A roadmap for Electrical Safety Technology has been designed based on the study that has been contributed by the specialists, professors and researchers in electral safety field. The roadmap is divided into five major fields including, for instance, the electrical fire accidents roadmap. The other four roadmaps are for electrical shock accidents, electrical facilities accidents, electrical safety policies and electrical safety culture-education, respectively. Each roadmap has a purpose, a scope, and a technical characteristic. Following the roadmaps can result in significant reduction of electrical fire accidents, electrical shock accident victims and so forth. The result can also be utilized in guiding the planning and development of the future electrical safety technology.
A studies wish to present safety assessment table that is consisted of safety check-up, safety education, safety management for worker's safety management assessment about unit process. And safety management level was survey through case study that use safety assessment table. Safety management assessment table is improved safety management level of unit process, and is developed safety management system by worker confirms assessment items and improves problem.
This paper proposes a maintenance method to integrate worker's safety concerns into the process activities of the manufacturing system and it is to be considered as a part of the scope of maintenance engineering. The proposed method incorporates worker's health and safety considerations into maintenance engineering in each of the manufacturing process using reliability analysis. It can help to make a better planning and implementation of maintenance activities for the manufacturing system.
This paper analyses the effect of parameters on the consequences of the unconfined vapor cloud explosion accident (UVCE) by the release of heavy gas (xylene vapor). Simulation results showed that the overpresure was increased with the increase of the release hole diameter and with the decrease of the interested distance and the wind speed. While, the overpresure was not nearly affected by the release height, weather and environmental conditions. From the results of the consequence analysis and analysis of affecting the consequences of UVCE, the emergency plan should be established taking into account these parameters.
The state and its proper countermeasures of unreported industrial accidents in Gyungbuk area was investigated throughout a survey research. The goal of the study was to identify major factors that affect the number and causes of unreported accidents. Results from the survey indicated that significant number of unreported accidents exists especially in the small and medium sized industries. Types of the accidents, amount of increase in the insurance cost and level of the governmental enforcement due to the accidents were the major factors for deciding whether to report or not. These results suggested more compromising actions have to be taken by the government for revealing the present but unreported industrial accidents. A more efficient way for preventing the industrial accidents can be considered on the basis of true understanding about real industrial accident statistics.
The purpose of this study is to collect and analyze their opinions to found solutions for reducing safety accidents since it is important to educate the students to recognize the importance of safety. We surveyed 350 students from mechanical and metal engineering departments of an engineering high school located in Seoul, and divided them in two categories and asked them about prevention of safety accidents in laboratories. It is found that further directions and educations are needed for the students as to emergency measures in case of safety accidents. Safety education before laboratory classes is crucial, helpful and effective for prevention of safety accidents. Facility factors that further education is needed for students who don't experiments in orderly manner.
신뢰성이란 단기간에 측정되는 성능과는 다른 지표로서 흔히 장기간에 걸쳐 평가되는 품질의 척도이다. Oil Cooler는 공작기계(machine tools)의 주축 및 구동부 등에서 발생하는 열 변형을 제어하는 장치로서 공작기계의 신뢰성 향상을 위해서는 oil cooler의 신뢰성 개선이 이루어져야 한다. 본 연구에서는 oil cooler의 신뢰성 개선을 위해 고장률 데이터베이스를 이용한 신뢰성 예측과 이를 통한 취약부품 분석을 실시하고 신뢰성 시험기를
In general, it is fact that most educational institutions have lots of problems about shift of education facility and equipment because of insufficient budget. However, most high school girls live a lot of period in the school and most of them wear student uniform. Thus, it is necessary that educational environment has to be improved by actual body size of high school girls. The main objective of this study is to provide numerical guideline for the improvement of educational environment about high school girls (17~19 years) through comparison and analysis on physical standard of nation (report published in 1997). The sample for this work chosen from data which were collected and measured by Size Korea during two years (2003~2004). In order to analyze feature of the somatotype of high school girls, analysis was performed about 734 subjects on 25 body parts such as height (7 parts), width (4 parts), thickness (4 parts), circumference (5 parts), length (4 parts) and body weight. For the specific comparison on somatotype, Rohrer index and Mollison's comparison graph were used. The result of this study can be utilized in various fields such as design of classroom, student uniforms, facilities and equipments for education, etc.
Recently, many companies knock themselves out to reduce logistics costs. However, they have reached the limit on cost reducing by improving the manufacturing process. In addition, Customers are growing more and more particular about the quality. Also the firms, which provide foods & beverages manufacturer with vacant receptacles and bottles, make zealous efforts to save costs. They have tried to seek for the resolution by own investment and improving system, but they haven't found certainly substitutions. In this study, we analyze problems of the vacant receptacles manufacturers and present introduction of pool system by standardization of Packing Resource. This PPS(Packing resource Pool System) will enable to reduce logistics cost that is challenge for the receptacles & bottles manufacturers, be helpful reducing environmental disruption which are the pollution of alien substances, wasted paper sheets because the system cleans retrieved Packing resources and reuses them.
This paper was concerned about design and implementation of supply chain management for auto-part company by adopting a UML(Unified Modeling Language). The part of SCM and e-business have interested by larger company, researcher and academic professor. There has been known about a little implementing SCM and it's initiatives for SME(small-medium sized enterprise). We, in this paper, dealt with design and implementing the SCM on supply chain auto part SMEs. The UML is a standard language for specifying, visualizing, constructing, and documenting the artifacts of software systems. It simplifies the complex process of software design, making a blueprint for the SCM implementation. In this paper, we also adopt some methods for the systematic system analysis, design, and implementation by applying UML to a SCM system.
The purpose of this study is to examine the actual condition of environment conscious logistics system which is essential to make material recycling economic society. Environment conscious logistics management which means simple recycling tends to promote material reduction, reuse and recycling. We have made some case studies about advanced environment conscious logistics system. To examine Korean companies,' environment-conscious logistics practices we made a survey form which contains 81 questions and asked companies to respond. Thus we have the analysis from the survey responses. As a result of this study, we propose the way of constructing environment conscious logistics system in Korea.
Nowadays, globally high-grade companies have done their best for increasing their competitive power through a many kinds of method in incisive competition for making certain of a pacesetting position. Among the rest, Six Sigma have been the best methodology of improving process and have proven to be effective by the result of improving process in many of manufacturing business, however, it has not obtained excellent results in the transaction business. In transaction business, a 30~50% costs in total costs is generated by slow-speed working and reworking. The slow processes decrease the quality and increase the cost, which decreases customer satisfaction, and finally the income is decreased. All of them are so called wastes in processes. For this, adopting of lean six sigma methodology in process management can eliminate the wastes and reduce the variation. 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 goal of this study is to trace 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.
Payment and security requirement are playing an increasingly critical role in RFID system, allegedly the core of the ubiquitous, especially in logistics. Therefore, security technology has been playing essential role gradually unlike the past when only the perception of equipment was considered important technology. The current encoding system allows the access only to the user who has the secret key. Many encoding algorithm has been studied to ensure the security of secret key. Security protocol is the most typical way to authorize appropriate user perception by using the data and secret key to proceed the encoding and transmit it to the system in order to confirm the user. However, RFID system which transmits more than dozens of data per second cannot be used if the algorithm and protocol of the existing wired system are used because the performance will degrade as a consequence. Security protocol needs to be designed in consideration of property of RFID and hardware. In this paper, a protocol was designed using SNEP(Sensor Network Encryption Protocol), the security protocol used for the sensor similar to RFID- not the current system used in wired environment- and ECC (Elliptic Curve Cryptography: oval curve encoding), the encoding algorithm.
What is CRM(Customer Relationship Management) means that planning, executing, and re-accessing the marketing strategy based on the customer character by analyzing the material related to customers. That is CRM is a strategy of customer service on the base of data. In the case of the telecommunications and a newspaper, there are restricted application of CRM, because they are provided services by paying a given amount of money within a given period of time. This paper develops CRM model(chum prediction model) that can apply to a newspaper. For model-building, real data were used which were collected from one of the major a newspaper company in Korea. Also, this paper verifies the efficient result.
As competition in manufacturing enterprise is contested, the scope of safely production planning, manufacturing enterprise should ensure, has been reduced. The more upstream of SCM, the more reduction of scope of production planning. As a result, order fluctuation is more sharply contested. Through improving the logistics network, it is best way that the end user's demand information is conveyed to upstream of SCM, but it is difficult in fact. In this paper, it mention the way of robustic adjustment, in the suppliers' point of view, the end user's demand information is dammed up, as they postpone responding the customer's order as a possible. And it will show the result of appling the way, as a case study.
This paper reviewed the relationship between service quality and customer satisfaction, and the moderating effect of gender. Based on the responses from 807 customers who encountered employees in telecommunication industry, the results of multiple regressional analysis showed that all service quality factors have positive relationships with customer satisfaction. The results of moderating analysis showed that empathy and tangibility have positive interactive-effects on customer satisfaction with gender. With increasing of empathy and tangibility, female customers have been more satisfied than male customers.
The authors used association rules and patterns in sequential of data mining in order to raise the efficiency of engineering changes. The association rule can reduce the number of engineering changes since it can estimate the parts to be changed. The patterns in sequential can perform engineering changes effectively by estimating the parts to be changed from sequence estimation. According to this result, unnecessary engineering changes are eliminated and the number of engineering changes decrease. This method can be used for improving design quality and productivity in company managing engineering changes and related information.
공장의 생산력을 향상하기 위하여, 현재 많은 공장에서는 동시에 TPM & TQM을 진행하고 있다. 이러한 활동을 통하여 제품의 품질을 향상하고, 원가를 절감하고, 납기를 단축하며, 생산의 유연성을 확보한다. 본 논문은 한국의 제조업에 대한 설문조사를 통하여 TPM 및 TQM과 생산 실행 요인 사이의 관계를 분석함으로써, 적극적으로 제조업에서 생산력을 향상하고 촉진할 수 있는 요인을 얻는 것이다.
Over the fast few years, web-based e-Learning have made remarkable progress. According to advance of e-Learning, the evaluation of e-Learning effectiveness and success model become more important. This study had a focus on the effect of system characteristic of e-Learning systems and self-efficacy on learning performance. Data has been collected from 192 person experienced in e-Learning. The questionnaire method was adopted to collect the data for this study. The research was conducted by using SPSS 12.0 and AMOS 4.0. The research results and suggestions of the study are as follow. First of all, system quality and information quality of e-Learning system had positive relationship with perceived usefulness. Second, information quality was related positively to user satisfaction. Third, perceived usefulness was positively connected with user satisfaction. Fourth, user satisfaction and self-efficacy had relation to learning performance.
Dependent models in quality statistics are classified as serially autocorrelated model, multivariate model and dependent sample model. Dependent sample model is most efficient in time and cost to obtain samples among the above models. This paper proposes to implement parametric and nonparametric models into production system depended on demand pattern. Nonparametric models have distribution free and asymptotic distribution free techniques. Quality statistical models are classified into two categories ; the number of dependent sample and the type of data. The type of data consists of nominal, ordinal, interval and ratio data. The number of dependent sample divides into 2 samples and more than 3 samples.