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456 articles for “O2/N2 separation”
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Single Phase Transformerless Grid Tied PV Application Along with Battery Energy Management System
Abstract: A spectacular increment of interest in photovoltaic (PV) energy systems.There has been significant drop in the cost of PV modules somewhat recently, thus the lessening of assembling expenses of PV inverters turns into a commitment. PV inverters that utilize a detachment transformer, are cumbersome and difficult to introduce. While by connecting with a high recurrence transformer almost a DC-DC converter can contract the size of the inverter, it diminishes the …
Published in Recent Trends in Electronics Communication Systems · Vol. 8, Issue 1, 2021 · pp. 30–24 Read article
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Wastewater management in developed and developing countries
Abstract: Water is essential for humans and every other living being on earth. Everyone needs to use water efficiently by reducing and reusing methods. Managing wastewater in developed and developing countries is one of the methods. Wastewater management had importance in history as ancient Rome had a drainage system in which surface conduits were to the Tiber River. In the 19th-century, wastewater threw out of the cities with the help of …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 2, 2021 · pp. 13–24 Read article
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Calibration And Comparison Of An Improved Rotatable Single Hole Probe In 4, 6 And 8 Positions
Abstract: An improved single hole probe with a measurement volume of 0.3 mm dia. is developed in the present investigation. The probe is calibrated in a low turbulence open jet tunnel at a velocity of 50 m/s in yaw and pitch angle range of + 40 deg. at an interval of 5 deg. A special probe holder is developed so that the probe can be positioned at intervals of 15 deg. …
Published in Recent Trends in Fluid Mechanics · Vol. 8, Issue 2, 2021 · pp. 25–36 Read article
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Novel MOSFET Based Pressure Sensor That Uses Combined Channel Piezoresistance and Gate Capacitance Effects
Abstract: The paper considers modeling and analysis of a square and circular diaphragm Suspended Gate MOSFET based pressure sensor using COMSOL Multiphysics. Two structures, one a square with an n-channel MOSFET at the center and the second a circle with a p-channel MOSFET at the edge of the diaphragm were simulated. The piezoresistance effect of the channel and capacitance variation due to the suspended gate have been exploited in designing the …
Published in Recent Trends in Sensor Research & Technology · Vol. 2, Issue 2, 2015 · pp. 30–39 Read article
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Fuzzy Control for Speed Control of DC Motor with Two-inductor Boost Converter
Abstract: This study presents a closed loop control of two-inductor boost converter fed DC motor with the design of fuzzy controller to control the speed of separately excited DC motor. The speed of motor can be changed by controlling the armature and field voltages. The fuzzy controller is designed to control the armature voltage while the field voltage is fixed as a constant. The fuzzy controller system tunes to error and …
Published in Trends in Electrical Engineering · Vol. 8, Issue 2, 2018 · pp. 1–9 Read article
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Design and Simulation of Speed Control of DC Motor and DC Voltage Control of Two Quadrant Chopper
Abstract: The DC motors are most suitable for wide range speed control and hence it is used in many adjustable speed drives. The DC motors are generally fed by chopper circuit for improved performance. In order to get smooth and precise control over the speed of DC motor, many different types of controllers have already been introduced. In this paper, two discrete-time multi-input and multi-output optimal controllers, one for control of …
Published in Trends in Electrical Engineering · Vol. 4, Issue 3, 2014 · pp. 26–34 Read article
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Health Assessment of Oil Immersed Transformer Using Fuzzy Logic
Abstract: A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications. Mineral oil treats heart of the transformer, its functions are to insulate, suppress corona and arcing, and to serve as a coolant. The oil helps cool the transformer. Because it also provides part of the electrical …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 6–16 Read article
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Study of Load Frequency Control
Abstract: This paper is an attempt to study the control of active and reactive power in order to keep the system in the steady state. In addition, simple models of the essential components used in control system are analyzed. The objective of the control strategy is to generate and deliver power in an interconnected system as economically and reliably as possible while marinating the voltage and frequency within permissible limits. These …
Published in Trends in Electrical Engineering · Vol. 6, Issue 2, 2016 · pp. 73–79 Read article
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A Brief Study on REM (Rapid Eye Movement)
Abstract: Human sleep is broadly classified into two groups: rapid eye movement (REM) and non-rapideye movement (NREM). According to the American Academy of Sleep Medicine (AASM) sleepscoring manual, NREM stage is further divided into N1, N2 and N3 stages with theprogression of sleep. The standard method of sleep analysis is known as polysomnography(PSG), where several physiological signals are acquired, visually analyzed by sleeptechnicians and scored into various stages. Manual analysis and …
Published in Trends in Electrical Engineering · Vol. 10, Issue 1, 2020 · pp. 1–6 Read article
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Evaluation of Tensile Properties of Waste Cornhusk Fibre Reinforced Epoxy Composite
Abstract: Composite materials are generally used in various manufacturing and construction applications around the globe. Properties like lightweight, fatigue resistant, effortlessly moldable makes composites a favorable material for various applications. Composites meet various design requirements with important factor of weight reduction of the part or the product to be manufactured. This lighter materials are nowadays preferred over the conventional materials as they are helpful in absorbing the impact load and vibrations. …
Published in Trends in Machine design · Vol. 7, Issue 2, 2020 · pp. 22–24 Read article
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FAILURE ANALYSES OF 16MM THICK SA 516 GR 70 AUTO CLAVE
Abstract: With the acceleration of global industrialization, there is a demand for high- or low-pressure storage of liquids or gases. Because of the complicated operating conditions that will inevitably encounter a possible hazard, pressure vessel design is a critical responsibility. Previous failure studies have revealed that the presence of local loads and discontinuities increases pressure vessel fracture. As a result, a detailed examination of pressure vessel steel from the standpoint of …
Published in Trends in Mechanical Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 21–30 Read article
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DESIGN AND FABRICATION OF AUTOMATIC TRANSMISSION FOR PHYSICALLY CHALLENGED PEOPLE
Abstract: In our today’s busy world transportation plays a major role for everyone to travel from one placeto another. Mostly 90% of people will use either a car or bike for the mode of transportation. Soto make the driving very much easier for them and to reduce the work effort we have concluded aproject. So our project is mainly focused on eliminating the work action like accelerating,braking and also applying the …
Published in Trends in Mechanical Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 10–16 Read article
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Passive Capillary Flow of Aqueous Microparticle Suspensions in the Sudden Expansion PMMA Microchannels
Abstract: AbstractAuthor has fabricated a set of sudden expansions micro channels in the polymethylmethacrylate (PMMA) microfluidic devices by the maskless lithography, hot embossing lithography, drilling, air dielectric barrier discharge (DBD) plasma processing, direct bonding technique and chip separation technique. The surface-driven capillary flow of dyed water and three individual aqueous microparticle suspensions are studied with respect to the effects of channel aspect ratio, effective viscosity and surface wettability. The number densities …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 1, 2017 · pp. 13–17 Read article
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Performance Study of Parabolically versus Exponentially Tapered Multimode Interference Coupler
Abstract: ABSTRACT This paper shows mainly the performance study on tapered section of Multimode Interference (MMI) coupler having either parabolic or exponential taper section. The comparative study of the 1 × 2 MMI coupler with proposed structure, such as the normalized width variation, and variation of MMI length are investigated by the 2D finite difference beam propagation method (BPM). We have found that exponential tapered MMI coupler has advantageous compared to …
Published in Trends in Opto-electro & Optical Communication · Vol. 2, Issue 2, 2012 · pp. 8–17 Read article
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Electroluminescence
Abstract: Electroluminescence (EL) is a kind of luminescence which is an optical and electrical phenomenon in which light is emitted by certain materials due to the passage of an electric current or a strong electric field. The mechanism behind electroluminescence is the radiative recombination, or spontaneous emission. The electrons get excited and release their energy as photons. The holes and electrons before recombining are separated either by doping the given material …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 1, 2021 · pp. 13–18 Read article
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Understanding of optical power in semiconductor based SOI Structure at the signal 1550 nm
Abstract: A silicon-on-insulator (SOI) structure consists of a single crystalline silicon layer separated from the bulk substrate by a thin insulator layer. The insulator in SOI wafers is usually always a thermal silicon oxide (SiO2) layer, with a silicon wafer as the substrate. The silicon sheet can be very thin (50 nm for fully depleted transistors) or tens of micrometres thick, depending on the application. Similarly, the thickness of buried oxide …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 1, 2022 · pp. 19–23 Read article
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Recognition of Thyroid Nodules Using Hierarchical Temporal Awareness Networking Scanning
Abstract: Contrast-enhanced ultrasonography (CEUS), a preferred imaging technique for thyroid nodule diagnosis, is able to reveal the vascular distribution within a thyroid nodule right away. With the aim of mining pathologically-related enhancing dynamics and creating predictions in one step without taking into account a native diagnostic dependency, a number of learning-based algorithms have recently been created. In clinics, separating benign from malignant nodules is always done before identifying pathological types. In …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 2, 2022 · pp. 31–35 Read article
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Performance Improvement of RoF & FSO based Hybrid Network using Multi Beam Transmission
Abstract: Radio over Fiber and Free Space Optics has become a popular technology to provide wireless data services to mobile users. But both have their own limitations when implemented separately. In this manuscript, we have proposed a multi beam transmission assisted hybrid network based on Radio over Fiber and Free Space Optics. It is revealed that by deploying multiple beams in the free space transmission, the data rate is enhanced by …
Published in Trends in Opto-electro & Optical Communication · Vol. 13, Issue 2, 2023 · pp. 1–6 Read article
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Design and Implementation of Smart House using LabVIEW
Abstract: AbstractEveryone wants to enjoy comfort and ensure security at his or her homes. Most of the security and automation systems in the market are not flexible and full-fledged. There are two important issues addressed by the automation system. The first issue that is to be overcome is the compatibility with various devices and forthcoming technologies. This issue is overcome by auto updating of the central controlling tool. The second issue …
Published in Current Trends in Information Technology · Vol. 6, Issue 2, 2016 · pp. 5–13 Read article
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A Suite of Security Mechanisms for Security and Privacy in MANET
Abstract: AbstractReputation of mobile strategies and wireless networks has significantly increased; wireless mobile networks have become popular and vigorous fields of message and link ages from many the years. MANET is the novel advance invention which allows clients to connect without any bodily infrastructure, irrespective of their location, that is why it is quantified as an “infrastructure-less” network. In the past few years, we have seen huge amount of wireless infrastructures …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 1, 2019 · pp. 1–6 Read article