In modern life, users use the cloud spaces for storing important data and valuable information. To avoid security problems, every storage provider requires help from several mechanisms. Every mechanism has its own scheme. Most of them PBKDF (Password-Based Key Derivation Function) Salt generating encryption keys. By analyzing, we found that unique random plays a vital role But to create powerfu...

A huge amount of construction waste is generated in sites every day that needs to be transported by vehicle disposal facilities for processing. Unlike most typical transportation problems, once these vehicles are loaded with waste, they must travel directly the facility. Moreover, there different types may require handling facilities. In this paper, we develop a model and algorithm identifying ...

The Volterra delay integral equations have numerous applications in various branches of science, including biology, ecology, physics and modeling of engineering and natural sciences. In many cases, it is difficult to obtain analytical solutions of these equations. So, numerical methods as an efficient approximation method for solving Volterra delay integral equations are of interest to many res...

The paper is devoted to solution of some problems in nuclear power station generating unit intellectual control systems using genetic algorithms on the basis of control system model development, optimizations methods of their direct quality indices and improved integral quadratic estimates. Some mathematical vector models were obtained for control system multicriterion quality indices with due ...

Multicommodity distribution problem is one of the most interesting and useful models in mathematical programming due to its major role in distribution networks. The purpose of this paper is to describe and solve a special class of multicommodity distribution problems in which shipment of a commodity from a plant to a customer would go through different distribution centers. The problem is t...