• 디지털융복합연구
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• 제10권9호
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• pp.175-184
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• 2012

본 연구의 목적은 스마트폰의 지각된 특성이 심리적 태도에 미치는 영향 관계를 규명하는데 있다. 연구목적을 달성하기 위해 스마트폰의 지각된 특성의 변수로서 지각된 유용성과 지각된 사용용이성을 설정하였다. 그리고 심리적 태도 변수로는 안도감과 의존감을 결과 변수로는 사용자 만족을 설정하여 연구모델을 제시하였다. 연구모델을 실증 분석하기 위하여 국내 대학생을 대상으로 설문조사를 실시하였다. 본 연구의 이론적 시사점은 스마트폰의 지각된 특성과 심리적 태도를 연구하는데 이론적 토대를 마련하였다. 실무적 시사점은 첫째, 스마트폰의 지각된 특성인 유용성과 사용용이성은 심리적 태도인 안도감과 의존감에 긍정적인 영향을 미친다. 둘째, 스마트폰에 대한 의존감은 사용자 만족에 영향을 미치지만 안도감은 사용자 만족에 영향을 미치지 않는 것으로 나타났다.

• 한국학교ㆍ지역보건교육학회지
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• 제15권1호
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• pp.61-75
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• 2014

Objectives: The objective of this study is to analyze the relationship among self-esteem, optimism, and smart phone addiction of middle school students and examine the variables on smart phone addiction. Methods: Data were collected by questionnaires from 475 middle school students in U city. To analyze the sample survey data, descriptive statistics, t-test, ANOVA, duncan test and multiple regression analysis were performed with SPSS/WIN 15.0. Results: There were statistically significant differences among general characteristics sex, grade, school record, satisfaction with school life, economic state, romantic relationship, the period of smart phone usage, and smart phone usage fee with smart phone addiction. Also, there were significant negative relationships between self-esteem and optimism. Significant factors that affect smart phone addiction in middle school students were sex, self esteem, smart phone usage fee. These variables explained 10.8% of smart phone addiction. Conclusions: The results of this study reveal that the significant factors of smart phone addiction are sex and self-esteem. This study indicates that it is important to develop self esteem promotion programs that focus on sex trait in order to prevent smart phone addiction on adolescents.

• Journal of Information Processing Systems
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• 제7권1호
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• pp.209-220
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• 2011

One of the major factors influencing the phenomenal growth of the smart phone market is the active development applications based on open environments. Despite difficulties in finding and downloading applications due to the small screens and inconvenient interfaces of smart phones, users download applications nearly every day. Such user behavior patterns indicate the significance of smart phone applications. So far, studies on applications have focused mainly on technical approaches, including recommendation systems. Meanwhile, the issue of culture, as an aspect of user characteristics regarding smart phone use, remains largely unexamined throughout the world. Hence, the present study attempts to analyze the highest ranked smart phone applications downloaded and paid for that are ranked the highest in 10 countries (Korea, Japan, China, India, the UK, USA, Indonesia, Canada, France, and Mexico) and we then derive the CDSC (Cultural Dimensions Score of Content) for these applications. The results derived are, then, mapped to the cultural dimensions model to determine the CISC (Cultural Index Score for Country). Further, culturally significant differences in smart phone environments are identified using MDS analysis.

• 디지털산업정보학회논문지
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• 제13권1호
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• pp.173-183
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• 2017

The purpose of this study is to find out the difference of sense of self-efficacy and stress encountering strategy of university students under the stress situation depending on the smart-phone user group (addiction group, general user group). For this purpose, the study issues are established as follows. First, it has analyzed what is the correlation of smart-phone addiction, sense of self-efficacy, and stress encountering strategy. Second, it has studied if there is any difference of sense of self-efficacy and stress encountering strategy for the smart-phone user group. In order to verify such study issues, For 1,670 university students in the Chungcheong area, smart-phone addiction scale, sense of self-efficacy scale, and stress encountering method scale were administered. Looking into the study result, first, as a result of the relativity analysis, it displayed the correlation of preference of test difficulty, self-control efficacy and important negative from the smart-phone addiction and sense of self-efficacy. In addition, all sub-variables of smart-phone addiction and avoidance orientation from the stress encountering strategy displayed the important positive correlation, and from the smart-phone addiction, the virtual world orientation and pursuit of social-support displayed the important negative correlations, and all sub-variables (interference with ordinary living, virtual world striving direction, withdrawal, resistance) of smart-phone addiction and problem solving-orientation displayed the negative correlation. Second, as a result of verification for the difference of the smart-phone addiction group and general use group following the sense of self-efficacy, the general use group is shown to have higher self-control efficacy sense than the addiction group. And third, as a result of verifying the difference of stress encountering following the smart-phone addiction group and general use group, the addiction group is shown to be lower than the general use group in terms of social support pursuit and problem solution orientation with the avoidance orientation shown to be higher. This type of result is expected to provide the base data when developing the smart-phone addiction preventive education program by finding out in details for the characteristics of smart-phone addiction group for university students.

• 한국인터넷방송통신학회논문지
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• 제12권5호
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• pp.99-105
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• 2012

스마트 폰 어플의 급속한 개발과 보급으로 우리는 일상생활에서 많은 유용한 모바일 서비스를 이용하는 것이 가능하게 되었으며, 특히 스마트 기기의 카메라 모듈을 이용한 QR 코드 응용과 같은 흥미로운 어플들이 지속적으로 개발되고 있다. 우리는 스마트 기기의 카메라 모듈을 이용하여 촬영되는 피사체의 실물 크기를 측정하는 어플을 개발하는 과정에서 국내에 시판되는 안드로이드 기반 스마트 폰들의 기종이나 시스템 버전에 따라 촬영되는 피사체의 이미지의 크기나 모양이 매우 상이하게 나타난다는 점을 알게 되었다. 본 논문에서는 스마트 기기들의 카메라 모듈로 촬영할 때 스마트 폰 기종과 시스템 버전에 따라 나타나는 차이점들을 면밀히 알아보고, 스마트 폰 카메라로 촬영한 결과 영상에서 피사체의 실물 크기에 영향을 미치는 카메라 모듈의 다양한 특징들을 비교 분석하여, 이를 바탕으로 스마트 폰 카메라 모듈을 이용한 피사체 크기 계측 어플을 개발하는데 응용하고자 한다.

• 융합정보논문지
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• 제7권6호
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• pp.103-111
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• 2017

대학생의 학교생활적응과 자아존중감 및 자기통제력이 스마트중독에 미치는 융합적 요인을 파악하기 위함이다. 광주 지역 소재한 대학교 380명 대상으로 설문조사하였다. 자료는 t-test, one-way ANOVA, Pearson의 상관분석을 분석하였다. 일반적 특성에 따른 스마트폰 중독은 4학년이 가장 낮게 나타났고 보건계열이 높게 나타났다. 스마트폰 이용실태에 따른 스마트폰 사용시간은 3시간 미만이 가장 낮게 나타났다. 일반적 특성에 따른 학교생활 적응과 자아존중감 및 자기통제력은 대학생활 만족도와 전공 만족도에서는 만족도가 높아질수록 높게 나타났다. 스마트폰 중독에 가장 영향을 미치는 요인은 지각된 스마트폰 중독여부이었고, 자아존중감과 자기통제력이 높을수록 스마트폰 중독현상이 약한 것으로 나타났다. 그러므로 대학생들의 자아존중감과 자기통제력을 높일 수 있는 교육 및 프로그램을 개발하고 스마트폰 중독을 예방할 수 있는 방안에 대한 모색이 필요할 것으로 사료된다.

• 한국산업융합학회 논문집
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• 제23권5호
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• pp.747-756
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• 2020

In recent years, measurement in a smart-phone environment is attracting attention in various fields due to its easy set-up process, various functions, convenience and expandability. Even in the field of safety evaluation and maintenance of large-scale infra-structures, the appropriate application of these effective and convenient measurement techniques can be of great help. In this paper, an experimental study was conducted to investigate the effectiveness, problems and complementary methods of applying smart-phone accelerometers to the measurement in infra-structure such as bridges. In model bridge subjected to impact and moving loads, the measured accelerations using a smart-phone and a professional accelerometer were directly compared in time domain. And the statistical and frequency characteristics of the measured signal and transfer function were also examined in frequency domain. The results show that the accuracy of measurement using smart-phone sensor is primarily affected by its incomplete sampling performance. In conclusion, smart-phone sensors cannot be considered suitable for precise assessment, where measurements must be accurate over a wide frequency range, but we can say that the technique is still useful and fairly accurate for some purpose over a limited frequency range, such as the low pass frequency range, which is a major concern for civil structures.

• 디지털융복합연구
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• 제9권4호
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• pp.103-113
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• 2011

본 논문은 스마트폰특성 중심으로 기술수용 모형이 마케팅성과에 미치는 영향을 연구하였다. 연구결과 스마트폰의 유용성은구전의도 및 재구매의도에 영향을 미쳤고, 용이성은 구전의도에는 영향 을 미쳤으나 재구매의도에는 영향을 미치지 않음을 확인하였다. 이는 언제 어디서나 즉시 접속되는 특성은 다시 스마트폰을 구매하는데는 영향을 없음을 알수 있었다.

• 대한스포츠의학회지
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• 제36권4호
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• pp.189-196
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• 2018

Purpose: The purpose of this study was to compare the difference of body mass index (BMI) to smart phone proficiency in men and women over the age of 60. Methods: Patients were divided into three groups with high (n=33), average (n=34), and low (n=33) smart phone proficiency. Fitness characteristics related to smart phone usage were evaluated by measuring cardiorespiratory endurance, grip strength, eye-hand coordination. As well, smart phone proficiency was evaluated by a self-reported questionnaire and a smart phone usability task that was composed of two categories: usage of the smartphone device itself and usage of phone applications. The differences in BMI of the subjects was analyzed by analysis of covariance adjusting for independent variables including age, smartphone usage period, eye-hand coordination, education and income. Results: There was a significant difference in BMI among the three groups after adjustment of age, eye-hand coordination, smartphone usage period, education and income. The results showed that the self-reported questionnaire showed a significant difference in BMI between high proficiency and low proficiency groups (high $24.88{\pm}2.46$, low $23.37{\pm}2.56$; p=0.037). Smart phone usability test results also showed a significant difference in BMI among the three groups (high $25.18{\pm}2.58$, low $23.15{\pm}2.6$; p=0.000 and high $25.18{\pm}2.58$, middle $23.57.7{\pm}1.69$; p=0.010). Conclusion: Our results suggest that high smart phone proficiency shows increased BMI in the elderly. This study suggests that people over the age of 60 who have high smartphone proficiency should be cautious of an increased BMI score.

• 한국정보시스템학회지:정보시스템연구
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• 제20권2호
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• pp.57-80
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• 2011

This study analyzed the effects of smart phone using for business on work performance in the field. We classified functional and practical aspects of smart phone affecting employee's work performance through former studies. As independent variables, we selected portability of equipment, rapidity of information and ease of use for functional side, and selected fit to work and subjective norms for practical side. And dependent variable was work performance. We also suggested that innovation resistance would be a moderator. The results showed that the effect of work performance was influenced by portability of equipment and fit to work. However, hypotheses on moderating effects of innovation resistance were not supported. This study made a discrimination in terms of an application phase of smart phone as against former studies. The results of this study will provide practical implications for related enterprises in the field to develop ways of using smart phone as an effective strategy.