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1131 articles for “test”
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Sound-based Bird Classification Using Perceptual Features and Machine Learning: A Gaussian Mixture Model
Abstract: Classification of birds based on their sound patterns and identification of bird species found in the chirping sounds of birds were experimented with using the feature extraction method. This work is beneficial in ornithology to study birds and their behavior based on their sounds. The proposed methods can automatically classify birds by different sound processing. The audio file of a bird’s sound recording is first cut into smaller samples, and …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 9, Issue 2, 2023 · pp. 46–52 Read article
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Identification and Analysis of Characteristic Required by Women Entrepreneur
Abstract: Abstract Entrepreneurs in the country play a vital role in the overall development of the country. This project basically focuses on the study of several characteristics required for women to become entrepreneurs. This project is mainly executed in many steps the first one involved selection criteria for the women entrepreneurs. Second one was personal visit to for knowing their personal details of an entrepreneur. The questionnaire we prepared covered four …
Published in International Journal of Software Computing and Testing · Vol. 1, Issue 1, 2015 · pp. 27–39 Read article
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Experimental Realization of Constrained Optimization of Sliding Mode Controller Parameters with Modified Objective Functions
Abstract: An appropriately tuning of Sliding Mode Control (SMC) can be used to overcome the weaknesses like sensitivity to parameter variations, modeling errors and external disturbances. In this research article, Non-Dominated Sorting Genetic Algorithm (NSGA-II) based SMC with modified objective function and the best weight values have been evaluated to improve the performance of closed-loop level control system. Equivalent weights and importance weights are assigned to each term of an objective …
Published in International Journal of Software Computing and Testing · Vol. 6, Issue 1, 2020 · pp. 8–25 Read article
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Optimal Location of Static Var Compensator Using DE Algorithm
Abstract: This paper discusses on the optimal location of Static Var Compensator (SVC) using Differential evolution (DE) algorithm. FACTS devices are employed to improve the power transfer capability and voltage profile in power system networks. Here, the optimal location to place an SVC is identified depending on the power flow, voltage profile and transmission losses. The ability of SVC to improve voltage profile and reduce losses is also analysed. SVC is …
Published in International Journal of Electrical Power System and Technology · Vol. 2, Issue 2, 2016 · pp. 1–8 Read article
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SIMULATION ANALYSIS OF A NOVEL FIVE-LEVEL DIODE CLAMP MULTILEVEL INVERTER TOPOLOGY FOR INDUSTRIAL APPLICATION
Abstract: This paper presents a new five level diode clamped multilevel inverter topology which can be used for low-medium power industrial applications. In this work proposes single phase five level Diode Clamped Multilevel Inverter (DCMLI) topology using an auxiliary switch is presented, the number of power devices required to implement a five-level output. The topology is tested in the design of a 5 levels diode clamp multilevel inverter simplified; circuit operation …
Published in International Journal of Electrical Power System and Technology · Vol. 5, Issue 2, 2019 · pp. 35–43 Read article
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HVDC Transmission Line Transient Power Protection: A Review
Abstract: HVDC transmission line is preferred more than HVAC transmission line due to its leading advantages over EHVAC system so HVDC transmission line protection is one of the major concerns in the current power system. The transients are generated in HVDC system during the occurrence of faults. This paper gives a briefing about the transient energy protection scheme for protection of HVDC line. Here, nature of HVDC line during internal and …
Published in International Journal of Electrical Power System and Technology · Vol. 6, Issue 2, 2020 · pp. 22–30 Read article
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Knowing Captchas Using Deep Learning
Abstract: Websites can use CAPTCHA (Completely Automated Public Turing Test to Differentiate Computers from Humans) to distinguish between humans and machines and prevent automated attacks by programmers and malicious programmers. Studies on CAPTCHA recognition have the potential to uncover security flaws, advance CAPTCHA technology, and even advance handwriting and license plate recognition. However, the whole objective of the CAPTCHAs can be bypassed by utilizing the principles of deep learning and computer …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 8, Issue 2, 2022 · pp. 30–40 Read article
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Beyond the Classroom: Harnessing the Power of Android for Early Childhood Education Development
Abstract: The point of this inquiry is to address, like, you know, the issue of more prosocial behavior in children, both at domestic and in open spaces. This was distinguished through, like, perceptions and interviews with guardians, who, you know, accept that the need of their interest in their children’s prosocial improvement is, like, due to their restricted understanding. To progress, like, early childhood prosocial behavior, we created an Android-based Early …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 9, Issue 2, 2023 · pp. 22–29 Read article
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A Simple Method for Estimation of Surface Transfer Impedance of Coaxial Cables as Per MIL STD 1377 for EMC Qualification
Abstract: In recent years, electromagnetic compatibility (EMC) problems associated with high frequency and high speed inter connects are becoming of increasing concern. Coaxial cables are a popular form of inter connect between intra- and intersystems and subsystems. Transfer impedance is a measure for assessing the shielding effectiveness of outer shield of a coaxial cable. In this paper, we proposed an easy and inexpensive method for estimating the surface transfer impedance (STI) …
Published in International Journal of Microwave Engineering and Technology · Vol. 2, Issue 1, 2016 · pp. 31–38 Read article
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Design A Kaiser Window Based Digital Filter by Using GRNN
Abstract: In this paper, we have designed the digital filter based on Kaiser Window function using ANN. Firstly we have designed the 10th order digital filter based on Kaiser Window function then calculate the coefficient of designed filter. Similarly this process is repeated for the 15th and 20th order. We have normalized the frequency and designed filter at frequency ranges 0.05 to 0.95 Hz. Then we calculated the coefficients of filter …
Published in International Journal of Microwave Engineering and Technology · Vol. 2, Issue 1, 2016 · pp. 39–44 Read article
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Design and Verification of High Performance AMBA AHB to APB
Abstract: The AMBA AHB to APB Bridge provides an interface between the Advanced High-performance Bus (AHB) and the Advanced Peripheral Bus (APB) with change in bus width which support 8, 16, 32, 64, 128, 256, 512, 1024 bits configurable design with compiler directive. We design AHB slave, APB controller and APB interface. It allows inserting the wait state with the burst transfer for read and writing operation. The AHB transactions are …
Published in International Journal of Microwave Engineering and Technology · Vol. 6, Issue 2, 2020 · pp. 33–42 Read article
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Background of Gas Turbine Engines for Electric Power Generation Engine Controls
Abstract: This article pointed out the basic history of gas turbine engines for the generating electricity. The two primary engine forms, single and twin shafts, are presented followed by a study of the operational principles of the twin-shaft engine. The primary controllers used in conventional gas turbine engine models for power generation research have finally been established. In the production process, there is often a need to test electrical motor drives …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 6, Issue 2, 2020 · pp. 1–8 Read article
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Design and Simulation of Improved Particle Swarm Optimization Based Capacitor Placement in Distributed Generation System
Abstract: A major investigation was carried out to arrange the optimal condenser arrangement for the powerfactor adaptation, improvement of the voltage profile and the decrease of losses within theappropriation frameworks. In particular, a mechanical plant has large inductive loads withunpredictable load conditions and an incredibly low power factor. In most situations, the key reasonwhy a customer sends a condenser bank is to keep the power bank free from punishment. Power factoris …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 7, Issue 1, 2021 · pp. 1–10 Read article
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Automation Process for Power Management in Stand-Alone Photovoltaic System
Abstract: This paper is focused to the development of an automation process for managing the energy generated by stand-alone photovoltaic installations. The work not only includes the study and analysis of the proposed method, but also the design and manufacturing of a prototype that controls the process of energy transfer from the PV array to the load circuit. The design has been specifically developed for a dual inverter configuration that uses …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 8, Issue 2, 2022 · pp. 1–16 Read article
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Short Review on Nanofluidics with the Experimental Demonstration on Microfluidic Capillary Flow inside Microchannel Bends
Abstract: In this research work, author has presented a short review on nanofluidics. Total three individual microchannel bends as microfluidic devices are designed, fabricated and tested in this experimental work using author’s own hands-on completely. Polymethylmethacrylate (PMMA) is the selected polymeric material to fabricate these microfluidic devices. Dyed water is prepared as working liquid to test these microfluidic devices. According to this experimental study, the surface-driven microfluidic flow of dyed water …
Published in International Journal of Applied Nanotechnology · Vol. 6, Issue 1, 2020 · pp. 16–22 Read article
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Study and Implementation of High Performance Energy Harvester using Aerosol Deposition Method.
Abstract: This paper reports the high-performance piezoelectric energy harvester (EH) fabricated with PbxZr1-xTiO3 (PZT) or xPb(Mg1/3Nb2/3)-(1-x)PbTiO3 (PMN-PT) by aerosol deposition method. The other EH with the same construction and similar thickness of PZT thin film are fabricated and used as a comparison basis. The electrical and mechanical properties of both transducers are characterized and discussed. According to our previous work [1], the output power of a EH not only depends on …
Published in International Journal of Energetic Materials · Vol. 4, Issue 2, 2018 · pp. 28–33 Read article
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Correlation between full width at half maximum (FWHM) of XRD peak with mechanical properties
Abstract: Full width at half maximum (FWHM) of XRD profiles characterizes different mechanical properties. However, there is no literature available that discusses about the correlation between the FWHM of XRD peaks with mechanical properties (ultimate tensile strength, yield strength, strain hardening coefficient and micro-hardness) upon plastic deformation. Martensitic stainless steel (type 410) and Ferritic stainless steel (type 430) samples were plastically deformed under different strain rate using tensile testing machine. Variation …
Published in International Journal of Metallurgy and Alloys · Vol. 1, Issue 1, 2015 · pp. 15–23 Read article
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Optimization Process Parameters of Manganese Phosphate coating developed on En-19 Steels by Statistical Design of Experiment
Abstract: Phosphating is a chemical conversion process in which constituents of a metal surface with a view to produce thin adherent protective coating of insoluble crystalline phosphate by reaction with phosphoric acid solution. This conversion coating should have strong interfacial adhesion and porous enough. The growth of phosphate coating is influenced by method of cleaning of metal surface to be treated before treatment, use of surface activating rinses and acid or …
Published in International Journal of Metallurgy and Alloys · Vol. 2, Issue 2, 2016 · pp. 6–12 Read article
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Characterization and Wear Behavior of TiN, TiAlN, TiCrN and AlCrN PVD Coatings Deposited onto AISI H13 Hot Forging Die Steel
Abstract: Four Nitride coatings TiN, TiAlN, TiCrN and AlCrN were deposited onto AISI H13 hot work die steel by cathodic arc evaporation physical vapour deposition (PVD) technique. The coatings were characterized by SEM, SEM-EDS, XRD, line scan EDS and X-Ray mapping tests and micro hardness tester. The wear characteristics were investigated using a pin on disc method at high temperature and speed against En-31 bearing steel disc. It was observed that …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 2, 2018 · pp. 1–11 Read article
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Essential of bearing in materials engineering
Abstract: Essentials of bearing have been to maintain lubricant film to prevent metal to metal contact and hence local welding of two surfaces. Tribological and mechanical properties have improved by powder metallurgy route of bearing fabrications. Alloyed non-ferrous plane bearings have better friction coefficients than pure metals. Betterment has appeared in babbit/ bronze particulate reinforced composites. Ni addition has improved performances of graphite-lead free tin bronze composite layers on surface of …
Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 1–17 Read article