• Korean Journal of Social Welfare
• /
• v.61 no.3
• /
• pp.179-204
• /
• 2009

This paper attempts to explain the effect and application of action research in Korean social welfare research and discusses utilities of action research in the broadening and deepening social welfare body of knowledge within Korea. First, this paper examines the concepts, characteristics, and relevant literatures of action research. Second, this paper attempts to explain the effect, meanings, and application of action research in Korean social welfare research with examples from study on development of user involvement manuals for the disabled residential facilities for the first time in Korea. Third, this paper discusses utilities of action research in broadening and deepening social welfare knowledge body in Korea. In discussing the utilities, this paper maintains that action research can be more properly utilized for research methods to decrease the gab of research and social work practice. Finally, this paper highlights that 'many ways of knowing' exist in social science and it should be considered more sincerely in the arena of Korean social welfare research in order to more solidly develop the knowledge body of social welfare and practice in Korea.

• Journal of Korea Multimedia Society
• /
• v.15 no.1
• /
• pp.148-165
• /
• 2012

Applying maintenance simulation using virtual mockup in product design phase enables maintainability test before prototyping physical products, and it is expected to reduce product development costs. The simulation results can be reused as contents of service manuals and RAM (Reliability, Availability, Maintainability) analysis data. Maintenance simulation should provide realistic representation of physical property of virtual product, assembly relation between parts and manipulation process to verify feasibility of product design. The simulation system should be extended to collaborative virtual environment to perform collaborative maintenance procedures. In this paper, the three layered system architecture and the physics based collaborative interaction technique are proposed to extend current maintenance simulation into collaborative virtual environment. The proposed system was implemented as ViMMS (Virtual Mockup Maintenance Simulation system), and compared with case study results of VADE (Virtual Assembly Design Environment). As a result, the ViMMS encompassed broader range of maintenance tasks by using physics based collaborative interaction technique.

• Journal of the Ergonomics Society of Korea
• /
• v.36 no.5
• /
• pp.579-587
• /
• 2017

Objective: The purpose of this study is to measure the workload of Korea coastal ship crew members, to investigate whether they are following work-break time regulations and to identify the main causes of their workload. Background: According to the US Coast Guard, about 33% of human casualties are reported to be due to fatigue, and 30% of marine casualties reported by the British Marine Accident Investigation Agency (MAIB) are attributed to crew fatigue. But the coastal ship are not managed for business hours and breaks despite the harsh environment. Method: The workload of duty crew members on the 100 domestic coastal vessels was measured. It was also investigated whether they are following domestic and international work-break time regulations. Finally, the marine accidents resulted from the fatigue of the crew was analyzed. Results: As a result of workload analysis, the workload on the 42~62% of the vessels exceeded the standard of working time on the related regulation. The workload increased with the number of inbound and outbound ports. Especially, in the system where there are two seafarers, the workload exceeded the working time requirement. As a result of the marine accidents analysis on 100 vessels, it was found that collision and grounding occurred due to fatigue, workload and drowsiness in 7 marine accidents out of 30 marine accidents. Conclusion: It is necessary for the shipping companies to introduce an operation management manual for the management of the crews' workload and reasonable crew arrangement. It is also required for crew members to easily record work times and for shipping companies to manage the record. It would be possible to prevent many marine accidents by providing adequate rest to the crews and flexibly adjusting their working hours. Application: The results of this study can be used as fundamental data to manage crews' fatigue and to make job management manuals.

• Journal of Digital Convergence
• /
• v.13 no.11
• /
• pp.109-118
• /
• 2015

Brand integration is necessary for the effective development and implementation of local brand. However, integrated brand can't be successfully used without 2 key points, concrete foundation and effective use of the brand image. The brand integration research was operated by selecting eight states council and 10 local cities that have more than one million populations. In states side, seven of eight states were experiencing lack of effective development and controlling process. On the other hand, integration effort need to be made in 10 city brands, though brand controlling process was not bad. It seems that brand improvement process that can express variety of important meaning in one simple integrated brand image is necessary. Therefore, we need to make effort to develop those integrated brands by setting brand strategies that could easily deliver wide range of meanings with simple image and making manuals to systematically manage them.

• Journal of Korean Clinical Nursing Research
• /
• v.23 no.3
• /
• pp.361-375
• /
• 2017

Purpose: This study was conducted to update the existing nursing practice guideline for intravenous infusion guidelines according to the evidence-based practice guideline in South Korea. Methods: Guideline update process was performed using 22 steps according to the manuals developed by NICE and SIGN. Results: Updated nursing practice guidelines for the intravenous infusion were consisted of 23 domains and 322 recommendations. The number of recommendations in each domain were 4 for general instruction, 12 for vascular access device selection, 20 for site selection, 9 for insertion, 54 for stabilization, 21 for maintaining patency, 4 for blood sampling, 33 for exchange and removal, 28 for add-on device selection, 28, 72 for infusion related complications, 56 for infusion therapies, 7 for education, and 2 for documentation and report. There were 15.9% of A, 30.2% of B, 53.9% of C in terms of grade recommendations. A total of 178 (51.6%) recommendations were newly developed and 24 previous recommendations have been deleted. Conclusion: Updated nursing practice guideline for intravenous infusion was expected to be an evidence-based practice guideline for intravenous infusion in South Korea. This guideline is suggested to be disseminated to clinical nursing settings nationwide to improve the efficiency of intravenous infusion practice.

• Steel and Composite Structures
• /
• v.24 no.2
• /
• pp.213-226
• /
• 2017

The behavior of building industry metal sheeting under shear forces has been extensively studied and equations have been developed to predict its shear stiffness. Building design engineers can make use of these equations to design a metal deck form bracing system. Bridge metal deck forms differ from building industry forms by both shape and connection detail. These two factors have implications for using these equations to predict the shear stiffness of deck form systems used in the bridge industry. The conventional eccentric connection of bridge metal deck forms reduces their shear stiffness dramatically. However, recent studies have shown that a simple modification to the connection detail can significantly increase the shear stiffness of bridge metal deck form panels. To the best of the author's knowledge currently there is not a design aid that can be used by bridge engineers to estimate the stiffness of bridge metal deck forms. Therefore, bridge engineers rely on previous test results to predict the stiffness of bridge metal deck forms in bracing applications. In an effort to provide a design aid for bridge design engineers to rely on bridge metal deck forms as a bracing source during construction, cantilever shear frame test results of bridge metal deck forms with and without edge stiffened panels have been compared with the SDI Diaphragm Design Manual and ECCS Diaphragm Stressed Skin Design Manual stiffness expressions used for building industry deck forms. The bridge metal deck form systems utilized in the tests consisted of sheets with thicknesses of 0.75 mm to 1.90 mm, heights of 50 mm to 75 mm and lengths of up to 2.7 m; which are representative of bridge metal deck forms frequently employed in steel bridge constructions. The results indicate that expressions provided in these manuals to predict the shear stiffness of building metal deck form panels can be used to estimate the shear stiffness of bridge metal deck form bracing systems with certain limitations. The SDI Diaphragm Design Manual expressions result in reasonable estimates for sheet thicknesses of 0.75 mm, 0.91 mm, and 1.21 mm and underestimate the shear stiffness of 1.52 and 1.90 mm thick bridge metal deck forms. Whereas, the ECCS Diaphragm Stressed Skin Design Manual expressions significantly underestimate the shear stiffness of bridge metal deck form systems for above mentioned deck thicknesses.

• International Journal of Highway Engineering
• /
• v.17 no.4
• /
• pp.89-98
• /
• 2015

PURPOSES : This study evaluated the feasibility of implementing protected-permissive left-turn (PPLT) signals at three-leg signalized intersections. METHODS: A three-leg signalized intersection with permissive left-turn was first selected. A VISSIM simulation model was constructed using data collected from the test site. The VISSIM network was calibrated by adjusting related parameter values in order to minimize the difference between the simulated and surveyed critical gap. The calibrated network was validated by the number of waiting left-turning vehicles per cycle. Finally, the mobility and safety measures were extracted from simulation runs in which permissive, protected left turns as well as PPLTs were realized based on diverse traffic volume scenarios. RESULTS : The mobility-related measures of effectiveness (MOEs) of the case with PPLT outperformed the other two left-turn treatment scenarios. In particular, the average waiting time per cycle for the left-turn vehicles in the case with PPLT was reduced by 30 s. The safety-related MOEs of the case with PPLT were somewhat higher than those in the case with protected left-turns and much higher than those in the case with permissive left-turns. CONCLUSIONS : Based on the mobility- and safety-related MOEs generated from the VISSIM simulation runs, the use of PPLT seems to be feasible at three-leg signalized intersections where the left-turn is permissive and a pedestrian signal exists at the conflicting approach. However, in order to use the PPLT in earnest, it is necessary to revise the road traffic act, traffic signs, and related manuals.

• Journal of Agricultural Extension & Community Development
• /
• v.22 no.2
• /
• pp.205-219
• /
• 2015

The purpose of this study was to develop a participatory education program of farmer's safety and health. After investigating the concept and status of agricultural safety and health to identify the problem of farmer's safety and health, we made the model in 3 steps, consist of analysis, design, and development, based on the instructional system design and the participatory instructional method. We also applied the participatory instructional method to the program to facilitate a change in practice by making farmers understand the contents. The findings of this study revealed the followings: 1) we developed the education program focused on characteristics of farmers as learners; 2) the education program was developed based on the model for developing education programs and the specific procedures that we made up; 3) we designed the program in modules to increase the availability; 4) we raised the content validity of the learning contents in the safety and health education program targeting farmers; 5) manuals and supplementaries for teachers were developed from learner's textbooks.

• Journal of Environmental Science International
• /
• v.24 no.12
• /
• pp.1551-1558
• /
• 2015

In Korea, many drinking water treatment plants (DWTPs) have introduced and are going to introduce biological activated carbon (BAC) process to treated dissolved organic matter (DOM) in water which are difficult to control by conventional water treatment processes. Even though more decade have passed since introduced BAC in Korea, most of BAC operating method was followed to the modified sand filter operating manuals. In case of BAC backwashing, many DWTPs set the periods of backwashing about 3~5 days. In this study, we have collected data to set the proper BAC backwashing periods from both pilot-plant and real DWTPs. We had measured heterotrophic plate count (HPC), turbidity, water temperature, dissolved organic carbon (DOC) and headloss from just after backwashing to the next backwashing time for two years. Considering water quality factors, the BAC run time from backwashing to the next backwashing could extend more 30 days without water quality deterioration if the head loss do not reach the limited level which depends on each BAC facilities' condition. It means the BAC treated water could be saved in the proportion of extended the backwashing period to the existing backwashing period.

• Journal of Korean Elementary Science Education
• /
• v.28 no.3
• /
• pp.277-291
• /
• 2009

This study is intended to develop plant inquiry instruction using Rapid-cycling Brassica rapa (RcBr) whose life cycle is relatively short, and to apply it to the elementary science instruction of the 4th grader and examine their plant concept, science inquiry skills and science-related attitudes. The materials were consisted of laboratory manuals for the students as well as teachers' guide. By observing the life cycle of RcBr, students can experience the conceptual learning of the plant's life cycle. In addition, this study investigated the cause of change in science inquiry skills and science-related attitudes by interviewing 12 students. It has shown that plant inquiry instruction using RcBr has meaningful effects on students' understanding of the plant concept, improving students' science inquiry skills, and changing students' science-related attitudes. Students who showed improvement in science inquiry skills were able to answer questions regarding science knowledge correctly. And students whose science related attitudes were improved had a positive attitude on cultivating RcBr. Students told that RcBr was an interesting and good material to inquire plant. Because of its small size and its relatively short life cycle of RcBR, it should be a desirable plant material for the inquiry instruction which can give rise to useful and meaningful results for the elementary school students.