• International conference on construction engineering and project management
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• 2015.10a
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• pp.87-91
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• 2015

For construction projects it is imperative that site management gives the highest priority to planning safe site evacuation for all foreseeable emergencies, including earthquakes and typhoons which are often experienced in Japan. This is especially important and even more critical for high risk projects involving underground works, such as Tunneling & Pneumatic Caissons. Based on the safety regulation of underground works, a back-up power supply system must be provided during the construction period at all times. Often, fluorescent lamps with re-chargeable batteries are provided for infrequent emergency cases, however these have a questionable useable life span and thus need careful maintenance and periodical replacement. In this paper we focused on using the phosphorescence materials to indicate the evacuation direction. As a result, it was confirmed that the phosphorescence materials were considered useful in reducing panic and facilitating a controlled evacuation in the event of a total black-out due to power failure.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.11a
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• pp.59-60
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• 2023

Climate change caused by greenhouse gas emissions has become a climate crisis that actually threatens us and is making global efforts to solve it. In response, Korea is carrying out a "Green remodeling" project to reduce carbon emissions generated in the building maintenance stage, which has the highest percentage of all carbon emissions. However, Green remodeling is carried out under emergency supervision at the construction stage, but construction supervisors are often non-professionals, and even experienced site directors have difficulty in implementing actual designs if they do not have experience in Green remodeling construction. Therefore, this study aims to derive priorities between construction and construction focus points for each construction in order to standardize the construction of Green remodeling construction works and derive objective guidelines.

• Journal of the Korean housing association
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• v.26 no.4
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• pp.95-104
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• 2015

Public rental housing in Korea has been initially provided for residential stability of low-income household focusing on solving quantitative insufficiency since 1980s. In the process of early stage of designing and planning public rental housing, qualitative aspects of considering children were not primary concern. This study aims to analyze the priority of environmental improvement of outdoor spaces for children's safety in public rental housing. First, literature review was performed in the reference of local residential safety guidelines, Universal Design, and CPTED guidelines. In each guidelines, common safety planning factors for children were extracted within different types of outdoor spaces. Second, based on literature analysis, residents evaluated importance and satisfaction level by different safety types, outdoor space type, and environmental planning factors. In results, residents evaluated high importance and showed low satisfaction for crime and traffic safety. Through IPA, facilities and parking space was evaluated where improvement is needed for the first priority, and planning factors were mostly concerned with surveillance and safety management system. Result shows general concern of public rental housing residents, about weak facility management and security system, and about socially isolated environment which heightened the fear of crime safety. Overall, poor maintenance of the complex environment and decrepit facilities are constantly raising risk of safety accidents especially for children. Considering residents' concern, environmental improvement should be considered in perspective of not only physical repair, but also facility management and security system.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.45 no.6
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• pp.481-489
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• 2017

Situation awareness means recognizing everything necessary to understand progress in a flight or aircraft maintenance work. Situation awareness is based on more than simply recognizing important about the environment, and it is important to provide the meaning of information in an integrated form. The KHP provides the pilot with integrated situation display for an integrated form of situation awareness and warning that synchronizes the priority based audible signal with the visual signal. Provide integrated display and warning to reduce operator error and enable operators to focus on mission critical tasks and events. This paper introduces the integrated situation display and warning design implemented in the KHP.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.342-347
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• 2002

After the industrial revolution in 20 century, the world are preparing for new revolution that is society with knowledge for a basis such as IT(Information Technology), NT(Nano Technology) and BT(Bio Technology). Recently, NT is applied to various fields that are composed of science, industry, media and semiconductor-micro technology. It has need of IT that is ultra-precision positioning technology with strokes of many hundreds mm and maintenance of nm precision in fields of ultra micro process, ultra precision measurement, photo communication part and photo magnetic memory. Performance test of servo control system that is used ultra-precision positioning system with single plane X-Y stage is performed by simulation with Matlab. Analyzed for previous control algorithm and adapted for modern control theory, dual servo algorithm is developed by minimum order observer, and stability and priority on controller are secured. Through the simulation and experiments on ultra precision positioning, stability and priority on ultra-precision positioning system with single plane X-Y stage and control algorithm are secured by using Matlab with Simulink and ControlDesk made in dSPACE

• Journal of Korea Water Resources Association
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• v.38 no.9 s.158
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• pp.737-746
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• 2005

Optimization is a process that searches an optimal solution to obtain maximum or minimum value of an objective function. Many researchers have focused on effective search algorithms for the optimum but few researches were interested in establishing the objective function. This study compares two approaches for the objective function: one allows a tradeoff among the objectives and the other does not allow a tradeoff by assigning weights for the absolute priority between the objectives. An optimization model using sampling stochastic dynamic programming was applied to these two objective functions and the resulting optimal policies were compared. As a result, the objective function with no tradeoff provides a decision making process that matches practical reservoir operations than that with a tradeoff allowed. Therefore, it is more reasonable to establish the objective function with no a tradeoff among the objectives for multi-purpose dam operation plan in Korea.

• Journal of Korean Public Health Nursing
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• v.6 no.1
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• pp.5-14
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• 1992

The role of Community Health Practitioner(CHP) should be continuously adapted to the social changes and the needs for health care services. That is the reason CHP needs to be retrained through the continuing education program. This paper showed CHP's roles to be reinforced by analyzing his present . task performance and ability in seven task areas as well as the changes of the social environment. In addition, this paper presented retraining areas needed for the reinforcement of the CHP's role in the future, and the development strategy of related continuing education package. The major results are as follows: 1. CHP's main practice area is health care services and management & guidance, whereas the development of health information system is neglected. 2. As a result, CHP plays a role mainly as a health care supplier, a consultant and a health instructor. Therefore CHP's roles to be reinforced are management of the community health system, act as a spokesman and a team member, promotion, assessment, collection & maintenance of information, coordination and research. 3. The areas to be reinforced in CHP's continuing education are (]) aged people's health, (2)?drinking & smoking, (3)?young people's health(including drug and sexualissues), (4) rehabilitation, (5)?administration and management for community health, (6)?partnership & membership, (7) local residents' participation and community development, (8) collection & treatment of health information and (9) environmental issues for community health. 4. The priority in developing continuing education package should be given to the area, which is encountered often in rural area but important, and has a good opportunity to be resolved. The health management of aged people was selected as a top priority by members of the Community Nursing Academic Society. 5. It is recommended that the instruction materials be accommodated to the small scale workshop or seminar in order that CHPs can participate actively in the continuing education program.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.55 no.4
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• pp.378-391
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• 2019

The objective of this study is to establish a direction for smart aquaculture technology development in the Republic of Korea through patent analysis and a demand survey of experts and fishermen. The patent analysis was conducted using Wisdomain for patents in the Republic of Korea, the United States of America, Europe, Japan, and China from 2005 to 2016. This study conducted an analytic hierarchy process (AHP) survey of experts in the fields of fishery, marine, and ICT among others. Furthermore, it carried out a demand survey of 85 fishermen in Jeonnam and Jeju. The smart aquaculture technology market has moderately grown in the Republic of Korea until recently, and it is expected to expand further because of the expansion of national investment in the smart aquaculture field. The priority evaluation results for developing smart aquaculture technology show that land-based aquaculture has a higher priority than sea-based aquaculture. Of the fishermen that responded, 84% said that they need to introduce smart aquaculture technology to solve problems in the supply and demand of manpower, labor cost, and maintenance expenses. The direction of development should lie in developing biological and environment-based standard aquaculture models to spread high-tech systems and vitalize the aquaculture industry. This requires continual training of human resources in the smart aquaculture field.

• Land and Housing Review
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• v.6 no.1
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• pp.1-9
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• 2015

This study is significant by suggesting the plan of urban regeneration strategy, selection of vitalization area and build basic DB for establishing a plan of urban regeneration vitalization and draw measures to evaluate and monitor as urban regeneration project is promoted in earnest. For the process of study, basic DB and evaluation monitoring index were examined based on collaboration proposal of 13 leading areas and (the agenda of) the plan of urban regeneration vitalization in 4 areas(Seoul, Changwon, Busan, Yeongju). This study can be concluded as follows; First, general information system which can support regeneration strategy vitalization plans for smooth promotion of the project and manage regeneration vitalization project and all kinds of city maintenance projects systematically are necessary. Second, monitoring of regeneration project should be firstly institutionalized. thrid, it's necessary to secure that city or county foundational management plan and the relations during the establishment of strategic vitalization plan. Finally, it's necessary to introduce and evaluate modularized plan suitable for Bottom-up regeneration project.

• Journal of Korean society of Dental Hygiene
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• v.19 no.3
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• pp.437-448
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• 2019

Objectives: The purpose of this study was to suggest an effective instruction method for dental hygiene students by determining the degree of importance and satisfaction that they attach to the courses. Methods: Data obtained from a survey that was conducted on 654 dental hygiene students were analyzed. Statistical Package for the Social Sciences version 23.0 was used for the statistical analysis. A paired t-test was conducted to detect the differences between the degree of importance that the respondents attached to the courses and the degree of satisfaction they achieved. A comparative analysis of the two was performed using the IPA analysis. Results: Regarding the items, the respondents found the environment most important, followed by the content, method, perspective, and assessment. Regarding satisfaction, they were most satisfied with the environment, followed by the perspective, method, content, and assessment. Regarding the importance of ideal teaching, the respondents gave the highest priority to 'a class in which the core content is summarized, emphasized, and explained.' The satisfaction was the highest toward 'PowerPoint-based classes in which the core content is well-organized.' Based on the results of the IPA analysis, the respondents regarded 16 items as requiring maintenance and continuous efforts, 12 items as low priority, and 4 items as requiring excessive efforts and timely improvement. Conclusions: An ideal class requires the instructor to utilize various teaching methods that would enable the students to comprehend the detailed teaching content and elicit active interaction and feedback from the students through easy-to-understand lectures that are appropriate for students.