Pang-Hsu Liu

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This paper develops a maintenance strategy for repairable products that combines imperfect maintenance actions at pre-scheduled times and minimal repair actions for failures. Under a power law process of failures, an expected total cost is developed that involves the sum of the total cost of imperfect preventive maintenances and the expected total cost of(More)
A 53-year-old female with a history of cholecystectomy presented with right lower quadrant abdominal pain for 2 days. She was afebrile with no loss of appetite or other gastrointestinal symptoms. Physical examination showed right lower quadrant abdominal tenderness with rebounding pain and hypoactive bowel sounds. Laboratory results showed no abnormalities(More)
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