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tutorial 1

Lei Yan
This shows that the population of Heaven and Hell (assuming no other alternatives) keeps pace with the  current world population​.
  • 2 years 9 months ago

week 4 tut

Lei Yan
This is a Pork Consumption model. It is an independent model but can be combined with a Pork Production model to produce a simplified version of the Hog Commodity Cycle model by Meadows.
  • 2 years 9 months ago

week 4 pork consumption

Lei Yan
This is a Pork Consumption model. It is an independent model but can be combined with a Pork Production model to produce a simplified version of the Hog Commodity Cycle model by Meadows.
  • 2 years 9 months ago

week 4 ex2

Lei Yan
Recruits for marine fighter pilots sign up for 10 years after which they are retired. It takes a qualified pilot one year to train a new fighter pilot. During this year the instructor cannot be available for duty as a fighter pilot.
  • 2 years 9 months ago

week 4 lecture

Lei Yan
Recruits for marine fighter pilots sign up for 10 years after which they are retired. It takes a qualified pilot one year to train a new fighter pilot. During this year the instructor cannot be available for duty as a fighter pilot.
  • 2 years 9 months ago

week 2 tutorial 2.2 q2

Lei Yan
Model is similar to the basic inventory model found in many System Dynamics books. It includes a third-order delay for Deliveries to arrive after Order.
  • 2 years 9 months ago

tutorial week 2.2

Lei Yan
This is a first go at a simple inventory system. No delays between Orders and Deliveries. Inventory fails to attain the level of Desired Inventory.

Inventory

  • 2 years 9 months ago

week 1

Lei Yan
This compares the trajectories of density-dependent growth and exponential growth. The time series of density dependent growth during the early stages is identical to exponential growth. Time series without understanding the system structure can mislead.
  • 2 years 9 months ago

Clone of Marine Pilots 2

Lei Yan
Recruits for marine fighter pilots sign up for 10 years after which they are retired. It takes a qualified pilot one year to train a new fighter pilot. During this year the instructor cannot be available for duty as a fighter pilot.
  • 2 years 9 months ago

Clone of Pork Consumption

Lei Yan
This is a Pork Consumption model. It is an independent model but can be combined with a Pork Production model to produce a simplified version of the Hog Commodity Cycle model by Meadows.
  • 2 years 9 months ago

Clone of Inventory_2

Lei Yan
Model is similar to the basic inventory model found in many System Dynamics books. It includes a third-order delay for Deliveries to arrive after Order.
  • 2 years 9 months ago

Clone of Inventory-1a

Lei Yan
This is a first go at a simple inventory system. No delays between Orders and Deliveries. Inventory fails to attain the level of Desired Inventory.

Inventory

  • 2 years 9 months ago

Clone of Population of Heaven

Lei Yan
This shows that the population of Heaven and Hell (assuming no other alternatives) keeps pace with the  current world population​.
  • 2 years 9 months ago

Clone of Density-dependent growth

Lei Yan
This compares the trajectories of density-dependent growth and exponential growth. The time series of density dependent growth during the early stages is identical to exponential growth. Time series without understanding the system structure can mislead.
  • 2 years 9 months ago

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