Engineering Journal

Monday, December 14, 2020

Accessing Suitability of Pinned Base and Fixed Base PEB Structure with Pile Foundation

Pre Engineered Buildings PEB buildings nowadays are majorly used in industrial areas for its economy and time optimization. In PEB structures, column base provided can be pinned or fixed. It is a general practice in PEB design that when the piles are provided or when the soil strata is weak, PEB column base selected is a pinned base. In such a condition, economy when compared with a fixed base is generally ignored in Indian practice. In this research, Two different industrial PEB sheds are analyzed and designed according to the Indian standard code IS 800 2007 with two different column base conditions one being the pinned base and another one being the fixed base, both resting on the piles. In this project the economy of structural steel and piles is evaluated for these two column end conditions. The soil under the PEB shed is simulated by the springs of varying stiffness at varying depth. The springs are assigned with the property of soil subgrade reaction obtained from the soil report. Thus bending moment, shear force, and deflection of a pile is found out and the soil can be simulated more accurately.

by Amol D. Vaidya | M. R. Nikhar | A. B. Dehane "Accessing Suitability of Pinned Base and Fixed Base PEB Structure with Pile Foundation"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020,

URL: https://www.ijtsrd.com/papers/ijtsrd38124.pdf

Paper URL : https://www.ijtsrd.com/engineering/structural-engineering/38124/accessing-suitability-of-pinned-base-and-fixed-base-peb-structure-with-pile-foundation/amol-d-vaidya

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Sunday, December 13, 2020

New Design Architecture of Chaotic Secure Communication System Combined with Linear Receiver

In this paper, the exponential synchronization of secure communication system is introduced and a novel secure communication design combined with linear receiver is constructed to ensure the global exponential stability of the resulting error signals. Besides, the guaranteed exponential convergence rate of the proposed secure communication system can be correctly calculated. Finally, some numerical simulations are offered to demonstrate the correctness and feasibility of the obtained results.

by Yeong-Jeu Sun "New Design Architecture of Chaotic Secure Communication System Combined with Linear Receiver"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020,

URL: https://www.ijtsrd.com/papers/ijtsrd38214.pdf

Paper URL : https://www.ijtsrd.com/engineering/electrical-engineering/38214/new-design-architecture-of-chaotic-secure-communication-system-combined-with-linear-receiver/yeongjeu-sun

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Investigation on the Creep Behaviour of Friction Stir Processed Al Ni Composite Material

Indentation creep experiments were carried out on friction stirred Aluminum Nickel composite. The samples were cut from Al Ni plate which was undergone by friction stir processing. The specimen was polished by different polishing methods to reveal the macro and micro structure of the material. The macro structure contains two zones base metal zone and friction stirred zone . Creep tests were carried out on both friction stirred and base metal region of test specimen at different temperatures with different loads. It was found that there was a significant difference between the creep rates of friction stirred region and that of base metal region when tested under various conditions. The Activation energy determined was found to in the range of 45KJ Mole to 55KJ Mole at lower temperatures. Based on these results it can be concluded that the operative mechanism is the dislocation creep. But at higher temperature the Activation energy was found to be in the range of 140KJ Mole to 170KJ Mole so the operative mechanism for creep is diffusion creep. Samples were metallographic ally prepared and the microstructures were studied under optical and scanning electron microscope. Results of the experiments were discussed.

by Marripally Ravikumar "Investigation on the Creep Behaviour of Friction Stir Processed Al-Ni Composite Material"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020,

URL: https://www.ijtsrd.com/papers/ijtsrd38145.pdf

Paper URL : https://www.ijtsrd.com/engineering/mechanical-engineering/38145/investigation-on-the-creep-behaviour-of-friction-stir-processed-alni-composite-material/marripally-ravikumar

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Saturday, December 12, 2020

Implementation of an Arduino Based Smart Drip Irrigation System

An Arduino based smart irrigation control system has been implemented to facilitate the automatic supply of adequate water from a reservoir to domestic crops at all seasons for effective production. The method employed is to continuously monitor the soil moisture level to determine when water is needed in the soil. A pumping mechanism is used to deliver the needed amount of water to the soil through pipes with vent holes. The work was grouped into power supply unit, sensing unit, control unit and pumping unit. A regulated 12 volts power supply unit was built to power the entire system and soil moisture sensor was used to model the electrical resistance of the soil. The control circuit was implemented using Arduino UNO and the pumping unit consists of a submersible low noise micro water pump using a 12 V small dc operated motor. The System was tested and the results obtained showed that this system was able to achieve total removal of human control from irrigation of domestic crops and also optimize the use of water in the process.

by Yomi Debo-Saiye | Henry. S. Okeke | Peter. O. Mbamaluikem "Implementation of an Arduino-Based Smart Drip Irrigation System"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020,

URL: https://www.ijtsrd.com/papers/ijtsrd38157.pdf

Paper URL : https://www.ijtsrd.com/engineering/electrical-engineering/38157/implementation-of-an-arduinobased-smart-drip-irrigation-system/yomi-debosaiye

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Seismic Analysis of Irregular Building Frames with Soil Structure Interaction

Seismic response of structure is extremely complex because of non linear behaviour soil during earth quakes. Seismic design of structure is generally carried out assuming fixed based ignoring the flexibility of soil. The purpose of the study is to describe and investigate different approaches of considering soil flexibility in the soil structure interaction SSI with regard to response in the super structure. In the present work, to illustrate the effect of soil – stricture interaction on the seismic response of frame structure, irregular frame 15 storey having consider with based supported as fixed with an without considering the soil structure interaction. Building are model in SAP 2000. Three type of soil i.e. hard, medium hard, soft soil are used to in SSI – study. the soil is model as spring model or elastic continuum FEM , and stiffness is calculated by using the gerorge gazettes equation. The effect of SSI on various structural parameter i.e. natural time period, based shear, roof displacement, are studed and discuss. The main objective in using this earthquake was, to find out of the structure when heat by long duration and see the how the response of modified, when the soil effect are taken into considerate.

by Sumit S. Chaudhari | M. R. Nikhar | V. A. Kalmegh "Seismic Analysis of Irregular Building Frames with Soil Structure Interaction"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020,

URL: https://www.ijtsrd.com/papers/ijtsrd38125.pdf

Paper URL : https://www.ijtsrd.com/engineering/structural-engineering/38125/seismic-analysis-of-irregular-building-frames-with-soil-structure-interaction/sumit-s-chaudhari

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Friday, December 11, 2020

Results of Sulfuric Acid Leaching of Ash from Oil Shale from Aktau Deposit

Hydrometallurgical methods are aimed at leaching to extract valuable components into a sulfuric acid solution, as well as selective extraction on ion exchange resins by sorption of valuable components such as vanadium oxide and molybdenum oxide. The presented methods are not implemented on an industrial scale, since there is no processing of oil shale in the Republic. A prospective scheme for processing ash from oil shale deposits has been analyzed. It includes the addition of sodium chlorine to the heat treatment process pyrolysis , the resulting ash is leached in vats with sulfuric acid 130 g l, at room temperature, S W = 1 3, duration 60 minutes. The resulting metal bearing sulfuric acid solution is filtered and sent to sorption, as well as precipitation. The extraction of metals into solution is more than 60 70 molybdenum and vanadium. It should be noted that with an increase in the consumption of sulfuric acid over 130 g l, the concentration of metals in the productive solution does not increase. For the extraction of metals from the productive solutions of leaching ash from oil shale in the Aktau deposit, the following ion exchange resins of the England Company PUROLITE were used for the extraction of molybdenum grade A 100 and vanadium grade A 109.

by Almatov Ilhomjon Mirzabek Ogli "Results of Sulfuric Acid Leaching of Ash from Oil Shale from Aktau Deposit"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-1 , December 2020,

URL: https://www.ijtsrd.com/papers/ijtsrd38091.pdf

Paper URL : https://www.ijtsrd.com/engineering/mineral-and-metallurgical-engineering/38091/results-of-sulfuric-acid-leaching-of-ash-from-oil-shale-from-aktau-deposit/almatov-ilhomjon-mirzabek-ogli

internationaljournalsofcomputerscience, callforpapercomputerscience, ugcapprovedjournalsforcomputerscience

Review on High Gain and High Performance N Polar GaN MIS HEMT at 30 GHz

The GaN HEMTs are well suited for receiver applications. But non linearities, such as third order inter modulation products can lead to signal distortion. Such non linearities are dominated by transconductance and its derivatives. A modified device structure of N polar GaN MIS HEMTs designed for high gain, have excellent linearity performance for low power receiver applications at 30 GHz. An OIP3 PDC of up to 15dB is demonstrated at 30 GHz using a vector receiver load pull system.