Because of the current situation where stability research filled-slope reinforced by a frame with prestressed anchor-plates lags behind actual engineering application, based on ultimate balance theory, calculation formulas factor under four arc slip surface filled-slopes are derived using improved Bishop method; corresponding search method most dangerous is given and pullout force improved. Bas...

L anguage impairment with associated comprehension deficits results in a more severely disabling condition with a poorer long-term prognosis than does expressive language impairment (Bishop & Edmundson, 1987a, 1987b; Silva, 1980; Silva, McGee, & Williams, 1983; Silva, Williams, & McGee, 1987). Children with both comprehension and expressive language impairment are at greatest risk for having co...