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1060 articles for “Operational research”
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Advancement in Light Emitting Diode
Abstract: This paper discusses the advancements made in light-emitting diodes (LEDs) technology over the years. Whenever a current flows through an LED, the device produces light. The paper covers the basics of LED operation and the various types of LEDs, including organic LEDs (OLEDs). It then delves into the significant improvements that have been made in LED efficiency, brightness, and color rendering. These improvements have made LEDs more energy-efficient and cost-effective, …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 3, 2022 · pp. 32–46 Read article
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Ultra-Wideband Monopole Microstrip Filtenna with Hairpin Structure for Wireless Application
Abstract: Microstrip filtenna for WiMax/LTE and WLAN band has been proposed and presented. This paper presents design of bandpass filter having hairpin structure which is incorporated into the feedline. The FR4 substrate is used for the proposed antenna. The proposed filtenna has been designed and investigated using HFSS simulator. The proposed filtenna operates at 3.2 GHz. From the simulation results, it is extracted that passband of hairpin filter structure is from …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 1, 2019 · pp. 25–29 Read article
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Review of Management of Liver Trauma at Tertiary Level Hospital
Abstract: The liver is one of the most commonly injured organs in abdominal trauma. Recent advancements in imaging studies and enhanced critical care monitoring strategies have shifted the management from operative towards non operative conservative treatment. Direct suture ligation of bleeding parenchymal vessel, total vascular isolation with repair of venous injuries and the advent of control surgery have all improved outcome of hemodynamically unstable patient population. Anatomical resection of liver and …
Published in Research and Reviews: A Journal of Health Professions · Vol. 5, Issue 2, 2015 · pp. 11–17 Read article
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Molasses to Ethanol Conversion Processes Overview: Process Simulation of the Beer-Ethanol Distillation
Abstract: The main target of this research is to give an overview of ethanol production and also to investigate the distillation process in a comparative way between the simulation and the lab tests. Different samples at different stages have been measured from the fermentation section to evaluate the ethanol production rate and concentration in each one of the fermenter as well as the PH measurements have been considered over six periods …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 1–16 Read article
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Advances in Total Knee Replacement: A Systematic Review of Clinical Outcomes and Complications
Abstract: Total Knee Replacement (TKR) is a widely used surgical intervention for patients with knee osteoarthritis and other degenerative knee disorders, offering significant improvements in pain relief, functional restoration, and quality of life. This systematic review synthesizes data from multiple clinical studies to evaluate the outcomes and complications associated with TKR. To find applicable research published in the last ten years, a thorough search of electronic databases was performed. Randomised controlled …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 14, Issue 1, 2024 · pp. 41–56 Read article
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IoT-Based Automated Medication Management System
Abstract: An Internet of Things (IoT)-based automated medication dispenser with an integrated alert system is presented in this research. The device is managed by an ESP32 microcontroller, which is paired with a Real-Time Clock (RTC) module to ensure medication is dispensed at the correct time. To facilitate the dispensing process, the system uses servo and stepper motors to rotate the medication carousel and release the appropriate dosage. To determine whether the …
Published in International Journal of Solid State Innovations & Research · Vol. 3, Issue 1, 2025 · pp. 16–21 Read article
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Advanced Functional Polymers and Their Synergistic Role in Smart Composite Materials for Sustainable Industrial Applications
Abstract: Advanced functional polymers have revolutionized composite materials, offering enhanced properties such as self-healing, electrical conductivity, environmental adaptability, and high mechanical strength. These innovations are reshaping industries by enabling smarter, more efficient, and sustainable solutions. Functional polymers play a pivotal role in producing high-performance composite materials to meet the growing demands of sustainable industrial applications. Significant improvements in material properties mechanical strength, durability, thermal stability, and recyclability are achieved through the …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 12–27 Read article
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Hydroponics Culture Regulated Metabolic Variations in Plants of Medicinal Value
Abstract: The current review chiefly brings to light the importance of alternative cultivation strategies for medicinal plants about the effective enhancement of the bioactive substances. The fast-paced society is favoring the need for its cost-effective cultivation and studying the effects thereafter. The mis-steps while collecting the plant from the wild lead to identification issues, genetic and phenotypic variations, variable bioactive substances/secondary metabolites, and toxic compounds. So, cultivation happening in controlled environments, …
Published in Research & Reviews : Journal of Herbal Science · Vol. 13, Issue 2, 2024 · pp. 14–20 Read article
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Navigating the Antenna Frontier for Emerging IoT Technologies
Abstract: Internet of Things (IoT) is rapidly transitioning from niche applications to a pervasive, interconnected fabric of intelligent devices, demanding unprecedented levels of performance, reliability, and miniaturization from its constituent components. At the heart of this revolution lies the antenna, the crucial interface between the digital and physical realms. This paper delves into the intricate and evolving landscape of IoT antenna design, specifically addressing the unique challenges and opportunities presented by …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 3, Issue 2, 2025 · pp. 1–10 Read article
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Study of Self -Healing Network System
Abstract: In this networking world, self-healing explains that if any device or system which is not operating correctly can be restored to its normal position without human intervention by making necessary adjustments. At present, developers are finding the cost of servicing a product too expensive (in some cases it has crossed the cost of the product), so they are trying to make such products that can be fixed on their own …
Published in Current Trends in Information Technology · Vol. 8, Issue 1, 2018 · pp. 22–26 Read article
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Examining the Effects of MIST in RSA and CRT-RSA to Resist Power Analysis Attacks
Abstract: The need of security has turned into a vital area of research in domain of computer science. The evolution of side channel attacks has challenged the vulnerability of almost all the symmetric and asymmetric cryptographic techniques available worldwide. This has raised the urgency in designing mitigation techniques against such volatile attacks. Power analysis attacks, which is the most popular side channel attacks has proved to be a challenge for most …
Published in Journal Of Network security · Vol. 4, Issue 3, 2016 · pp. 11–22 Read article
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A Review on Heavy Metal Removal Techniques in Water Treatment
Abstract: The removal of heavy metal ions from wastewater is crucial for environmental safety and human health due to the toxic and persistent nature of these pollutants. This review comprehensively examines various water treatment methods, including adsorption, membrane filtration, chemical precipitation, electrochemical, and photocatalytic processes. Each technique is critically analyzed in terms of removal efficiency, operating conditions, and their respective advantages and limitations. Adsorption methods, particularly those using bioadsorbents, have gained …
Published in Journal of Water Pollution & Purification Research · Vol. 11, Issue 3, 2024 · pp. 15–28 Read article
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Smart Street Lighting Enabled by Wireless Sensor Networks: A Path to Energy Efficiency and Fault Monitoring
Abstract: The increasing demand for energy efficiency and smart city infrastructure has led to the adoption of innovative technologies such as wireless sensor networks (WSNs) in street lighting systems. This research explores the design and implementation of a smart street lighting system (SSLS) integrated with WSNs to enhance energy efficiency and enable real-time fault detection. The proposed system utilizes a network of wireless sensors to monitor ambient light levels, vehicular movement, …
Published in International Journal of Wireless Security and Networks · Vol. 3, Issue 1, 2025 · pp. 24–38 Read article
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Innovations in Mineral Science and Engineering for Sustainable Resource Development
Abstract: The growing global demand for mineral resources, coupled with increasing environmental and social concerns, has intensified the need for sustainable approaches in mineral science and engineering. Traditional mining and mineral processing practices, while essential for industrial development, are often associated with high energy consumption, resource depletion, and environmental degradation. In response, recent innovations in mineral science and engineering have focused on improving resource efficiency, minimizing environmental impact, and ensuring long-term …
Published in International Journal of Minerals · Vol. 3, Issue 1, 2026 · pp. 31–36 Read article
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Hand-Writing Recognition Using Structural, Statistical Features
Abstract: One of the very crucial challenges in pattern recognition operations is handwriting recognition, often known as handwritten number recognition. The processing of bank checks, the sorting of postal mail, the entry of data into forms, etc. are all procedures involving number recognition. The ability to create an efficient algorithm that can retrieve handwritten integers submitted by drug users via a scanner, tablet, and other digital gadgets is at the core …
Published in Journal of Electronic Design Technology · Vol. 14, Issue 1, 2023 · pp. 8–14 Read article
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Comparison of Temporalis Fasia and Cartilage Graft in Tympanoplasty Type 1: A Randomized Clinical Trial
Abstract: To compare the clinical and audiological outcomes of the type 1 tympanoplasty performed with either tragal composite island graft or temporalis fascia graft, in patients with chronic otitis media. Pateints with chronic otitis media with medium and large central perforation, dry ear at least for one month, intact ossicular chain were included in randomized clinical trial. Out of 40 subjects, 20 cases were repaired with tragal composite island graft and …
Published in Research and Reviews : Journal of Surgery · Vol. 4, Issue 1, 2015 · pp. 5–11 Read article
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Optimization of Sensing Parameters Using PSO, GAAlgorithms for Cognitive Radio
Abstract: Cognitive Radio (CR) is an emerging technology, which has the potential of being a disruptive technology, and will enable the future wireless world. In this radio, spectrum sensing is an appropriate tool to study surrounding environment in order to illustrate the suitable scenario for sharing spectrum between users.The main objective of spectrum sensingis to provide more spectrum access opportunities to cognitive radio users without interfering with the operations of the …
Published in Recent Trends in Sensor Research & Technology · Vol. 2, Issue 3, 2015 · pp. 23–30 Read article
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Exploring the Versatility of Fabry-Pérot Interferometers: From Spectroscopy to Sensing
Abstract: The fundamental concept of operation for the Fabry-Perot interferometer is interference. Coherent light bounces back and forth between two extremely reflecting mirrors as it travels through the interferometer. The device operates on a pattern of constructive and destructive interference that is produced by this. By carefully regulating the space between the mirrors, a resonant optical cavity is created. The Fabry-Perot interferometer (FPI) is one of the most important and versatile …
Published in Journal of Semiconductor Devices and Circuits · Vol. 11, Issue 1, 2024 Read article
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Resilient Shell-Based Networking Frameworks for DTN Environments: Enhancing Reliability and Security across Disrupted and High-Latency Satellite Channels
Abstract: The foundation of DTN, as suggested by the Internet Research Task Force (IRTF), is the definition of a suite of protocols that function in networks with periodic disconnections and long- duration route conditions. A permanent end-to-end channel from the source to the destination is the foundation of traditional IP-based networking. However, DTN employs a store-carry- forward approach that gives intermediary nodes the ability to temporarily hold messages (or bundles) until …
Published in Journal of Advances in Shell Programming · Vol. 12, Issue 3, 2025 Read article
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DESIGN AND IMPLEMENTATION OF AN ARDUINO-BASED WIRELESS POWER CONSUMPTION MONITORING AND CONTROL SYSTEM
Abstract: The increasing demand for electricity and the inefficiencies associated with traditional metering systems necessitate the development of advanced solutions for monitoring and controlling power consumption. This study presents the design and implementation of an Arduino-based wireless power consumption monitoring and control system aimed at providing real-time feedback and efficient energy management. The system incorporates the Arduino Uno R3 microcontroller, ACS712 current sensor, relay module, and Ethernet shield to enable accurate …
Published in Trends in Electrical Engineering · Vol. 16, Issue 1, 2025 · pp. 19–31 Read article