Abstract Drying process has been employed since ancient times to preserve agricultural products by reducing the moisture content. Solar dryer is one of most commonly used dryers due its availability, reliability, and environmentally friendly nature. It practical in rural areas solar can be fabricated with a simple design. Despite potential, designing long-term, feasible challenging without good...

The disposal of Waste Activated Sludge is a major problem. The paper presents several disposal routes. The ultimate steps in these routes are indirect drying and subsequent incineration. Although the design of the indirect dryers is straightforward from a required heat input, operating temperature difference between sludge bed and heating medium and the heat transfer coefficient, this coefficie...

Janet L. Poole. MA, OTR/L, is Assistant Professor, Program in Occupational Therapy, University of Pittsburgh. A lthough a variety of assistive devices are available to disabled persons for hair care, a review of health care equipment catalogues and the occupational therapy literature failed to reveal any devices designed specifically for drying hair. In particular, persons with upper extremity ...