• 대한교통학회지
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• 제17권3호
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• pp.117-130
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• 1999

지진은 교량과 도로 구조물들에 피해를 입혀서 교통시스템 운행전반과 지역경제에 심각한 피해를 초래하도록 한다. 지진위험도 분석방법은 안전도에 문제가 있는 고속도로 교량들에 대하여 구조물 보강공사를 실시하기 위한 우선순위 결정에 사용되어 진다. 지진위험도 분석방법들은 한 교량의 상대적 중요도를 결정하기 위하여 일일 평균교통량을 사용하고 있다. 본 연구는 도로붕괴시 교통시스템에 추가로 부과되는 시스템비용의 관점에서 수많은 교통량분석을 실행하는데 비용-효과적인 교통망 분석방법을 개발하는데 있다. 본 연구에서 개발된 교통망 분석방법의 핵심은 인공지능분야에서 개발된 연상기억모형의 사용이다. 본 연구에서 개발된 교통망 분석방법을 평가하기 위하여 7개의 교통죤으로 구성된 교통망이 구축되었다. 다양한 교통링크 붕괴 시나리오들이 지진으로 붕괴된 교통망에서의 교통량들을 추정하기 위하여 무작위로 선정되었다. 이러한 교통링크 붕괴 시나리오에 대한 교통량의 변화는 여러 연상기억모형들을 이용하여 예측하였고, 그 예측능력을 평가하였다. 다양한 시나리오로부터의 예측결과는 교통량 예측분야에서 연상기억 모형들의 적용 가능성을 보여주고 있다.

• 한국지진공학회논문집
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• 제12권6호
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• pp.47-53
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• 2008

본 논문은 캘리포니아지역에 위치한 고속도로망을 대상으로 하여, 도로망내에 있는 교량의 내진보강 우선순위를 결정하는 방법에 관한 연구이다. 내진보강 우선순위 결정은 지진공학 분야에서 매우 중요한 이슈 중의 하나이며, 정부나 도로 관리청의 의사결정권자는 예산 배정 과정에서 이와 같은 문제에 항상 직면하게 된다. 본 연구는 특정지역의 고속도로망을 대상으로 어떻게 내진보강 우선순위를 결정할 것인가에 관한 방법론을 보여주고 있다. 우선순위 결정을 위하여 구조물의 지진 취약도, 도로망상에 위치한 각각 연결로의 중요도에 대한 개념이 먼저 소개되었다. 도로망상 각각의 교차로를 잇는 연결로를 지진 보강의 대상 단위로 하여 도로망의 내진 성능에 대한 시뮬레이션을 수행하였으며, 추가 소요되는 교통 지체시간을 각각의 시뮬레이션 경우에 대하여 측정함으로써 내진보강에 의한 효과를 평가하였다. 또한, 지진 위험도의 확률적인 특성을 반영하기 위하여 확률론적 시나리오 지진을 도입하였다. 본 연구의 결과에서 알 수 있듯이 우선순위의 의미는 이해관계자의 주요 관심 사항에 따라 다르게 정의될 수 있고, 각각 다른 우선순위 결과를 보여주게 된다. 본 연구는 교통망의 효과적인 내진보강을 위한 우선순위 결정 과정에 도움이 될 수 있는 일반적인 지침을 제공할 것으로 기대된다.

• Journal of Veterinary Science
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• 제25권4호
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• pp.49.1-49.15
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• 2024

Importance: Endochondral ossification plays an important role in skeletal development. Recent studies have suggested a link between increased intracellular reactive oxygen species (ROS) and skeletal disorders. Moreover, previous studies have revealed that increasing the levels of myeloperoxidase (MPO) and osteopontin (OPN) while inhibiting NADPH oxidase 4 (NOX4) can enhance bone growth. This investigation provides further evidence by showing a direct link between NOX4 and MPO, OPN in bone function. Objective: This study investigates NOX4, an enzyme producing hydrogen peroxide, in endochondral ossification and bone remodeling. NOX4's role in osteoblast formation and osteogenic signaling pathways is explored. Methods: Using NOX4-deficient (NOX4^-/-) and ovariectomized (OVX) mice, we identify NOX4's potential mediators in bone maturation. Results: NOX4^-/- mice displayed significant differences in bone mass and structure. Compared to the normal Control and OVX groups. Hematoxylin and eosin staining showed NOX4^-/- mice had the highest trabecular bone volume, while OVX had the lowest. Proteomic analysis revealed significantly elevated MPO and OPN levels in bone marrow-derived cells in NOX4^-/- mice. Immunohistochemistry confirmed increased MPO, OPN, and collagen II (COLII) near the epiphyseal plate. Collagen and chondrogenesis analysis supported enhanced bone development in NOX4^-/- mice. Conclusions and Relevance: Our results emphasize NOX4's significance in bone morphology, mesenchymal stem cell proteomics, immunohistochemistry, collagen levels, and chondrogenesis. NOX4 deficiency enhances bone development and endochondral ossification, potentially through increased MPO, OPN, and COLII expression. These findings suggest therapeutic implications for skeletal disorders.

• 한국시뮬레이션학회논문지
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• 제21권1호
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• pp.81-88
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• 2012

M&S 도구로서의 Battle Lab은 무기체계 획득 주기상 소요결정부터 연구개발 및 시험평가/훈련에 이르기까지 다양하게 활용 가능하다. 국내에서는 Battle Lab 구축의 중요성에도 불구하고 아직까지 초보적인 Battle Lab을 구축하고 있다. 전장 환경을모의함에 있어서 특히 Live, Virtual, Constructive 모델이 연동되는 M&S 도구의 활용도는 무기체계 개발을 위한 SE(체계공학)프로세스 전 과정에 걸쳐 적용 될 경우 시간적, 공간적 제약을 해소하고 기술적 구현이 가능하다는 점에서 반드시 필요하다. 본 연구에서는 전장 환경 모의시 모의 체계간 상호운용성을 보장하는 환경을 제공할 수 있도록 하여 그 활용도를 극대화한다.L-V 연동은 Virtual 모의기에서의 전술데이터링크 활용으로 Live 연동이 가능하도록 하는 방안과 V-C간 연동은 Virtual/Constructive 모의기에 M&S의 표준 도구인 RTI 활용 방법을 제안한다. 그리고 제안한 방법을 방공 Battle Lab으로 구축한 사례를 보인다. 방공 Battle Lab은 표적이 접근하는 경우 교전 무기체계에서 상부체계 명령을 통해 교전 모의를 수행할 수 있는 시스템으로 Constructive인 표적과 유도탄, 레이더, 발사대 모의기와 Virtual인 중앙방공통제소, 대대, 사격통제소 모의기간에 RTI RPR-FOM 1.0 연동하고, 또한 Virtual 모의기간 전술데이터링크 Link-11B, ATDL-1을 연동하여 Live 체계간의 상호운용성을 보장할 수 있음을 보인다.

• 한국학교ㆍ지역보건교육학회지
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• 제2권2호
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• pp.23-38
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• 2001

The purpose of this study was to suggest a stratege of promoting school health. This study examined the historical aspacts of school health and conducted a mail questionnaire survey for 24 school health specialists who work in school and educational administration from November 1 to November 30, 2000 and the reply rate was 79.2%(19 persons). The results were as follows. The most important fields in schools were answered health related field. The most important field of school health were health education(89.5%), the supervisor of school health project should be office of school health ward in Educational administration(42.1%), and problems in conducting health project in school were lack of policy(63.5%), awareness of the importance of school health(63.2%), and budget(63.2%). They answered that the cause of food poisoning in school were negligence of sanitation of cook(42.1%) and prevention methods were thorough inspection of food stuffs(31.6%). 72.2% replied that school health project were not being operated in a proper way. They answered that tasks of promoting school health were development of school health policy, increase of man-power for school health, expansion of school health budget, systematic health education, and development of independent health subject program, connection with local society. 94.7% of those replied answered that school health organization is necessary. Common sense on health and sex education are needs to be handled most importantly in health education. 63.2% of those replied answered that appropriate time of education for health service is more than once a week. The person appropriate for health education were school nurse(63.2%). In conclusion to improve the problems of school health and to activate it, development and support of policy of health project and preparation of various conditions that can establish health courses independently is, above all, immediately required. Many efforts need to be made to make the president of schools and education authorities recognize the importance of health in schools. These efforts need to link to the transformation of awareness, and process of development of concrete method of practicing various school health education and school health is necessary.

• 가족자원경영과 정책
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• 제18권1호
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• pp.1-28
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• 2014

The purpose of this study is to suggest how the first birthday rite, a practice in Korean culture, has changed over the time. A survey of 250 mothers was undertaken from October 11th to November 6th, 2012. The research questions asked in this study are as follows. What general and expert views are held about the first birthday rite? What type of awareness and knowledge do mothers have about the first birthday rite? Is there any correlation between mothers' awareness and knowledge about first birthday rite? What is the importance of the components of the baby's first birthday rite and the importance of choosing first birthday rite goods? The data were analyzed using SPSS 17.0. Frequency, F-test, correlation were also employed. The results of this study are as follows: The first birthday rite shows a clear link to socializing. It is a family event, but is also seen as an opportunity to enhance relationships with relatives, colleagues, and friends. A banquet hall is chosen as preferred first birthday rite location, and participants are served a meal and receive gifts. The banquet information on first birthday rites was initially collected from the internet, blog cafes, and an experienced. However, it has become gradually more common to hire a consultant to organize the first birthday rite. Awareness of the first birthday rite is high, but knowledge is relatively low. In addition, there is a positive relationship between awareness and knowledge about the first birthday rite. When mothers are preparing for their baby's first birthday, they consider food for the guests' banquet, space and time. Finally, individual positive relationships were found between choosing first birthday rite goods and employee services, contract pricing for goods, and food for guests.

• 통상정보연구
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• 제9권2호
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• pp.257-283
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• 2007

As Global industrial structure is diversified, multinational corporations accomplished fast internationalization to introduction of new management policy by development of an IT technology. Enterprise' business environment is changing transcending border. To overcome raging waves of change accident and to be secured enterprise's future, the logistics is recognized the third profit source joining in curtailment of sale enlargement, production cost. To seek cost saving or reform in logistics class that is last area of pursuit of profits within ancient city life in the fast lane from these viewpoint, importance of study that integrates and manages international logistics bases supply neck walk is emphasized. Specially, to meet on in terms of competitive power security regarding curtailment of logistics cost is available through link between logistics bases, various consumer's request, merchandise and service logistics management that supply fixed quantity as is reliable in right place at good season was embossed by point game plan of business management, and SCM efficiency anger of mortification international logistics activity importance of study that see at that dominate competitive advantage point bring. This study analyzes interrelation and presents model for integration of international logistics bases supply network with supply network habit at factor and supply chain, and supply network activity in integration of supply chain process and production. Also, it establishes following method of study to achieve study purpose for actual proof analysis for integration sequence of international logistics bases supply network. Specially, immersion of network and supply network, very high interrelation appeared by thing which is with international logistics base supply network integration. The integration of international logistics base supply network means that the enterprises which give trust and sincerity deal with market environment change positively and can decide proceeding of various cooperative work. Also, it means the possibility by necessity of cooperative relation and interdependence to continuous immersion and normative immersion, for the maintain of long business relations.

• 한국환경생태학회지
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• 제25권3호
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• pp.412-420
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• 2011

본 연구는 1975년부터 2006년까지 서울시 녹지 연결망의 시계열 변화를 그래프 이론을 적용하여 공간의 다중규모(multi-scale)에서 정량적으로 분석하였다. 분석대상 시기 동안, 서울시 녹지 연결망의 변화가 크게 나타난 공간 규모는 녹지 간 1,000 ~ 1,600 m 거리였다. 1990년 이후 난개발로 단편화되고 훼손되었던 녹지들과 연결망이 점차 복원되고 있음을 확인할 수 있었다. 2006년 개별 녹지의 연결망 분석을 통해, 핵심 녹지와 징검다리 녹지의 두 가지 유형의 녹지 연결망 분포를 확인하였다. 서울시 녹지 분포는 연결성 중요도 지수와 상관관계가 높아서, 남쪽과 북쪽의 가장자리에 핵심 녹지가 분포하고 동쪽, 서쪽, 중앙에 매개 중심성이 높은 징검다리 녹지가 분포함을 정량적으로 표현할 수 있었다. 따라서 서울시 녹지 연결망은 그래프 이론을 적용하여 연결 중심성, 매개 중심성, 연결 중요도 지수 등으로 정량적으로 표현될 수 있다.

• 산업경영시스템학회지
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• 제44권3호
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• pp.207-213
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• 2021

Recently, the number and scale of projects being carried out within the enterprise are increasing. Accordingly, many companies are competitively introducing a Project Management Office (PMO) to efficiently manage these projects, allocate resources, and effectively link the projects and corporate strategies. However, the project manager who directly manages the project wants to receive support from the PMO in many areas for successful project management, but the project manager does not like to be interfered with by the PMO. On the other hand, the PMO may not be able to satisfy all the requirements of each PM as PMO oversees the entire project with limited resources. In addition, since the PMO must monitor and control the project and support the project according to the priorities of each project, conflicts with each PM can be formed. Therefore, in this study, based on the case of a company, the difference between the perceptions of PMs and PMOs about the importance of the required roles of PMOs is to be examined. As a result of the study, it was confirmed that the core functions and sub-functions of PMO, which PMO members and PMs consider important, are different. It was identified that the PMs valued the PMO function that would be helpful for their successful project execution. On the other hand, PMO members revealed that they had a relatively high priority for the roles to monitor and control project performance for which they were directly responsible.

• 무역학회지
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• 제46권6호
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• pp.93-107
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• 2021

The bill of lading serves to link imports and exports. It is the last document issued in the export process and is the most important document before import and export as it is the first document required for importers to take over goods. Transfer the right to the goods to be transported to another person through endorsement. The role and importance of the bill of lading has already been suggested in many previous studies and the trading partners are fully aware of it. In addition, all countries and international organizations recognized the importance and enacted various laws and systems in relation to possible legal problems and they have become customary in practice. However, trade fraud that exploits the characteristics of the bill of lading may occur. In order to solve this problem, various attempts related to the electronic rights transfer of the bill of lading began to be carried out, and many institutions and companies are still trying to develop a new system. As a result of these efforts, electronic bills of lading, such as bolero, appeared, and electronic bills of lading, which can transfer rights in an electronic way, appeared. Therefore, this study intends to present the feasibility of the introduction of smart bills of lading after examining the current status of electronic bills of lading and the introduction of block chain technology-based bills of lading.