To ensure secure transmission of data and to authenticate remote user while accessing server resources, smart card based remote user authentication schemes have been widely adopted. In 2004, Das et al proposed first of its kind of protocol for remote user authentication with smart cards using Dynamic Id to protect user anonymity. In 2005, Chien et al pointed out that Das et al scheme failed to ...

This research includes of the numerical modeling of fluids in two-dimensional cavity. The cavity flow is an important theoretical problem. In this research, modeling was carried out based on an alternating direction implicit via Vorticity-Stream function formulation. It evaluates different Reynolds numbers and grid sizes. Therefore, for the flow field analysis and prove of the ability of the sc...

This paper proposes a novel scheme of Fuzzy Logic based dynamic routing in computer networks. The proposed dynamic routing algorithm is suited for application in Interior Gateway Protocols (IGP) inside an autonomous system (AS), such as a Local Area Networks (LAN). It is used in the protocols to find out a set of best possible routes, where each of the nodes broadcasts link status rather than b...

certificateless public key cryptography (cl-pkc) is a useful method in order to solve the problems of traditional public key infrastructure (i. e. large amount of computation, storage and communication cost for managing certificates) and id-based public key cryptography (i. e. key escrow problem), simultaneously. a signcryption scheme is an important primitive in cryptographic protocols which p...

in today's complex, tension - striken and tumultuous world, the profession and private life of individuals are so comingled to each other, - and even the profession life often have dominated their private life - that made the organizations to pay more attention to the quality of their employees' profession life. so one of the most important objectives of individuals is to find a reput...

in this paper, a high-order and conditionally stable stochastic difference scheme is proposed for the numerical solution of $rm ithat{o}$ stochastic advection diffusion equation with one dimensional white noise process. we applied a finite difference approximation of fourth-order for discretizing space spatial derivative of this equation. the main properties of deterministic difference schemes,...

in this paper, a numerical efficient method is proposed for the solution of time fractionalmobile/immobile equation. the fractional derivative of equation is described in the caputosense. the proposed method is based on a finite difference scheme in time and legendrespectral method in space. in this approach the time fractional derivative of mentioned equationis approximated by a scheme of order o...

This paper presents an annotation scheme for modelling citation contexts in scientific articles. We present an argumentation framework based on the Toulmin model for scientific articles and develop an annotation scheme with different context types based on the argumentation model. We present the results of the inter-rater reliability study carried out for studying the reliability of our annotat...

We define and study the Picard group of a monoid scheme and the class group of a normal monoid scheme. To do so, we develop some ideal theory for (pointed abelian) noetherian monoids, including primary decomposition and discrete valuations. The normalization of a monoid turns out to be a monoid scheme, but not always a monoid.

6 We propose a new numerical scheme for a class of one-dimensional reflected stochastic differential equations (SDEs) by virtue of their explicit solutions, which enables us to carry out the simulation of this class of reflected SDEs by simulating some related SDEs without reflections. The new scheme yields the same order of convergence as the scheme for the SDEs without reflections.