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221 articles for “parameters optimization”
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Microbial Production of Lipase Enzyme Using StrainCandida tropicalis and Its Application inBioscouring and Biodiesel
Abstract: The growing interest in lipase production is driven by the potential biotechnological applications. In present study lipase producing enzyme using strain Candida tropicalis isolates by using tributyrin agar plate method and confirmation on sprit blue agar which showed the positive result via a zone of hydrolysis. lipase enzyme was carried out by SSF and SMF showing more effective production SSF (25.97 ± 0.47 U/ml/min) as compared to SMF (10.27 ± …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 12, Issue 2, 2026 · pp. 1–21 Read article
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FEA Analysis on Motor Support Assembly of Window Air Conditioner
Abstract: The objective of this paper is to analyze and optimize the motor support assembly of the window air conditioner. The redesigned motor support assembly is the combination of multiple parts of the existing product. In the motor support assembly, motor support base part is optimized to reduce the weight of the component with maximum stiffness for the applied loads and constraints. The CAD model of motor support assembly is performed …
Published in International Journal of Manufacturing and Materials Processing · Vol. 5, Issue 1, 2019 · pp. 49–56 Read article
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Synthesis and Characterization of Quinacridone Violet (Pigment Violet 19): Process Optimization and Colorimetric Evaluation
Abstract: Objective: This study focuses on the synthesis and characterization of Quinacridone Violet (Pigment Violet 19), a high-performance organic pigment known for excellent lightfastness and durability. The research aims to optimize the manufacturing process and evaluate the colorimetric properties of the synthesized pigment. Methods: PV 19 was synthesized via a multi-step process involving condensation, oxidation/hydrolysis, and ring closure/cyclization reactions. Two experimental batches (MM#973-A1/B1 and MM#974-A1/B1) were prepared with varying mole ratios …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 1, 2026 · pp. 41–51 Read article
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Electrodeposition of Bright Zn–Co–Fe Alloy Coatings on Mild Steel and Their Characterization
Abstract: Sulphate bath having ZnSO4. 7H2O, CoSO4. 7H2O, FeSO4.7H2O and thiamine hydrochloride (THC) and citric acid (CA) in combination, was optimized for deposition of bright Zn–Co–Fe alloy coating on mild steel. Bath constituents and operating parameters were optimized by Hull cell method, for highest corrosion performance against coating. The effect of current density on deposit characters viz., corrosion resistance, hardness, thickness, CCE were evaluated. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) …
Published in International Journal of Analytical and Applied Chemistry · Vol. 2, Issue 2, 2016 · pp. 17–25 Read article
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Experimental Investigation of the Influence of Coarse Aggregate Size and their Proportioning on the M30 Concrete for CC Pavement
Abstract: Abstract The nominal maximum size (NMS) and proportion of coarse aggregates significantly influence the mechanical properties and performance of cement concrete pavements. While extensive research has focused on concrete mix design, the combined effect of coarse aggregate size and aggregate proportioning on the compressive strength of pavement-grade concrete remains inadequately understood. This study experimentally investigates the influence of coarse aggregate characteristics on the compressive strength of M30 grade concrete. Two …
Published in International Journal of Concrete Technology · Vol. 12, Issue 2, 2026 · pp. 13–23 Read article
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Experimental Investigation of Jatropha, Karanja, Mahua and Polanga oils based biodiesel using Analysis of Variance
Abstract: The paper focused on application of ANOVA in predicting statistical model of four non-edible oils based biodiesel using design expert 6.0.8 tool. The response surface methodology using Central composite rotatable design is applied to design the experiments and the biodiesel yield of Jatropha, Karanja, Mahua, Polanga oils is to be measured. The optimum process parameters for biodiesel yield are predicted through desirability approach. It has been observed that a design …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 9, Issue 1, 2023 · pp. 1–8 Read article
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Optimal Tuning of PID Controller for a Continuous Stirred Tank Reactor (CSTR) Using Ant Colony Optimization
Abstract: Ant colony optimization (ACO)-based proportional integral derivative (PID) controller has been proposed for tuning optimized PID parameters in a continuous-stirred tank reactor (CSTR) process. In our proposed work, we have found that the tuning should have minimum value for rise time, peak time, settling time, etc. to be effective to design a CSTR system by optimal PID tuning. The simulation results of the proposed work reveal that the ACO-based PID …
Published in International Journal of Electrical Power System and Technology · Vol. 4, Issue 2, 2018 · pp. 32–38 Read article
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Characterization of AL-2014 TIG Welded Joints
Abstract: Abstract – This experimental study presents a comprehensive investigation into the tensile strength of TIG-welded butt joints made from Al-2014 alloy, a material that find applications in aerospace and structural engineering due to its excellent machinability and high strength to weight ratio. Welding Al-2014 alloy is challenging because it is more prone to hot cracking, oxide layer formation and thermal distortion. Therefore, it is very important to optimize welding parameters …
Published in International Journal of Manufacturing and Materials Processing · Vol. 12, Issue 1, 2026 · pp. 25–31 Read article
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Design of Multispindle Drilling Head
Abstract: AbstractThis paper presents the design, analysis, and optimization of a multi-spindle drilling machine headaimed at enhancing productivity and efficiency in manufacturing processes. Engineered to drill multipleholes simultaneously, the multi-spindle head significantly reduces machining time and increasesoperational throughput, making it ideal for high-volume production environments where speed andaccuracy are essential. The design process begins with a thorough requirements analysis and materialselection to ensure the machine head can endure operational stresses while …
Published in International Journal of Manufacturing and Materials Processing · Vol. 10, Issue 2, 2024 · pp. 36–42 Read article
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Design of Experiments for Vibration Monitoring of Rotating Machinery
Abstract: The valuable resources are rotating technology. In industrial applications, several machines are essential to the effective operation of any system. This article describes the engineering process for developing designs for analyzing variation and the optimization of condition monitoring by the impacts of vibration parameters using Taguchi processes to improve the quality of manufactured items. Crucial spinning equipment is included in the experiment to maximize the vibration frequency reactivity. Using Minitab …
Published in International Journal of Mechanics and Design · Vol. 11, Issue 1, 2025 · pp. 27–41 Read article
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Enhance the Process Parameters for Material Removal Rate (MRR) Assessment in Turning Operations with HSS Cutting Tools
Abstract: AbstractThe experimental investigation of turning on EN8 steel of grade SAE (AISI) 1040 using HSS cutting tools was the focus of this work. The following study’s main goal was to apply the Taguchi method to ascertain how the machining parameters – feed, depth of cut, and cutting speed – affect the rate at which material is removed from the machined material. Finding the ideal machining parameters to optimize the material …
Published in International Journal of Computer Aided Manufacturing · Vol. 11, Issue 1, 2025 · pp. 16–23 Read article
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Identification of significant parameters for the production of Jatropha biodiesel using preliminary experimentation
Abstract: The current research work is on Jatropha biodiesel for finding the significant parameters in optimum biodiesel yield. The one factor at a time approach is applied in the esterification. The trans-esterification reaction is used by mixing of Jatropha oil and ethanol in the presence of catalyst KOH. After some time two products are formed a Jatropha biodiesel and a glycerin. The density of glycerin is more as compared to biodiesel. …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 9, Issue 1, 2023 · pp. 1–7 Read article
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Sustainable Cementitious Composites withEpoxy–Alccofine Synergy
Abstract: This research examines the combined influence of epoxy resin and Alccofine when used as partial substitutes for cement in producing sustainable, high-performance concrete. The study aims to improve both strength and durability properties while simultaneously reducing cement usage and its environmental impact. Concrete mixes were prepared with epoxy resin contents of 0%, 5%, and 10% by weight of cement, along with Alccofine replacement levels of 5%, 10%, and 15%. The …
Published in International Journal of Concrete Technology · Vol. 12, Issue 2, 2026 · pp. 1–12 Read article
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Comprehensive Review of Membrane Fouling Control Mechanisms
Abstract: One of the biggest problems with membrane-based separation procedures is membrane fouling. As particles, organic matter, microbes, and other materials build up on the membrane’s surface or inside its pores, the effectiveness of membranes – such as those used in reverse osmosis, ultrafiltration, and microfiltration – declines over time. The effectiveness and longevity of the membrane are eventually lowered because of this fouling, which causes a drop in flux and …
Published in International Journal of Polymer Science and Engineering · Vol. 11, Issue 2, 2025 · pp. 1–9 Read article
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Experimental Study of Mechanical Properties Geopolymer Concrete.
Abstract: This experimental study aimed to define the parameters for optimum mix design of geopolymer concrete made by partial replacement of cement. The geopolymer concrete is nothing but the formation of fly ash and alkali activators. Fly ash is the waste product from the thermal power station and may use as the pozzolanic material. But, only fly ash is may not the only replacement for the cement, for the more binding …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 16–22 Read article
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Study of Liquid Rubber Printing on a 3D Printer by Using a Peristaltic Pump
Abstract: The additive manufacturing (AM) process known as direct-ink writing (DIW), also known as direct-print (DP) or direct-write (DW), has great practicality in a variety of material types. In this process, it is essential for the ink formulation utilized for the DIW process to be a paste-type ink with a time-dependent shear-thinning property. Rubber has been utilized in a variety of applications however, the high pressure and temperature needed to treat …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 2, 2022 · pp. 34–44 Read article
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Effect of Various Parameters on Engine Performance and Emissions for a Single Cylinder VCR Diesel Engine
Abstract: Diesel Engines are playing crucial role in field of automobile in current scenario. In Present world there are so many research works are going on in the field of renewable energy sources to replace conventional sources. Variable Compression Ratio (VCR) Engine provides facility to change engine parameters to optimize the power output and the emissions. From experimental Investigation it is clear that the better performance is obtained at 18.5 CR …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 1, Issue 2, 2015 · pp. 26–31 Read article
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Analysis and optimization of exergy losses in a heavy water distillation column
Abstract: Heavy water (D2O) of isotopic purity 99.9% and more is used as the moderator and the coolant in pressurized heavy water nuclear reactors (PHWRs). This purity is maintained by vacuum distillation. In the column there are various sources of irreversibility and thermodynamic inefficiency. This work presents an analysis of these losses in a typical heavy water distillation column and their dependence on various design and operating parameters of the column. …
Published in International Journal of Chemical Engineering and Processing · Vol. 4, Issue 2, 2018 · pp. 1–22 Read article
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Optimization of Dynamic Load Carrying Capacity of Tapered Roller Bearing Using Advanced Optimization Technique
Abstract: In the design of tapered roller bearings, long life is the one of the most important criterion. Roller bearings are used mostly in mechanical equipment due to its low friction capability. Tapered roller bearing is selected and the objective function is to maximize dynamic load capacity. Design variables for the bearing include four geometrical parameters: the bearing pitch diameter, the diameter of the roller, the effective length of the roller, …
Published in International Journal of Analog Integrated Circuits · Vol. 4, Issue 2, 2018 · pp. 23–42 Read article
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Studies on Extraction, Modelling and Purification of Quercetin from Peel of Allium cepa
Abstract: ABSTRACT Quercetin is an anti-oxidant, which very efficiently scavenges highly reactive biological species such as peroxynitrite and hydroxyl radical. Quercetin belongs to the flavonoid’s family. The present studies on optimization of physico-chemical parameters like effects of different solvents, different solvent percentages, particle size, pH and extraction time for the extraction of quercetin was studied. The highest quercetin concentration for optimized conditions was 38 µg/ml. In the soxhlet extraction process, the …
Published in International Journal of Plant Biotechnology · Vol. 4, Issue 1, 2018 · pp. 3–11 Read article