Multimodal Blood Monitoring Wearable Device
Open-source, multimodal, configurable, highly-integrated wearable platform capable of simultaneously measuring multiple hemodynamic biosignals.
Posts by Collection
portfolio
Blink Twice For Help
A Brain-Inspired Spike Encoder and SNN SoC for Continuous Cognitive State Monitoring
Low-Power Wide Linear Output Range CMOS Biopotential Amplifier
A two-stage 1.8V CMOS biopotential amplifier for a wearable biomedical instrumentation frontend with internal gain enhancement switch feedback. Used the Skywater 130nm Process and simulated with the Cadence Design Suite. Verified 85dB CMRR, 0.15V to 1.7V output range with stable gain, 10µW power, and 100kHz bandwidth.
Practical Design of a Wideband EMI Injection Transformer
A jumpstart guide to custom magnetics design.
Verilog Sequential Multiplier
I built a Verilog sequential multiplier with a data path and controller partition designed with finite state machine principles. Simulated with testbench in Vivado and implemented on a Basys 3 Artix-7 FPGA board.
Parallel eFuse Development Board
This is a custom 30A paralleled eFuse protection board I built for Robotics @ Maryland.
Qubo Electrical Harness System
I built a simple modular wire harnessing system for Qubo’s submarine hull using a centralized connector PCB during my freshman year. Increased submarine electrical system bootup from under 35% success rate to over 98%. Built for Robotics @ Maryland.
publications
High-Throughput and Dosage-Controlled Intracellular Delivery of Large Cargos by an Acoustic-Electric Micro-Vortices Platform
Published in Advanced Science, 2021
This paper introduces a novel microfluidic platform for intracellular delivery.
Recommended citation: M. Aghaamoo, Y.-H. Chen, X. Li, N. Garg, R. Jiang, J. T.-H. Yun, A. P. Lee, High-Throughput and Dosage-Controlled Intracellular Delivery of Large Cargos by an Acoustic-Electric Micro-Vortices Platform. Adv. Sci. 2022, 9, 2102021. https://doi.org/10.1002/advs.202102021
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Towards a Broadly Configurable Wearable Device for Continuous Hemodynamic Monitoring
Published in 2024 IEEE 67th International Midwest Symposium on Circuits and Systems (MWSCAS), 2024
Seminal paper on a non-invasive, multimodal, configurable, hemodynamic monitoring wearable device capable of onboard processing. Selected as a top contribution to the conference and invited to a Special Issue in the IEEE Open Journal of Circuits and Systems.
Recommended citation: J. Yun, S. Nzama, and S. Shah, “Towards a Broadly Configurable Wearable Device for Continuous Hemodynamic Monitoring,” in 2024 IEEE 67th International Midwest Symposium on Circuits and Systems (MWSCAS), Aug. 2024, pp. 1309–1313, iSSN: 1558-3899. [Online]. Available: https://ieeexplore.ieee.org/document/10658959
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talks
Towards a Broadly Configurable Wearable Device for Continuous Hemodynamic Monitoring
Published:
[Slide Deck Here] Introduced a novel wireless, noninvasive, multimodal, hemodynamic monitoring wearable device built for blood monitoring. Presented at IEEE MWSCAS 2024. 
Wireless Hemodynamic Monitoring Wearable for Non-Invasive Hemorrhagic Shock Prediction
Published:
[Pitch Deck Here] TechConnect Spotlight Pitch Awardee. Gave a 5 minute pitch towards a review panel with 2 minutes feedback at the 2024 National SBIR Innovation Summit in Austin, TX as part of the Defense TechConnect Innovation Spotlight on a wearable in-field hemorrhagic shock prediction device. 
teaching
Teaching Assistant
ENEE140: Introduction to Programming Concepts for Engineers, University of Maryland, Department of Electrical and Computer Engineering, 2023
Gave substitute lectures to 75 student class. Led bi-weekly recitations and office hours to teach undergraduates C programming. Personally developed teaching content, demos, HW + project rubrics, and exams.