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    Measurements of Periodic Signals Phase Shifts with Application of Direct Digital Synthesis by I. V. Gula, O. I. Polikarovskykh, K. I. Horiashchenko, I. V. Karpova, V. M. Melnychuk

    Published 2019-06-01
    “…This allowed the implementation of an 8-bit converter phase shift signal to the code on the programmed logic integrated circuit EPM240T100C5N firm Altera.The digital phase shift meter of periodic signals based on the double-matching method consists of two comparators, two short-wave pulse generators, a direct digital frequency synthesizer, two pulse counter control circuits, two short pulse coincidence circuits, two pulse counting circuits, four clock counters, four registers, a microcontroller and an indicator. …”
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    Reliability Testing of Machine Learning Model Prediction Capability towards Unidentifiable Microplastic Spectral Data: Triple Battery and Colorant Investigation by Wesley A. Williams, Shyam Aravamudhan

    Published 2025-01-01
    “…Lastly, an investigation of 2 samples revealed confounding colorant additives (SKNN’s predictions) as copper phthalocyanine (C2. Blue Fiber) and a derivative from the family of diketo-pyrrolo-pyrroles (Polyester 12. …”
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