DELAYED FEEDBACK을 이용한 로보트 제어기의 설계

임동진 제어로봇시스템학회 1990 제어로봇시스템학회 국내학술대회 논문집 Vol.1990 No.10

페이스북 우정(友情)과 온라인 동원(動員)

임동진 梨花女子大學校 社會科學大學 社會科學硏究所 2011 사회과학연구논총 Vol.25 No.-

In spite of the current situation in which the clear definition of “online friend” has not been set, this study investigated the meaningfulness of online friendships in the context of Social Networking Site. Online friendship was measured not by intention to help or provide social support but by an actual amount of support received. As a result, online mobilization was positively associated with tie strength but not related to personalness of request. Although tie strength affected the online friends’ participation itself (yes or no), it did not influence the quantitative aspect and duration of secondary participants’ labor. And contact frequency between online friends, reciprocity, equity, and altruism were not associated with time spent labeling images and the number of images labeled. Future research would benefit by focusing on comparing those who participated with those who did not participate in terms of reciprocity, equity, and altruism. ‘온라인 친구’라는 개념에 대한 정의가 아직 불분명한 오늘날, 본 연구는 소셜네트워킹사이트 안에서의 온라인 우정의 의미에 대해 알아보았다. 온라인 우정을 정확하게 파악하기 위해, 도와주려는 의도가 아닌 실제로 도와줬는지 여부를 측정하였다 (온라인 동원: 이미지 레이블링 태스크). 결과적으로, 온라인 동원은 친밀도와 밀접한 관계(양의 상관관계)가 있었지만, 부탁의 개인적인 정도 (부탁의 개인성)와는 상관이 없었다. 친밀도가 동원유발 그 자체와는 상관이 있었지만, 도와준 정도(노동량)에까지 영향을 끼치지는 않았다. 그리고 온라인 친구들 간의 연락빈도, 상호성, 관계균형성, 이타주의성향 등도 역시 도와준 정도(노동량)와는 상관이 없었다. 향후에는 상호성, 관계균형성, 이타주의성향 등을 기준으로, 도와준 사람들과 도와주지 않은 사람들을 비교 분석해 볼 필요가 있을 것 같다.

굽힘하중을 받는 T형 Spot용접 이음재의 피로강도 개선

任東鎭,裵東鎬 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

Acording as the automobile body structures have thinned and strengthened for reducing its fuel cost, each part of the body structure is inclined to be put very severe stress condition without regard to loading conditions. Particularly, by high stress concentration around the nugget which is only a few millimeter of its diameter, fatigue strength of the spot welded joint is lower than that of parent metal. Therefore, it has become very important to improve and estimate fatigue strength of the spot welded joint for structual rigidity, In this report, for the purpose of alleviating stress concentration at edge of the spot welded part and of improving fatigue strength of the spot welded T-type joint under bending load, we tried to exchange the shape of traditional circular nugget to ellipse, and experimentally analyzed static strain distribution around the spot welded part and estimated fatigue strength of the joint. We could find that laterally long elliptical spot welding could remarkably alleviate stress concentration at the edge of the spot welded part, and could also considerably improve the fatigue strength of the T-type joint under bending load.

Cure Kinetics of New Epoxy Resin System Using Xylok Hardener for Semiconductor Encapsulation

임동진,김환건 한국고분자학회 2000 한국고분자학회 학술대회 연구논문 초록집 Vol.2000 No.4

축산분뇨 처리방법 및 올바른 개선방향

임동진 단국대학교 최고농업경영자과정 1997 논문집 Vol.1 No.-

외국인 이주민에 대한 태도와 다문화정책의 추진방향 연구 - 정책전문가 설문조사를 중심으로 -

임동진 한국거버넌스학회 2015 한국거버넌스학회보 Vol.22 No.3

본 연구의 목적은 우리나라 다문화정책의 전문가(공무원, 교수, 연구자, 언론인) 50명을 대상으로 설문조사를 실시하여 외국인 이주민에 대한 태도와 바람직한 다문화정책 방향을 분석하고, 이에 따른 이론적·정책적 시사점을 제시하는 것이다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 외국인 이주민에 대한 차별이 다소 존재하였고, 특히 외국인근로자, 북한탈북자 등에 대한 차별이 가장 심각한 것으로 나타났다. 둘째, 외국인 이주민은 인력수급 불일치 해소, 사회의 다양성 증진 등에 있어서 우리사회에 기여하는 바가 있으나, 빈곤화에 따른 사회적 부담 가중, 공공지출 부담 증가 등의 위협요인도 상존하고 있는 것으로 나타났다. 셋째, 효과성이 가장 높은 다문화정책 프로그램은 ‘다문화가족지원센터 운영(여가부)’(25.3%), ‘다문화가족 방과후 교육 실시(교과부)’(12.1%), ‘1366 긴급지원 콜센터 운영(여가부)’(11.1%)의 순으로 나타났다. 넷째, 정책개선이 필요한 분야로 다문화정책 총괄기구(이민청) 설치(41.3%), 부처 간 유사 중복 사업의 조정(39.2%)의 순으로 나타났다. 마지막으로, 다문화정책 중 우선적으로 검토가 필요한 정책분야로는 인권침해 및 차별해소(44.0%), 단순기능 인력중심의 외국인력 구조개선(18.0%), 체류 및 거주요건의 완화(17.0%)의 순으로 나타났다. The purpose of this paper is to analyze the attitude on foreign immigrants and the desirable directions of the multicultural policy and to suggest theoretical and policy implications by surveying targeting experts of multicultural policy (public officials, professors, researchers, and journalists). The summaries of this study are as follows: First, there is a little bit discrimination on immigrants. Particularly, the discrimination against foreign workers and north Korean defectors is very serious. Second, immigrants in Korea contribute to resolving job mismatch and promoting social diversity, while the increase of social burdens due to immigrants’ impoverishment, and the increase of public expenditure for them are threat factors in Korean society. Third, the most effective program of the multicultural policy is the operation of the center for multicultural families (25.3%), the following are the after-school activities for multicultural families (12.1%), the calling center of emergency aid (11.1%) and etc. Fourth, the improvement areas for implementing the policy effectively are the establishment of new government agency for immigrants (41.3%), the adjustment of overlapping programs among government agencies (39.2%) in the order. Finally, the top priorities areas of the multicultural policy are primarily the elimination of discrimination and violation of human rights (44.0%), in sequence, restructuring of foreign workers having simple skills (18.0%), and relaxation of the stay and residence requirement (17.0%).

비선형 마찰을 포함하는 서보 시스템의 추종 제어기 설계에 관한 연구

임동진 漢陽大學校 工學技術硏究所 1997 工學技術論文集 Vol.6 No.1

In this paper, ramp tracking controller design procedures for servo systems containing Coulomb friction are discussed. The methods are based on augmenting the system with error integrators and feeding back the state varibles. When the system has a unavoidable limit cycle which arises from the interaction between the Coulomb friction and the integrators, the gain adjustment procedures to reduce the magnitude of the limit cycle are accomplished by adjusting the weighting matrix for the performance index instead of modifying the gains directly to obatain good transient responses. Also, it is concluded that in terms of limit cycle behavior it is better to use a single error integrator when the tracking errors are allowed, since there is no possibility of limit cycles for the single integrator case.

표면처리박강판의 Spot용접성과 용접 이음재에 대한 부식피로강도 평가

임동진,배동호,민준기 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-

인터넷을 이용한 원거리 실습 교육

임동진 대한전기학회 2006 전기의 세계 Vol.55 No.5

The Usefulness of Sagittal Reformation for Diagnosis of Sternal Fracture

임동진,한석,김영주 대한영상의학회 2014 대한영상의학회지 Vol.70 No.1

Purpose: The purpose of our study was to evaluate the usefulness of sagittal reformation of chest computed tomography for the diagnosis of sternal fracture after trauma. Materials and Methods: We retrospectively reviewed medical records and chest computer tomography (CT) of 716 patients in the emergency department after trauma between January and December 2010. Two radiologists investigated chest CT images. We investigated numbers and locations of sternal fractures on axial images only and on both axial and sagittal images for each radiologist. Results: First, radiologist found sternal fractures in 58 patients (70.7%) on only axial images, and 80 (97.5%) on both axial and sagittal images. Second, radiologist found fractures in 67 patients (81.7%) on axial image only and 81 (98.7%) on both axial and sagittal images. The sensitivity increased after adding sagittal reformation images for each radiologist (p < 0.05, respectively). On the axial images, the interobserver agreement was low (κ = 0.596) between the two radiologists. However, on both axial and sagittal images, the interobserver agreement increased (κ = 0.872). Conclusion: Sagittal reformation of chest CT increases the chance of diagnosis for sternal fracture and leads to early diagnosis resulting in appropriate treatment.