• Fire Science and Engineering
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• v.18 no.1
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• pp.37-41
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• 2004

The purpose of this study is to help the education of fire safety in elementary schools be given effectively by teachers through the investigation of their recognition on fire safety. To achieve the purpose, 203 elementary school teachers in Yeongju city were interviewed for 5 days from Sep. 5 to 9, 2003. The results of this study are as follows; Teachers recognized the education of fire safety to be very necessary, but they gave less consequence to it relatively and classes for fire safety were done quite a little in actual education. Teachers put the traffic safety on the top in the list of safety education and play safety, facility safety and fire safety follows it in order. Teachers stated lack of interest (36.0%), lack of material and class hours(31.5%) for the difficulty of the fire safety education and they recognized that a fire safety expert's lecture(62.1 ％) and development and propagation of teaching material were required for the efficient fire safety education.

• Nuclear Engineering and Technology
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• v.50 no.5
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• pp.709-716
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• 2018

A criticality safety analysis was performed for the APR-1400 spent fuel pool region-II to ensure the safe storage of spent fuel, with credit taken for depletion and in-rack neutron absorbers (Metamic panels). PLUS7 fuel assembly was modeled using TRITON-NEWT of SCALE-6.1. The burnup-dependent cross-section library was generated under limiting core-operating conditions with 5%-w U-235 initial enrichment. MCNP5 was used to evaluate the neutron multiplication factor in an infinite array of rack cells with the axially nonuniformly burnt PLUS7 assemblies under normal, abnormal, and accident conditions; including all biases and uncertainties. The main purpose of this study is to investigate reactivity variations due to the critical depletion and reactor operation parameters. The approach, assumptions, and modeling methods were verified by analyzing the contents of the most important fissile and the associated reactivity effects. The Nuclear Regulatory Commission (NRC) guidance on k-eff being less than 1.0 for spent fuel pools filled with unborated water was the main criterion used in this study. It was found that assemblies with 49.0 GWd/MTU and 5.0 w/o U-235 initial enrichment loaded in Region-II satisfy this criterion. Moreover, it was found that the end effect resulted in a positive bias, thus ensuring its consideration.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2021.05a
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• pp.301-302
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• 2021

Recently, there has been a large social issue about the environmental sector for safe zones from crime. Since 2010, starting with Seoul, most local governments have enacted ordinances related to crime prevention environmental design (hereinafter referred to as CPTED) and are showing active movement. In this study, as part of a method to understand how to use the design elements applied to CPTED, the safety village creation project of deteriorated construction districts in Daegu Metropolitan City was conducted, focusing on the 10 project destinations using CPTED, and the CPTED application elements were evaluated by CPTED. The analysis was conducted according to the basic principles, and the elements related to the architectural plan of the environmental design elements were reviewed. In order to extract the environmental design elements of the project site, the CPTED guideline appropriate for the sector was used based on the standard guidelines for environmental design for crime prevention in Daegu City and the contents of the crime prevention urban design ordinance.

• Journal of the Korea Safety Management & Science
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• v.12 no.3
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• pp.315-320
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• 2010

Recently, there are environmental issues for sustainable transportation system to pursue the energy-efficient and environment-friendly public urban transit. These transportation system needs to offer demand-oriented high-quality service being on the same level with cab service for urban space. PRT(Personal Rapid Transit), small track-guided vehicle, is repeatedly mentioned as a possible alternative for the new urban public transportion system, but but there are not many researches on the operational optimal routing for PRT network. In this paper, the concept of PRT and general optimal routing methods are reviewed. And we suggest the optimal routing method for city-wide PRT network with multi-vehicles and stations, junctions and directional arcs. Futher research directions for PRT routing are presented.

• Journal of the Society of Disaster Information
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• v.13 no.4
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• pp.465-475
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• 2017

As a result of a survey on households using gas, gas safety accidents have been declining linearly in 2006. However, when analyzing the causes of gas accidents, accidents detail caused by carelessness have increased to 62%It is analyzed that urgent measures are needed. In addition, 7 households per 10 households perceive city gas as safe, but 30% of them recognize that gas safety accidents are likely to occur in their homes in the future. Even though city gas use is relatively safe,It is recognized that there is a risk. Although the perception of the gas safety of the city gas consumers is not related to the age and gender income level, it is analyzed that it is highly educated and experienced direct or indirect gas safety accident, the perception of safety was relatively low. In order to reduce gas safety accidents, the installation of gas safety equipment for elderly households should be continuously supplied. As a result of investigating the disposal costs in case of various disasters, 66% of the insurance costs were found to be highly dependent on insurance. In addition, to reduce gas safety accidents, the installation of gas safety devices for elderly households should be continuously implemented.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.1
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• pp.57-67
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• 2020

Recently, smart cities are attracting attention as a solution for a plethora of urban problems, including transportation, environment, safety, and energy. However, despite a substantial body of research dealt with the concept, trends, policy, and legal institutions of smart cities, few researchers have examined how the smart city services influence the cities from the dynamic perspective that considers the entire cycle of a city, including its growth, stagnation, and decline. Thus, it is vital to understand how the city changes with time from the view that a city is a system of sub-elements-population, industry, transportation, environment, housing, and land-closely interacting together. Within this context, this study explores how the urban dynamics of Anyang-city develop for the long term using the System Dynamics method and analyzes the effect of smart city project investment on the dynamics of Anyang-city. According to the result, Anyang-city is a "mature and stable" type, and its population is expected to decrease slowly by 2040. Specifically, the Anyang-city population will be reduced to 553,000 by 2030. It was analyzed that the number will decrease to 543,000 by 2040. It was also found that the investment in smart city projects in Anyang, based on the Plan for Anyang Smart City, would have the following effects: easing population decline, increasing number of businesses, improving urban safety index, and increasing average driving speed. The population will grow by 4,000 and the number of businesses will increase by 761 than before budget investment. The result of this paper is expected to contribute to identifying and predicting the effect of smart city policies from a long-term perspective.

• Journal of Environmental Science International
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• v.23 no.6
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• pp.1111-1120
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• 2014

Ulsan made its contributions to modern Korea as an industrial city. In the 1960s, Ulsan was appointed as a special industrial zone. After that, industrial complexes were built without environmental considerations so Ulsan was once called "the polluted city". However, in the early 2000s, the main concern of Ulsan's policies was gradually shifted from the economic growth to the environmental issues. In order to enhance the environmental quality and to make the Ulsan more environmentally friendly eco-city where human and nature coexist, Ulsan city declared "The Eco-polis Ulsan" in 2004 based on "The Master Plan for Eco-polis Ulsan" which included the eco-industrial park as an action plan. This study aims at defining the concepts of eco-city and policies to build Ulsan-style eco-city as environmentally friendly city and proposing Ulsan as a role model to cities and towns of developing countries. In addition, Ulsan's EIP project which will be implemented for 15 years from 2005, is elaborated including regulatory issues and technologies to be applied.

• Journal of the Korea Safety Management & Science
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• v.21 no.3
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• pp.17-21
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• 2019

With the development of public transportation, the use of subways as a means of transportation in the city center is increasing, so that vibrations and structural noises are emerging as a new environmental issues. This study can be used as a basis for research on subway safety and shock mitigation by applying vibration-proof mat.

• Journal of Korea Ship Safrty Technology Authority
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• s.22
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• pp.54-64
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• 2007

This study is about the size and the number of toilets in the passenger ships. National regulations and other countries regulations were searched and analyzed. The toilets in the passenger ship, that are engaged in Busan City, Inchen City and Mokpo City were also searched and these present situation of the toilets were used with basic data of this study. Finally, we give a suggestion on the size and the number of toilets in the passenger ship.

• Proceedings of the Korean Geotechical Society Conference
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• 2001.03a
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• pp.265-272
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• 2001

Excavation in a big city is different from excavation in a local area because construction methods and stability are directly connected in a loss of life. Especially, estimate of rock mass slope stability is excuted by more detail and safty work. In this study, we are made reserches in rock mass slope stability and safety method that the slope is closed by elementary school in a big city. The result of many field study and numerical analysis is shown up direct reinforcement used to anchor.