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41 articles for “Numerical scheme”
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Designing Reliability Single Sampling Plans based on Exponentiated Rayleigh Distribution
Abstract: Reliability sampling plans are used in manufacturing industries to take decision on the disposition of lots of finished products based on the information obtained from concerned life test. Among various schemes, hybrid censoring scheme is applied with an objective of saving both time and cost of inspecting the products simultaneously. Parameters of the reliability sampling plans under hybrid censoring scheme are determined corresponding to the lifetime distribution. Exponential, Weibull, Rayleigh …
Published in Research & Reviews : Journal of Statistics · Vol. 7, Issue 1, 2018 · pp. 36s–40s Read article
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PAPR Reduction for Single Carrier-FDMA using Pilot Sequence Techniques
Abstract: SC-FDMA (Single carrier-Frequency Division Multiple Access) with lower PAPR (Peak-to-Average Power Ratio) than OFDMA (Orthogonal Frequency Division Multiple Access) is an attractive alternative to OFDMA. SC-FDMA also possesses basic advantages of OFDM. The 3rd generation partnership project (3GPP) long term evolution (LTE) standard has adopted orthogonal frequency division multiplexing access (OFDMA) in downlink and single carrier frequency division multiple access (SCFDMA) scheme for the uplink transmissions. In this paper, we …
Published in Recent Trends in Electronics Communication Systems · Vol. 2, Issue 3, 2015 · pp. 8–17 Read article
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Evolution of Protection Coordination Methods in Power Distribution Systems: A review
Abstract: This comprehensive paper presents a broad-ranging exploration of the multifaceted challenges inherent in coordinating over-current relays within distributed generation (DG) systems in the context of power grids. Within these systems, the pivotal roles of both protective devices and the overarching protection system are highlighted, emphasizing their joint responsibility in detecting short-circuit currents and swiftly isolating faulty components. The primary objective of this protection coordination is to ensure the meticulous selection …
Published in Journal of Power Electronics and Power Systems · Vol. 13, Issue 3, 2023 · pp. 9–16 Read article
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An Overview to Enhance Visual Cryptography Techniques
Abstract: A unique type of cryptographic method called "visual cryptography" allows for decryption to be carried out using only the human eye. Generally speaking, for some crucial security, in modern society, processing and protecting information from attacks is becoming a very important aspect for people. Researchers are developing new ways to protect information from unwanted intrusion. Numerous encryption methods have been discovered, with many more yet to be discovered. Visual ciphers …
Published in Journal of Computer Technology & Applications · Vol. 14, Issue 1, 2023 · pp. 17–23 Read article
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Efficient Cell Balancing and Protection Schemes for Electric Vehicles
Abstract: Efficient cell balancing and protection are critical aspects of electric vehicle (EV) battery management systems, ensuring optimal performance, longevity, and safety. Cell balancing refers to the process of equalizing the charge levels of individual cells within a battery pack to maximize energy utilization and prevent overcharging or undercharging of any cell. This promotes uniform wear and extends the overall lifespan of the battery pack. In the context of EVs, where …
Published in Journal of Power Electronics and Power Systems · Vol. 14, Issue 3, 2024 · pp. 9–21 Read article
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Channel Estimated Modulation Techniques for Wireless Communication Systems: Review
Abstract: The high spectrum and energy capabilities of Multiple Input Multiple Output systems make them a propitious technology for 5th-generation wireless communication systems. The acquisition of channel information is crucial for utilizing the potential gains of the multi-modal systems. Numerous studies have established channel estimation techniques and are still in research which faced several challenges with downlink-uplink overheads, complexities, and pilot contamination. This work discusses the insights obtained from the reviewed …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 2, 2025 · pp. 1–10 Read article
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A Review on Comparison of Vedic Multipliers Using Various Types of Adder Topologies
Abstract: Abstract: This paper examines the displays of comparison of Vedic multipliers using various adders. In the design of most high-performance systems such as FIR filters, image processing, microprocessors multipliers are the integral components and multiplication is the important fundamental function in arithmetic operations. Multiplication is the most important job in signal processing apps for numerical operations. Since speed in the multiplication procedure is dependably a must, velocity increases can be …
Published in Journal of Operating Systems Development & Trends · Vol. 6, Issue 3, 2019 · pp. 1–8 Read article
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BER Performance Analysis for Digital Modulation Techniques in AWGN Channel of FSO Communication System with Low Attenuation Coefficient
Abstract: BER is a potential methodology for examining digital transmission systems by providing a measurable and useful indication of system performance. If the BER rises within limit then the system performance will be obviously satisfactory. The paper represents BER performance of FSO communication system for a few number of digital modulation techniques: BPSK, QPSK, 4-QAM and 16-QAM in AWGN channel by exploiting the Matlab simulated BER versus SNR graphs. The numerical …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 1, Issue 3, 2014 · pp. 12–19 Read article
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Analytical Performance Evaluation of Coherent Detection Optical Receiver over Direct Detection in OFDM Wireless Optical Communication System under Turbulent Condition
Abstract: AbstractWireless Optical (WO) communication networks have the ability to have high-speed and robust access. WO communication network output can be greatly affected by ambient conditions. Atmospheric turbulence is among the facts about the atmosphere which can reduce the reliability underneath clear sky. Earlier, orthogonal frequency division multiplexing (OFDM) in WO is reported for the design of a high-performance communication channel for the atmospheric network. Selecting a proper detection scheme in …
Published in Trends in Opto-electro & Optical Communication · Vol. 10, Issue 1, 2020 · pp. 14–23 Read article
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A comparative study of the Therapeutic Stratergies used in the treatment of Covid-19
Abstract: In late December 2019, an outbreak of an emerging disease (COVID-19) due to a novel coronavirus (later named SARS-CoV-2) started in Wuhan, China and rapidly spread in China and outside The WHO declared the epidemic of COVID-19 as a pandemic on March 12th 2020 . According to a recent Chinese study, about 80% of patients present with mild disease and the overall case-fatality rate is about 2.3% but reaches 8.0% …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 11, Issue 1, 2023 · pp. 29–35 Read article
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Sensitivity of Shape Factor Impacts in Water Works Infrastructure Failure
Abstract: Simple geometry used in water software and hydride sign works was failed here. Comprehensive real data with complex irregular geometries were incorporated provided for wider application and feasible solutions. A realistic and more practical approach was tested, found reliable and compatible with water engineering principles considered for calculation of volumetric water rates by three types of Ogee shapes. Results indicated proximity between numerical and experimental data accurately predicted based on …
Published in Journal of Water Resource Engineering and Management · Vol. 4, Issue 1, 2017 · pp. 25–34 Read article
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LTE & 5G NR Carrier Aggregation Network Optimization through Advanced Measurement Configuration
Abstract: The ability to merge numerous frequency carriers—component carriers—to increase transmission bandwidth and throughput speeds over what can be achieved with a single carrier is known as carrier aggregation, and it is a crucial technology in 4G LTE and 5G networks. Cellular devices may attain gigabit data speeds by combining carriers from several frequency bands, such as 600 MHz to mm Wave frequencies, to increase downlink and uplink capacity. This study …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 10, Issue 2, 2023 · pp. 35–45 Read article
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Camera-based Anti-theft Surveillance and Monitoring System
Abstract: Abstract: This paper presents a real-time smart door gadget for domestic safety. Most of the proposed clever home structures try to convey answers for this safety hassle, but lots of those structures use several sensor devices. With the increasing safety issues, it is important to apply new technology. The Internet of Things is one of the new technologies nowadays used in home automation system. Raspberry Pi is a strong and …
Published in Journal of Mobile Computing, Communications & Mobile Networks · Vol. 6, Issue 3, 2019 · pp. 1–4 Read article
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Enhancing security and Efficiency in cloud Data De-duplication through re encryption
Abstract: Data de-duplication technologies have been widely used by commercial cloud storage providers since they are helpful and essential in addressing the growing data expansion. To enhance and guarantee the security of sensitive information provided by users in the outsourced storage mode, numerous secure data de-duplication techniques have been developed and employed in diverse settings. Several scholars have been drawn to secure and efficient re-encryption for encrypted data de-duplication systems, and …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 10, Issue 1, 2023 · pp. 1–8 Read article
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The Electromagnetic Transients in Mixed Power Networks with Partial Undergrounding
Abstract: This paper deals with the electromagnetic transients in partially undergrounded mixed high voltage power networks. These networks can include several cable sections replacing parts of the overhead transmission lines. The analysis yields the transient voltage and current distributions along the normal and the partially undergrounded lines. Moreover, the results can indicate eventually existing localized voltage and current concentrations within the network. The study suggests an exact direct analytical distributed parameter …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 1–13 Read article
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Security Challenges and Solutions in Wireless Sensor Networks: a Case study of Afghanistan
Abstract: Due to their capability to collect and relay data from locations without supervision, Wireless Sensor Networks (WSNs) have become essential for numerous contemporary applications (such as environmental monitoring, smart cities, and healthcare). However, the open and resource-constrained nature of WSNs makes them particularly vulnerable to security threats. This paper reviews the key security Issue faced by WSNs and the solutions proposed in recent literature. We examine the unique constraints of …
Published in Recent Trends in Sensor Research & Technology · Vol. 13, Issue 1, 2026 · pp. 27–35 Read article
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Inter-patient Heartbeat Classification Using Higher Order Statistics and Symbolic Dynamics of ECG Signal
Abstract: Computer assisted heartbeat classification techniques have gained significant importance in the recent years as they aid the cardiologists in identifying abnormal heartbeats in ECG recordings. These techniques are of vital importance especially for the long term ECG recordings where it is not feasible to manually analyze the numerous heartbeats. Electrocardiogram (ECG) is an electrical representation of human heart activities and change of these activities is reflected in the morphology of …
Published in Current Trends in Signal Processing · Vol. 7, Issue 2, 2017 · pp. 37–45 Read article
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CFD Analysis of Effect of Forced Vibration on Heat Transfer in Laminar Flow
Abstract: Vibration of pipes conveying fluid is an important problem present in installations which are normally used in petroleum industries, hydropower systems, food processing industries, chemical plants and hydraulic power systems. Research is needed to further understand and be able to predict the flow behavior and investigate ways of improving their processing. The current work involves the numerical simulation of flow and heat transfer under an externally imposed mechanical vibration. CFD …
Published in Journal of Thermal Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 1–9 Read article
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Experimental Study on the Impact of Polymer (PAM) in Enhancing Oil Recovery in Upper Assam Basin Oil fields
Abstract: The Upper Assam Basin, one of India’s most mature and extensively exploited hydrocarbon provinces, is experiencing declining oil production due to reservoir depletion and unfavorable crude oil–brine–rock (COBR) interactions. In this context, alkali–polymer (AP) flooding has emerged as a promising chemical enhanced oil recovery (EOR) strategy. AP flooding reduces interfacial tension (IFT) through in-situ surfactant generation by alkali and improves sweep efficiency via polymer-based mobility control, typically using polyacrylamide (PAM). …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 283–296 Read article
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Noise-Driven Collective Behavior in Mean-Field Coupled Lorenz Oscillator Networks
Abstract: This work investigates the spatiotemporal dynamics of an ensemble of 100 identical Lorenz oscillators coupled through a mean-field scheme in the presence of additive noise. Building on prior studies of spatiotemporal chaos in coupled Lorenz arrays and mean-field coupled chaotic oscillators, the focus is on how the competition between deterministic coupling and stochastic forcing shapes collective behavior, including complete synchronization, desynchronization, clustered states, and noise-modified spatiotemporal chaos. The governing equations …
Published in International Journal of Advanced Control and System Engineering · Vol. 4, Issue 2, 2026 Read article