• 한국통신학회논문지
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• 제38B권12호
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• pp.962-966
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• 2013

차세대 인터넷은 음성이나 비디오 트래픽과 같은 실시간 트래픽을 원활히 처리할 수 있는 QoS 보장이 요구된다. 본 연구는 이미 검증된 Q-CBQ기법을 사용하는 MPLS 라우터에서 멀티미디어 객체 전송 프로토콜인 Q-MOTP 프로토콜에 QoS지원을 위한 자원관리자에 대한 연구로서 자원관리자는 주기적으로 시스템 자원 정보를 보고하거나 자원의 과부하가 발생했거나 또는 QoS 관리자의 요구에 의해서 시스템 자원 정보를 보고한다. 보고된 자원 정보를 이용해서 QoS 관리자는 합의된 QoS 요구 수준을 만족하도록 관리한다.

• 한국보건간호학회지
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• 제31권1호
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• pp.149-161
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• 2017

Purpose: This phenomenological study was conducted to describe and understand the experience of vulnerable elderly individuals with diabetes by identifying the meanings and structures of the experience. Methods: The data were collected through in-depth interviews of six vulnerable elderly individuals with diabetes aged over 65 years. The interview data were audio-recorded, transcribed verbatim and checked for accuracy. The Colaizzi's method of phenomenology was used to analyze the data. Results: Four theme clusters were extracted as follows: 'Life adversity', 'Adaptability to the life', 'Replacement of absence of family with social support', 'Difficulty of self-care'. Conclusion: The results provide an in-depth understanding of life experiences of vulnerable elderly individuals with diabetes. The findings will be useful to nurses caring for this population.

• 여성건강간호학회지
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• 제22권1호
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• pp.48-60
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• 2016

Purpose: This study was to explore the postnatal care experiences among first time Chinese immigrant mothers living in Korea. Methods: Data were collected by focus group interviews with 12 first time Chinese immigrant mothers utilizing 3 focus groups. After obtaining written informed consent from all participants, each session of the focus group was audio-recorded and transcribed verbatim. Data were analyzed by content analysis to identify major themes. Results: Four major themes for postnatal care experiences were extracted from the data as follows. 1) Range over traditional, modern, Korean or Chinese postnatal care, 2) Struggle with newborn care, 3) Another struggle with breastfeeding, and 4) Difficulties in becoming a mother as an immigrant. Conclusion: Based on their postpartum care experiences, it is concluded that participants requested more professional practical and individualized education/training for successful breastfeeding and newborn care. Health care providers need to develop and implement integrated support and mentoring programs that include information and peer support system for the first time Chinese immigrant mothers living in Korea. This would decrease the difficulties of becoming a mother.

• 성인간호학회지
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• 제19권1호
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• pp.12-23
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• 2007

Purpose: The purpose of the present study was to explore the meaning of quality of life in patients with chronic cardiovascular disease. Methods: A grounded theory method guided data collection and analysis. A total of 16 adult outpatients with chronic cardiovascular disease was participated. Data were collected through individual in-depth interviews. All interviews were audio taped and transcribed verbatim. Coding was used to establish different concepts and categories. A theoretical sampling technique was used to obtain diverse data from many relevant categories. Results: Seven categories were extracted, and they divided into constructing and intervening factors of quality of life. Constructing factors were uncertainty, recovery in the sense of control and maintaining social life. Intervening factors were symptom experiences, social support, taking care of themselves, and reflecting life. 'Keeping restrictive conditions under control' was emerged as a core category. The meaning of quality of life in patients with cardiovascular was explained according to the levels of keeping restrictive conditions under control. Conclusion: The result of this study may contribute for health professionals to understand the quality of life in patients with cardiovascular disease.

• 한국직업건강간호학회지
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• 제18권2호
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• pp.141-152
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• 2009

Purpose: The purpose of this research was to describe the decision making of nurses in a VIP ward. Method: The methodology of collecting and analyzing the data was based on the grounded theory of Strauss and Corbin (1998). The data were collected through an in-depth interview, which were audio-taped and transcribed. The data were collected from 10 nurses from July to November 2007. Results: The core category on VIP ward nurses' decision making was named as "adjusting with flexibility and deepened insight". The causal condition was established by 'the patients who wanted to be treated specially'. The contextual conditions included 'caring patients from various departments', 'differences depending on the nurses' clinical experience', and 'client-centered atmosphere in the VIP ward'. The intervening conditions included 'problem solving styles of nurses', 'attitudes of patients and family members', 'nurse-doctor relationships', and 'accessibility to information'. It was confirmed that nurses changed their action-interaction strategies depending on the intervening conditions, thus resulted in the nurses' role conflict and the need to expand their consciousness. Conclusion: The result of this study indicates that nurse's decision making depends on their experiences and the nature of social context in which nursing occurs.

• 성인간호학회지
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• 제26권2호
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• pp.203-213
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• 2014

Purpose: The purpose of this study was to understand and describe the every day life experience of patients with acute myocardial infarction (AMI) during the recovery period after Percutaneous Coronary Intervention (PCI) using a qualitative approach. Methods: Twelve patients with AMI participated in this study. Their age ranged from 42 to 75. The data were collected by individual in-depth interviews and all interviews were audio-taped and transcribed verbatim. The transcribed data were analyzed using traditional qualitative content analysis. Results: Six sub-themes emerged from the data as follows: Getting to know about illness, getting motivated for health behavior, putting an effort into health behavioral change, having difficulties maintaining health behavior, setting up coping strategies for health behavior and having a need for a tailored education. The results of this study showed how the health behaviors of patients with AMI are related to their every day life experiences. Conclusion: The results of this study could help health professionals to better understand patients with AMI and design effective educational interventions to improve their health behaviors.

• 한국멀티미디어학회논문지
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• 제17권4호
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• pp.506-513
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• 2014

In recent years, research on user's activity recognition using a smart phone has attracted a lot of attentions. A smart phone has various sensors, such as camera, GPS, accelerometer, audio, etc. In addition, smart phones are carried by many people throughout the day. Therefore, we can collect log data from smart phone sensors. The log data can be used to analyze user activities. This paper proposes an approach to inferring a user's physical activities based on the tri-axis accelerometer of smart phone. We propose recognition method for four activity which is physical activity; sitting, standing, walking, running. We have to convert accelerometer raw data so that we can extract features to categorize activities. This paper introduces a recognition method that is able to high detection accuracy for physical activity modes. Using the method, we developed an application system to recognize the user's physical activity mode in real-time. As a result, we obtained accuracy of over 80%.

• 성인간호학회지
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• 제21권4호
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• pp.367-378
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• 2009

Purpose: The purpose of the study was to understand and describe health-related experience of women with physical disabilities, using feminist qualitative approach. Methods: Eight women with physical disabilities participated to the study. Their mean age was 43, ranging from 39 to 67 years old. The data were collected by individual in-depth interviews and all interviews were audio-taped and transcribed verbatim. The transcribed data were analyzed using traditional qualitative content analysis from a feminist perspective. Results: Six major categories emerged from the data. Category 1: "Isolation and alienation from the world.", Category 2: "A distorted self-image of physically disabled body.", Category 3: "Difficulties due to a fixed gender role.", Category 4: "Constant suffering from chronic pain.", Category 5: "Health problems that they have to endure by themselves.", Category 6: "Sublimation through self-reliance." The results of the study show how Korean women with physical disabilities suffer from social stigma, indifferences, and discriminations and struggle to survive in these unfriendly surroundings. Conclusion: The results of the study would help health professionals in designing effective intervention to improve health and to empower women with physical disabilities by providing deep understanding and critical insights of those women.

• 종양간호연구
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• 제4권1호
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• pp.71-81
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• 2004

The purpose of the study was to understand and explore the quality of life in cancer patients in the context of a Korean culture and society. Grounded theory method guided the data collection and analysis. A total of 10 cancer patients was selected by a theoretical sampling. The data were collected by an open question. All interviews were audio taped and transcribed verbatim. Constant comparison analysis was employed to analyze the data. As the results, eighty-five concepts and twelve categories were emerged, and "keeping well-being status" identified as a core category. Quality of life related categories derived from this study will academically contribute to the understanding and expansion of theoretical bases for quality of life of Korean cancer patients and to the contexts for the development of measurement of quality of life. Furthermore, they will function as the foundation of a intervention development for quality of life.

• 디지털콘텐츠학회 논문지
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• 제8권3호
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• pp.371-376
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• 2007

차량 내부에서는 컨트롤러, 센서, 텔레매틱스 단말기, 내비게이션, 오디오 및 비디오 등 다양한 모듈들이 CAN이나 MOST와 같은 차량 네트워크를 통해 연결되어 있다. 게다가, 사용자는 이동 중에 무선 모바일 네트워크를 이용하여 ITS나 인터넷에 접속할 수도 있다. 이러한 네트워크의 다양한 활용은 데이터 해킹, 프라이버시 침해, 위치 추적 등과 같은 많은 보안 문제를 야기하게 된다. 또한, 차량 운영 데이터(센서, 제어 데이터)를 해킹함으로써 차량을 고장 내거나 사고를 유발할 수 있는 가능성도 점차 커지고 있다. 본 논문에서는 CAN이나 MOST와 같은 차량 네트워크에 적용할 수 있는 암호화 기능을 가지는 보안 모듈을 제안한다. 이 보안 모듈은 DES, 3-DES, SEED, ECC 및 RSA와 같은 일반적인 암호화 알고리듬과 전자서명 기능을 제공하게 된다.