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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of The Korean Society of Disaster Information
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Journal DOI :
The Korean Society of Disaster Information
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Volume & Issues
Volume 11, Issue 4 - Dec 2015
Volume 11, Issue 3 - Sep 2015
Volume 11, Issue 2 - Jun 2015
Volume 11, Issue 1 - Mar 2015
Selecting the target year
Demands of R&D for Preventing Disaster & Safety Accidents
Yoon, Jonghyun ; Lee, Yongbae ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 467~474
DOI : 10.15683/kosdi.2015.11.4.467
This study is about the demand survey of R&D for preventing disaster and safety accidents. The results are as follows. First, the priorities of technology development is shown in the following order: natural disasters, human and social disaster, and safety accidents. Second, the amount of R&D investment is shown in the following order in respect of disaster management phase: prevention, preparedness, response and recovery. However, investment in the recovery phase was low. Third, it was concentrated on some types the demands of technological development in the public sector. There is a possibility of duplication of technology development in government investment. Suggest that interagency cooperation is required.
Effects of the Recognition of Business Information Protection Activities in Ranks on Leaks of Industrial Secretes
Choi, Panam ; Han, Seungwhoon ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 475~486
DOI : 10.15683/kosdi.2015.11.4.475
The objective of this study is to analyze control factors in protecting activities of business information that affects the effects of protecting leaks of industrial secretes during business security works in the ranks of staffs. A regression analysis was implemented by 36 items of protecting activities of information and 10 items of preventing industrial secretes for a total of 354 users and managers who use internal information systems in governments, public organizations, and civilian enterprises. In the recognition of protecting activities of business information that affects the prevention of controlling industrial secretes, clerks showed recognitions in physical control, environmental control, and human resource control, and software control and assistant chiefs showed recognitions in hardware control and environmental control. Also, ranks of department managers and higher levels represented recognitions in security control activities. It showed that clerks, assistant chiefs, and above department managers show effects of technical control factors on protecting activities of industrial secretes but section chiefs represent system control factors in preventing industrial secretes.
An Study on the Measurement of Natural Period of Apartment for Seismic Design
Kim, Dongbaek ; Lee, Byeonghoon ; Lee, Kwangjae ; Lee, Induk ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 487~492
DOI : 10.15683/kosdi.2015.11.4.487
Recently, apartment designs are tend to be changed from the standard pattern by many causes and the beam-column structures are getting popular instead of wall structure system. Therefore, for the effective use of planed space the heights of apartment are tend to be higher and higher. According to Korea Building Code, earthquake resistance designs or seismic design for those high rise apartments must be more attentive and accurate, especially, dynamic periods of structures must be exactly measured, because those are very important for equivalent static analysis. The important subject of this study is to investigate the safety factors and seismic performance for natural period of high rise buildings by comparing the natural periods getting from ambient vibration method with those of Korea Building Code.
Variation Analysis of Storm Surges in Masan Bay due to Typhoon Landing-1. Extreme Simulation Typhoon Scenario
Han, Sungdae ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 493~505
DOI : 10.15683/kosdi.2015.11.4.493
Based on the typhoon paths landed on the southern coast of Korea, the distribution of typhoon moving directions follow the Beta probability density function and that of pressure drops in typhoon eyes follow the Rayleigh probability density function. Consequently, the extreme typhoon simulation scenarios for six landing positions are determined as most probable one in moving direction and extreme one of Typhoon Maemi level in pressure drop. The variation of storm surges in Masan bay associated with simulated typhoon landing position is analyzed through the numerical experiments in the next paper as the second part.
A Hierarchical Analysis on the Commuting Behaviors and Urban Spatial Characteristics
Seo, Jonggook ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 506~514
DOI : 10.15683/kosdi.2015.11.4.506
In this study, a new analytical techniques is proposed for seeking policy alternatives aimed at objectives of TDM, increasing the transit rideshare. Determinants of travel mode such as personal characteristics, lifestyle, and urban spatial characteristics are interdependent and have combined effect on decision. In addition, individuals, groups, and regional characteristics have interdependencies at different levels. Unlike traditional regression analysis, hierarchical analysis model has the advantage of identifying interdependencies and complex relationship between the combined impact factors. This analysis technique is expected to be a significant contribution to seek a more efficient TOD policy.
Comparison of Domestic Chemical Accident Investigation System
Kim, Sungbum ; Lim, Myunghee ; Choi, Sungwoon ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 515~519
DOI : 10.15683/kosdi.2015.11.4.515
87 and 104 cases of chemical accidents in 2013 and 2014 respectively have brought enormous damages to people and environment. Also, the industry has significant damages the company reputation and a lot of expense to repair the damage handling. Toxic substance has spread out rapidly in the atmosphere at chemical accidents and that affect to workers as well as neighborhood. In order to analyze the causes of chemical accidents throughly, reliable and systematic investigation procedure should be considered. In this study, the chemical accident investigation system of each government agency in charge of the accident investigation is compared and analysed.
A Study on the Mechanical Properties of Gas Pressure Welded Splices of Deformed Reinforcing Bar
Jeon, Juntai ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 520~526
DOI : 10.15683/kosdi.2015.11.4.520
Reinforcing bar splices are inevitable in reinforced concrete structure. In these days, there are three main types of splices used in reinforced concrete construction site - lapped splice, mechanical splice and welded splice. Low cost, practicality in construction site, less time consuming and high performance make gas pressure welding become a favorable splice method. However, reinforcing bar splice experiences thermal loading history during the welding procedure. This may lead to the presence of residual stress in the vicinity of the splice which affects the fatigue life of the reinforcing bar. Therefore, residual stress analysis and tensile test of the gas pressure welded splice are carried out in order to verify the load bearing capacity of the gas pressure welded splice. The reinforcing bar used in this work is SD400, which is manufactured in accordance with KS D 3504. The results show that the residual stresses in welded splice is relatively small, thus not affecting the performance of the reinforcing bar. Moreover, the strength of the gas pressure welded splice is high enough for the development of yielding in the bar. As such, the reinforcing bar with gas pressure welded splice has enough capacity to behave as continuous bar.
Dynamic Characteristics of Cross-Ply Laminated Shells
Park, Sungjin ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 527~533
DOI : 10.15683/kosdi.2015.11.4.527
A simplified method for the calculation of dynamic characteristics of initially stressed antisymmetric cross-ply laminated shells is presented in this paper using the natural frequencies under unloading state. The equation of motion of laminated shell with two opposite edges simply supported is investigated on the basis of Rayleigh-Ritz method and Mindlin shell theory with effect of the curvature term. The relationships of the non-dimensional natural frequencies with initial stresses the coeffcients of critical buckling and the boundaries of te dynamic principal instability region can be characterized by the non-dimensional natureal frequencies under unloading state. Numerical examples are presented t verify the simplified equations and to illustrate potential applications of the analysis.
Dynamic Characteristics of Laminated Shells by Finite Strip Mehod
Park, Sungjin ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 534~541
DOI : 10.15683/kosdi.2015.11.4.534
This study was presented how to interpret a laminated cylindrical shell having both ends supported condition are simple, and by identifying the three-dimensional stress characteristics. The governing equations were using the concept of finite element assuming the conversion into ordinary differential equations and partial differential equations by numerical analysis using the finite strip method. In particular, a function performed for the three-dimensional laminated cylindrical shell having a simple support condition were analyzed for the case composed of a specific function of the beam consisting of a trigonometric function. Layer material and layer thickness of a steel or concrete, the cylindrical length and the like by varying the parameters variously examine the effects of multi-layer cylindrical shell.
Application to Understanding and Counter Terrorism Corresponding field of Complex System Theory
Kwon, Jeonghoon ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 542~547
DOI : 10.15683/kosdi.2015.11.4.542
This study is discussing with respect to the access sector for terrorism response based on the thinking and methodology of complex systems theory, which is mainly used in many disciplines today to effectively respond to complex multi-environment change its purpose there. As a result, Butterfly Effect, fractal & self-similarity, self-organization, emergence, coevolution, edge of chaos the applicability of the corresponding field of terrorism through the complex system theory as metaphorical will be able to navigate.
Estimation of Service Life for Expressway Bridge Subjected to Chloride Ingress from De-icer
Lee, Honam ; Jeon, Chanki ; Kim, Juho ; Shim, Jaeyeong ; Jeon, Inkyu ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 548~555
DOI : 10.15683/kosdi.2015.11.4.548
This paper aims to estimate the service life of the target bridge structures subjected to chloride ingress from de-icer, which is used for safety of vehicles in winter, by investigating the chloride ingress into concrete. In this study, the 10-year-old bridge structures were investigated by measuring the chloride along the depth from the exposed surface to derive the surface chloride concentration and the diffusion coefficient for the prediction of service life. The service life of each measured point on the structures were estimated with the surface chloride concentration and the diffusion coefficient by using Life-365 software. As a result, it was estimated for all measured points to have over 100-year service life. Furthermore, the diffusion coefficient and the service life from the measured data were compared to another method calculated with the concrete mix, considering the time dependency of diffusion coefficient.
A Study on Improvement of the police disaster crisis management system
Chun, Yongtae ; Kim, Moonkwi ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 556~569
DOI : 10.15683/kosdi.2015.11.4.556
With about 75% of the population of Korea criticizing the government's disaster policy and a failure to respond to large-scale emergency like the Sewol ferry sinking means that there is a deep distrust in the government. In order to prevent dreadful disasters such as the Sewol ferry sinking, it is important to secure a prime time with respect to disaster safety. Improving crisis management skills and managerial role of police officers who are in close proximity to the people is necessary for the success of disaster management. With disaster management as one of the most essential missions of the police, as a part of a national crisis management, a step by step strengthening of the disaster safety management system of the police is necessary, as below. First, at the prevention phase, law enforcement officers were not injected into for profit large-scale assemblies or events, but in the future the involvement, injection should be based on the level of potential risk, rather than profitability. In the past and now, the priortiy was the priority was on traffic flow, traffic communication, however, the paradigm of traffic policy should be changed to a safety-centered policy. To prevent large-scale accidents, police investigators should root out improper routines and illegal construction subcontracting. The police (intelligence) should strengthen efforts to collect intelligence under the subject of "safety". Second, with respect to the preparatory phase, on a survey of police officers, the result showed that 72% of police officers responded that safety management was not related to the job descriptions of the police. This, along with other results, shows that the awareness of disaster safety must be adopted by, or rather changed in the police urgently. The training in disaster safety education should be strengthened. A network of experts (private, administrative, and police) in safety management should be established to take advantage of private resources with regard to crisis situtions. Third, with respect to the response phase, for rapid first responses to occur, a unified communication network should be established, and a real-time video information network should be adopted by the police and installed in the police situation room. Fourth, during the recovery phase, recovery teams should be injected, added and operated to minimize secondary damage.
An Analysis on the Importance of Planning Indicator of Traffic Calming Technique for Walk Safety - Focusing on Physical Side -
Yoon, Sanghoon ; Choi, Hyoungsun ; Lee, Joohyung ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 570~580
DOI : 10.15683/kosdi.2015.11.4.570
In the study, planning indicator that should be considered in applying traffic calming technique was derived, and it was intended to analyze the importance of indicator that should most considered in planning traffic calming technique through AHP analysis on the basis of it. The result of planning indicator may be summarized by dividing into road section and crossing section. In road section, hump (0.35) for equipment stimulating reduction of speed, hump image/fort (0.31) for visual control equipment, and slalom type road (0.52) for chicane, and bollard (0.47) for blocking passing route are shown to be the most important and come before anything. In crossing section, signal indicator (0.33) for visual control equipment, rumble strip (0.44) for equipment stimulating reduction of speed, zigzag type road (0.65) for chicane, and blocking going straight at crossing (0.45) for blocking passing route are shown to be the most important and come before anything. The result of the study is judged to be used for basic material in applying traffic calming technique and establishing policy hereafter.
A Study on Fire Risk Assessment of a EPS room using Fire Simulation
Ham, Eungu ; Kim, Dongcheol ; Lee, Changwoo ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 581~588
DOI : 10.15683/kosdi.2015.11.4.581
This study was conducted by utilizing simulation (FDS6) the fire characteristics of the flammable substances such as cable compartment of a small space in the EPS room type. In the partitioned space of a room EPS supply of oxygen does not facilitate the combustion of the upward-sloping curve, as in a standard fire curve is not observed. Simulation results in a situation where ventilation is limited to the heat release rate and smoke emission characteristics of the fire showed a complex and unstable form a repeating rise and fall. Fire time was longer than the fire load. Change in the smoke emission than the heat release rate is slow, but changes of the overall surface was found to exhibit affinity.
A study on the fire resistance characteristics of mud flat mortar
Yang, Seonghwan ; Kim, Huidoo ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 589~596
DOI : 10.15683/kosdi.2015.11.4.589
As urbanization progressed along with quantitative expansion of the construction industry, concrete has developed diversely as a material that is the most extensively used in the construction industry. However, aggregate resources that are an essential element of concrete production are gradually being depleted and the phenomenon of aggregate shortage has been intensifying due to the reinforcement of regulations on environmental issues. Therefore, in the present study, environment friendly mortar was made by replacing aggregate with mud that is dumped when dredging sand is dumped. To identify the dynamic characteristics of the mortar and to identify its fire resistance efficiency, the mortar was heated and its residual compressive strength was measured. In the results, the residual compressive strength values of MM1, MM2, and MM3 were 45%, 95%, and 57.7% respectively and the mix MM2 showed the highest fire resistance efficiency.
A Study on Installation of U-Turn Lane for Efficient Operation of Left Turn at Signalized Intersections
Park, Chahgwha ; Yoon, Byoungjo ; Kang, Bongsuk ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 597~606
DOI : 10.15683/kosdi.2015.11.4.597
Until now, u-turn lane installation methods have been studied variously. But, There is no specific standard yet. This study ranges are commercial area in Incheon metropolitan city through field investigation and presents specific design standard for efficient operation of left turn using a field data through calculating relevant permitted u-turn lane length and minimum separation distance from the front intersection to starting point of permitted u-turn lane in urban signalized intersections in commercial area. Relevant permitted u-turn lane length is found to be 32m and minimum separation distances from the front intersection to starting point of permitted u-turn lanes are 72m, 40m, 24m in case of 1 left turn lane, 2 left turn lanes and 3 left turn lanes respectively. By comparing result values and field data, they had a large difference under the similar situations in their lengths. This result is caused of no specific standard about design of u-turn lanes. If results of this study applied to design of u-turn lanes, signalized intersections in urban commercial areas would be operated more safety and efficiently.
Flexural Behavior Evaluation of Two Types Fiber Reinforced Shotcrete using Round Panel Test
Jeon, Chanki ; Jeon, Joongkyu ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 607~614
DOI : 10.15683/kosdi.2015.11.4.607
This study evaluated the flexural performance of steel and PP fiber reinfroced shotcrete using round panel test according to ASTM that can consider the actual stress of fiber reinforced shotcrete in tunnel and under ground structures. The results of round panel test are converted to the square panel test results according to the EFNARC. The energy absorptions of each fiber reinforced shotcrete were classified according to the EFNARC toughness classification. Test results show that the PP fiber reinforced shotcrete has better flexural performance compared with the steel fiber reinforced shotcrete.
The study on the Effectiveness Improvement of physical security system: Focused on the Disaster Safety Awareness
Kim, Changho ; Shin, Soyoung ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 615~621
DOI : 10.15683/kosdi.2015.11.4.615
Man-made disasters are disastrous event, which can be reduced the damage through preventive measures and thorough inspections, unlike natural disasters. Thus, safety consciousness of citizens is not only important, but also safety consciousness of security guard who are involved with facility safety management. In other words, safety consciousness and fostering professionalism of security guards could reduce the damage, including human disaster and it enables the effective safety management. Therefore, this study selected the training and the organizational safety as variables with the influencing factors for improving the disaster safety consciousness of facility guard. After the analysis, the following results were confirmed. First, the training content and its environment would have a significant impact on the disaster safety consciousness. Second, organizational safety would have a significant impact on disaster safety consciousness. In other words, the improvement of training program and the formation of safety culture in organizational level will have a positive impact on the disaster safety awareness and enable effective safety management.
Police security measures for foreign criminals : Focusing on Suwon
Park, Chanhyeok ; Seo, Bongsung ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 622~633
DOI : 10.15683/kosdi.2015.11.4.622
With recent news reports on violent crimes committed by foreigners, public hatred toward foreign criminals and fear about such crimes are growing, calling into question public safety measures implemented by the police and the immigration system. At the same time, due to globalization and structural changes in the labor market, it is certain that the influx of migrant workers will continue to increase. Against this backdrop, this paper seeks to examine the current status of foreign nationals staying in Korea and their criminal records focusing on Suwon city, and propose public safety measures the police could take with regard to crimes committed by foreigners. Also, the paper looks into public safety measures of the Korea Immigration Service and Suwon city, and suggests short- and long-term measures to prevent crimes committed by foreigners. The paper begins by examining the current public safety measures of the police and Suwon City concerning crimes committed by foreign nationals residing in Korea. Based on such examination, it points out insufficient patrol and investigation personnel as problems, and recommends short- and long-term measures for future improvement. This paper maintains that for the Korean society to successfully deal with the increasing number of foreigners in Korea, the current immigration system and public safety measures of the police will have to change. While the police alone cannot reduce the crime rates at local and national levels, nonetheless, proactive measures by the police are needed given the growing number of migrant workers and immigrants in Korea. Also important are mindset changes not only of relevant authorities, but also of the public. The paper recommends a set of short-and long-term public safety measures the police should institute to efficiently deal with crimes committed by foreigners.
Transition of Four Major Social Safety Indexes by Time Series Data Analysis
Song, Chang Geun ; Jang, Hyun-ju ; Lee, Kum-Jin ;
Journal of The Korean Society of Disaster Information, volume 11, issue 4, 2015, Pages 634~638
DOI : 10.15683/kosdi.2015.11.4.634
Four major social safety indexes including industrial accident, traffic accident, fire, and violent crime were selected, and transition of those values by time series data analysis since 2003 was presented. Comparing with the 2003 figure, the index of industrial accident was reduced by 27.8%, which was the most improved safety index. The indicators describing the traffic accident and violent crime rate were reduced by approximately 12%. However, the fire safety index showed an increase of 40% compared with the base year because national fire classification system was changed so that minor fire is also included in the counting since 2006.