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1386 articles for ““SPA””
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Progress of Graphene/Silicon Solar Cells-Present Status & Future Prospect
Abstract: The ever-increasing demand for next-generation high efficiency low cost solar cell has triggered interest to search for new materials which are easily available, environmentally benign as well as cost-effective. In this context, graphene has attracted tremendous importance due to its outstanding optical, electrical and mechanical properties, for possible application in future graphene/silicon Schottky and heterojunction solar cells. Significant progress has been noted as the power conversion efficiency of such cells …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 3, 2020 · pp. 19–29 Read article
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FPGA Implementation of Variable Step Size Adaptive Filters for Signal De-noising
Abstract: This paper presents the design and implementation of a variable step size 40 order adaptive filter for de-noising acoustic signals. Four different adaptive filters (LMS, Sign-Data, Sign-Error and Sign-Sign) were designed using three different structures, viz., direct form, transposed and the proposed structure and their de-nosing performance was compared. Further, the filters were implemented on three different Field programmable gate arrays (FPGAs), viz., Spartan 6, Virtex 6 and Viretx 7 …
Published in Journal of Semiconductor Devices and Circuits · Vol. 1, Issue 3, 2014 · pp. 7–19 Read article
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ULTRAFAST LASERS AND ITS USE IN ELECTRONICS INDUSTRY
Abstract: The size of semiconductors and packaged devices continues to shrink enabling the devices to become more compact . This trend requires the deployment of sophisticated equipments with inbuilt lasers that have unique capability to process diverse materials with high precision , but without damaging the electronic components due to heat . There are diverse laser technologies utilising longer pulse width or ultrashort pulse (USP) width that are employed in electronic …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 2, 2021 · pp. 34–45 Read article
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Improved Automated Car Parking System
Abstract: This research proposed an improved automated car parking system designed to minimize the area or control the influx of cars into a car park using a smart medium. The major problems of the car parking system are lack of authentication and validation system, no accurate detecting measures of the presence of cars and no proper measures for car security against car theft. However, the improved automated car parking system is …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 2, 2022 · pp. 17–27 Read article
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Reddish-orange Emission in Pr3+-V4+ Doped Ions in Calcium Lead Borosilicate Glasses for Photonics and Sensor Applications
Abstract: CaO-PbO-B2O3-SiO2:Pr2O3-V2O5 synthetic glasses were made using a traditional melt-quench method. In the UV-vis-NIR range, the optical absorption spectra show distinct transitions from different energy levels where simple Pr3+ ions are present. The absorption transition of V4+ ion identity exhibit 2T2g®2E2g (spin-allowed) single transition in the UV-vis region Because of the presence of the paramagnetic VO2+ ion, the EPR spectra showed high intensity hyperfine splitting of two sets of eight lines …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 3, 2024 · pp. 33–50 Read article
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A Survey of Haptic Feedback Integration in Mobile Devices
Abstract: “HAPTICS is a technique that gives virtual environments a tactile element. With haptic interfaces, we may create the impression that we are feeling surfaces, manipulating virtual clay, or moving objects around on a computer in addition to seeing them. Because touch is the brain's most powerful learning mechanism—more so than sight or sound—the new technology has enormous potential for use in education. Using haptic technology is similar to using a …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 3, 2024 · pp. 1–11 Read article
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Transient Dynamic Analysis of Tapered Traditional and Castellated I-Beam using FEM
Abstract: A transient dynamic analysis of typical hot-rolled I sections with solid and castellated web (in the form of a beam member) is performed for various boundary conditions. The analyses are performed for the web depth opening of 0.6D, since it behaves satisfactorily with regards to serviceability requirements at this opening size. Three different pair of sections are selected complying with classification of the sections provided in Table 2 of IS …
Published in Journal of Structural Engineering and Management · Vol. 5, Issue 2, 2018 · pp. 9–24 Read article
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Vibration and buckling analysis of functionally graded beams using a new beam element
Abstract: . In present paper, an analysis of free vibration and buckling of functionally graded beams using a finite element model based on first-order shear deformation theory is presented. The present work demonstrates a finite element programme using a five node beam element with thirteen degrees of freedom with one degree of freedom at the mid node and three degrees of freedom at each remaining four nodes. Power – law governs …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 1, 2019 · pp. 8–17 Read article
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Seismic Analysis of Symmetrical and Unsymmetrical Multistory Building with Shear Wall and Hybrid Shear Wall
Abstract: Shear walls are structural systems which provide stability to structures from lateral loads like wind, seismic load. Shear walls are added to the building interior to provide more strength and stiffness to the building when the exterior walls cannot provide enough strength and stiffness. It is necessary to provide these shear walls when the tolerable span width ratio for the floor or roof diaphragm is exceeded. Shear walls are mainly …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 3, 2019 · pp. 32–35 Read article
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Economical Design of Stiffened Plate using FEM
Abstract: This paper presents the economical design of stiffened plate subjected to transverse load. The model of stiffened plate is developed using ANSYS APDL 14.0 for the finite element analysis and design. At first, a convergence study is carried out to arrest the optimum mesh size for discretizing the plate. The maximum deflection of plate with and without stiffeners subjected to point and uniformly distributed load for both fixed and simply …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 2, 2017 · pp. 50–57 Read article
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Steel Ductile Detailing of Moment Resisting Frames for Pre-engineered Buildings
Abstract: Long span structures with no interrupting column are necessary in any type of industrial structures and pre-engineered buildings (PEB) satisfies this need along with less time and cost as compared to conventional structures. This methodology is adaptable not only due to its quality pre-designing and prefabrication, but also due to its light weight and economical construction. The concept includes the technique of providing the best possible section according to the …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 1, 2016 · pp. 36–44 Read article
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Comparative Study of Multistorey Building with Composite Column at Soft Storey
Abstract: Increase in population, car parking space is major concern. Hence, trend has been set up to use ground floor for parking purpose. Literature shows that, large number of reinforced concrete (RC) building with soft storey damaged by earthquake shaking due to many structural deficiencies such as, column with insufficient confinements, strong beam weak column, formation of plastic hinge at beam-column joint, opening of 90 degree ties, poor detailing in beam-column …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 2, 2016 · pp. 37–42 Read article
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Development of Controlled Concrete by using Hypo Sludge
Abstract: Over 300 million tones of industrial wastes are being produced per annum by chemical and agricultural process in India. These materials pose problems of disposal and health hazards.The wastes like phosphogypsum, fluorogypsum and red mud contain obnoxious impurities which adversely affect the strength and other properties of building materials based on them. Out of several wastes being produced at present, the use of phosphogypsum, flurogypsum, lime sludge, hypo sludge, red …
Published in Journal of Structural Engineering and Management · Vol. 1, Issue 1, 2014 · pp. 16–21 Read article
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Design of Steel Plate Shear Wall with Opening for Steel Building
Abstract: Steel plate shear walls have been used more and more in the steelstructures to resist earthquake and wind forces. This system offersseveral advantages as compared to the other usual lateral load resistingsystems. Steel saving, speed of erection, reduced foundation cost, and increased usable space in buildings are some apparent advantages ofthe steel plate shear walls. Steel plate shear walls also provide majorstiffness against building drift for the hi-rise buildings.This paper …
Published in Journal of Structural Engineering and Management · Vol. 1, Issue 3, 2014 · pp. 23–30 Read article
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Influence of Corrosion on Flexural Strength of Concrete
Abstract: The large-scale infrastructure uses reinforcement concrete. It has been believed that protection to steel reinforcement by concrete is permanent. The influence of atmospheric corrosion of steel and its performance in concrete has been subject to controversy in the construction industry. Service life of reinforced concrete structure can be significantly reduced when the corrosion of reinforcing steel is initiated; the product of corrosion expands and occupies greater volume than original volume …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 1, 2017 · pp. 35–42 Read article
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Study on the Response of Strengthening Strategies for Masonry-Infilled Open Ground Storey Framed Building
Abstract: The strengthening of reinforced concrete (RC) frame buildings with masonry-infill wall and with open ground storey is a very timely and significant topic because of the poor performance against seismic action. The absence of infill walls in the ground storey makes the ground storey less stiff and weaker than the all upper story’s which results in a poor performance against lateral loads. Soft storey mechanism prevails in these cases and …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 2, 2021 · pp. 22–37 Read article
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Comparative Study of Design Parameters of Flat Slab, Waffle Slab and Conventional Slab Using Etabs Software
Abstract: Different types of slab systems are conventional reinforced concrete slab which consist of beams and column for load transfer mechanism, Flat slab is that in which beams are not present and the slab is directly rested on the columns, and waffle slab is one in which the combination of deck and a system of equally spaced parallel ribs, having monolithic inter-section, that can be constructed in either orthogonal or skew …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 3, 2021 · pp. 7–14 Read article
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Comparative Study on Unsymmetrical G+15, G+20, G+25 Story Building with Flat Slab, Conventional Slab, And Flat Slab Without Drop
Abstract: There are different types of slabs from which the slab supported by column and beam is called as Conventional slab and the slab which is supported by Column and drop but the beam is not used in this slab is called as flat slab. Live and dead loads are transferred from slab to drop and then it is transfer to columns. This type of slab mostly preferred for long span …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 3, 2021 · pp. 15–27 Read article
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Study of Diagonal Ties and Metal Plate as a Confining Reinforcement for RCC Short Columns
Abstract: Column is a most important structural member in the structural system. Even after the strong column weak beam theory used in the design of the structural member it has been observed that the many times structure collapsed due to the failure of the column. There are many reasons of the column failure but out of that major reason of the failure is ineffective confinement of the column specimen and uneven …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 3, 2021 · pp. 39–46 Read article
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Effect on tunnel under varied pile loading using finite element analysis
Abstract: Use of underground space is increasing in densely populated cities. Underground excavation required extensive analysis for ground stability and to ensure the performance of a structure. Specific concerns arise during the design of the underground structures, such as the impact of excavation on nearby ground and existing building in the vicinity of excavation. Above ground structures may subject to disturbances due to any underground construction activity. This paper identifies the …
Published in Journal of Structural Engineering and Management · Vol. 9, Issue 2, 2022 · pp. 32–43 Read article