Výsledky vyhledávání - "Jihyoung Lee"

Akademický článek

Integrating Sphere Finger-Photoplethysmography: Preliminary Investigation towards Practical Non-Invasive Measurement of Blood Constituents.

Autor: Takehiro Yamakoshi, Jihyoung Lee, Kenta Matsumura, Yasuhiro Yamakoshi, Peter Rolfe, Daiki Kiyohara, Ken-ichi Yamakoshi

Publikováno v: PLoS ONE, Vol 10, Iss 12, p e0143506 (2015)

The aim of this study was to compare conventional photoplethysmography (PPG) in a finger with PPG using an integrating sphere (ISPPG) to enhance scattered light collection. Two representative wavelengths were used; 1160 nm, a window through the absor

Externí odkaz: https://doaj.org/article/d95d0ee56232459aa8434f3bb1bc2af7

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Akademický článek

iPhone 4s photoplethysmography: which light color yields the most accurate heart rate and normalized pulse volume using the iPhysioMeter Application in the presence of motion artifact?

Autor: Kenta Matsumura, Peter Rolfe, Jihyoung Lee, Takehiro Yamakoshi

Publikováno v: PLoS ONE, Vol 9, Iss 3, p e91205 (2014)

Recent progress in information and communication technologies has made it possible to measure heart rate (HR) and normalized pulse volume (NPV), which are important physiological indices, using only a smartphone. This has been achieved with reflectio

Externí odkaz: https://doaj.org/article/2ca431e13f3c4858bf88152107a78102

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The Effect of Visual Attention Factors on Visual Field Testing for Maintenance of Gaze Fixation

Autor: Jaheon Kang, Jihyoung Lee, Gunhee Oh, Heecheon You, Younggeun Choi, Hyejee Kim, Xiaopeng Yang, Minjae Kim

Publikováno v: Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 61:701-704

The maintenance of gaze fixation during visual field testing is needed to accurately measure the functionality of the optic nerve. The present study is intended to analyze the performance of gaze fixation and evaluate five gaze fixation induction met

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26bae5b70f12baa9925901fa086a75aa
https://doi.org/10.1177/1541931213601661

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Evaluation of System for Simultaneous Measurement of Physiological Parameters: Potential for Determination of Age-Related Cardiovascular Status

Autor: Akira Kamiya, Honoka Koga, Ken-ichi Yamakosh, Jihyoung Lee, Takehiro Yamakoshi, Peter Rolfe

Publikováno v: IFMBE Proceedings ISBN: 9783030316341

We have developed a system for simultaneously determining arterial parameters by performing measurements on just one finger. The purpose of the present study was to evaluate the ability of this system to identify a state of ill health. The system can

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97ac88e858fc3ed70e1ba4d1c49fc19e
https://doi.org/10.1007/978-3-030-31635-8_199

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Development of an LCD-Based Visual Field System

Autor: Heecheon You, Jin Ho Joo, Jihyoung Lee, Jaheon Kang

Publikováno v: Journal of Korean Medical Science

Background The present study investigated the diagnostic effectiveness of an LCD-based visual field testing system (LVF) in comparison with the standard automated perimetry Humphrey Field Analyzer II-750i (HFA). Methods A randomized controlled crosso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a68bbab437698214582df11921c99302
https://doi.org/10.3346/jkms.2018.33.e19

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