• 대한건축학회논문집:계획계
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• 제35권3호
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• pp.67-77
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• 2019

The purpose of this study is to introduce a town management system that utilizes private sectors and public space resources in urban management area. In this study, we are studying 7 town management districts in Japan which have been establishing diverse management systems that are propelled by the private sectors and private fund. We analyzed qualitative characteristics of 7 town management districts by surveying the operating status of organization, financial management and activities. Through the analysis, we clarified their characteristics that are related to establishing background. Also, we suggested conclusions of the study as follows: First of all, it is important to develop a town management method that takes into account the characteristics of the target district in order to overcome the limitation of applying uniform method and increase sustainability and efficiency of privately-led urban management. Second, marketing and promotion are critical strategies in town management since they are satisfying both private and public benefits. The high rate of reinvestment in marketing and promotions shows efforts to maintain the asset value of the private sector and continue to revitalize the city. Finally, in order to carry out urban management with private initiative, it is necessary to establish a working organization capable of realizing the operational direction of the steering committee to secure the executive power.

• 기록학연구
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• 제39호
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• pp.45-72
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• 2014

최근 몇 년 사이에는 정보공개청구뿐만 아니라 청구 이전의 적극적 공유를 강화하는 정부2.0이 정부운영방식의 새로운 패러다임으로 자리잡고 있다. 우리나라도 이에 발맞춰 정부3.0 정책을 추진하면서 정보공개와 공유가 더욱 강화 확산되고 있는 추세다. 이에 본 연구에서는 정부3.0 시대의 원활한 공공정보 활용을 위해 역할과 책임이 더욱 확대되고 있는 정보공개시스템을 살피고, 시스템을 통해 공개되는 공개정보의 이용가능성을 이용자 중심의 시각에서 분석하고자 한다. 정보공개시스템은 공공데이터를 포함한 모든 공적 정보의 개방과 활용에 있어 가장 기초가 되는 창구다. 더구나, 박근혜정부가 내세우고 있는 정부3.0 추진 과제의 주요 내용인 정보공개 강화, 결재문서 즉시 공개, 공공정보 접근 확대 등은 정보공개시스템을 통해 이루어져야 하는 것들이다. 정보공개에 대한 확대되는 요구에 정보공개시스템의 중요성은 날로 무거워지고 있다. 기존의 단순한 정보공개청구의 온라인 창구 역할을 넘어 원문정보 공유의 장으로, 나아가 정부3.0의 실질적 구현 공간으로의 비전을 담아내고 있다. 하지만 현재 정보공개시스템은 미래적 발전 전망은커녕 2006년 출범과 함께 제기되었던 문제들을 여전히 해결하고 있지 못하고 있는 형편이다. 이에 본 연구는 시스템 유지 및 보수와 이용자 편의성이라는 측면에서 정보공개시스템의 문제점을 분석하였다.

• 대한인간공학회지
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• 제32권1호
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• pp.17-26
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• 2013

Objective: The aim of this study is ergonomic analysis of tele-operation tasks using modified remote handling devices dedicated to the cell of PRIDE(PyRoprocess Integrated inactive DEmonstration facility) in KAERI(Korea Atomic Energy Research Institute). Background: Tele-operation manipulators of the PRIDE are applied to perform the remote handling and management of pyroprocessing facilities. Generally, these kinds of systems are composed of master-slave system and its peripherals installed along a wall or ceiling of the cell, and the manipulators transmit the user's own motion to grippers directly. However, a user convenience and intuitiveness while operating the manipulators have not been fully considered in research fields. Method: This study tries to analyze the ergonomic performance of remote handling manipulators in the developed cell facility. It was included that the analysis of operator's capability for his/her own motion range of upper arm while manipulating the MSM, considerations of its manipulation margin and related tool modifications to improve the remote handling performance. Conclusion: The test results of several remote handling tasks performed in PRIDE are represented, and adequate operation strategies for the tele-operation system of hot-cell type facilities are proposed. Application: The knowledge represented in this study can be utilized to improve a tele-operation system operated in a large-scale hot-cell system.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.556-562
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• 2011

Railroad started from invention of stream locomotive at the beginning of the industrial revolution. Development of diesel and electric locomotives in railroad induced science and technology since the industrial revolution. Korean high-speed train so-called high-speed train project, is localized 86.7%(compared to price), 92%(compared to number of parts). This technology has been contributed to KTX since 2004. High-speed railway was developed to integrated system, which is contained high technology such as civil, mechanical and electrical technology. This effects to advanced technology across the board science, technology, industry. High-speed railway is fast, safe, comfortable, eco-friendly as next generation's representative transportation. Furthermore it is inaugurate the era of the new railroad. Korea is opened the high-speed railway following Japan, France, Germany, Spain. Korea became the fifth nation of the high-speed railway. It joins the rank of developed countries operating at the speed of 300km/h. Especially, KTX is emerging as advanced transportation with reducing logistics costs significantly due to time advantage and transportation revolution. The purpose of this study is to present the strategy through internal and external railway market's analysis for Korea railway system's globalization expansion(overseas expansion).

• 대한안전경영과학회지
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• 제17권1호
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• pp.45-52
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• 2015

The purpose of this investigation is to enhance the survival rate of patients by transporting them to the hospital within the golden hour through the operational improvement of emergency dispatch instruction. To this end, problems and improvements of current operating system were derived by carrying out a survey against paramedics of Incheon city in 2012 and analyzing the current emergency dispatch instruction. This study analyzed the emergency activity daily reports for one year from January 1 through December 31, 2012 and researched the consciousness of 119 emergency medical technician. According to the analysis of the survey, there were no meaningful differences in the on-site arrival times per triage. Therefore, the item of 'Emergency Classification' specified in the emergency dispatch instruction needs to be integrated in the scheme of "triage". Also, the feedbacks of the emergency action log and the emergency dispatch instruction are necessary for 'duty for operation' to review the adequacy to the severity after the end of emergency operation. Finally, the improvement of the system for the continuous communication between the paramedics and the command staff is necessary. This improvements as stated above are expected to contribute to raise survival rate of patients.

• International Journal of CAD/CAM
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• 제9권1호
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• pp.1-16
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• 2010

When Deterministic Design Optimization (DDO) methods are used, deterministic optimum designs are frequently pushed to the design constraint boundary, leaving little or no room for tolerances (or uncertainties) in design, manufacture, and operating processes. In the Reliability-Based Design Optimization (RBDO) model for robust system design, the mean values of uncertain system variables are usually used as design variables, and the cost is optimized subject to prescribed probabilistic constraints as defined by a nonlinear mathematical programming problem. Therefore, a RBDO solution that reduces the structural weight in uncritical regions does not only provide an improved design but also a higher level of confidence in the design. In this work, we seek to improve the quality of RBDO processes using efficient optimization techniques with object of improving the resulting objective function and satisfying the required constraints. Our recent RBDO developments show its efficiency and applicability in this context. So we present some recent structural engineering applications demonstrate the efficiency of these developed RBDO methods.

• 디지털융복합연구
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• 제9권4호
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• pp.213-222
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• 2011

본 논문은 한국 기업의 스마트워크 도입 전략을 제시하고자 하였다. 최근 한국에서는 스마트워크에 대한 관심이 고조되고 있으며 민간기업의 도입이 활발하게 추진되고 있으나 스마트워크 전략이 부재하여 여러 문제점이 부각되어 왔다. 본 논문에서는 그 중에서도 도입을 위한 전략체계와 관련하여 관련 연구 성과에 대해 문헌연구하여 가이드라인이 될 만한 전략체계를 소개하였다. 그리고 그 기본방향에 따른 실제적인 도입 절차에 대하여 방송통신위원회가 제시한 스마트워크 도입운영 가이드북을 검토하고 스마트워크 2.0시대에 맞는 스마트워크 도입절차를 제시하였다.

• International Journal of Fluid Machinery and Systems
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• 제3권4호
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• pp.352-359
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• 2010

In recent years, the market has shown increasing interest in pump-turbines. The prompt availability of pumped storage plants and the benefits to the power system achieved by peak lopping, providing reserve capacity, and rapid response in frequency control are providing a growing advantage. In this context, there is a need to develop pumpturbines that can reliably withstand dynamic operation modes, fast changes of discharge rate by adjusting the variable diffuser vanes, as well as fast changes from pumping to turbine operation. In the first part of the present study, various flow patterns linked to operation of a pump-turbine system are discussed. In this context, pump and turbine modes are presented separately and different load cases are shown in each operating mode. In order to create modern, competitive pump-turbine designs, this study further explains what design challenges should be considered in defining the geometry of a pump-turbine impeller. The second part of the paper describes an innovative, staggered approach to impeller development, applied to a low head pump-turbine project. The first level of the process consists of optimization strategies based on evolutionary algorithms together with 3D in-viscid flow analysis. In the next stage, the hydraulic behavior of both pump mode and turbine mode is evaluated by solving the full 3D Navier-Stokes equations in combination with a robust turbulence model. Finally, the progress in hydraulic design is demonstrated by model test results that show a significant improvement in hydraulic performance compared to an existing reference design.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2009년도 공동학술대회
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• pp.167-168
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• 2009

컨테이너를 통한 무역이 나날이 늘어감에 따라 컨테이너터미널에서는 생산성을 향상시키기 위한 많은 노력을 하고 있다. 생산성을 향상시키기 위한 방법으로는 효율적인 운영전략, 또는 생산성이 낮은 장비 도입을 통한 방법이 있을 수 있다. 장비 도입의 측면에서 최근 국내 터미널에서 최근 많이 도입하고 있는 탠덤 크레인은 20'컨테이너를 동시에 4개, 40'컨테이너를 동시에 2개를 작업할 수 있는 안벽하역장비로 기존 크레인에 비하여 생산성을 향상시킬 수 있다. 본 논문에서는 이러한 탠덤 크레인의 효율성을 높일 수 있는 선적 계획을 위한 계량적 모형과 해법을 제시하고자 한다.

• 무역학회지
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• 제47권5호
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• pp.181-200
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• 2022

After the COVID-19 pandemic, a global economic downturn and a recession in the shipping market are expected, it is important for domestic shipping companies to establish appropriate strategy in response to the recession. Accordingly, domestic shipping companies should grow into integrated logistics companies that combine shipping and logistics in the future. And for this purpose, it is necessary to actively promote logistics integration with external shipping and logistics companies. This paper presents the direction of logistics integration for domestic shipping companies to develop as integrated logistics operators with competitiveness in the global shipping market, and presents detailed alternatives. Domestic shipping companies lack the infrastructure such as ships, port terminals, and warehouses, so they have a weak capacity to independently promote logistics integration. At the shipping company level, a logistics integration promotion strategy should be established, and accordingly, logistics infrastructure, service network, and logistics integration operating system should be established. The government should provide tax benefits for logistics integration, financial support for M&As led by domestic shipping companies, a standardized information sharing system, and preparation of educational courses for nurturing digital manpower.