• Korean Journal of Veterinary Research
• /
• v.59 no.2
• /
• pp.97-100
• /
• 2019

It is important to select the correct disinfectants and to use them appropriately in order to prevent the initial spread of highly infectious livestock disease, such as foot-and-mouth disease or highly pathogenic avian influenza. This study describes a smartphone application developed to enable livestock workers to observe information related to disinfectants for the prevention of livestock disease in the domestic market, regardless of time and location, through a Linux-based Android mobile platform. This application (Konkuk-Disinfectant Information Database) provides information on disinfectant names, components, license and use; it was designed to enable the user to share disinfectant information through social media.

• Journal of KIISE
• /
• v.43 no.11
• /
• pp.1259-1269
• /
• 2016

In order to block the access of the information in the smartphone of a user by other users, it is checked if the current user is the owner or not in the smartphone authentication process, whenever a user begins to use a smartphone. This makes smartphone users in front of frequent smartphone authentications, which leads significant inconvenience to them. Because of such inconvenience, users tend not to use the smartphone authentication anymore. Finally, their smartphones become very vulnerable against malicious access. This paper proposes a progressive authentication method on the android-platform in order to solve the problem described above. With the proposed method, smartphones can identify relevant risks based on users' past experiences and determine whether an authentication is needed. Because authentication occurs only when the identified risk level is high, it can achieve both a high-level of security in the high-level risk situation and user convenience in the low-level risk situation.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.10 no.5
• /
• pp.117-125
• /
• 2015

This study was carried out to analyze how the smartphone addiction of adolescents affect their peer relations. To achieve the study purpose, a survey was performed on students attending middle school in Seoul. For the final questionnaire of 640, factor analysis, reliability test, t-test, one-way ANOVA, and hierarchial regression analysis were executed. Major study findings are as follows: First smartphone addiction did not affect the trust in peer relations, but affected communication, anger and isolation positively; Second, the degree of smartpone addiction was found to be different in gender, school year, average daily use time and average monthly phone bill; Third, a difference regarding peer relations was found in gender, school year, average daily use time and the monthly expenses. These study findings will contribute to creating a executable and socially acceptable program that promotes good functions of smartphone and discourage negative ones, thus helping alleviate the smartphone addiction problem of adolescents.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2017.05a
• /
• pp.447-449
• /
• 2017

The purpose of this study was to derive related marketing implications through survey of smartphone usage of wellness tourists. Recently, wellness tourism, which combines preventive services related to health and tourism activities, is rapidly expanding. In particular, analyzing behavior such as how smartphone usage is affected by wellness activities is significant. In order to achieve the purpose of this study, we analyzed the influence of smartphone information on wellness tourists through questionnaires for tourists. In this study, we surveyed 230 tourists in April, 2017, and analyzed the wellness activities and the effect of smartphone using questionnaires. Through this analysis, it is possible to provide practicable and meaningful implications to related tourism industry providers through linkage with related companies through behavioral analysis by smartphone use of wellness tourists.

• Journal of Convergence for Information Technology
• /
• v.9 no.9
• /
• pp.237-244
• /
• 2019

This study aimed to investigate the effects of motive of use, stress and interpersonal satisfaction on smartphone overdependence in dental hygiene undergraduates. A questionnaire survey was conducted on 216 dental hygiene students in colleges in Dajeon and Chungnam regions. The results showed that motive of use(3-4hours/>4hours)(${\beta}=-0.178$), weekday usage (<3hours/3-4hours)(${\beta}=0.163$), and weekday usage (${\beta}=0.196$) had a high impact on smartphone overdependence in dental hygiene students. Weekday usage dummy 1 was the factor with the greatest impact, with an explanatory power of 25.6%. Additional studies on various factors that affect smartphone overdependence as well as education programs for preventing smartphone overdependence in dental hygiene students are needed.

• Journal of Service Research and Studies
• /
• v.12 no.1
• /
• pp.36-48
• /
• 2022

As the use of smartphones has rapidly increased due to the development of digital technology, the expansion of smartphones, and the COVID-19 incident, dependence on smartphones and the Internet is emerging as a serious social problem. As one of the solutions to the smartphone overdependence problem, the government and companies are releasing smartphone overdependence prevention applications. However, research on the effectiveness of smartphone overdependence prevention applications is insufficient. Therefore, this study selects 25 applications serviced in Korea as analysis targets and evaluates smartphone overdependence prevention applications in terms of function and service using the FGI survey method to identify problems and propose improvements. In the function evaluation, the functions of blocking illegal/harmful apps/websites, limiting smartphone usage time, and monitoring smartphone usage status are provided in most applications, so satisfaction scores are also highly evaluated. However, functions such as location check, smombie prevention, and body camphishing prevention served by some applications are evaluated low due to poor performance and poor accuracy. Classified by service provider, government-providing applications need to accurately perform functions and improve convenience of use. Mobile-Carrier-providing applications need to improve connectivity with other carriers and compatibility with other smart devices like smartphone, tablet, etc. Other private enterprise-providing applications need to open AS channels such as customer service centre and chatbot to improve service.

• IEMEK Journal of Embedded Systems and Applications
• /
• v.9 no.6
• /
• pp.323-334
• /
• 2014

In this paper, we proposed indoor positioning system with improved accuracy. The proposed indoor location measurement system is based pedestrian location measurement method that use the embedded sensor of smartphone. So, we do not need wireless external resources, such as GPS or WiFi signals. The conventional methods measure indoor location by generating a movement route of pedestrian by step and direction recognition. In this paper, to correct the direction sensor error, we use the common feature of the normal indoor floor map that the indoor path is lattice-structured. And we quantize moving directions depending on the direction of indoor path. In addition, we propose moving direction measuring method using geomagnetic sensor and gyro sensor to improve the accuracy. Also, the proposed step detection method uses angle and accelerometer sensors. The proposed step detection method is not affected by the posture of the smartphone. Direction errors caused by direction sensor error is corrected due to proposed moving direction measuring method. The proposed location error correction method corrects location error caused by step detection error without the need for external wireless signal resources.

• Korean Journal of Health Education and Promotion
• /
• v.34 no.1
• /
• pp.13-24
• /
• 2017

Objectives: This study is to investigate the sexual behaviors among smartphone users of middle school male students. Methods: Data was collected on all students in one middle school of seoul city using a structured questionnaire that is consisted of the detailed fifty-one questions for the five variables, the general characteristics, the features of smartphone obscenity use, sexual knowledge, sexual attitudes and sexual behaviors from Sep. 24 to Oct. 25 in 2015. The responded 480 questionnaires were analyzed by using the SPSS(Statistical Package for the Social Science) WIN 21.0 Program. Results: The results from this study showed that the variables which affected sexual behaviors were school record(high), watching frequency(2-8 times/month, more than 9 times/month), watching reason(solving sexual desire), sexual attitudes, of which sexual attitude was a most influential variable. Therefore, to establish healthy sexual behaviors, it is required to raise correct sexual attitudes. and means that school sex education should make a way of establishing correct sexual attitudes. Conclusions: Professional and systematical sexual education is needed to increase responsible sexual attitude on sexual behaviors.

• The Journal of Information Systems
• /
• v.21 no.4
• /
• pp.55-79
• /
• 2012

LBS(Location-Based Service) is one of the smartphone application services which has been receiving great attention recently. Various applications of smartphone use LBS to provide innovative services. However, use of LBS raises privacy concerns because the location information of users is constantly exposed. Privacy calculus perspective attempts to understand the characteristics of the user's privacy. It is based on the risk-benefit analysis in the economics' perspective. That is, when the benefit expected through personal information disclosure is higher than risk, we are willing to provide personal information. This research suggested a research model based on the privacy calculus perspective to clarify the effect of information disclosure intention of smartphone LBS application users. Based on the main factors of privacy calculus, perception of privacy risk and privacy benefit, the relationship of the perceived value and the information disclosure intention was empirically analyzed by utilizing structural equation modeling(SEM) methodology. According to the results of the empirical analysis, it was found that all relations have statistically significant explanatory power except the relation between privacy concern and information disclosure intention. This study showed a strong evidence of antecedent factors based on privacy calculus of personal information disclosure in smartphone LBS applications.

• Journal of Digital Convergence
• /
• v.10 no.10
• /
• pp.247-259
• /
• 2012

The purpose of study is to advance current smartphone research past the limitation it faces being focused primarily on functional performance and to understand the causes of Smartphone diffusion. In order to do this, the dominant design concept was applied in examining the relationship between the determinants of the dominant design and the acceptance of smartphones. The research has yielded results which show that determinants such as technological superiority, number of installed based products, and availability of complementary goods have a positive effect on the intention to use smartphones and the attitude toward its use. Moreover, this study has contributed in broadening the understanding of dominant design by introducing the central concepts of dominant design which are not being dealt with in domestic studies and presenting the major variables which must be considered in the acceptance of smartphones.