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97 articles for “Chakra”
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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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Design and Development of Remote Controlled Semi-Autonomous Robot for Bomb Defusion
Abstract: Mechanical testing plays an important role in the development of army.Accordingly, the aim of this project is utilize a defence robot for bomb diffusal applications. Autonomous Robots have gained their popularity due to economic production, flexibility of launch and variety of applications. In this paper a new approach for development of Autonomous rocker bogie robot is presented. The robot uses powerful brushless DC motors, electronic speed controller (ESC), GPS system, …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 1, 2015 · pp. 25–31 Read article
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Response of Sea Water Immersed GFRP Composite to Thermal Shock
Abstract: The work involves examining the effects of sea water immersion and temperature fluctuations, precisely that of up and down thermal shocks (lower to higher and vice-versa), on the glass fiber /epoxy laminated composites. These effects are studied in terms of sea water absorption, degradation in inter laminar shear strength (ILSS), alternations in the glass transition temperature (Tg) as compared to the untreated samples and finally listing up of the mode …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 1, 2013 · pp. 34–41 Read article
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Advance green fiber reinforced thermosetting composites for reliable assistive device fabrication
Abstract: The biodegradable green fibers derived from natural plants are abundantly available and are currently considered as potential reinforcements. Present study aims at investigating the mechanical properties of green jute fiber reinforced thermoset composites as possible alternatives to the inorganic glass fiber reinforced prosthetic assistive device. Continuous green jute fiber are treated with sodium hydroxide and acetic acid, and then added to epoxy and polyester at varying fiber loadings to produce …
Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 2, 2020 · pp. 1–8 Read article
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Origins of Several Foam Ample Forms in Materials Science
Abstract: Foam culture refers to the light weight philosophy for the additional subject released from appropriate specific performance in relation to the environment. Regular study has been done to actualize the subject required under ballistic strength of degeneration issues. The cases studied in this article were from polymer functional ceramic issues as well as originating flexible regions. Though, water-purification areas on the coast have origins Ni-nano that uses carbon-tubed analogs to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 10, Issue 3, 2020 · pp. 32–36 Read article
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Progress of Graphene/Silicon Solar Cells-Present Status & Future Prospect
Abstract: The ever-increasing demand for next-generation high efficiency low cost solar cell has triggered interest to search for new materials which are easily available, environmentally benign as well as cost-effective. In this context, graphene has attracted tremendous importance due to its outstanding optical, electrical and mechanical properties, for possible application in future graphene/silicon Schottky and heterojunction solar cells. Significant progress has been noted as the power conversion efficiency of such cells …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 3, 2020 · pp. 19–29 Read article
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Comparative study of Drain current of Symmetric and Asymmetric DGMOSFET with simulation in Silvaco_TCAD Software
Abstract: For nano regime devices the double gate MOSFET is one of the most promising and attractive devices. The main idea of a Double Gate MOSFET is to control the Si channel very efficiently by choosing the Si channel width to be very small and by applying a gate contact to both sides of the channel. This concept helps to suppress short channel effects and leads to higher currents as compared …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 1, 2021 · pp. 1–13 Read article
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Reddish-orange Emission in Pr3+-V4+ Doped Ions in Calcium Lead Borosilicate Glasses for Photonics and Sensor Applications
Abstract: CaO-PbO-B2O3-SiO2:Pr2O3-V2O5 synthetic glasses were made using a traditional melt-quench method. In the UV-vis-NIR range, the optical absorption spectra show distinct transitions from different energy levels where simple Pr3+ ions are present. The absorption transition of V4+ ion identity exhibit 2T2g®2E2g (spin-allowed) single transition in the UV-vis region Because of the presence of the paramagnetic VO2+ ion, the EPR spectra showed high intensity hyperfine splitting of two sets of eight lines …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 3, 2024 · pp. 33–50 Read article
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Nano-mechanical and viscoelastic behavior of advance ultrafine graphite reinforced unsaturated polyester based prosthesis layup resin
Abstract: A new durable biomedical composite for prosthesis was designed to obtain enhance mechanical and viscoelastic properties, in particular nanohardness and young’s modulus. The nanoindentation technique was employed to investigate nano-scale mechanical properties of unsaturated polyester resin and its advance prosthesis lay-up nanocomposite resin with different amount of exfoliated graphite fillers loading. It has been observed that the young’s modulus of the nanocomposites gradually increase with increasing amount of reinforcement content. …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 2, 2020 · pp. 7–15 Read article
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Studies of Tin Whisker Formation and Destruction
Abstract: This article contains whisker growth in current implements considered in electronics packaging. These surface relief growths are said contemporarily to prevent and save devices after Pb abatement. Vacancy flux at crack created from compressive stresses cause mass transfer to guide oxides for direct and control of whiskers. Logical subject to shift mass from equiax to migrating morphologies of equiax such as columns. Criteria from past theories for Sn whisker growth …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 7, Issue 3, 2020 · pp. 26–34 Read article
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Design, Analysis and Comparison of Conventional and Millimeter Wave Antenna
Abstract: A parameter study was performed of a novel printed quasi-Yagi antenna with regard to its design at microwave and millimeter wave frequencies and its application. A rectangular-shaped slot was incorporated into patch and Yagi antenna as a patch was used with a coplanar waveguide (CPW) as a feeding structure. Using same structure with different dimensions, the increment in frequency from 4.4 GHz to 30 GHz and the antenna gives better …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 3, Issue 1, 2016 · pp. 20–24 Read article
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Power Market Management and Grid Controls Platforms with Integrating Third Party Owned DER
Abstract: In the deregulated electricity market, many Individual Powers Produces (IPP)/Distributed Energy Resources (DER) compete to sell the power. Grid and power flow controlling is a challenging task. In deregulated scenario many market model, according to that the power-flow control has to be done looking at the Available Transfer Capacity (ATC) in the lines. FACTS controllers are well suited to control the active power by injecting/absorbing the reactive power from the …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 7, Issue 3, 2020 · pp. 24–30 Read article
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Network protection in India: An Advancing Worry for Public safety
Abstract: Network protection has turned into a mind boggling and quick security challenge in the time of Data Correspondence and Innovation (ICT). As the reliance on ICT is developing across the globe, cyberthreats show up liable to infiltrate each niche and corner of public economies and framework; for sure, the developing reliance on PCs and Web based systems administration has been joined by expanded cyberattack episodes all over the planet, focusing …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 9, Issue 3, 2022 · pp. 1–7 Read article
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A New High Speed Low Power 1 Bit Full Adder
Abstract: This paper proposes a low power, low area and high speed 1-bit full adder compared to earlier 1bit full adder designs. The adder comprises of eight transistors with some modifications over the other existing design, so that it can invariably be used in the device with least nano device dimensions. The proposed design exhibits lower threshold loss and works faithfully in sub-threshold regime with appreciable voltage swing at lower power …
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 1, 2013 · pp. 8–13 Read article
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Power Reduction at 90 nm through Circuit Level Modification
Abstract: Along with dynamic power, leakage power has turned out to be a major contributor to the overall power consumption in VLSI circuits. This problem is even more stringent in nano-scale dimension devices according to the International Technology Roadmap for Semiconductors (ITRS). As the technological advancements demand more function per device with a significant shrinking in device dimension, heat per unit area is also escalating at an elevated rate. This turns …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 101–107 Read article
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Performance Analysis of Fe/SiO2/Fe MTJ and Ni/Al2O3/Ni MTJ-based Magnetoresistive Random Access Memories (MRAMs)
Abstract: This paper reports the first principle simulations of Fe/SiO2/Fe and Ni/Al2O3/Ni magnetic tunnel junctions (MTJs). A performance analysis has been done based upon the device-level simulations of the two magnetic tunnel junctions followed by the circuit level simulations of magnetoresistive random access memory (MRAM) cell operating with the two MTJs respectively. From the device-level simulations, the two MTJs have been compared with regard to the bias dependence of TMR ratios, …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 92–100 Read article
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Behavioral Assesment of Nanoinsertions in Cement Mortar
Abstract: In this paper is reported a comparative behavior of the 28days and long-term mechanical strength of nano additions to cement mortars w.r.t. ordinary controlled cement mortars. Nanomaterials are constantly being used to upgrade everyday products which are in constant use by us. It is seen that when these materials are singly added in optimized proportions to cement mortar they enable an enhancement of compressive strength at 28 days and also …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 15–21 Read article
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Comparative Study of Geopolymer Paste Prepared from Different Activators
Abstract: The present paper explores the comparative study of the geopolymer paste resulting from different alkali activations. In this experimental study, four series of geopolymer pastes differing in the alkali activation were manufactured by activating low calcium fly ash. These activators were subjected to a certain temperature of 35 °C for duration of 24 h. After casting of the specimens, activated by those activators, they were subjected to 85 °C for …
Published in Recent Trends in Civil Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 9–18 Read article
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Simple Gain Model of Group III-V Semiconductor-based Laser Diode
Abstract: In these days, a layer of low bandgap material is sandwiched between two high bandgap layers.Most commonly-used pair of materials is gallium arsenide (GaAs) with aluminium galliumarsenide (AlGaAs) and Indium Phosphide (InP) with Indium gallium arsenide phosphide(InGaAsP) laser. A heterostructure is the junctions between different bandgap materials. Here,two such junctions are present, hence it is called the name "double heterostructure laser" orDH laser. The kind of laser diode may be …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 3, 2020 · pp. 9–27 Read article
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Test methodology for validating drop arm of a tractor mechanical steering system under bi-axial loading
Abstract: The drop arm is a part of tractor mechanical steering system which connects the steering gearbox to drag link. The function of the drop arm is to convert the rotary motion of the steering gear shaft into linear motion of the drag link. During vehicle testing in the field drop arm failure was observed, which was not captured in the component level testing. Typically drop arm durability test is carried …
Published in Trends in Mechanical Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 74–81 Read article