Detecting power line insulator automatically and analyzing their defects are vital processes in maintaining power distribution systems. In this work, a rotation invariant texture pattern named rotation invariant local directional pattern (RILDP) is proposed for representing insulator image. For this at first, local directional pattern (LDP) is applied on image which can encode local texture pat...

QUESTION Do the self-reported aggravating activities of people with chronic non-specific low back pain move the spine in a consistent direction? DESIGN Cross-sectional observational study. PARTICIPANTS 240 people with chronic non-specific low back pain. OUTCOME MEASURE The self-reported aggravating activities from the Patient Specific Functional Scale were classified as flexion, extension...

Directional imbibition of oils (hexadecane, tetradecane, and dodecane) and water is demonstrated on a chemically patterned silicon micropillar array. Four different directional imbibition types are shown: unidirectional, two types of bidirectional and tridirectional imbibition. The surfaces consist of a silicon micropillar array with an overlaid surface chemistry pattern. This configuration lea...