최근 증가되고 있는 모바일 SNS(Social Network Service)를 통한 매개(Mediated) 커뮤니케이션에서 자신의 감성을 표현 가능한 이모티콘을 활용하여 대화하는 감성 커뮤니케이션이 발달하고 있다. 이모티콘 개발이 증가 하고 사용이 대중화가 됨에 따라, 사용자가 원하는 감성 표현이나 의미를 상징하는 아이템에 대한 요구가 확대 되고 있다. 또한, 동일한 이모티콘이라도 사용자에 따라 다르게 해석할 수 있으며, 디자이너의 의도한 감성 표현에 대해 사용자의 의미 해석이 상이할 수 있다. 따라서 본 연구에서는 모바일 SNS 메신저에서 이모티콘을 이용한 커뮤니케이션을 위해 사용되는 감성 어휘를 연구하고 분류하여 감성 커뮤니케이션과 관련된 이모티콘 개발의 초석을 마련하고자 한다. 즉, 사용자 관점에서 이모티콘에 기반하여 표현하고자 하는 감성 어휘에 대한 분류와 모델을 제안한다. 본 연구를 위해 첫째, 문헌조사를 기반으로 감성 형용사를 수집하고 설문, 통계 분석 및 FGI (Focus Group Interview)를 통해 1차 감성 어휘를 추출한다. 둘째, 2차 설문조사 및 통계분석을 통해 최종 적합 어휘를 추출한다. 셋째, 최종 추출된 어휘를 바탕으로 다차원척도 분석을 실행하여 어휘 모델을 도출하고 감성 어휘를 분류한다. 그 결과 ‘미안하다’, ‘바쁘다’, ‘배고프다’, ‘어렵다’, ‘슬프다’, ‘날씨가 춥거나 덥다’, ‘지 루하다’, ‘부끄럽다’, ‘궁금하다’, ‘만족하다’, ‘좋다’, ‘아름답다’, ‘편안하다’ 의 13개 어휘로 분류되었다.

This study investigated how pre-service English teachers develop and use MICT (mobile information and communication technology)-TPACK (technological pedagogy and content knowledge) to select and use mobile applications for their micro teaching in a pre-service teacher training program. Although mobile technology has rapidly developed with the adoption of mobile multimedia devices and applications, the use of pre-service teachers’ TPACK is still limited to lower-level searches and to a mere tool for content presentations. The participants were nine students in a pre-service teacher training course in a four-year women’s university. Several research methods such as surveys, participant observations, micro teaching and interviews were utilized. The results of the study show the concept of TPACK needs to be extended to MICT-TPACK in this mobile age. The use of pre-service English teachers’ MICT-TPACK impacted and changed their concept of pedagogy to heutagogy. The teachers used mobile applications to facilitate their students’ inquiry-based learning of English as a subject as well as a medium of digital literacy. In order to select mobile applications for their lesson, the teachers developed a modified version of quality criteria for mobile applications. This study suggests there should be well-developed quality criteria for evaluating affordances of mobile applications.

It is necessary to develop a mobile water production system in order to provide stable water supply in case of disasters such as floods or earthquakes. In this study, we developed a modular mobile water production system capable of producing water for various uses such as domestic water and drinking water while improving applicability in various raw water sources. The water production system consists of three stages of filtration (sand filtration - activated carbon filtration - pressure filtration) to produce domestic water and an additional reverse osmosis process to produce drinking water. In laboratory and field experiments, the domestic water production system showed excellent treatment efficiency for particulate matter, but showed limitations in the treatment of dissolved substances such as dissolved organic matter. In addition, ultraviolet irradiation was considered as additional disinfection step, because it does not form precipitates of manganese oxides after disinfection. Reverse osmosis process was added to increase the removal efficiency of dissolved substances and the treated water satisfied drinking water quality standards. Fluorescence analysis of dissolved organic matter showed that the fulvic acid-like substances in raw water was successfully removed in the reverse osmosis process. The mobile water production system developed in this study is expected to be used not only in water supply in case of disaster, but also widely used in islands and rural area.

According to a survey conducted in the United States of America, 43% of mobile-device-use by children aged between zero and eight years old falls into the sector of educational games. However, that percentage rises to 39% and 51% among children aged 2-4 and 5-8 years, respectively. The question, therefore, is: how can numerous mobile educational games attract the attention of children? Children are attracted to educational games because of various factors including vivid characters and enticing colors, among other elements. This research paper focuses on analyzing the character examples in eight children’s mobile educational games with differently gendered characters. The top elements considered in the eight games include the top-selling games, color distribution, and the hue frequency of every character to obtain the results. The research paper also discusses the characteristics of children’s mobile educational games for different gender characters and the methods of possibilities and considerations for effective design.

디스플레이 기술이 다양한 상품으로 점차 발전함에 따라 소비자가 선호하는 디스플레이 유형을 선택할 수 있는 효과적이고 객관적인 비교 평가 방법이 필요하다. 그러나 객관적이고 주관적인 디스플레이 품질 평가 방법은 디스플레이가 상이한 특성을 가지므로 다양한 디스플레이에서 일반적으로 유사하지 않다. 이에, 본 논문은 상대적으로 특성이 서로 다른 디스플레이의 인지 화질 평가를 위해 분석 네트워크 프로세스 (ANP)를 사용하여 이들 디스플레이의 상대적 화질 을 평가할 수 있는 체계적인 시스템을 제안한다. 제안된 평가 방법의 검증은 4 개의 모바일 디스플레이를 사용하여 평가 되었고, 주관적 평가와 제안한 방법의 선호도가 일치함을 보였다.

This study aims to configure what dimensions make up for smart phone after service quality, and how this service quality affects customer satisfaction and customer loyalty. Smart phone market is a market of the device leading the digital convergence as well as positioning itself as one of the national growth driving industry. To survive in this matured market, companies should have to respond actively to radical changes and customers needs in the so-called Smart Revolution environment. Lately, however, the smart phone market is prospected to move from growth phase to mature phase by the scholars. In order to proactively respond to the change in such market condition, companies need to provide absolute advantage in customer loyalty over their competitors by revolutionizing the after-sales service quality. Qualified A/S will lead to service satisfaction and achieve customer loyalty. The empirical analysis results obtained through A/S quality are as follows : First, human quality (attitude, expertise, problem-solvability), environment quality (handling agility, convenience, comfort), service policy quality (quality guarantee, additional service operation) are dimensions that make up for A/S quality. Second, A/S quality dimension showed a significant positive influence on service satisfaction and A/S satisfaction showed a positive influence on customer loyalty as well. Based on this empirical study, we propose some implications for A/S quality improvement. First, human quality dimension has relatively higher influence on A/S satisfaction in case of free A/S, so companies need to solve the product problem completely when consumer’s first visit by continual employee education. Second, in case of paid A/S, the service policy quality-especially A/S Warranty period- has higher influence on A/S satisfaction.

본 연구에서는 모바일 환경에서의 스마트 디바이스를 통한 콘텐츠 및 저작물 등을 감상하는 시대가 되었지만, 저작권 보호와 이에 따른 기술적 조치는 상대적으로 미흡한 현 시장 환경에서 국내 스마트 디바이스 산업 현황에 대한 정량적 연구를 기반으로 하여 IoT 디바이스 시장에서 저작권 기술에 대한 프레임워크를 제시하고자 하며, 최적의 자원효율적인 저 작권 기술 프로세스에 대한 제안과 더불어 핵심 기술로의 활용 전망과 저작권 기술의 구동에 대한 기대성과를 제시하고자 한다.

공정거래위원회는 2015년 기업메시징서비스 시장에서의 시장지배적 지위 남용에 관한 의결에서 관련 상품(서비스)시장의 범위를 ‘무선통신망을 통한 기업메시징서비스시장’으로 확정하였으나 이러한 판단은 더 이상 유효하지 않다. 스마트폰과 더불어 등장한, 한국 모바일메신저 앱 시장 의 94%를 점유하는 카카오톡이 기업메시징서비스 시장에서 변화를 일으키고 있기 때문이다. 카카오톡은 하이브리드 전송 서비스를 통해 무선통 신망을 보유하지 않고도 이를 보유한 이동통신사 업자들과 경쟁하고 있고 알림톡 서비스는 문자메 시지를 통한 기업메시징서비스보다 저렴하면서 정보 전달 기능 및 효용이 유사하여 이를 이용하는 업체의 수가 빠르게 증가하고 있다. 카카오톡은 이동통신사업자들의 무선통신망이라는 거대한 진입장벽을 이미 뛰어넘었으므로 당장 법원에 소송 계속 중인 사건에서 시정이 이루어지기는 어렵겠지만 향후 이러한 기술발전을 고려하여 기업메시징서비스 시장의 관련 상품시장 범위를 획정하는 법 집행 당국의 판단이 있어야 할 것이다. 기술의 발전이 법에 끼치는 영향에 적극적인 관심을 가짐으로써 새로운 법적 쟁점에 대응하는 자세가 중요한 이유이다.

Through the development of the media, boundaries between different media have become more fluid than before. Among such media, webtoon got credited from other global societies by it’s own literary value to be made as not only as drama or movie, but as the mobile game also. This research aimed to study cases of mobile game which utilized webtoon as the source to find out how the original webtoon influenced the awareness of game. Secondly, this study focused on find out the webtoon’s narrative adapted range under the type of the mobile game. Last of all, this study aimed to discuss about the development direction under specific RPG mobile game "With God" which based it’s contents under the webtoon.

본 연구는 비서직 여성노동자를 대상으로 직무요구와 퇴근 후 모바일 업무활용이 일-가정 갈등 및 생활만족에 미치는 영향을 검증하였다. 또한 직무요구와 결과변인의 관계에서 퇴근 후 모바일 업무활용에 대한 조절효과를 종합적으로 실증분석하였다. 현직 비서업무를 담당하고 있는 비서직 여성노동자 131명을 대상으로 한 연구결과는 다음과 같다. 첫째, 비서직 여성노동자가 지각하는 높은 직무요구는 일-가정 갈등에 정(+)의 영향을 보였고, 생활만족에 유의미한 부(-)의 영향을 주었다. 둘째, 퇴근 후 모바일 업무활용은 일-가정 갈등에 정(+)의 영향을 주었으나, 생활만족에는 유의미한 영향을 주지 않았다. 마지막으로 직무요구와 일-가정 갈등의 관계에서 퇴근 후 모바일 업무활용의 상호작용 효과가 확인되었다. 즉, 직무요구와 일-가정 갈등의 부정적 효과는 퇴근 후 모바일 업무활용이 높은 집단이 그렇지 않은 집단에 비해 높았다. 그러나 직무요구와 생활만족의 관계에서 퇴근 후 모바일 업무활용의 조절효과는 검증되지 않았다. 본 연구결과를 바탕으로 시사점과 연구의 한계점 및 향후 연구방향이 논의되었다.

Mobile games’ proportion in domestic game industry has been rising steadily every year and in next couple of years, it is likely to surpass online games. Considering that mobile games’ lifespan is very short compared to online games, recognizing the user’s needs at the beginning is important. However, there is a lack of research in such game field. This research is about mobile games’ initial experience importance in temporal viewpoint. Furthermore, it has verified whether this depends on user’s characteristic. I have conducted observation experiment on users of ‘Lineage M’, mobile MMORPG game, for one week starting from the game launch and deducted the importance of initial experience using AHP analysis. Moreover, by analyzing the differences in users’ proficiency, the research provides understanding of diverse users. In conclusion, this research provides basic data for improving satisfaction of initial game users and extending them to long-term game use.

The predictive control system using model-based predictive control is a very effective way to optimize the present inputs considering the states and future errors of the reference trajectory, but it has a drawback in that a control input matrix must be repeatedly calculated with a long calculation time at every sampling for minimizing future errors in a predictive interval. In this study, we applied the neural network simulating the predictive control method for the trajectory tracking control of the mobile robot to reduce complex control method and computation time which are the disadvantage of predictive control. In addition, the neural network showed excellent performance by the generalization even for a different reference trajectory. Therefore, The controller is designed by modeling the model-based predictive control gains for the reference trajectory using a neural networks. Through the computer simulation, the proposed control method showed better performance than the general predictive control method.

Mobile shoppers have encountered frequent color mismatch in the products that they have purchased, as they can only rely on their sense of sight. Therefore, fabric color and color difference recognized by smartphone display during mobile shopping were studied using instrument analysis method. It aimed to gather precise information on actual fabric color understanding of the mobile shoppers purchasing textile products. Three smartphones were selected from LG, Samsung, and Apple companies, and four colors were researched (red, yellow, green and blue) to both polyester and wool test fabrics for color analysis though color measuring instruments. The results from the spectrophotometer indicated that the color coordinate location of smartphone fabric color is similarly distributed regardless of the type of fabric. The Samsung smartphone displays a relatively high color chroma (especially on red-colored fabric) regardless of the type of fabric due to a high color reproduction range. In contrast, the LG smartphone, which has high color temperature, displays high color chroma on the blue colored fabric with a significant color mismatch between the actual fabric color and smartphone fabric color. From the results of this study, issues related to mobile shopping can be addressed through an analysis of the products sold, the smartphone’s color representation, and user understanding.

Mobile shoppers have encountered frequent color mismatch in the products that they have purchased, as they can only rely on their sense of sight. Therefore, fabric color and color difference recognized by smartphone display during mobile shopping were studied using instrument analysis method. It aimed to gather precise information on actual fabric color understanding of the mobile shoppers purchasing textile products. Three smartphones were selected from LG, Samsung, and Apple companies, and four colors were researched (red, yellow, green and blue) to both polyester and wool test fabrics for color analysis though color measuring instruments. The results from the spectrophotometer indicated that the color coordinate location of smartphone fabric color is similarly distributed regardless of the type of fabric. The Samsung smartphone displays a relatively high color chroma (especially on red-colored fabric) regardless of the type of fabric due to a high color reproduction range. In contrast, the LG smartphone, which has high color temperature, displays high color chroma on the blue colored fabric with a significant color mismatch between the actual fabric color and smartphone fabric color. From the results of this study, issues related to mobile shopping can be addressed through an analysis of the products sold, the smartphone’s color representation, and user understanding.

The key motivation of this study is for a style of the sensor arrangement to have an effect on the localization performance of mobile robots in case of using sonar sensors. In general robot platforms with sonar sensors, sonar sensors are supposed to be radially arranged on their rotational axis of mobile robots. However, relevant limits to several functions required for their autonomous navigation occur unexpectedly, because a sonar sensor generally has the negative nature of its wide beam width together with the specular reflection. We present a new strategy of the sonar sensor arrangement capable of enhancing the localization performance. Sonar sensors are intended to be arranged nonradially (twistedly expressed in this paper) on their rotational axis. The localization scheme called STARER: Sonar-Twisted ARrangement localizER is based on the extended Kalman filter (EKF) with occupancy grid maps. Experimental results demonstrate the validity and robustness of the proposed method for the localization of mobile robots.

This study aims to examine how the mobile social network service experience affects value co-creation and customer lifetime value. The mobile social network service experience includes mobile convenience, social compatibility, social risk, and cognitive effort. The research hypotheses with structural equation modeling are tested. In mobile SNS context, value co-creation behaviors essentially determine customer lifetime value of mobile shopping apps. Value co-creation behaviors have received little attention in mobile shopping. The mobile SNS experience strongly influences value co-creation behaviors. This study is based on a sample of mobile SNS users nationwide in Korea. Therefore, the generalizability of the findings has to be tested. Furthermore, the study examines customer lifetime value, which is good sales predictor of mobile shopping apps. Moreover, the research model included the positive and negative determinants on mobile SNS experience. Future researches examine other use intentions of mobile SNS. Value co-creation behaviors substantially affect customer lifetime value. Mobile shopping apps should increase customer lifetime value from mobile SNS experience and value co-creation. This study shows how individual mobile SNS user provides mobile shopping apps with profit through value co-creation. This study is the first to examine how mobile SNS users enhance value co-creation and how value cocreation behaviors affect customer lifetime value of mobile SNS users.

본 연구는 오존수를 이용한 인체공학적 샴푸대가 분리 가능하고 미세분사 형식의 샤워헤드 와 높낮이 조절이 가능한 샴푸대를 개발할 수 있는 장치기술 및 그 방법을 제시하고자 한다. 개발결과 기존의 장치보다 피시술자 머리가 세발대 안으로 들어오는 인체공학적 디자인과 목받이 부분을 높게 제작하여 물튀김 방지를 완성하였다. 실험결과 물을 공급하는 통에 부착되어 있는 온수 유지 히터를 통 해 피시술자의 기호에 맞는 온도를 설정하여 시술 시 지연 시간 없이 온수 세발 가능하도록 온도센서를 통하여 확인한 결과 수온유지(38℃)가 일정하게 유지되었다. 그리고 오존수 변환장치 설치로 자체 살균 (1PPM) 및 정화 기능까지 가능한 장치의 효용성을 알 수 있었다. 오존수를 20분 정도 측정한 결과 오 존 농도가 1PPM 이하로 측정되어 안정성을 확보하였다. 최종적으로 오존수를 20분 정도 측정한 결과 오존 농도가 1PPM 이하로 측정되어 안정성을 확보하였고, 온수장치와 오존수 변환장치와 함께 이동 샴 푸대의 모든 부분이 사용자가 사용하기에 불편함이 없도록 설계 하였다.