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2000 articles for “W.H.O” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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TO IMPROVE THE EFFICIENCY OF SILICA FUME CONCRETE
Abstract: A suitable introduction of silica fume in concrete improves both the mechanical and chemical properties of the concrete. The long-live compressive strength of silica-fume concrete has been recently questioned by some researchers and they were regular in touch of it.This paper reports the results of compressive strength data on strength of silica which is on 4- to 6-year-old cores attained from well-documented field experiments which where both silica-fume and non-silica …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 39–44 Read article
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Information Management in Construction Project: Potential of Blockchain Technology
Abstract: It has been well established through research works and experience of construction professionals that smooth, transparent, traceable information flow is absolutely essential for better coordination amongstakeholders in a project. This challenge of information management has been met to a good extent through centralized information systems, tailor made for each organization. However, poor information management and resulting poor coordination still persists in projects. Through extensive literaturereviews as well as detailed discussion …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 8, Issue 2, 2022 · pp. 23–37 Read article
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Magnitude, risk factors and preventive strategies for Post ICU Care Syndrome (PICS) in ICU Setting: A Systematic Review
Abstract: After leaving the ICU, patients may suffer from what is known as Post-Intensive Care Syndrome (PICS), which can happen to any person who has been in the ICU. Patients with PICS present with physical, cognitive & psychiatric impairments. PICS may be induced if a person was on prolonged mechanical ventilation, experienced sepsis, multiple organ failure and a prolonged duration of “bed-restore deep sedation”. It has been estimated that Post-Traumatic stress …
Published in International Journal of Cardiovascular Nursing · Vol. 8, Issue 1, 2022 · pp. 16–21 Read article
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The Performance of Microbial Lipase Immobilized onto Ion Exchange Resins and onto the Natural Zeolite Clinoptilolite
Abstract: The paper describes a study into the performance of a microbial lipase immobilized on to four different ion exchangers. Lipase from the yeast Candida rugosa was immobilized onto the anionic ion exchange resins Dowex MWA-1, Purolite A109, and Amberlite IR45. The performance of the immobilized lipase in each case was evaluated by measuring the immobilization efficiency and by following the reaction kinetics of hydrolysis of a tri-glyceride ester to free …
Published in International Journal of Chemical Separation Technology · Vol. 2, Issue 2, 2016 · pp. 24–32 Read article
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A Low-Carbon Economic-Load Dispatching Using PSO Technique
Abstract: This paper presents the solution of economic-load dispatch problem with quadratic cost function by using particle swarm optimization (PSO). PSO technique is useful at solving optimization problems with both single- and multiple-objective functions with non-convex, discontinuous, noisy and non-differentiable solution. The results show that PSO has the ability of minimizing the cost of productions in power system operations. Carbon emission characteristics of all kinds of power units are analysed against …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 4, Issue 1, 2018 · pp. 17–25 Read article
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Urban Housing Affordability in Indian Context
Abstract: Abstract “Affordability” has been perceived to be the key problem in the housing sector, particularly for lower income groups. Defining affordable housing in India is a difficult task given that for every square kilometer of the country the dynamics of the market are different. Developing affordable housing in Indian cities faces significant challenges due to several economic, regulatory and urban issues. There are new forms of poverty in urban areas, …
Published in International Journal of Town Planning and Management · Vol. 1, Issue 2, 2015 · pp. 1–8 Read article
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“ADAPTIVE REUSE OF HERITAGE BASED ON ECONOMIC ASPECTS”
Abstract: Heritage is the inheritance of socio-economic cultural traditions and physical artifacts from past generations. It has been passed down to us and is a significant component of our Heritage sites and monuments that attract tourists, and the preservation and celebration of heritage create jobs and stimulate the local economy. One of the techniques to encourage thelocal economy is adaptive reuse, one of the aspects of adaptive reuse is the economic …
Published in International Journal of Architectural Heritage · Vol. 6, Issue 1, 2023 · pp. 61–67 Read article
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Climate Change: A Global Issue
Abstract: Our Earth’s climate has transformed throughout history. Climate change is a complex process and it is believed that if we do not firmly curb it now, there are going to be catastrophic consequences. There have been several cycles of glacial advance and retreat. An overwhelming scientific consensus maintains that climate change is primarily because of the human usage of fossil fuels, which releases CO2 and other greenhouse gases into the …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 1, Issue 2, 2015 · pp. 20–24 Read article
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EFFECTS OF THE LABORATORY ASSISTED LECTURE METHODS ON ACADEMIC ACHIEVEMENT OF GRADE 8 STUDENTS IN CHEMISTRY SUBJECT IN FINOTE SELAM WOREDA, AMHARA REGION
Abstract: In Science education, laboratories are considerably important because they provide the opportunity for students to perform various hands-on activities. The aim of this study was to examine the comparative effects of the laboratory assisted and lecture methods on primary school students’ achievements in chemistry subject. With this aim, four research questions and four hypotheses guided the study. Sixty six (66) students (12 male and 11 female in the experimental group …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 4, Issue 2, 2018 · pp. 1–9 Read article
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Eco-Friendly Starch-Iron-Oxide Nanoblends from Fruit Peel Waste – A Green Waste Valorization Approach
Abstract: Utilization of agricultural wastes for production of useful biomaterials has attracted a lot of interest due to their environmental and economic benefits. In the present study, green banana peels were used as bio sustainable raw materials from which starch was extracted, and pomegranate peels were used as an ecofriendly raw material for the green synthesis of iron oxide nanoparticles. The green banana peels were also found to be a potential …
Published in International Journal of Green Chemistry · Vol. 12, Issue 2, 2026 · pp. 29–39 Read article
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A S-BAND “SQUQRE SHAPE” METAMATERIAL STRUCTURE TO ENHANCE THE PERFORMANCE OF RECTANGULAR MICROSTRIP PATCH ANTENNA
Abstract: A communication system always involves a spectrum or band of frequencies and as such the question of bandwidth is an important parameter in RMPA. But miserable efficiency, narrow bandwidth and high return loss are the major drawbacks of Micro-strip patch antenna. Even though, to enhance the characteristic parameter of RMPA, metamaterial is founded as a better candidate. The main motive of this design is to improve the distinctive parameter of …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 1, 2015 · pp. 14–19 Read article
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PETROLEUM PRODUCTS: FRACTIONS OF CRUDE OIL
Abstract: Petroleum (also called crude oil), is a source of energy which is non-renewable. It is a naturally occurring liquid found beneath the Earth’s surface (Lithosphere) that can be refined into fuel. Petroleum is a fossil fuel, which means that it has been created by the decomposition of organic matter over millions of years. It is developed in sedimentary rock under severe heat and pressure. Petroleum or crude oil is a …
Published in International Journal of Analytical and Applied Chemistry · Vol. 5, Issue 2, 2019 · pp. 17–33 Read article
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Recent Advances in Fused Heterocyclic Pyridine Compounds for Bioactive Anti-Inflammatory Drug Discovery
Abstract: Heterocyclic compounds, particularly those fused with pyridine rings, have emerged as promising candidates in the search for novel bioactive agents with anti-inflammatory properties. This review highlights recent advances in the discovery and development of fused heterocyclic pyridine compounds as potential anti-inflammatory drugs. The unique structural properties of fused heterocycles contribute to their ability to modulate key inflammatory pathways. By targeting specific molecular targets involved in inflammation, such as cytokines, enzymes, …
Published in International Journal of Chemical Separation Technology · Vol. 10, Issue 1, 2024 · pp. 1–7 Read article
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Advancements in Material Science for Prolonging Service Life in Steam Turbine Components: A Review
Abstract: The longevity and performance of steam turbine components, which are essential assets in the infrastructure for power generation, are being greatly enhanced by advances in material science. This paper examines recent advancements made with the goal of using innovative materials and coatings to increase the longevity and effectiveness of turbine components. This review's scope includes an examination of cutting-edge materials, including composites, high-performance alloys, and ceramics, that are designed to …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 10, Issue 1, 2024 · pp. 23–28 Read article
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Hardware-Centric Analysis and Optimization of Perturb and Observe Techniques for Maximum Power Point Tracking in Solar Photovoltaic Systems
Abstract: Operating conditions like temperature and irradiance fluctuations can significantly reduce the power output of PV systems, presenting a key challenge. Additionally, contemporary MPPT methods demand high computational resources and face difficulties in maintaining optimal PV array output when weather conditions change quickly. The P&O technique, though widely used, falls short in accurate maximum power point tracking amid sudden shifts in solar insolation due to incorrect adjustments in the duty cycle. …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Hardware-Centric Analysis and Optimization of Perturb and Observe Techniques for Maximum Power Point Tracking in Solar Photovoltaic Systems
Abstract: Operating conditions like temperature and irradiance fluctuations can significantly reduce the power output of PV systems, presenting a key challenge. Additionally, contemporary MPPT methods demand high computational resources and face difficulties in maintaining optimal PV array output when weather conditions change quickly. The P&O technique, though widely used, falls short in accurate maximum power point tracking amid sudden shifts in solar insolation due to incorrect adjustments in the duty cycle. …
Published in International Journal of Electrical Power System and Technology · Vol. 11, Issue 1, 2025 Read article
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Addition of Musa-Pseudo Stem Liquid for Improved Performance in Sandcrete Mixtures Used for Civil Engineering Works
Abstract: The functioning of re-characterized sandcrete mortars is one that is of great concern both to structural and highway engineers; therefore, there has been an enthusiastic need to continuously improve its performance in order to serve the interest of stability and economy. The present research sought was concerned with modification of the property of sandcrete mortar in the fresh and hardened state. The procedure involved addition in varying amounts 5–25% of …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 3, Issue 2, 2017 · pp. 38–48 Read article
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PV Penetrations in Conventional Power System and Generation of Harmonic and Power Quality Issues: A Review
Abstract: The degree of PV penetrations is a critical metric that assesses how well solar energy is integrated into the grid. It offers many advantages, such as lowering greenhouse gas emissions and enhancing grid reliability. It does, however, also bring some difficulties that call for careful preparation and financial outlays. It's obvious that solar energy will be crucial to our shift to a cleaner, more sustainable energy future given the rate …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 9, Issue 2, 2023 · pp. 12–19 Read article
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Liquid-Liquid Extraction Strategies for the Isolation of Bioactive Heterocyclic Compounds
Abstract: Liquid-liquid extraction (LLE) is a widely employed technique for the isolation of bioactive heterocyclic compounds from natural products, fermentation broths, and synthetic mixtures. The efficiency of LLE depends on several factors, including solvent selection, pH manipulation, salting-out effects, and temperature control. Conventional solvent systems, such as water-organic solvent pairs, are commonly used, while advanced strategies, including ionic liquids (ILs), deep eutectic solvents (DESs), ultrasound-assisted extraction (UAE), and microwave-assisted extraction (MAE), …
Published in International Journal of Chemical Separation Technology · Vol. 11, Issue 1, 2025 Read article
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A Review on Hybrid Honeycomb Engine Mounts for Vibration Isolation in Variable Compression Ratio Engines
Abstract: The increasing sophistication of modern engine systems has highlighted the importance of advanced vibration control methods. Engines today are required to function under continuously changing operating conditions, particularly in Variable Compression Ratio (VCR) systems, where vibration behavior becomes highly complex, non-linear, and dependent on time. Under such circumstances, conventional engine mounts often struggle to deliver stable and consistent performance. In contrast, hybrid honeycomb structures offer significant advantages due to their …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 12, Issue 1, 2026 · pp. 29–34 Read article