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31.
Yuriy Kovalenko Nikolai B. Gorev Inna F. Kodzhespirova Rogelio álvarez Eugenio Prokhorov Alfredo Ramos 《Canadian Metallurgical Quarterly》2010,136(5):331-335
A procedure for the experimental convergence evaluation of a hydraulic-network solver is proposed, based on using genetic algorithms to search for network parameter values that maximize the number of iterations of the hydraulic-network solver under test. The efficiency of the method is demonstrated by the example of convergence evaluation for the EPANET hydraulic simulator. Examples of a pipe network and of combinations of parameter values for which the static solver of the simulator fails to converge in a reasonable number of iterations are given. The features of the EPANET 2.00.12 solver responsible for loss of convergence are discussed. New criteria for the automatic start of solution damping aimed at improving the convergence of the solver are proposed. The better convergence of the EPANET solver modified in accordance with these criteria is confirmed by the random and the proposed search-based testing method. 相似文献
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AS Gorev 《Canadian Metallurgical Quarterly》1998,24(6):42-47
The Continuum of Care clinical experience was developed to provide future nurses with practice in a managed care environment. Students see how the critical care patient's needs change during the recovery process and assist the patient with the transition to self-care at home. Patient and student evaluations indicate the experience increases students' understanding of the role of the nurse in managed care while facilitating patients' transition to the self-care environment. 相似文献
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I. N. Flerov I. M. Iskornev H. V. Gorev L. V. Kirensky 《Ferroelectrics Letters Section》1983,44(8):235-239
The specific heat of pseudoproper ferroelectric-ferroelastic CsLiWO4 was measured in the temperature range from 90 to 305 K. The enthalpy and entropy changes at phase transitions were determined. Interpretation of the data associated with the transition Go → G1 is done in terms of the thermodynamical theory. 相似文献
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