Recently, a renewed interest arises in the application of nanotechnology for the upstream petroleum industry. In particular, adding nanoparticles to fluids may drastically benefit enhanced oil recovery and improve well drilling, by changing the properties of the fluid, rocks wettability alteration, advanced drag reduction, strengthening the sand consolidation, reducing the inter-facial tension and...

The American Heart Association's Committee on Grading Lesions of the Council on Arteriosclerosis has devised a method of grading the severity of atherosclerosis in human coronary arteries and aortas. The method uses two series of color photographs of arteries arranged in increasing severity of atherosclerosis. The Committee tested the method for inter-observer reproducibility by exhibiting the ...

background: in regard to enhancement of efficiency and productivity of an organization in terms of teamwork, it is necessary to shift to team-centered approach for increasing confidence in health care systems. therefore it is needed to assess effect of the academic training on students' viewpoint in team working. methods: this was a cross-sectional study and was done in kurdistan universit...

De-centralized traffic information systems based on inter-vehicle communication have drawn increasing attention in recent years. In this paper, based on the assumption that inter-vehicle communication is instantaneous relative to vehicle movement, we study multihop connectivity between two equipped vehicles subject to arbitrary distribution patterns of vehicles, market penetration rates, and tr...

As the needs for interconnections of processes in different companies or departments are so increasing and companies try to realize business processes across organizational boundaries, the correctness issues of inter-organizational workflow definition is getting more important. In this paper, we develop community process definition language(CPDL) for inter-organizational workflow specification....

We describe a simple one-person card game, patience sorting. Its analysis leads to a broad circle of ideas linking Young tableaux with the longest increasing subsequence of a random permutation via the Schensted correspondence. A recent highlight of this area is the work of Baik-Deift-Johansson which yields limiting probability laws via hard analysis of Toeplitz determinants.

In this paper, we consider parallel algorithms for the patience sorting and the longest increasing subsequence. These two problems are related each other and are not known to be in the class NC or P -complete. We first propose two algorithms for the patience sorting of n distinct integers. The first algorithm runs in O(m(np + logn)) time using p processors on the EREW PRAM, where m is the numbe...

In this review paper we consider the polynuclear growth (PNG) model in one spatial dimension and its relation to random matrix ensembles. For curved and flat growth the scaling functions of the surface fluctuations coincide with limit distribution functions coming from certain Gaussian ensembles of random matrices. This connection can be explained via point processes associated to the PNG model...

In recent work of Baik, Deift and Rains convergence of moments was established for the limiting joint distribution of the lengths of the first k rows in random Young tableaux. The main difficulty was obtaining a good estimate for the tail of the distribution and this was accomplished through a highly nontrival Riemann-Hilbert analysis. Here we give a simpler derivation. The same method is used ...