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1980 articles for “MQ-6 Gas Sensor” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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COMPOSITION, RADIATION DOSE AND TEMPERATURE DEPENDENT DEGRADATION STUDIES OF POLYAMIDE 6 HOMOPOLYMER AND COPOLYMERS
Abstract: Composition radiation dose temperature dependency on free radicals generated in PA6, PA6/ PA12 copolymer, has been investigated by electron spin resonance (ESR) and FTIR techniques. ESR spectra of -irradiated PA6 has shown complex shaped and number of hyperfine lines is observed to be in between 6-10. This complex spectrum is assigned to macro-radicals of the type ~CH2CHCH2~, which in principle has to give a ten line ESR spectrum. However, due …
Published in Journal of Catalyst & Catalysis · Vol. 5, Issue 1, 2018 · pp. 25–37 Read article
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MEMS Sensors in IoT Applications
Abstract: IoT is a system which connects objects and users via internet. Things can be much more simplifiedusing MEMS technology where they can operate with Ultra low power and can provide accurateresults in a convenient method. MEMS can improve traditional technologies involved in IoT. Thispaper focuses on energy harvesting, performance of MEMS sensors, fault identification, smartcommunication and MEMS switching technology. As we know that IoT devices are well equipped incertain areas …
Published in Journal of Control & Instrumentation · Vol. 12, Issue 1, 2021 · pp. 18–22 Read article
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Design of Multifunction Stethoscope with Auto Gastrointestinal Wriggle Detector
Abstract: As the acoustic stethoscopes can't compete with the magnified sound quality so the digital stethoscopes provides even better identification of conditions. The objective of this work is to design a digital stethoscope with multifunction modes, which provides sound analysis for different body signals acquired from heart, lungs and abdomen. Using this system a doctor can not only analyze the sounds but also identify the gastrointestinal wriggling occurrence in the human …
Published in Journal of Electronic Design Technology · Vol. 4, Issue 2, 2013 · pp. 7–12 Read article
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Ergonomics Issues in Oil and Gas Sector
Abstract: AbstractNumerous industries have effectively actualized ergonomic arrangements in their facilities as an approach to address their workers injury risks. These interventions have included adjusting existing hardware, rolling out improvements in work practices and acquiring new tools or different gadgets to aid the creation procedure. Rolling out these improvements have reduced physical requests, eliminated superfluous developments, brought down damage rates and their related laborers' remuneration costs, and reduced employee turnover. In …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 1, 2018 · pp. 1–5 Read article
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Border Security Robot Vehicle with YOLO V4
Abstract: The objective of this project is to design and manufacture a prototype of Bordersecurity surveillance UGV with YOLO V4 algorithm. This versatile robot vehicle use a remote camera method to track active persons, burning, hazardous chemicals, metals, and obstructions in remote regions and transmit data to a central location. To offer instant reaction from sensors, the suggested system employs YOLOV4 and machine intelligence. While the robot is functioning, thevehicle is …
Published in Journal of Mechatronics and Automation · Vol. 9, Issue 3, 2022 · pp. 27–36 Read article
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Design of a Real-Time Temperature Monitoring System using PIC to PIC SPI Communication with Multiple Displays and Wireless GUI Control
Abstract: AbstractThis paper proposes a real-time temperature monitoring system using PIC to PIC communication with SPI protocol that can read, process and display the sensed data. The system has three modules, a Sensor (Slave) module, a Master module and a computer-based GUI module. The GUI provides control operations and communicates with the Master module over Bluetooth to send control commands and receive data. The Master module takes control commands from the …
Published in Journal of Microcontroller Engineering and Applications · Vol. 7, Issue 2, 2020 · pp. 6–24 Read article
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Multi Objective Optimization in Turning Parameters of Al 6463 using Principal Component Analysis
Abstract: AbstractIn multi objective optimization, weight criterion of each objective is important for producing better and accurate solutions. Now a day, due to the growing requirement of the higher precision apparatus for its useful aspect, machining time (MT) and material removal rate (MRR) of a machined part plays a significant role in the modern manufacturing process. This study focuses on optimizing CNC turning parameters on Al 6463 based on principal component …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 2, 2017 · pp. 6–15 Read article
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A Review on an Investigation on the Effect of Immersed Medium in Friction Stir Welding of Aluminium Alloys (AA 6061-T6)
Abstract: Friction stir welding is solid state welding technology used for welding of low melting point metals such as Al, Mg and its alloys. FSW process can be controlled by different parameters like rotational speed, feed rate and welding medium. In this process, a cylindrical non-consumable tool, with a profiled probe (pin) rotating about its own axis is slowly plunged into the abutting edges of work pieces rigidly clamped to a …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 1, 2017 · pp. 9–16 Read article
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Optimization of Machining Parameters in Electric Discharge Machining of Al 65032
Abstract: Electric discharge machining has the potential to maintain surface topography and produce less stresses and destruction to the components. In this machining there is no contact between the tool and the work piece. The spark generated due to the electrostatic field generation between tool and the work piece. The objective of this experimentation was to create guidelines for electric discharge machining of Al 65032. Aluminum alloy 65032 is one of …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 3, 2015 · pp. 15–22 Read article
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Establishing Empirical Relationships to Predict Grain Size and Hardness of Pulsed Current Microplasma Arc Welded Inconel 625 Sheets
Abstract: Nickel alloys have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metallic bellows used in expansion joints in aircraft, aerospace and petroleum industry. In case of single pass welding of thinner sections of this alloy, pulsed current microplasma arc welding was found beneficial due to its advantages over the conventional continuous current process. The paper focuses on developing mathematical models …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 37–47 Read article
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Influence of Metal Contacts on Graphene Based Chemical Sensor Devices
Abstract: Graphene is a versatile material suitable for the device applications, both under normal and harsh environmental conditions. The graphene based devices require stable metallic contacts, both ohmic and rectifying, for reproducible operations. This is especially applicable to the few layer and multilayer graphene. This article deals with different ohmic and Schottky contacts on graphene. The methods of developing contacts by pre deposition and post deposition processing are highlighted. Furthermore, the …
Published in Journal of Microelectronics and Solid State Devices · Vol. 3, Issue 3, 2016 · pp. 1–9 Read article
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Exploring the Dual Functionality of Polypyrrole/Cobalt Sulphide Nanocomposite in Photocatalysis and Gas Sensing
Abstract: Cobalt sulphide nanomaterial was synthesized using the co-precipitation method, and chemical polymerization of polypyrrole (ppy) was performed in the presence of the synthesized cobalt sulphide nanomaterial for the preparation of nanocomposite. The synthesized ppy/cobalt sulphide nanocomposite was characterized by transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray powder diffraction (XRD), Fourier transformation infrared spectroscopy, and UV-visible spectroscopy. The TEM micrograph revealed that the generated cobalt sulphide nanoparticles were …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 72–85 Read article
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PFC-BL-CSC Converter Fed Sensorless BLDC Motor Drive
Abstract: BLDC motors drives have gained importance due to power quality improvements and high efficiency. In low and medium power applications, it is mostly preferred. The speed control and power factor correction of the BLDC motor drive is achieved using a PFC converter. Here a bridgeless CSC converter is used. This configuration has numbers of advantages over other configurations of the converter. In this paper, position sensing is done based on …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 1, 2019 · pp. 27–33 Read article
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Harmonic Analysis of 6-Pulse Diode Bridge Rectifier Circuits
Abstract: This paper analyzes the steady-state harmonic performance of the six-diode, 3-phase rectifier bridge circuits. A procedure for determining the frequency spectra of the different voltages and currents within the bridge circuit, resulting from a 60-Hz 3-phase supply, is presented. The effect of the smoothing shunt-capacitor is also demonstrated. Based on a Mathematica code, the paper presents the results of a comprehensive list of case studies. The procedure can handle unsymmetrical …
Published in Journal of Power Electronics and Power Systems · Vol. 10, Issue 2, 2020 · pp. 1–10 Read article
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Review of application of CFD methodologies used for methane enrichment of natural gas
Abstract: Methane is a major constituent of biogas which contains about 60 – 70% of total volume. For utilization of biogas as fuel, its calorific value is a limitation which can be improved by removing impurities such as CO2, H2S, and moisture. Various techniques are available for the removal of impurities. This paper aims to explore various methodologies in CFD which are used to simulate and find out the factors that …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 44–47 Read article
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The Reserves and Production Trends of Ghana’s Petroleum Resources
Abstract: Fossil fuels consumption has been a major source of energy in the past three decades. Globally, this accounts for over 80% of the primary energy mix. Ghana has huge hydrocarbon reserves. These reserves include fields such as the Saltpond field currently planned for decommissioning, Jubilee, Tweneboa-Enyenra-Ntomme (TEN), and the Sankofa-Gye Nyame (SGN) fields. The dwindling rate of these fields over the years has become a great concern. This work has …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 28–37 Read article
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An Efficient Method of Estimating and Analysing Soil Moisture Using IOT
Abstract: The current state of water content on the earth is decreasing at a rapid rate. Due to this reason, the lands which used to be fertile, moist, and healthy for agriculture purposes and various other forest regions are drying out due to lack of moisture content. Excess water in various regions can be diverted to the lands with low moisture levels and converting them into fertile plain lands. The recent …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 3, 2022 · pp. 1–8 Read article
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Experimental Investigation of Dilution Control Using Advanced Gas Metal Arc Welding Process
Abstract: This work investigates the amount of reduction in dilution by using Advanced Gas Metal Arc Welding (AGMAW) process. Dilution is the ratio of area of the base metal melted to the total area of weld bead measured across a given weld bead cross section. Dilution is one of the most important factors governing the success of any surfacing operation and is expressed in percentage. The AGMAW is a self-coined word …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 1, Issue 3, 2014 · pp. 1–7 Read article
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Cluster Based Sleep Transistor Approach for Low Power 6T SRAM Cell
Abstract: The demand of high density VLSI circuits has been increasing as the size of ICs is becoming small day by day. It has been seen that, to reduce active power dissipation in memory, the supply voltage reduction is necessary. Lowering the supply voltage is one of the most straightforward and effective ways to suppress the energy consumption because reducing the supply voltage could reduce the dynamic power and leakage power …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 41–48 Read article
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A Reliable Low Standby Power 6T SRAM Cell
Abstract: The project introduces a low standby power 10T (LP10T) SRAM cell that focuses on achieving high read stability and write-ability while minimizing power consumption. The LP10T SRAM cell uses a robust cross-coupled design that combines a Schmitt-trigger inverter with a double-length pull-up transistor and a regular inverter with a stacking transistor. One of the key advantages of the LP10T SRAM cell is that it separates the read path from the …
Published in Journal of VLSI Design Tools and Technology · Vol. 13, Issue 1, 2023 · pp. 33–59 Read article