6 papers
Non-Destructive Detection of Early Drought Stress via Spectral Submanifold Analysis
Sunghwan Jung, Isabella Thiel, Jisoo Yuk +1
Non-destructive early detection of water stress is critical for precision agriculture, yet current detection methods are often labor-intensive or destructive. We propose a rapid, n…
Static and Dynamic Estimation of Flexural Rigidity of Soybean
Akihito Kiyama, Haruka Tomobe, Jisoo Yuk +2
This paper evaluates a cantilever system as a simple method for measuring the mechanical rigidity (bending rigidity EI or Young's modulus E) of plants. Using soybeans as a test sam…
Leaf-inspired rain-energy harvesting device
Jisoo Yuk, Alicia Leem, Kate Thomas +1
We study a rain-powered energy-harvesting device inspired by the natural impact of raindrops on leaves. In nature, a raindrop striking a leaf at high speed causes it to deform and…
Toroidal cavitation by a snapping popper
Akihito Kiyama, Sharon Wang, Sunghwan Jung
Cavitation is a phenomenon in which bubbles form and collapse in liquids due to pressure or temperature changes. Even common tools like a rubber popper can be used to create cavita…
Optimal free-surface pumping by an undulating carpet
Anupam Pandey, Zih-Yin Chen, Jisoo Yuk +5
Examples of fluid flows driven by undulating boundaries are found in nature across many different length scales. Even though different driving mechanisms have evolved in distinct e…
On the design of particle filters inspired by animal noses
Jisoo Yuk, Aneek Chakraborty, Shyuan Cheng +5
Passive filtering is a common strategy used to reduce airborne disease transmission and particulate contaminants in buildings and individual covers. The engineering of high-perform…