• 한국운동역학회지
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• 제31권1호
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• pp.37-43
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• 2021

Objective: The purpose of this study was to investigate the effect of mobile phone text messaging on the collision avoidance strategy for an approaching and stationary pedestrian. Method: Eighteen healthy young adults participated in this study. Each participant was asked to perform a task to walking with/without mobile phone text messaging and a task to avoid collisions with another pedestrian who was approaching or stationary during walking. Results: When text messaging with avoidance collision, it showed an early onset time, a larger mediolateral COM trajectory, trunk rotation angle and trunk rotation velocity (p<.05). Also, compared to an approaching pedestrian, when avoiding collision with a stationary pedestrian, it showed a later onset time, a lager avoidance displacement, mediolateral COM trajectory, trunk rotation angle (p<.05). Conclusion: Results suggest that mobile phone text messaging while collision avoidance leads to delay the perception stage and alters the adaptation stage. Consequently, pedestrian executed in an exaggerated avoidance action to create a greater safety margin when attending to mobile phone test messages while avoiding another pedestrian.

• 지역사회간호학회지
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• 제30권3호
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• pp.257-270
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• 2019

Purpose: This study is designed as a non-equivalent, control group pre/post-test for identifying effectiveness of a workplace walking program using a fitness tracker including individual counseling and tailored text messaging. Methods: Seventy-nine employees from two large companies were allocated into an intervention group (n=39) and a control group (n=40). Participants were asked to wear a fitness tracker (Fitbit Charger HR) during 24-hour, 5-days per week, for 10 weeks. The intervention group was provided with daily walking steps measured by Fitbit, weekly counseling with a specifically designed workbook, and seven weekly text messaging, and the control group with the fitness tracker only. Results: At the week 10 measurement, there were significant differences between the intervention and control groups in physical activity self-efficacy (p<.001), physical activity behavior (p<.001), daily walking steps (p<.001), systolic blood pressure (p=.033), and wellness (p<.001). Conclusion: These results suggest that the workplace walking program using a fitness tracker including individual counseling and tailored text messaging is more effective for persons with 10,000 steps/day. Therefore, it is recommended to actively apply this workplace walking program to inactive employees for encouraging regular physical activities and improving their wellness.

• 정보관리연구
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• 제35권4호
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• pp.1-16
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• 2004

본 연구는 이용자들이 휴대폰 문자메시지 시스템을 이용할 때 경험하는 인터페이스 상의 문제점을 찾아보고 향상된 인터페이스를 제공하는 휴대폰 문자메시지 시스템을 구현하기 위한 개선방향을 제시하고자 하였다. 휴대폰 문자메시지 시스템의 문제점으로는, 1) 전달받은 메시지의 내용이나 의도를 파악하기 어려움, 2) 문자메시지의 저장, 정렬, 탐색 등의 어려움, 3) 문자메시지의 길이 제한, 4) 문자입력의 어려움, 그리고 5) 비슷한 휴대폰 번호를 이용하기 때문에 종종 다른 수신자에게 잘못 전달되는 오류와 이로 인한 사회적인 문제 등이다. 본 연구의 초기 가정은 문자메시지 시스템을 이용할 때 발생하는 대다수의 문제점이 이용자 인터페이스 상의 이용성과 관련되어 있다는 점을 주목하였다. 75명의 대학생 이용자를 대상으로 일주일 동안 모든 문자메시지를 저장하고 각각의 메시지에 대한 간단한 일지를 기록하도록 하였다. 수집된 데이터 분석을 통하여 발견된 문제점들은 제한된 메시지 길이, 부자연스러운 문자입력방식, 감정 표현의 불충분함, 수신확인 기능의 결여, 보낸 메시지의 자동저장 기능이 제공되지 않는다는 점 등으로 나타났다. 연구의 결과로 나타난 이러한 문제점들은 문자메시지 시스템을 개선할 수 있는 방향을 제공할 것으로 기대된다.

• 대한간호학회지
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• 제43권4호
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• pp.557-567
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• 2013

Purpose: This study was done to identify effects of a smoking cessation program including telephone counseling and text messaging using stages of change for outpatients who have had a myocardial infarction (MI). Methods: This research was a quasi-experimental design with a nonequivalent control group pretest-posttest. The participants were 48 outpatients (experimental group=24, control group=24) recruited from one university hospital. They were randomly assigned to one of two groups: (a) an experimental group with telephone counseling (once a week) and text messaging (five times a week) using stages of change, and (b) a control group with traditional telephone counseling (once a month). Efficacy of the intervention was measured by comparing the two groups on smoking-related variables at 3 weeks and 12 weeks. Results: At the 3-week and 12-week measurements, there were significant differences between the experimental and control groups on smoking cessation self-efficacy (p<.001), nicotine dependence (p<.001), CO levels (p<.001), and smoking cessation rates (p<.001). Conclusion: The results indicate that the smoking cessation program including telephone counseling and text messaging using stages of change is effective for outpatients after a MI. Further attention should be paid to the intensity of the smoking cessation program and periods for long-term follow-up.

• 한국멀티미디어학회논문지
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• 제7권6호
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• pp.832-840
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• 2004

In ubiquitous environments, context is any information that can be used to characterize the situation of an entity such as a person or an object. Many sensors and small computers collect contexts and provide applications with them. Thus, ubiquitous applications need to represent contexts and exploit them effectively. In this paper, we design and implement a context-aware messaging system, called UMS (Ubiquitous Messaging System), based on Java and Jini. UMS can represent various contexts using XML scripts, and communicate text messages regardless of user's location using the proxy mechanism of Jini.

• 한국컴퓨터정보학회논문지
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• 제13권7호
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• pp.59-66
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• 2008

본 논문에서는 인스턴트 메시징(Instant Messaging), 채팅과 같은 텍스트 기반의 대화에서 현재 발화를 기준으로 대화의 주제를 파악하고, 대화 주제 전환 여부를 판단하는 기법에 대해 기술한다. 대화는 다른 종류의 글과 다르게 길이가 매우 짧아 적은 수의 단어를 사용하고, 두 사람 이상이 참여를 하며, 대화의 이력(History)이 현재의 발화에 영향을 미친다. 이러한 특성에 따라 본 논문에서는 사용자 발화 뿐 아니라 대화 상대자의 발화에서 추출한 키워드 기반으로 주제 탐지를 하며, 대화의 이력도 고려하여 대화 주제 탐지의 정확도를 높힌 연구 결과를 기술한다. 대화주제 전환 탐지는 이전 발화와 현재 발화에서 탐지된 주제의 유사성을 계산하여, 유사성이 낮은 경우에 전환 탐지가 이루어졌다고 판단하였다. 본 논문의 실험에서 대화 주제 탐지는 88.20%. 대화 주제 전환 탐지는 87.36%의 정확도를 얻었다.

• 대한인간공학회지
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• 제23권2호
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• pp.105-120
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• 2004

With the new technology and the popularization of mobile phone. the functions and designs of mobile phone have been varied rapidly. However. based on the user's level of familiarity on mobile phone function and knowledge of information technology. the using behaviors of mobile phone. especially between the young users who are well acquainted with the latest function and technology and the over middle-aged users who are relatively not. would be quite different. A survey was conducted to investigate the various using behaviors of mobile phone in different age groups. The total number of six hundred and sixty-seven people from age seventeen to sixty participated in this study. The participants were divided into young group (age between 17 to 29) and the over middle-aged group (age between 40 to 60) to compare the difference group considered design. price. and function of the mobile phone as three important factors. on the other hand. the over middle-aged group considered quality of communication. price and ease of use as three important factors. All the respondents of the young group know how to use the text messaging function. however for the over middle-aged group. 40% of the respondents knows how to use the text messaging function. The over middle-aged group seemed mainly use the mobile phone for voice communication. however the young group had a tendency to communicate each other with short text message rather than through voice conversation. Twenty percentage of young group responded that they had an experience of pain or discomfort at the thumb. the thenar eminence area. or carpus area during pushing the mobile phone keypad. The excessive frequent use of keypad may cause the risk of repetitive strain injury (RSI). The results of this study could provide important information to understand the way of using mobile phone in different age groups. and also could be used to design and market the mobile phone.

• 한국산학기술학회논문지
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• 제15권12호
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• pp.7248-7258
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• 2014

본 연구는 전화상담과 문자메시지 제공 금연프로그램이 중재 횟수를 달리한 실험군1, 실험군2와 대조군의 금연 자기효능감, 니코틴의존도, 호기일산화탄소 농도, 금연성공률에 미치는 효과를 알아보기 위한 유사실험연구로 허혈성 심질환자 60명을 대상으로 하였다. 프로그램효과를 측정한 결과, 실험군은 대조군에 비해 금연 자기효능감, 금연성공률은 유의하게 증가하였고, 니코틴의존도, 호기 일산화탄소 농도는 유의하게 감소하였다. 또한 실험군1은 실험군2에 비해 금연 자기효능감, 금연성공률은 유의하게 증가하였고, 호기 일산화탄소는 유의하게 감소하였으나, 니코틴의존도에는 유의한 차이가 없었다. 따라서 허혈성 심질환자에게 제공한 전화상담과 문자메시지 중재 금연프로그램은 금연성공률의 향상에 효과가 있으며 중재 횟수에 따라 더욱 효과가 있는 것으로 나타났다.

• 한국산업경영시스템학회:학술대회논문집
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• 한국산업경영시스템학회 2002년도 춘계학술대회
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• pp.279-284
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• 2002

Nowadays, due to the popularization of mobile phone, the functions and using manners of mobile phone have been varied. According to Korea National Statistical Office, the numbers of domestic mobile phone user were 30 million at the end of March 2002. A survey was conducted to investigate the various using manners of mobile phone, especially the young ones from 15 to 28 years old. Two hundred and sixty people participated in this study. According to the result of this study, text messaging was one of the major functions of the mobile phone for the young people. Also, continuous and repetitive use of small key pad of mobile phone for text messaging could cause the repetitive strain injury on hand, especially fingers.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2011년도 춘계학술대회 논문집
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• pp.1481-1482
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• 2011