Modern Applied Science, Vol. 3, No. 5, May 2009, all in one file, Part B
Modern Applied Science
One of the most challenging scientific industrial courses in recent years is intelligent defect detection. Non Destructive Testing (NDT) techniques are the most useful methods due to their efficiency and low cost. Models were developed to determine surface-breaking defects along the applied field when using the magnetic flux leakage (MFL) non-destructive technique. The theoretical model fits the experimental MFL results from simulated defects. For MFL sensors, the normal magnetic leakage field
... s subsequently used for evaluation of defects. Permeability variations were neglected by employing a flux density close to sample saturation. Three different defect geometries were experimentally investigated and the validity of the analytical model was verified. Different Feature extractor functions are applied in this paper to yield fast decision and more accurate. Indeed more accuracy is because of decision on different features that yields by employing two kinds of feature extractors, PCA and DCT. By hiring a BELBIC (Brain Emotional Learning Based Intelligent Controller) controller on the extracted features, the results are more accurate in some cases. Linear Discriminate Analysis (LDA) is another helpful instrument that is employed precise decision. All feature extractions LDAs and Multilayer perceptron (MLP), are methods for identifying erosion defects are described and employed in this paper. Great accuracy rate in compare between results of related approaches suggests that this Method can be used as an algorithm of MFL data interpretation technique. . "An architecture of self-organizing map for temporal signal processing and its application to a Braille recognition task" Wiley Periodicals, Inc. Syst Comp Jpn, 38 (3) : 62-71, 2007. Hwang J H and Lord W. (1975). J. Testing Eval. 3 pp.21-5. Ken cabeen, peter gent. "Image compression and the discrete cosine transform" math45 collage of Redwoods, pp1,2. ." Detection and estimation of oil gas pipeline Corrosion defects "http://corporate.coventry.ac.uk/conten R. Christen, A. Bergamini and M. Motavalli, (2004). Three-dimensional localization of defects in stay cables using magnetic flux leakage methods, Abstract By researching the mothed of iris identification integrating the iris features with the secure network communication, this paper designs a new Iris-Based Network Authentification System. The system can complete access control in security. The system has many merits, such as finer security, high identification rate, and so on. In computer network applications, especially in e-commerce applications, the computer's identity authentication method which can effectively prevent fake identity log in is very important technology. However, the biological features of humanity like appearance, fingerprint, iris, sound, gait, and signature, etc, because they have the characteristics of uniqueness, invariability and conveniency, ect, and they can be gathered on real-time once identity authentication will be carried on,thus the case of password being forgotten and ID being stolen totally eliminated. So the identity authentication based biological features is more securing. The iris has many unique features such as "can not transform, difficult to camouflages, non-offensive (or non-contact type)" (Daugman, 1998, p.33-39), etc, and the iris recognition technology is the highest precision of the biometric technology. (Tian,2005,p.230-232, 257).Therefore the iris recognition will become an important ways of identity recognition in the future. Abstract A bacterial consortium was raised to treat the textile dying effluent. The mixed culture for biobleaching was isolated from the sludge and dye effluent contaminated soil from ETP houses. Among the several isolated representatives' genera, pseudomonas pudita and Bacillus subtillus were found to be the potential strains with synergetic mode of biobleaching. 80-90% of decolorization along with 2-3 fold decrease in BOD and COD was observed using the bacterial consortium. This study exemplified the treatment feasibility of bacterial consortium over an immobilized packed bed as a biobleaching agent for treating textile dye effluents.