Nowadays, especially in period of energetic crisis, it is very important to get reliable data storage and uninterrupted access websites. Considering that the world’s mainstream using clouds services for educational, scientific, business purposes explore features hosting websites major cloud service providers. One leader’s vendors servicing Amazon with its Web Services (AWS). AWS offers solution...

In this paper, we consider a method of constructing isothermic surfaces in S3 based on Ribaucour transformations. By applying the theory to flat torus, obtain two family complete S3. One four-parameter that contains n-bubble inside and outside torus. We also get another which are Dupin surfaces. As aplication explicit solutions Calapso equation.

We propose a system that uses cloud storage as an hourly back-up system while providing a fully featured filesystem for distributed storage. We mount a fully featured filesystem stored in the cloud to a local server and take advantage of a very large local server cache so that we can have similar performance to a central local server while having the reliability of a cloud system. We use a modi...

The most widely used updating rule for non-additive probabilities is the Dempster-Schafer rule. Schmeidler and Gilboa have developed a model of decision making under uncertainty based on non-additive probabilities, and in their paper "Updating Ambiguous Beliefs" they justify the Dempster-Schafer rule based on a maximum likelihood procedure. This note shows in the context of Schmeidler-Gilboa pr...

In this paper we study the following question posed by H. S. Wilf: what is, asymptotically as n → ∞, the probability that a randomly chosen part size in a random composition of an integer n has multiplicity m? More specifically, given positive integers n and m, suppose that a composition λ of n is selected uniformly at random and then, out of the set of part sizes in λ, a part size j is chosen ...

In this paper, a concept of chance is introduced that is compatible with deterministic physical laws, yet does justice to our use of chance-talk in connection with typical games of chance, and in classical statistical mechanics. We take our cue from what Poincaré called “the method of arbitrary functions,” and elaborate upon a suggestion made by Savage in connection with this. Comparison is mad...

We prove robust representation theorems for monetary measures of risk in a situation of uncertainty, where no probability measure is given a priori. They are closely related to a robust extension of the Savage representation of preferences on a space of financial positions which is due to Gilboa and Schmeidler. We discuss the problem of computing the monetary measure of risk induced by the subj...

In the recent years, the learning of a foreign language has become more important and necessary than ever for many people of many different countries and mother tongues. The increasing necessity for learning a foreign language coincides with the Internet era, which has brought people closer through the computer communications. Thus, the Web seems a very appropriate medium for teaching a foreign...