이주노동자의 지역별 특성과 지역사회 적응: 대구시 달서구, 경북 경산시, 구미시를 사례로

권혁민 대구대학교 다문화사회정책연구소 2012 현대사회와 다문화 Vol.2 No.1

한국 내 유입된 이주노동자의 수는 2000년을 기점으로 급격히 증가하여, 2011년 현재 543,447명에 이르렀다. 이러한 분위기에서 이주노동자에 대한 논의는 이주과정, 직장과 지역사회에서의 적응 및 특성 등의 측면에서 진행되어 왔다. 하지 만 이러한 논의들은 주로 전국 단위 또는 특정지역에 국한되어 있고, 이들이 실제로 거주하고 있는 지역별 특성에 관한 연구는 제대로 이루어지지 않고 있다. 따라 서 도시규모에 따른 이주노동자의 지역별 특성과 지역사회 적응과정을 비교·분석 해볼 필요가 있다. 본 연구는 도시규모에 따라 대구시 달서구, 경산시, 구미시를 대도시, 대도시 근교도시, 지방중도시로 구분하여 이주노동자의 특성 및 적응을 비교하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 이주노동자의 이주요인 및 과정은 지역별로 매우 다양한 응답을 보였다. 둘째, 한국 입국 후 취업한 직장의 특성은 대구시 달서구와 경산지역 이주노동자가 대체로 유사하게 나타났다. 셋째, 지역사회 생활은 대구시 달서구와 구미지역 이주노동자들이 비슷하게 나타났는데, 특히 주거지 유형, 지역사회 정체성, 소비 및 지출에서 동일한 응답을 보였다. 본 연구 결과는 앞으로 지역별 이주노동자 정책수립에 필요한 기초자료를 제공해 줄 것으로 기대된다. The number of immigrant workers in Korea has increased sharply since 2000, and reached up to 528,812 in 2008. Recent discussions about immigrant workers have been mainly focused on the aspects such as immigrant course and adaptation and characteristics in workplace and regional community. Those discussions, however, have been biased to national level or specific regions and thus studies on characteristics at local level in which they actually reside have been limited, it can be argued that and hence we need to investigate characteristics and adaptation of each region by comparing immigrant worker’s regional units classified by sizes of cities. The purpose of this study, therefore is to compare characteristics and accommodation of immigrant workers in three of different size of cities, that is, large city, suburban city of large city, local small-medium city, which are represented by Dalseo-gu in city of Daegu, city of Gyeongsan, and city of Gumi. The findings of this study are as follows: - First, the respondents about immigrant factors and immigration courses were highly varied by regions. Second, It is found that characteristics in workplace in which they work after immigration to Korea were similar between them in city of Dalsu-gu and Gyeongsan, especially in size of company, job in home country, reason for employment, and work hours. Third, It is found that there were simi- larity in life in regional community between workers in the city of Daegu and Gumi, especially in the type of residence site, identity of regional community, and consumption and expense, especially there is no difference in reason selection of residence site and identity in workplace. It is expected that the results of this study will contribute to policy making about immigrant workers of each region in future by providing fundamental data.

기업문화 유형이 정보기술 도입에 미치는 영향

김종민,권혁기 동의공업대학 2000 論文集 Vol.26 No.1

The information technology should be introduced for firms to cope with the environment and in the introduction of information technology means that the infrastructure or ability for organizational change is established. But whether the firm is successful to the introduction of information technology or not depends on its specific corporate culture. Therefore. the success in the introduction of information technology is prerequisite for a firm to success in the organizational change, and there are corelationships among these three factors. The result of empirical test and the implication of managerial aspects are as follows, In case of the relationships between the type of corporate culture and the introduction of information technology, If we classify the corporate culture as 4 types (development, group, rational, hierarchical culture), control-oriented culture has a negative impact on the success, In the case of the relationship between the type of corporate culture and the resistance against organizational change, If we classify as 4 types, control-oriented culture has a positive impact on the resistance. Therefore, in order to improve the success in the introduction of information technology we should change rigid, multi-hierarchical, skyscraper organization to flexible, small-hierarchical, flat organization. The change lessens the degree of resistance and increases the degree of success in the introduction of information technology. As a result, flexibility-oriented culture is critical to the success in introduction of information technology. Korean firms should make an effort to establish the flexibility-oriented corporate culture. We must promote the decentralization, open communications, democratic decision-making and strategic management in the long-run perspectives. Further research regarding this topic will contribute to increase the competitive power of Korean firms by improving the corporate culture.

전립선암과 전립선비대증 환자에서 혈청 유리 및 총전립선특이항원 측정의 의의

서혁준,박형민,권태균,정성광,김법완,이재태 경북대학교 의학연구소 2000 경북대학교병원의학연구소논문집 Vol.4 No.1

Purpose: This study was peformed to investigate whether the free to total PSA ratio(F/T PSA ratio) offers a better discriminant for the detection of patient with prostatic cancer(CaP) and those with benign prostatic hyperplasia(BPH) than serum total PSA alone. Materials and Methods: From September 1996 to February 1999, free and total PSA levels were measured on frozen sera samples of 154 men with BPH and 46 with CaP using immunoradiometric assay. Results: In all subjects, the mean total PSA was significantly higher in CaP group(72.57±66.58ng/ml) than BPH group(3.12±4.10ng/ml). The mean PSAD was significantly higher in CaP group(1.64± 1.86) than BPH group(0.08±0.01). The mean F/T PSA ratio was significantly lower in CaP group(0.19± 0.07) than BPH group(0.30±0.13). Among 41 subjects whose total PSA were between 4-20ng/ml, the mean PSAD was significantly higher in CaP group(0.37±7.16) than BPH group(0.17± 0.07), but the mean F/T PSA ratio was not significantly different between CaP(0.19± 0.10) and BPH group(0.25±7.13). By comparing the sensitivity and specificity of total PSA alone, PSAD and F/T PSA ratio on receiver operating characterislic (ROC) Cutie in all subiects and subiects with total PSA between 4-20ng/ml, F/T PSA ratio had no superiority than total PSA alone and PSAD for discrimination between CaP and BPH. Conclusions: We suggest that the F/T PSA ratio is not superior to total PSA alone and FSAD in the detection of prostatic cancer, and further evaluation of the usefulness of F/T PSA ratio should be required.

組織變化에 대한 抵抗이 情報技術導入 成功에 미치는 影響에 관한 연구

김종민,권혁기 동의공업대학 1999 論文集 Vol.25 No.1

In modern organization, during process of change and crises in rapid changing environment, there're several barriers in managing strategic changes in organization to make successful information technology(IT). They are inadequate management technique lacking ability to communicate logically on change decision, vision in the member of on change process and lack of support and last the consequential resistance to change, from uncertainty and fear on the future. Therefore, We should focus on the fact that successful management of resistance is a prerequisite on successful information technology. In large view, the research is based on hypothesis. The resistance to organizational change will have negative effect on IT success. Research on the 23 small firms of information and communication industry showed that the resistance to organizational change influence the IT success. In this study, it is found that the resistance to organizational change was negatively related with IT success. In conclusion, if an organization copy quickly with motivate and stabilize itself through successful resistance management, it can have relative strong competitive edge to others. So, management of resistance in organizational change is the matter of IT success. The outcome of this study can provide some useful theoretical implications as well as practical ones.

냉동 건조 탈회 동종골 이식후 골막이 골 형성 과정에 미치는 영향에 관한 실험적 연구

이동근,엄인웅,민승기,권혁도 大韓顎顔面成形再建外科學會 1995 Maxillofacial Plastic Reconstructive Surgery Vol.17 No.4

Periosteum in general is described as a specialized fibrous membrane of mesenchymal origin consisting of two basis layers : outer fibrous layer consists of irregularly arranged dense connective-tissue with fibroblasts, and inner osteogenic or cambial layer is composed of more loosely arranged fibers, greater vascularity and flatted spindle-shaped pre-osteoblasts. This periosteum may serve in controlling bone growth, especially mandibular growth has been emphasized. But, the periosteum enwrapping the facial skeleton have been studied for many years leaving a controversy in opinion regarding the function of these structures. We evaluated the bone formation activity of te periosteum in allogeneic bone grafts which bones are made of freeze-dried preparation preoperatively. We made the calvarial bone defects, 5×7mm sized, amd grafted with allogeneic bone in rats, which a half of specimens has dissected the overlying periosteum and a rest intacted. After bone grafting, we evaluated the capacity ofbone formation of periosteum, 1, 2, 4, 6, 8 weeks postoperatively. There are subtle differences of bone formation during early healing period after demineralized allogeneic bone grafting between control groups with periosteum and experimental groups without periosteum.

크론병에 대한 CoPPLX의 방어효과에 대한 연구

이호학,김유림,문창기,이재일,양병윤,김종수,이정민,정재혁,안석진,박상준,김윤권,김소연,김영중,조민구,최영자,장성조 圓光大學校 醫科學硏究所 2005 圓光醫科學 Vol.20 No.1

3.3 kW bidirectional charger design based on active‑clamp flyback circuits

Hyeok‑Min Kwon,Seung‑Min Nam,Jae‑Hyuck Choi,Chang‑Gyeo Jung,Jun‑Young Lee,Young‑Joo Kim 전력전자학회 2023 JOURNAL OF POWER ELECTRONICS Vol.23 No.3

A 3.3 kW bidirectional charger using an active-clamp flyback circuit with a symmetrical structure is proposed in this paper. Unlike the currently used bidirectional resonant converter, the proposed charger has a simple structure. By adopting a symmetrical design for the proposed charger, it can achieve the same bidirectional gain and efficiency in forward and reverse operation. In addition, it has the advantage of being able to respond to a wide output voltage range through simple pulse-width modulation (PWM) control. Thus, it can be applied to multi-purpose charger designs for a variety of batteries. An elementary flyback converter has the disadvantage of having electrical stress of the switch. An active-clamp circuit is applied to solve this disadvantage and to implement zero-voltage switching (ZVS) on all of the switches. Thus, high efficiency can be achieved at a high frequency using four 1200 V class silicon-carbide field-effect transistors (SiC-FETs). The feasibility of the proposed charger was verified using a prototype converter with input and battery voltages of 400 and 100–450 V, respectively.

클라이언트-서버 DBMS에서 그림자 트랜잭션을 이용한 트랜잭션 캐쉬 일관성 유지 기법

권혁민(Hyeok Min Kwon) 한국정보과학회 2001 정보과학회논문지 : 데이타베이스 Vol.28 No.1

트랜잭션간 캐슁을 허용하는 데이타전송 시스템은 각 클라이언트가 데이타베이스의 일부분을 동적으로 캐슁하므로 트랜잭션 캐쉬 일관성 유지 기법의 필요성을 야기한다. 지연 로킹 기법은 클라이언트가 액세스한 데이타에 대한 로크 설정 및 유효성 검사가 비동기적으로 이루어지는 검사기반 기법이다. 지연 로킹 기법은 매우 낮은 통신부담을 보이므로 높은 성능을 발휘할 수 있지만, 트랜잭션 철회율이 높은 단점이 있다. 이 단점에 대처하기 위하여 본 논문에서는 철회되는 트랜잭션 대신에 실행되기 위하여 관리되는 백업 목적의 트랜잭션인 그림자 트랜잭션의 개념을 제안한다. 그리고 이 개념과 지연 로킹 기법을 통합하여 그림자 트랜잭션을 이용한 새로운 트랜잭션 캐쉬 일관성 유지 기법을 제안한다. 그리고 모의실험을 통하여 제안된 기법의 성능과 검사기반 기법 중 가장 대표적인 적응적 낙관적 동시성 제어 기법과 캐슁 두단계 로킹 기법과의 성능을 비교한다. A data-shipping system that allows inter-transaction caching raises the need of transactional cache consistency maintenance protocol, since each client is able to cache a portion of the database dynamically. Deferred locking(DL) is a detection-based scheme, in which locks and validity check of accessed cached copies are requested asynchronously. Due to its low communication overhead, it could show a superior performance, but it tends to show a high ratio of transaction abort. For coping with this drawback, this paper develops a new notion of shadow transaction, which is a backup-purpose one that is kept ready to replace an aborted transaction. This notion and the locking mechanism of DL have been incorporated into deferred locking with shadow transaction. Using a simulation model, the performances of the proposed schemes are compared with those of two representative detection-based schemes, the adaptive optimistic concurrency control and the caching two-phase locking.

실시간 영상처리를 이용한 시각장애인용 보행 보조기구

권혁민(Hyeok-Min Kwon),고석환(Seok-Hwan Go),이경형(Kyoung-Hyung Lee),이우재(Woo-Jae Lee),박해준(Hae-Jun Park),정영석(Young-Seok Jung) 한국컴퓨터정보학회 2023 한국컴퓨터정보학회 학술발표논문집 Vol.31 No.2

인명구조용 계류비행형 멀티콥터의 동역학 모델링 및 비행 동특성 분석

권혁민(Hyeok-Min Kwon),이동규(Dong-Kyu Lee) 한국항공우주학회 2021 한국항공우주학회 학술발표회 논문집 Vol.2021 No.7