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969 articles for “w/c ratio”
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Latex Modified Concrete for Development of Sustainable Architecture
Abstract: To improve the performance of concrete, latex polymer and fly ash are mixed with concrete. This paper presents the effects of using additive material styrene-butadiene rubber (SBR) Latex and Admixture Fly Ash as a partial replacement to cement in mortar mixes. In this research comparison between with or without the replacement of fly ash and polymer is studied for Compressive strength, split tensile strength, flexural strength and ultrasonic pulse velocity …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 2, 2019 · pp. 39–49 Read article
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Flooding of Urban Drainage Systems: Risk Analysis Study
Abstract: Floods are considered as to be among the most severe natural disasters because of their unpredictability, their overwhelming power and the difficulty to assess the related risks. Consequently, flooding damage is inevitable. This paper focuses on the identification of potential flood hazards in urban drainage systems. The flooding causes and modes are analyzed by two main methods: fault tree and event tree. The frequencies of natural events and operational obstacles …
Published in Journal of Water Resource Engineering and Management · Vol. 6, Issue 3, 2019 · pp. 1–5 Read article
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Buckling of Column of Supporting Frame Structure : A Review
Abstract: Column is a vertical strut or structural member which is subjected to an axial compressive load used for supporting purpose. For column, materials like reinforced concrete and mild steel are widely used. Angle section, I-section, channel section, box section are the common type of sections used for column. A form of deformation or sudden sideway failure of column occurs due to high axial compressive force is termed as buckling. When …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 31–40 Read article
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Water Simulation Phenomenon for Porous Asphalt Pavement with Used Local Materials
Abstract: The paper describes the performance of open graded asphalt pavement with benefit of local materials aggregate and asphalt that suitable to use in hot environment. A rainfall simulation phenomenon 1.5 1.0 0.65 m length, width and height respectively, steel box was constructed to develop relationships between the surface runoff and the infiltration volume from a porous asphalt pavement surface. The 5 cm bedding course, 30 cm reservoir course …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 1, 2017 · pp. 36–47 Read article
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Evaluation of Diesel Engine Performance and Emissions Using Algal Biodiesel
Abstract: Algal material has captivated the attention as renewable fuel without imposing any impact on global food markets with high biomass productivity with their ability to convert CO2 to fuel, and wastewater treatment. This work has been carried to use algal biodiesel blends as fuel in a DI (direct injection) diesel engine. The fuel properties of AB10, AB20, AB30 and AB50 along with engine performance (BP and BSFC) and emissions (CO, …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 11, Issue 1, 2020 · pp. 37–43 Read article
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A Review on Parametric Optimization of WEDM Technique for OHNS Steel
Abstract: In this study, the Wire Electrical Discharge Machining (WEDM) process for OHNS (Oil Hardened Non-Shrinking) steel, a high-performance material frequently used in the production of dies, punches, and precision tooling components, is optimized parametrically and validated experimentally. A continuously moving wire electrode and a sequence of electrical discharges are used in WEDM, a non-traditional machining method, to erode material and produce intricate and precise profiles, particularly in materials that are …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 29–35 Read article
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Assessment of Magnitude and Associated Factors of Adverse Birth Outcomes among Deliveries at Suhul Hospital Shire Tigray, Ethiopia from September, 2015 to February, 2016
Abstract: An adverse birth outcome is common phenomena both in developed and underdeveloped countries. Among all these adverse birth outcomes prematurity, low birth weight and stillbirth are the most common cases. Each year, about 15 million babies in the world, more than one in 10 births, are born too prematurely. More than 7% of those babies die shortly after birth; countless others suffer from lifelong physical, neurological, or educational disabilities, often …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 6, Issue 1, 2017 · pp. 1–10 Read article
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An Approach of Likelihood Ratio Score Fusion for Appearance and Shape based Face Recognition
Abstract: AbstractThis paper deals with an approach of likelihood ratio based score fusion technique where appearance and shape based facial features have been used to enhance the efficiency of existing face recognition system. Active Shape Model (ASM) has been used to extract the appearance and shape based facial features. Two different types of features have been used in this work in such a way that when the appearance based feature contains …
Published in Journal of Computer Technology & Applications · Vol. 4, Issue 3, 2013 · pp. 1–8 Read article
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Intercropping Legumes Covers with Maize on Soil Moisture Improvement in Selected Dry Land Areas of Basketo Special Woreda’s, Ethiopia
Abstract: In order to increase land productivity, intercropping offers enough flexibility to grow two or more crops at the same time on the same plot of land. The advantages of intercropping systems have not been thoroughly investigated and are supported by available experimental data. The purpose of this study was to assess how intercropping affects soil moisture conservation in places under moisture stress, which affects land productivity. In this study, experimental …
Published in Research and Reviews : Journal of Crop science and Technology · Vol. 13, Issue 3, 2024 · pp. 09–18 Read article
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Performance, Emission, and Combustion Evaluation of Chlorella Vulgaris Biodiesel-Diesel Blends in a Compression Ignition Engine
Abstract: This study examines, without modifying the engine, the performance, emissions, and combustion properties of biodiesel blends made from Chlorella vulgaris microalgae in a four-stroke, single-cylinder, water-cooled CI engine. The blends of biodiesel and diesel, designated B10, B20, B30, and B40, were 10%, 20%, 30%, and 40%, respectively. Of these, B20 showed the best efficiency-to-emissions ratio. Although it recorded the lowest brake specific fuel consumption of 0.232 kg/kWh, indicating superior fuel …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 339–354 Read article
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Enhanced Sustainable Concrete Mix Design Using LLMs and Advanced Machine Learning Techniques
Abstract: Large Language Models (LLMs) are emerging as transformative tools in materials science, offering human-like reasoning, zero-shot problem solving, and the ability to integrate fuzzy laboratory knowledge with structured data. This study extends and reinterprets the original systematic benchmark for using LLMs in sustainable concrete design, particularly for Alkali-Activated Concrete (AAC). We introduce an enhanced, multi-model framework combining LLM-based inverse design, Random Forest regression, Gaussian Process Regression (GPR), and a lightweight …
Published in Recent Trends in Civil Engineering & Technology · Vol. 16, Issue 2, 2026 · pp. 26–33 Read article
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Virtual Tooling Development and Tooling Cost Estimation for Sand Casting
Abstract: Casting is a major manufacturing process. It requires an understanding of a wide range of geometrical, material and process parameters. For producing cost effective casting, in today's market of intense competition, where the need of the hour is to develop quality products at low cost and short lead time, innovative and cost effective designs are the means to success. Early cost estimation, necessary for design-to-cost philosophy, serves as a decision …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 59–66 Read article
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Multi Objective Optimization in Micromilling of 304L steel by Taguchi-Grey-Fuzzy Method: Literature Review
Abstract: Micromechanical milling of 304L Stainless steel which is commonly used in the welded in severe corrosion environment and it terminates the need for annealing. The goal of this study is to investigate the influence of process input parameter such as cutting speed, depth of cut, feed per tooth, radial immersion percentage and plunging method on process output during circular pocketing operations. Tool wear, machining forces and surface roughness measurement are …
Published in Trends in Mechanical Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 25–30 Read article
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Some Investigations with Ultra High Speed Low Power All Optical digital Logic Gates
Abstract: AbstractThis paper illustrates design for an all-optical optical inverter and universal digital logic NAND gate using NRZ format, realized by MZI structure. Miscellaneous evaluations have been done to examine the designs performance in terms of their generated output waveforms. Simulations have been done for significant design parameters as chirp factor, laser power and bit error rate at different data-rates. Optical Logical gate outputs have been verified. It showed good design …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 3, 2018 · pp. 17–30 Read article
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PAPR Reduction using Selective Mapping Method for OFDM Communication Systems
Abstract: AbstractSelective mapping method (SLM) is one of the most important techniques used for peak-to-average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) communication system. It is simple in implementation, gives distortionless transmission and reduces PAPR significantly. Mathematical modelling and Matlab simulation have been carried out to analyse its performances. At of CCDF, PAPR values for OFDM signal without applying any reduction technique is 11.5, 11.8, 12.1, 12.4 and …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 50–57 Read article
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Experimental testing of spring for absorption of sudden impact on spring (Transmissibility)
Abstract: Shock absorber is used to sustain & absorb the shock & jerk during working / running condition of machine / Vehicle. This test rig is used to study performance of shock absorber at different operating speeds. This paper presents systematic Experimental investigations increasing dynamic load suspension system (coil spring). One of the major differences of this study from previous work is that it includes parametric sensitivity analysis in order to …
Published in Trends in Mechanical Engineering & Technology · Vol. 8, Issue 3, 2018 · pp. 28–32 Read article
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Geopolymer Concrete with Cenosphere as Fine Aggregate: A Material Characterisation
Abstract: Geopolymer concrete (GPC) is regarded as the successor to traditional concrete as it eliminates the requirement for conventional Portland cement during its manufacturing process, hence decreasing CO2 emissions. This study employed Cenosphere, which are lightweight fine materials, to partially substitute the volume of sand in GPC. Cenosphere was utilized in proportions of 20%, 40%, 60%, and 100%. This experiment examined the fresh and hardened characteristics, durability against freezing and thawing, …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 143–151 Read article
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Nanotechnology-Enabled Biosensors for Early Disease Diagnosis and Personalized Healthcare Monitoring
Abstract: Nanotechnology has revolutionized the field of biosensors, enabling early disease diagnosis and personalized healthcare monitoring. Utilising the special qualities of nanomaterials—such as their high surface-to-volume ratio, remarkable electrical and optical capabilities, and customised surface chemistry—nanotechnology-enabled biosensors create extremely sensitive and focused diagnostic instruments. With previously unheard-of sensitivity and accuracy, these biosensors are able to identify and measure a wide range of biomarkers, such as proteins, nucleic acids, and tiny molecules. …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 26, Issue 1, 2024 · pp. 1–15 Read article
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Strength of Geopolymer Concrete by Replacement of Fine Aggregate with Waste Steel Slag
Abstract: AbstractThe increased production of Portland cement causes great concern to environment because of its high carbon foot print. Geopolymer concrete is a new invention in the world of concrete in which cement is totally replaced by industrial waste and byproducts like fly ash. Geopolymer concrete is environment-friendly material for construction because of its reduced carbon foot print and also it is found to be durable. In this study, strength and …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 1, 2014 · pp. 15–19 Read article
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Optimizing Machining Parameters for Surface Roughness and Metal Removal Rate While Turning of Aluminium Based Metal matrix Composite
Abstract: Nowadays demand of lightweight materials is increasing tremendously and aluminum based metal matrix composite (MMC) plays important role to fulfill such demands due to characteristics like lightweight and high strength. This work is intended to investigate the effect of the variables like speed, feed and depth of cut, on surface roughness and MRR. This work is carried out on Aluminum based MMC with 10% of boron carbide (B4C). Taguchi’s L27 …
Published in Journal of Mechatronics and Automation · Vol. 6, Issue 3, 2019 · pp. 42–48 Read article