Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-12-30
pubmed:abstractText
Experiments were performed with bovine blood to study the response of the plasma/cell interface position to pumping rate adjustments in two single-stage (SS I and SS II) cell separation chambers. Standard clinical instrumentation and equipment and on-line computer interfacing were used to monitor and control the interface position. The data provided a quantitative description of its dynamics in the SS I and the SS II chambers. In the SS I chamber, adjustments in the flow rate caused the interface to move very slowly and in a complex manner from one steady-state operation position to another. Such behavior made both manual and computer-controlled operation very difficult. By contrast, the SS II chamber was inherently unstable for most operating conditions. We demonstrated, however, that a feedback controller could be used easily to adjust or maintain the interface position, and this system moved from one steady-state operating condition to another 10 times as fast as the system using the SS I chamber. Also, the manner in which the controller allowed the system to respond to operator requests was much simplier than that for the SS I system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0041-1132
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
588-92
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Interface dynamics in a centrifugal cell separator.
pubmed:affiliation
Chemical Engineering Department, Washington State University, Pullman.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't