Identification of quantitative trait loci(QTLs) associated with drought tolerance in rice(O. sativa L.)

조준현 영남대학교 대학원 2000 국내박사

AIN 소재의 연삭 가공 특성에 관한 연구

조준현 금오공과대학교 2013 국내석사

작동조건에 따른 고분자전해질형 연료전지(PEMFC)의 과도응답특성과 공기극 플러딩 연구

조준현 서울대학교 대학원 2008 국내석사

Stoker 燒却盧에서 生活廢棄物과 下水슬러지의 混合燒却에 관한 연구

조준현 釜山大學校 環境大學院 2004 국내석사

In this study, proximate and elemental analysis of municipal solid waste(MSW) in Gimhae city and sewage sludge(SS) produced from Jang-u wastewater treatment plant were investigated and analyzed. On the basis of calculated heating values using Dulong and Steuer equations, The variation of heating value, quantities and characteristics of flue gas between end points of boiler and stack in the stoker-type incinerator in accordance with mixing ratio of SS for co-combustion with MSW and SS. Finally, the impacts on the air pollution control systems as like as semi-drying reactor(SDR), bag filter(B/F) and selective catalytic reduction system(SCR) were analyzed. The conclusion of this study was as follows. 1. The optimal mixing ratio of SS with 80% moisture contents for co-combustion with MSW in stoker type incinerator was 5% of total wastes and optimal moisture contents of final dried sludge was 25 to 30%. 2. The low heating values of MSW in accordance with mixing ratio 10∼20 ton/day SS with 25% moisture contents increased about 2,588 kcal/kg over than 2,400kcal/kg as design standard heating value of high grade MSW. However, the sewage sludge with over 30% moisture contents decreased under 2,100 kcal/kg. Therefore, the auxiliary fuel should be provided to the stoke typed incinerator with capacity of 200 ton/day. 3. The impacts on the air pollution control systems as like as SDR, B/F and SCR caused by SS mixing were partially investigated but the variation of hazardous material's concentration at the stack of incinerator in Gimhae city were under 10%. Therefore, It was concluded that the feeding of 15 tons dry basis SS per day into the stoker typed MSW incinerator with capacity of 200 tons/day did not impact on the air pollution control systems.

東아시아 NIES의 成長要因에 관한 比較分析 : 1960-70年代 韓國과 臺灣의 經濟政策 性格과 役割

조준현 부산대학교 대학원 1999 국내박사

Most of comparative studies on the economic growth of developing countries, especially those of Latin America and East Asia, have emphasized upon what development strategies and policies were taken up. But they used to pass over the importance of the structure and process of policy decision. This study does not put the focus on what development strategy and policy were adopted, but on how the strategy and policy were adopted. Namely what is the factor of policy decision in each developing country, and with economic and social results it bear. Generally the critical factor of policy decision in most Developing Countries is external restriction, market pressure and/or political pressure. After the liberalization from the rule of Imperial Japan, Korea and Taiwan began their first stage of economic development with Import Substitutional Industrialization strategy. In the early of 1960s, Korea and Taiwan carried out the policy conversion from Import Substitutional Industrialization to Export Led Growth. It was caused from the shortage of foreign exchanges came after the conversion of U.S. foreign aid policy. The policy conversion in Korea and Taiwan was also influenced by the U.S. political pressure linked up economic support to the institutional reform. In the early 1970s, Korea and Taiwan began new step of their development stages, so called Heavy and Chemical Industrialization. To this policy conversion, the deterioration of trade balance and the shortage of foreign exchanges acted critical role again. The external pressure those gave rise to this conversion are the international monetary crisis in 1971 and the first oil crisis in 1973. These examples show that the external restrictions, such as the changes of international economic environment, are the basic factor to the policy decision of developing countries. But it is questionable that why the same or similar pressure cause countries to adopt different development strategies and policies. The reason is each developing country has its own internal structure, not only economic but also political and social. In Korea and Taiwan, the success of Export Led Growth strategy was caused by the reform of incentive system to export. And the institutional reform was accomplished by the strong support of each government. The success of policy conversion in developing countries fundamentally depends upon the governments´ ability to execute this reform. It demands independence of the government from the claims of social groups, the centralization of the power of policy decision, and the applicable politic tools. The East Asian NIES, including Korea and Taiwan, generally have filled up these conditions. This is the critical factor of East Asian economic performance. Of course there are many significant differences among the strategies and economic policies of East Asian NIES. The second concern of this study is the differences of economic policies between Korea and Taiwan. There are two important differences. First, financial and fiscal policies of Taiwan were more conservative than those of Korea. For example, after 1949 Kuomintang government have emphasized restrained monetary control and high interest rate policy for anti-inflation. But contrastively in Korea, the real interest rate was low, and it often fell under zero. Korean government have been used to prefer monetary expansion to stabilization, and to tolerate inflation. For another example, Taiwan have maintained budgetary balance during its economic development. But in Korea, the deficit budget have been frequent. Second important difference between Korea and Taiwan is the enterprise policy. In Taiwan, the government have supported public sector including government owned enterprises than private sector. So Tacitness small and medium size private enterprises were put into wide competitive condition in the domestic market. It forced them to react rapidly and exactly to the demands of foreign market. But contrastively in Korea, the government have mainly supported big private enterprises and conglomerates, named Chaebul. So in Korea it was Chaebul that explored foreign market, and public enterprises have assisted private sector. And small and medium size private enterprises were vertically integrated to big enterprises. It is true that the economic development of East Asian NIES own much to the governments' guidance. But recently, they are suffering many significant changes in the role of government. The direction of these changes are clear, but their results are uncertain. This is the very challenge that East Asian NIES meet at the front of face.

한류관련상품의 수출활성화 방안

조준현 건국대학교 대학원 2014 국내박사

본 연구는 세계적인 “한류붐”으로 인하여 한국상품의 수출이 증가하고 있는 가운데 이를 학문적으로 분석함으로써 장기적이고 안정적인 수출을 통해 국가경제에 이바지 할 수 있는 수출활성화 방안을 제시하고자 한다. 연구목적에 따라 선행연구와 현황분석을 통하여 한류관련상품 수출시의 문제점을 도출하였고 이에 따른 수출활성화방안을 제시하였다. 한류관련상품 수출시의 문제점으로는 첫째, 한류와 문화콘텐츠간의 상관관계 정립이다. 한류와 문화콘텐츠는 서로 영향을 미치는 관계로써 한류의 영향력이 줄어들면 문화콘텐츠 수출도 감소한다. 둘째, 한류관련상품의 제한성이다. “한류붐”으로 인하여 수출이 증가하고 있는 상품은 화장품, 의류, 음료, 주류 및 액세서리 등으로 수출품목에 제한성을 가지고 있다. 셋째, 가격경쟁력에 따라 수출에 제한을 받고 있다. 대부분의 한류관련상품은 중저가 제품이다. 넷째, 한류관련상품의 이벤트 제한성이다. 해외 한류 팬들이 한류스타를 만날 수 있는 기회는 콘서트와 팬 사인회 등으로 한류스타가 노출되는 횟수가 극히 제한적이다. 다섯째, 한류를 빙자한 사기가 발생하고 있다. 이와 같은 문제점을 해결하기 위한 한류관련상품의 수출활성화 방안 으로는 첫째, 새로운 한류장르를 개발해야 한다. 문화적 할인요소가 높은 한국민요·국악에 할인요소가 낮은 IT나 재즈 등을 결합하거나 영화의 경우 세계화 할 수 있어야 한다. 또한, PPL 마케팅의 활용으로 관련상품의 연관성을 높이고 드라마의 경우 진출국가의 문화와 정서를 고려한 다양한 스토리와 상품개발이 필요하고, K-POP의 경우 여러 장르의 개발과 가수의 폭을 넓혀야 한다. 둘째, 수출 품목수를 확대하야 한다. 드라마의 경우 막장드라마에서 벗어나 가족모두가 볼 수 있는 홈드라마를 지향하고 K-POP의 경우 아이돌 위주의 댄스 음악에서 발라드 등 그 장르를 다양화함으로 팬층을 확대해야 한다. 장르가 다양화되고 팬층이 확대되면 그만큼 수출 품목수도 늘어나게 될 것이다. 셋째, 가격경쟁력을 확보하기 위해 중저가 제품 수출의 단점을 보완할 수 있는 대책이 필요하다. 아이돌을 활용하는 상품의 경우 타겟층과 가격의 다변화 전략이 필요하다. 또한 중저가 상품이지만 품질이 우수하고 차별화된 한류관련상품을 개발하여야 한다. 넷째, 한류관련상품의 노출기회를 확대해야 한다. 콘서트 혹은 개인별 팬 사인회와 같은 이벤트 행사를 진행하고, 동시에 한류관련상품의 홍보를 위해 현장판매 또는 선물제공 등으로 관객이 직접 참여하게 하여야 한다. 이를 통해 한류관련상품을 수출하려는 중소기업이 자사 제품을 홍보할 수 있는 좋은 기회를 마련해 주어야 한다. 다섯째, “한류붐”를 악용하여 한류관련상품으로 둔갑한 사기발생을 방지하여야 한다. 한류 문화콘텐츠 및 관련 산업에 대한 관리·지원기관을 설립하고, 지속적으로 한류관련상품의 수출이 활성화될 수 있도록 정부가 지원하여야 한다. 여섯째, 한류지원제도를 강화해야 한다. 선택과 집중, 기초분야 지원을 통한 글로벌 콘텐츠 육성, 내수시장 경쟁력 확보를 위한 기반 확충을 위해 창작의식 고취를 위한 콘텐츠 수익‧유통구조 개선, 창조경제의 생동력 제고를 위해 문화콘텐츠산업 금융지원 확대를 하여야 하며 통상환경을 고려한 균형 있는 지적재산권 보호대책 마련, 해외마케팅 전방위 지원 이를 위해 글로벌 코디네이터 양성, 제조업보다 포괄적이고, 광범위한 수출자금 및 해외마케팅 지원을 하여야 한다. 또한 통합 지원기구 출범에 따른 시스템 및 지원제도의 효율성 제고와 문화콘텐츠를 적극 활용하여 국가브랜드 제고를 위해 지속적으로 관리하여야 한다. This study was intended to present the export revitalization scheme conducive to national economy through long-term and stable export by making an academic study about the increasing export of Korean products due to the global “Korean-wave boom”. For this purpose, it attempted to elicit the problem arising from the export of products related to the Korean wave through analysis of previous studies and the present situation and present the accompanying export revitalization scheme. As a result, the following problems arising from the export of products related to the Korean wave were found: First, it is a need to establish the correlation between the Korean wave ad cultural contents. As the Korean wave and cultural contents have a mutual effect on each other, the reduced influence of the Korean wave leads to the reduced export of cultural contents. Second, there is the limitation of product related to the Korean wave. The products whose export is increasing due to the “Korean-wave boom” include cosmetics, clothing, beverage, liquor and accessory. Third, there is the restriction put on export according to price competitiveness. Most products related to the Korean wave are low and middle-priced ones. Fourth, there is the limitedness of the event of products related to the Korean wave. As for the opportunity for foreign Korean-wave fans to meet Korean-wave stars, the frequency of exposure to Korean-wave stars through concerts and fan sign meetings is extremely limited. Fifth, there is the occurrence of fraud dependent on the Korean wave. To resolve the above problems, this study presented the following scheme for export revitalization of products related to the Korean wave: First, there is a need to develop a new Korean-wave genre. It is necessary to combine IT, jazz and so on of the low discount element with Korean ballard and Korean classical music of the high discount element or globalize cinemas. the discount element. And it is necessary to enhance the association between related products with the use of PPL marketing and develop a diversity of stories and products considering the cultures and emotions of countries importing Korean dramas. And it is necessary to develop several genres and broaden the width of singers in relation to K-POP. Second, it is necessary to expand the number of export items. The fan base should be expanded by getting out of the violent dram and becoming oriented towards the home dram enjoyable by all family members and diversifying the genre of K-POP ranging from idol-centered dance music to ballard. The number of export items will increase with the diversification of genres and the expansion of the fan base. Third, it is necessary to take the measure to complement the shortcomings of low and medium-priced product export in order to secure price competitiveness. It is necessary to establish the diversification strategy of the target base and price in case of products making good use of the idol. And products related to the Korean wave should be developed that are low and middle-priced but good quality and differentiated. Fourth, it is necessary to expand the opportunity for exposure to products related to the Korean wave. For this purpose, it is necessary to host events such as concerts or individual fan sign meetings and enable the audience to take personal part in public relations of products related to the Korean wave by selling them on spot or providing them with the gift at the same time. This should enable the small businesses intending to export products related to the Korean wave to be provided with a good opportunity to engage in PR of their products. Fifth, it is necessary to prevent the fraud committed by disguising some product as the product related to the Korean wave with the misapplication of the “Korean-wave boom”. And government should establish the management and support agency for Korean-wave cultural contents and related industries and continue to provide support for the export of products related to the Korean wave to be revitalized. Sixth, the system for support of the Korean-wave is needed. For this purpose, it is necessary to cultivate global contents through choice, concentration and support for basic fields, to improve the contents profit and distribution structure to expand the base for securing the competitiveness of the domestic demand market and enhancing creative consciousness and to expand financial support for the cultural contents industry to enhance the vitality of creative economy. And it is necessary to take the measure for protection of balanced individual property considering the trade environment, provide a full range of support for overseas marketing and train and educate global coordinators to this end, and provide support for more comprehensive and wide-ranging export fund and overseas marketing than manufacturing business. And it is necessary to continue to enhance the efficiency of the system related to the launch of the integrated support organization and of the support system and raise the national brand by making active use of cultural contents.

깊이별 분리 합성곱 신경망을 이용한 속도 모델 구축

조준현 부경대학교 2021 국내석사

Accurate velocity model building is one of the most important tasks in seismic survey. Recently, as deep neural networks have gained huge popularity in the field of geophysics, studies have been published to predict velocity models using regular convolutional neural networks. In this paper, we proposed Tomography_CNN with depthwise separable convolutions encoder-decoder structure for velocity model building. This network is trained in supervised learning approach and we predicted P-wave velocity models not only from time-domain wavefields but also from laplace-domain wavefields. The depthwise separable convolutions, fundamental part of this network structure, perform spatial-oriented convolutions independently of each input channel. Depthwise separable convolutions can improve network performance as well as computational cost compared to regular convolutions. Synthetic velocity models generated for training contain a variety of geologic features, including stratigraphic structure, syncline and anticline structure, fault and salt-dome. We compared network trained with time-domain wavefields and network trained with laplace-domain wavefields using the same number of model parameters and same hyperparameters. Time-domain network had shown very promising results on test data and laplace-domain network had shown reasonable results on test data. In addition, time-domain network took a long time to train due to enormous data, but the prediction cost of one velocity model after training is negligible. Laplace-domain network could reduce the training time about 40% or more compared to time-domain network.

Study on transient response characteristics of a PEM fuel cell related with structure and degradation effects of a gas diffusion layer

조준현 서울대학교 대학원 2012 국내박사

고분자 전해질형 연료전지(PEMFC)를 부하 변화가 자주 요구되고, 장시간 운전이 요구되는 차량용으로 사용하기 위해서는 과도 응답 특성과 내구성 문제에 관한 연구가 필수적이다. 기체확산층(GDL: Gas Diffusion Layer)은 연료전지 내부의 물질 전달 메커니즘에 직접적으로 영향을 미치는 구성 요소로써 연료전지 성능을 확보하기 위해서는 물 관리 능력을 향상시키기 위한 GDL의 적절한 설계가 중요하게 된다. 하지만 과도 응답 특성 및 내구성 문제는 물질 전달 특성과 관련 있음에도 불구하고 GDL 내부의 이상 유동 메커니즘에 대해 실험적, 수치적으로 해석하기 어려워 물질 전달의 통로가 되는 GDL과 연관시켜 체계적으로 분석한 연구는 거의 없다. 또한 이다. 따라서 본 연구에서는 다양한 실험 결과들과 지배방정식들을 연계 해석하여 GDL의 특성과 내구성능 저하가 PEM연료전지의 과도응답 특성에 어떠한 영향을 미치는지에 대해 분석하였다. 첫째로 다양한 작동조건에서 과도 응답 특성과 공기극 플러딩 현상에 대하여 분석하였다. 다양한 당량비, 온도, 습도, 플러딩 강도 조건에서 순간적인 전류 밀도 변화에 따른 연료전지 전압을 측정하였다. 또한 가시화셀을 이용하여 공기극의 채널 플러딩 이미지를 얻어 분석하였다. 저부하에서 고부하로 운전시 성능이 순간적으로 하락하는 언더슈트 현상이 나타나고 이는 두 개의 시간 지연 특성을 가지는 사실을 밝혔다. 내부에서 생성되는 물이 채널 표면까지 도달하는데 약 1초의 시간 오더를 가지고, 이 때 산소의 공급이 일시적으로 저하되어 전압 손실이 발생하게 되어 언더슈트 현상이 나타난다는 사실을 분석하였다. 두번째로 GDL의 구조적 특성이 과도 응답에 미치는 영향에 대해 분석하였다. GDL은 기재, 미세다공층(MPL: Micro Porous Layer)과 MPL 침투층으로 구분할 수 있으며 각각의 설계인자들을 선정하여 다양한 GDL을 제작하여 분석하였다. 기재에 표면적이 넓은 활성 탄소 섬유를 첨가하여 GDL 제작시 첨가되는 탄소 필러, 수지, PTFE의 분포를 조절함으로써 기재의 다공층 구조가 과도 응답 특성에 미치는 영향을 분석하였다. 또한 MPL 침투 깊이, MPL 슬러리 액밀도 조절, 약소수성층 및 pore path 추가와 같은 MPL 설계인자에 따른 과도 응답 특성을 분석하였다. 특히 물을 함유하는 특성을 가진 GDL의 경우 급격한 부하 변화시에 멤브레인 쪽으로 물을 공급하는 능력이 우수하여 탈수된 멤브레인이 빠르게 수화되면서 이온전도도가 향상되어 성능 회복이 빨라지는 결과를 얻었다. 결과들을 통해GDL 내부에서 물질전달을 결정짓는 주된 힘은 모세관압 구배이며 GDL 설계에 따라 달라짐을 밝혔다. 이로부터 멤브레인의 물 함유량 회복속도에 GDL이 영향을 미쳐 연료전지의 과도 응답 특성이 달라진다는 사실을 밝혀내었다. 마지막으로 GDL의 내구성능저하가 과도 응답 특성에 미치는 영향을 분석하였다. 가속화 내구 평가 기법을 개발하여 GDL의 소수성 및 구조 변화에 따른 연료전지 동적 성능 변화를 분석하였다. GDL 내부에 발생한 국부적인 소수성 감소지역에 물이 정체되어 국부적 플러딩 현상이 나타나 멤브레인의 수화 및 산소 공급이 불규칙해져 전압 성능이 낮아지고 불안정해지는 사실을 분석하였다. 내구 저하 방법에 따라 GDL의 각각 다른 부위가 손상되어 성능 저하 양상이 달라짐을 보였다. 또한 포어 네트워크 모델링을 통하여 내구 저하된 GDL에서의 물 분포를 분석하여 국부적 플러딩 현상이 생기는 사실을 밝혀내었다. 본 연구에서는 물질 전달의 핵심이 되는 GDL의 구조적 특성 및 내구성능 변화를 고분자 전해질형 연료전지의 과도 응답 특성과 연계하여 체계적으로 분석하였다. 본 연구는 연료전지 모델링 평가 및 검증, 연료전지의 최적 설계 그리고 연료전지 차량의 제어 로직 및 운전 전략을 수립하는데 도움이 될 것이다. The transient response characteristics and durability problems of proton-exchange membrane fuel cells are important issues for the application of PEM fuel cells to automotive systems due to a frequent load change and a requirement for a long term operation. Gas diffusion layer (GDL) is the key component of the fuel cell because it directly influences the mass transport mechanism. Thus, the optimal design of the gas diffusion layer is a crucial process to enhance the water management ability for better performance of the PEM fuel cell. However, few papers have attempted to study dynamic behaviors and durability issues related with the gas diffusion layer. In addition, it is difficult to directly analyze two-phase mass transport mechanism inside the GDL by both experimental and numerical methods. In this study, the transient response of a PEM fuel cell related with characteristics of the GDL and GDL degradation effects is studied by analyzing various experimental results and proven theories. At first, a systematic transient response and cathode flooding phenomena during the load change are investigated in order to determine effects of operating conditions. The cell voltage was acquired according to the current density change under a variety of stoichiometric ratio, temperature and humidity conditions, as well as different flooding intensities. Using the transparent fuel cell, the cathode gas channel images are obtained simultaneously with a CCD imaging system. It is shown that the undershoot behavior consists of two stages with different time delays; one is on the order of 1 second and the other is on the order of 10 seconds. It takes about 1 second for the product water to come up to the flow channel surface so that the oxygen supply is temporarily blocked, which causes voltage loss in that "undershoot". The correlation of the dynamic behavior with stoichiometric ratio and cathode flooding is analyzed from the results of these experiments. Secondly, structural effects of the GDL on the transient response were investigated. Design parameters were varied in each GDL structure which consists of substrate, micro porous layer (MPL) and MPL penetration part. The activated carbon fiber (ACF) which has a large surface area is added in the substrate to enhance attachment of components such as carbon fillers, resins and PTFE, thereby controlling a pore structure of the substrate. Thickness of the MPL penetration was varied to investigate effects of the MPL penetration part. The MPL slurry density was varied and functional structures which have less hydrophobic layer and pore path were added in the MPL. All these design parameters affect the water management ability of the GDL inducing different characteristics of the transient response of the PEM fuel cell. In special, GDLs, which have a better water holding ability, enhance the recovery of voltage performance after undershoot because the GDL increases water supply to the dehydrated membrane due to a higher concentration of water in the GDL. It was shown that capillary pressure gradient is main driving force through the GDL and this capillary pressure gradient is determined by structure of the GDL. The correlation of the transient response with water management characteristics of the GDL which affect the water content of the membrane was investigated. Finally, the effects of GDL degradation on the transient response of the PEM fuel cell were systematically studied. With GDLs aged by the accelerated stress test, the effects of hydrophobicity and structural changes due to carbon and hydrophobicity loss in the GDL on the transient response of PEM fuel cells were determined. The degraded GDLs that had changed capillary pressure gradient cause local water flooding inside the GDL inducing uneven membrane hydration and oxygen depletion, thereby causing lower and unstable voltage responses after the load changes. Dissolution aging and corrosion aging induces degradation at different location of the GDL respectively, thereby different performance decrease phenomena were obtained. Using a pore network modeling (PNM) of the aged GDL, this phenomenon is also verified. A water-lake is formed inside the GDL where water tends to stay in lower capillary energy spots. This systematic research on the transient response of the PEM fuel cell related with the characteristics and degradation effects of the GDL contributes to the evaluation of fuel cell modeling, development of optimal cell design, and the construction of control logic and driving strategy for a fuel cell vehicle.

온톨로지 기반 건설 직종별 안전교육 콘텐츠 공유를 위한 데이터 구조화

조준현 중앙대학교 대학원 2023 국내석사

건설 산업에서의 사고는 여전히 전 세계적으로 주목받고 있으며, 사고의 경감을 위해 다양한 노력을 기울이고 있다. 사고의 직접적인 원인인 불안전한 상태를 제거함으로써 안전사고를 예방할 수 있는 건설안전교육이 주목받고 있지만, 안전교육의 형식적인 시행 및 교육에 사용되는 콘텐츠의 재사용, 정보의 집약적인 형태로 인해 특정 정보만을 전달하기 힘들다는 문제로 인해 교육의 효과성은 여전히 저조하다. 다양한 도메인 내 저장되어 있는 정보들은 안전교육 콘텐츠로서 활용 가능하지만, 해당 콘텐츠의 비 구조적인 형태와 다양한 도메인에 분산되어 있다는 문제로 인해 현장의 직종별 적절한 교육을 실시하기까지 많은 시간을 소모하게 만든다. 따라서 본 연구에서는 비 구조적인 데이터의 관리 및 활용을 원활히 할 수 있는 툴을 활용한 정보의 구조화를 통해 직종별 맞춤형 안전교육 콘텐츠의 구조화 모델을 제안하였다. 모델의 설계 과정은 크게 3가지로, 모델을 구성하는 요소에 대한 기술, 모델의 클래스 및 특성을 반영하기 위한 Schema 작성, 모델 내 인스턴스 생성을 위한 각 도메인 별 메타데이터 추출 및 모델 내 매핑 과정 순으로 기술하였다. 모델의 활용방안을 제시하기 위해 특정 공종 및 작업을 사고통계에 기반하여 선정하고, 작업에 관련된 콘텐츠들에 대한 인스턴스를 생성하여 모델을 통한 정보의 검색 및 공유에 대한 활용방안을 제시하였다. 이후, 모델 내 정보의 검색에 대한 추론과정을 분석하고 앞서 설계한 의미관계에 대한 검증과 정보의 효율적인 검색이 이루어지는지 확인하였다. 특정 작업 상황에 대해 설정하고, 해당 상황에서 필요한 안전교육 콘텐츠를 검색함으로써 추론과정 분석을 통한 적정 콘텐츠가 도출되었는지 확인하였다. 설계된 모델은 특정 안전교육 콘텐츠의 특성을 키워드 형식으로 반영하고, 키워드 간의 관계정의로 인해 직종 별 작업 내용에 맞는 자료가 추론되어 효율적으로 정보의 검색 및 공유가 이루어지는 과정을 통해 구조화된 데이터를 효율적으로 관리할 수 있다는 장점을 지닌다. 제안된 모델을 활용하여 다양한 도메인에 분산되어 있는 비 구조적인 데이터의 구조화 및 통합 분류 체계를 통한 구조화된 정보의 공유가 가능할 것이고, 이는 모델을 기반으로 한 플랫폼의 개발을 통해 근로자 간의 경험지식 공유 및 자율안전활동에 기여하고 교육의 효과성 또한 높아질 것으로 기대할 수 있을 것이다. Accidents in the construction industry are still attracting worldwide attention, and various efforts are being made to mitigate them. Although construction safety education, which can prevent safety accidents by eliminating unsafe conditions that are the direct cause of accidents, is attracting attention, specific information retrieval and sharing is limited due to the formal implementation of safety education, the reuse of contents used for education. The effectiveness of education is still low due to the problem that it is difficult to deliver and share the specific information. Information stored in various domains can be used as safety education content, but due to the unstructured form of the content and the problem of being distributed in various domains, it takes a lot of time to conduct appropriate education for each job type in the field. Therefore, in this study, a structural model for safety education contents tailored to each job category was proposed by structuring information using tools that can facilitate the management and utilization of unstructured data. The design process of the model is largely divided into three parts: description of the elements that make up the model, creation of a schema to reflect the class and characteristics of the model, extraction of Metadata for each domain to create instances in the model, and mapping within the model. described. In order to suggest a method of using the model, a specific type of work and work was selected based on accident statistics, and an instance of the contents related to the work was created to suggest a method of using the model to search for and share information. Then, the reasoning process for information retrieval in the model was analyzed, and the verification of the previously designed semantic relationship and the efficient retrieval of information were confirmed. By setting for a specific work situation and searching for safety education contents necessary for the situation, it was confirmed that appropriate contents were derived through an analysis of the reasoning process. The designed model reflects the characteristics of specific safety education content in the form of keywords, and by defining the relationship between keywords, infers data suitable for work by job category, and efficiently retrieves and shares structured data through the process of efficient information search and sharing. It has the advantage of being manageable. Using the proposed model, it will be possible to structure unstructured data distributed in various domains and to share structured information through an integrated classification system. It can be expected to contribute to autonomous safety activities and increase the effectiveness of education.

EDI貿易의 活性化 方案에 관한 硏究

조준현 成均館大學校 大學院 2000 국내석사