• 디지털융복합연구
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• 제12권7호
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• pp.21-36
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• 2014

본 연구는 과학기술 발전에 따른 테크놀로지 기반의 교육이 확산됨에 따라 교사와 학생의 디지털 기기 보유가 필수적으로 요구되지만 정부의 예산으로 이를 충당하는 데는 현실적인 한계가 있으므로 그 대안으로서의 BYOD를 고려하고, 정책 시행을 위한 구체적인 방안을 탐구하는 것을 목적으로 수행되었다. 구체적으로 BYOD의 개념과 특징이 소개되었으며, 선도모델로서의 미국의 수행사례들을 통한 장단점이 분석되었고, 이에 기반하여 BYOD의 국내 운영 가이드라인이 제도적 측면과 인프라 측면이 제시되었다. 제도적 측면으로는 주로 기술적 문제, 활용, 파손, 정보격차, 정보보호, 자원활용 등이 논의되었으며, 인프라 측면은 활용기기의 조건, 네트워크, 필터링, 소프트웨어 등이 다루어졌다. 결론적으로, BYOD는 교육에서 테크놀로지를 활용하기 위한 정책적 대안으로서, 제도 및 인프라 정비를 완료하여 성공적인 실행을 도모하기 위한 철저한 준비가 필요함이 강조되었다. 본 연구는 BYOD 시행을 위한 세부적인 지표와 대응전략을 설정하였다는데 의의가 있으며, 이를 바탕으로 향후 본격적인 시행의 기반이 될 것으로 기대할 수 있다.

• International Journal of Railway
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• 제2권2호
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• pp.93-97
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• 2009

The experiments for aerodynamic characteristics of railway acoustic screen are performed using 1/61 scaled-down moving model rig facility which employs an axis symmetry and one wire guidance method. The launching mechanism is an air-gun type. The train model for the experiment is the high speed train (Korea Train Express: KTX) and the tested speed is about 300 km/h. The tested train length is 61 em which is corresponding to two units of KTX train. The cross sectional area and weight of train model are 0.00264 $m^2$ and 287 g, respectively. The Reynolds number based on the model train length is $1.2{\times}10^7$. The strength of pressure wave is measured using piezo typed pressure sensor. The measured pick value of pressure was as high as 365 Pa in the shortest gap between the acoustic screen and model train. The measured pressure is well compared with the field test data of mc 779-1 [2] values. However, the experimental data were slightly lower than the mc 779-1 values. The results show the model test can be used as a substitute for the field test.

• 한국의상디자인학회지
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• 제14권1호
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• pp.131-150
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• 2012

The purpose of this study is to provide the characteristics of marketing strategy on the SPA(Specialty store retailor of Private label Apparel) brand. This research can be used as information for the domestic SPA brand to enhance its international competitiveness. The characteristics of marketing strategy on the SPA brand are as follows. 1. One company integrate vertically the process of planning, production, promotion and distribution. 2. As using the advanced information, productions, and logistics systems, they are carried out speedy management. 3. The production strategies are focused on providing new goods of fast cycle and very diverse styles in a season, developing products that accurately reflect the general market trend and consumer demands, extending the line of goods, outsourcing of the place to reduce production costs. For high-quality goods, they are collaborating with the famous designers and developing of new and green environment materials. 4. Generally, the SPA brand emphasizes the low price strategy against the quality. 5. The promotion strategies are focused on conducting various unique and high sensible VMDs, fashion shows, star marketing, campaigns, aggressive publicity, magazine & outdoor advertisement and various events through the internet website, etc. 6. The place (distribution) strategies of SPA brand are focused on launching into global, expanding number of stores, increasing large-sized stores and diversifying the forms of store and selling.

• 패션비즈니스
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• 제24권3호
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• pp.40-50
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• 2020

The home furnishing and living market is growing because of the increasing interest of consumers in living spaces. In this trend, global fashion companies are seeking to increase sales by expanding their businesses by launching their own home lines or brands early, taking advantage of the various advantages of each brand. In response, this study was designed to examine the strategies necessary for domestic fashion brands to pursue their business in the future by conducting a case study and characteristics analysis of the living brands of foreign fashion companies in line with the trend of expanding their living-related businesses. The following is an analysis of the characteristics of the living brands of global fashion companies. First of all, utilizing the brand awareness of fashion companies; second, the strength of unique textile designs; and third, the expansion of synergy through the expansion of the business into various fields. Fourth, the lack of diversification in materials suitable for living products; fifth, the lack of information on quality; sixth, the lack of space and contents for living areas. Finally, a living brand strategy of a domestic fashion company was proposed as follows. First, it proposed collaboration with textile design companies and designers; second, it proposed exploring business models through the inclusion of brand licenses; and third, it proposed expanding the planning of living products of private brand by distribution companies.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2005년도 제24회 춘계학술대회논문집
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• pp.386-393
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• 2005

The objective of the present study is to develop a new type of the Ballistic range, called 'two-stage light gas gun'. A computational work has been performed to investigate the aerodynamics of a projectile which is launched from the two-stage light gas gun. A moving coordinate method for a multi-domain technique is employed to simulate unsteady projectile flows with a moving boundary. The effect of a virtual mass is added to the axisymmetric unsteady Euler equation systems. The computed results reasonably capture the major flow characteristics which are generated in launching the projectile supersonically, such as the interaction between the shock wave and the blast wave, the interaction between the vortical flow and the barrel shock, and the steady under-expanded jet. The present computational results properly predict the velocity, acceleration, and drag histories of the projectile.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 춘계학술대회
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• pp.592-599
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• 2005

Renewable energy technology development has been carrying out in 11 different areas so far. Many technologies are being applied to the required areas according to its own characteristics. Before launching the development, these technologies have been evaluated by their commercial effect and contribution to energy supply. In this paper, the impact factors enhancing the distribution of renewable energy were developed to select appropriate diffusion regulations for each technology area. In addition, AHP methodology was introduced to investigate priorities of the regulations along with weights of impact factors.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2001년도 추계학술대회 논문집
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• pp.91-94
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• 2001

The exponential growth of the Internet usage has motivated the launching of many commercial business web sites. Internet as a purchasing medium shows several unique characteristics because of its customer- driven technologies and absence of physical products. Thus, new commercial medium provokes a reclassification of products. Twenty five types of commercial Products are empirically tested in the Internet retailing and found to be grouped into four categories. This classification framework is investigated in the view of involvement and web technology Furthermore, this paper proposes four business web implementation strategies - impressive, simple, sensory, and semantic - based on the product classification. Proposed guidelines on business web might increase customer satisfaction.

• 신재생에너지
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• 제1권2호
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• pp.79-90
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• 2005

New & renewable energy technology development has been carrying out in 11 different areas so far. Many technologies are being applied to the required areas according to its own characteristics. Before launching the development, these technologies have been evaluated by their commercial effect and contribution to energy supply. In this paper, the impact factors enhancing the distribution of renewable energy were developed to select appropriate diffusion regulations for each technology area. In addition, AHP methodology was introduced to investigate priorities of the regulations along with weights of impact factors.

• International Journal of Aeronautical and Space Sciences
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• 제3권2호
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• pp.67-75
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• 2002

In the course of missile system design, jet plume impingement is encountered in designing airframe as well as launchers, requiring careful investigation of its effect on the system. In the present paper, recent works on such topic are presented to demonstrate usefulness of CFD results in helping design the hardware. The jet impinging flow structure exhibits such complex nature as shock shell, plate shock and Mach disk depending on the flow parameters. The main parameters are the ratio of the jet pressure to the ambient pressure and the distance between the nozzle and the wall. In the current application, the nozzle contour and the pressure ratio are held fixed, but the jet impinging distance is varied to illuminate the characteristics of the jet plume with the distance. The same methodology is then applied to a complex vertical launcher system (VLS), capturing its flow structure and major design parameter. These applications involving jets are thus hoped to demonstrate the usefulness and value of CFD in designing a complex structure in the real engineering environment.

• Journal of the Optical Society of Korea
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• 제14권4호
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• pp.351-356
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• 2010

We investigated the combined effect of fiber chromatic dispersion and self-phase modulation (SPM) in multi-channel subcarrier multiplexed (SCM) optical transmission systems. We theoretically analyzed the transmission characteristics of the SCM signals with the effect of SPM and chromatic dispersion in a single-mode optical fiber by numerical simulations based on the nonlinear Schrodinger equation. The numerical simulation results revealed that the effect of fiber dispersion and SPM could occur independently between subcarrier channels in two-channel SCM systems for small optical modulation index (OMI) and large channel spacing. However, for large OMI, small channel spacing, and large fiber launching power, we found a performance degradation of the two-channel system compared to that of a single-channel system. These parameters are therefore important for the optimization of multi-channel SCM systems applicable to radio over fiber networks.