• Journal of Korean Elementary Science Education
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• v.33 no.3
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• pp.524-535
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• 2014

The purpose of this study was to develop the creative hands-on activities using EM (effective microorganisms) that can enhance the environmental literacy of learners, and to examine the effect of its application. The program was composed of 10 sessions, including biological knowledge and ecosystem status of microorganisms, practical activities that stimulate the environmental behavior and emotion of elementary school students, and career design related to their aptitude and occupation in future. This program can also be connected to the domains of creative hands-on activities, that is, career activities, club activities, self-regulated activities and voluntary service activities. In this study, two classes of 3th grades of elementary school in Seoul were selected and divided into two groups. The experimental group to undergo the program of creative hands-on activities using EM showed higher environmental literacy than the control group. In the concrete, it is proven that this program contributed to the improvement of learners' environmental emotion, skill, and behavior. When interviewed with experimental group, we found that sustained EM hands-on activities were conducted in collaboration with their families, and they became more aware of the utilities of EM and could participate in the activities more interestingly. In conclusion, the creative hands-on activities program was very effective and helped elementary students to change their environmental literacy in positive ways.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1833-1838
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• 2008

With the opening of a KTX on April 1st, 2004, Gwangmyung Station was opened. It is a station for KTX only. As it is not located at the center of a city, it doesn't have as good access mode system as Seoul, Deajun Station. In addition, because it is constructed within a limited development district, the development of catchment areas is not enough. At the beginning of the opening, demand falls short of their expectation so Importance of Access Mode System is issued. For the revitalization of Gwangmyung Station, Korea National Railroad focuses on the construction of Access Mode System such as the beginning of shuttle bus service between Kwan-ak and Gwangmyung station on June, 2005, opening of shuttle electric train between Yongsan and Gwangmyung station December, 2006, and the completion of parking tower in Gwangmyung station. After opening to Access Mode System, demand has been increasing. As market is changing, the railway line capacity between Seoul and Siheung reaches a limit, this research tries to review the way to setup sufficient Access Mode System.

• Journal of Industrial Convergence
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• v.1 no.1
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• pp.159-169
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• 2003

In the 21st century, a time for smaller companies is fast approaching. A lot of people believe that the small and mid-sized companies will be a main force for industry. However, this concept could only be possible after we find some solutions for the general, labor shortage problem. Specifically, the majority of these challenges stem from improper distribution of labor within each company's divisions. These labor shortages have been influenced by a variety of exogenous (human) variables. The sources of the most serious problems come from the lack of appropriate labor and their fair wages. The work environment is also a contributing factor. These items are considered to be serious challenges to the development of smaller enterprises. The purpose of this study is to explore these difficulties. For solving the labor shortage, enterprises and government should offer employees supportive benefits. Enterprise companies should make an effort to improve their work environments. Companies should also use innovative strategies to raise labor compensation. With this in mind, smaller firms should struggle to retain their employees for an extended period of time and commit to an organizational business strategy. Governments should try to develop a higher recognition of smaller enterprises. They should create human power recruitment, development, and recourse policies as needed. Furthermore, they should manipulate existing policies to support human resource development that aids these companies to be more competitive with larger ones. Additionally, it is necessary to develop new, creative programs to help with the social recognition of smaller enterprises.

• Journal of Family Resource Management and Policy Review
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• v.22 no.4
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• pp.61-74
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• 2018

The purpose of this study is to verify the mediating effect of self-efficacy in relation to marriage satisfaction and the social support of immigrant women. The research data for the analysis were collected from those who using multi-cultural family support centers in Siheung of Gyeonggi-do and Ansan from September 30 to October 21, 2017, and a total of 223 people were used in the final analysis. The analysis methods examined the characteristics of the subjects through frequency analysis and technical statistics, and a hierarchical regression analysis was performed to verify the effectiveness of mediator effects. The statistical program used SPSS 22.0. The analysis showed that social support and self-efficacy of married immigrant women had a significant impact on marital satisfaction. In addition, self - efficacy had a partial mediating effect on the relationship between the social support of married immigrant women and marital satisfaction. Based on these results, we discussed practical implications for social support and self-efficacy to improve marriage satisfaction of married immigrant women.

• Journal of Auto-vehicle Safety Association
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• v.13 no.4
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• pp.39-52
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• 2021

This paper presents a longitudinal acceleration controller that can be applied to real vehicles (nonlinear and time-varing systems) with only a simple experiment regardless of the type of vehicle and the control interface structure. The controller consists of a feedforward term for fast response, a zero-throttle acceleration compensation term, and a feedback term (P gain) to compensate for errors in the feedforward term, and another feedback term (I gain) to respond to disturbances such as slope. In order to easily apply it to real vehicles, there are only two tuning parameters, feedforward terms of throttle and brake control. And the remaining parameters can be calculated immediately when the two parameters are decided. The tuning procedure is also unified so that it can be quickly and easily applied to various vehicles. The performance of the controller was evaluated using MATLAB/Simulink and Truksim's European Ben model. In addition, the controller was successfully implemented to 3 medium-sized vehicle (HMC Solati), which is composed of different control interface characteristic. Vehicle driving performance was evaluated on the test track and on the urban roads in Siheung and Seoul.

• Journal of Auto-vehicle Safety Association
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• v.15 no.2
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• pp.6-12
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• 2023

For the commercialization and standardization of autonomous vehicles, demand for rigorous safety criteria has been increased over the world. In Korea, the number of extraordinary service permission for automated vehicles has risen since Hyundai Motor Company got its initial license in March 2016. Nevertheless, licensing standards and evaluation factors are still insufficient for operating on public roadways. To assure driving safety, it is significant to verify whether or not the vehicle's decision is similar to human driving. This paper validates the safety of the autonomous vehicle by drawing scenario-based comparisons between manual driving and autonomous driving. In consideration of real traffic situations and safety priority, seven scenarios were chosen and classified into basic and advanced scenarios. All scenarios and safety factors are constructed based on existing ADAS requirements and investigated via a computer simulation and actual experiment. The input data was collected by an experimental vehicle test on the SNU FMTC test track located at Siheung. Then the offline simulation was conducted to verify the output was appropriate and comparable to the manual driving data.

• Journal of Korean Medicine Rehabilitation
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• v.18 no.1
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• pp.173-185
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• 2008

Objectives : The purpose of this study was to observe the effect of Bong (a type of stick which is called bong) Chuna manual therapy (CMT) on the correction of posterior inferior (PI) ilium deviation, and evaluate changes of pain intensity and Oswestry Disability Index (ODI) for the treatment of low back pain. Methods : We measured leg length inequality (LLI), as an indicator of correction of PI ilium, before and after the Bong CMT twice immediately, and also checked the change of LLI in the course of 10 times of treatment. Ten times of Bong CMT with oriental medical treatment, such as acupuncture and bee venom pharmacopuncture, were performed not only to correct the PI ilium deviation but also to alleviate pain. Visual Analog Scale (VAS) and Oswetry Low-back Pain Disability Index (ODI) score were scored to evaluate the pain and function of low back. Results : In this study, LLI was decreased in general while we performed correction of PI ilium deviation immediately, also effectively decreased comparing between before and after 10 times of Bong CMT, Bong CMT with oriental medical treatment improved pain and function of low back. Conclusions : These results suggest that Bong CMT may be an effective method for the correction of PI ilium deviation. However more rigorous study should be followed because of small cases report.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.10 no.4
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• pp.8-20
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• 2007

This report designs a landscape plan of six reservoirs in Sihung city which has possibilities both in development and in destruction. The report suggests how to create a leisure space in harmony with the surroundings in Sihung city. Building a leisure town will create the local residents' demand in recreational activities and improve the amenities. Therefore this study analyzes eco-friendliness of the land, conditions of fauna and flora, the quality of water and the usage figures of the six reservoirs so as to develop those six reservoirs more eco-friendly. Based on environmentalism, the leisure spot development plan attribute the ultimate importance to local residents' pleasant leisure time and recreations. With this master plan, the report suggests expanding the city's green space, since the city has under 50% out of the optimal percentage of green space per person. In addition, the report intends to plan each six reservoirs developed separately but organically connected at the same time that those six can put together and become a Sihung Green Way which makes the city's leisure space a belt. Apportioning the six reservoirs development levels in order to balance the development, accumulating and arranging buildings and facilities in available spaces according to the governing law, and creating resting area, promenade and parking lot to make an eco-city. Also the report suggests conserving environment and regulating contamination such as ban on fishing to move forward sustainable development. Since the adventives predominate the site, introducing indigenous plants should be necessary soon.

• Fire Science and Engineering
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• v.33 no.6
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• pp.80-86
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• 2019

In Korea, a total of 556 chemical accidents occurred from 2012 to 2018 caused by adverse reactions of two or more chemicals, which required significant amounts of time to identify the causative chemicals. Rapid analysis is required for effective incident response and probing. In this study, a quantum transition time-of-flight mass spectrometer was used to identify the causative agents of chemical accidents caused by adverse reactions. The analyzer enabled fast real-time analysis without the need for sample collection and pretreatment. Quantitative and qualitative analysis of most volatile organic compounds with high hydrogen affinity was performed to investigate the cause of the chemical accidents. In fact, in the month of 201◯, methanol and toluene were detected as causative agents of the accident using a quantum transition time mass spectrometer, and were also the cause of the reported odor.

• Journal of the Society of Disaster Information
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• v.14 no.1
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• pp.59-64
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• 2018

In the trend of increasing awareness of chemical accidents, hazardous chemical transport vehicle accidents are occurring every year. In this study, we analyzed improvement of accident prevention and countermeasures through statistical analysis of hazardous chemical transport vehicle accidents. A total of 383 chemical accidents between January 2014 and December 2017 were analyzed. During this period, number of transportation accidents was 83 cases, accounting for 21.67% of total chemical accidents. In the current system, despite the direct handling of hazardous chemical, it is out of regulation of damage prediction unlike the workplace. In order to effectively respond to actual accident, information on damage prediction is required and should be shared with related ministry. And it should be developed to real-time monitoring of hazardous chemical transport vehicle through integrated control tower.