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Massachusetts Institute of Technology


Where the sidewalk ends

A new open-source tool called TILE2NET uses aerial imagery and image-recognition to create complete maps of sidewalks and crosswalks. The tool has been trained on 20,000 aerial images from Boston, Cambridge, New York City, and Washington, recognizing 90% or more of all sidewalks and crosswalks in these cities.

SourceMassachusetts Institute of Technology·JournalComputers Environment and Urban Systems·DateMar 15, 2023

“Spleen-on-a-chip” yields insight into sickle cell disease

Researchers developed a microfluidic device to model the spleen's filtration function in patients with sickle cell disease. The study found that low oxygen levels can cause the spleen's filters to become clogged, while boosting oxygen levels can unclog them, potentially explaining how blood transfusions help patients.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJan 30, 2023

Moving water and earth

A new understanding of how particle shape controls grain flow can help engineers plan for downstream impacts of restoring a river or removing a dam. The MIT team's better formula estimates bed load transport by considering a grain's drag and friction, rather than its exact shape.