• Journal of Science Education
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• v.33 no.2
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• pp.173-183
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• 2009

We aimed to examine difference between the brain activation pattern based upon hypothesis-generating and hypothesis-understanding among the pre-service teachers not majoring in biology, the pre-service teachers majoring in biology and the biologists using fMRI. We have designed two sets of task paradigm on the biological phenomena: hypothesis-generating and hypothesis-understanding and thirty six healthy participants (twelve participants per group) performed the tasks. The result was showed that 1) there were significant differences of brain activation patterns in hypothesis-generating on the biological phenomena among three groups, 2) the left middle frontal gyrus in the part of DLPFC region was play an important roles of hypothesis-generating and make a significant differences among three groups. The superior ability of biologists were based upon the activation of middle frontal gyrus which has secondary integration of abstract information, and 3) there were no significant differences of brain activation patterns in hypothesis-understanding on the biological phenomena among three groups. These findings provided that scientist might be skillful in generating a new scientific knowledge.

• Journal of Korean Society of Transportation
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• v.23 no.6 s.84
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• pp.91-102
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• 2005

When it comes to the process of information storage, people are likely to organize individual information into the forms of groups rather than independent attributes, and put them together in their brains. Likewise, in case of finding the shortest path, this study suggests that a Hierarchical Road Network(HRN) model should be selected to browse the most desirable route, since the HRN model takes the process mentioned above into account. Moreover, most of drivers make a decision to select a route from origin to destination by road hierarchy. It says that the drivers feel difference between the link travel tine which was measured by driving and the theoretical link travel time. There is a different solution which has predicted the link travel time to solve this problem. By using this solution, the link travel time is predicted based on link conditions from time to time. The predicated link travel time is used to search the shortest path. Stochastic Process model uses the historical patterns of travel time conditions on links. The HRN model has compared favorably with the conventional shortest path finding model in tern of calculated speeds. Even more, the result of the shortest path using the HRN model has more similar to the survey results which was conducted to the taxi drivers. Taxi drivers have a strong knowledge of road conditions on the road networks and they are more likely to select a shortest path according to the real common sense.

• Journal of Digital Convergence
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• v.13 no.4
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• pp.263-270
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• 2015

The research is to be aimed how much the practice education could have influence on the critical thinking, the ability to work out problems and the confidence of nursing process. In order to collect the result, 4 scenarios had been applied into 41 of nursing student from March to July in 2014 (total 12 weeks). First of all, in the case of the critical thinking, its score($3.41{\pm}.31$) after being educated was remarkably higher than before($3.25{\pm}.26$). There was also no difference regarding the total score of ability to solve problems & nursing process confidence. However, the knowledge about nursing process, the identification of the relation causes and linkage regarding nursing process step account is after being educated were higher than before in subcategory. Although the changes regarding the ability to solve problems could not be identified with comparing before, the critical thinking and the confidence had been effected by the practice education with using the simulation. Thus, in order to identify the effect of the simulation education for further details, the more researches with the diversified subjects and the varied duration should be needed.

• Korean Journal of Construction Engineering and Management
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• v.10 no.4
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• pp.26-37
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• 2009

Ministry of Land, Transportation and Marine Affairs(MLTM) has implemented Construction CALS project for improving productivity of construction industry and for making construction project management efficient by responding to informatization and knowledge base society in 21st century. CALS has beeb applied successfully to projects form MLTM, however, the outcomes of Construction CALS hasn't been recognized. In addition, there is no way to find how high the level of Construction CALS is when it is compared with other SOC informatization projects. This study found out the informatiziation level of Construction CALS by using the evaluation index proposed in the former study, and by comparing with other sectors. The evaluation on the level was implemented in the three parts such as informatization infrastructure(network, hardware, standardization, data, informatization, informatization security), informatization utilization(information usage, IT performance), and informatization support(informatization goal, organization of informatization, informatization investment, informatization education), and then, this evaluation was compared with "Assessment for level of industry information system", "Assessment for level of small and midium sized industry information system", and "IICI(Informatizaion Index for the Construction Industry)". With the result from the comparison, this study produced superior factors and inferior factors for each sector. These results are expected to be useful for prioritizing budget allocation by finding out the informatization level of Construction CALS.

• Archives of design research
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• v.19 no.5 s.67
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• pp.5-16
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• 2006

The purpose of this research is to bring to the center of focus, the ad creativity, which in turn can generate the highest advertising effects. The study excludes external factors such as personal relationships, academic network and lobbying powers which were prevalent in the Korean situation. A transformational leader can influence charisma, inspiration, intellectual stimulation, individual consideration and performance goal. As the result of this study shows, the core competence that a C.D. may always want to possess at present as well as in the future is to "motivate inspiration". Charisma may be an ability currently in need but this may not necessarily be so in the future. It may be predicted that a softer quality, which is knowledge-based, that provides intellectual stimulation may be a more valued characteristic. It has been suggested that in the increasingly diversifying society of the future, charisma may be a barrier to enhancing creativity. In times of uncertainty and ambiguity, innovative ideas bring economic rewards (Cockayne, 2004). There may be conflicts of views and opinions between individuals and organizations. Turning these into positive outcome to produce innovative ideas, may be an area of further study. However, there must have been studies where informal networking has produced innovative ideas. Therefore, a transformational leader of an organization needs to investigate the dynamics of informal networking within his team.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.8A
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• pp.745-751
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• 2006

The transmitter requires knowledge of the channel status information in order to adopt the adaptive modulation and coding scheme(AMC) for OFDM system. But in the outdoor environment which the users have high mobility, the channel status information from the users is outdated, so that it induces the degradation of system throughput and packet error rate(PER) performance. To solve this problem, researches about applying channel prediction technique to the AMC scheme have been proceeded. Most channel prediction techniques assume that there is no channel variation in the predefined time duration, e.g., a slot. As a result, those techniques cannot compensate the degradation of PER performance resulting from the rapid variation of channel during the slot duration. This paper introduces a novel channel prediction technique for OFDM/FDD system to support adaptive modulation and coding scheme over rapidly time-varying multipath fading channel. The proposed channel prediction technique considers the time-varying nature of channel during the slot duration. Simulation results show that the AMC scheme of OFDM/FDD system utilizing the proposed channel prediction technique can guarantee the target PER of 1% without any loss of system throughput compared with the case supported by the conventional channel prediction under ITU-R Veh A 30km/h.

• Journal of the Korean earth science society
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• v.31 no.3
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• pp.288-299
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• 2010

Recently, scientific literacy means not only the acquisition of scientific knowledge but also the linguistic ability to participate in a scientific discourse community. Keeping this in mind, this study investigated middle school students' writings about phase transitions of water in air. Sixty seven students at 9th grade (age 15) students participated in this study and wrote two individual short texts. The result of text analysis can be summarized as follows: (1) students had problems with familiar scientific terms such as 'water vapor' and 'steam' as well as unfamiliar ones like 'dew point'. (2) Students described right semantic relations and at the same time wrong ones more in the idea formed from everyday experience than those from school instruction. (3) While students showed action and process centered writing in text about everyday phenomenon, they showed more preference for technical words and nouns in text about school science. This study suggest that students could develop linguistic ability of science from both spontaneous process based on experience and formal and theoretical learning; the former in forming various semantic relations, the latter in technical and abstract aspect of scientific writing.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.10 no.1
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• pp.111-118
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• 2015

Students have chosen the various behaviors to prepare for the future during the university life. In general to be employed by someone and to create one's own business is likely to be regarded as difference ways. The objectives of this study is to find that whether student's planned behaviors such as albeit, internship, getting some certification are to be related with entrepreneurial intention, and entrepreneurial intention has positive relation with entrepreneurial decision makings based on theory of Planned behaviors through empirical study. In order for that, this study sets four research hypothesis. In the empirical findings, 3 research hypothesis except H2 (subjective norms have positive relations with entrepreneurial intention) are accepted in statistically. Considering research findings, students' planned behaviors, such as albeit, internship, getting some certifications to have been regards as far away from entrepreneurship have positive relation with entrepreneurial intention and implementation. Entrepreneurship education and knowledge regarding start-ups given by Universities or private institutions should provide information to create imagination new venture business with spontaneity instead of giving intented contents concerning entrepreneurship when taking into consideration of result of hypothesis 2. In order words, entrepreneurship education to provide the self-efficacy is the right track for students.

• Atmosphere
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• v.24 no.1
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• pp.123-130
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• 2014

The automated prediction system for seasonal tropical cyclone (TC) activity is established at the National Typhoon Center of the Korea Meteorological Administration (KMA) to provide effective operation and control of the system for user who lacks knowledge of the system. For automation of the system, two procedures which include subjective decisions by user are performed in advance, and their output data are provided as input data. To provide the capability to understand the operational processes for operational user, the input and output data are summarized with each process, and the directory structure is reconstructed following KMA's standard. We introduce a user interface using namelist input parameters to effectively control operational conditions which is fixed or should be manually set in the previous version of the prediction system. To operationally use early prediction which become available through the automation, its performances are evaluated according to initial condition dates. As a result, high correlations between the observed and predicted TC counts are kept for all track clusters even though advancing the initial condition date from May to January.

• Journal of the Korea institute for structural maintenance and inspection
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• v.18 no.1
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• pp.10-18
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• 2014

Mechanically fastening FRP (MF-FRP) strips using nails and anchors, has been shown to provide a more ductile behavior to the strengthened structural element than using bonded FRP. To further advance the state of the knowledge on this strengthening method, the current study examined environmental effects for six months on MF-FRP beams. Reinforced concrete beams strengthened with mechanically fastened FRP strips and subjected to sustained loads for six months were exposed to outdoor weather and constant high temperatures ($40^{\circ}C$). For comparison, the behavior of RC beam with and without sustained loads was evaluated. Results from flexural tests did not show any significant degradation or change of failure mode as a result of sustained load and of environmental effects such as high temperatures and outdoor weather over a period of six months. Failure of the beams was governed by FRP delamination followed by concrete crushing as not much load applied to the nail and anchors because of slip effects.