behavior and Testis Physiology in Wistar RatsJonah Sydney Aprioku, Victor Nwachukwu, Blessing Ukamaka Okeke et al.Garcina kola seed is believed by some to enhance male sexual performance but existing scientific data show divergent results. In this study, the sexual and reproductive influence of ethanol (70%) seed extract of G. kola was evaluated in Wistar rats. Adult male rats were gavaged with 0, 50, 100, 200 or 300 mg kg-1 day-1 of extract for 30 days … …American Journal of Pharmacology and Toxicology, Vol. 13, Issue 1 · 25 Apr 2018 · 13,804 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordEffect of Bromocriptine and Nano-Bromocriptine on Egg Quality Parameters of Late Laying HensAhmed Dawod, Noha Osman, Hanim S. Heikal, Hamada MahboubThe study was conducted to determine the effect of bromocriptine and nano-bromocriptine on external and internal egg qualities of late laying hens. A total of 150 Novo-gene brown strain hens of 70 weeks of age were selected from a commercial laying farm. The birds were divided randomly into three groups, with 50 birds in each. The first group was given … …American Journal of Pharmacology and Toxicology, Vol. 16, Issue 1 · 30 Sep 2021 · 6,751 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordForecasting and Modelling Electricity Demand Using Anfis PredictorM. Mordjaoui, B. BoudjemaProblem statement: Load forecasting plays an important task in power system planning, operation and control. It has received an increasing attention over the years by academic researchers and practitioners. Control, security assessment, optimum planning of power production required a precise short term load forecasting. Approach: This study tries to combine neural network and fuzzy logic for next week electric load … …Journal of Mathematics and Statistics, Vol. 7, Issue 4 · 14 Sep 2011 · 7,811 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordPhysiological Study on the Effect of Acalypha wilkesiana Leaves Extract on Streptozotocin-Induced Experimental Diabetes in Male MiceAtef M. Al-AttarProblem statement: Diabetes mellitus is a chronic disease that causes serious health complications and it is now one of the most common non-communicable diseases globally. It is the fourth or fifth leading cause of death in most high-income countries and there is substantial evidence that it is epidemic in many economically developing and newly industrialized nations. Recently, there has been … …Current Research in Medicine, Vol. 1, Issue 1 · 30 Jun 2010 · 74,606 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordA Policy-Based Admission Control Scheme for Voice over IP NetworksSami Alwakeel, Agung PrasetijoProblem statement: In Voice Over IP (VOIP) network, when more calls are admitted to the network, more voice packet traffic is created. Since bandwidth is always limited, this may result network congestion and/or may affect voice quality. Thus, we needed a mechanism for improving the Quality of Service (QoS) by controlling VOIP calls admission. Approach: Given a specified bandwidth and … …Journal of Computer Science, Vol. 5, Issue 11 · 30 Nov 2009 · 6,609 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordJitter 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 · 7,028 accessesView PDFCite