• Korean Journal of Social Welfare
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• v.61 no.2
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• pp.371-389
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• 2009

This study estimates the socioeconomic costs of missing children in Korea. The costs were classified as direct costs and indirect costs. The direct costs consisted of direct costs for searching for missing child such as making posters, transportation, and medical costs. The indirect costs were computed by the opportunity costs caused by child missing. The total costs that could be attributable to missing child were estimated to be about 570 million won per long-term missing child. This provides strong evidence that prevention of child missing is the most important and quick recovery after child is missing is the second most important. Missing child incurs substantial socioeconomic costs to the Korean society. Therefore, this study provides strong need for more interest from people who are indifferent to missing child issues and strong support for more government interventions to solve missing child problem in Korea. Further studies are needed to calculate socioeconomic costs of child missing more exactly.

• Journal of Service Research and Studies
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• v.4 no.1
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• pp.61-70
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• 2014

We are being developed many applicaton of wireless mobile computing system environment with development of wireless internet technology and teminal eqipment. Lately, Modern Society increase terror of infant children and weak peoples. This study suggested missing child prevention and protection of infant children. When happened an emergency of missing child has risen, we suggest missing child prevention system. This system find position of missing child in fast time. We analysis and design and constructed missing child prevention system by bluetooth and GPS of wireless mobile environment.

• Journal of KIISE:Information Networking
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• v.35 no.5
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• pp.453-463
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• 2008

The missing child problem is no more a personal problem. It became a social problem that all parents must consider. To this, this study applies USN/RFID technology integrated with GIS for the prevention of missing child. Although RFID is not designed for location sensing, but now it is regarded as a device to facilitate real time location awareness. Such advantages of RFID can be integrated with 4S(GIS/GPS/LBS/GNSS) achieving much synergy effects. In order to prevent kidnapping and missing child, it is necessary to provide a missing child preventing system using a ubiquitous computing system. Therefore, the missing child preventing system has been developed using high-tech such as RFID, GPS network, CCTV, and mobile communication. The effectiveness of the missing child prevention system can be improved through an accurate location tracking technology. This study propose and test a location sensing system using the active RFID tags. This study verifies technical applied service, and presents a system configuration model. Finally, this paper confirms missing child prevention system utilization possibility.

• Convergence Security Journal
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• v.13 no.5
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• pp.215-222
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• 2013

This study aims to provide future direction recognizing the educational importance and to present the way ahead that practices correctly for improving an educational role on security sector to prevent child missing. Therefore, it was conducted with questionnaire that is "Research on participation grade of education to prevent child missing and the actual condition" made by researcher of this study which is on 363of parents of pre-chirdren of 6,7 and 8years old in a kindergarten and an elementary school where is located in metropolitan area. It operated to take processing enterprise statistics using SPSS/WIN 12.0 for getting data, and analyzed frequency and t-verification.It investigated correct selection of an education specialist on preventive education and participation grade of education to prevent missing on home, how often, how it is conducted, then what requirement for educationto prevent child missing and participation grade is, whether difference is in accordance with gender of parentsand gender of child.

• Journal of the korean academy of Pediatric Dentistry
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• v.24 no.1
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• pp.186-194
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• 1997

The three child patients aged 3 to 5 years were worn by anterior space maintainer which are fixed type after missing of anterior teeth due to nursing caries, and were taken periodic follow check up. The results are : 1. At missing of anterior teeth, fixed space maintainer can be used. 2. Increased esthetic satisfaction and positive change of social behavior can be observed by these child patients. 3. Some phonations can be changed definitely after wearing the fixed space maintainer.

• Journal of Industrial Technology
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• v.29 no.B
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• pp.157-163
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• 2009

In this paper, we implement a place information system for missing children using embedded board. In the implementation, the embedded board receives location information from GPS satellites, parsing GGA information which includes current time and location coordinates from the satellite information and sends them to the location management server. The server locates a missing child using the location information from embedded board together with server database. We implement an application program for the system. The program shows current location of a child and its moving path and browses the corresponding map from coordinates mapping.

• The Journal of the Korea Contents Association
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• v.2 no.2
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• pp.64-72
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• 2002

In this paper, the aims are to develop convenient and safe system-solutions, looking for missing-child, which is one of the increasing social problems, on the basis of World Wide Web. Finger-print cognition has been researching from long time before, as well as Bio-cognition technology, which is adapted for private-cognition in the field of human-cognition. By the fingerprint cognition, which discern finger print, which is generally used in Bio-cognition and is characterized each by using image-processing, missing-child protection system on the basis of Word Wide Web is designed and implemented in this paper. Additionally, indicates plans for revitalization method of this system.

• Journal of the Korean Data and Information Science Society
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• v.25 no.6
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• pp.1439-1447
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• 2014

Most of literatures on Korean child aggression are based on using the cross-sectional data sets. Although there is a related study with a longitudinal data set, it is assumed that the data sets measured repeatedly in the longitudinal data are mutually independent. A longitudinal data analysis for Korean child aggression is then necessary. This study is to analyze the effect of child development outcomes including academic achievement, self-esteem, depression anxiety, delinquency, victimization by peers, abuse by parents and internet using time on child aggression with Korea Welfare Panel Study data observed three times between 2006 and 2012. Since Korea Welfare Panel Study data have missing values, the missing at random is assumed. The linear mixed effect model and the restricted maximum likelihood estimation are considered.

• Journal of Korea Game Society
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• v.17 no.6
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• pp.121-128
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• 2017

The problem of missing child is a social problem. It became a social problem that all parents must consider. These social and public sector issues need urgent improvement. There are many studies on the problem of preventing missing child worldwide as an area of increasing interest. However, in the past, mainly the method of monitoring the position information of the child depending on the equipment was mainly tried. In addition to this method, a method of learning local information is required. In this paper, we propose the game "Save the village," a flight shooting game based on the player's location information and local information. It is expected that it will be possible to learn local information naturally through this game. It is also expected that children will be able to cope with the situation without embarrassing or confusing even in a strange area.

• The Journal of the Korea Contents Association
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• v.12 no.12
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• pp.179-191
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• 2012

In 2003, the US Congress enacted the Code Adam Act of 2003. The Act was so-named in memory of six-year-old Adam Walsh, who was abducted from a Sears department store in Florida and was later found murdered in 1981. According to the Act, the designated authority for a public building must establish procedures for locating a child missing in a federal facility in the USA. In this context, the study basically aims to propose a legislative model for a missing children policy in Korean multi-use facilities, critically analyzing the US Code Adam Act. Unlike the Act, the proposed Korean bill requires all multi-use facilities beyond a certain size, including private buildings, to arrange a feasible missing child procedure on their own premises. The bill can impose an administrative fine on facilities which don't have the procedure in place, and further can make the list of the facilities known to the public. In order to encourage voluntary participation from the private sector, the bill finally suggests the Voluntary Certification Scheme through which participating business can take advantage of the certification logo commercially.