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1059 articles for “Operational research”
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Sustainable Supply Chain Models for Polymer and Composite Manufacturing: A Data-Driven Assessment of Circular Material Flows
Abstract: Polymer and composite manufacturing is faced with growing demands in waste reduction, resource management, and making a shift towards circular economy principles. Although urgent, the adoption of data-driven tools in each step of a supply chain to facilitate efficient cyclic material flows is low. This paper designs and empirically analyzes sustainable supply chain design in polymer and composite production with a focus on digital traceability, closed-loop and material recovery, and …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 54–71 Read article
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Dual-Wavelength and Tunable Fiber Lasers for Microwave Photonic Applications
Abstract: Dual-wavelength and tunable fiber lasers have emerged as key enabling technologies for advanced microwave photonic (MWP) systems, offering high spectral purity, wide tunability, and enhanced stability. These laser sources play a critical role in generating and processing microwave and millimeter-wave signals through optical means, enabling low-loss transmission and immunity to electromagnetic interference. This review presents recent progress in the design and implementation of dual-wavelength and tunable fiber lasers, highlighting their …
Published in Journal of Microwave Engineering and Technologies · Vol. 13, Issue 1, 2026 · pp. 17–25 Read article
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Enhancement in the COP of Thermoelectric Cooler Used for Cooling of Small Electronic Circuits
Abstract: Amidst growing environment concern, the need for alternative methods of cooling is on the rise, demanding higher intervention of technological advances. Conventional cooling systems working on CFC refrigerant pose threat to environment. The present work deals with performance investigation of thermoelectric cooler based on Peltier effect. Air cooling and water cooling systems are studied involving several parameter modifications. From the experimental work it is evident that optimum cooling is achieved …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 3, 2019 · pp. 20–23 Read article
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Enhancing Health of Workers in the Water Sector Through Effective Governance, Risk Management, and Environmental Safety Standards
Abstract: The water sector is fundamental to achieving sustainable development, safeguarding public health, supporting economic advancement, and ensuring environmental preservation in any nation. This paper explores how effective governance, comprehensive risk management frameworks, and strict adherence to environmental safety standards can contribute to improving the health and well-being of engineering professionals and workers within the water sector. The research methodology comprises an extensive literature review, detailed case studies, field visits to …
Published in Journal of Water Resource Engineering and Management · Vol. 12, Issue 3, 2025 · pp. 20–30 Read article
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Subacute Intestinal Obstruction: Clinical Profile and Short-term Follow up in a Tertiary Care Hospital in Bangladesh
Abstract: Background: Subacute intestinal obstruction (SAIO) implies incomplete, intermittent, or recurrent obstruction. The diagnosis of SAIO is usually delayed and several patients continue to suffer from symptoms for weeks and months due to the waxing and waning nature of the disease. Objective: To see the clinical presentation, aetiology, type of management and short-term outcome of the patients of SAIO. Method: This prospective cohort study was performed in the Department of Gastroenterology, …
Published in Research and Reviews : A Journal of Immunology · Vol. 8, Issue 3, 2018 · pp. 19–23 Read article
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Recycle and Reuse of Water Treatment Plant Sludge as a Coagulant in Sewage Treatment Plant
Abstract: Today, with environmental problem most of the urban and semi-urban settlements all over the world, face the problem of waste water and solid waste disposal. So, there should be proper arrangement for the disposal as the waste sludge generated from water treatment plant. One of the ways to achieve this is to recycle and reuse the water treatment plant sludge and thus minimize problem of disposal of sludge. The primary …
Published in Journal of Water Pollution & Purification Research · Vol. 7, Issue 2, 2020 · pp. 27–35 Read article
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Awareness and Utilization of UGC-Infonet Digital Library Consortium among the Library Users of Universities of Haryana
Abstract: In India, the scenario of the higher education system is very complex and large. As per the latest statistics from the UGC website, it consists of 47 central universities, 381 state universities, 123 deemed universities, 291 state private universities and 91 institutes of national importance. The university libraries play a significant role in higher education system. The UGC launched the UGC-Infonet Digital Library Consortium as an emerged "state of art" …
Published in Journal of Advancements in Library Sciences · Vol. 6, Issue 1, 2019 · pp. 6–15 Read article
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Optimization of Production Processes to Minimize Waste and Improve Efficiency in Automobile Servicing Plant Using Lean Six Sigma
Abstract: This study focuses on optimizing production processes within an automobile servicing plant to minimize waste and enhance efficiency through the application of lean six sigma (LSS) methodologies. Utilizing a case study approach, the research addresses real-time challenges related to productivity and waste reduction. Data collection involves assessing machine functionality metrics, material and labor flow at various stages of the servicing process. The optimization strategy integrates lean tools including value stream …
Published in International Journal of Manufacturing and Production Engineering · Vol. 2, Issue 2, 2024 · pp. 47–63 Read article
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A Study on Privacy Preserving Techniques in Data Mining
Abstract: Data Mining (DM) is the technique of examining data from specific summarizing and perspectives the outcome as useful information. It has been describing as "the non-trivial procedure of new, potentially helpful and ultimately conceivable patterns and identifying valid in data". The word “Knowledge” in KDD submits to the discovery of example which is removing since the processed data. Preserving privacy is becoming a key apprehension as personal data is publicly …
Published in Journal of Operating Systems Development & Trends · Vol. 5, Issue 2, 2018 · pp. 18–23 Read article
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Very Short-Term Load Forecasting Using Gaussian Process Regression
Abstract: Very Short-Term Load Forecasting (VSTLF) is critical for real-time grid stability, frequency control, and economic dispatch. This study proposes a Gaussian Process Regression (GPR)-based framework for one-hour-ahead load forecasting using hourly data from January 2020 to April 2024 for Delhi, India. The model incorporates meteorological data such as temperature, humidity, and dew point with lagged load values. The research takes into account time-related dependencies and seasonal changes in order to …
Published in Trends in Electrical Engineering · Vol. 16, Issue 1, 2025 · pp. 91–104 Read article
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Strategies for Eradicating Water Supply Problems and Pollution Issues in Challenging Economy of Nigeria
Abstract: There are sporadic pollution issues and water supply-related problems in the Nigerian environment which calls for the urgent attention of civil engineers. This study examines strategies for eradicating water supply problems and pollution issues in the challenging economy of Nigeria. The methodology for this research work includes a site survey, case studies, visitation to some polluted sites and a literature survey. Critical strategies that are sustainable and achievable toward solving …
Published in Journal of Water Resource Engineering and Management · Vol. 9, Issue 3, 2022 · pp. 21–28 Read article
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The Critical Role of Cyber Threat Intelligence in Countering Terrorism: Challenges, Successes and Policy Recommendations
Abstract: Cyber threats from terrorist organizations pose severe risks to national security, economic stability and public safety. Cyber threat intelligence (CTI) has emerged as a crucial capability for pre-empting and disrupting cyberterrorism attempts through systematic monitoring of threat actors, along with analytical frameworks to contextualize tradecraft. This paper provides an extensive overview of CTI, analyzing the state of the art of intelligence gathering frameworks against threat groups by assessing technologies like …
Published in Journal Of Network security · Vol. 11, Issue 3, 2023 · pp. 22–29 Read article
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Smart-Waste-Management-System
Abstract: The rapid urbanization and increasing waste generation pose significant challenges to traditional waste management systems, necessitating innovative solutions that integrate economic principles and management strategies. In order to enhance trash transportation and recycling procedures, this paper investigates the deployment of a Smart trash Management System that makes use of Internet of Things (IoT) components and machine learning algorithms. By applying economic principles such as cost-benefit analysis and resource allocation, and …
Published in International Journal of Environmental Noise and Pollution Control · Vol. 3, Issue 2, 2025 · pp. 18–27 Read article
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AI-Driven Cyber Threat Detection and Response Framework for Higher Educational Institutions (HEIs)
Abstract: Higher educational institutions (HEIs) are increasingly exposed to complex cyber threats due to their open-access digital ecosystems, diverse user populations, and extensive research infrastructures. Conventional signature-based intrusion detection systems often fail to detect zero-day and evolving attacks, creating an urgent need for intelligent and adaptive security mechanisms. This research introduces an AI-based framework for detecting and responding to cyber threats, specifically designed for HEIs. The framework employs an unsupervised machine …
Published in Journal Of Network security · Vol. 14, Issue 2, 2026 · pp. 28–34 Read article
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Hydrodynamic and Sedimentation Modelling for Capacity Optimization of OR1, OR2, and Fertilizer Berths at Visakhapatnam Port, India
Abstract: This study presents comprehensive hydrodynamic and sediment transport modeling undertaken to assess the impact of proposed deepening and development at the Western Arm of the Visakhapatnam Inner Harbor, India, encompassing OR1, OR2, and Fertilizer berths. The work, carried out by the Central Water and Power Research Station (CWPRS) for the Visakhapatnam Port, utilized the MIKE 21 Flexible Mesh (FM) finite-volume model to simulate hydrodynamic and siltation conditions under existing and …
Published in Journal of Water Resource Engineering and Management · Vol. 13, Issue 1, 2026 · pp. 33–51 Read article
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Digital Farming: A Review on Agricultural Technologies and Data- Driven methods
Abstract: The article provides a comprehensive overview of the digitalization of farming and explores the technologies and data-driven approaches revolutionizing modern agriculture. The study examines the role of digital technologies such as precision agriculture, Internet of Things (IoT), artificial intelligence (AI), and data analytics in transforming various aspects of farming practices, including crop management, livestock production, and farm operations. The article reviews the application of sensor technologies for real-time monitoring of …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 12, Issue 1, 2023 · pp. 9–15 Read article
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Performance Measures in Lean Production Settings: A Case Study
Abstract: The purpose of this paper is to outline how the performance measurement system of a large manufacturing unit has evolved since the implementation of a lean-based production system. In order to fulfill the purpose, this paper has been divided into four sections. The first section outlines the theoretical background and underlines the developments made in the fields of PMM and operations management over the last decades. The second part presents …
Published in Journal of Production Research & Management · Vol. 2, Issue 1-2-3, 2012 · pp. 8–17 Read article
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Outcome of Circumferential Penile Skin versus Dorsal on Lay Buccal Mucosal Urethroplasty for Long Anterior Urethral Strictures: A Prospective Single Centre Experience with Five Years Follow-up
Abstract: Buccal mucosa has become the most popular substitute in the management of urethral strictures. Prior to it, penile skin was the preferred tissue for transfer. In order to see which one is better, we study the outcome of penile versus buccal mucosa for long anterior urethral strictures. A total of 76 patients with long anterior urethral strictures of more than 5 cm were randomly divided into two groups in the …
Published in Research and Reviews : Journal of Surgery · Vol. 5, Issue 1, 2016 · pp. 18–23 Read article
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Comparison Performance Analysis of Multi-Wavelet Based Watermarking Techniques for Medical Images Using Genetic Algorithm (GA)
Abstract: In this paper, the scaling factor of the watermark is the significant parameter that helps in improving the imperceptibility and robustness against attacks. The tradeoff between the imperceptibility and robustness is considered as an optimization problem and is solved by applying genetic algorithm (GA). The water marking is proposed to be implemented using a hybrid approach which encompasses discrete wavelet transforms (DWT), lifting wavelet transforms (LWT) and singular value decomposition …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 3, Issue 1, 2016 · pp. 15–23 Read article
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Idempotent Semiring Path Algebras and Fuzzy Dominance Automata for Multi-State Communication Reliability
Abstract: A semiring-based theory is proposed for multi-state communication reliability with fuzzy dominance constraints. Links are weighted in the max-product semiring, while nodes carry dominance coefficients and operating states that modulate admissible transitions in a weighted automaton. The paper derives semiring matrix products, Kleene closures, fixed point equations, congestion-regularized path scores, and reliability inequalities. A fuzzy dominance automaton is introduced so that route selection depends not only on link reliability but …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 13, Issue 2, 2026 · pp. 07–14 Read article