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김형선,이주행,이아현,Kim, Hyoung-Sun,Lee, Joo-Haeng,Lee, Ah-Hyun 서비스사이언스학회 2015 서비스연구 Vol.5 No.1
공간증강현실(Spatial Augmented Reality, SAR) 기술은 초소형 프로젝터와 카메라로 구성되어 실제 사물을 인식하고, 물체 표면이나 주변에 상황에 적합한 정보 및 사용자 인터페이스를 투사(projection)하는 기술이며, 최근에는 소형 프로젝터의 등장으로 더욱 각광 받고 있는 기술이다. 본 논문에서는 공간증강현실 기술이 새로운 IT 패러다임으로 부각됨에 따라 이 기술을 이용하여 스탠드 형 모양에 프로젝터-카메라-프로세서를 설치하여 스마트 프로젝션(Smart Projection) 서비스 시스템을 구현하고, 적용한 서비스 구현사례를 소개 하고자 한다. Spatial Augmented Reality (SAR) technology perceives real world objects, and their contexts and augments appropriate information and user interfaces on or around the surface of the objects is a technique of projecting. A SAR device typically consists of a small projector and a camera and a processor, and this technology is becoming more widespread along with the advent of subminiature project In this paper, as the spatial augmented reality technology is being magnified as a new IT paradigm, we introduce our stand-type installation of projector-camera-processor components, discuss our implementation of smart projection service system, and present its use cases.
김형선,조병원,윤경석,전해수 ( Hyung Sun Kim,Byung Won Cho,Kyung Suk Yun,Hai Soo Chun ) 한국공업화학회 1996 공업화학 Vol.7 No.2
Li/V_6O_(13) 전지의 성능과 poly(acrylonitrile)[PAN]계 폴리머 전해질의 전기화학적인 성질을 조사 하였다. 폴리머 전해질의 이온 전도도는 상온에서 2.3×10^(-3)S/㎝를 보였으며 리튬 전극과의 상용성도 우수하였다 또한 4.3V(vs. Li^+/Li)까지의 전기화학적인 안정성이 있는 것으로 나타났다. Li/V_6O_(13) 전지 반응은 V_6O_(13) 전극과 폴리머 전해질간의 계면저항이 지배적 이었다. V_6O_(13)내의 리튬 이온의 확산 계수값은 2.7×10^(-9)∼4.2×10^(-8)㎠/sec로 나타났다. V_6O_(13) 활물질의 이용률은 C/8(50㎂/㎠)에서 95%였으며 C/4(100㎂/㎠)에서는 82%로 각각 나타났다. The performance of Li/V_6O_(13) cell and the electrochemical properties of polymer electrolyte based on poly(acrylonitrile)[PAN] was investigated. The ionic conductivity of polymer electrolyte showed 2.3×10^(-3)S/㎝ and the compatibility with lithium electrode was excellent. Also, it showed the electrochemical stability up to 4.3V(vs. Li^+/Li). The cell reaction of Li/V_6O_(13) was dominated by the interfacial resistance between V_6O_(13) electrode and polymer electrolyte. The diffusion coefficient of lithium ion within V_6O_(13) was 2.7×10^(-9)∼4.2×10^(-8)㎠/sec. The utilization of V_6O_(13) active material was 95% at C/8(50㎂/㎠) and 82% at C/4(100㎂/㎠), respectively.
김형선,Kim, Hyung-Seon 한국방위산업진흥회 1998 國防과 技術 Vol.- No.227
한반도 안보상황이 어떠한 상태가 되던간에 가장 중요한 것은 우리의 안보역량 확보 여부에 달려있다. 우리의 생존을 지키고 국가위상에 걸맞는 군사력의 유지는 필수적인 것이다. 과학기술과 첨단 무기체계가 주도할 미래의 정보전쟁에 대비하기 위해서는 군사기술의 자립이 매우 중요한 과제이다.
김형선,김명은,이강우,서영호,Kim, H.S.,Kim, M.E.,Lee, K.W.,Seo, Y.H. 한국전자통신연구원 2008 전자통신동향분석 Vol.23 No.5
본 고에서는 로봇 자체에서 제공하기 어려운 고기능의 로봇 서비스를 다수의 이기종 로봇 플랫폼에게 안정적으로 제공할 수 있는 네트워크 기반 로봇 표준 환경으로 개발하고 있는 RUPI 서버 소프트웨어 플랫폼에 대하여 기술한다. RUPI 서버 소프트웨어 플랫폼은 원격에서 로봇 클라이언트의 상태를 진단하고 복구하는 로봇 클라이언트 관리 기술, 로봇 클라이언트에서 수행되기 어려운 응용 컴포넌트를 로봇 클라이언트를 대신하여 적재, 관리, 실행하는 로봇 클라이언트 응용 관리기술, 상황인지 기반의 원격 로봇 응용 개발 및 운용을 위한 원격 로봇 응용 플랫폼 기술, 다수의 이종 로봇 클라이언트가 안정적으로 접속할 수 있도록 고가용성을 보장하는 RUPI 서버 가용성 기술로 구성되며 본 고에서는 이를 위한 표준기술 규격과 동향 및 구현 기술에 대하여 살펴본다.
김형선,Goo-Hwa Kang,Hanlim Song,Ra Gyung Kim,Ji-Young Park,황정호,김형일 한국뇌신경과학회 2019 Experimental Neurobiology Vol.28 No.3
The brain grows with age in non-human primates (NHPs). Therefore, atlas-based stereotactic coordinates cannot be used directly to target subcortical structures if the size of the animal’s brain differs from that used in the stereotactic atlas. Furthermore, growth is non-uniform across different cortical regions, making it difficult to simply apply a single brain-expansion ratio. We determined the skull reference lines that best reflect changes in brain size along the X, Y, and Z axes and plotted the changes in reference-line length against the changes in body weight. The skull reference lines had a linear relationship with body weight. However, comparison of skull reference lines with body weight confirmed the non-uniform skull growth during postnatal development, with skull growth more prominent in the X and Y axes than the Z axis. Comparing the differences between the atlas-based lengths and those calculated empirically from plot-based linear fits, we created craniometric indices that can be used to modify stereotactic coordinates along all axes. We verified the accuracy of the corrected stereotactic targeting by infusing dye into internal capsule in euthanized and preserved NHP brains. Our axis-specific, craniometric-index-adjusted stereotactic targeting enabled us to correct for targeting errors arising from differences in brain size. Histological verification showed that the method was accurate to within 1 mm. Craniometric index-adjusted targeting is a simple and relatively accurate method that can be used for NHP stereotactic surgery in the general laboratory, without the need for high-resolution imaging.
장기요양 인정자의 신체적 및 정신적 기능 상태와 삶의 질과의 관계
김형선,배남규,권인선,조영채,Kim, Hyeong-Seon,Bae, Nam-Kyou,Kwon, In-Sun,Cho, Young-Chae 대한예방의학회 2010 예방의학회지 Vol.43 No.4
Objectives: This study was performed to determine the levels of quality of life (QOL) according to the grade of long-term care service for the elderly people who were admitted from long-term care insurance, and to reveal its association with the physical and mental functioning such as the Activity of Daily Living (ADL), the Instrumental Activity of Daily Living (IADL), the Center for Epidemiologic Studies Depression Scale (CES-D), and the Mini-Mental State Examination-Korean version (MMSE-K). Methods: The interviews were performed during the period from March 1 to May 31, 2009, for 958 elderly people in urban and rural areas. The questionnaire items included various indices such as the ADL, IADL, CES-D, and MMSE-K, as independent variables and the index of QOL, as the dependent ones. For statistical analysis, t-tests were used for the mean scores of QOL according to gender and the grade of long-term care services, and Spearman's correlation was used for each variable. The effects of physical and mental functioning for QOL were assessed by covariance structure analysis. The statistical significance was set at p<0.05. Results: The mean scores of QOL among all the subjects was $55.4{\pm}15.62$ (Grade I: $49.7{\pm}14.17$, Grade II: $56.8{\pm}14.62$, Grade III: $59.4{\pm}16.36$), and it was lower according to the higher grade of long-term care insurance. In terms of the correlation matrix of the QOL and the physical and mental function factors, the QOL showed positive correlation with the ADL, IADL and MMSE-K, while it had negative correlation with depression. On the analysis of covariance, mental functioning (depression and the MMSE-K) had a greater influence on the level of QOL than the physical functioning (ADL and IADL). Conclusions: The level of the QOL in the elderly people who were admitted from long-term care insurance was lower according to higher the grade of long-term care insurance. Also, the mental functioning (depression and MMSE-K) was more influential on the level of the QOL than the physical functioning (ADL and IADL).