Zhenghua Yang's Profile
Number of items: 24
Date joined: Jul 04 2021
I ❤️ DATA & MODEL.
Zhenghua Yang's Work
#1
Merry Christmas
A dynamic Christmas tree for everyone.
sim
⋮ 4 runs
fun
animation
#2
Physician's Behavior Laboratory Experiment
A sample to test.
sim
⋮ 26 runs
Economics
Health
#3
Holiday Greetings
MERRY CHRISTMAS & HAPPY NEW YEAR
sim
⋮ 12 runs
#4
HIV immune viral dynamics
This is an interactive learning environment designed for people to learn HIV and more importantly to
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This is an interactive learning environment designed for people to learn HIV and more importantly to enhance understaning of treatment adherence.
sim
⋮ 65 runs
Biology
Education
#5
Two-dimensional Dynamical Systems
Some interactive examples of 2D Systems.
sim
⋮ 4 runs
Maths
#6
Cost-Effectiveness Analysis of Sugar-Sweetened Beverage Tax Policy in Norway
Health economic evaluation
sim
⋮ 60 runs
Science
Economics
Health policy
#7
Convergence OR Divergence
An agent-based simulation model to explore the occurance of "social conformity".
sim
⋮ 20 runs
Psychology
microsimulation
#8
Solar system simulator
This is a simple solar system simulator, which is made of animation objects.
sim
⋮ 50 runs
Science
Space Physics
SVG
#9
Economic evalution with dynamic transmission modeling
An user-friendly interface built for dynamic transmission modeling lab seminar in order to enhance u
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An user-friendly interface built for dynamic transmission modeling lab seminar in order to enhance understanding of feedbacks in dynamic models.
sim
⋮ 33 runs
Economics
Education
#10
Simulation of parametric equation
Parametric equation is very powerful and flexible to depict a veriety of curves or patterns.
sim
⋮ 16 runs
Science
Maths
#11
Wildfire management
Interesting insights into the cyclical patterns in wildfires through dynamic simulation.
sim
⋮ 28 runs
Environment
Ecology
#12
Agent-based epidemiological model
A stochastic SIR model simulation based on interactions between agents who are neighbours.
sim
⋮ 90 runs
Science
Health
microsimulation
#13
Covid-19 Long-term Policy Design
A model-based interface is developed, according to a research article published on <Science> (DOI: 1
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A model-based interface is developed, according to a research article published on <Science> (DOI: 10.1126/sciadv.abg2243). The underlying mathematical model offers a way to design long-term health policy in front of the Coronavirus pandemic and to test our own hypotheses. Anyway, we need a solution in real environment.
sim
⋮ 21 runs
Science
Covid
Health
Policy
#14
Simple Segmentation Tool (SST)
A sample illustration of "Simple Segmentation Tool (SST)" developed at Duke-NUS Medical School©.
Mo
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A sample illustration of "Simple Segmentation Tool (SST)" developed at Duke-NUS Medical School©.
More details refer to the following link: https://www.duke-nus.edu.sg/hssr/simple-segmentation-tool
sim
⋮ 54 runs
Education
Health
Medicine
#15
Simulation of parametric equations (2)
The second series of parametric equations to explore the beautiful curves from Maths!
sim
⋮ 10 runs
Science
Maths
#16
All is about diabetes
This is an interface for the topic on diabetes. It includes brief introduction, data visualization,
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This is an interface for the topic on diabetes. It includes brief introduction, data visualization, model simulation and summary & reference. Hopefully, players can learn some useful insights from the interface.
sim
⋮ 31 runs
Biology
Education
Health
#17
Scientific Comments on SIR models
A model-based assessment on the recently published <Nature> scientific report - "Revisiting the stan
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A model-based assessment on the recently published <Nature> scientific report - "Revisiting the standard for modeling the spread of infectious diseases" by Michael Nikolaou. DOI: https://doi.org/10.1038/s41598-022-10185-0
sim
⋮ 39 runs
Epidemiology
SIR
Delay
#18
Data visualization of Covid-19 vaccine distribution
This is an animated simulation model to exhibit how Covid-19 vaccines have been distributed across U
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This is an animated simulation model to exhibit how Covid-19 vaccines have been distributed across United States from March to October, 2021.
sim
⋮ 51 runs
SVG
Health
US
#19
The life of a tree
A SVG-based illustration of the tree whose leaves grow and fall dynamically over a year.
sim
⋮ 10 runs
Environment
Biology
Fun
#20
Salmon simulator
An interface designed for simulating salmon harvesting over 10 years. It can be used to test your ab
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An interface designed for simulating salmon harvesting over 10 years. It can be used to test your ability to achieve sustainable fishing resource management in the long run. The underlying model is from <Modeling the environment>.
sim
⋮ 11 runs
Environment
Ecology
Sustainability
#21
Simulation of LOVE
This is an interesting simulation game of LOVE!
sim
⋮ 62 runs
maths fun
#22
Save more tomorrow
This is a simulation game designed for people to understand the dynamics of balance, the reinforceme
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This is a simulation game designed for people to understand the dynamics of balance, the reinforcement effect of positive feedback loop, the choices of investing projects, the effectiveness of "Automatic Enrollment" policy, and sensitivity analysis.
Hopefully, people can gain insights from the flight simulator and save a bit more tomorrow if they do poorly at present.
sim
⋮ 65 runs
Business
Economics
Education
Behavior economics
#23
Simulation model for mechanisms underlying ultradian oscillations of insulin and glucose
To determine whether the oscillations could result from the feedback loops between insulin and gluco
... Read more
To determine whether the oscillations could result from the feedback loops between insulin and glucose, a parsimonious mathematical model including the major mechanisms involved in glucose regulation was developed. This model comprises two major negative feedback loops describing the effects of insulin on glucose utilization and glucose production, respectively, and both loops include the stimulatory effect of glucose on insulin secretion. (Referece: doi: 10.1152/ajpendo.1991.260.5.E801.)
sim
⋮ 24 runs
Biology
Mathematical model
#24
Public debt crisis in US
We can only reduce debt in two ways - either increase revenue or reduce expenditure. For a long term
... Read more
We can only reduce debt in two ways - either increase revenue or reduce expenditure. For a long term, US public debt has increased a lot which is dangerous and unsustainable. Therefore, the Democratic party proposes to tax billionaires in order to reduce public debt. The question is wherther the policy is effective in solving the debt crisis in US? You can explore the answer by yourself.
sim
⋮ 23 runs
Business
Economics
tax
policy
sustainability
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.
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.
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.
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™.