• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1989년도 한국자동제어학술회의논문집; Seoul, Korea; 27-28 Oct. 1989
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• pp.402-406
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• 1989

Since the control parameters of classical PID controller are fixed for all control period, it is not easy to produce a desired transition phenomena. We incorporate an iterative learning scheme to the linear controller so that it has more flexibility and adaptation capability especially in the transition period. In this paper a hybrid type learning controller is proposed in which fixed linear controller guides learning at the beginning stage. Once a perfect learning is achieved, then the control action is performed by only the learning controller. A computer simulation result demonstrates better performance during transition time than that with only linear PD controller.

• 대한간호학회지
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• 제26권1호
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• pp.165-176
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• 1996

The purpose of this study was to contribute to family nursing in the areas of reducing stress and improving coping for parents of mentally retarded children. Data were collected through self-report questionnaires during a period of 2 months between November 1994 and January 1995 in the Kyoung-in area. The subjects consist of 176 parents (88 mothers and 88 fathers) of mentally retarded children attending schools for the handicapped. The levels of general stress and of parental role stress were measured with the General stress scale and the Parental role stress scale, respectively. The coping scale developed by Folkman ＆ LaZarus was adopted to measure the level of coping, and the patterns of adaptation scale developed by Damrosch ＆ Perry was adopted to measure the patterns of adaptation. The data were analyzed by a SAS program using Fisher's exact test, paired t-test, and oneway ANOVA. The results are as follows ; 1. The level of general stress was significantly higher in mothers than in fathers. Mothers experienced a significantly greater level of parental role stress than fathers did. No significant difference in the level of coping was observed between mothers and fathers. There were differences in maternal and paternal patterns of adaptation. 2. The adaptation pattern of fathers was different according to their level of general stress, parental role stress and coping. The adaptation pattern of mothers was not different according to their level of general stress and parental role stress, but was according to their level of coping. 3. General stress experienced by fathers was different according to education, health status and support from their spouses. Satisfaction with family life, satisfaction with spouse and the support from spouse influenced coping used by fathers. Their level of parental role stress was not associated with any of their general characteristics. 4. In mothers, the level of general stress was different according to their health status, the level of parental role stress was related to satisfaction with family life and satisfaction with spouse. Their level of coping was associated with the sup port from spouse. The above findings indicate that mothers did not have more coping strategies than fathers did, despite the results which showed that mothers experienced greater stress than fathers did. Especially, the adaptation pattern of mothers was different according to their level of coping. Hence, nursing interventions directed at managing stress and improving coping should be used with mothers who use adaptation pattern 1. In particular, fathers should actively participate in parenting, and support their spouses.

• 한국보육학회지
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• 제19권3호
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• pp.99-113
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• 2019

본 연구는 만 1세 영아를 둔 어머니가 인식하는 어린이집 초기 적응과정 및 적응프로그램에 관하여 서울시에 거주하며 첫 아이가 18개월 또는 20개월에 어린이집에 처음 입소한 4명의 어머니를 대상으로 한 사례연구이다. 집단 및 개별면담을 통해 수집된 자료를 분석한 결과는 다음과 같다. 첫째, 둘째 임신 또는 입소통보전화를 받고 갑작스레 어린이집 입소를 결정하게 되었으며 자녀의 입소를 위해 어린이집 첫 방문 시 30분 내외의 짧은 시간 어머니가 본 교사의 인상과 말투, 표정 등이 어린이집을 선택하는데 큰 영향을 주었다. 분리불안 행동을 보이는 영아뿐 아니라 어머니도 적응과정을 겪었다. 어머니와 교사의 소통과 노력을 통해 어머니들은 영아가 적응해나감을 느낄 수 있었다. 둘째, 만 1세 영아의 적응과정을 통해 어머니가 인식한 적응프로그램의 차이에 대해서는 기관별로 프로그램 안내 및 실행에 있어 큰 차이를 보였다. 본 연구의 참여자들은 어린이집 유형과 상관없이 보편적이고 통합적인 적응프로그램이 필요하다고 생각하고 있었다. 이러한 연구결과를 바탕으로 국가수준의 만 1세 영아를 위한 어린이집 적응프로그램을 개발하는데 기초자료가 될 수 있을 것으로 기대한다.

• 전기학회논문지
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• 제61권2호
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• pp.321-323
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• 2012

Cognitive radio has been recently proposed to dynamically access unused-spectrum. Since the spectrum availability for opportunistic access is determined by spectrum sensing, sensing is identified as one of the most crucial issues of cognitive radio networks. The PHY-layer sensing, as a part of spectrum sensing in cognitive radio, concerns the sensing mechanism to determine channel to be sensed and to access. One of the important issues in the PHY-layer sensing control is to find an available sensing period and trade-off between spectrum sensing and data transmission. In this paper, we show the relationship between spectrum sensing and data transmission according to the sensing period. We analyze and propose the new scheme to evaluate optimal sensing period.

• 정보과학회 논문지
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• 제44권1호
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• pp.95-106
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• 2017

최근 높은 품질의 멀티미디어 콘텐츠를 제공하고 급증하는 트래픽을 처리하기 위해 HTTP 적응적 스트리밍이 등장하였다. HTTP 적응적 스트리밍 서비스의 QoE (Quality of Experience; 사용자 체감 품질)를 향상시키기 위해서는 평균적인 비디오 품질을 최대화해야 하며 품질 변경 주기, 품질 감소 폭, 그리고 끊김 현상을 최소화해야 한다. 최근 제안되었던 HTTP 적응적 스트리밍의 품질 조절 알고리즘들은 QoE 관련 특성을 세밀하게 고려하지 않아 높은 QoE를 제공하기 어렵다. 본 논문에서는 HTTP 적응적 스트리밍의 QoE 향상을 위해 SQA (Smooth Quality Adaptation) 알고리즘을 제안한다. 제안하는 알고리즘은 일정 기간 품질을 유지하고 비디오 품질의 급격한 감소를 방지함으로써 부드러운 사용자 체감 품질을 제공한다. 시뮬레이션을 통해 제안하는 알고리즘이 대역폭 감소 구간에서 품질 변경 폭을 감소시키고 품질 변경을 최소화하는 것을 확인하였다.

• 농촌지도와개발
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• 제6권2호
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• pp.119-139
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• 1999

While many factors could be mentioned to the rapid development of Israel for the last 50 years, it could not be overemphasized the critical role of large scale influx of Jewish immigrants not only in the process of achieving national independence but to the development of modernization. It is well known that mass influx of people in a relatively short period of time may cause serious social problems in various areas such as housing shortage, increasing crime rate, etc. Nontheless, Israel is avidly recognized as a country that successfully overcome such problems by means of creating systematic social integration systems and practicing various adaptation assistance programs for new immigrants. This study was concerned with such a successful social adaptation-assistance programs of Israel for large scale immigrants those who came from all over the world with different socio-economic background. In order to answer the research questions, following two areas of topics were researcher`s main concern. First, organizational structure and functions of the Ministry of Immigrant Absorption of Israel and Jewish Agency that are primarily responsible for the economic, occupational, social, and cultural integration of immigrants during their first three years (five years for housing-aid) in Israel. Second practical adaptation assistance programs such as direct absorption basket, Ulpan, Aliyah 2000, special projects of Keren Hayesod and two of Aliyah Absorption Centers are examined. And lastly some of implications and suggestions are provided in the conclusion section in relation with social adaptation-assistance and integration of reunified Korea, especially from the point of North Koreans.

• 동아시아식생활학회지
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• 제24권1호
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• pp.143-155
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• 2014

The purpose of this study was to analyze adaptation for Korean foods and satisfaction for university foodservice by nationality and residence period of Chinese and Japanese university students in Daejeon, Republic of Korea. Among 330 questionnaires distributed to Chinese and Japanese students, 294 complete questionnaires (89.1%) were analyzed. The questionnaire included two 5-point scales for measuring levels adaptation of for Korean food and satisfaction with university foodservice, respectively. Japanese students' level of adaptation for Korean food (3.16) was significantly higher than that of Chinese students (2.96). As the length of residence in Korea increased, the frequency of using university lunch service per week significantly decreased. The main factor when selecting a menu item was food taste (39.8%, 22.8%) in both Chinese and Japanese students, whereas the next main factor was preference (16.4%) in Chinese students and nutrition (18.7%) in Japanese students. The preferred cooking methods for meat were stir-frying (31.6%) and roasting (25.9%). For fish, Chinese students preferred braising (32.7%), whereas Japanese students preferred roasting (26.8%). Both Chinese and Japanese students preferred sukchae (45.6%, 43.1%) for vegetables. Factor analysis grouped 17 items measuring university foodservice into four factors, 'sanitation & employee service', 'physical environment', 'food' and 'customized menu & information' and the mean scores were 3.56, 3.30, 3.20 and 3.00, respectively. Chinese students were significantly more satisfied than Japanese students with the 'physical environment', 'sanitation & employee service' and 'customized menu & information'. These results suggest that efforts such as developing a greater variety of menu items with mild tastes and somewhat less flavor, applying preferred cooking methods, offering special menus for foreign students, providing nutrition information on menus, and offering a description of menu items in the foreign languages could improve Chinese and Japanese students' levels of satisfaction with university foodservice.

• 대한간호학회지
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• 제49권6호
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• pp.677-689
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• 2019

Purpose: This qualitative study aimed to develop a substantive theory of the process of adaptation to motherhood in Central Asian-Korean immigrants to Korea. Methods: Individual, in-depth interviews were conducted from July to September 2017, with 18 women who emigrated of Korean ethnicity from Central Asia to Korea, and took care of their baby for at least a year after their first delivery in Korea. The interviews were audio-recorded and transcribed verbatim. Data from the transcriptions were analyzed through Strauss and Corbin's grounded theory method, and data analysis was conducted simultaneously with data collection. Results: As a result of categorizing the interview data through the process of open coding, 10 categories, with 31 subcategories and 102 concepts were drawn, and "growth as a Central Asian-Korean mother in an unfamiliar, historical hometown" was found to be the core category of the process of adaptation to motherhood in Central Asian-Korean immigrants to Korea. Conclusion: A characteristic of the process of adaptation to motherhood in Central Asian-Korean immigrants to Korea, drawn from this study, is that it differs according to the level of initiative to carry out interaction strategies, and the use of various supportive social resources. The findings indicate the need for Medicare eligibility adjustment for antenatal care, the extension of the visa renewal period during childbirth, the development of web- or mobile application-based educational programs in Russian language, and the establishment of integrated visiting healthcare services, community service resources, and policy support to enable these women to utilize various supportive social resources.

• 산업융합연구
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• 제22권1호
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• pp.185-195
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• 2024

본 연구의 목적은 교대근무 남자간호사의 실무 적응 경험에 대하여 총체적으로 해석하는 데 있으며, 의미와 본질을 이해하기 위함이다. 자료수집 기간은 2022년 09월부터 2022년 11월까지였으며 상급종합병원 및 종합병원, 전문병원, 요양병원에서 근무하는 남자간호사 9명을 대상으로 내용의 포화가 될 때까지 심층면담을 진행하였다. 자료 분석은 Colaizzi의 현상학적 연구 방법에 따라 적용하였고 연구 결과 4개의 범주와 11개의 주제를 도출하였다. 4개의 범주는 '교대근무로 인한 변화', '성별 차이에서 오는 어려움', '업무수행을 위한 적응', '미래를 위한 성장과 방향성'으로 구성되었다. 본 연구를 통하여 교대근무 남자간호사의 실무 적응 경험에 대한 의미를 탐색할 수 있었으며, 간호업무 수행을 위한 근무환경 개선 방안과 남자간호사의 역량 강화 프로그램 개발 및 적용이 필요하다는 것을 알 수 있었다.

• 한국사회복지학회:학술대회논문집
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• 한국사회복지학회 2004년도 추계공동학술대회 자료집
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• pp.507-532
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• 2004

탈북자에 대한 관심의 고조에 탈북자에 대한 영구가 증가하고 있지만 아직도 다른 분야에 비하면 상대적으로 미약한 편이다. 본 연구는 탈북자를 대상으로 한 연구로는 비교적 많은 대상을 조사하여 과학적인 분석방법으로 그들의 적응 스트레스에 대한 사회적지지의 영향으로 추론하였다. 샘플의 크기는 171명이며 분석방법은 위계적 회귀분석을 사용하였다. 중요한 탈북자의 인구학적인 변인과 탈북 이후의 변인인 중간경유지의 체재기간, 한국에서의 거주기간, 한국에서의 교육유부가 통제변인으로 사용되었다. 연구결과에 의하면 무직상태는 그들의 적응스트레스로 나타나고 있으며 구조적 사회지지적인 친척의 수, 남한에서 사귄 친구와의 접촉빈도, 탈북자 친구와의 접촉빈도, 사회단체의 구성원 등은 개별적으로는 우울증 증상에 유의미하게 영향을 미치고 있지는 않지만 구조적 사회지지는 우울증 증상에 유의미하게 영향을 미치는 것으로 나타나고 있다. 기능적 사회적지지 중 정서적지지는 우울증증상을 감소시키지만 도구적지지는 우울증 증상을 증가시키므로 탈북자들의 상황에 따른 사회적지지의 적절성이 요청된다.