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Ship Safety Policy Recommendations for Korea: Application of System Dynamics
전준우,여기태,왕영 한국해운물류학회 2016 The Asian journal of shipping and Logistics Vol.32 No.2
This study aimed to demonstrate and quantify the factors that influence ship safety and ship accidents and suggest policy recommendations for both government and the marine industry in Korea based on the application of system dynamics (SD). Korea was selected as the target country because a number of recent ship accidents have focused attention on ship safety in the region. Three factors that can influence ship safety were considered: economic factors, ship-handling and management factors, and government budget allocation of ship industry. SD was then applied to model the factors involved in ship accidents. Data on ship accidents in Korea from 2009–2014 were included in the model simulation. To measure the simulation accuracy, mean absolute percentage error (MAPE) analysis was employed. Following the simulation, a sensitivity analysis was conducted to determine the relationships among the factors involved in ship accidents. Finally, a simulation incorporating ship accident data and government budget allocated to the ship industry was performed. The results of this study can be used in government policy recommendations on ship safety to prevent and reduce ship accidents.
Fabrication of Chromatic Electronic Textiles Synthesized by Conducting Polymer
전준우,한송이,김병훈 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.74 No.2
Most of the electronic textiles (e-textiles) were fabricated by carbon-based materials such as graphene, carbon nanotube (CNT), and hybrids of graphene and CNTs due to their high electrical conductivity, exibility, and good stability. However, it is dicult to synthesize a colored e-textiles because the carbon-based e-textiles have only a black color. In this study, we produced the chromatic e-textiles synthesized with dierent conductive polymer such as polyaniline, polythiophene, and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate). The chromatic e-textiles were simply fabricated by soaking commercial cotton into an aqueous conductive polymer solution. The chromatic e-textiles were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The electrical conductivity of the chromatic e-textiles was the order of 103 S/cm, which was maintained even under bending.
全準雨 대구효성가톨릭대학교 1982 연구논문집 Vol.25 No.1
This article deals with the techniques and processes of space organization by pattern Language which is the system of patterns to form a language. A Pattern language is a system which allows its users to create an infinite variety of those three dimensional combinations of patterns which we call buildings, gardens, towns. It defines the linited number of arrangements of spaces that make sense in any given culture. And it actually gives us the power to generate these coherent arrangements of space. A pattern language has the structure of a network. When we use the network of a language, we always use it as a sequence, going through the patterns, moving always from the larger patterns to the smaller, always from the ones which create structrues, to the ones which then embellish those structures. Each pattern as any general planning principle is an operator which defferentiaties space. The language is a sequence of these operators. The language is a good one, capable of making something whole, when it is morphologially and functionally complete. When a pattern language is properly used, it allows the person who uses it to make places which are a part of nature.
전준우 한국도시재생학회 2015 도시재생 Vol.1 No.1
The purpose of this study is to suggest 'Long-term Land Leasing Business Model of State-Owned Lands' for efficient State Land use. The results of application condition analysis show that inefficient land use and deterioration of Administrative Property. Feasibility study of low use Tax Office to introduce 'Long-term Land Leasing System' shows that the more business period, the more business value improvement. Under the present land use condition, B/C becomes plus in 38 years. Whereas in case of upzoning B/C becomes plus also 30-year business period. To attract private capital it is necessary to provide incentive such as upzoning and reduction of land leasing fee. Above all, it is necessary to make direct private participation environment through relaxation of Administrative Property use regulations.