In metallurgy the quality of the liquid metal has the biggest influence on the quality of the final products. The amount of metallic and non-metallic impurities has great impact on the consecutive stages of technological processes such as: casting, plastic working, heat treatment, etc. That is why the refining process is considered to be one of the most important parts of the basic technologica...

There are several methods introduced to refining the accuracy of Photonic structures. No one has as yet studied the effect of Neural Networks in refining the accuracy of the photonic structure of the Photonic Crystal Fibers. In this paper we use The simulation that will be conducted using artificial neural networks to refining the accuracy of the photonic crystal fibers &.Artificial neural netw...

Because of small surface area to volume ratios nanoscale devices can exhibit dominant surface forces that can quickly degrade unlubricated contacting surfaces. While fluorinated materials have been widely used as lubricants, because of their low critical surface tension and high thermal and mechanical stability, fluorinated monolayer coatings, which are suitable for lubricating nanoscale device...

The total hydrocarbon content removal in nutrient amendment and natural attenuation at day 56 showed percentage removal of 89 and 74, respectively. Total heterotrophic and total hydrocarbon utilizing bacterial count increased progressively in all the treatment options. The nutrient amendment showed greater removal of the hydrocarbon pollutants. The physicochemical analyses at day 56 were within...

a crude biosurfactant mixture was produced in a 1.4 l tubular reactor by a mixed culture; afterthe thermal treatment of the whole culture an increase in emulsification activity and surface tension wasobserved, with a main effect on the first one. the emulsification index of the mixture obtained was of 60.4 %. the crude mixed biosurfactant was used to enhance hydrocarbon biodegradation of intemp...

The study of protein subcellular localization is important to elucidate protein function. Even in well-studied organisms such as yeast, experimental methods have not been able to provide a full coverage of localization. The development of bioinformatic predictors of localization can bridge this gap. We have created a Bayesian network predictor called PSLT2 that considers diverse protein charact...

Abstract interpretation techniques prove properties of programs by computing abstract fixpoints. All such analyses suffer from the possibility of false errors. We present three techniques to automatically refine such abstract interpretations to reduce false errors: (1) a new operator called interpolated widen, which automatically recovers precision lost due to widen, (2) a new way to handle dis...

Several conceptual points are made concerning communication in games of asymmetric information. Equilibrium refinements of Sender-Receiver cheap-talk games that are based on the concept of a putative equilibrium, and which rely on the presence of a rich language with literal meanings, are discussed. Three nested criteria are proposed: strong announcement-proofness, announcement-proofness, and w...

Principal component analysis (PCA) is a well-established tool for making sense of high dimensional data by reducing it to a smaller dimension. Its extension to sparse principal component analysisprincipal component analysis!sparce, which provides a sparse low-dimensional representation of the data, has attracted alot of interest in recent years (see, e.g., [1, 2, 3, 5, 6, 7, 8, 9]). In many app...

Reasoning about concurrent programs can be very difficult due to the possibility of interference. The fundamental insight of Rely-Guarantee thinking is that developing concurrent designs can only be made compositional if the development method offers ways to record and reason about the interference that is inherent in concurrency. The original presentation of rely-guarantee rules used keywords ...