• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.9 no.4
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• pp.147-152
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• 2010

Gas sensor array can be widely applied to atmosphere environment, quality control of food, and medical fields etc. So for the commercialization and popularization of sensor technology, this paper looked into the method to provide users with general purpose smart phone and gas sensor array linked together. The reviewed system can detect unknown gas in the air and inform users using smart phone by arraying 8 kinds of common use gas sensor. This system is composed of the sensor module, communication module between sensor array and smart phone application software. In this paper, this prototype system demonstrate convincingly that the application of Gas sensor array to smart phone is a good outlook.

• The Journal of the Korea Contents Association
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• v.10 no.9
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• pp.318-326
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• 2010

In this paper we investigate the factors influencing the purchase intention of Smart-Phone which was introduced recently. Smart-Phone is a new information technology that converges PDA into a mobile phone. It has a various functions such as phone, information processing, Internet search etc. New information technology like Smart-Phone gives us a very important and interesting research issue, which is to find and prove the factors influencing the purchase intention. We try to find and prove the factors influencing the purchase intention of Smart-Phone by expanding Technology Acceptance Model. We include the perceived playfulness to the research model in order to analyze the factors. This empirical paper proves that the perceived usefulness, the perceived ease-of-use, and the perceived playfulness give positive effects to the purchase intention. In addition, this paper indicates some managerial implications that various and useful applications and the easy user interface can help to increase the degree of user acceptance.

• Journal of Information Technology Applications and Management
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• v.23 no.3
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• pp.49-59
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• 2016

Rapid technological advancements and widespread adoption of smart phones in recent years provide students with new opportunities for getting knowledge and making researches in innovation century. As the penetration of smart phone devices in education increases, there is a large growth in the use of these devices especially among the youth. In spite of increasing importance of smart devices in education, the significant features of these technology devices for general learning have not been experientially addressed. In this study we are going to investigate the comparison of smart phone devices and find the necessary conditions for using mobile devices as an educational tool by a conjoint method. There will be five attributes: screen size, batter type, mobile OS, memory capacity and price. By surveying we got the results which showed us the respondents' desire of using specific smart phone; thus, we defined that screen size attribute is the most important device characteristic.

• Journal of Digital Convergence
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• v.10 no.9
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• pp.175-184
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• 2012

The aim of this study is to inquire into the influential relationship between perceived characteristics and psychological attitude toward smart phone in relation with the smart phone. This study conducted a questionnaire survey targeting domestic college students who are using the smart phone in an effort for an empirical test of the research model. The theoretical implications of this study laid foundation for doing research on the behavior of perceived characteristics and psychological attitude toward technology, and supplied a clue to diverse, in-depth research works on the further smart phone. The study-suggested practical implications are as follows: First, it is required that the usefulness and easy of use of the smart phone should be reinforced in order to form a positive attitude toward the smart phone. Second, the sense of dependence on the smart phone has an influence on user satisfaction.

• Journal of Korea Multimedia Society
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• v.18 no.8
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• pp.960-967
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• 2015

In this paper, we propose a user interface technique based on embedded sensors applying to apps in smart phone. Especially, we implement avata generation application using image filtering technique for photo image in smart phone. In the application, The embedded sensors are used as intuitive user interface to adjust the image filtering effect for making user satisfied effect in real time after the system produced the image filtering effect for avatar. This technique provides not a simple typed method of parameter values adjustment but a new intuitively emotional adjustment method in image filtering applications. The proposed technique can use sound values from embedded mike sensor for adjusting key values of sketch filter effect if the smart phone user produces sound. Similiarly the proposed technique can use coordinate values from embedded acceleration sensor for adjusting masking values of oil painting filter effect and use brightness values from embedded light sensor for adjusting masking values of sharp filter effect. Finally, we implement image filtering application and evaluate efficiency and effectiveness for the proposed technique.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39C no.11
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• pp.994-999
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• 2014

Nowadays we use biometrics such as face, fingerprint or palm print for registration and authentication with smart phone. When use camera function of smart phone, normally they overlay a specific image on camera preview as guideline and induce user to take picture uniformly. In this paper, use palm print for authentication factor with smart phone, we propose a new guideline and show the result about user experiment in terms of authentication success ratio.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.10 no.4
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• pp.267-272
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• 2016

In the era of ultra high speed information communication technology represented by Smart phone and Tablet PC, the disable and the aged people came to be in a position of so-called 'relatively weak people' in the field of information communication due to inconvenience of use and difference in information acquisition and processing ability. Thus, a survey was conducted on Smart phone accessibility items based on previous studies of the disabled with crippled disorder, brain lesions, myelopathy and muscular disabilities having more inconvenience relatively in their use of smart phone due to upper limb dysfunctions. Especially, people with upper limb dysfunctions with relatively weak grip had big inconvenience in the conditions of uses requiring actions such as grabbing and rotating the devices, and due to the characteristics of touch screen input method of Smart phone, they had big inconvenience due to a lack of a guidance for keyboard in input. As a result of questionnaires by the type of disability, it turned out that severe myelopathy causes the most inconvenience in using smart phone.

• Journal of Korea Society of Digital Industry and Information Management
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• v.9 no.1
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• pp.25-31
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• 2013

Medication adherence is a basic and important element in diabetes management, and it has been known the adherence rate should be keep over 80% to get positive result in diabetes management. In order to increase medication adherence, there have been smart phone apps that record medication, exercise, and diet. However, diabetes patients are generally over 50s, and most of them do not use smart phones. Therefore, in this paper, we propose a medication adherence help system that support both smart phone apps and feature phone SMS. Furthermore, we introduce system architecture for the system. Our work will help ICT-based diabetic management system developers to consider some issues for mobile based diabetic management systems..

• Journal of the Korea Convergence Society
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• v.13 no.2
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• pp.215-222
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• 2022

The purpose of this study was to analyze effects of blended learning on abilities to use smart-phone and applications among students with intellectual disabilities. To do this, 30 students with intellectual disabilities who were enrolled in special school and special classroom in Jellanam-do and Gwanju metropolitan city were selected for this study, and were placed experimental and control groups of 15 students. The experimental group was provided with blended learning in which direct instruction, anchored instruction, experience activities, and community-based instruction were combined, and the control group was provided with traditional teacher-centered lecture style intervention. Pre-, post-, and maintenance evaluations were conducted two weeks after intervention. The collected data was analyzed the repeated two-way ANOVA. In the result of study, the experimental group improved on abilities to use smart-phone and applications than control group. Blended learning is a teaching method that can be a usefully used when educating how to use smart-phone and applications to students with intellectual disabilities.

• The Journal of the Korea Contents Association
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• v.13 no.2
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• pp.451-459
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• 2013

The purpose of this paper is to investigate the role of the internet based deviant behavior of smart phone during work hours on performance and the antecedents to deviant behavior mechanism. To do this, this paper proposes a theoretical model consisting of factors such as internet-based deviant behavior, work performance and intention, habit as it's influencing factors. It was analyzed via a survey of employees using smart phone at workplace. The results of this empirical study is summarized as followings. First, internet-based deviant behavior using smart phone has a negative effect on work performance. Second, intention and habit toward internet-based deviant behavior using smart phone are identified as the determinants of it's behavior. The findings have significant implications for the framework of internet-based deviant behavior using smart phone in the workplace.