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1093 articles for “IDEAS”
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Hardware Implementation of a Multistage Low Pass Sigma Delta Modulator
Abstract: The overall objective of this paper is to describe the design, simulation and observation of the hardware implementation of a multi stage low-pass sigma delta modulator on FPGA architecture using modelsim. The objective of this paper is shown first by describing a low-pass multistage for D/A sigma delta modulator. The next step involves a detailed evaluation of various accumulator based MASH structures which is then modeled in MATLAB and SIMULINK …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 3, Issue 3, 2015 · pp. 13–21 Read article
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Boat Security System (BoSS)
Abstract: In this research paper, the proposed concept is to safeguard the uneducated fisher men crossing the border and guides them to go in a right path and save their life. Our proposed idea helps in locating the fishing boat using GPS system, XBEE and PIC controller. GPS (Global Positioning System) is increasingly being used for a wide range of applications. It provides reliable positioning, navigation, and timing services to worldwide …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 5, Issue 1, 2017 · pp. 23–26 Read article
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Performance Evaluation of Thermoacoustic Refrigeration System
Abstract: Today cooling technologies are going through a transformation phase. The advent of ozone layer depletion and global warming caused by the use of synthetic refrigerants has necessitated a search for alternative cooling technologies. Out of the several technologies which are emerging as alternatives, one technology that can provide cost effective refrigeration without using any of the environment degrading refrigerants is the thermoacoustic refrigeration system. Ideally, this device can be powered …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 1, Issue 1, 2014 · pp. 22–29 Read article
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Design of Ventilation and Air Conditioning for 50 Ton Bollard Pull Utility Tug Built for Indian Navy
Abstract: Abstract The current work deals with the design of ventilation and air conditioning for utility tug which is built for the Indian navy by HSL considering previously built values of the tug, which was approved. The main purpose of this project is to reckon the heat load calculations for air-conditioning and ventilation heat load calculations of the utility tug. The calculations were performed on the basis of some professional organizations …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 1, 2016 · pp. 23–31 Read article
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Aqua Search – A New Metaheuristic Modified Firefly Algorithm for Topology Optimisation of Continuum Structures
Abstract: Abstract The focus of the paper is to propose a new search algorithm which requires less computational effort to perform topology optimisation of continuum structures. The basic idea is based on performing underwater search operations by a group of divers in a school. This algorithm is named as Aqua Search (AS). The design domain here is compared to the water body. The AS algorithm is an improvement over the conventional …
Published in Journal of Offshore Structure and Technology · Vol. 3, Issue 3, 2016 · pp. 32–37 Read article
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Controversial Issues of Security in Wireless Sensor Network
Abstract: Wireless Sensor Network (WSN) is an emerging technology which shows a very good number of valid futuristic applications both for common people and military. As wireless sensor networks continue to grow, so does the need for effective security mechanisms. Wireless sensor networks are quickly gaining popularity due to the fact that they are potentially low cost solutions to a variety of real-world challenges. The basic idea of a sensor network …
Published in Recent Trends in Sensor Research & Technology · Vol. 1, Issue 1, 2014 · pp. 1–7 Read article
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An Efficient RLT based Multinode Wireless Energy Charging in Sensor Networks
Abstract: The new generations of networks are sensor networks which typically consist of a large number of nodes that are connected wirelessly. The main idea of these types of networks is collecting data around the network's sensors. Since the sensors nodes work with the battery and there is no possibility to change or recharge these batteries, the life time of these networks depends on the sensors energy. However, multihop networks suffer …
Published in Recent Trends in Sensor Research & Technology · Vol. 3, Issue 2, 2016 · pp. 1–6 Read article
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Maximization of Spectrum Efficiency Using PSO, HPSO-GA Algorithms for Cognitive Radio
Abstract: A cognitive radio (CR) is an intelligent radio that can be programmed and configured dynamically. Its transceiver is designed to use the best wireless channels in its vicinity. Such a radio automatically detects available channels in wireless spectrum by the process of spectrum sensing, then accordingly changes its transmission or reception parameters to allow more concurrent wireless communications in a given spectrum band at one location. This paper discusses the …
Published in Recent Trends in Sensor Research & Technology · Vol. 3, Issue 2, 2016 · pp. 19–28 Read article
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Interference Effect Analysis of Pilot Contaminated Massive MIMO Downlink with Different Pre-coders and Channel Estimation
Abstract: A new idea in cellular MU-MIMO is the use of large numbers of BS antennas to serve several single-antenna terminals simultaneously. In multi-cell environments, adjacent cells using the same spectrum cause a pilot contamination problem and degrade signal quality. This pilot overhead can be reduced by reusing pilot sequences in nearby cells; however, this potentially introduces interference in the channel estimation phase, the so-called "pilot contamination" effect. The achievable rate …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 4, Issue 2, 2017 · pp. 1–9 Read article
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Analysis of Operational Transconductance Amplifier using 180 nm Technology CMOS Process
Abstract: Today, it is laborious to design an amplifier with low power utilization, high gain and high bandwidth. ICs industries are growing very fast and it is challenging for day by day growth to provide a better design with all accuracy. It is advisable to design an amplifier with an ideal way. Amplifiers are most essential unit of the analog circuitry; differential amplifier performs very well as input amplifier. Transfer characteristic …
Published in Journal of Microelectronics and Solid State Devices · Vol. 1, Issue 1, 2015 · pp. 10–13 Read article
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Study of Energy Conversion System Using a Magnetic Fluid: An Overview
Abstract: Magnetic fluids have promising potential for direct energy conversion system. Magnetic fluids are stable suspension of nano-sized ferromagnetic particles in suitable non-magnetic carriers like kerosene, organic liquids, water etc. The typical curie temperature of magnetic particles is controlled by selecting constituents of the ferromagnetic material. There are large numbers of practical applications of magnetic fluids in various fields ranging from engineering to medicine. A thermomagnetic device gives an idea of …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 1, 2016 · pp. 15–22 Read article
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Effect of Barrel Radius on the Billet in the Upsetting Process
Abstract: Upsetting is of significance for hypothetical and experimental studies in a metal forming procedure. The need of friction between the dies and the work piece leads to cylinder barreling and lateral expansion of the specimen is at extreme at equatorial section and least at the end. This work utilizes Taguchi method with the up gradation of the procedure parameter in charge of the non-uniform hardness distribution inside the tube shaped …
Published in Recent Trends in Fluid Mechanics · Vol. 3, Issue 3, 2016 · pp. 23–30 Read article
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Gold Nanoparticles: Preparation, Characterization and Its Stability in Buffer
Abstract: Among the colorimetric detection tactics, metallic nanoparticle based detection is gaining more attention due to quickness and less resource requirement at the point of use. Unique chemical inertness, shape, size and optical attributes of gold nanoparticles (GNPs) make them ideal for various diagnostic tools. In this approach synthesized GNPs were stabilized by citrate counter ions. These GNPs were characterized for their optical properties, shape, size, zeta potential, and dynamic light …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 17, Issue 1, 2015 · pp. 1–10 Read article
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Report on the Nanoelectronic-Designs of the High Electron Mobility Transistors by a Certain Range of Simulation-Studies in the IMPRINT-Project of the Government-of-India
Abstract: In this report, total 10755 individual simulation-outputs are reported according to the performed simulation studies on the nanoelectronic aspects of the high electron mobility transistors (HEMTs) by the nanoelectronic-designs of these advanced semiconductor devices in the purpose of the advancement of ‘science and engineering’ in this IMPRINT-Project as officially started on 3rd October 2016 at 03:00:00PM. This series of simulation work has been performed using the SILVACO-ATLAS software tool on …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 18, Issue 3, 2016 · pp. 36–58 Read article
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THERMODYNAMIC SIMULATION OF PERFORMANCE OF ATKINSON CYCLE WITH VARIATION OF CYCLE PEAK TEMPERATURE & SPECIFIC HEAT RATIO OF WORKING FLUID
Abstract: Thermodynamic analysis of an ideal air-standard Atkinson cycle with variable specific heat is presented in this paper. The paper outlines the effect of specific heat of working fluid and peak temperature of the cycle on the performance of the cycle efficiency and work output. It showed significant effect on the performance of the cycle over the constant specific heat model. The results obtained from this work can be helpful in …
Published in Trends in Mechanical Engineering & Technology · Vol. 1, Issue 1, 2011 · pp. 22–27 Read article
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Effect of Risk Priority Number Values for Multiple Effects in Maintenance Optimization
Abstract: In this paper, authors describe an optimization framework for finding optimal maintenance policies in continuous process operations and analyze and quantify the reaction of different variables on optimal maintenance schedules. A necessary idea behind maintenance optimization is that of life-cycle costing, where the total cost of design, building, maintenance, is considered over the entire life span of the system or structure in question. The system’s effectiveness measure is introduced which …
Published in Trends in Mechanical Engineering & Technology · Vol. 2, Issue 2, 2012 · pp. 1–5 Read article
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Incomplete Information and Expected Performance Characteristics of Heat Engines
Abstract: In this paper, a connection between Bayesian statistics and the optimal performance characteristics of thermodynamic heat cycles is proposed. In particular, the subjective ignorance about internal energy scales of the working medium, quantified as a prior distribution leads to an expected behaviour of heat cycles which shows some remarkable thermodynamic features. It is shown that efficiency at maximum work is closely related to Curzon-Ahlborn (CA) efficiency. This efficiency usually appears …
Published in Trends in Mechanical Engineering & Technology · Vol. 4, Issue 3, 2014 · pp. 17–24 Read article
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Evaluation of Epoxy Granite as an Alternate Material for Lathe Bed
Abstract: Machine Tool is a machine that gives the desired shape to the work with required accuracy of removing metal from the work in the form of chip. Beds, columns, bases, head stock are known as ‘structure’ in a machine tool. The Lathe Bed should be sufficiently rigid to prevent deflection under tremendous cutting pressure transmitted through the tool-post and carriage to the Lathe Bed. It must be massive with sufficient …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 59–68 Read article
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Advances in Wound Healing Products and Procedures: A Review
Abstract: Victorious wound care involves optimizing patient’s local and systemic conditions in combination with an ideal wound healing environment. Numerous products have been developed till date to influence this wound environment and to provide a pathogen-free, protected, and an area free from moisture for healing to occur in acceleration. Many novel products are being introduced to replace or augment various substrates in the wound healing cascade. With the abundance of available …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 7, Issue 2, 2016 · pp. 40–51 Read article
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Performance Improvement of Solar Photo-Voltaic Panel
Abstract: The study of solar photovoltaic panels was carried out with the main objective of increasing their performance efficiency. Methods studied include Cooling effect (using liquid, generally water) on Solar P.V. panel, Cooling effect (using air) on Solar P.V. panel, Shading effect of a Photo-Voltaic panel and Reflection and focusing of sunlight on Photo-Voltaic panel. It deals with the idea of reducing the temperature of solar panel using water or air …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 5, Issue 3, 2014 · pp. 23–29 Read article