• 한국철도학회:학술대회논문집
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• 한국철도학회 2001년도 추계학술대회 논문집
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• pp.299-303
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• 2001

In this paper, we introduce the Partial Half-Through Type Plate Girder Bridge proposed by Hyundai Development Co. and KRTC Consortium in Turn-Key Based design last year, and this type of bridge may be adapted to the railway bridge under similar conditions. This bridge across the North Han River was to be concerned its find view and the protection of water source. For its location is inside the dam, it required the long span and the clearance for the flood also. Its new composite section was able to diminish the deflection and vibration. Its shop-fabrication could control its quality easily, and might to be launched. This structural type have satisfied its functions, construction situations, and overall safeties, so this is the field-oriented type. However the composition and connections of the proposed members are different to the recent forms, and difficult to be applied to present specifications. Therefore it requires a certification on the application for more safety by not only analytical verifications but also experimental studies. Nevertheless, this type of bridge may have some more applications from now on.

• 신재생에너지
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• 제9권1호
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• pp.33-43
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• 2013

The objective of this paper is to provide a review on the latest development on the main initiative and approaches for the sustainability criteria for biofuels. A large number of national and international initiative lately experienced rapid development in the review of the biofuels targets announced in the European Union (EU), United States (US) and other countries worldwide. The global biofuel targets are likely to have a strong impact on land use and agricultural markets. Although biofuels production provides new options for using agricultural crops, there are environmental, social and economic concerns associated with biofuel production. The diversity of feedstock, large number of biofuels pathway an their complexity lead to a high uncertainty over the greenhouse gas (GHG) performances of biofuels, in terms of GHG emission reductions compared to the fossil fuels, expecially if land use change is involved. This paper describes an overview of current status of ongoing certification initiative in Europe and worldwide for biofuels sustainability. It also provides mandatory requirements as part of an sustainability scheme in EU, United Kingdom, US and international approaches and should be reviewed to introduce based on global trends in Korea.

• 대한전자공학회논문지TC
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• 제40권4호
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• pp.22-29
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• 2003

개인 서비스 환경의 이동성과 전역 로밍을 위해 제안된 VHE(virtual home environment) 구조에서 가입자는 홈 망에서와 동일한 서비스를 방문 망에서도 제공받을 수 있게 된다. 가입자에게 서비스 이동성을 제공하기 위해서는 홈 망에 보관되어 있는 사용자 데이터와 서비스 로직이 방문 망으로 전달되어야 한다. 이 경우 사용자 프로파일과 서비스 로직은 보안에 민감한 정보를 포함하고 있으므로 통신의 신뢰성을 유지하기 위해서 모든 엔티티 사이의 상호 인증 절차가 요구된다. 이를 위해 본 논문에서 3G/4G 망의 VHE에 적용 가능한 3자간의 상호 인증 절차를 제안하고 분석한다.

• 한국응급구조학회지
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• 제8권1호
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• pp.141-148
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• 2004

The purpose of this study which was done by questionnaire survey on doctors, paramedics, radio operators, computer technicians, administrators in Emergency Medical Care Information Centers was to analyze demand on EMD education. The significant 101 data were collected in 12 Emergency Medical Care Information Centers from Dec. 17, 2003 to Jan. 31, 2004 and analyzed by using SPSS. The conclusions from this study were summarized as follows. Composition of respondents who work in Emergency Medical Care Information Centers were 40.7% 26-30 years old in age, 56.4% male in sex, 55.6% medical direction in duty, 76.2% paramedics in certificate. 54.5% out of the paramedics had two years present career, 62.3% had one year past career, 31.0% didn't receive EMD education, 39.0% wanted 5-8 hours continuing education. The paramedics received more EMD education on Introduction to Emergency Medical Concepts, Obtaining Information from Callers, Providing Emergency Care Instructions and wanted more continuing education on Providing Emergency Care Instructions, Key Questions & Pre-Arrival Instructions, Obtaining Information from Callers. This study will be helpful to build up an education system for EMDs such as continuing education, curriculum, certification.

• 한국군사과학기술학회지
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• 제12권5호
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• pp.609-614
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• 2009

In this paper, we have proposed a design for security network system passing through the non-security network which is commonly used for various networking services. Based on the security requirements which are assumed that the large classified data are bi-transmitted between a server and several terminals remotely located, some application methods of security techniques are suggested such as the network separation technique, the scale-down application technique of certification management system based on the PKI(Public Key Infrastructure), the double encryption application using the crypto-equipment and the asymmetric keys encryption algorithm, unrecoverable data deleting technique and system access control using USB device. It is expected that the application of this design technique for the security network causes to increase the efficiency of the existing network facilities and reduce the cost for developing and maintaining of new and traditional network security systems.

• Journal of Biosystems Engineering
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• 제39권3호
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• pp.174-183
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• 2014

Purpose: A robust, efficient auto-grading computer vision system for meat carcasses is in high demand by researchers all over the world. In this paper, we discuss our study, in which we developed a system to speed up line processing and provide reliable results for pork grading, comparing the results of our algorithms with visual human subjectivity measurements. Methods: We differentiated fat and lean using an entropic correlation algorithm. We also developed a self-designed robust segmentation algorithm that successfully segmented several porkcut samples; this algorithm can help to eliminate the current issues associated with autothresholding. Results: In this study, we carefully considered the key step of autoextracting lean tissue. We introduced a self-proposed scheme and implemented it in over 200 pork-cut samples. The accuracy and computation time were acceptable, showing excellent potential for use in online commercial systems. Conclusions: This paper summarizes the main results reported in recent application studies, which include modifying and smoothing the lean area of pork-cut sections of commercial fresh pork by human experts for an auto-grading process. The developed algorithms were implemented in a prototype mobile processing unit, which can be implemented at the pork processing site.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2008년도 추계 공동 국제학술대회
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• pp.316-321
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• 2008

In the present emerging global economy, as the focus is shifted from manufacturing to service sector, the efficiency of service operations is crucial for the county's sustainable growth and development. As one of the fastest growing service sector industries in South Korea, the call center has become an inevitable part of customer service for most companies. Despite of the strategic importance of the call center, there has been no empirical study on the efficiency of call center service operations in the literature. The main purpose of this study is to evaluate the technical efficiency of call center services so as to not only identify the current status of call center service operations, but also suggest ways to improve service operations efficiency. For this purpose, we apply a non-parametric efficiency measurement method, DEA (Data Envelopment Analysis), to domestic call centers in order to compare their relative efficiency. Based on DEA evaluations, we provided specific directions for the inefficient call centers to possibly improve their operation efficiencies. It is expected that the measurement methods suggested in this study can be applied to various issues such as service KS certification, service operations management, and the productivity analysis of service personnel.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2017년도 추계학술발표대회
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• pp.1173-1175
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• 2017

This paper proposes a system for convenient remote control and management of the lockers with a smart phone. The key features of the proposed system are as follows. First, we connect the lockers to the server and then use the authentication procedure to open and close their lockers. Second, we create instant lockers to increase convenience for users who need to use casual necessities. Unlike traditional analog methods, we finally develop certification procedures. Particularly, log data are better secured than traditional ones. The performance assessment of the proposed system is simulated by producing a dummy model. We will show that the proposed system could effectively support opening and closing the lockers using smart phones.

• 복식
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• 제58권9호
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• pp.99-113
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• 2008

This paper provides the foundation to settle the new paradigm in the beauty industry service quality by confirming the beauty industry service quality influence on customer satisfaction and loyalty through the actual verification. The scale of this study for measurement of beauty industry service quality is confirmed through the certification of reliability and feasibility with questionnaire investigation after confirmation of contents and preliminary feasibility. The dimensions and items for measurement of beauty industry service quality are selected with service ability(6), tangible(4), responsiveness(3), reliability(2), conveniency(2). And it is confirmed that the level of service quality is changing unlike a beauty-shop facility or cost recognized traditionally as a key factor to occupy the higher position in competition of beauty-shops. This thesis presents the important point of current issue about kinds of strategy which beauty industry should establish in providing the beauty industry service for occupying higher position in keen competition.

• KIEAE Journal
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• 제13권3호
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• pp.21-26
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• 2013

Recently, as the concern over environmental problem has been serious all over the world, carbon has become a key issue to mitigate the problem. In the field of Architecture, various sustainable assessment systems and LCCO2 assessment strategies have been developed, guiding low carbon building while planning. However, assessment system for low carbon neighborhood, which can be more efficient strategy, is still in the stage of research. In this paper, as a research for low carbon assessment system and planning guideline for neighborhood, scope meeting domestic condition has been set and sustainable assessment system for neighborhood, which is similar to low carbon concept, have been compared. LEED-Neighborhood Development, BREEAM-Communities, CASBEE-Urban Development, and GBCC-Apartment Houses were used for comparison. As a result, it is found that those systems has many differences in judging system, aggregating method, scope of evaluation, and relations with a building assessment system. The concern about carbon is not insufficient yet. Finally, assessment system for low carbon neighborhood, which is not only for establishing the plan, but also for giving guideline at the very first state of the plan, should be developed as fast as passible. With the result of this paper, establishment of assessment criteria and the way to measure quantitative $CO_2$ should be studied forward.