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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korea Safety Management and Science
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Journal DOI :
Korea Safety Management and Science
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Volume & Issues
Volume 16, Issue 4 - Dec 2014
Volume 16, Issue 3 - Sep 2014
Volume 16, Issue 2 - Jun 2014
Volume 16, Issue 1 - Mar 2014
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A Study on Risk Assessment Model for Occupational Health and Safety Management System - Focused on Organization Using Chemical Material -
Cho, Kyeong-Seok ; Lee, Chang-Ho ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 1~9
DOI : 10.12812/ksms.2014.16.4.1
The occupational health and safety accidents were continuously increased during handling, usage and manufacturing the chemical materials according to increase of small and medium sized enterprises in domestic industries. These accidents mainly resulted from insufficient occupational health and safety management and deteriorative facilities and focused on corresponding operation to minimize the damage of accidents after occurrence. But, it was required that we grasped the occurrence causes of occupational health and safety risk in handling, usage and manufacturing the chemical materials and develop the adequate corresponding operation and system according to the possible occurrence of occupational health and safety risk. This study deals with the development of risk assessment model to derive the risk and important risk of occupational health and safety and then help to construct the self-controlled occupational health and safety system for small and medium sized enterprises handling the chemical materials.
On the Development of Modularized Structures for Safety-Critical Systems by Analyzing Components Failure
Kim, Young Min ; Lee, Jae-Chon ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 11~19
DOI : 10.12812/ksms.2014.16.4.11
Modern systems development becomes more and more complicated due to the need on the ever-increasing capability of the systems. In addition to the complexity issue, safety concern is also increasing since the malfunctions of the systems under development may result in the accidents in both the test and evaluation phase and the operation phase. Those accidents can cause disastrous damages if explosiveness gets involved therein such as in weapon systems development. The subject of this paper is on how to incorporate safety requirements in the design of safety-critical systems. As an approach, a useful system structure using the method of design structure matrix (DSM) is studied while reflecting the need on systems safety. Specifically, the effects of system components failure are analyzed and numerically modeled first. Also, the system components are identified and their interfaces are represented using a component DSM. Combining the results of the failure analysis and the component DSM leads to a modified DSM. By rearranging the resultant DSM, a modular structure is derived with safety requirements incorporated. As a case study, application of the approach is also discussed in the development of a military UAV plane.
Study on the Research Trends and Prospects about Construction Safety & Disaster
Kim, Kyong-Hoon ; Jang, Ho-Myun ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 21~29
DOI : 10.12812/ksms.2014.16.4.21
In this study, we recognize that the interest about construction safety and disaster increases, and check the status of current research about construction safety. And we obtain the direction of future researches and implications for development. For this study, we analyzed the published researches in the last 11 years about construction safety, and addressed annual trends and research topics for a lot of construction safety research. And the future prospects of construction safety research were analyzed with the latest news articles.
A Study on the Effect of the Application of Safety Patrol Management System(SPMS) upon the Worker's Way of Thinking & Disasters in Construction Site
Yoon, Yeo-Chan ; Chung, Kwang-Seop ; Kim, Young Il ; Kim, Ji-Hoon ; Kim, Sung-Min ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 31~40
DOI : 10.12812/ksms.2014.16.4.31
While Korea had achieved radical growth of construction industry, it also had accumulated problems in material, human and economical loss due to its low quality of safety level. Therefore, not only enterprises but also the nation is putting in a great deal of efforts for construction safety. However, its effect is not satisfiable. This research aims for change of construction cite by introduction of professional Safety Patrol Management System(SPMS) and consideration of its necessity. To consideration of its necessity, we compared and anaylzed average numbers of indicated dangers and safety accident incidences in each construction cites and we researched changes in worker's safety sense. It will establish the suitable design standards and suggest the basic database for estimating disaster and accident ratio.
Crash of a small construction site accident analysis and Risk Assessment Study -Focusing on project value of less than 20 billion small construction sites-
Shin, Sung Su ; Bae, Young Bok ; Ha, Haeng Bong ; Kang, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 41~51
DOI : 10.12812/ksms.2014.16.4.41
Share of total accidents in construction accidents construction site accident 70% of small embroidery Reducing the rate of Construction of the entire construction accidents decreased overall is a very meaningful work. Disaster reduction continues to increase despite the efforts of a small construction site(Amount less than 2,000,000,000) for Disaster Reduction In order to identify more clearly the cause of the system and provide the urgently needed measures.
A study on the survey and improvement of work platforms at construction sites
Jeong, Seong-Chun ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 53~62
DOI : 10.12812/ksms.2014.16.4.53
According to the statistics of occupational injuries in 2013, the work platforms were main objects causing fall injuries in construction sites. But many scaffold and platform workers use and install the work platforms and the fixed and mobile scaffolding without considering about safety and health standards. We had done a nationwide survey about how the platform workers obey safety and health standards. As the result of this survey, in order to ensure the safety of the work platforms, we founded that the platform workers must obey the safety and health standards when using and installing the work platforms. To improve the safety and health conscious of the workers, it needs to educate a worker on safety and health standards for work platforms. Also, to effectively prevent constructin injuries for the work platforms, it is rextricted for workers to use only safety certified work platforms. And, before installing and using work platforms, it needs to make a work plan for work platforms and obey it.
A study on the causal analysis of death accidents by the falls in the construction sites
Shin, Woonchul ; Jeong, Seong Chun ; Lee, Ro Na ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 63~69
DOI : 10.12812/ksms.2014.16.4.63
The large-sized, complex, and multi-storied construction industry caused the increasing construction amount together with insufficient skilled workers to increase the probability of occurring accident, resulting in the most construction accidents next to manufacturing industry. Death accidents have risen to serious level, compared construction industry with manufacturing industry along the numbers of workers. Due to the main feature of one-time industry receiving orders, open-air dispersed production activity and the long-complex production process, the continuous efforts to prevent and manage safety accidents were made but the results were of no effect. They didn't deeply analyze the falling accidents that consist of half death accidents in construction industry. This study has classified in detail Missteps, Slip, Trip, Unstability and the others on the basis of gait characteristics, occurrence types, frequency and intensity of death accidents. This study suggested the effective methods on the construction safety management according to the causes of falling accidents. This study will be expect to be used as the basic data in the procedure and the program of safety management.
An Empirical Study on Importance of Evaluation Factors for Improvement of Fire Emergency Medical Service
Hwang, Dong-Wan ; Kwon, Young-Hee ; Kim, Jeon-Soo ; Kang, Yun-Jin ; Kang, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 71~80
DOI : 10.12812/ksms.2014.16.4.71
This study is performed to determine the priorites of the evaluation factors for the improvement of fire emergency medical service by increasing it's efficiency to protect the people's lives effectively, and by recognizing it's mid-long term development. Based on the output of the analysis, the critical evaluation factors of the fire emergency medical services to be improved shall be identified, and shall be intended to use strategically for increasing the efficiency of all the activity in the EMT service, and also for providing the basic date to product and manage the good quality services. To calculate the priority of the evaluation factor for each level as shown on this study, AHP(anaysis hierarchy process) with pairwise comparison method is applied. According to the priority analysis for the evaluation factors in main category (evaluation zone), 'medical service professional aspect' is recognized as highest one, and 'service infrastructure aspect', 'service management aspect' are indicated in order. According to the priority analysis for the evaluation factors in evaluation index, 'professional personal arrangement' in the service infrastructure aspect, 'appropriateness and timeliness of emergency medical care' in the medical service professional aspect, and 'clinical training' in the service management aspect are respectively recognized as most important factors.
On the Scenario-Based Hazard Analysis with Safety Requirements Incorporated to Assure Railway Safety
Jung, Ho Jeon ; Lee, Jae-Chon ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 81~90
DOI : 10.12812/ksms.2014.16.4.81
Modern systems can be characterized by ever-increasing complexity of both the functionality and system scale. Thus, due to the complexity the chances of accidents resulting from systems failure can then be growing. Even worse is that those accidents could result in disastrous damage to the human being and properties as well. Therefore, the need for the developed systems to be assured with systems safety is apparent in a variety of industries such as rail, automobiles, airplanes, ships, oil refinery, chemical production plants, and so on. To this end, in the industry an appropriate safety standard has been published for its own safety-assured products. One of the core activities included in the most safety standards is hazard analysis. A conventional approach to hazard analysis seems to depend upon the scenarios derived from the ones used previously in similar systems or based on former experience. The objective of this paper is to study an improved process for scenario-based hazard analysis. To achieve the goal, the top-level safety requirements have first been reflected in the scenarios. By analyzing and using them, the result has then lead to the development of safety-assured systems. The method of modeling and simulation has been adopted in the generation and verification of scenarios to check whether the safety requirements are reflected properly in the scenarios. Application of the study result in the case of rail safety assurance has also been discussed.
The Effect of Organizational Culture and Safety Climates on Safety Behavior and Accidents: Focused on the metro train drivers
Ro, Choon-Ho ; Shin, Tack-Hyun ; Lee, Yong-Mann ; Gu, Seung-Hwan ; Kim, Seung-Tae ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 91~99
DOI : 10.12812/ksms.2014.16.4.91
This study highlights the theme of human error of train drivers, conducting empirical analysis on the relationship between organizational culture, safety climates, safety behavior, and accident. The empirical test results based on questionnaires received from 223 train drivers working at A subway firm indicated that relationship conflict and psychological reward as the elements of organizational culture variables showed a significant positive effect on CEO philosophy, communication, and boss's leadership. And only boss's leadership showed a positive influence on safety behavior, which in turn showed a significant negative relationship with accidents.
A Systematic Method for Analyzing Human Factors-Related Accidents to Improve Aviation Safety in the Air Force
Lim, Chea-Song ; Ham, Dong-Han ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 101~111
DOI : 10.12812/ksms.2014.16.4.101
Aviation safety is increasingly important to secure the safety of the Republic of Korea Air Force (ROKAF). A critical activity for enhancing aviation safety is to analyze an accident throughly and to identify causes that can explain it reasonably. The results of such a systematic accident investigation can be effectively used for improving information displays, task procedures, and training systems as well as for reorganizing team structure and communication control system. However, the current practice of analyzing aviation accidents in ROKAF is too superficial and simple to diagnose them systematically. Additionally, the current practice does not give a full consideration to human factors that have been identified as main causes of most of the aviation accidents. With this issue in mind, this study aims to suggest a new approach to analyzing aviation accidents related to human factors.The proposed method is developed on the basis of several models and frameworks about system safety, human error, and human-system interaction. Its application to forty-two human factors-related accidents, which have occurred in ROKAF during the last ten years, showed that the proposed method could be a useful tool for analyzing aviation accidents caused by human factors.
A Study on Sharing Safety Information of Children's Play Facilities based on GIS using Accident Analysis for Accident Prevention
Yoo, Byungtae ; Lee, Sujin ; Heo, Boyoung ; Yoon, Jiwon ; Park, Sosoon ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 113~121
DOI : 10.12812/ksms.2014.16.4.113
Children's play facilities have changed over a decade from the traditional play facilities in the front yard to the new type of commercial play facilities which install more exciting and enjoyable facilities, such as Kids Park. The more diversified in the type of facilities, the more difficult in the safety management by the existing system. The 'Safety Management System of Children's Play Facilities' of MOSPA(Ministry of Security and Public Administration) has provided the safety information uni-directly by government sector to the private communities. Recently, multi-directional information sharing methods, such as community mapping are adopted actively in the social activities which have common purpose for making the better community by information sharing with government and private sector. On the purpose of citizen's participation for safe play facilities and preventing accidents, this study investigated the status of child accidents and safety standards, especially focused on the children's play facilities. And the way for sharing safety information among the communities with the GIS mapping skills is suggested in the respect of more easily monitoring and practically inputting the comments on the status of management of play facilities by real users based on their experiences. It is expected that more activities from the private sector would participate to the safety management of children's play facilities by realizing the suggested system.
On Improving the Verification, Validation and Accreditation Process by Including Safety Requirements in M&S-Based Development of Weapon Systems
Sim, Sang Hyun ; Lee, Jae-Chon ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 123~131
DOI : 10.12812/ksms.2014.16.4.123
Modern weapon systems are getting more complex in terms of the functionality and also the conditions on the environment and range in which they are deployed and used. Therefore, many development programs can easily be exposed to a variety of risks, resulting in delayed schedules and cost overrun. As such, effective means are necessary to keep the defence budget at an affordable level while competitive edges on technological aspects are retained. As one way to meet those need, modeling and simulation (M&S) methods have widely been used, particularly in the test and evaluation (T&E) process for weapon systems development. The result of M&S-based systems development should be evaluated by the verification, validation & accreditation (VV&A) process to assure keeping reliability at a desired level. On the other hand, due to the explosiveness, the weapons systems development naturally requires to consider safety issues in both the T&E and operational periods. The purpose of this paper is to improve the VV&A process by reflecting the safety requirements therein. To do so, the VV&A process has been analyzed and graphically modeled first and then safety elements have been incorporated effectively. The use of the improved process in the war ships development has also been discussed. Based on the process proposed and the consequent database constructed, the target system can be expected to benefit from reducing development risks while assuring systems safety.
An empirical study of the impact which the change of age ratio of disaster response organization has on organization effectiveness and quality assurance - Focused on field activities firefighters in Seoul metropolitan city -
Park, Chan-Seok ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 133~145
DOI : 10.12812/ksms.2014.16.4.133
Aging of the fire organizations, typical disaster response agencies also will be in serious problems with aging society. It is expected that the ratio of more than fifties will reach 31~40% after 10~15 years in Seoul fire organization. This Aging of firefighters can bring about a serious problem in disaster and safety management, since firefighters require robust fitness and healthy bodies in disaster situations. In this study, after the analysis of aging status and trend of firefighters in Seoul, I have an empirical analysis about the impact this aging has on organization effectiveness and QA. As a result, the increase of the elderly reduced organization effectiveness and QA. In addition, in the group consisting of less than 50, it is expected to increase the organization's effectiveness and QA activities through field activity to improve the professional skills with age, but could not be confirmed. In the group consisting of more than fifties, it was found that aging had a significant negative impact on organizational effectiveness and QA activities as factors, including physical deterioration by aging.
Redesigning education programs for alleviating disaster response officials' stress·PTSD and it's empirical analysis for effectiveness
Park, Chan-Seok ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 147~157
DOI : 10.12812/ksms.2014.16.4.147
Firefighters receive extreme stress and suffer from PTSD in disaster. But we have not been paid attention to them. The purpose of this study is to analyze the problems of previous PTSD education programs in fire academy and to present the practical educational programs for firefighters to use in the disaster field. In the empirical analysis of this practical educational programs(EFT program), this program is more effective than existing theory-focused education training program.
Study on the Consequence Analysis about Leakage Scenarios for Hydrogen Gas
Kim, Tae Hun ; Oh, Young Dal ; Lee, Man Soo ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 159~165
DOI : 10.12812/ksms.2014.16.4.159
For the hydrogen economy system being tried starting with the 21st century, the fields that was not dealt with so far, such as the safety measure for large leakage accidents, the safety problem at infrastructures like a hydrogen station, the safety problem in terms of automobiles depending on introduction of hydrogen cars, the safety problem in a supply for homes like fuel cells, etc., are being deeply reviewed. In order to establish a safety control system, an essential prerequisite in using and commercializing hydrogen gas as an efficient energy source, it is necessary to conduct an analysis, such as analysis of hydrogen accident examples, clarification of physical mechanisms, qualitative and quantitative evaluation of safety, development of accident interception technologies, etc. This study prepared scenarios of hydrogen gas leakage that can happen at hydrogen stations, and predicted damage when hydrogen leaks by using PHAST for this.
A study on the safety assessment of Hydrogen refueling system
Kim, Tae Hun ; Oh, Young Dal ; Lee, Man Soo ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 167~173
DOI : 10.12812/ksms.2014.16.4.167
Hydrogen energy is expanding in range for civil use together with development of pollution-free power sources recently, and it is judged that the use of hydrogen will increase more as a part of carbon dioxide reduction measures according to the Climatic Change Convention. Especially, it is thought that the securement of safety of the used dispenser will be the biggest obstacle in the use of high-pressure hydrogen because the hydrogen station is operated in a high pressure. This study found risks in the process and problems on operation by making use of HAZOP(6 kinds), a qualitative safety evaluation technique, and FMEA(5 kinds), a fault mode effect analysis, for the hydrogen charging system at a hydrogen gas station, derived 6 risk factors from HAZOP and 5 risk factors from FMEA, and prepared measures for it.
A Management System for LPG Gas Vessel
Bang, Yong-Ki ; Kang, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 175~183
DOI : 10.12812/ksms.2014.16.4.175
This study examined the effective system, which manages LPG Gas Cylinder by inserting an electronic tag or module to store a production year, material specification, charging data, management data, and warehousing data. Therefore, the user can effectively monitor the checking date, reexamining the gas cylinder (or not), and manufacture and expiration date. Moreover, through this study, the user can simply monitor a production date, warehousing data, and charging frequency by connecting a mobile app and a gas cylinder in which has an electronic tag or module at any time.
A Study on Safety Distance for Small Scale LNG Storage facility
Oh, Shin-Kyu ; Jo, Young-Do ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 185~191
DOI : 10.12812/ksms.2014.16.4.185
In this study safety distance was investigated for small-scale LNG storage facilities in order to provide basic data for safety. The results are as follows; (1) For explosion pressure criteria, current criteria are reasonable, but water spray system should be recommended to LNG storage tank to ensure safety. (2) For criteria based on the results of the quantitative risk assessment, criteria applied to people are
for radiation, LFL for dispersion, and 7kPa for explosion pressure. And criteria applied to facility are
for radiation and 20 kPa for explosion pressure.
A Study on Risk and Safety measures of the Improved Explosive Device
Han, Jae-Hoon ; Choi, Min-Ki ; Choi, Don-Mook ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 193~202
DOI : 10.12812/ksms.2014.16.4.193
Crimes with explosives is one of the mass-destructive crimes that involves the most victims. It is heavily punished under the Korean laws. Mid-eastern area is one of the leading places that are home to improvised explosive device attacks, in the form of religious or political terrorism because of its convenience of use, production and disguise. Improvised bombs are permeating into domestic crimes in Korea as their tools. Use of explosive substances are strictly restricted in this country, but it is not impossible to find its information online and to create private explosives with a bit of interest. And they are being traded in the grey market. For this reason, this thesis offers the method of an efficient safety control of explosive substances, which can be used as raw materials for improvised explosive devices, in order to protect citizens' lives and properties and to promote national security down the road.
Sickness absence and job satisfaction
Rhee, Kyung Yong ; Park, Won Yeol ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 203~213
DOI : 10.12812/ksms.2014.16.4.203
Sickness absence is one of the most important indicators for worker's health and occupational safety and health performance. Sickness absence is primarily depended upon sickness but psycho-social factors in workplace may moderate sickness absence. Even though worker is falling into illness, sickness absence can be prevented by job satisfaction. In Korea it is very difficult to find research output about the association of sickness absence with job satisfaction. This study is planned to investigate the effect of job satisfaction on sickness absence. The third Korean Working Conditions Survey done by Occupational Safety and Health Research Institute in 2011 was used to analyze by logistic regression analysis. The result has shown that job satisfaction has statistically significant effect on sickness absence and simultaneously diminish the effect of symptoms experience on sickness absence. The effect of job satisfaction is greater in short term sickness absence than in long term sickness absence. This study has some limitation because of the cross sectional data of Korean Working Conditions Survey. In future, sophisticated statistical analysis may be done with modelling.
The Study on the Enhancement of Effectiveness of Industrial Accident Compensation Insurance's Application : Focusing on the Employee's Corresponding Types and Casual Analysis
Jeong, Jae-Hoon ; Park, Dae-Young ; Oh, Ju-Yeon ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 215~227
DOI : 10.12812/ksms.2014.16.4.215
This paper is to investigate the employees' corresponding types and casual analysis. It proposes the legal and practical measures for improvement of Industrial Accident Compensation Insurance's usability. The results from the empirical analysis indicate that (1) 91.4 percent of the respondents feel the necessity of Industrial Accident Compensation Insurance, (2) 67.4 percent of the respondents perceive that Industrial Accident Compensation Insurance is useful, (3) employers' perceptions of the specific items of Industrial Accident Compensation Insurance appears to be low. (4) 35.9 percent of the respondents deal with industrial accidents through other ways such as health insurance and car insurance. The study ends with discussion of the findings and provides several theoretical and managerial implications and recommendations for future research and applications.
Failure Modes and Effects Analysis by using the Entropy Method and Fuzzy ELECTRE III
Ryu, Si Wook ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 229~236
DOI : 10.12812/ksms.2014.16.4.229
Failure modes and effects analysis (FMEA) is a widely used engineering tool in the fields of the design of a product or a process to improve its quality or performance by prioritizing potential failure modes in terms of three risk factors-severity, occurrence, and detection. In a classical FMEA, the risk priority number is obtained by multiplying the three values in 10 score scales which are evaluated for the three risk factors. However, the drawbacks of the classical FMEA have been mentioned by many previous researchers. As a way to overcome these difficulties, this paper suggests the ELECTRE III that is a representative technique among outranking models. Furthermore, fuzzy linguistic variables are included to deal with ambiguous and imperfect evaluation process. In addition, when the importances for the three risk factors are obtained, the entropy method is applied. The numerical example which was previously studied by Kutlu and Ekmekio
lu(2012), who suggested the fuzzy TOPSIS method along with fuzzy AHP, is also adopted so as to be compared with the results of their research. Finally, after comparing the results of this study with that of Kutlu and Ekmekio
lu(2012), further possible researches are mentioned.
Research on the Health Protection and Characteristics of Working Conditions and Occupational Safety & Health in the Film and Television Artist
Yi, Kwan Hyung ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 237~246
DOI : 10.12812/ksms.2014.16.4.237
The purpose of this study is to identify the overall occupational safety and health status and the characteristics of the workers engaged in the field of the film and television artists, and to take appropriate measures to prevent industrial accidents, profession and working environment, safety recognition and education, safety activities, accident experience, and job stress survey. Survey using a structured questionnaire is to be used for 302 worker directly interview research. Safety awareness level of himself or herself was "middle level" of 3.1 points. Those of colleagues and the general public were evaluated to be low as 2.8 points and 2.5 points, respectively. During the last 12 months, 4.6% of total workers have received an industrial safety health education for work-related accident or disease. Regarding cases of having experienced work-related accident or having been exposed to work-related disease over the past 1 year, 20.2% of total respondents have experienced accident. 16.2% of total respondents have experienced work-related disease. And the workers are approximately one's own subjective feeling of physical symptoms that have appeared. In addition, the film sector workers in particular occupations men than women have higher job stress. Preventive education for industrial safety is required to be expanded and strengthened. Safety education is urgently required in order to prevent, and to reduce accident. Safety and health guideline is required to be developed and disseminated in order to prevent accident in advance. Finally, the actor and their staff members to reduce the stress, mental health care and education carefully needs to be in parallel. Also, when taking measures to reinforce safe work environment, it needs to be protected.
A Case Analysis on Safety Researcher Relationship during 2011-2013
Yang, Byounghak ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 247~255
DOI : 10.12812/ksms.2014.16.4.247
Safety management is becoming one of the most hot research issues in Korea. We collected the researcher information in two safety related journals of the journal of the Korea safety management & science and the journal of Korean society of safety. Social network analysis was used to analyse the research relationship among the authors in each journal. The degree centrality, the betweenness centrality, the closeness centrality and the proximity prestige centrality on each researcher were calculated to find out most influenced researcher. Biggest research groups in each journal were introduced by clustering technique.
The comparison of provision of risk information between employees with labour union and non labour union
Cho, Hm Hak ; Rhee, Kyung Yong ; Kim, Young Sun ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 257~262
DOI : 10.12812/ksms.2014.16.4.257
Risk information may be one of the most important factor for worker's safe behavior because that safe behavior can be oriented by attitude based on risk information. Traditionally KAP(knowledge, attitude and practice) model was useful frame for the change of human behavior. Knowledge is formed by information through experience and education. Worker's health may be prevented by his or her own active safe behavior based on risk information. This paper is to investigate the effect of labor union on the provirion of risk information by labor union. Data for analysis is the third Korean Working Conditions Survey done by Occupational Safety and Health Research Institute in 2011. The sample size is 50,032 economic active person surveyed by household interview survey with structure questionnaire by trained interviewer. The difference of risk information provision among employees was tested by mean difference test. The level of risk information of employees of companies with labor union is higher than that with non labour union. This paper has some implication for the promotion of safe behavior of employees through risk information provision mediated by labor union. Some limitation of this study may be considered because of using the cross sectional survey data.
A Study on the Effects of Market and Technological Orientation of Manufacturing Companies upon Absorptive Capacities and Product Development Performance
Na, Sang Gyun ; Tian, Chen ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 263~274
DOI : 10.12812/ksms.2014.16.4.263
The present study is aimed at examining in multilateral ways the structural relationship among technological orientation, market orientation and product development performance of manufacturing companies, which are deemed to be key factors for them to increase absorptive capacities. From the study, it was revealed that: First, in terms of the relationship between market orientation and absorptive capacities, it was made clear by the analysis that the market orientation sought after by manufacturing companies has influence upon their absorptive capacities. Second, with regard to the relationship between technological orientation and absorptive capacities of manufacturing companies, the analysis found that the technological orientation pursued by them affects their absorptive capacities. Third, as for the relationship between absorptive capacities and product development performance, the analysis made it clear that the absorptive capacities of manufacturing companies exerts influence upon their product development performance. Fourth, in respect to the relationship between market orientation and product development performance, it was concluded from the analysis that market orientation produces effect upon product development performances like technological innovation and acquisition of new technologies needed for product development. Finally, regarding the relationship between technological orientation and product development performance of manufacturing companies, it became obvious from the analysis that the technological orientation affects the product development performance.
Analysis of employee's satisfaction factor in working environment using data mining algorithm
Lee, Dong Ryeol ; Kim, Tae Ho ; Lee, HongChul ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 275~284
DOI : 10.12812/ksms.2014.16.4.275
Decision Tree is one of analysis techniques which conducts grouping and prediction into several sub-groups from interested groups. Researcher can easily understand this progress and explain than other techniques. Because Decision Tree is easy technique to see results. This paper uses CART algorithm which is one of data mining technique. It used 273 variables and 70094 data(2010-2011) of working environment survey conducted by Korea Occupational Safety and Health Agency(KOSHA). And then refines this data, uses final 12 variables and 35447 data. To find satisfaction factor in working environment, this page has grouped employee to 3 types (under 30 age, 30 ~ 49age, over 50 age) and analyzed factor. Using CART algorithm, finds the best grouping variables in 155 data. It appeared that 'comfortable in organization' and 'proper reward' is the best grouping factor.
The Effects of Ethical Leadership on Organizational Identification and Organizational Commitment
Hwang, Sang-Kyu ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 285~294
DOI : 10.12812/ksms.2014.16.4.285
The paper examines how ethical leadership and organizational identification contributed to explaining organizational commitment. In order to verify the relationships and mediating effect, data were collected from 256 individuals in employees working in small and medium-sized firms at Jinju, Changwon, Gimhae City to test theoretical model and its hypotheses. All data collected from the survey were analyzed using with SPSS 18.0. This study reports findings as follows: first, the relationship between the ethical leadership and the organizational identification is positively related. Second, there was also a positive correlation between the organizational identification and the organizational commitment. Third, the relationship between the ethical leadership and the organizational commitment is positively related. Finally, the organizational identification played as a partial mediator on the relationship between ethical leadership and organizational commitment. Based on these findings, the implications and the limitations of the study were presented including some directions for future studies.
A Study for Developing Diagnosis Model of Global Innovation Capabilities of SMEs
Roh, Dong-Gi ; Roh, Hyun Sook ; Choi, Yun-Jeong ; Seo, Jong-Hyen ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 295~303
DOI : 10.12812/ksms.2014.16.4.295
In this paper, due to the instability of the domestic market, global competition is intensifying in the current situation of global capacity building of SMEs for the purpose of developing a diagnostic indicator placed on the purpose. In this model, the results of applying several companies overall global innovation pilot enterprises and non-rated global innovative companies awarded significant difference between the score and the ability to believe the show. Non-global innovation companies, the relative firm size factor and R&D investment and patent number of factors are lacking appeared shone This is a common small business nature of the majority of companies small and R&D investment, the absolute amount is insufficient to reflect that, but the global innovator in the case of firm size and the relatively large amount of investment that never shows.
A Study on Effects of Wireless Devices using Similar Frequency for Location Determination Precision
Jang, Jung-Hwan ; Jang, Jing-Lun ; Kwon, Hyeok-Cheol ; Li, Guang-Zhu ; Lee, Chang-Ho ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 305~311
DOI : 10.12812/ksms.2014.16.4.305
Recently, though it was developed several services using the context-awareness technology of IoT, there exist also obstacles for high quality service. Specifically it is short the study for uncertainty of context-awareness. This study focused on understanding the effect of frequency interference among several environmental factors for location determination to increase precision of location determination. It was found that frequency interference between devices using 2.4Ghz frequency effect on the location determination precision. It was resulted that frequency interference increase the error of location determination precision. Then, we confirmed that it was required the suitable compensation method corresponding to frequency interference.
On the Distributor's EOQ with Inventory-level-dependent Demand Rate in the Presence of Order-size-dependent Delay in Payments
Shinn, Seong Whan ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 313~321
DOI : 10.12812/ksms.2014.16.4.313
Reinforcement leaning based multi-echelon supply chain distribution planning
Kwon, Ick-Hyun ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 323~330
DOI : 10.12812/ksms.2014.16.4.323
Various inventory control theories have tried to modelling and analyzing supply chains by using quantitative methods and characterization of optimal control policies. However, despite of various efforts in this research filed, the existing models cannot afford to be applied to the realistic problems. The most unrealistic assumption for these models is customer demand. Most of previous researches assume that the customer demand is stationary with a known distribution, whereas, in reality, the customer demand is not known a priori and changes over time. In this paper, we propose a reinforcement learning based adaptive echelon base-stock inventory control policy for a multi-stage, serial supply chain with non-stationary customer demand under the service level constraint. Using various simulation experiments, we prove that the proposed inventory control policy can meet the target service level quite well under various experimental environments.
An Empirical Study of Implementation and Application of Mold Life Cycle Management Information System In the Cloud Computing Environment
Koh, Joon-Cheol ; Nam, Seung-Done ; Kim, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 331~341
DOI : 10.12812/ksms.2014.16.4.331
Internet of Thing(IoT), which is recently talked about with the development of information and communication technology, provides big data to all nodes such as companies and homes, means of transportation etc. by connecting all things with all people through the integrated global network and connecting all actual aspects of economic and social life with Internet of Thing through sensor and software. Defining Internet of Thing, it plays the role of a connector of providing various information required for the decision-making of companies in the cloud computing environment for the Insight usage by collecting and storing Raw Data of the production site through the sensor network and extracting big data in which data is accumulated and Insight through this. In addition, as the industry showing the largest linkage with other root industries among root industries, the mold industry is the core technology for controlling the quality and performance of the final product and realizing the commercialization of new industry such as new growth power industry etc. Recently, awareness on the mold industry is changing from the structure of being labor-intensive, relying on the experience of production workers and repeating modification without the concept of cost to technology-intensive, digitization, high intellectualization due to technology combination according to IT convergence. This study, therefore, is to provide a golden opportunity to increase the direct and indirect expected effects in poor management activities of small businesses by actually implementing and managing the entire process of mold life cycle to information system from mold planning to mass production and preservation by building SME(small and medium-sized enterprises)-type mold life cycle management information system in the cloud computing environment and applying it to the production site.
A BSC Framework for the Evaluation of RFID/USN based Logistics/Distribution Systems
Park, Jeong-Sun ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 343~349
DOI : 10.12812/ksms.2014.16.4.343
Many systems using RFID/USN were and are being developed. Some systems are used in practice and some are not. Generally, the main reasons not being used are: The prices of chips are too high considering the effects. The application domain is not appropriate for RFID/USN. So, various skills for higher sensing precision have been introduced like using multiple sensors and avoiding metals which deter sensings seriously. Now, it is time to evaluate systems which were developed using RFID/USN technology. However, no systematic approach has been made for the evaluation. In this paper, a framework using BSC is introduced for the evaluation of systems using RFID/USN. In this framework, some Critical Success Factors(CSF) are derived and some Key Performance Indices(KPI) are developed for each CSF.
A study on the Evaluation index system of Changjitu's Green Logistics
Li, Guangzhu ; Xiao, Yao ; Li, Longzhen ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 351~358
DOI : 10.12812/ksms.2014.16.4.351
This study established the evaluation index system of green logistics of Changjitu in Chinarelated to environment, resource, economics and technology. It derived the weight value of indexes by using AHP method analyzing interviews logistics researchers and surveys. Based on the results, the paper described the problems of Changjitu's green logistics and proposed some development suggestions.
An Assessing of Franchisor's Firm Performance Based on Data Envelopment Analysis
Kim, Seonmin ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 359~369
DOI : 10.12812/ksms.2014.16.4.359
Due to the severe market conditions, pre-entrepreneur seeks to start their business through franchise company. This paper, using the data envelopment analysis(DEA) method, examines efficiency of a group of franchise company in order to provide efficiency information with pre-entrepreneur. Output-oriented DEA model is applied in the investigation of efficiency, and the overall efficiency score is decomposed into pure technical efficiency and scale efficiency. The input variables selected to evaluate the efficiency are franchise deposit, franchise contribution cost and the output variables are sales and number of franchises, and length of business. The results of this paper show franchise industry have the low level of overall efficiency and the main sources of inefficiency is found technical rather than scale. As a result, this paper provides not only the current status of efficiency information of a franchise with pre-entrepreneur but also give warning when they sign-up with franchise business.
Comparison of the Pushing Forces between Horizontal Handle and Vertical Handle According to the Handle Height and Distance
Song, Young-Woong ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 371~378
DOI : 10.12812/ksms.2014.16.4.371
Manual materials handling tasks are the main risk factors for the work-related musculoskeletal disorders. Many assistant tools for manual materials handling are being used in various kind of industries. One of them is a 4-wheeled cart which is widely used in manufacturing factories, hospitals, etc. The major force required to control the 4-wheeled cart is pushing and pulling. There are two types of handles being used for the 4-wheeled cart : vertical type (two vertical handles), and horizontal type (one horizontal handle). This study tried to investigate the pushing forces and subjective discomforts (hand/writst, shoulder, low back, and overall) of the two handle types with different handle height and distance conditions. Twelve healthy male students (mean age = 23.4 years) participated in the experiment. The independent variables were handle angle (horizontal, vertical), handle height (low, medium, high), and handle distance (narrow, medium, wide). The full factorial design was used for the experiment and the maximum pushing forces were measured in 18 different conditions (
). Analysis of variance (ANOVA) procedure was conducted to test the effects of the independent variables on the pushing force and discomfort levels. Handle height and angle were found to be the critical design factors that affect the maximal pushing forces and subjective discomfort. In the middle height, subjects exerted higher pushing forces, and experience lower discomfort levels compared to the high, and low height. There was no statistical influence of the handle distance to the pushing forces and subjective discomfort levels. It was found out that the effects of the handle angle (horizontal and vertical) on both pushing force and subjective discomfort were statistically significant (p < 0.05). The vertical handle revealed higher pushing force and lower discomfort level than the horizontal handle. The reason for that was thought to be the different postures of the hand when grasping the handles. The horizontal handle induced pronaton of the hand and made hand posture more deviated from the neutral position.
Differential temperature fire detector analysis of comparative study based on sensor installation
Hwang, Dong-Hwan ; Yang, Kwang Mo ; Kang, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 379~389
DOI : 10.12812/ksms.2014.16.4.379
Fire detectors are designed to minimize loss of life from a fire alarm system as an alarm to help evacuate more quickly until the completion of the evacuation alarm should be continued. the purpose of such alarms in order to achieve the characteristic fire heat release rate reaches a certain level, or when a certain time has elapsed, when the heat detector is to be alarms to answer. Requires a quick response, it is desirable to install the sensor as much as possible, but taking into account the cost of installation problems by engineering approach to minimize the quantity and rapidity of detection capability should be increased. In order to increase the rapidity of fire detectors in a room according to the height of the sensing period is to be maintained the optimum distance of the fire detector detects characteristics should be considered. Differential spot-type heat detectors installed domestic basis, depending on the type of sensor that can detect one sensor area is limited and less than 4m ceiling height regulations and simply double the number in excess of 4m and intended to be installed.
Analysis on the Acoustical Characteristics for Arrounding of Bridge by Absortion Panel Attatchment
Lee, You Yub ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 391~396
DOI : 10.12812/ksms.2014.16.4.391
For the purpose of finding out the acoustical characteristics of exterior materials in bridge, analytical studies are performed with boundary elements method by using the commercial program SYSNOISE. Before analysis, to figure out material property, it was conducted experiments of absorption coefficient for absorptive material. And prediction of pressure were conducted I GIRDER type (before & after installation of absorption panel ) and BOX GIRDER type (before & after installation of absorption panel) The results show that when the absorption panel is installed, environment around bridge can help reduce traffic noise. It was proved to be the effective noise reduction counter-plan for a traffic noise in the bridges.
Importance Performance Analysis using SN ratio
Cho, Yong-Wook ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 397~403
DOI : 10.12812/ksms.2014.16.4.397
The objective of this study is to provide improved methodology based on the IPA method. One case studies are solved by the proposed method. this study present the method that give value to use SN(Signal-to-Noise) ratio in IPA. A case study of lecture satisfaction are solved by the proposed method and the existing method. Also, the result is compared with the existing method using Mean and the proposed method using SN ratio.
Analyses on Factors of Job Satisfaction of Long-Term Employed using Analytic Hierarchy Process Technique - Based on the case of Work Innovation Officials in P company and Work Production in S company -
Kim, Chan Eun ; Kim, Kwang Chul ; Jeon, Myeong Jin ; Yun, Jun Hyeon ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 405~416
DOI : 10.12812/ksms.2014.16.4.405
The importance of Human Resource Management is big issue in business management recently. However, employ's job satisfaction is appeared as low. In this study, surveys were conducted among those long-term employs. The importance of job satisfaction is prioritized by AHP analysis based on results of survey to compare to the results of previously studied research. And this study will contribute to improvement of job satisfaction by comparing the facts in two different groups of occupation.
Performance Assesment based Dashboards for Maintenance Management System
Kim, Kwang Man ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 417~426
DOI : 10.12812/ksms.2014.16.4.417
Plant management have a greatest influence on the corporate variety of tasks such as production, quality, environment. So, various performance indices for plant management are operating. But plant management tasks can be carried out effectively, so that all of how to organize and efficiently manage indicators is lacking real condition In this paper, improved profitability, cost savings by applying the concept for the performance assessment, plant management services, such as the key indices for performance according to the objectives of the firm. Dashboard for plant management work using me to develop a system that manage.
Studies of the side effects on using the contrast media: It's characteristic and management
Seon, Jong-Ryoul ; Yoo, Se-Jong ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 427~431
DOI : 10.12812/ksms.2014.16.4.427
The purpose of this study is to monitor the current adverse reactions in administering CT contrast agents at general hospitals and also to suggest the practical guidelines to minimize the risk and to show the successful patient management. At four Dajeon city general hospitals, the contrast agents were administered in 646,828 cases and the overall prevalence of adverse reactions was 4,110 cases from January 2010 to December 2013. However, we excluded the two hospitals' 3,658 cases because the patients' data was inadequate. Consequently, the case surveys on the rest of 452 cases have been studied and submitted. After comparing the patients with a control group, we evaluated that the key factors of the adverse reactions were the gender and age difference of the patients, the examination period, the examination method, the quantity and administrating speed of the contrast agents. Even though the four general hospitals have their own management systems on adverse reactions, but their systems were not satisfying. To improve the quality of the management systems and to investigate further cases, some hospital administration procedures on the subject should be systemized and general hospitals should follow the recommended procedures. Moreover, the existing three-year-term evaluation should not only judge the adverse reaction management but also conclude some details on the sub criteria of the evaluation. The details on the sub criteria include the contrast agent characters, the quantity and administrating speed of the drug, the incidents' occurred time, an anamnesis; a case history, the medical history of the patients and the reaction occurring body parts, and the examination title. The details of the medical examiners are also added to the sub criteria.
Study of photon beam quality tool at magnetic field change in bending magnet
Kim, Jeong-Ho ; Yoo, Se-Jong ; Park, Myeong-Cheol ; Bae, Seok-Hwan ; Kim, Ki-Jin ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 433~439
DOI : 10.12812/ksms.2014.16.4.433
Beam quality is changed about magnetic field of bending magnet. Evaluation of beam quality using PDD(Percentage Depth Dose) at 10cm depth at recommendation of AAPM(America Academy of Pain Medicine). However this evaluation shows fragmentary element. Therefore this study is applied to three value, 10cm divided by 5cm depth PDD, 20cm divided by 10cm depth PDD, 30cm divided by 20cm depth PDD, at change the magnetic field. PDD is measured at magnetic field changed
at 6MV(Mega Voltage), 10MV photon. The plan technique is 3 portal plan using Core-Plan at human pelvic phantom. Conventional and presented methods are compared at maximum and minimum dose. The presented method increased discernment of relieve the unequal distribution and energy area than conventional method. Henceforth, application of presented method will be considered. Development of energy measurement method and detector miniaturization will be needed about continuous study.
A Study on Odor-Savor and Microbiological Changes of Mineral Water Depending on the Storage Period
Lee, Woo-Sik ; Seo, Kwang-Seok ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 441~449
DOI : 10.12812/ksms.2014.16.4.441
As people seek a healthy, wealthy, and quality life more than before, interests in mineral water are picking up and the consumption continues to increase accordingly. In an experiment to examine changes in the water quality after mineral water on the market was kept indoor and outdoor for four weeks, there seemed to be no problem in external appearance. Water kept in an outdoor storage contained more odor-savor than water kept in an indoor storage. Odor was not detected in 90% of the sample, and savor not in 80% of it. As for the mechanism of odor-savor generation, the elution of chemical substances from a container may be taken into consideration. In general, odor and savor have turned out to be in close correlation to each other. The average number of bacteria in the sample mineral water was
, and such factors as area of storage and ozone post-treatment did not cause significant effects on the reproduction of common microbes. Hence, it is thought that strict regulations on a production process and reduction of the period of circulation will contribute to customers consumption rates.
An analysis on homecoming support project by employment expiration of foreign workers
Yu, Jae-Sub ; Lee, Seung-Eun ; Kang, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 16, issue 4, 2014, Pages 451~459
DOI : 10.12812/ksms.2014.16.4.451
To solve the serious problem of insufficient manpower in medium and small scaled companies, our country allows introduction of foreign manpower for 5 business types such as manufacture industry, service industry, etc. and there are 226,825 people who entered by employment license system(E-9) in Sep. 2013. However, according to the results of investigation "actual status and difficulties of foreign manpower's employment of medium and small scaled manufacturing companies" of KFTA in 2013, 36.4% of respondents responded that current scale of introducing foreign manpower is insufficient to solve difficulties of insufficient manpower in industrial world and 37.7% of them responded that the quarter of new employment is insufficient. So, they hope that current quarter system of foreign manpower can be abolished. Meanwhile, introduction scale of foreign manpower was decided by 53,000 people so as to solve enterprise difficulties in manpower and vitalize economics this year, but illegal aliens are 39,623, more than 17.5%, in Sep. 2013 after employment expiration. Therefore, it becomes serious social problem. Government displays various support businesses so that foreign workers after employment expiration can return to their homeland legally. This thesis intends to find measures to maintain royalty for our country and support their smooth resettlement through the analysis on homecoming support business of foreign workers.