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폐기된 모바일 기기를 활용한 실시간 알고리즘 기반 낙상 감지 시스템
박익범(Ik-Bum Park),차승훈(Seung-Hoon Cha),신연순(Youn-Soon Shin) 한국정보기술학회 2024 Proceedings of KIIT Conference Vol.2024 No.11
본 연구는 고령화 사회에서 증가하는 낙상 사고 문제에 대응하기 위해 폐기된 모바일 기기를 활용한 실시간 낙상 감지 시스템을 제안한다. 제안된 시스템은 모바일 기기에 내장된 카메라와 Apple Vision Framework를 사용하여 사용자의 다양한 동작을 분석하고 낙상 여부를 판단한다. 얼굴과 골반의 변위 및 신체 비율 변화를 기반으로 낙상을 감지하는 알고리즘을 설계하여, 즉각적인 낙상 상황 감지와 알림 기능을 구현하였다. 본 시스템은 접근성과 이동성 측면에서 우수하며, 환경 보호에도 기여할 수 있다. This study proposes a real-time fall detection system using repurposed mobile devices to address the growing issue of fall incidents in an aging society. The proposed system leverages the built-in camera and Apple's Vision Framework on mobile devices to analyze various user movements and determine falls. A fall detection algorithm, based on facial and pelvic displacement and body ratio changes, was designed to enable immediate fall detection and alerting. This system demonstrates high accessibility and mobility, along with potential contributions to environmental protection.
변상현,박익범 中央醫學社 1989 中央醫學 Vol.54 No.5
14-yr-old symptomatic male patient showed as follows; 1. hepatopathy, nephropathy; ascites, abdominal distension, edema, jaundice, hematuria, abnormal LFT. 2. undetectable s-ceruloplasmin level 16-yr-old asymptomatic male had low s-ceruloplasmin value.
Cu<sup>2+</sup>, Al<sup>3+</sup>, Zn<sup>2+</sup>이 활성슬러지에 미치는 저해영향 평가
김창규,김요용,박익범,송진호,남우경,한송희,김복준,오조교,Kim, Chang-Gyu,Kim, Yo-Yong,Park, Ik-Beom,Song, Jin-Ho,Nam, Woo-Kyong,Han, Song-Hee,Kim, Bok-Jun,Oh, Jo-Gyo 한국물환경학회 2015 한국물환경학회지 Vol.31 No.2
In this study, the inhibitory effect of toxic metals was investigated on the activated sludge of the municipal sewage treatment plant. The allowable concentration of toxic metals was also estimated for the stable operation of the biological treatment process. The single and mixture toxicity of $Cu^{2+}$, $Al^{3+}$ and $Zn^{2+}$ were evaluated for the activated sludge microorganisms. As a result, nitrifying microorganisms were more susceptible than heterotrophic microorganisms. $IC_{10}$ (Inhibition Concentration of 10%) of $Cu^{2+}$, $Al^{3+}$ and $Zn^{2+}$ for the nitrifying microorganisms was 3 mg/L, 7 mg/L and 25 mg/L, respectively. The mixture toxicity showed three times more sensitive than the single toxicity. The concentrations of $Cu^{2+}$, $Al^{3+}$ and $Zn^{2+}$ to minimize the inhibitory effect on organic matter removal and nitrification in batch experiments were found to be 1.3 mg/L, 2.5 mg/L and 6.3 mg/L.