• 보건의료산업학회지
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• 제11권2호
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• pp.117-127
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• 2017

Objectives : This study aimed to identify factors of adolescents' cell-phone dependency using Agnew's General Strain Theory (GST) and the perspective of adolescents' micro-systems. A second aim was to verify the moderating effect of self-esteem. Methods : In total, 2,046 students who participated in a study on KCTPS mid. 1 panel 3 Wave by the National Youth Policy Institute were examined in this research. Data were analyzed through descriptive statistics, factor analysis, reliability tests, and hierarchical linear regression using SPSS Ver. 22.0. Results : The strain factors had a positive effect on adolescents' depression, and depression had a positive effect on cell-phone dependency. In addition, self-esteem had a negative moderating effect between depression and cell-phone dependency. Conclusions : Factors of cell-phone dependency were identified. The findings of the study indicate that an intervention is required to lower strain and depression and to enhance self-esteem among adolescents.

• 동서간호학연구지
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• 제17권2호
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• pp.156-163
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• 2011

Purpose: The purpose of this study was to examine the influences of stress, loneliness, self-control on the addiction of cell phone use among university students. Methods: Data were collected through questionnaires from 467 students and were analyzed using descriptive statistics, t-test, ANOVA, Scheffe's test, Pearson's correlation coefficients and Stepwise multiple regression analysis with SPSS/WIN 19.0 program. Results: Out of the subjects, 1.5% were found to be addiction group, 89.9% at potential risk group, and 8.6% at non-addiction group. Addiction of cell phone use was significantly correlated with stress, loneliness and self-control. The influential factors affecting addiction of cell phone use over use problem, self-control, health problem, main using method and stress, which explained about 25.6% of the variance. Conclusion: The results of this study indicate that nursing intervention are needed to improve addiction of cell phone use, and that such variables should be carefully considered in intervention for university students.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.333-334
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• 2008

With the role of cell phones in today's society as a digital personal assistant as well as the primary tool for personal communication, it is possible to imagine the involvement of cell phones in almost any type of crime. The progression of a criminal investigation can hinge on vital clues obtained from a cell phone. This paper will be concentrated on CDMA system phones and focus on the data extraction for cell phone forensics. Especially, the data acquisition method of JTAG interface access to memory chip will be covered.

• Child Health Nursing Research
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• 제21권1호
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• pp.55-63
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• 2015

목적 본 연구의 목적은 초등학교 1-4학년생인 학령 초기 아동의 부모를 대상으로 아동의 휴대전화 중독 정도를 알아보고, 개인적 특성과 부모 관련 특성이 휴대전화 중독 정도에 미치는 영향을 파악하는 것이다. 방법 초등학교 1-4학년 아동의 부모 163명을 대상으로 아동의 휴대전화 중독 정도 및 자기 통제력과 부모의 휴대전화 중독 정도 및 휴대전화 사용 통제에 대한 설문지를 작성하도록 하였다. 수집된 자료는 SPSS/WIN 19.0 IBM 프로그램을 사용하여 t-test, one-way ANOVA, Pearson's correlation coefficient 및 stepwise multiple regression으로 검정하였다. 결과 학령 초기 아동의 휴대전화 중독 정도를 표준점수에 따라 분류하면, 일반 사용군이 86.5%, 위험 사용군이 9.2%, 고위험 사용군이 4.3%였다. 아동의 휴대전화 중독 정도는 아동의 게임 여부와 부모의 월수입에 따라 유의한 차이가 있었다. 또한 아동의 휴대전화 중독 정도는 부모의 휴대전화 사용 정도와 순 상관관계가 있었고, 아동의 자기 통제력 및 부모의 휴대전화 사용 통제와 역 상관관계가 있었다. 학령 초기 아동의 휴대전화 중독에 영향을 미치는 요인은 아동의 자기 통제력, 아동의 게임 여부, 부모의 휴대전화 중독 정도 및 부모의 휴대전화 사용 통제였으며, 이들 요인의 설명력은 24%였다. 결론 학령 초기 아동의 휴대전화 중독 정도는 개인적 특성뿐 아니라 부모 관련 특성에 의해 영향을 받는다는 사실을 알 수 있다. 따라서 학령초기 아동의 올바른 휴대전화 사용을 위한 중재방안과 부모교육 프로그램을 개발하여 실시할 때 개인적 특성뿐 아니라 부모 관련 특성을 고려해야 한다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.2
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• pp.317-320
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• 2006

Ships and their cargos have been managed safely by positioning report system. However, little attention has been paid to safety of crew's works with danger. The attempt that used PHS inboard was before by the present authors. However, the functions were just voice call and mail exchange. The data acquisition from the terminal by proper control was not possible. Thus the position of the terminal was not available. As for the cell phone of next generation, GPS receiver and wireless LAN are installed by manufacturers. Therefore, we propose a system which uses a cell-phone with GPS receiver on a ship in order to promote the safety of ship's crew. We checked the availability of cell-phone GPS receiver at thirty different points inboard. The positioning was not possible in the areas further than 4m from the window. Then, we proposed the system which follows the positions of the crews and confirms their safety inboard by using the VoIP (Voice over Internet Protocol) function by wireless LAN.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 춘계학술대회
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• pp.429-438
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• 2009

In order to find out the customer requirements and to develop new products more effectively, the Kano model and QFD(Quality Function Deployment), AHP(Analytic Hierarchy Process) developed and applied. But, Many companies difficult to select the CTQ(Critical to Quality) of new product. Especially the life cycle of cell phone is very short. In this thesis, the Kano model and AHP(Analytic Hierarchy Process) for finding the CTQ(Critical to Quality) for customer satisfaction are suggested. It is explained and discussed with the example of cell phone.

• ETRI Journal
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• 제34권1호
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• pp.138-141
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• 2012

This letter proposes a real-time digital image stabilization system for cell phone cameras without the need for frame memory. The system post-processes an image captured with a safe shutter speed using an adaptive denoising filter and a global color correction algorithm. This system can transfer the normal brightness of an image previewed under long exposure to the captured image making it bright and crisp with low noise. It is even possible to take photos in low-light conditions. By not needing frame memory, the approach is feasible for integration into the size-constrained image sensors of cell phone cameras.

• EDISON SW 활용 경진대회 논문집
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• 제4회(2015년)
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• pp.428-441
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• 2015

Corresponding to the high consumption rate of the selfie stick for cell phone camera, the design of the product is becoming diverse. However, relatively low cost selfie stick models are not strong enough to stand the weight of the cell phone. This results into a bending of the stick or the accidental fall of the cell phone by the failure of the holding unit. As a solution to the problem, design of selfie stick that is structurally strong enough to stand the weight of the cell phone with the minimum weight for the portability is proposed in this paper.

• Child Health Nursing Research
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• 제18권2호
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• pp.76-84
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• 2012

Purpose: This study was done to develop a cell phone addiction scale for Korean children. Methods: The process included construction of a conceptual framework, generation of initial items, verification of content validity, selection of secondary items, preliminary study, and extraction of final items. The participants were 268 children from grades 4 to 6 in two urban elementary schools. Construct validity, internal consistence reliability, and split-half reliability were used to analyze the data. Results: Nine items were categorized into 2 factors explaining 61.29% of total variance. The factors were labeled as obsessive compulsion (6 items) and dependency (3 items). Cronbach's alpha coefficient for the 9 items was .87, and Spearman-Brown coefficient was .83. Scale scores identified children as high risk users, at risk users, or average users by standard scores. Conclusion: The above findings indicate that the cell phone addiction scale for children has good validity and reliability when used with Korean children.

• 인터넷정보학회논문지
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• 제18권4호
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• pp.89-97
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• 2017

본 논문은 스마트 교육을 위한 청소년의 우울과 휴대폰 의존도, 부모의 양육행동, 또래관계의 구조적 관계를 확인하고자 하였다. 또 청소년의 우울과 휴대폰 의존 관계에서 부모양육행동과 또래관계의 매개적 효과를 확인하였다. 본 연구는 한국아동, 청소년패널 조사(KCYPS) 6차년도 중1패널의 자료 중 총 1897명의 청소년 응답과 보호자의 설문데이터를 분석대상으로 하였다. 자료분석을 위해 SPSS와 Amos프로그램을 사용하였다. 대상 변인들의 상관 및 기술통계분석을 위해서 SPSS을 사용하였고 부모의 양육행동의 경로분석과 매개효과 검증을 위해 구조방정식을 이용하였다. 검증결과, 청소년의 우울과 부모의 양육행동은 청소년의 휴대폰 의존도에 직접적인 영향을 미치는 것으로 나타났다. 그리고 청소년의 우울은 부모의 양육행동을 통해 간접적인 영향을 미치는 것으로 나타나 부분 매개효과를 확인할 수 있었다. 하지만 또래관계의 매개효과는 나타나지 않았다. 이상의 결과로부터 청소년의 휴대전화 의존을 예방하기 위한 방안과 스마트 교육 개발시 유의점에 등에 대해 논의하였다.