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족삼리(足三里), 합곡(合谷) 단일(單一) 및 배혈(配穴) 침자(鍼刺)가 상치통(上齒痛) 유발(誘發) 백서(白鼠)의 dEMG에 미치는 영향(影響)
오창록,조명래,채우석,나창수,Oh Chang-Rock,Cho Myung-Rae,Chae Woo-Seok,Na Chang-Su 경락경혈학회 2003 Korean Journal of Acupuncture Vol.20 No.1
Objectives : The pain was induced on upper and lower incisor of the rat based on the theory of 'connections of upper incisor pain with stomach meridian and lower incisor pain with large intestine meridian'. Such acupoints as LI4 and ST36 were used for alleviation of upper and lower incisor pain. Methods : The digastric myogram (dEMG) was utilized for the pain measurement. Results : The ST36 acupuncture after induction of upper incisor pain was gradually decreased or increased the dEMG. The LI4 acupuncture after induction of upper incisor pain was gradually decreased the dEMG. The ST36+LI4 acupuncture after induction of upper incisor pain was gradually decreased the dEMG. We knew this thing which the ST36+LI4 acupuncture decreased the dEMG most greatly and kept long compared to ST36 acupuncture, LI4 acupuncture. Conclusions : Acupuncture treatment at the loci of not only ST36 acupuncture but LI4 acupuncture were relieved the upper incisor pain. It was well suitable to the theory 'connections of upper incisor pain with stomach meridian' that ST36 acupuncture decreased the upper incisor pain. But there was not to decrease the dEMG for the ST36 acupuncture. We are considered as tracing study continuously about ST36 acupuncture. It was not suitable to the theory 'connections of upper incisor pain with stomach meridian' that LI4 acupuncture decreased the upper incisor pain. These results was considered as the function by the characteristic of the LI4 acupoint.
임베디드 프로세서를 이용한 스마트 배터리 관리 시스템 구현에 대한 연구
오창록,이성원,Oh, Chang-Rok,Lee, Seong-Won 한국전기전자학회 2011 전기전자학회논문지 Vol.15 No.4
최근 휴대 가능한 스마트폰, 노트북과 같은 모바일 기기의 수요가 급격하게 늘어나고 있다. 또한 이러한 기기는 한 제품에 여러 기능을 추가하는 복합화와 대용량의 멀티미디어 기능과 같은 스마트 기능이 주류를 이루면서 더 많은 전력을 소모하게 된다. 이에 따라 기존의 속도와 성능을 향상시키기 위한 노력에서 한정된 배터리 용량을 효율적으로 사용하여 효율을 극대화 시키려는 노력으로 변화하고 있다. 본 논문에서는 임베디드 프로세서를 이용해 이벤트 드리븐 프로그래밍 방식을 사용한 배터리 관리 시스템을 제안하고 제안된 시스템이 SBS(Smart Battery Specification) v1.1을 만족 할 수 있음을 보였다. 제안하는 배터리 관리 시스템의 특징은 기존의 임베디드 시스템에서 실시간 운영체제를 이용한 배터리 관리 시스템에 비해 전체 코드 크기와, 필요한 메모리 크기를 줄 일 수 있다. 또한 Firmware 형태로 구성하여 쉽게 기존의 운영체제에 포함 할 수 있다. Recently portable mobile devices such as smart-phones and notebooks have rapidly increasing demands. Those devices consume more power because they are expected to offer more complex functionality including multimedia features. For these reasons engineering efforts are changing to focus on maximizing energy efficiency within a limited battery capacity instead of increasing computational performance. In this paper, we propose a battery management system using event driven programming technique on a embedded processor. We also show that the proposed system satisfies SBS (Smart Battery Specification) v1.1. The proposed system maintains minimum code size and memory size comparing to those of RTOSs. The proposed system can be also easily incorporated in the conventional RTOSs as a form of firmware.
Workstation을 이용한 CT, MR, TFCA 3D image의 비교 분석
오창록(Chang Rok OH),황병운(Byung Woon HWANG),차상현(Sang Hyun CHA) 대한전산화단층기술학회 2005 대한CT영상기술학회지 Vol.7 No.1
Purpose We compared cerebral aneurysm image of confirmed patients using workstation and evaluated the predominance among 3D-MDCT, 3D-MRI, 3D-TFCA for the modality. Materials and Methods During June 2004 to January 2005 we examined 43 patients suspected for cerebral subarachnoid hemorrage of 75 patients(male : female = 22 : 53, everage age = 57) tested TFCA in 320 patients tested MDCTA, MRA at Eulgi university hospital.(9 patients tested MDCTA, MRA, TFCA and 29 patients tested CTA, TFCA and 5 patients tested MRA, TFCA) So we compared image of true aneurysm, junctional dilatation in 3D-MDCT, 3D-MRI, 3D-TFCA with 2 professor by 3D Workstation Rapidia(Infinitt Korea), Siemens Inspace software and Munich Germany. Results As a result of cerebral aneurysm 3D image from MDCTA, MRA, TFCA, it was confirmed for 22 true aneurysm patients, misrecognized for aneurysm 7 junctional dilatation patients among 29 patients tested TFCA after MDCTA and 3 true aneurysm patients, misrecognized for aneurysm 2 junctional dilatation patients among 5 patients tested TFCA after MRA and misrecognized for aneurysm patients tested TFCA after MRA and and misrecognized for aneurysm 1 junctional dilatation patient tested MDCTA after MRA. We got the same result, controled 3D threshold and reconstructed 3D again, of 3 patients among 7 patients confirmed for junctional dilatation tested TFCA after MDCT A like the result of TFCA. Conclusions We could not satisfactionally get the result, controled 3D threshold and reconstructed 3D again, of misrecognized for aneurysm 2 patients in MRA than the result in MDCTA. MRA 3D image was became to express uncertain portion more certainly than MRI MIP image. From the result of compared 3D image we could find the aneurysm and a high diagnosis value in TFCA first of all and the second in MDCT A and the last in MRA. It was expressed more certainly in MRA 3D image than in MRI MIP image.
전기화학시험에 의한 부식용액별 구조물의 부식 특성 연구
오창록(Chang-Rok Oh),구병춘(Byeong-Chun Goo) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
The present paper describes an experimental study on the corrosive behaviour of Rolling stock structures. It is important to predict corrosive behaviour of rolling stock structures for safe service and to know relation between corrosion and fatigue life. This paper practiced electrochemical corrosion test of SS400 and SM490A. This study will examine the corrosive properties and differences of SS400 and SM490A from measuring corrosion potential, corrosion current density and corrosion rate.
오창록(Chang-Rok Oh),김용기(Yong-Ki Kim),장세기(Se-Ky Jang),구병춘(Byeong-Chun Goo) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
The present paper describes an experimental study on the corrosive behaviour of Rolling stock structures. It is important to predict corrosive behaviour of rolling stock structures for safe service and to know relation between corrosion and fatigue life. This paper practiced electrochemical corrosion test of SS400 and SM490A. This study will examine the corrosive properties and differences of SS400 and SM490A from measuring corrosion potential and corrosion current density.