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1971 articles for “Macrotermes sp” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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An Investigation of Stress and Deformation States of Rotating Functionally Graded Spherical Pressure Vessels
Abstract: The present study deals with the analysis of rotating spherical pressure vessels made of functionally graded materials (FGMs). Material properties are graded along the radial direction, which is achieved by varying volume fractions of the constituting materials according to Mori-Tanaka scheme. Shells are subjected to hydrostatic internal pressure and have free boundary condition at the outer surface. Governing equations are derived using principle of stationary total potential. The effects of …
Published in Journal of Experimental & Applied Mechanics · Vol. 8, Issue 3, 2017 · pp. 19–27 Read article
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Earth Tube Heat Exchanger for Space Heating and Cooling: a Review
Abstract: AbstractMaking heating and cooling policies for good climate regions societies should think the requirement of present cities as well as traditional agriculturalists. Successful heating and cooling modes must be economically reliable in both urban and rural areas setups as well as environmentally friendly and sustainable. One low energy option for conditioning space is to allow ambient air to pass through the earth pipe, which is long-buried tube inside the upper …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 9, Issue 2, 2019 · pp. 11–22 Read article
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Identification of Accident Hot Spots at Different Roads of Midnapore Municipality Area: A Geoinformatic Approach
Abstract: Road traffic injuries (RTIs) are a huge public health and development problem, killing almost 1.2 million people a year and injuring or disabling almost 20 to 50 million or more. Both WHO and World Bank data show that without appropriate action these injuries will rise dramatically by the year 2020, particularly in rapidly-motorizing countries. The study identifies the volatile traffic areas where road accidents are almost regular events and assess …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 1, 2014 · pp. 20–38 Read article
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Reducing Power And Improving The Speed Of Beacon Based Sdrs Using Reconfiguration Based Multirate Sampling
Abstract: AbstractIn this high-tech world the software-defined radio (SDR) plays a crucial role by increasing its applications in different sectors. The efficiency of the present software-defined radio platforms is declining gradually due to the developing wireless technologies and their increased efficiency has made the old software-defined radio less efficient. In this work, we are recommending a reconfigurable method which is proficient to increase the speed of the system by reconfiguring the …
Published in Journal of Instrumentation Technology & Innovations · Vol. 7, Issue 3, 2017 · pp. 5–10 Read article
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Speed Control of PMSM using Optimization Methods
Abstract: AbstractThis paper represents a modelling and optimized design of speed control for a permanent magnet synchronous motor (PMSM). The PI controller of inner current loop is optimized using evolutionary algorithm like Particle Swarm Optimization (PSO) method. To illustrate effect of proposed method, the performance of evaluationary algorithm is compared with traditional optimization method i.e., Ziegler-Nichols method. The main objective of the proposed work are, develop mathematical modelling of PMSM motor …
Published in Journal of Microcontroller Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 8–16 Read article
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A Novel Design for High Speed & Area Efficient Compressor Based Vedic Multiplier
Abstract: Multipliers are the most important part in any arithmetic and logic unit, AbstractMultipliers are the most important part in any arithmetic and logic unit, accumulators and digital signal processors. Due to the increasing constraints on delay, the design of faster multipliers is emphasized. Among several multipliers, Vedic multipliers are preferred for their speed of operation. Here the proposed Vedic multiplication techniques are based on “URDHVA TIRYAKBHYAM” a fast and efficient …
Published in Journal of Microelectronics and Solid State Devices · Vol. 5, Issue 3, 2018 · pp. 1–10 Read article
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Experimental Testing and Ply Wise Strength 0°-45°-0° Investigation of Multi-orientation Carbon Fiber Specimen by Using FEA and UTM
Abstract: Synthetic composites have higher strength to weight ratio and are extensively used in industrialapplications. Carbon fibers have extensively high tensile strength. Most of the composites haveorthotropic properties and their strength varies as per orientation. Laminar having differentply orientations have different properties and strengths. Hence, to enhance strength of carbonfiber specimen reducing layer wise damage becomes up most important. It is unimaginable toexpect to examine the layer insightful harm of each …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 29–37 Read article
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Chemical Synthesis, Spectral Characterization and Electrical Conductivity Behavior of Poly(2-Methoxyaniline-Co-2-Chloroaniline) and its CuO Nanocomposite and Polypropylene Glycol Blend
Abstract: AbstractCopolymerization of 2-chloro aniline and 2-methoxy aniline was achieved chemically by oxidative polymerization technique using ammonium persulphate as the oxidizing agent in acidic medium in the presence of sodium lauryl sulphate, an anionic surfactant. Copolymerization was also carried out in the absence of the surfactant to study the effect of surfactant on the thermal stability and electrical conductivity. The copolymer composite with CuO nano particles and blend with poly propylene …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 1–13 Read article
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Tribological Behaviour of En 31 Bearing Steel Against Altin, Alcrn and Crn Coated High Speed Steel
Abstract: Mechanical parts like bearing in modern machining systems are often subjected to wear and friction causing high heat generation at the interacting zones leading to reduced lifecycle and increased energy consumption of machinery. In this investigation friction and wear characteristics of bearing material EN31 steel against the CrN, AlCrN and AlTiN deposited on high speed steel as counter material is presented. Tribological tests are conducted on a pin on disc …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 97–108 Read article
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Design and Simulation of Fuzzy Logic Based Speed Control of Electrical Vehicle with Induction Motor Taking Core Loss and Stray Load Losses into Account
Abstract: In modern technology, electrical differentials to design electrical vehicle are getting popular for its simplicity, faster response, accurate control capability and other facilities. The controller design for the distinctive motors is a captivating and challenging work to acquire, sought execution appropriately. For this, different kind of controller is used to get accurate results. For induction motor, it is very important to control the speed and torque to get smooth control …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 1, 2017 · pp. 41–48 Read article
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Modeling and Control of A Grid Connected Wind Turbine Power System Under Variable Wind Speeds Using Doubly-Fed Induction Machine
Abstract: This paper focuses on the development of wind turbine system and extracting maximum power for variable speed constant frequency grid connected wind turbine power system with doubly fed induction generator. A voltage oriented control scheme is used for the control of both rotor side and grid side circuit. Pitch control mechanism is implemented for the power limitation at a wind speed greater than the rated speed. The DFIM stator side …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 108–124 Read article
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Design Simulation and Analysis of Zeta Converter for Speed Control of BLDC Motor
Abstract: In recent years, usage of variable speed drive systems has been increasing in various low power applications like automobile industries, domestic appliances, etc. To save the energy consumption of devices, there is a necessity in the usage of green and eco-friendly electronics. For improvement in power factor and speed control, BLDC with Zeta converter is proposed in this paper. Zeta converter is used for voltage regulation due to its wide …
Published in Journal of Power Electronics and Power Systems · Vol. 11, Issue 3, 2021 · pp. 17–32 Read article
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An Efficient RNS Based Sparse Kogge Stone Parallel Pre-fix Adder with Filter
Abstract: AbstractLow power very large-scale integration (VLSI) circuits are important for designing of high performance and portable devices. Along with that the high speed, small area and low cost are also the main considerations of VLSI circuits. The importance of low power is increasing day by day because of changing trend, packaging and cooling cost, portable system and reliability. This paper presents the design of Digital FIR filter using reverse converter …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 1, 2018 · pp. 43–51 Read article
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Tracking of Maximum Power Point for SPV Systems
Abstract: AbstractThis paper presents the optimization algorithm based maximum power point tracking techniques. Optimization of output of shaded and un-shaded photovoltaic array under either it is static or dynamic whether condition is the primary goal of each MPPT techniques. There are various aspects of each MPPT techniques such as cost effectiveness, simplicity of hardware and software, its implementation, requirement of sensor, level of popularity, level of accuracy and its convergence speed. …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 3, 2019 · pp. 33–45 Read article
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A RELIABILITY STUDY ON A SYMMETRIC TWO-SPAN I - STEEL BEAM
Abstract: In this paper, a reliability study is carried out on a symmetric two-span I-Section steel beam using the First Order Reliability approach. The ultimate limit state of bending moment, shear stress and local buckling of web were the design criteria considered in the reliability index estimation. A Matlab code was developed based on the performance functions developed for the various failure modes and a Matlab optimizer, fmincon, was invoked in …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 1, 2019 · pp. 18–27 Read article
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Safety Analysis of A Three Span Reinforced Concrete Beam
Abstract: In this study, the safety analysis of a three- span reinforced concrete beam supporting a classroom block is carried out considering the failure of the beam in bending, shear and deflection in accordance with the provision of BS8110 (1987). The failure functions were developed based on bending, shear and deflection were solved to obtain the design points using a Matlab code. A sensitivity analysis was conducted on the design parameters …
Published in Journal of Structural Engineering and Management · Vol. 10, Issue 2, 2023 · pp. 31–46 Read article
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Navigating the Spectrum: A Review of Challenges and Opportunities in Wireless Network Densification for 6G Technology
Abstract: Each generation of wireless communication technology brings new and exciting features. However, the latest technology is not able to fully support the continuous increasing demand for wireless communication in 2030. To address the issues posed by the growing number of devices and the volume of voice and data communications traffic, a significant amount of research is needed. End-device (ED) and base station (BS) densification in Wireless (WND) will be impacted …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 10, Issue 3, 2023 · pp. 25–30 Read article
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Characterization of High Speed Phase Frequency Detector Circuit
Abstract: In this paper the performance of high speed phase frequency detector (PFD) is analysed. A high-speed PFD reduces the power consumption of traditional PFD to 0.423 nW at 1 GHz clock frequency and dead zone to 2 ps. It is suitable for low power applications. A PFD uses only 18 transistors. This PFD operates up to 1 GHz at 1.2 V supply voltage. The proposed architecture of the PFD has …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 1, 2015 · pp. 51–58 Read article
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Design of High-Speed TIQ Comparator for Flash-Type ADC for (WPMOS/LPMOS) > 1
Abstract: Comparator is the circuit that compares an analog signal with the reference signal and produces the binary output based on comparison. A Comparator is the main block in the ADC design as it directly affects the conversion rate of an ADC. Depending on the type and architecture of the comparator, the comparator can have significant impact on the performance of the target application. The speed and resolution of an ADC …
Published in Journal of VLSI Design Tools and Technology · Vol. 4, Issue 2, 2014 · pp. 47–52 Read article
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High-speed CMOS ADCs Design
Abstract: This paper presents the design of high-speed subranging and flash analog to digital data converters (ADC) including the design of efficient operational amplifier to meet the performance requirements of these data converters for the specifications laid down targeted to the SCL 1.2 μm CMOS Foundry. The design starts from the specification of the circuit, its theoretical analysis for the parameter estimations of the transistors as well as the circuit’s design. …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 59–74 Read article