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127 articles for “factorial study”
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Statistical Optimization of the Medium for the Production of α-Amylase by the Mutant Aspergillus flavus MS-12 Using Response Surface Methodology
Abstract: Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} The present study is concerned with the improvement of Aspergillus flavus S-12 for α-amylase production. The mutant’s ability to produce α-amylase increased 1.24 times after …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 1, Issue 3, 2011 · pp. 13–23 Read article
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The Patterns of Enamel Rod after Exposure to Probiotic Beverages
Abstract: Probiotic beverages have a taste of acid that is produced by fermentation of probiotic bacteria. The acid condition can affect the structure of tooth enamel. The structure of tooth enamel is formatted by enamel prism that is composed by hydroxyapatite (HA) crystals. According to several studies, HA has a critical pH <5.5 and can be changed in 180 min by acid. The objective of the study is to describe enamel …
Published in Research and Reviews: A Journal of Dentistry · Vol. 3, Issue 2, 2012 · pp. 28–36 Read article
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Evaluation and Analysis of Fire load in Storage Facility of Manufacturing Industry
Abstract: In recent years, industrial and residential fire is drawing more and more concerns. According to official government data, there have been numerous fire accidents in the industrial sector, leading to both casualties and significant property damage. Of particular concern are certain buildings in the pharmaceutical industry where large quantities of highly flammable and toxic substances are stored in confined spaces. This paper aims to examine the amount of flammable and …
Published in Journal of Industrial Safety Engineering · Vol. 10, Issue 2, 2023 · pp. 1–7 Read article
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Review on Fatigue Behavior of Nut and Bolt
Abstract: This articles is study about the characterization of nut and bolt. Design standards and reticulated scripture have associated herewith after factory acceptance test (FAT) classes. Henceforth bolt and nut script has protocoled from accessible region merged fame from three multi-international continental design standards. These are the American Bridge Design Specifications AASHTO: 2012, the European Standard EN 1993-1-9:2005 and British Standard BS 7608:2014. Frequent applicability of bolted connection has scriptive issued …
Published in Trends in Machine design · Vol. 8, Issue 2, 2021 · pp. 21–29 Read article
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Design and Assessment of Fixed Dose Combination Containing Fenofibrate and Pravastatin Sodium in Tablet Formulation: A Bioinformatics Approach
Abstract: The aim of this is study is to formulate and evaluate fixed dose combination of Fenofibrate and Pravastatin sodium in tablet dosage for the treatment of Dyslipidemia. For the formulation and optimization of fenofibrate layer, two factor three level factorial design was used as experimental design for optimization with a minimum of nine run. All the nine trial (F1–F9) has been formulated according to the experimental design by wet granulation …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 11, Issue 1, 2024 · pp. 1–20 Read article
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Fabrication of Citric Acid Using Molasses by Aspergillus niger
Abstract: Citric acid is an organic acid with abundant industrial bid. It is lengthily used in the food and beverage industry as it combines an enjoyable taste with low toxicity and sugariness. It was prepared from disparate materials like from molasses and other similar material. Whereas, some of the molasses is used for making of ethanol. But the leftover has been exported to overseas. This paper is studied, the utilization of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 11, Issue 1, 2020 · pp. 37–38 Read article
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Multi Objective Optimization in Turning Parameters of Al 6463 using Principal Component Analysis
Abstract: AbstractIn multi objective optimization, weight criterion of each objective is important for producing better and accurate solutions. Now a day, due to the growing requirement of the higher precision apparatus for its useful aspect, machining time (MT) and material removal rate (MRR) of a machined part plays a significant role in the modern manufacturing process. This study focuses on optimizing CNC turning parameters on Al 6463 based on principal component …
Published in Journal of Materials & Metallurgical Engineering · Vol. 7, Issue 2, 2017 · pp. 6–15 Read article
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Dimensional Investigation of Material Extrusion Based AM Part
Abstract: Now a day’s additive manufacturing plays a vital role in industrial application. Material Extrusion based 3D printed parts often face inherent limitations in quality, such as geometric inaccuracies, surface roughness, and reduced strength, especially when compared to those made through traditional or more refined manufacturing methods. However, this system provides notable advantages for producing parts from materials like ABS by optimizing critical material extrusion based AM machine process parameters, such …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 442–452 Read article
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Investigating the Influence of Process Parameters on Photochemical Machining of Phosphor Bronze Alloy Microchannels
Abstract: Microchannels are widely employed in microfluidic devices, biomedical systems, and compact heat exchangers, where their functional efficiency depends strongly on surface finish, dimensional control, and edge quality. Traditional machining techniques often face limitations in producing such features with the required precision, prompting the use of advanced micromachining methods. In the present work, photochemical machining (PCM) has been applied to fabricate serpentine-shaped microchannels in phosphor bronze. The study systematically investigates the …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 837–846 Read article
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The effect of cooling time and colorant pigment on the dimensional accuracy of plastic injection molded closure
Abstract: Dimensional accuracy is a critical aspect of precision injection molding, with the products generally required to conform to set tolerances. Major causes of these deviations are reported to be related to the polymer material, part geometry, injection mold design, and process parameters. This study investigated the effects of material color pigment and its interaction with process cooling time on product dimensional accuracy. This study was conducted experimentally, where three levels …
Published in Journal of Polymer & Composites · Vol. 11, Issue 12, 2023 · pp. 93–100 Read article
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Assessing the status of soil seed bank in Parthenium hysterophorus invaded land use types and its social aspects in Lower Hare Watershed, Southern Ethiopia
Abstract: This study aimed to assess soil seed bank of Parthenium hysterophorus under major land usetypes and assess community perception towards the effects of P. hysterophorus on socialaspects in lower Hare watershed. For this study, 210 soil samples were collected from fifteentransect lines in grassland, cropland, and forestland use types. Statistical analysis using threeways factorial ANOVA was used to analyze the difference in density of P. hysterophorusamong various land uses soil …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 12, Issue 2, 2023 · pp. 43–57 Read article
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Effects of seed and nitrogen with phosphorus fertilizer rates on production of lowland rice (Oryza sativa L.) in Fogera plain, North Western Ethiopia.
Abstract: Rice (Oryza sativa L.) is the main cereal crop in the Fogera. However, crop yields are low due to lack of various agronomic management practices. Among these, lack of site-specific seed rate and fertilizer levels are the major limiting factors. Therefore, a field experiment was conducted at the Fogera National Rice Research and Training Center in 2019 to study the effects of seed and nitrogen with phosphorus fertilizer rates on …
Published in Research & Reviews : Journal of Botany · Vol. 12, Issue 2, 2023 · pp. 7–21 Read article
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Comprehensive Introduction: Epoxy and Polyurethane Floor Coatings—A Critical Evaluation for Modern Industrial Applications
Abstract: Industrial flooring systems are essential for ensuring operational durability, safety, and longevity in demanding environments. Epoxy and polyurethane (PU) coatings represent two predominant technologies, each offering distinct mechanical, chemical, and aesthetic profiles tailored to specific performance requirements. Epoxy systems, formed through the crosslinking of bisphenol-A-based resins with amine hardeners, excel in high-strength, chemically aggressive settings due to their superior hardness, adhesion, and chemical inertness. In contrast, PU coatings, synthesized from …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 13, Issue 1, 2026 · pp. 14–23 Read article
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The Role of Rubella Virus Infection among Women with Spontaneous Abortion in Al-Najaf Governorate
Abstract: Rubella virus could cause a spectrum of birth defects known as Congenital Rubella Syndrome (CRS) if the infection occurs within the first or second trimester of pregnancy. Repeated miscarriage is defined as a condition with two or more consecutive abortions before the 20–25 weeks of gestation. Rubella remains to be a severe public health problem in developing countries. Recurrent miscarriage is a multi-factorial disease, which occurs in approximately 1%–2% of …
Published in International Journal of Virus Studies · Vol. 3, Issue 2, 2026 · pp. 1–6 Read article
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Experimental Investigation of Flexural Strength and Impact Strength of Friction Stir Welded Ultrahigh Molecular Weight Polyethylene (UHMWPE)
Abstract: Friction stir welding (FSW) is a solid-state process in joining thermoplastic materials. Polymers are engineering materials used for future technological development as the polymer processing and fabrication techniques have developed plastic products and components in major industries. Utilization of ultrahigh molecular weight polyethylene (UHMWPE) material in engineering structures has increased because of its low weight, high specific strength, chemical resistance, design flexibility, corrosion resistance and reduced manufacturing costs. In present …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 3, 2015 · pp. 8–15 Read article
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Effects of NPS Fertilizer Rates on Yield and Yield Components of Potato (Solanum tuberosum L.) Varieties in Southern Ethiopia
Abstract: Solanum tuberosum L. is a high-yielding crop that can be produced twice or four times per year. But its yield is limited due to low soil fertility and limited use of improved varieties. The study's objective was to identify the blend NPS fertilizer rates for potato varieties yield and yield components. The experiment was carried out using a factorial Randomized Complete Block Design (RCBD) with three replications. The results revealed …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 11, Issue 3, 2022 · pp. 10–25 Read article
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Accepting Internet of Nano Things: synopsis, developments, and challenges
Abstract: A thorough audit of the current state and future prospects of the Internet of Nano-Things (IoNT) is conducted, and specific data is presented. The concept of IoNT emerged from the networking of nano machines with the Internet. This study's primary goal is to provide a thorough understanding of IoNT, as well as application areas and strategies for overcoming current obstacles, IoNT Security and utilising IoNT in the future. As IoT …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 13, Issue 2, 2023 · pp. 17–26 Read article
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Research on Laser Hardened Bead Geometry in Laser Hardening Parameters of ASTM Grade3 Pure Titanium
Abstract: AbstractIn the presented study, the laser transformation hardening of commercially pure titanium sheet material of thickness being 1.6 mm is investigated using CW (continuous wave) 1.6 kW solid state Nd:YAG laser. Commercially pure titanium has widespread application in various fields of industries including the medical, nuclear, automobile and aerospace. A full factorial design (FFD) with response surface methodology (RSM) is employed to establish, optimize and to investigate the relationships of …
Published in Research & Reviews : Journal of Physics · Vol. 6, Issue 1, 2017 · pp. 22–37 Read article
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Optimizing Manufacturing Processes with Taguchi Method in Production Engineering
Abstract: The Taguchi Method, pioneered by Genichi Taguchi, stands as a powerful optimization tool within the realm of production engineering. This paper delves into the principles, applications, and significance of the Taguchi Method in enhancing manufacturing processes. With a focus on minimizing variation and improving performance, this methodology plays a crucial role in addressing challenges faced by industries in their pursuit of operational excellence. The core components of the Taguchi Method, …
Published in International Journal of Robotics and Automation in Mechanics · Vol. 1, Issue 2, 2023 · pp. 1–8 Read article
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Structure–Property Correlation of Infill Topology and Density on Tensile and Flexural Performance of FDM-Printed PLA and ABS
Abstract: Additive Manufacturing (AM), particularly Fused Deposition Modeling (FDM), has become a widely adopted manufacturing technology due to its design flexibility, low cost, and capability for rapid prototyping. However, the mechanical performance of FDM-printed components is strongly influenced by internal structural parameters such as infill pattern and infill density, in addition to the intrinsic material behaviour. This study investigates the structure–property relationship between infill topology, density, and mechanical performance of PLA …
Published in International Journal of Fracture Mechanics and Damage Science · Vol. 4, Issue 1, 2026 · pp. 26–37 Read article