• Journal of the Korean School Mathematics Society
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• v.18 no.4
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• pp.449-470
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• 2015

The purpose of this study was to explore the feasibility of Flipped Learning teaching and learning methods in pre-math teachers' education through investigation of pre-math teachers' awareness about the method. To achieve the goal, we implemented Flipped Learning model that was composed of three steps in mathematics education class of 30 pre-math teachers and then we investigated their awareness about the model and process. Pre-math teachers' awareness were positive about the model and process of Flipped Learning, but some matters were suggested about learning environment. The results of this study showed the feasibility of Flipped Learning in pre-math teachers' education.

• Journal of KIISE:Computer Systems and Theory
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• v.32 no.6
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• pp.314-323
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• 2005

This paper proposes a real-time 3D visualization system for situational awareness of Air force operations. This 3D system of situational awareness supports a high-level commander of Air force during the war game operations. These situation aware supporting data such as the aircraft track data of radar, aircraft schedule database, map and satellite image data are integrated into one structured data and those are visualized as 3D structure. By using an Out-of-Core method, we can visualize a 3D huge data in real-time in mobile notebook environment. The experiment shows several examples of 3D visualization supporting situation awareness for Air force operation.

• International Journal of Advanced Culture Technology
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• v.7 no.4
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• pp.104-110
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• 2019

Since 1986, domestic sewage treatment plants have installed and operated biogas plants that produce biogas (digested gas) using food, livestock manure and sewage sludge as part of the use of alternative energy for energy independence. Despite concerns about safety accidents and risks of large-scale accidents due to the continuous expansion of biogas plants, the Ministry of Environment has managed and supervised biogas plants to be environmental plants, focusing on environmental management. There is a lack of safety awareness of workers' processes. Only recently has the process safety management (PSM) system been implemented in biogas plants, but workers' perceptions of process safety have changed. As there is a difference in the degree of safety process management and safety awareness among workers, it is necessary to establish clear and systematic safety management standards. Therefore, The purpose of this study is to examine whether the application of the plant safety management (PSM) system to biogas plants is effective for workers' safety awareness in order to ensure safe operation of biogas plants and prevent workers' safety accidents in advance.

• Journal of the Korea Society of Computer and Information
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• v.15 no.12
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• pp.181-188
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• 2010

This paper proposes 3D visualization systems for the real-time situation awareness and a state information of the aircraft. This system was embodied with OpenGL and the Google Earth of web base using situation data of the aircraft. The existing system has problem which speed decrease and visible restricted map because massive data of terrain and satellite photo. This system is supports the visualization tool which is economic and entire area for a real-time situation awareness with minimum flight information using Open-API of the Google Earth. Also provides a visible convenience to expansion-view using multiple location information. This research result could be used to system for the situation awareness of the aircraft from web environment.

• Hwankyungkyoyuk
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• v.10 no.2
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• pp.87-100
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• 1997

This research aims to collect informations which is necessary to develop a curriculum for the environmental education of elementary and secondary schools. We developed a questionnaire concerning the present situations of environmental education in schools and needs assessment items about environmental education. The questionnaire were distributed to a sample of elementary and secondary school teachers with diverse grades and locations. The results of our reserch are as fellows: 1. The awareness of key concepts related to environment problems. They are not aware of ecological interdependence but just focus on the result of environmental deterioration 2. The awareness of importance of environmental education: Teachers prefer campaigns or legislations to environmental education. They want to take an Immediate action rather than a fundmental method like education in order to solve environmental problems 3. The awareness of relationships between environmental problems and natural or man-made circumstances: Most teachers emphasize recycle and reuse of the materials such as batteries, papers, plastics, cans. and bottles. but do not teach the importance of ecology. Only science and environment teachers do. 4. Environmentalism or ecology? Ideally teachers accept the importance of ecology, but in reality they cohoose environmentalism. 5. On the content and method of environmental education: Teachers insist that both environmental instruction and practical, first-hand experience should be given to not only elementary but secondary students, and that most of subject matters should deal with environmental issues. 6. On the situations and tasks of environmental education: School teachers indicate that they could not instill positive patterns of conduct toward environment in students. They think that both insufficient in-service training about environment and cooperation among teachers themselves are partially responsible for it.

• Journal of People, Plants, and Environment
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• v.24 no.5
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• pp.509-517
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• 2021

Background and objective: Problems currently occurred in the environment are caused by a lack of environmental awareness of the community. Biology students learn the environment in ecological learning. Students must explore environmental knowledge (EK) and are expected to have high environmental awareness (EA) and then apply their knowledge in daily life with pro-environmental behavior (PEB). There is a need for designing climate-change book serials for university students (CCBS-US) towards contextualized learning. This study aimed to determine the relationship between EK and EA and the PEB of biology students as a baseline for designing CCBS-US. Methods: The study used a quantitative descriptive method with a correlational design. Total 136 biology students from a state university in Jakarta, Indonesia served as samples of the study. Results: Research results revealed a positive relationship between EK and PEB of biology students. There was a positive relationship between EA and PEB of biology students and between EK and EA and PEB of Biology students. Moreover, 77% of students reported their EK is very high, 55% of students reported their EA is medium, and 46% of students reported their PEB is medium. Ecological learning has a vital role in shaping the EK, EA, and PEB, thus CCBS-US needs to be developed. Conclusion: The study concluded that there was a relationship between EK, EA, and PEB. The study recommends the development of CCBS-US based on the survey results.

• The Journal of the Korea institute of electronic communication sciences
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• v.3 no.1
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• pp.19-25
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• 2008

In order to realize future ubiquitous, it needs to establish an environment witch service is provided to an user without user's awareness. This study suggests the mobile context awareness algorithm for that. With DB collected using LBS technology, it aims to recognize service status of a terminal and to maximize user's convenience by offering service through continuous inter-operability for various demand and environment of users against the status of a terminal. To realize the algorithm, it adds a terminal status deduction process to MSC. And then, it suggests the algorithm witch determines terminal status depending on status parameter defined by analyzing LBS-based short information by MSC. It realize C code.

• Journal of Digital Convergence
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• v.10 no.2
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• pp.293-297
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• 2012

In order to provide with personalized recommendation service in context-awareness environment, the collected context data should be analyzed fast and the objective of user should be able to inferred effectively. But, the context collected from the mobile devices is not suitable for applying the existing inference algorithms as they are due to the omission or uncertainty of information and the efficient algorithms are required for mobile environment. In this paper, the behavior pattern was classified using naive bayes classification for minimize the loss caused by the omission or error of information. And pattern matching was used to effectively learn of the users inclination and infer the behavior purpose. The accuracy of the suggested inference model was evaluated by applying to the application recommendation service in the smart phones.

• Proceedings of the KSRS Conference
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• 2005.10a
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• pp.337-340
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• 2005

Context-awareness techniques in ubiquitous computing environment provide various services to users who need to get information via the analysis of collected information from sensors in a spatial area. Context-awareness has been increased in ubiquitous computing and is applied to many different applications such as disaster management system, intelligent robot system, transportation management system, shopping management system, and digital home service. Many researches have recently focused on services that provide the appropriate information, which are collected from Internet by different kinds of sensors, to users according to context of their surrounding environment. In this paper, we propose an abstraction model to manage the large-scale contextual information and their metadata which are collected from different kinds of in-situ sensors in a spatial area and are presented them on the web. This model is composed of the modules expressing functional elements of sensors using sensorML(Sensor Model Language) based on XML language and the modules managing contextual information, which is transmitted from the sensors.

• Journal of Institute of Control, Robotics and Systems
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• v.16 no.12
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• pp.1159-1166
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• 2010

Today, detecting the location of moving object has been traced as various methods in our world. In this paper, we preset the system to improve the estimation accuracy utilizing detail localization using radar sensor based on WSN and situational awareness for a calibration (context aware) database, Rail concept. A variety of existing location tracking method has a problem with receiving of data and accuracy as tracking methodology, and since these located data are the only data to be collected for location tracing, the context aware or monitering as the surrounding environment is limited. So, in this paper, we enhanced the distance aware accuracy using radar sensor utilizing the Doppler effect among the distance measuring method, estimated the location using the Triangulation algorithm. Also, since we composed the environment data(temperature, illuminancem, humidity, noise) to entry of the database, it can be utilized in location-based service according to the later action information inference and positive context decision. In order to verify the validity of the suggested method, we give a few random situation and built test bed of designed node, and over the various test we proved the utilizing the context information through route tracking of moving and data processing.