Wenzheng's Blog

Words are cheap, but code is noble.

Building upon the two officially recommended workflows, this chapter details, from first principles, how to configure and use the nRF5340 DK on a local workstation. The Nordic nRF Connect SDK (NCS), built on Zephyr, is the preferred toolchain; for most projects, the official guidance is to build within the nRF Connect for VS Code extension.

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A practical, theory‑grounded guide to the MOP‑MCML Monte‑Carlo simulator for modeling photon transport in layered biological tissues, with instructions, file formats, and validation recipes.

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IAD (Inverse Adding-Doubling) is based on the AD (Adding-Doubling) method, supplemented by a Monte Carlo correction. It allows the intrinsic optical parameters of the sample to be deduced from the measured values of reflectance $R$ and transmittance $T$.

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MATLAB code program for generating modifiable ECG and PPG simulation signals. Noise can be added according to different scenarios to simulate real-world measurement conditions. Flexible modification is possible for signal duration, sampling frequency (PPG - 75 to 1000 Hz; ECG - 250 to 1000 Hz), abnormal ECG duration, and noise type and intensity.

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PhysioNet provides an extensive, openly accessible repository of physiological signals, serving as a cornerstone for training advanced models and acquiring high‑quality physiological data.

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