• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.3
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• pp.287-293
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• 2017

The purpose of this study is to keep the safety of the car ferry passengers and vessels by investigating and analyzing vessel safety management systems in Korea and China. To this end, we investigated Korea-China car ferries and the current status and causes of global marine accidents corresponding to the sizes of the vessels from Korea and China. Furthermore, we investigated car ferries' crew management and safety management. As a result of the analysis of the ferry accident, the causes of human error and ship's age were the greatest, but the ship's companies showed a negative stance regarding the age restriction. It seems that it is necessary to utilize the near-miss accident reporting system and differentiate the management of ship's aging. Also, it was analyzed that both the ship company and the crew of the ship need to strengthen their awareness of safety management.

• Journal of Cadastre & Land InformatiX
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• v.44 no.1
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• pp.165-177
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• 2014

The KML verification tool supports people who want to produce the highest quality KML file. In other words, it validate that a given KML document is well-formed with respect to XML standard meaning, and conform not only to the KML schema and the specification. Then it's only to notify error code line. People who want to use the KML file written by others would like to know both whether the validity of that file and general summary of feature's location, shape, and number. In this study, we recommended the user-friendly KML validator using OpenLayers and reporting geometries and images of the KML file.

• Korean Journal of Adult Nursing
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• v.27 no.1
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• pp.1-10
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• 2015

Purpose: The objective of this study was to examine patient safety culture (PSC) and patient safety initiatives (PSI) according to IT-based medication errors prevention system which is constructed in this study, and to identify the relationships among system construction, perception to the usage, PSC and PSI. Methods: The subjects were 180 nurses who work at 12 different hospitals with over 300 beds. The questionnaire included the characteristics of participants, a system construction status, the perception to the usage using electric pharmacopoeia (EP), a drug dose calculation system (DDCS), a patient safety reporting system (PSRS) and a bar-code system (BS). The data were collected from July 2011 to August 2011. Descriptive statistics, ANOVA, Pearson correlation and MANOVA were used for data analysis. Results: Systems were constructed in participating hospitals; For EP and PSRS, 83.9%, DDCS, 50%, and BS, 18.3%. The perceptions on the usage of the system were marked highest in BS as 4.54 followed by EP as 3.85. There were significant positive correlations between PSI and EP construction (r=.17, p=.028); PSRS (r=.17, p=.028) and DDCS (r=.23, p=.002). Conclusion: The developed system for improving the user experiences and reducing medication errors was found out well accepted. It is hoped that the system is helpful for PSC and PSI improvement in clinical settings.

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.15-18
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• 2004

In this paper, it is implemented the monitoring system for TV advertisement using video watermark. The functions of an advertisement monitoring system are automatically monitoring for the time, length, and index of the on-air advertisement, saving the log data, and reporting the monitoring result. The performance of the video watermark used in this paper is tested for TV advertisement monitoring. This test includes LAB test and field test. LAB test is done in laboratory environment and field test in actually broadcasting environment. LAB test includes PSNR, distortion measure in image, and the watermark detection rate in the various attack environment such as AD/DA(analog to digital and digital to analog) conversion, noise addition, and MPEG compression The result of LAB test is good for the TV advertisement monitoring. KOBACO and SBS are participated in the field test. The watermark detection rate is 100% in both the real-time processing and the saved file processing. The average deviation of the watermark detection time is 0.2 second, which is good because the permissible average error is 0.5 second.

• Journal of Engineering Education Research
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• v.14 no.2
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• pp.51-59
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• 2011

The wide range of the Freshmen English placement test scores implies the necessity of differentiating classes. However without a careful and detailed plan, there could be trial and error which would cause harmful and complicated troubles to students. This paper will report a case of grouping Freshmen for English classes at the Engineering College of a provincial university. The main procedures include preparing and executing the placement test, grouping classes, preparing and executing a common final test, preparing grading policy, and reporting. Each procedure is going to be explained and evaluated to improve the quality of English classes and the ability of students at the Engineering College.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.56 no.1
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• pp.206-213
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• 2007

In this paper, The monitoring system for TV advertisement is implemented using video watermark. The functions of the advertisement monitoring system are monitoring the time, length, and index of the on-air advertisement, saving the log data, and reporting the monitoring result. The performance of the video watermark used in this paper is tested for TV advertisement monitoring. This test includes LAB test and field test. LAB test is done in laboratory environment and field test in actually broadcasting environment. LAB test includes PSNR, distortion measure in image, and the watermark detection rate in the various attack environment such as AD/DA(analog to digital and digital to analog) conversion, noise addition, and MPEG compression. The result of LAB test is good for the TV advertisement monitoring. KOBACO and SBS are participated in the field test. The watermark detection rate is 100% in both the real-time processing and the saved the processing. The average deviation of the watermark detection time is 0.2 second, which is good because the permissible average error is 0.5 second.

• Journal of Korean Academy of Nursing Administration
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• v.11 no.4
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• pp.371-384
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• 2005

Purpose: The aim of this study was to analysis path model of the research variables. Methods: The subjects of this study were 647 nurses who were working in the 8 general hospitals located in Seoul and Incheon area. The data were collected by self-reporting questionnaires. The data were analyzed using descriptive statistics and path analysis. Results: In the modified path model, overall fitness indexes were $X^2$= 223.27, goodness of fit index=0.90, root mean square residual=0.039, root mean square error of approximation=0.12, non-normed fit index=0.96, and normed fit index=0.90. From the model, among research variables that influence organizational effectiveness motivator, job satisfaction and organizational identification affected directly work performance. In internal marketing factors, paid-leave, communication and reward affected directly motivator. Motivator and hygiene factors affected directly job satisfaction, organizational commitment and organizational identification. Conclusion: With these findings, paid-leave, communication, reward, motivator, job satisfaction and organizational identification were direct or indirect predictors of the work performance. Therefore nursing managers ought to develop internal marketing strategies and motivation enhancing system for nurses based on this path model in order to improve the nursing organizational effectiveness.

• Journal of Korean Academy of Nursing Administration
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• v.13 no.3
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• pp.321-334
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• 2007

Purpose: The objectives of this study were to understand and compare perception and experience between clinical staffs(nurses and pharmacists) and Quality Improvement managers. Method: A qualitative study was conducted with 14 clinical staffs and QI managers who are working at tertiary hospitals in Korea. Interviews were recorded and transcribed for systematic analyses of qualitative data. Results: Most critically, while QI managers acknowledged that establishment of the patient safety culture and reduction of medical errors are urgent tasks for QI effort, clinical staffs don't seem to share such perceptions. All participants agree that staff shortage and no compliance to safety procedures were major reasons for medical error occurrences. Many suggested that an organizational culture where errors were perceived as a systematic problems rather than individual failures or carelessness should be formed to promote voluntary reporting of medical errors. Conclusion: A more systematic effort and attention at the hospital leadership and public policy level should be promoted to constitute societal consensus on the urgence of promoting patient safety culture and more specific approaches to tackle the patient safety problems.

• Proceedings of the Safety Management and Science Conference
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• 1999.11a
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• pp.381-389
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• 1999

One of the objectives of any task design is to provide a safe and helpful workplace for the employees. The safety and health module may include means for confronting the design with safety and health regulations and standards as well as tools for obstacles and collisions detection (such as error models and simulators). Virtual Reality is a leading edge technology which has only very recently become available on platforms and at prices accessible to the majority of simulation engineers. The design of an automated manufacturing system is a complicated, multidisciplinary task that requires involvement of several specialists. In this paper, a design procedure that facilitates the safety and ergonomic considerations of an automated manufacturing system are described. The procedure consists of the following major steps: Data collection and analysis of the data, creation of a three-dimensional simulation model of the work environment, simulation for safety analysis and risk assessment, development of safety solutions, selection of the preferred solutions, implementation of the selected solutions, reporting, and training When improving the safety of an existing system the three-dimensional simulation model helps the designer to perceive the work from operators point of view objectively and safely without the exposure to hazards of the actual system.

• International Journal of Reliability and Applications
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• v.3 no.1
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• pp.1-16
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• 2002

In reliability engineering, the bathtub-shaped hazard rates play an important role in survival analysis and many other applications as well. For the bathtub-shaped, initially the hazard rate decreases from a relatively high value due to manufacturing defects or infant mortality to a relatively stable middle useful life value and then slowly increases with the onset of old age or wear out. In this paper, we present a new two-parameter lifetime distribution function, called the Loglog distribution, with Vtub-shaped hazard rate function. We illustrate the usefulness of the new Vtub-shaped hazard rate function by evaluating the reliability of several helicopter parts based on the data obtained in the maintenance malfunction information reporting system database collected from October 1995 to September 1999. We develop the S-Plus add-in software tool, called Reliability and Safety Assessment (RSA), to calculate reliability measures include mean time to failure, mean residual function, and confidence Intervals of the two helicopter critical parts. We use the mean squared error to compare relative goodness of fit test of the distribution models include normal, lognormal, and Weibull within the two data sets. This research indicates that the result of the new Vtub-shaped hazard rate function is worth the extra function-complexity for a better relative fit. More application in broader validation of this conclusion is needed using other data sets for reliability modeling in a general industrial setting.