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100 articles for “defects”
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Experimental Test Results on the Effect of Ultrasonic Waves on Defects in Car Bearings: The Effect of Defect Size
Abstract: To check for defects in car bearings, they are identified and measured by sound waves that are affected by the defect. Based on sound, it is called ultrasound technology because it uses high frequencies. High frequencies are the basis of ultrasound. Two features are useful for low-speed cars, which by definition usually have poor signal tolerance. High frequencies are sensitive to the effects of sound waves. In addition, the ultrasound …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 7, Issue 1, 2021 · pp. 14–21 Read article
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Experimental Investigation of Bearing Inner and Outer Wall Defects by Ultrasonic Waves
Abstract: Sometimes the bearings show their defects by exchanging between the network gears, and this can be useful for experimental and similar experiments. These defects will cause the bearing to malfunction, the bearing to malfunction and need to be repaired and maintained, which can be useful for the industry and save potential costs. These defects can be significant through ultrasound to combine time and frequency variables, which is addressed in this …
Published in International Journal of Manufacturing and Materials Processing · Vol. 7, Issue 1, 2021 · pp. 32–37 Read article
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A Descriptive Study to Assess the Knowledge Level of Selected Character Defect among Adolescents in a Selected Village at Kanyakumari District
Abstract: The present study was undertaken to assess the knowledge level of selected character defect among adolescents in a selected village at Kanyakumari district. The aim of the study is to assess the knowledge regarding selected character defect among adolescents. To find out the association between knowledge regarding selected character defect and socio-demographic variables. Research approach: Quantitative research approach was used. Research design: A descriptive design was selected for this study. …
Published in International Journal of Obstetrics, Perinatal and Neonatal Nursing · Vol. 5, Issue 1, 2019 · pp. 14–19 Read article
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Examination of Internal Defects in the Casting Process by Using a Scanning Electron Microscopy
Abstract: In today's manufacturing landscape, stringent requirements and specifications for mechanical properties and other characteristics have become crucial for top casting manufacturers. This paper focuses on using Scanning Electron Microscopy (SEM) as a powerful tool to analyze internal defects that significantly impact the performance of castings. Specifically, it delves into various aspects of this approach, including the identification of bifilm deficiencies in ductile and chromium cast iron, near-surface corrosion induced by …
Published in International Journal of Manufacturing and Materials Processing · Vol. 10, Issue 1, 2024 · pp. 6–18 Read article
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Intelligent Gear Inspection: Defect Detection through Digital Image Processing Algorithms
Abstract: A significant contributor to poor reliability and a source of humiliation for businesses are gear problems. The majority of the inspection procedures used in these businesses are laborious and manually. More thorough and accurate inspection procedures are needed to improve accuracy in finding gear problems. The present work fills this gap by implementing a Gear Defect Recognizer that uses local thresholding in conjunction with computer vision methodology to spot potential …
Published in International Journal of Computer Aided Manufacturing · Vol. 9, Issue 1, 2023 · pp. 13–21 Read article
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Experimental Investigations for Reduction of Defects In MIG Welding Process
Abstract: An experimental analysis has been tested to understand the roll of process parameter of MIG welding on under frame assembly components. Three important process parameter like a current, voltage and rate of gas flow MIG Welding process were used to reduce the welding defects in under frame assembly components. Taguchi method approach has been adopted to identify the process parameter level to have reduced welding defects in under frame assembly …
Published in International Journal of Mechanics and Design · Vol. 8, Issue 2, 2022 · pp. 35–45 Read article
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Compact Microstrip Patch Antennas Combining Sierpinski and Koch Fractal Geometries With Defected Ground Structure
Abstract: In this paper, a novel technique to compact the size of microstrip patch antennas is proposed. Based on experiments, it is found that by increasing iteration order of fractal geometries with defected ground structure, the resonant frequency of a patch antenna can be extremely lowered and this property can be employed to reduce the size of a microstrip patch antenna. Combination of Koch and Sierpinski fractal shapes are used to …
Published in International Journal of Analog Integrated Circuits · Vol. 3, Issue 1, 2017 · pp. 20–25 Read article
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DOUBLE U-SLOTTED CIRCULARLY POLARIZED MICROSTRIP ANTENNA WITH DEFECTED GROUND STRUCTURE
Abstract: Double U-slot truncated patch antenna is designs and simulates frequency in microstrip patch antenna using Defected ground structures with co-axial feeding. This paper presents a circular polarized (CP) Double U-slot microstrip antenna with single band for wireless communications system application which is suitable for the 2.35 GHz single-band operations. Antenna design in double U-slot truncated patch in Defected ground structure. The proposed antenna designed on FR-4(lossy) with dielectric constant of …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 2, 2017 · pp. 14–18 Read article
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Identification of diesel engine defects of corvette type naval ships
Abstract: One of the main machineries of a ship is the high-speed diesel engine, which is used for main and auxiliary propulsion systems. Due to the high cost of these assets, their operational reliability needs to be optimally ensured for efficient and effective exploitation of these machineries. The current existing flow chart of registering diesel engine defects has been reviewed and a new methodology, which is more systematic and reliable has …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 3, Issue 1, 2017 · pp. 1–13 Read article
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A Work Study on Forging Processes and Its Various Defects
Abstract: The aim of this review paper is to investigate the forging defects and mainly to understand different forging processes. A brief description about classification of forging process on the basis of temperature of work piece (hot, cold, and warm forging) and on the basis of arrangement of dies is given. Die design parameters, die material requirements and selection of proper die materials are briefly discussed. Also, briefly described the forging …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 3, Issue 2, 2017 · pp. 18–24 Read article
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To Assess the Effectiveness of Hoffman’s Exercise Among Postnatal Mothers with Nipple Defect Admitted at Tertiary Care Hospital, Kuppam, Andhra Pradesh
Abstract: Background and aims: Hoffman’s exercise care is the innovative method of taking care of inverted nipple and its management, the main aim of the study is assess the Effectiveness of Hoffman’s exercise among Postnatal Mothers admitted at Tertiary care hospital. Material and Methods: Quantitative research design was used on selected 30 postnatal mothers who met with the inclusion criteria and Hoffman’s exercise is demonstrated. Results: Showed the analysis of posttest …
Published in International Journal of Obstetrics, Perinatal and Neonatal Nursing · Vol. 10, Issue 2, 2024 · pp. 54–61 Read article
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Performance Analysis of SVM and CNN Networks for Defect Detection in Solar Panel
Abstract: Use of solar panel in generating electricity is increasing globally day by day to meet the increase in demand of power. Many developments have been made in order to achieve higher efficiency of the system. But efficiency of the system may still decrease due to harsh environmental conditions or poor handling of the. These factors highly contribute in the performance degradation of the system. For detection of these irregularities, human …
Published in International Journal of Analog Integrated Circuits · Vol. 7, Issue 1, 2021 · pp. 15–24 Read article
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A Partial Defected Ground Microstrip Array Antenna for Energy Harvesting at GSM Band with enhanced Bandwidth and Gain
Abstract: An array of 2×1 microstrip patch antenna array is designed having a defected ground partial ground plane. This array covers the entire GSM band defined by IEEE standards i.e. 890-960 MHz. It is a Wide Band microstrip patch array with enhanced gain and directivity compared to conventional single microstrip patch antenna. Partial ground plane increases the bandwidth of the antenna, thus by creating a partial ground plane of right dimension …
Published in International Journal of Microwave Engineering and Technology · Vol. 2, Issue 2, 2016 · pp. 12–17 Read article
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Gain Enhancement of a Filtenna Using Defected Ground Structures Technique
Abstract: This paper presents a compact filtenna with enhanced gain by improving the structural shape of filtenna using defected ground structure(DGS) technique. A filtenna is an integration of a filter and an antenna into a one device. This combination leads to the reduction in the system size, weight cost and complexities. The proposed filtenna consists of a hairpin bandpass filter and a hexagonal-shaped microstrip patch antenna. The filtenna without DGS has …
Published in International Journal of Telecommunications & Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 35–42 Read article
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A Comparative Study of Ceramic Foam Filtration Methods in Metal Casting
Abstract: Ceramic foam filtration has emerged as a revolutionary technology in the metal casting industry, significantly enhancing the quality of cast products by effectively removing inclusions and impurities from molten metal. This study provides a comprehensive examination of the mechanisms underlying ceramic foam filtration, focusing on the interactions between the molten metal and the ceramic filter material. Various types of ceramic foams, including alumina, zirconia, and silicon carbide, are analyzed for …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 2, 2024 · pp. 21–27 Read article
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Ferromagnetism in Rare Earth Metal Doped ZnO: A Theoretical Approach
Abstract: The ferromagnetic properties of Diluted Magnetic semiconductor, Zn1−xDyxO is studied from theoretical point of view. The Heisenberg’s and Greens theorem determine the Hamiltonian of the system. The interaction between the nearest neighboring spin is determined by retarded Greens function. By using Greens theory, defect-induced ferromagnetism is discussed. For the ferromagnetic states, the expected exchange integral is positive and negative for the antiferromagnetic states. In addition, from magnetic property, the temperature …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Holistic Care in a Baby with Prolonged Hospitalization in Pentalogy of Fallot: A Case Report
Abstract: Pentalogy of Fallot is a rare congenital heart defect comprising of classic four features of Tetralogy of Fallot: ventricular septal defect, pulmonary stenosis, overriding aorta and right ventricular hypertrophy with addition of an atrial septal defect or patent ductus arteriosus. An additional ASD is seen in 3 to 5% of children with TOF. Treatment comprises of surgical correction of the defect involving patch closure of the ventricular septal depict, resection …
Published in International Journal of Cardiovascular Nursing · Vol. 6, Issue 2, 2020 · pp. 29–38 Read article
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Studies on non-destructive inspection of steel wire ropes
Abstract: Non-destructive tests (NDT) of steel wire ropes under services are experienced to estimate remnant life with reference to new and similar components tested under similar conditions. Inspection by magnetic defect-stray fields’ to gamma radiography for imaging defects in addition, for suspended bridges have been methods of tests to configure defect morphologies in wires. This is beyond standard periodic inspections accounted from constrains of pre broken wires, multi-axial deformation, frictional wear, …
Published in International Journal of Analytical and Applied Chemistry · Vol. 5, Issue 1, 2019 · pp. 43–50 Read article
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Next-generation Monitoring: Arduino-based Networking Approach for Underground Cable Fault Detection
Abstract: This study presents a novel approach that makes use of networking technology and Arduino microcontrollers to identify defects in subterranean cables. For electricity distribution networks to continue to be dependable and safe, defects in subterranean cables must be accurately located and detected. An Arduino-based system to concurrently identify defects and determine their lengths in subterranean cables. Through the integration of sensors that are attached to Arduino boards with a networked …
Published in International Journal of Broadband Cellular Communication · Vol. 9, Issue 2, 2023 · pp. 11–17 Read article
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Lean Manufacturing
Abstract: An important goal of lean manufacturing is to speed up response times from suppliers and consumers as well as times spent in the production system. It has a tight relationship to another idea known as just-in-time manufacturing (JIT manufacturing in short). Just-in-time manufacturing prioritises productivity, effectiveness, and waste reduction for the producer and supplier of goods in an effort to match output to demand by only supplying items that have …
Published in International Journal of Manufacturing and Materials Processing · Vol. 8, Issue 1, 2022 · pp. 23–26 Read article