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powder bed

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powder bed
Etymology: L, pulvis, dust; AS, bedd
a treatment in which large areas of a patient's body are kept in contact with a powdered medication for a certain time. It is usually repeated three times a day, as necessary. A bed that has already been made is prepared by placing a full-sized sheet lengthwise over the linen. The powder is spread on the sheet from a shaker. The patient lies supine on the powdered sheet. Areas of skin that are apposed are separated with gauze, and powder is shaken over the patient's body. The powdered sheet is then wrapped around the limbs and the trunk from the side to keep the powder in contact with the body. The patient is virtually helpless during treatment and requires close attention from the nurse.


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In a subsequent work (4), Throne assumed the powder bed to be static and neglected the heat transfer to the circulating powder pool.
This video covers the two primary classes of direct metal systems: powder bed technologies and powder deposition technologies.
The volume includes discussion of particle characterization and measurement, fundamental properties of particles from optical properties to mechanochemistry, fundamental properties of powder beds from adsorbtion to vibrational and acoustic characteristics, and particle generation and fundamentals ([c]20072005 Book News, Inc.
 
 
 
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