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123 articles for “Fan”
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Factors Associated with Relapse in Schizophrenia Patients Who are on Follow Up at Ayder Comprehensive Specialized Hospital and Mekelle General Hospital, Tigray, Ethiopia, 2018/19
Abstract: Schizophrenia is a chronic and disabling illness; relapse is recognized as the reemergence or the worsening of positive and/or negative psychotic symptoms, hospital admission or readmission. Factors that associated with relapse; substance use disorders, noncompliance of medicine, side effect experience of antipsychotic, poor social support, co-morbidity of other mental illness and chronic medical condition. The aim of this study was to identify factors associated with relapse in schizophrenia patients who …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 10, Issue 1, 2020 · pp. 9–15 Read article
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Assessment of Heavy Metals in Underground Water Situated at Automobile Workshops in Ede Metropolis
Abstract: The study investigated the determination of heavy metals concentration (Co, Cd, Ni, Pb, and Cr) in underground water situated in auto-mobile workshops in Ede metropolis. Four different samples were collected, two from the auto-mobiles workshop while two were collected 50 meters away from the Auto-mobiles workshop in both local governments which served as control. The result was Cr-0.416– 0.477 mg/L; Cd-0.018–0.040 mg/L; Pb-0.038–0.066 mg/L; Ni-0.042–0.052 mg/L; Co-0.043–0.200 mg/L. Cobalt has …
Published in Research & Reviews : Journal of Statistics Read article
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Emerging Threats in Wireless Network Security: A Contemporary Analysis
Abstract: A crucial component of the architecture of contemporary information technology is wireless network security, as wireless communications .Given the continued importance of wireless communication in today's information technology architecture, wireless network security Since wireless communication is becoming more and more essential to our everyday lives, wireless network security is an essential component of today's information technology infrastructure. An overview of the main ideas, problems, and solutions for protecting wireless networks …
Published in International Journal of Satellite Remote Sensing · Vol. 1, Issue 2, 2023 · pp. 1–9 Read article
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CFD Analysis of a Bladeless Propelling Unit for the Drones
Abstract: Conventionally, unmanned aerial vehicles (UAVs) and autonomous aerial vehicles (AAVs) utilize bladed propellers to produce lift, altitude, and thrust for propulsion. Yet, these blades are susceptible to abrasion when they contact external surfaces, resulting in diminished operational efficiency over time. Our ongoing investigation introduces a pioneering approach by integrating bladeless propeller technology, drawing inspiration from Dyson’s Bladeless Fan Theory. This study seeks to address the wear-related shortcomings of conventional propeller …
Published in Recent Trends in Fluid Mechanics · Vol. 11, Issue 3, 2024 · pp. 37–46 Read article
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A Comprehensive Review of DiagnoTech: Your Healthcare Companion
Abstract: The review paper “A comprehensive review of DiagnoTech: Your Healthcare Companion” brings forth a transformative solution in the advancements of healthcare technology which aims to be an all-in-one Healthcare Companion. It explores the four key elements of DiagnoTech: Lab Tests, Body Mass Index (BMI) Calculation, Yoga and Diet Recommendations, and disease prediction. It brings to light each of these features’ functionalities, integration, and their collective impact on the healthcare industry. …
Published in International Journal of Mobile Computing Technology · Vol. 2, Issue 2, 2024 · pp. 24–32 Read article
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Experimental and Numerical Assessment of Flexural Shear Behavior of RC Beams Enhanced using Hybrid CFRP–GFRP U-Wrap System
Abstract: This study examines the Reinforced Concrete beams strengthened in Flexural-shear using a hybrid Fibre Reinforced Polymer (FRP) system that combines carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP) in a U-wrap configuration. Six beams totally were made and the results were tested under 4 point bending moment using LVDT, in which three beams were of control beams without strengthening and another three externally wrapped using hybrid CFRP-GFRP …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 328–338 Read article
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Mechanical Performance and Material Properties of Nsm CFRP Polymer System
Abstract: Near-surface mounting systems are an advanced embedded technique application of CFRP composites in which the efficiency of the structure is mostly dominated by polymer matrix properties and interface stress transfer mechanisms. This review presents a holistic materials-based perspective on the experiment, analytical, and numerical studies conducted on the NSM-CFRP composite system, specifically on the behavior of the epoxy adhesive, interfacial behavior of composite–substrate system, and related structure–property relationships. The literature …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 311–319 Read article
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Interfacial Bonding and Performance of Polymer-Based CFRP Composites in Externally Applied Configurations
Abstract: Polymer-based carbon fiber reinforced polymer (CFRP) composites are widely used for externally bonded strengthening and retrofitting applications due to their high strength-to-weight ratio and adaptability to existing structures. In such systems, overall performance is governed not only by the fiber–matrix interaction within the laminate, but more critically by the polymer adhesive layer and its interaction with the substrate. Polymer chemistry, interfacial bonding mechanisms, processing conditions, and environmental exposure collectively influence …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 952–966 Read article
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A Comprehensive Review of Green Hybrid Polymer–Inorganic Composite Systems Incorporating Palm Tree Ash and Titanium Dioxide
Abstract: The increasing requests on sustainable and high performance systems have motivated extensive investigations on polymer-based hybrid systems with bio-derived and/or functional inorganic fillers. In this review, the importance of palm tree ash (PTA) and titanium dioxide (TiO₂) as synergistic fillers for polymer–inorganic hybrid composites, particularly about structure–property relations, interfacial adhesion and durability performance, is discussed. Agricultural waste-derived palm tree ash (PTA) plays as a silica-rich filler which not only aids …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 1811–1820 Read article
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Advanced Fiber-Reinforced Polymer Composites: Processing, Nano-Modified Adhesive Technologies, Interfacial Engineering, Durability, and Structural Applications—A Comprehensive Review
Abstract: Fiber reinforced polymer (FRP) composites are considered to be one of the most universal categories of advanced engineering materials owing to their unique properties such as outstanding strength-to-weight ratio, corrosion resistance, fatigue durability, and wide opportunities for design. Innovations in the fields of fiber reinforcement, polymer matrix system, composite manufacturing technologies, and nano-modified adhesives technology have greatly extended the range of applications of this type of materials in aerospace, automotive, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 980–990 Read article
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Recent Routing Protocols in UAV Networks: Classifications, Challenges, and Future Directions
Abstract: Routing protocols enable reliable communication in Unmanned Aerial Vehicle (UAV) networks, particularly Flying Ad-hoc Networks (FANETs), amid high-speed 3D mobility, dynamic topologies, and energy limits. Key challenges include intermittent links due to mobility, limited energy resources, variable network density, and the need to minimize end-to-end delay while maximizing throughput and fault tolerance. This paper classifies recent UAV routing protocols into topology-based routing protocols, position-based routing protocols, and hierarchical-based routing protocols. …
Published in International Journal of Algorithms Design and Analysis Review · Vol. 4, Issue 2, 2026 Read article
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Hybrid Quantum–Machine Learning Framework for Nonlinear Rheological Modeling of Polymer and Composite Materials
Abstract: In polymer and composite materials, a major challenge lies in predicting their nonlinear rheological response, owing to complex multiscale interactions that are not captured by traditional constitutive laws or conventional machine learning approaches. In this study, a hybrid Quantum Machine Learning (QML) model comprising Quantum Support Vector Machine (QSVM) and Quantum Neural Network (QNN) architectures is proposed for viscosity prediction without requiring any specific rheological equation. To train and test …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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A Review on Quad Band Microstrip Antenna for GSM and GNSS Application
Abstract: Micropstrip or patch antennas are also known as a printed antenna fabricated on printed circuit board (PCB). Microstrip antennas are low cost, have a low profile, low weight and are easily fabricated [1]. They are used atmicrowave frequencies. In this review paper, a survey on quad band operations in patch antenna papers, which have been used by authors for designing of low profile, small compatible patch antenna, have been presented. …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 1, 2017 · pp. 1–5 Read article
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Available Transfer Capability (ATC) under Deregulated Environment
Abstract: The structure of the power industry is moving towards deregulated environment from the regulatory environment (monopoly). With deregulation taking place in the power industry, it introduces a more competitive environment in terms of free choice of suppliers for the trading of electricity. Monopolies of an industry will lead to a poor performance from the sector as there are no competitions for the sole company to strive for improvement. It will …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 85–88 Read article
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Impact of New-Defined Criteria on Evaluation of Depth of Investigation for Radial and Transient Linear Flow
Abstract: The depth of investigation (DOI) is a fundamental parameter in many reservoir engineering calculations, whereas there is no generally accepted industry standard and evaluation method so far. Inconsistencies or errors will arise when unconditionally using various formulae to calculate the value of DOI. This paper investigated the key issues about DOI in terms of production rate, pressure cut-off value, especially the selection of evaluation criteria. New relations for DOI evaluation …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 7–18 Read article
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Performance Analysis of Flying Ad Hoc Network with Different Antennas Using Ricean Fading
Abstract: AbstractWith regards to FANET, utilization of directional antenna can to a great extent decrease the radio interference, in this way enhancing the use of wireless medium and thus the system throughput. Execution of FANET is low under the omnidirectional antenna system contrasted with smart antenna system when Ricean fading model is utilized. Directional antenna covers huge zone and transmits extensive no. of packets, since it centers in the desired direction …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 5, Issue 2, 2018 · pp. 1–7 Read article
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Effectiveness of Routing Protocol Using Cisco Packet Tracer
Abstract: Routing protocols play a crucial role in modern computer networks, and their effectiveness can impact the performance and reliability of a network. The choice of the routing protocol depends on the network topology and requirements, and selecting the right protocol can be a challenging task for network administrators. Cisco Packet Tracer is a simulation tool that allows network administrators to design, configure, and test network topologies in a virtual environment. …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 9, Issue 3, 2022 · pp. 31–39 Read article
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Development of cruise control for two wheelers
Abstract: In the modern day automotive autocruise control system there is a control loop which controls the throttle that is usually controlled by the driver with the handle lever, and maintains the speed of the vehicle at a preset speed which offers safety and fatigue less drive to the driver. In the proposed work, throttle valve of the carburetor is operated in two ways, manually by throttle handle and automatically by …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 100–104 Read article
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ASSESSMENT ON THE KNOWLEDGE, ATTITUDE AND PRACTICE OF SUBSTANCE USE AMONG PREPARATORY STUDENTS OF MEKELLE.
Abstract: Background: Substance abuse has been defined by Asuni et al. as 'excessive or inappropriate use of psycho-active substance by a person; such use being considered or judged to be illegal/immoral by the culture and resulting in harm to the person or society'. Globally, the UNODC estimates that between 155 and 250 million people, or 3.5% to 5.7% of the population aged 15–64 years, had used illicit substances at least once …
Published in Research and Reviews: A Journal of Medicine · Vol. 8, Issue 3, 2018 · pp. 6–26 Read article
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Assessment of Knowledge, Attitude and Practice of Blood Donation Among Students of Health Science in Private University College in Mekelle, Tigray, and Ethiopia
Abstract: Background: Human blood is an important element of human life. Incidentally, there is no substitute to blood hence donation of blood by humans is of utmost importance. Millions of blood units are collected from donors every year but demands are increasing day by day that is pushing for sufficient and timely provision of blood. Because of that the theme for Blood Donation Day in 2017 focuses on emergency situations, “Give …
Published in Research and Reviews: A Journal of Medicine · Vol. 8, Issue 3, 2018 · pp. 30–46 Read article