• Journal of Korean Academy of Nursing
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• v.45 no.3
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• pp.337-346
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• 2015

Purpose: This study was conducted to develop a mobile web-based pregnancy health care educational program for mothers who were at an advanced maternal age (AMA) and to verify the effects of the program on pregnancy health care. Methods: This program was developed using a web-based teaching-learning system design model and composed of 10 subject areas. This research was a quasi-experimental study using a non-equivalent control group pretest-posttest time serial design and data were collected from April 2 to May 3, 2014. To verify the effects of the program, it was used for 2 weeks with 30 AMA mothers (experimental group). For the control group, a classroom education booklet for pregnant women used with 31 AMA mothers. Results: The experimental group having participated in program had statistically significantly higher scores for knowledge (t=3.76, p <.001), self-efficacy (t=8.54, p <.001), and practice behavior (t=4.88, p <.001) of pregnancy health care, compared to the control group. Conclusion: The results of the program indicate that a Mobile web-based pregnancy health care educational program is effective in meeting the needs of AMA mothers and can be used as the prenatal educational program for AMA mothers and is appropriate as an educational media for theses mothers.

• Journal of Biomedical Engineering Research
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• v.30 no.1
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• pp.66-78
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• 2009

A mobile ultrasound scanner developed for use in point-of-care applications is introduced, which can not only provide ultrasound images but can also measure various bio-signals. The mobile ultrasound scanner is also designed to meet the demanding requirements for point-of-care diagnosis, such as battery-powered operation, portability in terms of size and weigh, and real-time wireless communications capability for remote diagnosis. To meet these requirements, an efficient beamforming method for high resolution imaging with a small number of active elements, a hardware efficient beamformer architecture, and echo processing algorithms with greatly reduced computational complexity have been developed. Experimental results show that the prototype mobile ultrasound scanner is fully functional and satisfies most of the design requirements.

• The KIPS Transactions:PartC
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• v.17C no.2
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• pp.153-158
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• 2010

Mobile IPv6 is one of method can keep Mobile node's session. To solve legacy Mobile IPv4's triangular routing problem, in Mobile IPv6, Mobile Node could directly communicate with Correspond node by Binding Update. But, attacker could interfere Return Routability Procedure that is Correspond node check Home address and Care of address reachable. At this result, Attacker is able to hijack Session to correspond node from Mobile node. In This paper, We propose new Binding Update scheme for solving that problem. Our approach is that MN gives association both home token and care of token using onewayness of keyed hash fuction. From security and performance analysis, we can see that proposed binding Update Scheme can achieve stronger security than legacy scheme and at the same time requires minimal computational overhead.

• Journal of muscle and joint health
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• v.26 no.3
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• pp.223-231
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• 2019

Purpose: This study aimed to design user interfaces of a mobile application for managing pressure injury patients in a long-term care hospital based on the user's needs. Methods: To reflect users' needs in the mobile application, the user interfaces in this study were designed in five steps: brainstorming and mind mapping, persona and scenario, needs list and priority, a draft version of flow chart and user interfaces and expert review. These steps were conducted with a step nurse at a long-term care hospital, a professor who majored in nursing informatics, a professor who had lots of research experiences about pressure injury and a wound ostomy continence nurse. Results: Two personas, scenarios and needs' lists were derived. Listed Needs included the followings; Accurate staging of pressure injury; Appropriate management by staging; Acquisition of professional knowledge about pressure injury; Acquisition of easy pressure injury information through text, picture and video; and Sharing pressure injury information in unit. The structure, menus and features of the pressure injury mobile application were visualized with user flow based on two personas' scenarios and needs' lists. Conclusion: Our study suggests and visualizes the key features of the 'Pressure Injury Guide', a pressure injury management mobile application for nurses in a long-term care hospital, which can be utilized by nurses, application developers, and related researchers.

• Quality Improvement in Health Care
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• v.21 no.2
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• pp.28-38
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• 2015

Objectives: The objectives of this research were to develop and evaluate a mobile application for navigation program for cancer patients who might experience some difficulties in obtaining and understanding further schedules, directions due to flooding information at a time and scattered educational materials. Methods: A mobile application was developed an educational mobile app for cancer patients based on a systematic instructional design model called ADDIE (Analysis, Design, Development, Implementation, and Evaluation) model. The developed application was evaluated by 76 users through a questionnaire of satisfaction. Results: A mobile app contains educational contents for cancer patients, based on their satisfaction, demand and knowledge about cancer education and information services. It contains management of symptoms, management of my schedule, and information about chemotherapy, FAQ, symptoms dangerous enough to contact the hospital, personal history about how to overcome cancer, hospital convenience facilities and education schedule of cancer center. A result of the evaluation of user's satisfaction showed 59.4% responding 'Satisfied' and 27.4% 'Very satisfied'. Conclusion: The personalized information and education contents for cancer patients by using the mobile application was given to cancer patient and then educational outcomes became more effective. The development of the application which persons can use regardless of time and place enables health care providers to acquire the foundation of the patients-oriented educational system. Education satisfaction and knowledge level was increased, after using mobile application.

• Journal of Korean Biological Nursing Science
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• v.26 no.2
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• pp.123-135
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• 2024

Purpose: The purpose of this study was to examine the effects of self-care intervention using a mobile instant messenger on hemodialysis patient's knowledge, self-efficacy, self-care behavior and physiological indices. Methods: A non-equivalent control group pretest-posttest design was used. The participants consisted of 38 patients who had a regular hemodialysis of Seoul National University Hospital. They were assigned to one of two groups; an experimental group (n = 19) that had self-care intervention for 8 weeks and a control groups (n = 19) that had routine hemodialysis treatment. The data collection was conducted from September 5, 2022 to October 29, 2022. The date were analyzed by Chi-square test, Independent t-test, and Fisher's exact test using SPSS Win 29 program. Results: There was a significant difference in self-efficacy (t = 3.42, p = .002) between experimental and control groups. There was no significant differences between the two groups in knowledge (t = 0.80, p = .428), self-care behavior (t = 0.09, p = .929), potassium (t = -0.82 p = .416), phosphorus (t = -0.03, p = .974), weight gain (t = 0.16, p = .867). Conclusion: Based on above results, it was verified that self-care intervention in this study was an effective indicator in improving the self-efficacy. There is a requirement to formulate comprehensive interventions capable of enhancing various indicators.

• Proceedings of the Korea Society for Simulation Conference
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• 2001.05a
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• pp.127-131
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• 2001

휴대용 단말기와 이동통신 기술의 발달로 무선 네트워크의 사용이 급증하면서 호스트가 이동중에도 지속적인 네트워킹이 가능한 프로토콜들이 개발되고 있다. Mobile IP는 이동 노드(mobile node)가 인터넷상의 임의의 다른 위치에 접속하여 IP 주소를 변경하지 않고, 홈 주소를 이용하여 통신하며 위치에 따른 care-of address에 의해 데이타를 터널링하여 전달받는다. 본 논문에서는 컴퓨터 시뮬레이션을 통해 self-similar 트래픽을 갖는 mobile IP의 성능을 분석한다. 일반적으로 데이타 트래픽, 바인딩 갱신시간, 버퍼관리 방법 등은 핸드오프 동안 mobile LP의 성능에 많은 영향을 비친다. 따라서 시뮬레이션 모델을 이용하여 self-similar 트래픽 환경에서 위에 언급된 성능 파라미터들의 영향을 분석한다.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.1
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• pp.233-240
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• 2014

According to the recent increasing trend of the ages, numbers of patients with chronic diseases are increasing and issues for health care are importantly emerged. In this thesis the research implements U-health care system for health care of patients with chronic diseases. The suggested system for health care of patients with chronic diseases composes bio measurement system, mobile gateway and medical information management server, and bio-signals are composed with modules such as electrocardiogram, blood pressure, blood sugar, oxygen saturation if configured as client. Blood sugar check was considered and implemented to be chosen the ways to transmit through bio measurement system or through gateway. Suggested bio measurement system and mobile gateway are transmitted through Bluetooth. The transmitted biodata is searched by observing health check through mobile gateway, by transmitting through network server, and by using client. By implementing bio signal observation system of patients with chronic diseases, present health check is available by monitoring measured bio data, and various bio signals are transmitted in the mobile environment.

• Journal of Korean society of Dental Hygiene
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• v.18 no.6
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• pp.987-1001
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• 2018

Objectives: This study aimed to provide basic data for future development and promotion of oral health care educational material. We examined the perception of teachers and parents on the use of smartphone applications as educational materials and the factors affecting the intent to use such materials in infants and toddlers. Methods: Teachers and parents of children enrolled in educational institutions in Seoul and Gyeonggi Province, Korea, participated in this study for a one-month period starting from August 2018. Results: The intent to use a freely available smartphone application for oral health education in infants and toddlers was high for both parents and teachers at 81.7% and 78.4%, respectively. The intent to use increased 10.089-fold when a child had unrestricted access to mobile devices, and 4.435-fold when the execution path required modification; however, the ease of use was not compromised. Additionally, the intent to use also increased 2.488-fold when a child had used an educational oral healthcare material that is currently available, and by 2.431-fold and 2.219-fold when a child had previous experiences with an educational mobile application developed for infants and toddlers. Conclusions: Our findings showed that the teachers and parents had a positive perception towards the use of mobile applications for oral health care education in infants and toddlers. We recommend the development and promotion of mobile-based educational applications on oral health care, which are tailored to the needs and oral characteristics of infants and toddlers to help develop good oral care habits.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.11
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• pp.2693-2698
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• 2013

As our country is currently facing "aging society," people demands for qualitively and quantitatively better social welfare services. In particular, the abruptly rapid increase in the elderly population requires various welfare services and medical care related to the elderly. It is urgent to resolve these demands. Also, IT technology in Korea is developing rapidly, and U-Health, a part of the Ubiquitous field is under the actively ongoing researches. In this paper, we studied the Elderly care system model suing U-Health technology. We designed the care system of the residential environment designed specific for the elderly. Additionally, based on that design, we studied the elderly care system using the ubiquitous technology. Since this elderly care system combines the existing community-based model and IT technology in conjunction with other mobile devices, we may supply a new care service application, thus solving the problems of the existing care and medical services.