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2000 articles for “CO” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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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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Determination of the Concentration of Some Selected Metals in Unripe Plantain (Musa paradisiaca)
Abstract: Plantain (Musa paradisiaca) is a food commonly consumed in Nigeria as boiled, roasted, or fried in its ripe and unripe form. Plantains harvested in Ekpoma, a predominately plantain-growing community, were studied for their mineral and sugar composition level of the unripe. Complexometric titration was used to determine the level of calcium and magnesium, flame photometer was used for sodium and potassium determination while zinc, iron, copper, chromium, manganese, and Co …
Published in International Journal of Chemical Engineering and Processing · Vol. 10, Issue 2, 2024 · pp. 1–4 Read article
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Monitoring of the Physicochemical Properties of Some Important Parameters That Induce Metal Corrosion in Water Medium
Abstract: This investigation addresses the effect of freshwater quality on metal corrosion in Choba river located in Obio/Akpo Local Government Area of Rivers State of Nigeria. The research involves the use of four different metal coupons namely Carbon Steel (CBS-D), Mild Steel (MS-B), Stainless Steel (SST-C), and Copper Steel (CPS-A). The different metal coupons were immersed in the freshwater medium and the freshwater medium is contaminated with industrial activities. The rate …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 2, 2024 · pp. 24–36 Read article
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A Simplified Review on Cloud Computing Security Vulnerabilities
Abstract: Cloud computing is the joint source of the computer system resources that are verily configured as well as the high-level services that can be delivered via the internet with minimal effort of the respective administrator. However, these advantages along with the security concerns are also quite prevalent. It is very important for the customers to know the risks and vulnerabilities in cloud services that might exist while considering counter measures …
Published in International Journal of Distributed Computing and Technology · Vol. 10, Issue 2, 2024 · pp. 26–34 Read article
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Exploring Conductive Polymers for Flexible Electronics:Fabrication Techniques and Performance Analysis
Abstract: The advent of conductive polymers has heralded a new era in the development of flexible electronics, offering a unique blend of mechanical flexibility and electronic functionality. This paper explores the various fabrication techniques employed in the production of conductive polymers, with a particular focus on their application in flexible electronic devices. Key methods such as chemical vapor deposition, solution processing, and electrochemical polymerization are reviewed in detail, highlighting their advantages …
Published in International Journal of Polymer Science and Engineering · Vol. 10, Issue 1, 2024 · pp. 22–28 Read article
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Review of Partial Replacement of Cement with Metakaolin and Utilization of M-Sand, Alongside Addition of Steel Fiber, in the Construction Industry
Abstract: In this contemporary context, demands placed on concrete have escalated significantly. Variousessential properties of concrete such as strength, durability, workability, and expected service liferequire enhancement. This work focuses on investigating the strength properties of concrete throughdifferent substitutions of cement with metakaolin (MK), manufactured sand (M-sand), and steel fiber.Tests were conducted in accordance with Bureau of Indian Standards guidelines to assess thesuitability of MK as a cement replacement. Steel fiber was …
Published in International Journal of Construction Engineering and Planning · Vol. 10, Issue 1, 2024 · pp. 26–30 Read article
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Impact of Silica Fume on High-Strength Concrete
Abstract: For many decades, concrete has been the primary material used in construction because of itsreliability under normal conditions. However, certain applications necessitate concrete withexceptionally high compressive strength and durability, particularly in aggressive environments.Consequently, achieving compressive strengths in the range of 60–140 MPa is critical for thesedemanding situations. Silica fume, a by-product of silicon and ferrosilicon smelting processes, hasgained recognition as an effective cementitious material for enhancing concrete properties. Thisdissertation investigates …
Published in International Journal of Concrete Technology · Vol. 10, Issue 1, 2024 · pp. 25–31 Read article
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Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol
Abstract: The Fe 2 (MoO 4 ) 3 /MoO 3 nanocatalysts comprising Fe 2 (MoO 4 ) 3 nanoparticles supported on MoO 3 nanorods were synthesized via two-step solution combustion approach and their catalytic performance for the selective oxidation of methanol were evaluated. The materials have been characterised using electron microscopy, powder X-ray diffraction and Raman spectroscopy. First, MoO 3 nanoparticles were prepared by solution combustion reaction employing ammonium nitrate as …
Published in International Journal of Applied Nanotechnology · Vol. 10, Issue 1, 2024 · pp. 37–47 Read article
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Preparation and Characterization of Double Step StirCusted Aluminum Hybrid Composite Reinforced with RHA and Si3N4 Micron Particles
Abstract: Abstract: The improvement of the mechanical and tribological characteristics of composites is always a crucial area of research for materials scientists. Nowadays, particulate aluminum matrix hybrid composites, known as particle-reinforced hybrid aluminum matrix composites (PHAMCs), are becoming more popular due to their desirable properties, cost-effectiveness, ease of processing, and compatibility withtraditional processing techniques. In this current study, a two-step stir casting method was utilized tocreate aluminum hybrid composites using Al6061 …
Published in International Journal of Manufacturing and Materials Processing · Vol. 10, Issue 1, 2024 Read article
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Northern Contemporary Palaces: A Tool of Promoting Hausa Architectural Identity
Abstract: The origins of buildings started with the origins of human tradition in a society and their peaceful coexistence. Therefore, culture and tradition as a starting point of every human settlement have a potential of architectural identity as well foster significant visual image that embodies physical and symbolic meanings. However, in a communal settlement, architecture usually signified the identity of a place that generate pleasant appearance which in all cases excite …
Published in International Journal of Sustainable Building Technology · Vol. 5, Issue 2, 2022 · pp. 29–45 Read article
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Post Occupancy Evaluation in Monolithic Concrete Buildings
Abstract: Performance of any building is the most important for the occupants residing in the building. The satisfaction level of the occupants, according to their need can be assessed by Post occupancy evaluation process. Post occupancy evaluation process is a systematic and rigorous way of evaluatingbuildings after construction when they are occupied for some times. Many research and publications from the BMTPC have indicated issues related to new building construction technologies. …
Published in International Journal of Sustainable Building Technology · Vol. 6, Issue 1, 2023 · pp. 14–28 Read article
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Construction Project Management
Abstract: Construction project management is the art of directing and managing human and material assets throughout the life of a construction project by using modern construction management techniques to achieve determined objectives of scope, cost, time, and quality. Project management in construction contains a set of objectives which may be accomplished by fulfilling a series of operations subject to resource controls. There are potential conflicts between the stated objectives with regard …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 5, Issue 2, 2019 · pp. 1–6 Read article
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Understanding Flood Resilience in Urban Context-A Case of Chennai City, India
Abstract: In recent times, incessant and torrential rainfall has brought devastating floods to many cities in India which resulted in disastrous effect on the inhabitants and damage to the infrastructure. The massive scale of anthropogenic interventions has contributed to changes in climate extremes, global sea level rise etc. In addition to poor urban planning, constructions of illegal, unregulated substandard informal settlements in low lying areas (prone to flooding) are the main …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 7, Issue 2, 2021 · pp. 32–48 Read article
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Conventional Water Conservation Structure: Case Study of Nagpura Bhairaw Bawli at Durg (Chhattisgarh)
Abstract: Abstract Water is a lifeline of any civilization. Urban development adds impervious surface, which increase surface runoff appreciably and decreases infiltrations and evaporation to maintain the urban water balance. The 80% potable water flow as sewer (goes into the drain). The demand of water is increased 20 times within last 20 years. The global water Use has grown almost three times faster than the population growth rate. The ancient water …
Published in International Journal of Landscape Planning and Architecture · Vol. 1, Issue 2, 2015 · pp. 18–24 Read article
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Construction Safety Management
Abstract: Construction industry is an important part of the economy in many countries and often seen as a driver of economic growth especially in developing countries. Typically, construction industry contributes to 11% of gross domestic products (GDP) in most developing countries. However many construction activities are inherently health and safety risks such as working at height, working underground, working in confined spaces and close proximity to falling materials, handling load manually, …
Published in International Journal of Town Planning and Management · Vol. 5, Issue 1, 2019 · pp. 12–20 Read article
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Protein Determination and Soluble Amino Acids Prediction in Various Solvents Extracted Solutions of Indigenous Red Lentil and Moong Pulse through Direct UV- Visible Spectrophotometer Technique: A Comparative Study
Abstract: In this comparative study, direct protein determination have been done for indigenous Red lentil (Lens culinaris) and Moong pulse (Vigna radiata) (obtained from Muzaffarpur, Bihar) by UV-Visible spectroscopy in three different solvents viz. double distilled water (ddH2O), ethyl alcohol (C2H5OH), and methyl alcohol (CH3OH). A few amino acids in solutions have also been predicted (not characterized) based on their peaks observed in UV-region by comparing them with reported range of …
Published in International Journal of Plant Biotechnology · Vol. 9, Issue 2, 2023 · pp. 42–48 Read article
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Dynamics of Progesterone Concentration and Fertility Response in Postpartum True Anestrus Buffaloes during Breeding and Low Breeding
Abstract: Efficacy of Ovsynch (OVS) and CIDR-Ovsynch (COVS) protocols in the treatment of true anestrous buffaloes and progesterone concentration was studied during breeding and low breeding season in farm and field. The percent conception rate at induced/observed estrus were 41.66(5/12) and 28.57 (4/14) in OVS and COVS group, respectively in farm conditions, while percent second service conception rate was 16.66(2/12) and 14.28(2/14) respectively, whereas percent third service conception rate was 00.00(0/12) …
Published in International Journal of Animal Biotechnology and Applications · Vol. 7, Issue 1, 2021 · pp. 32–38 Read article
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STUDIES ON TALC
Abstract: This article is a review on talc in short form to study elementary schemed fame. Talcum powder is a mixture of talc and other silicates. Powder form of talc has scriptive issued as two types, given by, industrial and cosmetic grades, for usage in paper, plastics, rubber, paint, and cosmetic manufacture. Talc has been soft and commonly used mineral and considered inert, and produces no reaction, when used on skin. …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 7, Issue 2, 2021 · pp. 1–9 Read article
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A Complete Evaluation of the Organic Composition of Sewage Sludge Taken from Some Pumping Stations in Benghazi-Libya
Abstract: Raw sewage sludge samples collected from sixteen wastewater-pumping stations at Benghazi city have undergone complete evaluation of organic composition parameters including pH, Total Volatile Solid (TVS), Total Nitrogen (TN), Total Phosphorus (TP), Total Organic Matter (TOM) and Total Organic Carbon (TOC). The monthly and spatial variations in sludge properties have been described.Keywords: Benghazi city, Raw sewage sludge, Organic Composition.
Published in International Journal of Green Chemistry · Vol. 6, Issue 2, 2020 · pp. 1–8 Read article
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Ayurveda as an alternative Medicine for SARS-CoV
Abstract: The goal of this study was to look at the clinical evidence for complementary and alternative medicine treatments for major depressive disorder. The phrase depressive disorder was combined with St John’s wort, S-adenosylmethionine (SAM-e), exercise, acupuncture, omega-3 fatty acids, and folate in a PubMed search from January 1966 to February 2010. Only relevant human trials were selected. COVID-19, the current global health emergency, is not the first-time coronaviruses have posed …
Published in International Journal of Analytical and Applied Chemistry · Vol. 7, Issue 2, 2021 · pp. 28–36 Read article