• Journal of the Korean Institute of Educational Facilities
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• v.18 no.1
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• pp.11-19
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• 2011

This study was carried out to investigate consciousness of users about management of multipurpose space introduced in open planned elementary school after the year of 1990's. Thirteen open planned elementary schools were participated through questionnaire and interviews. As the results, the positive response was maintained a superior position in the need of multipurpose space and changes of classroom management. Independence type in the arrangement of multipurpose space and the additional corridor type having extra moving line in comparison with the extensional corridor type were remarkably preferred, respectively. The consciousness of utilization about multipurpose space was comparatively low in a type having traffic line in surroundings of classroom compared to a type having entrance or a type having roundabout corridor. Finally, the group accepting changes positively showed high need to solve urgent problems about management of classroom.

• Journal of the Korean Institute of Rural Architecture
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• v.12 no.1
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• pp.9-16
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• 2010

As the importance of health and school health grows, the purposes of this research are to investigate the differences between the characteristics and the utilization of the nurse's office of an elementary school in an urban area and the nurse's office of an elementary school in a rural area, and to provide the data for the planning of construction of a nurse's office convenient for students to use after grasping the regional characteristics. The methods of this research include the interview and the survey conducted to the heath teachers after visiting 20 nurse's offices in 13 eups and myeons, and examined and analyzed the differences between the characteristics and the utilization of the nurse's office of elementary schools in an urban area and the nurse's office of an elementary school. The nurse's offices of the elementary schools in Cheongwon, a rural area, are worse in access to health care institutions and in the connection to the placement than those of the elementary schools in urban areas, so most of eups and myeons were not allowed for easy access to medical service. Depending on the bad personal surroundings of each elementary student, mental stress and the lack of heal care of each student should be taken care of along with the educating of the parents and the children. Also because of the difficulties in access to the health care institutions, it is suggested that a lot of support and interest should be provided for the nurse's offices and that a lot of changes with functions should occur to the nurse's offices so that the nurse's office of an elementary school can play the role as a local health care institution. Besides, the health teachers also should be able to provide more professional medical services by taking in-service training courses.

• Human Ecology Research
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• v.61 no.1
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• pp.15-28
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• 2023

The aim of this study was to develop, implement, and evaluate the use of Artificial Intelligence in the prevention of violence among middle-school students. The sample for this study consisted of 20 first-year middle-school students who participated in theme selection activities in a free semester program as part of their home economics studies. The data for the study consisted of nine class observation logs, four group activity outputs, 30 class results, an online survey, and in-depth interviews with three students. A program called "R.U.OK" was developed by setting problematic situation for school violence prevention linked to the contents of the Home Economics Education(HEE) curriculum. After the program was implemented, the survey on the students' class satisfaction content elements, with AI-based learning activities and PBL and interest, displayed high points, with an average of 4.0 or higher. Our qualitative analysis produced four significant results. First, students' concerns about school violence had increased and they showed a change in attitude, having more empathy with friends and more interest in their surroundings. Second, digital and AI literacy had improved, and students' interest in digital media learning had increased. Third, there had been an improvement in problem-solving ability in terms of being able to think more critically and independently. Fourth, the results also demonstrated that there had been a positive effect on self-direction and an improved capacity for teamwork. This study was significant in demonstrating the effectiveness of a program for the prevention of school violence based on the use of digital technology in the educational environment.

• Journal of Korean Society for Quality Management
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• v.35 no.2
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• pp.1-26
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• 2007

The purpose of this research is to suggest the promotive directions of Quality Circle activity. Since 1975, variety of organizations in Korea have widely the implemented Quality Circle activities for their management systems. Today, Companies are facing the harsh realities of a competitive environment. This is no time for revolutionary change. Instead, Companies are instituting revolutionary change meant to have impact within a very short time frame. The Worker's Quality Circle activity is, essentially, a trouble shooting oriented voluntary small group within their working place to improve the surroundings creatively. The industries have enthusiastically used Quality Circle activities and were influenced from them. The Quality Circle activities can be regarded as a kind of Knowledge Management where new knowledge is created and knowledge is shared in the economy. However, the academics were less interested in this subject, as a result, there were no systematic guidances for Quality Circle activities. Also, the government was less interested in these activities, as a result, there were no systematic policy making for Quality Circle activities. Thus, in this research, the promotive directions for Quality Circle activities were suggested which were based on the results of survey Questionnaires presented to promoters of the domestic companies. As a results of this research, to maximize the effect of TQM(Total Quality Management) in the nationwide, Quality Circle activity as a bottom-up management should be more expanded and revitalized.

• The Transactions of the Korean Institute of Electrical Engineers B
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• v.51 no.8
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• pp.457-466
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• 2002

The speed and position control of SRM(Switched Reluctance Motor) needs the encoder or resolver to obtain the rotor position information. These position sensors can be affected by the EMI, dusty, and high temperature surroundings. Therefore the speed and position sensorless control has been studied widely In this paper, the binary observer of the SRM which has two feedback compensation loops to control the speed of SRM is proposed. One loop reduces the estimation error like the sliding mode observer, and the other removes the estimation error chattering occurred in the sliding mode observer. This observer is constructed on the basis of variable structure control theory and has the inertial term to exclude the chattering. This method has a good estimation performance in spite of nonlinear modeling of SRM. The advantages of the proposed method are verified experimentally.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.3
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• pp.1189-1204
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• 2018

Detecting and capturing 3D human structures from the intensity-based image sequences is an inherently arguable problem, which attracted attention of several researchers especially in real-time activity recognition (Real-AR). These Real-AR systems have been significantly enhanced by using depth intensity sensors that gives maximum information, in spite of the fact that conventional Real-AR systems are using RGB video sensors. This study proposed a depth-based routine-logging Real-AR system to identify the daily human activity routines and to make these surroundings an intelligent living space. Our real-time routine-logging Real-AR system is categorized into two categories. The data collection with the use of a depth camera, feature extraction based on joint information and training/recognition of each activity. In-addition, the recognition mechanism locates, and pinpoints the learned activities and induces routine-logs. The evaluation applied on the depth datasets (self-annotated and MSRAction3D datasets) demonstrated that proposed system can achieve better recognition rates and robust as compare to state-of-the-art methods. Our Real-AR should be feasibly accessible and permanently used in behavior monitoring applications, humanoid-robot systems and e-medical therapy systems.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.37 no.2 s.110
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• pp.57-63
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• 2005

Microflute has several advantages of production cost and strength compared to board. Production technology of microflute has not been fully explored. Therefore suitability of corrugating medium for microflute shape formation was analyzed by measuring (1) lengths of corrugating medium before flute formation, (2) those after flute formation but before conditioning and (3) those after flute formation and after conditioning. The suitability of corrugating medium was better when the length change before and after conditioning after flute formation was smaller, because flute sustained its form. The suitability of corrugating medium for microflute shape formation was better when the flute height after flute formation was higher. The suitability of corrugating medium was analyzed depending on properties of corrugating medium in terms of fiber bonding strength and paper stiffness. For better microflute shape formation and its preservation it was found that fiber bonding should be increased, proper stiffness was required, and resistance to water absorption from surroundings should be increased.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.37 no.2 s.110
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• pp.64-69
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• 2005

Suitability of corrugating medium for microflute shape formation was analyzed in terms of fiber bonding strength and paper stiffness. Cationic starch and oxidized starch were applied to corrugating medium's surface by bar coater in order to compare the relative importance of stiffness and fiber bonding on microflute formation. It was found that cationic starch was beneficial for better stiffness and oxidized starch was beneficial for better fiber bonding. The results of the decreasing ratio of length by flute formation, the calculated conditioning effect, and the flute height before and after conditioning treatment were obtained. For better microflute shape formation and its preservation it was found that fiber bonding strength should be increased, proper stiffness was required, and resistance to water absorption from surroundings should be increased.

• Journal of Radiation Industry
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• v.2 no.1
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• pp.1-7
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• 2008

Active polymer gels expand and contract in response to certain environmental stimuli, such as the application of an electric field or a change in the pH level of the surroundings. This ability to achieve large, reversible deformations with no external mechanical loading has generated much interest in the use of these gels as biomimetic actuators and artificial muscles. In this study, poly (vinyl alcohol)(PVA) grafted acrylic acid monomer (PVA-g-AAc) hydrogels were prepared by $^{60}Co$ ${\gamma}-ray$ irradiation and their properties such as degree of grafting and weight swelling in electrostimulation as an artificial muscle and actuator were investigated.

• Safety and Health at Work
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• v.12 no.3
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• pp.416-420
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• 2021

Hazardous area classification design is required to reduce the explosion risk in process plants. Among the international design guidelines, only IEC 60079-10-1 proposes a new type of zone, namely zone 2 NE, to prevent explosion hazards. We studied how to meet the zone 2 NE grade for a facility handling hydrogen gas, which is considered as most dangerous among explosive gases. Zone 2 NE can be achieved considering the grade of release, as well as the availability and effectiveness of ventilation, which are factors indicative of the facility condition and its surroundings. In the present study, we demonstrate that zone 2 NE can be achieved when the degree of ventilation is high by accessing temperature, pressure, and size of leak hole. The release characteristic can be derived by substituting the process condition of the hydrogen gas facility. The equations are summarized considering relation of the operating temperature, operating pressure, and size of leak hole. Through this relationship, the non-hazardous condition can be realized from the perspective of inherent safety by the combination of each parameter before the initial design of the hydrogen gas facility.