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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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Korea Safety Management and Science
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Volume & Issues
Volume 11, Issue 4 - Dec 2009
Volume 11, Issue 3 - Sep 2009
Volume 11, Issue 2 - Jun 2009
Volume 11, Issue 1 - Mar 2009
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Development of the Judgment Method of the Occupational Safety & Health Management System for Small & Medium Enterprises
Jang, Seo-Il ; Ha, Jeong-Ho ; Lyu, Bo-Hyuk ; Kwon, Hyuck-Myun ; Kim, Tae-Ok ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 1~9
The present management of the domestic and international advanced enterprises is transferring the systems and the regulations to the prevention system management. Expecially, KOSHA (Korea Occupational Safety & Health Agency) in Korea has supported to set up the OSHMS (Occupational Safety & Health Management System) by KOSHA 18001 since 1997. But small & medium enterprises (SMS) has many difficulties to set up the OSHMS system because of limited natural and human resources. In this study, the rating system as a judgment method of an OSHMS based on the certification standard of the OSHMS, which was suggested in previous study, was developed for SMS to adopt voluntarily the OSHMS, certify KOSHA 18001, and improve the safety and health level.
A Study on a Job Preference Analysis of Domestic Using Innovation Decision Making
Yang, Kwang-Mo ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 11~18
Unless certain limitation is increasing the number of the job type will be inevitable in the future because of development of industry, adaptation on speedy life style, and leisure oriented nuclear family style. In this paper, a prospective model of supply and demand of work force has been developed basing on various categories of industries and patterns about employees to look over efficient supply and demand of work force suiting employment of work force policies. In this paper, after Analyzing job preference, we have noticed a more stable job system and the results showed significant improvements over the existing job system.
A Process Model for the Systematic Development of Safety-Critical Systems
Yoon, Jae-Han ; Lee, Jae-Chon ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 19~26
It is becoming more and more important to develop safety-critical systems with special attention. Examples of the safety-critical systems include the mass transportation systems such as high speed trains, airplanes, ships and so forth. Safety critical issues can also exist in the development of atomic power plants that are attracting a great deal of attention recently as oil prices are sky-rocketing. Note that the safety-critical systems are in general large-scale and very complex for which case the effects of adopting the systems engineering (SE) approach has been quite phenomenal. Furthermore, safety-critical requirements should necessarily be realized in the design phase and be effectively maintained thereafter. In light of these comments, we have considered our approach to developing safety-critical systems to be based on the method combining the systems engineering and safety management processes. To do so, we have developed a design environment by constructing a whole life cycle model in two steps. In the first step, the integrated process model was developed by integrating the SE (ISO/IEC 15283) and systems safety (e.g., hazard analysis) activities and implemented in a computer-aided SE tool environment. The model was represented by three hierarchical levels: the life-cycle level, the process level, and the activity level. As a result, one can see from the model when and how the required SE and safety processes have to be carried out concurrently and iterately. Finally, the design environment was verified by the computer simulation.
A Study on Actual Conditions of Muscular Strength in Korean Electronics Industry
Park, Jung-Sik ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 27~32
Human physical activity to lead daily life is performed by a variety of muscular activity strategies. These strategies can be influenced by characteristics, difficulty and muscle fatigue of work. Therefore this study examines muscular strengths (grip and back strength) of workers engaged in electronics industry in Korea, compares them to mean value of muscular strength by sex and age, accumulates related data and then aims to develop improvement methods of working environment and prevention/management program.
Deduction of Main Hazard Cause to the Progress of Iron Work for Accident Analysis
Hong, Sung-Man ; Park, Peom ; Sun, Su-Bin ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 33~40
Steel and iron manufacture works exist that many latency risk as melting liquid of high temperature, work of high place, and so on. Once in a while, the accident case make use of basic data for latency risk analysis in a place of business. In this paper, we investigated the cause of the accident in steel an iron works. The result, we came across that many latency risk in steel and iron manufacture works. The main type of risk are fall, narrow, come flying, etc. Most of the latency risk type are repetition and conventional accident. Accordingly, steel and manufacture works must prevent to repetition and conventional accident.
Risk Assessment for Heavy Metal Pollutants of Abandoned Mines Using Statistical Techniques
Dho, Hyon-Seung ; Kim, Sung-Duk ; Lee, Seung-Joo ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 41~48
The risk assessment for heavy metal pollutions were analyzed by using statistical techniques including correlation and cluster analyses. The contamination data in this investigation obtained were from the Chungcheongnam-do abandoned mines. The descriptive statistical analysis showed that the values of Pb and Zn were relatively higher than other heavy metal values. The detection of heavy metals by distance from abandoned mines within 1,000m were mostly As, Cd, Pb, and Zn. It was noted, especially, that Zn was even detected at 4,000m The results of coefficient correlation showed that Zn to Cd was the highest values. The cluster and dendogram analyses were generated. The results showed the two clear groups by heavy metal characteristics.
An Inquiry about the statistical meaning on the fuel gas accidents by ANOVA
Kim, Jung-Hoon ; Jeong, Ji-Yeon ; Lim, Si-Yeong ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 49~56
The quantity of the fuel gas consumed is trending upwards because it can be easily delivered but isn't deteriorated and doesn't have any environmental pollution. Though there are many advantages to use the fuel gas, it can be hesitated to consume more gas because of its explosiveness and combustibility. So paying more attentions to prevent the fuel gas accidents is required. In this paper, we examine the present situation data about the fuel gas accidents and analyze them statistically using ANOVA. we confirm that there is an acceptable difference between the mean values of accidents classified by the kind of gas, the cause, the type and the place but isn't by month. It is expected that our result can be applied as preliminary data when mapping out a strategy for preventing the fuel gas accidents.
Development of Municipal Vehicle Safety System
Lee, Man-Soo ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 57~61
Garbage cause an environmental pollution, unsightly mess, fouls an odor, and unpleasant feeling. Various measures to solve the problems are studying. And the garbage are collected and treated by the street cleaner. Street cleaner is working for long time in the street from dawn to the night. And many kind of accidents are aroused, like traffic and crushing accident by garbage truck. This kind of accidents is increased every year. To prevent the accident, street cleaner wear a fluorescent light uniform But a count measures for the fallen accident and crushing accident from the garbage truck are insufficient. In addition, a street cleaner dose not like to wear a working uniform because of inconvenience. Therefore this study try to find a safety system of garbage truck for reducing measure of accidents of street cleaner.
Difference of Occupational Safety and Health Communication between Domestic and Foreign Corporations
Kim, Wang-Bae ; Rhee, Kyung-Yong ; Lee, Soo-Chul ; Seo, Nam-Kyu ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 63~71
Safety is totally established through not only legal regulations and system but the establishment of safety culture. As a foundation of safety culture, safety and health communication is the essential condition. Therefore, in the case of researching safety culture the communication network of a organization is a crucial factor. This study has analysed the structure of occupational safety and health communication between domestic and foreign corporations comparatively by the statistical analysis. The occupational safety and health communication is composed of four sub-dimensions: general communication in working site, using safety information communication, communication with the board of directors, and communication with labor union. The nationality of corporations influences the safety communication significantly except for communication with labor union. Consequently it is possible to infer that the nationality of corporations is a significant factor for safety communication network.
Development of a Care System for Older People Living Alone Using the RFID Technologies and the Living Informations
Lee, Kang-Woo ; Shinn, Seong-Whan ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 73~78
In this paper, we developed the care system for older people living alone using the RFID technologies and the living informations. The care system store living informations, extracted through a unconstrained detection method by the RFID tags and readers, into a monitering server. The unconstrained detection method improved a weakness of existing systems that detected a living informations through an infrared sensor, ultrasonic sensor, camera, consumed quantity of the tap water or gas. The result of this study will playa very important role, as a part of a composite older-welfare services. Also, in the future, accumulated living informations will be allowed for a health data of older peoples.
Effects of Box Color and Precision Demand on the Muscles' Recruitment Pattern in Repetitive Lifting Tasks
Song, Young-Woong ; Lee, Wook-Gee ; Kim, Sang-Ho ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 79~85
In this study, the effects of psychosocial stress (box color and precision demand) on muscle activity were evaluated in laboratory setting. Eight subjects performed sagittally symmetric lifting tasks. Box color (yellow, black), precision demand (yes, no), and box weight (5%MVC, 10%MVC, 15 %MVC) were varied and surface EMG signals from seven muscles(medial deltoid right, biceps brachii right, lateral triceps right, latissimus dorsi right, erector spinae right, external oblique right, internal oblique right) were recorded. EMG signals were band-pass filtered(
), rectified, RMS smoothed and normalized (NEMG). Analysis of variance tests were conducted on the total NEMG (TNEMG: the sum of the seven muscles' NEMGs) and on the individual muscle's NEMGs. Box color had no effect on the TNEMG and on the seven muscles activities(p>0.05). When precision demand was required at the end point of lifts, the mean NEMG showed higher values than no precision demand conditions: TNEMG (14% increase) and medial deltoid(40% increase), biceps brachii(10% increase), lateral triceps(26% increase), latissimus dorsi(25% increase) muscles. Those increases showed more conspicuous as the box weight increased in the muscles of medial deltoid, lateral triceps, and latissimus dorsi.
A Study on the Rotary Control Stereotypes of a Driver Information System
Park, Tung-Chul ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 87~94
Today's driver information system often features a rotary control type as a main controller for menu navigation. Population stereotype should be clearly understood in designing those systems to minimize the misunderstanding by the operator. This paper investigates stereotypes for rotary controlled menu interfaces and influences of contributing principles. A human factors experiment was conducted using various configurations of control-display layouts, cursor shapes/positions, and movement directions. The results showed that the control should be on the left of the display, with a rightward icon on the right side of the cursor, in order to match the stereotype. Regression analysis indicated that Warrick's principle was the most influential principle, followed by Icon shape, Icon position, Clockwise away, and Clockwise up principles. This study provides valuable information to designers of menu-based systems such as driver information systems and main control rooms that uses rotary controls.
A Study on the Effect of evaluation characteristics of Information Technology e-Service Quality on usage perception and intention
Kim, Yong-Beom ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 95~103
Recently the information system introduction and the application which use the computer are increasing. The efficient operation of information system helps corporations to improve productivity, customer service and corporate competitive power. SaaS(Software as a Service), which is the developed type of outsourcing in the area of information technology, is to use standardized and packaged application by hosting from the outside of enterprise. SaaS is not developed yet as much as people's interest about that in the initial stage, but its related technology and service capacity are accumulated after repeated trial and error, and it's ready to activate the industry. In the area of information system, studies on the measurement of service quality were followed. But there is little study on service quality measurement in the field of SaaS(Software as a Service). The purpose of this study was to divides the SaaS with e-SERVQUAL and it consider the relationship with the perceived recognition and the usage intention. According to this, variables of traditional research were rejected because SaaS is not developed yet in Korea. But information had a strong effect on perceived recognition. Therefore, business related with in SaaS must have provided a correct information about various applications.
A Product Family Knowledge Management Framework using the Semantic Web
Seo, Kwang-Kyu ; Ahn, Beum-Jun ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 105~112
A Deterministic Inventory Model with an Inventory-Level-Dependent Demand Rate under Day-terms Supplier Credit in a Supply Chain
Shinn, Seong-Whan ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 113~119
A study on The Process Improvement of Logistics based on The Lean Six Sigma Methodology
Nam, Ho-Ki ; Park, Sang-Min ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 121~129
Today, many companies will be isolated in competition if they do not have competitive power to overcome quick change and big crisis of market. Nowadays, globally high-grade companies have done their best for increasing their competitive power through a many kinds of methods in keen competition for making of pacesetting position. This study focuses on distribution with the domains like capacity, layout, amount of location, assignment of product, operation procedure and operation rule in order to improve these domains, we make a further application of eight analysis ways based on DMAIC method for improving operation of processes of distribution center as the third profit source. The purpose of this study is to seek an approach that can easily adopt of Lean Six Sigma in operational management of distribution center by a kind of data, analysis method and template.
An Population Management Genetic algorithm on coordinated scheduling problem between suppliers and manufacture
Yang, Byoung-Hak ; Badiru, Adedeji B. ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 131~138
This paper considers a coordinated scheduling problem between multi-suppliers and an manufacture. When the supplier has insufficient inventory to meet the manufacture's order, the supplier may use the expedited production and the expedited transportation. In this case, we consider a scheduling problem to minimize the total cost of suppliers and manufacture. We suggest an population management genetic algorithm with local search and crossover (GALPC). By the computational experiments comparing with general genetic algorithm, the objective value of GALPC is reduced by 8% and the calculation time of GALPC is reduced by 70%.
Distribution Planning for a Distributed Multi-echelon Supply Chain under Service Level Constraint
Park, Gi-Tae ; Kwon, Ick-Hyun ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 139~148
In a real-life supply chain environment, demand forecasting is usually represented by probabilistic distributions due to the uncertainty inherent in customer demands. However, the customer demand used for an actual supply chain planning is a single deterministic value for each of periods. In this paper we study the choice of single demand value among of the given customer demand distribution for a period to be used in the supply chain planning. This paper considers distributed multi-echelon supply chain and the objective function of this paper is to minimize the total costs, that is the sum of holding and backorder costs over the distribution network under the service level constraint, by using demand selection scheme. Some useful findings are derived from various simulation-based experiments.
The improvement directions of Inland Logistics Information System for the Efficient National Logistics
Kim, Dong-Hee ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 149~155
Recently, according to changes of global logistics environment, various issues have been presenting. These issues are including the pursuit of low cost-high added value, the realization of sustainable logistics system, the protection of environment, and the development of ubiquitous techniques. To cope with these environment changes and improve the national logistics system, the government have carried out various logistics policies and pushed ahead development of national logistics information network. But still, from a view-point of national logistics, there are several inefficient elements such as information inconnection and code/data unstandardization. In this paper, the survey result of domestic inland-logistics information system status will be presented and the future developments will be presented for the efficient national logistics.
Heuristic algorithm to raise efficiency in clustering
Lee, Seog-Hwan ; Park, Seung-Hun ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 157~166
In this study, we developed a heuristic algorithm to get better efficiency of clustering than conventional algorithms. Conventional clustering algorithm had lower efficiency of clustering as there were no solid method for selecting initial center of cluster and as they had difficulty in search solution for clustering. EMC(Expanded Moving Center) heuristic algorithm was suggested to clear the problem of low efficiency in clustering. We developed algorithm to select initial center of cluster and search solution systematically in clustering. Experiments of clustering are performed to evaluate performance of EMC heuristic algorithm. Squared-error of EMC heuristic algorithm showed better performance for real case study and improved greatly with increase of cluster number than the other ones.
A study on learning organization to develop employees' vocational competency at small and medium enterprises and improvement of productivity
Lim, Kyung-Sik ; Choi, Byung-Gie ; Jung, Jang-Woo ; Han, Young-Geun ; Kang, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 167~179
In this era of knowledge and information of the 21st century, the source of a nation's competitive power consists of human resources and material resources and the importance of human resources appreciates highly. The number of small and medium enterprises which are the core of national economy covers over 98% among whole domestic enterprises of Korea. Competitive power of small and medium enterprises comes from human resources development. For the development of human resources, small and medium enterprises are trying to expand their learning organizations in the company. The analysis of outcomes of administering the existing learning organizations shows that learning organizations contribute highly to the improvement of the productivity of small and medium enterprises. And the analysis also shows that the participants of learning organizations and middle management and executives who support and encourage them recognize the necessity of learning organizations and that it should be disseminated throughout other enterprises. Therefore government's supports to establish learning organizations in a company are required to expand.
An Analysis on the Economic Validity of the Establishment of R&D Supreme Academy
Lim, Chang-Joo ; Kim, Sang-Yung ; Baek, Nak-Ki ; Oh, Sea-Hong ; Seo, Jong-Hyen ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 181~188
This paper presents the economic validity with the cost/benefit analysis on establishing R&D Supreme Academy. To evaluate the profitability of R&D Supreme Academy, willingness to pay (WTP) is measured by contingent valuation method (CVM) and then the net present value (NPV), internal rate of return (IRR) and benefit/cost ratio(BCR) are calculated. The results of economic evaluation verified that the establishment of R&D Supreme Academy is timely and effective in an economic perspective.
A Study on the efficiency of the MCMC multiple imputation In LDA
Yoo, Hee-Kyung ; Kim, Myung-Cheol ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 189~198
This thesis studies two imputation methods, the MCMC method and the EM algorithm, that take care of the problem. The performance of the two methods for the linear (or quadratic) discriminant analysis are evaluated under various types of incomplete observations. Based on simulated experiments, the effect of the imputation using the EM algorithm and the MCMC method are evaluated and compared in terms of the probability of misclassification and the RMSE. This is done for the various cases of incomplete observations. The cases are differentiated by missing rates, sample sizes, and distances between two classification groups. The studies show that the probability of misclassification and the RMSE of the EM algorithm method is lower than the MCMC method. Therefore the imputation using the EM algorithm is more efficient than the MCMC method. And the probability of misclassification of the method that all vectors of observations with missing values are omitted from analysis is lower than the EM algorithm and the MCMC method when the samples size is small and the rate of missing values is extremely big.
A study of How Internet Telephony Service Quality characteristics Affects Brand attitude : Applying a technology acceptance model
Jung, Kyung-Hee ; Cho, In-Hee ; Joo, Hyung-Joon ; Cho, Jai-Rip ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 199~207
IP Telephony service was restricted to an outgoing call and low quality since the trust domestic IP Telephony service launch of Saerome co. Ltd, in Jan. 2000. However, Interest of IP Telephony service, which is substituted for PSTN, has been highly elated because of the developed equipment softswitch and new technology. This kind of importance and marketing of VoIP are recognized to telecommunication providers. With this trend, they try to administrate customer satisfaction and invest R&D to survive in this hard competition and unexpected change. To achieve this objective, they should try to realize the searching process of the quality decision attribution (QDA). However, there is little research on the aspect of service quality of Internet telephony so far. For this, the investigator established the tangibles, the reliability, the responsibility, the assurance, the empathy, the charge with information sources as core elements. In order to examine the influence of IP Telephony service upon the attitudes toward a brand and the purchase intention.
Evaluation of Measurement Precisions Using Approximate F Tests and EMS in the Gauge R&R Studies
Choi, Sung-Woon ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 209~216
A development in method of evaluating the measurement precisions using approximate F tests and variance components from expected mean square (EMS) is investigated. The research proposes three-factor mixed measurement models with the fixed and random factors. Unrestricted and unconstrained design work was rarely studied, while restricted and constrained designs have been significantly discussed. The unrestricted and unconstrained designs assume to be an independence of interaction. The proposed evaluation method about the measurement precisions can be extended to four-factor random measurement model or mixed measurement model. The study also presents the three evaluation indexes of precisions such as R&RTR (Reproducibility & Repeatability-To-Total Precision Ratio), PTR (Precision-To-Tolerance Ratio), and SNR (Signal-To-Noise Ratio). Numerical examples are proposed to evaluate the approximate F tests with Satterthwaite degrees of freedom and three indexes using the measurement precisions from EMS.
Thermal Characteristics of Polyvinylchloride in Combustion Reaction Using TGA
Seo, Su-Eun ; Kang, Yun-Jin ; Min, Cho-Young ; Bae, Dong-Chul ; Kang, Kyung-Sik ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 217~226
The combustion reaction of polyvinylchloride(PVC) was investigated using a thermogravimetric technique under an air atmosphere condition at several heating rates from 10 to
/min. To obtain information on the kinetic parameters, the dynamic thermogravimetric analysis curve and its derivative were analyzed by a variety of analytical methods such as Kissinger, Friedman, Chatterjee-Conrad, Ozawa and Coats-Redfern methods. The combustion reaction of PVC proceeded in two steps; the first step was caused by the dehydrochlorination process in PVC, and the second step by the combustion of polyene. The comparative works for the kinetic results obtained from various methods should be performed to determine the kinetic parameters, because there are tremendous differences in the calculated kinetic parameters depending upon the mathematical method taken in the analysis.
A Study on Management Performance by ISO/TS 16949 Quality Management System Certification
Park, Jong-Young ; Hong, Jung-Eui ; Kim, Kwang-Soo ;
Journal of the Korea Safety Management and Science, volume 11, issue 3, 2009, Pages 227~237
After enterprise get a certification in acquisition, the core requirements of ISO/TS 16949 standard is pull out the Performance Indicators by process access approach during the settlement and operation of system, and the pulled key performance indicators classified into the customer intention process, support process and management process and analyzed the effect to the management result. This study conducted with following step. Firstly, preceding research, the literature and investigation analysis about process approach method which is the special characteristics of ISO/TS 16949 standard. Secondly, each process of ISO/TS 16949 standard is classified and deduced the key performance indicators followed process access method. Finally, get a enterprise survey data related to improvement of Performance Indicator and analyzed by SPSS statistical software.