This paper is a follow-up of a companion paper by Hassani et al. (2012b) on a control design methodology for Dynamic Positioning (DP) of marine vessels and offshore rigs subjected to the influence of sea waves, currents, and wind loads using mixed-μ synthesis. The present paper describes the results of a design exercise in which robust controllers were designed for a representative vessel. Its ...

We obtain asymptotic formulas for the sums $\sum_{n_1,\ldots,n_k\le x} f((n_1,\ldots,n_k))$ and $ \sum_{n_1,\ldots,n_k\le f([n_1,\ldots,n_k])$ involving gcd lcm of integers $n_1,\ldots,n_k$, where $f$ belongs to certain classes additive arithmetic functions. In particular, we consider generalized omega function $\Omega_{\ell}(n)= \sum_{p^\nu \mid\mid n} \nu^{\ell}$ investigated by Duncan (1962)...

Background: Disinfection is performed in our laboratory using sodium hypochlorite, glutaraldehyde, alcohol, or hydrogen peroxide. All these products are known for their harmful side effects on human and ecological health. As a part of the search new sterilization methods that respect environment much more, we were interested studying antifungal activity ozone gas most isolated fungi hospital "U...

Using boundary-layer theory, natural convection heat transfer formulas which are accurate over a wide range of Rayleigh numbers ($Ra$) were developed in the 1970s and 1980s for vertical downward-facing plates. A comprehensive formula upward-facing plates remained unsolved because they do not form conventional boundary-layers. From thermodynamic constraints on heat-engine efficiency, novel appro...

Factors Affecting Public-Private Sector's Support for the Elementary Schools M.H. Hassani Shalmaani, Ph.D. Factors affecting the public-private sector's support for elementary education were identified perusing related legislations, documents, and programs. To validate these factors a sample of 432 elementary school principals was given the list of factors of which 8 were confirme...

Le trichobezoar gastrique est une affection rare (un peu plus d’une dizaine de cas dans la littérature), qui affecte essentiellement des jeunes filles perturbées par des désordres psychologiques. Les auteurs rapportent deux cas de jeunes filles, hospitalisées pour volumineuse masse épigastrique. La fibroscopie gastrique a posé le diagnostic de trichobezoar. Une exérèse chirurgicale a été réalis...

Polar codes approach channel capacity provably and empirically are thereby a constituent code of the 5G standard. Compared to low-density parity-check codes, however, performance short-length polar have rooms for improvement that could hinder its adoption by wider class applications. As part program addresses issue at short length, it is crucial understand how fast binary memoryless symmetric c...

A critical role of the subthalamic nucleus (STN) in the control of movement has been proposed based on the observations that its lesion or high-frequency stimulation, aimed at altering its activity, is effective in alleviating clinical features of Parkinson’s disease (Bergman et al,. 1990; Bennazouz et al., 1993; Pollak et al., 1993, Benazzouz et al., 2000). Indeed, overactivity of the subthala...

The talk presents the discipline of Mathematical Knowledge Management (MKM), which studies the possibility of computersupporting and even automating the representation, cataloguing, retrieval, refactoring, plausibilization, change propagation and in some cases even application of knowledge. Mathematics is a suitable test domain, as mathematical language is intrinsically rich in structure, rigor...