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외측상과염의 침 치료에 관한 최신 연구 동향 -PubMed를 중심으로
김영글,유선애,조성우,Kim, Young-Geul,Yu, Sun-Ae,Cho, Sung-Woo 척추신경추나의학회 2017 척추신경추나의학회지 Vol.12 No.1
Objectives : The purpose of this study is to investigate the trends of acupuncture treatment on lateral epicondylitis. Methods : We investigated the recent clinical studies of acupuncture treatment for lateral epicondylitis via searching PubMed from 2007.1.1. to 2016.1.1. This study examined published years, the authors, journals, countries, types of study and classified articles by techniques of acupuncture. Results : 20 theses out of 38 were included, excluding papers duplicated or whose texts are not identified or not satisfying both acupuncture and lateral epicondylitis simultaneously. The theses were constantly published every year. Analyzed by journal, the most published journal was Zhongguo Zhen Jiu. The studies of China had the greatest number of the searched theses. The types of study were reviews, case series, and study protocol. The acupuncture technique used were Hwachim(burning acupuncture therapy), sweet bee venom pharmacopuncture, percutaneous needle electrolysis, electroacupuncture, small needle-knife, combination with local points and Tianzong(SI11), and anti-ashi-point. Conclusions : In order to develop acupuncture treatment of lateral epicondylitis, clinical studies on high level with objective evaluation scale are needed.
김준현(Joon Hyun Kim),김영글(Young Geul Kim),안성욱(Sung Wook Ahn),김용성(Young Sung Kim) 한국생산제조학회 2013 한국생산제조학회지 Vol.22 No.6
This paper describes an improved model that can be used for configuring a non-contact pneumatic head to handle a large sheet of glass. The cylindrical head model is of a large size (70 mm). It operates on vortex flow, which can simultaneously generate suction and repulsion over the flat objects surface. The head allows for the minimal non-contact lifting of objects weighing over 3N by using reference conditions (working pressure and head dimensions). Additionally, a functional flow-guide is applied for inducing a developing tangential vortex flow to increase suction and repulsion to the reference head. The cylindrical flow-guide is associated with relatively low tangential velocity. The improved model generates greater lifting force than the reference model, as verified experimentally.
송성일(Seong-Il Song),안성욱(Sung Wook Ahn),김영글(Young Geul Kim),김현규(Hyun-Gyu Kim) 대한기계학회 2015 大韓機械學會論文集A Vol.39 No.11
본 연구에서는 맞대기 용접부, 겹치기 용접부 그리고 T자형 용접부에 대한 해석과 실험 결과를 비교하여 용접부의 단순화 유한요소 모델을 개발하였다. 맞대기와 겹치기 용접에 대한 시험편을 제작하고 3점 굽힘 시험을 통하여 용접 구조물의 강성과 용접 비드 근처의 변형률을 측정하였다. 이와 유사하게 T-자형 용접 시편에 대하여 끝 단에 하중을 부여하고 용접 구조물 강성과 용접 비드 근처의 변형률을 측정하였다. 용접부에 대한 단순화 유한 요소 모델의 형상 변수들을 설정하였고 선형 회귀 분석을 수행하여 실험 결과를 보다 정확히 표현할 수 있는 단순화 유한요소 모델의 형상 변수들을 결정하였다. In this paper, we develop simplified finite element (FE) models for butt-, lap- and T-welded joints by performing numerical and experimental experiments. Three-point bending tests of butt- and lap-welded specimens are performed to obtain the stiffness of the specimens and the strains at points near the welding beads. Similarly the stiffness and strains of T-welded specimen are measured by applying a point load at the end of the specimen. To develop simplified FE models, we consider the shape parameters of width, thickness and the angle of weld elements in the numerical simulations. The shape parameters of the simplified FE models are determined by building linear regression models for the experimental data sets.