Online ISSN: 2515-8260

Keywords : Optimization


Ultra-Secure Secret Communication by Crypto Stegano Techniques for Defence Applications

ASHISH SHARMA; NARENDRA MOHAN

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 4, Pages 376-384

This research paper proposes the communication devices in defence sectors shares secret information dynamically and it is vulnerable to hackers as they steal, corrupt or destroy the data. Though existing system uses different cryptographic techniques, yet suffers from various cyber-attacks. In order to communicate secretly, we propose novel optimized crypto stegano system with the cryptographic process implemented by Elgamal cryptosystem with secure key exchange, then steganographic process using quantum LSB image steganography by hiding the encrypted data into the randomly chosen image, also cover image is optimized using eagle strategy particle swarm optimization algorithm for high embedded efficiency. Then the data embedded in image is retrieved using steganographic retrieval technique and it is decrypted at receiver by Elgamal decryption using private key. Based on results, various parameters such as MSE, PSNR, embedded efficiency and carrier capacity are calculated and related with existing methods, thereby higher performance metrics are achieved in our proposed work.

Technical Assessment Of A Photovoltaic Panel And A Wind Domestic Turbine Systems In Morocco

A. Serbouti; M. Rattal; A. Boulal; E. Oualim; Az. Mouhsen

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 3, Pages 443-452

This paper presents a general methodology of optimizing the energy performance of a photovoltaic panel in five different cities in Morocco, by varying its slope and azimuth. A domestic wind turbine is also studied in Casablanca. For the same capacity, simulations in TRNSYS software prove that photovoltaic panels have a better yield than the domestic wind turbines. These wind generators can be coupled with the photovoltaic system in order to lessen the intermittence of the photovoltaic production at night and during short cloudy days.

Tashkent state technical university (Uzbekistan)

Anvar Vosilovich Kabulov; Ibrokhimali Holmamatovich Normatov; Anvar Abduvokhidovich Karimov; Erkin Ravshanovich Navruzov

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 758-771

The algorithm for constructing control models of complex systems should be based on the hypothesis that the research and control processes of complex systems are subject to a single technology. A comprehensive study of objects is needed, starting with preliminary study, obtaining adequate models, process algorithms, and ending with the creation of effective control systems. Therefore, the algorithmization of control processes using modern computer technology requires not only improved management at all levels, but also the creation of new effective methods for the rational and adequate description of objects of research, optimization and construction of a control algorithm. The general scheme of such an algorithmic approach is described below. In this paper, we give methods and models of algorithms that are of particular importance in the automation of all stages of system research and the construction of control algorithms. From this point of view, the research process of various objects should be divided into seven consecutive stages, which are a cybernetic chain with feedback. The paper also gives a formalized standard description based on function tables, an algorithmic method for solving the problems of managing complex systems based on algebra over function tables, and methods for synthesizing workplace complexes using production systems as an example.