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786 articles for “Operational research”
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Percentage Changes According to Pathological Findings of Sentinel Lymph Node in Early and Early–like progressive Gastric Cancer
Abstract: Gastric cancer is considered to take the first place in incidence among visceral cancers in our country. We have studied to solve the problems to contribute gastric surgery practice, and the studying aim is to identify appearance of SLN, order of incidence and average amount. We selected 121 early and early-like progressive gastric cancer patients (Male: Female =2.7:1) who had undergone operations within last 10 years at Tumour Research Station …
Published in Research and Reviews: A Journal of Medicine · Vol. 15, Issue 2, 2025 Read article
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A Review on Smart Touchless Dustbin Systems for Hygienic Waste Management and Smart City Applications
Abstract: Municipal solid waste output has significantly increased as a result of rapid urbanization and population expansion, placing a strain on the infrastructure already in place for waste management. Traditional waste receptacles, requiring manual operation and lacking fill-level monitoring, present public hygiene risks and cause logistical inefficiencies. The emergence of the Internet of Things (IoT) and embedded automation technologies has introduced intelligent solutions to address these challenges. This paper provides a …
Published in Journal of Instrumentation Technology & Innovations · Vol. 16, Issue 2, 2026 Read article
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A Comprehensive Analysis of Various Payment Gateways for Web-based Food Ordering
Abstract: The digital revolution has ushered in profound transformations across industries, and the online food sector stands at the forefront of this evolution. With consumers increasingly prioritizing convenience and accessibility, the online food industry has witnessed unprecedented growth. In this dynamic landscape, payment gateways have emerged as indispensable components, facilitating seamless transactions and driving operational efficiency for online food restaurant websites. This research article endeavors to conduct a comprehensive analysis of …
Published in Journal of Web Engineering & Technology · Vol. 11, Issue 2, 2024 · pp. 1–6 Read article
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Kick Tolerance Modeling in Well Design and Drilling: A Comprehensive Technical Review
Abstract: Kick and blowout events in drilling operations can lead to significant losses of equipment, and in some cases, human lives. Oil and gas companies, along with oilfield service providers involved in drilling operations, face severe penalties and sanctions following such incidents. Research has demonstrated that incorporating kick tolerance models during the well planning and drilling stages can mitigate the risk of blowouts during secondary well control operations. This study reviews …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 33–58 Read article
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Optimization of Supply Chain Management Cost Reduction and Delivery Time Improvement
Abstract: Management of the supply chain is vital for every company's success. Businesses can cut expenses and speed up delivery by effectively regulating the flow of goods and services. In this study, we will explore the various strategies and best practices in supply chain management that can help achieve these objectives. We will delve into the importance of efficient sourcing, inventory management, and logistics to streamline operations and optimize the supply …
Published in Journal of Production Research & Management · Vol. 15, Issue 1, 2025 · pp. 15–21 Read article
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Control Strategy for Wind Turbine Operation under Wind Variations
Abstract: Wind energy is found to be viable energy source out of all nonconventional energy resources. Wind turbine, a major component of wind energy conversion system, is used to capture the kinetic energy associated with the wind for driving the generator. Output of wind turbines varies in accordance with the wind variations. Therefore, in order to control the power output wind turbine employed needs some control during such variations. As observed …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 7, Issue 2, 2016 · pp. 45–55 Read article
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Impact of Total Quality Maintenance Parts on The Operation of Electric Motor in Thermal Desorption Unit
Abstract: Thermal desorption Unit been a vital equipment with complex applications in the sections of waste and minerals treatments, suffers intensively in the managerial section as a whole. This paves a way towards the aim of this research work which covers the type of the impact of Total Quality maintenance electric motor parts on the Operation of the Thermal Desorption Unit [TDUs] using that of the Halden Nigeria Limited, located within …
Published in International Journal of Advance in Molecular Engineering · Vol. 2, Issue 1, 2024 · pp. 14–25 Read article
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Impact of Sustainable Business Practices and Corporate Social Responsibility (CSR) on Corporate Performance
Abstract: Corporate Social Responsibility (CSR) and sustainable business practices are becoming crucial components of corporate operations. Businesses are now adopting greener ways to run their businesses in order to achieve better results. The aim of this research is to investigate how sustainable business practices and Corporate Social Responsibility impact the performance of a company. The research aims to investigate how taking care of the environment, being ethical in business, and being …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 16, Issue 2, 2026 Read article
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Advancements in Multiple-Input DC–DC Converters for Hybrid Renewable Energy Systems: Topologies, Control Strategies, and Applications
Abstract: Multiple-input DC to DC converters (MICs) are essential components in hybrid energy systems, enabling efficient management of diverse energy inputs from renewable sources such as solar photovoltaic (PV) panels and wind turbines. These converters facilitate the seamless integration of variable power outputs, addressing the intermittent nature of renewable energy through advanced power electronics. This paper provides a comprehensive review of the topologies, control strategies, and applications of MICs within renewable …
Published in Trends in Electrical Engineering · Vol. 15, Issue 2, 2025 · pp. 10–17 Read article
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A Detailed Review on Intelligent and Robust Control Strategies for Autonomous Underwater Vehicles with Emphasis on Navigation, Path Tracking, and Stability Enhancement
Abstract: Autonomous Underwater Vehicles (AUVs) have gained significant attention due to their applications in ocean exploration, underwater surveillance, environmental monitoring, and offshore industries. The control of AUVs presents various challenges due to the highly dynamic and uncertain underwater environment, nonlinear hydrodynamics, and external disturbances. This review paper explores various control strategies employed for AUVs, including classical control methods such as Proportional-Integral-Derivative (PID) controllers, modern techniques like Model Predictive Control (MPC), and …
Published in International Journal of Electronics Automation · Vol. 3, Issue 2, 2025 · pp. 28–52 Read article
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A Study on the Use of AI and Sensors in Aerospace
Abstract: The synergistic combination of modern sensors including artificial intelligence (AI) has significantly changed the aeronautics industry's ongoing quest for increased safety, efficiency, and autonomy. The examination of the critical role these technologies play throughout the whole aerospace lifecycle from design and production to flight operations and maintenance is examined in this research. The eyes and ears of contemporary aircraft, sensors give an unparalleled amount and quality of real-time data about …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 1, 2026 · pp. 25–34 Read article
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Depolymerization of Polypropylene: A Systematic Review
Abstract: AbstractPolypropylene have become an indispensable ingredient of human life and most widely used thermoplastic in commodity applications. Polymerization of propylene is carried out by using Ziegler-Natta or Metallocene catalysts, which results in high molecular weights and crystalline polypropylene which are not required for several applications. Reduction in molecular weight of polypropylene in conventional reactors is uneconomical and complicated. Therefore to overcome this problem researchers and technologists proposed a post reactor …
Published in Journal of Polymer & Composites · Vol. 4, Issue 2, 2016 · pp. 1–16 Read article
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Analysis aspects of pressure tank: A review
Abstract: This review paper presents a detailed analysis of pressure vessels, focusing on finite element analysis (FEA) to evaluate structural integrity. Pressure vessels are widely used in industries such as chemical processing, power plants, and oil refineries, where they are subjected to extreme temperature and pressure conditions. Ensuring their safe and efficient operation requires a thorough understanding of stress distribution, deformation characteristics, and failure mechanisms. This study reviews existing research on …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 49–55 Read article
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Performance Assessment of External Source-Driven Binary Vapor Cycles with Ammonia-Water and Trans-Critical CO2: The Impact of Reheating and Pressure Variations
Abstract: This study examines the thermodynamic performance of binary vapor cycles, specifically analysing two working fluid combinations: ammonia-water mixtures and trans-critical carbon dioxide (CO2). The study aims to evaluate their efficiency, applicability, and potential for improving energy conversion systems in various thermal applications. The analysis investigates how incorporating reheating processes and adjusting operating pressures impact system performance. These two parameters play a critical role in enhancing cycle efficiency and maximizing energy …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 2, 2025 · pp. 42–49 Read article
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IoT Operated Pillbox for Old Age Persons to Remember the Medicines Dosages
Abstract: In today's fast-paced world, remembering to take medications on time can be a real challenge. Missing doses can have serious consequences for health and well-being. To combat this issue, we can leverage the power of Internet of Things (IoT) to create a smart pill box that ensures timely medication adherence. This study will guide researchers through building a simple yet effective IoT-operated pill box using an Arduino Nano, a buzzer, …
Published in Journal of Microelectronics and Solid State Devices · Vol. 12, Issue 2, 2025 · pp. 20–32 Read article
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History of the Conflict and Environmental Pollution in Ogoni Land
Abstract: This essay evaluated Ogoni land's environmental degradation and strife. Today's world is shifting from being anthropocentric to being biocentric, which promotes biodiversity. Even with increased understanding of the importance of biodiversity, third-world countries continue to face grave circumstances, especially those that are home to multinational corporations such as Nigeria. The Ogoni Community, which is situated in the Niger Delta of Nigeria, is one such community. The study used secondary data …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 14, Issue 1, 2024 · pp. 73–79 Read article
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Fortifying the Cloud: AI-Driven Security Paradigms and Evolving Threat Defenses in Modern Cloud Computing
Abstract: Organizations worldwide are raising their concerns about security maintenance while cloud computing expands rapidly to serve as a digital transformation foundation. The study explores modern cloud security patterns while also evaluating how artificial intelligence modifies the identification and evaluation of complex cyber threats along with their prevention methods. New security threats such as insider operations and DDoS attacks and data breaches alongside insecure APIs can be detected through machine learning …
Published in Journal of Operating Systems Development & Trends · Vol. 12, Issue 2, 2025 · pp. 34–40 Read article
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RFID Saving Library Professionals Time: The Way
Abstract: RFID (Radio Frequency Identification) technology has revolutionized library operations by significantly reducing the time library professionals spend on routine tasks. This article explores the implementation of RFID in libraries, focusing on how it saves time and enhances efficiency. RFID technology allows for quick check-ins and check-outs, automating inventory management, and improving the accuracy of data handling. By reducing the time required for manual processes, RFID frees up library professionals to …
Published in Journal of Advancements in Library Sciences · Vol. 11, Issue 3, 2024 · pp. 24–33 Read article
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Psychometric Analysis of an Induced Cooling Tower in a Humid Condition
Abstract: An Induced Cooling Tower (ICT) is an energy transformation device that facilitates heat and mass transfer by leveraging ambient conditions. ICTs are particularly effective in applications requiring a large heat transfer surface area, utilizing evaporative cooling of ambient air to cool hot steam. The performance of an ICT is significantly influenced by ambient humidity and temperature, making these environmental factors critical in its design and operation. As such, ICTs are …
Published in Journal of Thermal Engineering and Applications · Vol. 12, Issue 3, 2025 · pp. 22–29 Read article
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Implementation and Impact of Lean Manufacturing: A Critical Review and Framework for Adoption
Abstract: Lean manufacturing has become a vital approach for organizations seeking to enhance efficiency, reduce waste, and strengthen competitiveness in dynamic industrial environments. Although lean principles are well established, industries continue to experience inconsistencies in implementation outcomes due to differences in organizational readiness, employee involvement, and managerial commitment. This study critically reviews existing research on lean manufacturing to examine its practical impact, the factors influencing its success, and the challenges that …
Published in International Journal of Industrial and Product Design Engineering · Vol. 3, Issue 2, 2025 · pp. 1–7 Read article