Solid pseudopapillary neoplasm of pancreas in a 12-year-old girl

A-12-year old girl presented with acute exacerbation of mild upper abdominal marine corps combat instructor ribbon pain and nausea associated with weight loss.Subsequent work up revealed raised serum lipase and a bulky (7.8 cm x 4.9 cm x 2 cm) mass involving the head of the pancreas with areas of necrosis and cystic degeneration and peripheral rim

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Nonlinear Controllers Based on Exact Feedback Linearization for Series-Compensated DFIG-Based Wind Parks to Mitigate Sub-Synchronous Control Interaction

The increasing penetration of wind power in the grid has driven the integration of wind farms with power systems that are series-compensated to enhance power transfer capability and dynamic stability.This may lead to sub-synchronous control interaction (SSCI) problems in series-compensated doubly-fed induction generator (DFIG)-based wind farms.To m

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