• Korean Journal of Human Ecology
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• v.8 no.3
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• pp.465-476
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• 1999

The purpose of this study was to analyze on child counseling services of child welfare policy in Korea. Furthermore the results of analytic research were done to serve as the basic data for guidance and policy of Korean child welfare in future. The analytic data of this study were used from yearbook of health and welfare statistics(1998), ministry of health and welfare, republic of Korea. The main results obtained were as follows. 1. There were 47 guidance centers for children in Korea, and public guidance centers were 9, and private 38. 2. There were much more guidance centers in Holt Children's Services than in any other centers. 3. In terms of the occurrence of the cases, common children were about 40%, and juvenile delinquents, the scum of the street, and runaway children were from 17 to 20% of the total cases. In conclusion, government and nongovernment should provide various counseling services for the children. The data are discussed with respect to the implication of child welfare policy for attaining counseling services.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.1
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• pp.165-174
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• 2019

They are frequently used today in public places such as street, subway, school or library. Since users can sometimes print documents that contain confidential data using Printer Kiosks, the devices should store and manage the documents securely. In this paper, we identify potential security threats in Printer Kiosks and suggest practical attack scenarios that can take place. To show the feasibility of suggested attack, we analyzed network traffic that were generated by the real Printer Kiosk device. As a result of our analysis, we have found that attackers can access other users' scanned files and access other users' documents from Printer Kiosk's home page. We confirmed that using our attack, we could retrieve other users' personal data.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.17 no.4
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• pp.124-137
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• 2018

The main purpose of this study is to find the hotspots of crimes that occur frequently in the space and to derive the appropriate CCTV installation location. One of the characteristics of crime is clustered around past occurrence area, and these crimes are strongly correlated. It is also possible to find the cause of the clusters and the variables that affect the crime through the history of the crime. In addition to the traditional OLS model, spatial differential model including spatial autocorrelation and spatial error model were used to select the variables influencing the five major crime rate, the theft rate and the foreign resident rate. The variables affecting the Five major crimes were positive (+) sign for the welfare and the rate of the bar cluster rate, and negative (-) for the street density. The CCTV area occupies 46% of the hotspots based on the overlapping of the areas where the elderly people are crowded, the bar cluster, many multicultural families, and the areas with low density of street lamps. It turned out. Taking into account the current CCTV operation, the total number of new cases to cover the risk point was 89.

• Proceedings of the KSME Conference
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• 2001.06e
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• pp.607-612
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• 2001

Based on the flow characteristics around a piercing cylinder, a free surface-flow velocitmetry which can be used in extremely harsh environment such as molten steel flow was developed. The velocimetry is consisted of finite length cylinder, load detecting elastic plate, electric signal transducer and data acquisition H/W and S/W. Using such a velocimetry, two velocity measurement schemes were established which one is flow resistance detecting scheme and the other is Karman Vortex frequency detecting scheme. For calibration of each scheme, realistic flow water model was used and in followings, detailed calibration processes were explained.

• The Research Journal of the Costume Culture
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• v.6 no.4
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• pp.136-148
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• 1998

A apparel retail buyer played an important role in the market by providing apparel products for consumers and acting as an specialist who selected the vendor and decided the apparel product assortment. The purpose of this study was to investigate the relationships among the vendor selection criteria and information sources used by retailers and the satisfaction with store performance. A questionnaire was developed based on the previous studies and pretest. Data were collected from 237 retailers for women's apparel living in Pusan. Results indicated that they didn't significantly relate among the vendor selection criteria, information sources and the satisfaction with store performance except the harmony of buying products and existing products. Only the age and the buying experience showed significance in relation to demographics of apparel retailers among the vendor selection criteria, information sources and the satisfaction with store performance. The information source affected the vendor selection criteria was the street fashion, the apparel of entertainers, the other apparel buyer, and the owner of production. The findings had implications for retailers as well as for researchers.

• Journal of the Korean Society of Clothing and Textiles
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• v.19 no.6
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• pp.895-910
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• 1995

Journal of the Korean Society of Clothing and Textiles Vol. 19, No. 6 (1995) p. 895~910 The purpose of study was to estimate the consistency between brand image and shopping bag image, and also to find out the important factors which constructed the brand image. This study was conducted by means of a questionnaire survey of female students of moi or universities in Seoul. Frequency, percentage, mean, factor analysis, 1-test, ANOVA, Fisher's LSD, Coster analysis, MDS are used for data analysis. The result are as follows: 1) Brand image was devised into three factors: personality/modernity, nobility and usability. 2) The rate of consistency of brand image and shopping bag image was high in the brands of Benetton, System, Cresson, Be-art, Tomboy, Guess, Esprit, Anacapri, Mercoledi, Youngwoo in descending order. 3) The most important factor which represent the brand image was the choice of color. 4) This study found that shopping bags can be advertising media because they think that shopping bags played an important role as a walking advertising media on the street.

• Journal of Korean Society of Transportation
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• v.10 no.2
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• pp.25-42
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• 1992

The purpose of this paper is to construct a model to compute a progression adjustment factor on a signalized network. In a way to construct the model, a simulation method is introduced and the TRAF-NETSIM is used as a tool of simulation. The structure of the network chooses an urban arterial network so as to measure the effect of progression and compute average stopped delay on each link. A regression model is constructed by using the results of the simulation. The stepwise variable selection in the regression model in used. The findings of this paper are as follows: i)The secondary queue and platoon ratio are sensitive to the values of the progression adjustment factor ii) The continuous model can practically reflect on various situations in the real world. The platoon adjustment factor can be computed by this model and the data required for this model can be easily obtained in the field.

• Journal of the Semiconductor & Display Technology
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• v.7 no.3
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• pp.59-63
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• 2008

Geo-coding refers to the process of associating data with location information, and the system deals with geographic identifiers expressed as latitude and longitude or street addresses. Although many services have been launched, there still remains a problem for users to create geo-coded photo with manually labeling GPS(Global Positioning System) coordinate or synchronizing with separate devices. In this paper, we design and implement a geo-coding system which utilizes the time and location information embedded in digital photographs in order to automatically categorize a personal photo collection. An included GPS receiver labels a photograph with its corresponding GPS coordinates, and the position of the camera is automatically recorded into the photo image header at the moment of capture. The place and time where the photo was taken allows us to provide context metadata on the management and retrieval of information.

• ETRI Journal
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• v.28 no.4
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• pp.537-540
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• 2006

When multiple ZigBee wireless personal area networks (WPANs) are in close proximity to each other, contentions and collisions in transmissions will lead to increased packet delays. However, there is no existing study on how delay performance would be affected in a crowded real-life environment where each person walking down a busy street would be wearing a ZigBee WPAN. This letter studies the use of ZigBee WPANs in such a real-life environment for real-time heart beat monitoring. To be pragmatic, we derived a mobility pattern from the analysis of a real-life video trace. Then, we estimated the delay performance from the video trace by combining data collected from ZigBee experiments. The results show that the 300 ms packet delay requirement will not be met for only 11% of the time. When failure occurs, it will last for an average duration of 1.4 s.

• Journal of Advanced Marine Engineering and Technology
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• v.16 no.4
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• pp.39-49
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• 1992

The coherent wake structures behind a spinning cylinder placed in a uniform flow were experimentally investigated by means of phase averaging technique. With a fixed cylinder Reynolds number (Re=6,600), the conditionally sampled velocity vectors were obtained at a section of 3.0 and 10 diameters behind the cylinder for the range of spin parameter S(the ratio of the peripheral velocity to that of the uniform flow) 0 to 2. Spectral analysis and vorticity contours of the velocity data show that up to S=1.2, a Karman vortex street exists within the wake, however, the coherent structures become obscure and their vorticity strength decreases as S increase. Beyond S=1.2, a distinct vortex shedding frequency no longer exists, furthermore coherent structures disappear when S is over 1.6.