Volume 5 | Issue 4 |

 Abstract

The main advantage of using shot peening process is to increase the fatigue strength of components subjected to high alternating stresses. The fields of application for shot peening include all metallic components, which are subject to fluctuating and fatigue loads. Additional advantages of using shot peening include design of lighter weight and lower cost components, prevention of stress corrosion, formation of lubrication pockets and compensation of manufacturing related surface defects.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Shot peening, Fatigue failure, Design for fatigue loading

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Energy is very much essential for existence of our society. It is important and urgent to find alternative source to replace conventional fuel or to reduce its continuous consumption due to their limited reservoirs and bad impact on environment so we have to find alternative source of energy. This IOT performs the function are maintenance indication of solar panel using sensor and theft prevention. The efficiency of solar panel reduces due to dust deposited on the solar panel. To overcome this problem, A sensor is placed to alert for maintenance based on the IOT Application to achieve Android Application developed for both maintenance and theft prevention. For maximum power extraction from the sun, A photovoltaic cell with MPPT (Maximum power point Tracking) system is used. This will increase the system efficiency, for this light detecting resister is used. This prototype model can also be extended to larger system also.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Performance, Solar panel, Maximum power point tracker, Arduino

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Grid synchronization algorithms are of great importance in the control of grid-connected power converters, as fast and accurate detection of the grid voltage parameters is crucial in order to implement stable control strategies under generic grid conditions. This paper presents a new grid synchronization method for three-phase three-wire networks, namely three-phase enhanced PLL The enhanced phase-locked loop (EPLL) is a synchronization system that has proven to provide good results in single phase synchronization systems. An EPLL is essentially an adaptive band pass filter, which is able to adjust the cutoff frequency as a function of the input signal. Its structure was later adapted for the three-phase case, in order to detect the positive-sequence vector of three-phase signals, This paper analyses the performance of the proposed synchronization method including different design issues. Moreover, the behavior of the method for synchronizing with highly unbalanced grid is proven by means of simulation demonstrating its excellent performance.

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Performance Analysis of Grid Voltage synchronization in Distribution system with Faults

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 Abstract

A micro grid (MG) is a local energy system consisting of a number of energy sources (e.g., wind turbine or solar panels among others), energy storage units, and loads that operate connected to the main electrical grid or autonomously. MGs provide flexibility, reduce the main electricity grid dependence, and contribute to changing large centralized production paradigm to local and distributed generation. However, such energy systems require complex management, advanced control, and optimization. Moreover, the power electronics converters have to be used to correct energy conversion and be interconnected through common control structure is necessary. Classical droop control system is often implemented in MG. It allows correct operation of parallel voltage source converters in grid connection, as well as islanded mode of operation. However, it requires complex power management algorithms, especially in islanded MGs, which balance the system and improves reliability. The novel reactive power sharing algorithm is developed, which takes into account the converters parameters as apparent power limit and maximum active power. The developed solution is verified in simulation and compared with other known reactive power control methods.

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 Keywords

Hierarchical Droop Control strategy Based Reactive Power Management in Micro grid

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 Abstract

PI controller with control algorithms are used for load compensation and voltage regulation in D-STATCOM. Because of variation in dc capacitor voltage, load changes might affect the compensation. In this paper, we propose the new method of connecting the external inductor to the system. The main problems in distribution side are load variations, voltage sag, swell, unbalanced in loads, these types of problems are rectified in this paper by our proposed method. This will be proved using this proposed approach with MATLAB simulation results.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

DC Link Voltage Control, DSTATCOM, PI Controller, Transient Response, VSI.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

AES is one of the standard algorithm and widely used to encrypt and decrypt the data. In this paper, image encryption and decryption algorithm is implemented by using AES 128-bit core. Here, image information is converted into a hexadecimal format using MATLAB code and this plain hexadecimal data are transmitted to the FPGA via UART for encryption. Thus, the same process is al so used for Decryption. The entire AES 128-bit core is simulated and synthesized for Spartan-3E-1600E FPGA using Xilinx ISE 14.3 and implementing on FPGA. By this design we calculate Throughput and observe Memory Allocation, Timing Report, Power Distribution and Device Utilization. To achieve high security to data, less power consumption and gives low complexity architecture. It’s applicable in Defense and Research Organizations for send secure data from third party and make it easy for other Software and Hardware applications.. Results prove area utilization is less when compared to other results.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

AES, Image Encryption and Decryption, Block Cipher, Cipher text, Decipher text

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The sentiment analysis is the technique which can analyze the behavior of the user. Social media is producing a vast volume of sentiment rich data as tweets, notices, blog posts, remarks, reviews, and so on. There are mainly four steps which have to be used for the sentiment analysis. The data pre- processing is done in first step. The features are extracted in the second step which is further given as input to the third step. For the sentiment analysis, data is classified in the third step. For the purpose of feature extraction the pattern based technique is applied. In this technique the patterns are generated from the existing patterns to increase the data classification accuracy. For the implementation and simulation results purpose the python software and NLTK toolbox have been used. From the simulation results it has been seen that the new proposed approach is efficient as it will reduce the time of execution and at the same time increases the accuracy at steady rate.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Natural Language Processing, Sentiment Analysis, N-gram, Strings, SVM

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Branding,Perception,Financial Achievements

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Shot peening process increases the fatigue life of the part. It toughens the outer surface of the part, effectively increases the tensile strength and eliminates cracks and other imperfections. This is made possible due to the evenly spread compressive stress patterns that are developed during shot peening. The process effectively eliminates microscopic defects in the thin surface shell of the part. It is intended to reduce residual surface tensile stresses in metal parts which are subjected to repeated application of complex load patterns. Typical components that are shot peened for the purpose of improving resistance to fatigue and stress corrosion cracking are axles, springs, gears, shafting, aircraft components and structural parts. Shot peening is also used for other applications such as to close porosity in castings and to straighten or form the parts.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Shot Peening, Fatigue Strength, Work Hardening

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Licence: creative commons attribution 4.0

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Creative Commons Attribution 4.0 and The Open Definition

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Creative Commons Attribution 4.0 and The Open Definition