since mammography images are in low-contrast, applying enhancement techniques as a pre-processing step are wisely recommended in classification of the abnormal lesions into benign or malignant. a new kind of structural enhancement is proposed by morphological operator which introduces an optimal gaussian kernel primitive, the kernel parameters are optimized the use of genetic algorithm­­. we al...

This paper summarizes the effort funded by the United States Air Force Research Laboratory at Wright Patterson Air Force Base to identify the problem structural areas on the F-15 and recommend appropriate solutions with the development of new technology. Recent modifications to the F-15 airframe structure have taken place or are under consideration to reduce honeycomb water corrosion, reduce ma...

the present study investigated comparatively the impact of two types of input enhancement (i.e. textual vs. compound enhancement) on developing grammar ability in iranian efl setting. sixty-five female secondary high school students were selected as a homogenous sample out of about a 100-member population based on nelson language proficiency test. then, their grammar ability was measured based ...