Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

Digital Image Steganography: Substitution techniques

Abstract: As the development of internet takes place, variety of digital data ( text, video, images and audio) transmits to worldwide society Problem may arise that the confidential data can be stolen or hacked in many ways To protect the contents from interceptors' attention, the image hiding technology thus emerged Steganography is the art and science of hiding information by embedding secret messages within other, seemingly harmless media Steganography essentially does is exploit human perception, human senses are not trained to look for files that have information hidden inside of them, although there are programs available that can do what is called Steganolysis In this paper we present spatial technique which is also known as Substitution method In this method message bits are embedded into different bits of the pixel grey level values, resulting in increased robustness The robustness would be increased against those attacks which try to reveal the hidden message and also some unintentional attacks like noise addition as well

Network Security: A Shield to the Users

Abstract: The integration of Internet and mobile Internet, Internet of Things (IOT), promote the wide application of the industrial Internet and other vertical Internet. The Internet is spreading widely with a tremendous speed and with the spread of Internet, the security concerns are also increasing. Traditional networks of a variety of viruses, hackers and other threats expand the network to the new system, they cause damage to the system. In this paper, there is the introduction of network security, types of network security, benefits of network security combined with the safety requirements and the analysis on the level of safety requirements as well as the approaches of security detection.

A Simulation Study of Parallel Particle Swarm Optimization Algorithm for Proportional Integral Derivative Controller Tuning

Abstract: In this paper, proportional integral derivative (PID) controller is tuned with the help of particle swarm optimization algorithm (PSO) and parallel PSO (PPSO). To evaluate the system complexity and process speed, the testing on Rosenbrock, Rastrigrin and Griewank functions is also performed. The aim behind implementation of PPSO is improving the efficiency, running time and robustness of the system. Nyquist plot, Bode plot, Root locus and Nicholas chart are drawn for evaluating the system parameters such as peak amplitude, bandwidth, relative stability; gain margin, phase margin, gain value, stability and robustness of the system along with the running time.

Analytical and numerical evaluation of the effect of stiffening with the rigidity of bearing stratum on the reduction of settlement for a partially stiffened granular pile

Abstract: A traditional approach of using granular pile (GP) is an economical and effective technique to achieve the objectives of ground improvement. If GP is partially stiffened from the top of GP, their o...

A dual-band band pass filter using rings resonator for space communication

Abstract: A Dual-band BPF with parallel-coupling feed and ring resonators is designed and simulated. Parallel coupling feed, results in good coupling between input and output and good isolation between frequency bands by generating deep zero between passband. Ring resonator make filter as dual-band by shifting higher order resonating modes to desired frequency range. Filter response results in two frequency bands 4.808–5.216 GHz and 8.348–9.043 GHz covered in C and X band respectively. Some applications of these bands are mobile communication, Radio astronomy, space research and aeronautical radio navigation. Compact size (131 mm2), Small group delay (<0.43 nanosecond), large attenuation in stop band (larger than 20db till 16GHz), higher 3dB FBW (21.47% and 19.87%), small insertion loss, large return loss in passband are some advantageous factors of proposed filter design. Simulation is done using CST microwave studio 2013.