OBJECTIVES To determine the efficacy of skin protection wheelchair seat cushions in preventing pressure ulcers in the elderly nursing home population. DESIGN Clinical trial with participants assigned at random to a skin protection or segmented foam cushion. Two hundred thirty-two participants were recruited between June 2004 and May 2008 and followed for 6 months or until pressure ulcer incid...

This paper discusses a modular wheelchair cushion system intended for patients at moderate or low risk for developing pressure sores. With the use of components with different mechanical and physical properties the modular cushion produces improved performance compared with cushions comprising the individual components alone. In addition to achieving clinically acceptable interface pressures, t...

Due to the increasing use of renewable energy sources, and counter effects fossil fuels, dispatchable hydro power can be used for balancing load generation from intermittent sources (solar wind). During higher percentage change in acceptance or rejection grid, operations surge tanks are crucial terms water mass oscillation hammer pressure, avoid wear tear actuators other equipment, such as turb...