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1972 articles for “investigations” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Vector-Borne Disease Risk Assessment Among Households: A Cross-Sectional Epidemiological Investigation
Abstract: The study was conducted to assess the risk of vector-borne diseases among households of the selected ward of Athirampuzha Panchayath, Kottayam. Objectives of the study were to assess the percentage of houses infested with larvae or pupae of mosquito (house index (HI): total number of positive houses/total houses × 100), to identify the percentage of water holding containers infested with larvae or pupae of mosquito (container index (CI): total number …
Published in International Journal of Evidence Based Nursing And Practices · Vol. 4, Issue 1, 2026 · pp. 15–18 Read article
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Low-Weight, High-Durability Crankshaft Development Using Glass Fiber Composites: Numerical and Experimental Investigations
Abstract: The present paper aims towards the weight reduction of crankshaft by replacing conventional medium carbon steel for a two-wheeler with composite material. The replacement is such that it significantly reduces load on other components without compromising structural integrity. It will also serves in terms of operating reliability or durability over its life span. A geometric specifications and dimensions were obtained using a 3D CAD model developed in CATIA V5. The …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 310–325 Read article
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Comparative Investigation on Mechanical Properties of AMCs Fabricated through Liquid and Solid-State Fabrication Process
Abstract: This current research work is primarily focused on comparative experimental study on effect of two distinct fabrication process routes i.e. liquid state and solid state process and their corresponding parameters on microstructure and micro-hardness properties of Aluminium matrix composites (AMCs). In this work, AMCs were fabricated by reinforcing Al2O3 powder materials of 5, 10 and 15 wt.% into pure Aluminum (Al) matrix phase through two distinct processes; liquid state (stir …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 202–215 Read article
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A Factorial Investigation of Hyperparameter Tuning Strategies for Lasso- Based Genomic Prediction
Abstract: In an earlier comparative study of machine-learning methods for genomic prediction of wheat grain yield, we reported a counter-intuitive result: automated nested-cross-validation tuning of the Lasso regularization penalty reduced mean predictive ability relative to a fixed, arbitrarily chosen penalty (mean Pearson r falling from 0.408 to 0.349 across four environments), the opposite of the expected effect of hyperparameter tuning. We hypothesized two possible explanations at the time — high-variance penalty …
Published in Research and Reviews : Journal of Computational Biology · Vol. 15, Issue 2, 2026 · pp. 42–51 Read article
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An Investigation on Influence of Gamma-Irradiation and Doping on Chemical Structures and Optical Properties of Conducting Polypyrrole
Abstract: In this study, the authors report on effect of gamma-irradiation and doping (bromine, iodine and sulfate ion) on chemical structure and optical, electronic properties of polypyrrole. Optical absorption spectrum of PPY shown absorption bands centered around 36.2.5 nm (peak 1), 450 nm (peak 2) and 525 nm (peak 3) positions. Gamma irradiation resulted in broadening of peak A together with a band shift of 45–525 nm and disappearance peaks 2 …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 48–57 Read article
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A Comprehensive Investigation of Bagging-Based Ensemble Methods for Improving Machine Learning Model Robustness
Abstract: Machine learning models such as Decision Trees, Logistic Regression, and K-Nearest Neighbors are widely used for classification tasks due to their simplicity and interpretability. However, these models often suffer from high variance, overfitting, and poor generalization when applied to real-world datasets, particularly those that are small, noisy, or imbalanced, as commonly encountered in healthcare, finance, and cybersecurity applications. To address these limitations, this research proposes a Bagging (Bootstrap Aggregating)-based ensemble …
Published in Recent Trends in Mathematics · Vol. 3, Issue 2, 2026 · pp. 24–34 Read article
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An Experimental Investigation towards Optimizing the Geometry and Material of Vortex Tube
Abstract: The main interest of this study is to know the effect of tube material having different thermal conductivities, on the performance of the vortex tube energy separation. Also, the study evaluates the optimal tube length to diameter ratio (L/D) and the effect of inlet pressure on the performance of the vortex. Experimentation consists of three different tube materials, Acrylic, Aluminium and Copper. By maintaining the tube diameter 20 mm as …
Published in Journal of Thermal Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 1–9 Read article
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Investigation of Surface Electromyography Signal for an Upper Limb Amputee
Abstract: Surface electromyography (SEMG) is a method to measure the muscle activity of the skin. Sensors placed on the skin detect the electrical current or signal generated by active muscles. Lot of the research has focuses on the detection of signal from upper limb amputee with activity of triceps and biceps muscles. Our main aim of this study is to process the acquired signal from the different muscles of the shoulder …
Published in Current Trends in Signal Processing · Vol. 7, Issue 1, 2017 · pp. 19–28 Read article
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Experimental Investigations on the Durability of PMMA Microfluidic Devices Fabricated by Hot Embossing Lithography with Plasma Processing for Bioengineering Applications
Abstract: In this research paper, total 1290 individual static contact angles of different working liquids have been measured and recorded on the flat polymethylmethacrylate (PMMA) surfaces. Total 474 individual PMMA microfluidic devices have been fabricated by the maskless lithography, hot embossing lithography and direct bonding technique inside the cleanroom laboratory and mechanical engineering workshop to determine the durability of these microfluidic devices. Total nine individual working liquids have been used to …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 3, 2016 · pp. 1–18 Read article
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Investigation of Characteristics of Vernonia amygdalina Stem on Remediation of Crude Oil Polluted Loamy Soil Environment
Abstract: The effectiveness of Vernonia amygdalina in Total Petroleum Hydrocarbon (TPH) mitigation in a loamy soil environment was monitored using mixture of 100ml of Crude oil, 2kg of loamy soil and 25g to 100g of remediant determined. The experiment was set-up based on the design concept considered as presented in this research, which involved constant volume of 100ml of crude oil, constant mass of 2kg of loamy and changes in mass …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 2, 2023 · pp. 23–30 Read article
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Experimental Investigation of Single Cylinder Four Stroke Diesel Engine Using Mahua Oil Biodiesel
Abstract: With increase in population and subsequent use of automobiles, the present day scenario has compelled us to face dual problems of fossil fuel depletion and environmental degradation simultaneously. To overcome this, we must search for a better renewable fuel. Since, biodiesel stands as a renewable and sustainable alternative fuel, several studies are carried out to study its effects on engine performance as well as exhaust gas emissions. The studies proved …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 1–7 Read article
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Experimental Investigation on 4-Stroke Diesel Engine Using Waste Cooking Oil Biodiesel Fuel
Abstract: Due to using of fossil fuels, the world today is faced with serious environmental pollution. However, these fuels are limited and depleting day by day as the consumption is increasing very rapidly. Hence, it is necessary to find out a clean alternative fuel produced from renewable sources. Biodiesel production and applications are gaining popularity in recent times due to diminishing petroleum reserves and detrimental environmental impacts. Edible and non-edible oils …
Published in Journal of Automobile Engineering and Applications · Vol. 2, Issue 2, 2015 · pp. 19–28 Read article
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Comprehensive Analysis of Electric Scooters: Investigating Challenges, Failures And Component Optimization for Enhanced Urban Mobility.
Abstract: Renewable energy, a global topic of discussion, has made significant strides in preserving our ecosystem. Environmental pollution stands as a critical issue, necessitating proactive measures for mitigation. The emergence of electric scooters represents a positive step towards environmental conservation; however, their acceptance as urban mobility vehicles is hindered by safety apprehensions. This research delves into e-scooter design, aiming to enhance productivity and address challenges. By identifying accidents and operational failures, …
Published in Journal of Automobile Engineering and Applications · Vol. 10, Issue 1, 2023 · pp. 45–60 Read article
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Experimental Investigation on Soil Stabilization with Demolished Concrete
Abstract: Soil serves as engineering media for the construction and preserve or destroy artifacts of human endeavors. This step of construction process bears such a great importance because it can cause foundation failure due to the insufficient bearing capacity of the soil. Stabilizing of soil in an economical way is complicated task,by this project we are going to increase the soil strength for the foundation by adding demolished concrete. As demolished …
Published in Journal of Catalyst & Catalysis · Vol. 5, Issue 2, 2018 · pp. 22–25 Read article
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Thermodynamic, Kinetic and Mechanistic Investigations of Ruthenium(III) Catalyzed Methylparaben Oxidation by Diperiodatocuprate(III) in Aqueous Alkaline Medium
Abstract: The kinetics of ruthenium(III) catalyzed degradative oxidation of methylparaben by the copper complex, diperiodatocuprate(III) in alkaline medium is studied at 25ºC and at a ionic strength of 8.0 × 10−2 mol dm−3. In the presence of catalyst ruthenium(III), the reaction between methylparaben and diperiodatocuprate(III) in aqueous alkaline medium exhibits 1:1 stoichiometry. The oxidation products were identified by UV-visible, GC-MS and IR spectroscopy. The reaction exhibited unit order in case of …
Published in Journal of Catalyst & Catalysis · Vol. 2, Issue 1, 2015 · pp. 4–17 Read article
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Experimental Investigation on the Strength of Concrete with Partial Replacement of Cement using GGBS and Alccofine
Abstract: Cement is the most important ingredient of concrete. A large scale production of cement consumes large amount of energy and produce a large amount of carbon dioxide (CO2) gas which harmful to human as well as environmental and natural resources. So, to avoid the effect to use industrial waste productions as a supplementary cementitious material (SCM) in making concrete i.e. silica fumes, rice husk ash, fly ash, metakaolin, alccofine, ground …
Published in Journal of Construction Engineering, Technology & Management · Vol. 13, Issue 1, 2023 · pp. 35–43 Read article
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Experimental Investigation on Hybrid Laminated Composites Reinforced with Basalt-Pineapple-Bamboo Fibers
Abstract: In the majority of technological applications, particularly in automotive and building materials, natural fibre-reinforced composites are now more common. Natural fibre developments have seen a tremendous rise in demand recently. As a filler material, Snail Shell Powder was utilized in the current work to evaluate the mechanical and thermal characteristics of hybrid reinforced composites constructed from natural fibres such as basalt, pineapple, and bamboo. Snail shell powder weighed six grams …
Published in Journal of Construction Engineering, Technology & Management · Vol. 13, Issue 3, 2023 · pp. 9–15 Read article
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Performance Investigation on Boost Converter with Non-Isolated Coupled Inductor Using PSO-DFFP Controller with Stand-Alone PV System
Abstract: The stand-alone PV system with a Partial Swarm Optimization with Distinctive Feed Forward Propagation (PSO-DFFP) controller based Boost converter is designed with coupled inductor has been simulated. The steady state / dynamic performance of the proposed system have been analyzed using MATLAB simulation. The proposed controller has been developed to decrease ripple and improve the efficiency of the system. However, the linear controllers are influenced by the system parameters of …
Published in Journal of Control & Instrumentation · Vol. 13, Issue 1, 2022 · pp. 32–49 Read article
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EXPERIMENTAL INVESTIGATION OF WELDING PROCESS PARAMETERS ON MECHANICAL PROPERTIES FOR TIG WELDED AUSTENITIC STAINLESS STELL 304 JOINTS
Abstract: Minimally invasive surgeries are the most elusive, yet highly demanded subset of surgeries which requires precise knowledge of the pertinent patient. Compared to conventional surgeries, minimally invasive surgeries are characterized by less pain, low risk of infection, lesser scarring, etc. In the status quo, doctors use intuition through experience to determine the parameters for surgery such as the force required to cut, size of cut, depth of cut, etc. With …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 2, 2018 · pp. 6–9 Read article
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Experimental investigations on mechanical properties of AL8081 reinforced with B4C particulate Mmc’s
Abstract: The aluminium metal matrix composites are becoming emerging and most versatile material. Aluminium MMCs are widely used since the applications involved in automotive, unique structural, defence and aerospace. At the elevated temperature levels, the potentiality of Aluminium MMCs is very high. The metal matrix composites (MMCs) mainly mitigate the weight ratio. In this article, the aluminium metal is conjugated with B4C particulates by stir casting approach. The stir casting method …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 2, 2019 · pp. 12–16 Read article