Definition of constraints and evaluation of interactions for human-robot combined model analysis

Kilhyun Cho,Moonki Jung,Hyung Joo Kim,Sang-Woo Lee,Do-Suk Han,Kunwoo Lee 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.4

CAD 시스템과 생체역학을 이용한 외골격로봇-휴먼 결합모델 해석

조길현(Kilhyun Cho),정문기(Moonki Jung),김형주(Hyung Joo Kim),이상우(Sang-Woo Lee),한도석(Do-Suk Han),이건우(Kunwoo Lee) (사)한국CDE학회 2011 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2011 No.1

Exoskeletons have been studied and developed to enhance and assist the human operations in industrial and medical applications. Exoskeletons are the products that have much more interactions with humans than any others. The performance of exoskeletons is determined by its geometries, kinematic and kinetic characteristics, control algorithms and the interactions with their operators, etc. Because it is very expensive to make a mock-up of exoskeletons for a physical test, it would be efficient to design and analyze it in a virtual prototyping environment. In the analysis of exoskeletons, some necessary information such as human muscle forces, joint torques and reaction forces should be extracted and evaluated. To do so, in this research a simplified exoskeleton is designed in the CAD system and some selected human operations are analyzed using musculoskeletal analysis software. Then we can understand the significant effect of an exoskeleton as an assistive device for human operators. By this method the proper design variables of exoskeletons can be deduced.

재난취약자의 현장조치 행동매뉴얼 비교연구 – 한국과 일본의 장애인 대상으로

Soodong Kim,Sahong Lee,Kilhyun Choi,Chongsoo Cheung 한국재난정보학회 2017 한국재난정보학회 논문집 Vol.13 No.2

본 연구는 재난 또는 재난상황이 발생되면 일반인에게는 크게 문제되지 않는 상황이라 해도 노약자나 장애인, 경제적 능력이 떨어지는 취약계층에 관한 논점이 있다. 즉 재난취약계층의 특성을 이해하고 동일한 상황이라도 이들에게는 심각한 위험이 될 수 있다는 점을 고려하여 재난대비 현장조치 행동매뉴얼의 필요성을 강조하여 제기한다. 또한 취약계층 중에서 전 세계가 동일한 용어정의를 선택하고 있는 장애인에 국한해서 연구를 진행하고자 한다. 한국과 일본의 사례를 비교하는 방식으로 장애인을 위한 현장조치 행동매뉴얼 개발의 토대를 제공하고자 한다. 따라서 일본과 한국의 사례를 통하여 재난 시 일상생활 자립성 유지기능 , 재난 시 의사소통 기능, 이동방법 및 이동정보 활용 기능, 응급상황 대응 인식 능력 기능, 재난 시 건강상태 관리 기능을 확보해 주는 방향으로 현장조치 행동 매뉴얼 개발의 시급성을 강조한다. 이러한 국내 상황으로부터 본 연구에서는 장애인을 위한 재난안전 현장조치 행동매뉴얼과 관련된 논의에 한정해서 논점을 결론으로 정리하고자 한다. This study has some issues about the elderly, the disabled, and the vulnerable groups whose economic ability is low even if the disaster or disaster situation is not a big problem for the people. we should emphasize the necessity of disaster preparedness action manual considering the characteristics of disaster vulnerable classes and taking serious risks to them even in the same situation. We also want to conduct research only for people with disabilities who are choosing the same definition of the world among the vulnerable groups. I would like to provide a basis for developing a site action manual for people with disabilities by comparing the cases of Korea and Japan. Therefore, through the cases of Japan and Korea, it is possible to maintain the independence of everyday life during disasters, the communication function in disasters, the method of moving information and mobile information, the function of recognizing emergency response, Action Emphasize the urgency of developing action manuals. From this domestic situation, we will conclude the discussion on the disaster safety and action manual for the disabled.

무선 센서 & 액터 네트워크를 위한 효율적인 키관리 프로토콜

김완주(Wanju Kim),남길현(Kilhyun Nam),이수진(Soojin Lee) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.1A

무선 센서 및 액터 네트워크를 위한 효율적인 키관리 프로토콜

김완주(Wanju Kim),남길현(Kilhyun Nam),이수진(Soojin Lee) 한국정보과학회 2007 정보과학회 컴퓨팅의 실제 논문지 Vol.13 No.7

최근 센서 네트워크는 다양한 분야에서 응용되고 있으며 활발한 연구가 진행되고 있다. 그러나 센서 네트워크는 특정 현상에 대한 정보를 수집하고 이를 외부의 네트워크 관리자에게 전송하고 관리자는 전송된 정보를 이용하여 대응하는 형태로 구성되어 있어 사건에 대한 즉각적이고 적시적인 대응이 어렵다. 이러한 문제점을 극복하기 위해 센서 네트워크에 이동성과 활동성을 가져 즉시적인 대응능력이 있는 액터 노드를 포함하는 무선 센서 및 액터네트워크(WSANs)가 제안되었다. WSANs는 센서 네트워크와 여러 측면에서 많은 공통점을 가지고 있으나, 노드들이 동등한 권한과 능력을 가지는 센서 네트워크와는 달리 자원제약이 적고 이동성을 가지는 액터 노드를 포함하고 있어 기존의 보안기술을 적용하기에는 어려움이 많다. 따라서 본 논문은 WSANs를 안전하고 효율적으로 운용하기 위해 요구되는 기밀성, 무결성, 인증 등의 보안 서비스를 제공하기 위해, 네트워크를 노드의 능력에 따라 계층적으로 구분하고 액터 하위 계층에는 일대일키(Pair-wise Key), 노드키(Node Key), 지역키(Region Key)를 활용한 키관리 프로토콜을 액터 상위 계층에는 공개키 기반의 키관리 프로토콜을 제안한다. Researches on Sensor Network has become much more active and is currently being applied to many different fields. However since sensor network is limited to only collecting and reporting information regarding a certain event, and requires human intervention with that given informtaion, it is often difficult to react to an event or situation immediately and proactively. To overcome this kind of limitation, Wireless Sensor and Actor Networks (WSANs) with immediatereponse Actor Nodes has been proposed which adds greater mobility and activity to exisiting sensor net-works. Although WSANs shares many common grounds with sensor networks, it is difficult to apply exisiting security technologies due to the fact that WSAN contains Actor Nodes that are resource-independent and mobile. This research therefore seeks to demonstrate ways to provide security, integrity and authentication services for WSAN's secure operation, by separating networks into hierarchcial structure by each node's abilities and providing different encryption key-based secure protocols for each level of hierarchy: Pair-wise Key, Node Key, and Region Key for sensor levels, and Public Key for actor levels.

재난취약자의 현장조치 행동매뉴얼 비교연구 - 한국과 일본의 장애인 대상으로

Kim, Soodong,Lee, Sahong,Choi, Kilhyun,Cheung, Chongsoo 한국재난정보학회 2017 한국재난정보학회 논문집 Vol.13 No.2

본 연구는 재난 또는 재난상황이 발생되면 일반인에게는 크게 문제되지 않는 상황이라 해도 노약자나 장애인, 경제적 능력이 떨어지는 취약계층에 관한 논점이 있다. 즉 재난취약계층의 특성을 이해하고 동일한 상황이라도 이들에게는 심각한 위험이 될 수 있다는 점을 고려하여 재난대비 현장조치 행동매뉴얼의 필요성을 강조하여 제기한다. 또한 취약계층 중에서 전 세계가 동일한 용어정의를 선택하고 있는 장애인에 국한해서 연구를 진행하고자 한다. 한국과 일본의 사례를 비교하는 방식으로 장애인을 위한 현장조치 행동매뉴얼 개발의 토대를 제공하고자 한다. 따라서 일본과 한국의 사례를 통하여 재난 시 일상생활 자립성 유지기능, 재난 시 의사소통 기능, 이동방법 및 이동정보 활용 기능, 응급상황 대응 인식 능력 기능, 재난 시 건강상태 관리 기능을 확보해 주는 방향으로 현장조치 행동 매뉴얼 개발의 시급성을 강조한다. 이러한 국내 상황으로부터 본 연구에서는 장애인을 위한 재난안전 현장조치 행동매뉴얼과 관련된 논의에 한정해서 논점을 결론으로 정리하고자 한다. This study has some issues about the elderly, the disabled, and the vulnerable groups whose economic ability is low even if the disaster or disaster situation is not a big problem for the people. we should emphasize the necessity of disaster preparedness action manual considering the characteristics of disaster vulnerable classes and taking serious risks to them even in the same situation. We also want to conduct research only for people with disabilities who are choosing the same definition of the world among the vulnerable groups. I would like to provide a basis for developing a site action manual for people with disabilities by comparing the cases of Korea and Japan. Therefore, through the cases of Japan and Korea, it is possible to maintain the independence of everyday life during disasters, the communication function in disasters, the method of moving information and mobile information, the function of recognizing emergency response, Action Emphasize the urgency of developing action manuals. From this domestic situation, we will conclude the discussion on the disaster safety and action manual for the disabled.

초교환 상호작용과 비등방성 초교환(Dzyaloshinskii-Moriya) 상호작용

양일규(Il Kyu Yang),방길현(Kilhyun Bang),김범현(Bum Hyun Kim),민병일(Byung Il Min) 한국자기학회 2007 韓國磁氣學會誌 Vol.17 No.5

The superexchange interaction is introduced to explain antiferromagnetic ordering in transition metal compounds such as MnO and MnF₂. The anisotropic superexchange (Dzyaloshinskii-Moriya: DM) interaction can be derived by incorporating the spin-orbit interaction into the superexchange interaction. The anisotropic superexchange DM can account for the weak ferromagnetism observed in transition metal compounds such as α-Fe₂O₃, MnCO₃, CrF₃.

인삼사포닌의 마우스 비장 임파구에 대한 면역활성

정경수,이대우,양희정,이순철,김길현 충남대학교 약학대학 의약품개발연구소 1994 藥學論文集 Vol.10 No.-

To ellucidate immunologic activities of ginseng saponin, the splenic leukocytes of BALB/c mice were incubated in RPMI medium for 48hr with or without ginseng total saponin(GTS), and then analyzed flow cytometrically. Upto the concentration of 100㎍/㎖, GTS exherted stimulatory effect on the immune cells most prominently on B cells: the percentage of the surface Immunoglobulin (sIg) -positive cells (B cells) of the control was 47.l%, while that of GTS treated was 58.9%. The percentages of monoclonal antibody(mAb) J1j-reactive cells (T cells) were 28.8% and 3l.3%, those of mAb Gkl.5-reactive cells (CD4' T cells) were l8.5% and l9.l%, and those of mAb M1/70-reactive cells (mostly macrophages) were 4.4 and 5.0% at the concentration of 0 and 100㎍/㎖, respectively. However, at the concentration of 300㎍/㎖ or higher, GTS was found to be toxic to the immune cells especially to B cells in that the flow rate of the cells (gated viable cells) significantly decreased and the percentage of B cells droped from 58.9% to 31.2% and 25.4% at l00, 300, and 1000㎍/㎖, respectivelly. These data strongly suggests that GTS would exhert B-cell mitogen-like activity at physiological concentrations of 100㎍/㎖ or lower.

A Large Axiom Soybean SNP Genotyping Array: Development, Validation, and Genetic Mapping

Soon-Chun Jeong,Namhee Jeong,Yun-Gyeong Lee,Ji Hong Kim,KilHyun Kim,Ali Pirani,Bridget Moore,Bo-Keun Ha,Sung‐Taeg Kang,Beom-Seok Park,Jung-Kyung Moon,Namshin Kim 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07

An important worldwide plant source of dietary protein and oil, modern breeding and improvement of soybean is suffered from a narrow cultivated germplasm relative to other crop species likely because of underuse of wild soybeans as breeding resources. SNP genotyping array is regarded as a promising tool for dissecting wild and cultivated germplasms to find important adaptive genes by high-density genetic mapping and genome-wide association studies (GWAS). Here, we present the establishment of a large soybean SNP array and its use for diversity analysis and high density linkage mapping. More than 4 million high-quality SNPs identified from 16 high-depth and 31 low-depth soybean genome resequencing data were used to select 180,961 SNPs for the AxiomÒ SoyaSNP array. Our validation analysis for a set of 222 diverse soybean lines showed that a total of 171,161markers were of good quality for genotyping. Of the converted SNPs, 82.6% 82.6% SNPs had a marker spacing of less than 9 kb and 17.4% SNPs greater than 9 kb with the 297 inter-SNP spacings of >100 kb and with 812 kb of the largest spacing, thereby suggesting that our array is likely suitable for GWAS of soybean germplasm. This array is being used to construct high-density genetic map in populations generated from intermatings of two cultivated and two wild soybeans, with an objective to confirm large structural variations of chromosomes using the ultra-high-density maps