iran has high potential and unique stone reserves in terms of variety of color, texture, quality, and economic value; nevertheless, in spite of growing mine production during the past decade, in many instances this potential has been overlooked. therefore it is necessary to investigate strategic factors of these mines. the purpose of this study is to evaluate and determine the best strategies f...

Screening weapon-systems is a critical task in determining whether a systems development effort will be successful and eventually provide the increased war fighting capability the user had originally envisioned. Weapon system selection is a multi-criteria decision problem that must be accomplished within a constrained resource environment. Several alternatives must be considered and evaluated i...

In the current Internet, most of the traffic is transmitted by TCP (Transmission Control Protocol). In [1], we have proposed a modeling approach for the entire network, including TCP congestion control mechansims operating at source hosts and the network seen by TCP connections, as a single feedback system. However, in [1], our analytic model is limited to a simple network, where TCP connection...

We present skeleton-motivated evaluation of QCD observables. The approach can be applied in analytic versions of QCD in certain classes of renormalization schemes. We present two versions of analytic QCD which can be regarded as low-energy modifications of the “minimal” analytic QCD and which reproduce the measured value of the semihadronic τ decay ratio rτ . Further, we describe an approach of...