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Number of items: 57
Date joined: Aug 14 2018

Saeed Langarudi's Work

GEO-SD303

Fishbanks

sim1 run

Political Economy of Resource Rich Nations

sim7 runs
Economics Education

Villagers

sim12 runs

Farming Game demo

sim5 runs
Environment Science Economics Ecology Education

Fish Banks, Ltd.Game

In the Fish Banks, Ltd. game (originally developed as a board game by Professor Dennis L. Meadows in ... Read more
In the Fish Banks, Ltd. game (originally developed as a board game by Professor Dennis L. Meadows in 1986), teams of players manage their own fishing companies. At the beginning of the game, each fishing company has equal financial resources and fishing fleet. Each company has the same operating costs and technology. At the beginning of every simulated year, the companies make decisions about building, buying, and/or selling ships, whether to fish or not, and how far to send their fleet for fishing. The game's objective is to maximize total assets at the end of the simulation. The game developed here is a modified version of the Meadows' game as explained in the game rules.
sim355 runs
Environment Economics Ecology Education Dennis Meadows

Crop Selection Dynamics

This model replicates dynamics of crop selection in an agricultural system in which there are two gr ... Read more
This model replicates dynamics of crop selection in an agricultural system in which there are two groups of farmers: upstream and downstream. Upstream farmers have immediate access to surface water but downstream farmers can use surface water that is remaining after upstream use. Both groups of farmers grow two types of crops. Crop characteristics as well as other assumptions of the model could be changed by model users. Different scenarios for water availability are also available to the users.
sim146 runs
Environment Science Economics Education crop selection

A Water SD Example

This is a simple, working example of system dynamics model which was used as a supporting material i ... Read more
This is a simple, working example of system dynamics model which was used as a supporting material in my seminar in "What is System Dynamics?" on Feb 24th at Water Resources Research Institute, New Mexico State University.
sim2 runs
Environment Science Economics Education water

insurgency

model163 downloads
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oil

model233 downloads
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SI

model231 downloads
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fish2

model213 downloads
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trend

model216 downloads
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integ

model186 downloads
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ppp

model198 downloads
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pp3

model198 downloads
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test

model198 downloads
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pp

model217 downloads
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Theil

model214 downloads
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houses_original

model220 downloads
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myrdal

model366 downloads
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Economics

fish_population

model204 downloads
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Bee Population

model247 downloads
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inventory

model224 downloads
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fish

model222 downloads
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commodity

model230 downloads
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delay

model202 downloads
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supply_demand

model247 downloads
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hilltopping

model278 downloads
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stock_flow

model222 downloads
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urban1

model187 downloads
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Deer Population

model197 downloads
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growth game

model189 downloads
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integration

model227 downloads
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infews

model225 downloads
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peak_end

model237 downloads
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world

model223 downloads
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hume

model215 downloads
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commodity_eq

model235 downloads
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A Simple Water Model

model750 downloads
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oil_production

model221 downloads
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fbs

model365 downloads
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pp2

model214 downloads
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noise

model214 downloads
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hog

model231 downloads
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oil2

model217 downloads
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houses

model212 downloads
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Uploading a Bundle from Zip

Instead of creating bundles, categories, and assemblies one by one, you can upload a single zip file that contains all of your bundle's content. To create your zipped bundle, make a folder with your bundle's name and add subfolders with your categories' names. The folder tree should have the same structure that you want the categories to have in your bundle. Place your assembly .stmx files in the appropriate category folders, then zip your bundle folder and upload it using the Upload Bundle from Zip link above.

Assemblies, Bundles, and Categories

Assemblies are self contained models that demonstrate common ways to connect together building blocks and that can be used as parts of other models. This is analogous to using prefabricated wall and roof pieces to construct a house.

Bundles are groups of assemblies with a common use or theme. For example, a Health Care bundle might contain a variety of assemblies that aid in creating health care models. When you download assemblies from the isee Exchange™, you download an entire bundle, rather than individual assemblies.

Categories are subgroups of assemblies within a bundle. For example, a Health Care bundle might contain a Funding category for assemblies related to the management of hospital funds. All assemblies must be assigned to a category—they cannot be assigned to the root of a bundle.

Assemblies, bundles, and categories can be created and uploaded to the isee Exchange™ via the options on the Manage My Assemblies page. To learn more, visit our help pages, or take our assemblies tutorial.

Sim App (Sim)

An interface that allows users to interact with a model.

Image of a sim

Sim apps allow users to interact with a model using buttons, sliders, knobs, tables, graphs, and storytelling. These interactions help users understand how parts of a system interact.

Interfaces are created by model authors in the Stella desktop software and can be uploaded to the isee Exchange™.

Model

A diagram that represents how elements in a system influence one another.

Image of a model

Models are mathematical representations of how elements in a system are connected and interact (e.g., ecosystems, organizations, supply chains). When running models on the isee Exchange™, results can be viewed in output devices like graphs and tables.

Models appear in the isee Exchange™ directory when authors upload them from the Stella® desktop software or create them with Stella Online™.

Causal Loop Diagram (CLD)

A map that represents the feedback structure of a system.

Image of a CLD

CLDs are high-level maps that represents the feedback structure of a system and easily communicate the essence of a model. They appear in the isee Exchange™ when authors upload them from the Stella desktop software or create them with Stella Online™.