Search found 5 matches

by "j-d"
Wed Sep 08, 1999 6:28 am
Forum: SD Mailing List Archive
Topic: Disaster recovery management
Replies: 3
Views: 22071

Disaster recovery management

Professor Rob Olshansky at the Univ. of Illinois at Urbana-Champaign (Dept of Urban and Regional Planning), my alma mater, did a lot of work in this area (post-earthquake recovery). Not SD, but you may still like to contact him if interested. It was done for/after the big California earthquakes. www...
by "j-d"
Tue Sep 07, 1999 1:43 pm
Forum: SD Mailing List Archive
Topic: Algorithm: derivation of ordinary differential equation inoS
Replies: 1
Views: 2618

Algorithm: derivation of ordinary differential equation inoS

Dear Marion Prof. Coyle and Jim Hines responded to your second case, with the expression "(1-population/capacity)*population" in your email as not being a rate. This stock-flow distinction is extremely important and is often misapplied; of course you can use this expression as a part of a ...
by "j-d"
Wed Sep 01, 1999 2:06 am
Forum: SD Mailing List Archive
Topic: Compartmental System
Replies: 11
Views: 8978

Compartmental System

This is a very interesting problem. I have a few comments and then some suggestions as to how you can solve it, with a reference. (1) First, it seems to me that some elements of the problem are still not well-defined. Is there only one product flowing from one compartment to the other or are there >...
by "j-d"
Tue Jul 06, 1999 3:48 pm
Forum: SD Mailing List Archive
Topic: SD vs GIS
Replies: 5
Views: 5745

SD vs GIS

Contact Prof. Bruce Hannon at the University of Illinois at Urbana-Champaign. He (and Jim Westervelt) had done some neat work with (if I remember correctly) the Florida Everglades, breaking the region down into small parts (using GRASS, a GIS) and having a Stella model for each part. So the Stella m...
by "j-d"
Fri Jun 11, 1999 2:39 am
Forum: SD Mailing List Archive
Topic: S Shaped growth followed by decline
Replies: 8
Views: 8677

S Shaped growth followed by decline

In reply to Johns thought-provoking questions on S-shaped growth followed by a decline: (First, for a realistic example of how this may happen, please check out the story Jesse Liberty provides in his book "Clouds to Code - A Case Study in Application Development with UML, Design Patterns, and ...