{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,6]],"date-time":"2022-04-06T02:41:11Z","timestamp":1649212871580},"reference-count":18,"publisher":"World Scientific Pub Co Pte Lt","issue":"04","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Model. Simul. Sci. Comput."],"published-print":{"date-parts":[[2013,12]]},"abstract":"<jats:p> This paper deals with the structural analysis problem of dynamic lumped process high-index differential algebraic equations (DAE) models. The existing graph theoretical method depends on the change in the relative position of underspecified and overspecified subgraphs and has an effect to the value of the differential index for complex models. In this paper, we consider two methods for index reduction of such models by differentiation: Pryce's method and the symbolic differential elimination algorithm rifsimp. They can remedy the above drawbacks. Discussion and comparison of these methods are given via a class of fundamental process simulation examples. In particular, the efficiency of Pryce's method is illustrated as a function of the number of tanks in process design. Moreover, a range of nontrivial problems are demonstrated by the symbolic differential elimination algorithm and fast prolongation. <\/jats:p>","DOI":"10.1142\/s1793962313420087","type":"journal-article","created":{"date-parts":[[2013,6,25]],"date-time":"2013-06-25T09:00:46Z","timestamp":1372150846000},"page":"1342008","source":"Crossref","is-referenced-by-count":2,"title":["STRUCTURAL ANALYSIS OF HIGH-INDEX DAE FOR PROCESS SIMULATION"],"prefix":"10.1142","volume":"04","author":[{"given":"XIAOLIN","family":"QIN","sequence":"first","affiliation":[{"name":"Chengdu Institute of Computer Applications, CAS, Chengdu 610041, P. R. China"},{"name":"Department of Mathematics, Sichuan University, Chengdu 610064, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"WENYUAN","family":"WU","sequence":"additional","affiliation":[{"name":"Chongqing Institutes of Green and Intelligent Technology, CAS, Chongqing 401122, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"YONG","family":"FENG","sequence":"additional","affiliation":[{"name":"Chengdu Institute of Computer Applications, CAS, Chengdu 610041, P. R. 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