• 한국생활과학회지
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• 제8권3호
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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.

• 정보보호학회논문지
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• 제29권1호
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• pp.165-174
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• 2019

무인 복합 출력기는 길거리, 지하철, 학교, 도서관 등 공공장소에서 사용할 수 있기 때문에, 현재 많은 곳에서 사용되고 있다. 사용자들이 때로는 무인 복합기를 통하여 민감한 정보가 포함된 문서를 출력할 수 있기 때문에 무인 복합 출력기에서는 해당 문서를 안전하게 저장 및 관리되어야 한다. 본 논문에서는 무인 복합 출력기에 대한 다양한 보안 위협 가능성을 분석하고, 실현 가능한 다양한 공격 시나리오를 제시하였다. 제시한 공격의 실현 가능성을 검증하기 위하여, 실제 사용 중인 상용 무인 복합 출력기의 네트워크 트래픽을 분석한 결과, 다른 사용자의 스캔 파일을 탈취할 수 있으며, 무인 복합 출력기의 홈페이지에서는 다른 사용자의 문서를 탈취 할 수 있었다. 이를 이용하여 해당 사용자의 민감한 개인 정보 또한 획득할 수 있음을 확인하였다.

• 한국ITS학회 논문지
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• 제17권4호
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• pp.124-137
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• 2018

본 연구의 핵심은 공간상에 빈번하게 발생하는 범죄의 위험지점(Hotspot)을 찾고, 방범CCTV 적정설치위치를 도출하는 것이 목적이다. 범죄의 특징 중 하나가 과거 발생지역중심으로 군집하는 현상을 보이며 또한 이런 범죄들은 상호연관성이 강하다는 것이다. 범죄이력을 통해 군집이 발생한 원인과 범죄에 영향을 미치는 변수를 찾을 수 있다. 방법은 전통적인 OLS모델 외에 공간적 자기상관성을 포함하는 공간시차모델, 공간오차모델을 적용하여 5대 범죄율과 절도율, 외국인 거주율에 영향을 미치는 변수를 선정하였다. 5대 범죄에 영향을 미치는 변수는 생활보호대상자율과 풍속업소율에는 양(+)의 부호로, 가로등 밀집도에는 음(-)의 부호로 나타나. 생활보호대상자가 군집한 지역, 풍속업소 군집지역, 다문화가정이 많은 지역, 가로등 밀집도가 낮은 지역을 중첩하여 위험공간으로 선정하고, 이를 근거로 기존 CCTV영역이 Hotspot의 46%를 담당하고 있다는 사실을 밝혀냈다. 현재 운영 중인 CCTV를 감안한 상태에서 위험지점을 커버할 신규물량은 총 89대로 나타났다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집E
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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.

• 복식문화연구
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• 제6권4호
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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.

• 한국의류학회지
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• 제19권6호
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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.

• 대한교통학회지
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• 제10권2호
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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.

• 반도체디스플레이기술학회지
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• 제7권3호
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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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• 제28권4호
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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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• 제16권4호
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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.