• 한국엔터테인먼트산업학회논문지
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• 제15권4호
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• pp.309-315
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• 2021

본 연구의 목적은 고등학생들의 스마트폰 과의존정도와 우울 수준에 대한 상관관계를 분석하여, 그 관련성을 파악하는 데 있다. 연구대상은 고등학생 50명이다. 대상자들의 스마트폰 과의존 정도에 대한 분석은 스마트폰 과의존 청소년 척도를 활용하여 분석하였으며, 우울 수준에 대한 분석은 한국판 우울증 선별도구를 활용하였다. 분석결과, 스마트폰 과의존 정도와 우울 수준에 대한 분석결과 정적 상관관계가 나타났으며, 고등학생들의 스마트폰 과의존 정도가 높아질수록 우울 수준이 증가하는 것으로 나타났다. 이에 통계적 분석을 실시한 결과, 통계적으로 유의미한 차이가 나타났다. 고등학생들의 스마트폰 과의존 정도가 높아질수록 우울 수준을 증가시킬 수 있다. 따라서, 본 연구결과를 토대로, 고등학생들의 스마트폰 과의존 정도를 감소시키고 우울 수준을 감소시키기 위한 방안 마련이 필요할 것이며, 스마트폰 과의존 정도와 우울 수준에 대한 인과관계와 영향력을 밝히는 후속 연구가 진행되어져야 할 것이다.

• 디지털산업정보학회논문지
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• 제8권1호
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• pp.9-15
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• 2012

Multiple convenience features have been getting installed in recently released cars. However, the control of them has many uncomfortable matters yet. To resolve them, it is needed to study how to use easier the convenience features and control them remotely. Currently, wide range of convergence services are being released in various industries by using smartphone and smartphones with its state-of-the-art functions also are being released. In this paper, we design and implement smartphone-based applications for controling the vehicle's convenience features to control the vehicle convenience features with smartphone. To do this, we configure CAN (Controller Area Network) communication between the vehicle's various convenience features, and establish MCU (Micro Controller Unit) to control each feature. We also connect between the MCU and smartphones to make them available for the remote control. We can control lights, turn signals, audio, windows, air conditioner, and so on with the implemented smartphone-based control service of vehicle's convenience features using CAN remotely.

• 디지털산업정보학회논문지
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• 제7권1호
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• pp.143-156
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• 2011

Mobile & Telecommunication industry have been improved in recent years, many different and different shape devices have been introduced and relative services also consistently have been developed as well. Mobile users also demand new service and diverse contents different from vice oriented services and its quality improvement. Recently Smartphone has shown up and changed Mobile & Telecommunication industry and lead activating the industry. Particularly Smartphone users enjoy many different functions and service provided by Application Market. Actually this Application Market would lead improving Mobile& Telecommunication industry. This fact is worthy of notice. Therefore This study focus on Application Market and analyse what determinants affect user's intention to use Application Market. Mainly e-Servqual and TAM model are applied and research model was established and empirically tested. As a result information, transaction and design quality significantly effect on user's intention and perceived usefulness and easy of use also significantly more effect on user's intention. There will be several implications to establish strategy for application market based on this results.

• 한국게임학회 논문지
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• 제17권2호
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• pp.75-84
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• 2017

한국 스마트폰 게임의 빠른 성장과 함께 새로운 수익화 모델에 대한 검토가 요구된다. 특히 스마트폰으로 공급되는 다양한 콘텐츠들이 사업화 관점에서 적절한 수익모델을 찾지 못한 것에 비해, 스마트폰 게임은 기존 아케이드 게임 산업과 콘솔 PC 기반 패키지 게임 산업의 시장 경험을 적극 수용하여, 유료 다운로드 모델, 부분 유료화 모델, 게임 내 광고 모델 등 과금을 유도하는 다양한 수익화 모델을 개발하고 적용했으며, 이를 통해 단시간에 두터운 과금 사용자 그룹을 형성하였다. 이러한 수익화 모델의 개발과 적용은 스마트폰 게임 시장의 고속 성장과 발전에 중요한 기폭제가 된다. 이에 한국 스마트폰 게임에서 부분 유료화 모델의 문화적 특징과 게임 산업 전체의 수익화 모델 변화 과정을 살펴보고자 한다. 이를 위해 부분 유료화 모델을 도입 발전시킨 일본과 세계 시장을 주도하는 중국의 부분 유료화 모델을 비교하고자 한다.

• 한국산업융합학회 논문집
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• 제25권5호
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• pp.773-782
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• 2022

Estimation of cable tension through proper measurements is one of the essential tasks in evaluating the safety of cable structures. In this paper, a study on cable tension estimation using the built-in accelerometer and camera in a smartphone was conducted. For the experimental study, visual displacement measurement using a smartphone camera and acceleration measurement using a built-in accelerometer were performed in the cable-stayed bridge model. The estimated natural frequencies and transformed tensions from these measurements were compared with the theoretical values and results from the normal visual displacement method. Through comparison, it can be seen that the error between the method using the smartphone and the normal visual displacement is sufficiently small to be acceptable. It has also been shown that those errors are much smaller than the difference between the values calculated by the theoretical model. These results show that the deviation according to the type of measurement method is not large and it is rather important to use an appropriate mathematical model. In conclusion, in the case of cable tension estimation, it can be said that the visual displacement measurement and acceleration using a smartphone can be a sufficiently applicable method, just like the normal visual displacement method. It is also noteworthy that the smartphone accelerometer has a larger magnitude error and has more limitations such as high-frequency sampling instability compared to the visual displacement method, but shows almost the same performance as the visual displacement method in this cable tension estimation.

• 한국멀티미디어학회논문지
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• 제23권1호
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• pp.93-101
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• 2020

Korea, as a leader of Internet and game sector in IT industry, has been playing an important role in increasing its industrial development. This country has won the first place in wireless broadband usage and contributed to Internet game industry development. This means that Korean use smartphones most. It is juveniles that use Internet and smartphones most among Korean who use teenage., the number of the teenagers who overuse smartphones or Internet has surpassed 200,000. The number of the adolescents who spend more time using smartphone and Internet is about 180,000 and the number of the teens who are over-dependent to smartphone having trouble living their lives is over 22,000. The SNS usage rate of the contents that teens are most likely to use has accounted for over 80 percent. Among teens, SNS is being considered as a major means that builds relationship due to smartphone technology and the prevalence of smartphones. However, the use of SNS among youths has two sides; one is positive, the other negative. Not only does SNS have a positive function that it keeps relationship but it also has a negative function that it can lead to smartphone addiction.

• 경영과정보연구
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• 제32권3호
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• pp.61-81
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• 2013

스마트폰은 사용자 수의 급증으로 학계와 업계에서 주목을 받고 있다. 본 연구에서는 실증분석을 통해 사용자들이 가장 중요하다고 생각하는 기능적 속성이 무엇이고, 각 기능적 속성의 상대적 중요도가 어떠한지를 명확하게 찾아내고자 한다. 이를 통해 실무적인 측면에서 스마트폰 제조업체의 제품 개발에 유용한 정보를 제공하고자 한다. 스마트폰의 기능적 속성의 상대적 중요도를 구하기 위해 본 연구에서는 AHP 기법을 활용하였다. 먼저 문헌연구를 통해 추출된 스마트폰의 기능적 속성요인을 기반으로 계층구조를 설정하고, 계층구조에 의해 설문문항을 개발하여 설문조사를 실시하였다. 다음으로 Expert Choice 프로그램을 이용하여 스마트폰 각 기능적 속성의 중요도를 구하였다. 추가적으로 소비자들이 현재 사용하고 있는 스마트폰의 기능적 속성에 대한 만족도를 분석하였다. 마지막으로 연구결과를 바탕으로 실무적 시사점 및 연구의 한계점을 제시하였다.

• 동아시아경상학회지
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• 제6권3호
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• pp.16-23
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• 2018

Purpose - 2013 to 2014 was a transitional situation in which China's Smartphone industry was fluctuating. So in this paper, we will look at the strategies and achievements of Xiaomi, a company that has emerged in this situation and topped the market share. In particular, the purpose of this paper is to analyze why Xiaomi, which is considered a copycat, was able to succeed in the smartphone market four years after entering the market and analyze its strategy. Research design and methodology - Various secondary data are to be used for this study. Using various newspaper articles as well as corporate reports, the company analyzes the transitional situation from 2013 to 2014 and the competitors together. Through these analyses, Xiaomi's strengths are selected objectively and analyzed to identify the factors that made Xiaomi successful. Results - After China's transitional shift in 2014, Xiaomi brought about a 152.3 percent share change over the previous year. In addition, it surpassed Samsung Electronics, which has been the industry's No. 1 player, in 2014, and achieved the No. 1 ranking with a 16 percent share. Xiaomi Mi4's phone had a strong point of maintaining low price while being loaded with high performance. Conclusions - Xiaomi's success is because its price and performance was excellent. Xiaomi's Mi4's specifications were not far behind its competitors', but it was very cheap compared to its competitors' prices. They also valued software and used talent-oriented human resource strategies. Plus, it created the 'Mifan' culture successfully and benchmarked the strengths of its competitors smartly.

• 디지털산업정보학회논문지
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• 제11권3호
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• pp.53-62
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• 2015

Recently, number of tablet or Smartphone users increased significantly in domestic and around the world. But violation of personal information such as leakage, misuse and abuse are constantly occurring by using mobile devices which is very useful in our society. Therefore, in this paper it will talk about the problems in the network environment of the mobile environment such as tablet and Smartphone, Mobile Malware, hacking of the public key certificate, which could be potential threat to mobile environment. This thesis will research for people to use their mobile devices more reliable and safer in mobile environment from invasion and leakage of personal information. In order to use Smartphone safely, users have to use Wi-Fi and Bluetooth carefully in the public area. This paper will research how to use App safely and characteristic of risk of worm and Malware spreading. Because of security vulnerabilities of the public key certificate, it will suggest new type of security certification. In order to prevent from the information leakage and infect from Malware in mobile environment without knowing, this thesis will analyze the improved way to manage and use the mobile device.

• 디지털산업정보학회논문지
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• 제10권4호
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• pp.211-224
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• 2014

This study is aimed at considering the relationship between the influential factor in Smartphone purchase and consumer awareness. For this purpose, this study set up the influential factors in Smartphone purchase as advertising effect, brand effect and usability effect and corporate image effect, and considered the relationship between these influential factors and consumer awareness empirically. The research results can be summarized as following 3 parts: First, the four factors suggested as the influential factor in Smartphone purchase were verified to have a significant influence on customer satisfaction and customer loyalty, and thus, it is thought that the bigger the influence of these factors, the more customer satisfaction and customer loyalty will increase. Second, among the factors suggested as influential factors in Smartphone purchase, the biggest factor in influencing customer satisfaction was found to be 'Usability Effect' while the biggest factor in influencing customer loyalty was revealed to be 'Brand Effect.' As a result, this study could learn that it's necessary that 'Usability Effect' should be considered more preferentially than other factors in order to enhance customer satisfaction while 'Brand Effect' should be preferentially considered in orderto raise customer loyalty. Third, it can be judged that in the relationship between customer satisfaction and customer loyalty, the bigger the customer satisfaction, the higher the customer loyalty. It is hoped that such research results could be applied as useful materials in time of establishing the marketing strategy. Nevertheless, this paper makes it clear that due to the constraints in the number of sample areas and samples, there is a limit in objectifying the research results into all areas.