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600 articles for “CERT-In”
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The Emergence of REM Detection Algorithm
Abstract: The objective is to use these EEG features for developing a simple algorithm capable ofdetecting REM stage epochs. Both these objectives ultimately aid the development of a sleepstaging algorithm that could be used as part of a truly wearable sleep system. Spectral edgefrequency (SEF) is the frequency below which a certain fraction of the signal powerKeywords: EEG, EEG channel, REM, Spectral edge frequency, SEFd, signal
Published in Trends in Electrical Engineering · Vol. 10, Issue 1, 2020 · pp. 43–49 Read article
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Review and Design of Voltage Sag Compensation Using Improved DVR System with Proportional Integral Controller
Abstract: The aim of this investigation is to remunerate voltage inthree-stage power systems during voltage sag conditions induced bybalanced and unsymmetrical deficiencies in power distributionsystems or offices in plants. Voltage plunges (also known as "voltagesags") are abrupt drops in voltage size. Their definition is usuallyanywhere between a couple of power-system recurrence trends and acouple of moments. The popularity of voltage plunges stemsprimarily from their effect on end-client hardware. Mechanicalprocesses can fail …
Published in Trends in Electrical Engineering · Vol. 11, Issue 1, 2021 · pp. 36–43 Read article
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Optimization of Helical Spring Weight using Meta-heuristic Algorithms
Abstract: Optimization is the act of obtaining the best results under given circumstances. A mathematical theory of optimization is highly in use and is being applied to design where design function can be expressed mathematically. Many techniques like Linear Programming, Branch & Bound technique, Dynamic Programming methods are available to solve optimization problems. But these conventional Methods suffer from certain drawbacks like sticking at suboptimal solution, inefficiency in handling problems having …
Published in Trends in Machine design · Vol. 5, Issue 2, 2018 · pp. 21–28 Read article
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Digital Signature Verification Based on Biogamal, SHA and Elgamal Algorithms
Abstract: Nowadays, in our day-to-day life online services are playing a very crucial role. Online services also have some certain security challenges in communication network. Security aspects consists of confidentiality of data/information, authentication of users and integrity of data. To achieve all these parameters, the information must be digitally signed by the original sender and verified by the intended recipient. Thus, research digital signatures should be further developed to improve the …
Published in Trends in Machine design · Vol. 7, Issue 3, 2020 · pp. 17 21 Read article
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Design and Development of Electromagnetic Braking System Based on Electromagnetic Induction and Eddy Current
Abstract: In this paper, electromagnetic braking system has been developed that ensures passenger’s, driver’s and other road user’s safety and comfort. Most of the conventional braking system like mechanical, hydraulic, pneumatic have certain limitations. In mechanical brake, erosion of the mechanical pads is carried out by frictional force and requires periodic replacement of the bearing. Fluid leakage in hydraulic and pneumatic could lead to brake failure and reduces the effectiveness of …
Published in Trends in Machine design · Vol. 9, Issue 3, 2022 · pp. 9–23 Read article
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EffiFeed: Revolutionizing Cow Feeding with Automated Design and Fabrication
Abstract: Conventionally the feeding of the cattle is manual which is time consuming. In this project, automatic cattle feeding system is introduced where food feeder follows the path through a pre- determined distance and places the feed to the cattle by the side of the feed fence. The prototype is developed using Arduino circuit for the operation of feed mechanism with certain time space. The motors are interfaced to operate in …
Published in Trends in Machine design · Vol. 10, Issue 1, 2023 · pp. 32–39 Read article
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Review on Improving the Fuel Efficiency of a Hydraulic Excavator using various Optimization methods
Abstract: Due to global warming & rising energy cost, it has become the need of society to develop new techniques for pollutant emission & reduction of fuel consumption. This paper provides a comprehensive review of recent research on the energy-saving technology for minimizing the specific fuel consumption up to a certain level. The development, application and performance of hybrid hydraulic excavation system were analysed. These developed model system can be optimized …
Published in Trends in Mechanical Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 7–12 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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Stair Climbing Wheelchair
Abstract: The wheelchair is an invention that has revolutionized the lives of people with disabilities, enabling them to move around independently and with greater ease. However, certain activities such as climbing stairs and working at heights have remained a challenge for people with disabilities, forcing them to rely on others for assistance. The solution to this problem has been the development of wheelchairs with elaborate sensors and gyroscopes that can perform …
Published in Trends in Mechanical Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–19 Read article
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Production Methods, Mechanical Characteristics, and Industrial Uses for Metal Matrix Composites
Abstract: Advanced light-weight components known as composites from metal matrix are made of an element the alloy matrix with a second phase incorporated and dispersed throughout to improve certain properties. The composite's property varies according to the remaining phase's size, shape, and quantity. Because of its unique combination of ceramic and metallic features, it has better mechanical and physical qualities. These materials belong to a new breed of engineered materials that …
Published in Trends in Mechanical Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 1–5 Read article
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Design and Analysis of Dispersion Flattened Low Loss Photonic Crystal Fiber
Abstract: AbstractThis paper demonstrates the study of triangular lattice hexagonal photonic crystal fiber with GeO2 doped core. The photonic crystal fiber (PCF) studied in this research work has a core doped with 97% molar concentrated GeO2 with seven layers of air-capillaries around the core. The design and analysis of optical characteristics, i.e., dispersion, confinement loss, and effective area have been studied extensively for optimizing the structure for a certain range of …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 41–50 Read article
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Experimental Investigations on the Effects of Channel Aspect Ratio and Surface Wettability to Control the Surface-Driven Capillary Flow of Water in Straight PMMA Microchannels
Abstract: AbstractTotal 214 individual straight polymethylmethacrylate (PMMA) microchannels have been fabricated by the maskless lithography, hot embossing lithography, direct bonding technique, and atmospheric pressure air dielectric barrier discharge (DBD) plasma processing. The experimental investigations on the effects of structural properties (channel aspect ratios) and physical properties (surface wettability, capillary pressure and kinetic energy) on the surface-driven capillary flow of dyed water in straight PMMA microchannels is a novel approach in this …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 3, 2016 · pp. 1–12 Read article
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Feasibility Analysis of Advanced Modulation Techniques for FSO in Different Weather Conditions
Abstract: AbstractIn recent times, the ever increasing demand of higher bandwidth and more data rate had led researchers to explore new dimensions in wireless technology. One of the most promising fields is that of free-space optics (FSO). Light is used to carry information through space with the physical medium being the air. This paper investigates the effect on Q-factor and power loss for various advanced modulation schemes under different weather conditions. …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 2, 2016 · pp. 1–7 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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Text based Graphical Password System to Enhance Security
Abstract: A graphical password is a type of authentication that requires the user to choose from a set of images in a certain order. For most people, remembering a graphical password is easier than remembering a text-based password. Passwords with graphics may be more difficult to remember. offer better security than text-based passwords. Humans can remember pictures much better than the text. To create passwords more memorable and less vulnerable to …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 3, 2021 · pp. 8–14 Read article
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A Review of Research on Email Security Protocols
Abstract: Email is the most widely recognized approach to impart today. Email is utilized for sending instant messages and to send connection, sounds, and recordings. For business information, exchange email is the main means. It is the most common way to communicate over internet with different people all over the world. In addition, it has had disadvantages like cybercrime, people can use this means of communication for sending false mails spam, …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 3, 2021 · pp. 15–22 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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Using AHP in Belt Conveyor Selection Problem
Abstract: Belt conveyor plays a dominating role in screening creaser. The performance of belt conveyor is primary issue for screening creaser. There are various criteria which affect the performance of belt conveyor. Selection of belt conveyor is a Multi-criteria Decision Making (MCDM) problem. In that respect there are many methods available for selection of belt conveyor; however this paper targets to explore the applicability of AHP to solve belt conveyor selection …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 39–46 Read article
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Investment Analysis and communication Issues for Road Assets
Abstract: The main purpose of this work is to develop good practices for management of infrastructures. The scope of this practice is mainly focused on pavement network, but it also includes other road assets like bridges, culverts and signs. A preventive maintenance, rehabilitation and reconstruction investment analysis is performed for these assets. The analysis and budgeting is performed for 20 years period to maintain and preserve the existing service level for …
Published in Trends in Transport Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 1–16 Read article
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Enhanced Railway Operations Using Automated Locomotive Simulator
Abstract: : Recent statistics indicates about 85 per cent of overall fatalities is caused by humans due to insufficient resources resulting in overworked and inexperienced workers. The deaths of civilians and machinery due to a lack of automation could have severe consequences for the economy of the country. Certain considerations were intercommunication between trains and introduction of passenger safety reporting in emergencies at grass roots level. We suggest eliminating such challenges …
Published in Trends in Transport Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 17–23 Read article