• Korean Institute of Interior Design Journal
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• v.20 no.6
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• pp.282-290
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• 2011

The public festival has a positive function to produce more pleasure and better life to urban residents on viewpoint of culture marketing. A research of relation between urban festival's media light environmental and personality type of audiences would give a design guide line on selection of festival media contents. The scope of study festival bounds three urban fesitvals from two thousand eight to two thousand ten. The personaliy indicator is used by self-mootioring scale called NEO-PI-R that Synyder, psychologist established in 1987. This indicator divides into five classes - N: Neutroticism, E: Extaversoon, O: Openness, A: Agreeableness, C: Conscientiousness. As a result, Anaysis of urban festival's media light environments considering five personality type of audiences are described, N type prefers the change a lot and low stability. E type prefers three dimensional video and dynamic production with passionate pressure. O type prefers radiates objects to promote the imaginative creatures with speculation. A type prefers contemplation arts with one way direction. C type prefers orderly art layout with accomplishing intention. The statistics datas anaynize ten factors to describe the urban complicated fesitival guide line clearly.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.20 no.1
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• pp.69-75
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• 2020

This paper introduces the parking guide service developed to address the inconvenience of parking in areas where demand for parking spaces is high, such as busy streets and tourist attractions. Due to difficulties in measuring and developing the actual parking lot while driving the car, we created a temporary parking lot and created Arduino RC Car to replace the actual car. Video processing based on Open CV allows users to identify the entire parking lot, parking space, and completed parking space, and track moving cars, and this information has been developed to enable users to see through the application. The application allows the user to book the desired parking space and introduce a way-finding algorithm to guide them through the optimal path to the selected parking compartment.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.933-937
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• 2009

The IPTV which was commercialized and is being serviced to customers at present has a complicated GUI (Graphical User Interface) to provide two-way services and a remote control containing more than 40 buttons unlike the conventional TV. Accordingly, the remote control becomes one of the causes that make the usability of the IPTV worsen. In this paper, we suggest a LED button guide system as a solution to improve a usability of the IPTV, and analyze the effects of the interface obtained from the user evaluation on the user action.

• The KSFM Journal of Fluid Machinery
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• v.15 no.6
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• pp.25-30
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• 2012

Renewable energy has been interested because of fluctuation of oil price, depletion of fossil fuel resources and environmental impact. Amongst renewable energy resources, hydropower is most reliable and cost effective way. In this study, to develop a new type of micro hydro turbine which can be operated in the range of very low specific speed, a cross-flow hydro turbine with simple structure is proposed. The turbine is designed to be used at the very low specific speed range of hydropower resources, such as very high-head and considerably small-flow rate water resources. CFD analysis on the performance and internal flow characteristics of the turbine is conducted to obtain a practical data for the new design method of the turbine. Results show that optimized arrangement of guide vane angle and inner guide angle can give contribution to the turbine performance improvement.

• Molecules and Cells
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• v.44 no.12
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• pp.911-919
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• 2021

The virus-induced genome editing (VIGE) system aims to induce targeted mutations in seeds without requiring any tissue culture. Here, we show that tobacco rattle virus (TRV) harboring guide RNA (gRNA) edits germ cells in a wild tobacco, Nicotiana attenuata, that expresses Streptococcus pyogenes Cas9 (SpCas9). We first generated N. attenuata transgenic plants expressing SpCas9 under the control of 35S promoter and infected rosette leaves with TRV carrying gRNA. Gene-edited seeds were not found in the progeny of the infected N. attenuata. Next, the N. attenuata ribosomal protein S5 A (RPS5A) promoter fused to SpCas9 was employed to induce the heritable gene editing with TRV. The RPS5A promoter-driven SpCas9 successfully produced monoallelic mutations at three target genes in N. attenuata seeds with TRV-delivered guide RNA. These monoallelic mutations were found in 2%-6% seeds among M₁ progenies. This editing method provides an alternative way to increase the heritable editing efficacy of VIGE.

• School Mathematics
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• v.6 no.4
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• pp.345-359
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• 2004

Many researchers have studied students' error patterns in learning mathematics but the results haven't much effected on teaching situation. This paper is to find out how the results have been reflected on 6th and 7th Korean elementary school mathematics textbooks, workbooks, and teachers' guide books. The focuses of analysis are the four; (a)Type of materials, (b)Type of problems, (c)Type of errors and number of rela- ted problems, and (d)organization and explanation type. Results indicate that both 6th and 7th materials don't use effectively students' error patterns to teach computation, in particular, 7th textbooks scarcely treat them. It suggests that we should grope a way to use the fruitful results of this area to teach mathematics effectively.

• Journal of Biomedical Engineering Research
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• v.23 no.4
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• pp.263-268
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• 2002

The image quality of imageguide depends on the structure, material, length of microfibers and the phenomena such as cross-talk and leaky ray between adjacent fibers. These Parameters should be considered as important factors in the image transmission qualify of fibers. However it is considered to be very difficult to assess all the parameters in a consistent way Therefore. two image characteristics, image resolution and image brightness are measured and analyzed to determine the image quality of imageguide. But the exact methods to measure two image characteristics of imageguide are not reported. In this study, the image brightness of imageguide for ultrathin endoscope is determined by measuring of the numerical aperture. the packing fraction and the attenuated power ratio of imageguide. Especially it is possible to obtain more exact results from measuring the numerical aperture of whole image guide than those from theoretical calculation of the single microfiber in an image guide. The image brightness of the image guide which has $3.1\mu m$ microfibers is about 37% less than that with $4.1\mu m$ microfibers.

• Journal of the Korea Convergence Society
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• v.9 no.2
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• pp.119-124
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• 2018

The augmented reality(AR) technology enables to acquire various image information at the same time by combining virtual image information with the user's viewpoint. These AR technologies have been used to visualize patients' organs and tissues during surgery and diagnosis in the fields of Image-Guide Operation, Surgical Training, and Image Diagnosis by medical convergence, and provides the most effective surgical methods. In this paper, we study the technical features and application methods of each element technology for medical fusion of AR technology. In the AR technology for medical convergence, display, marker recognition and image synthesis interface technology is essential for efficient medical image. Such AR technology is considered to be a way to drastically improve current medical technology in the fields of image guide surgery, surgical education, and imaging diagnosis.

• Journal of the Korea Convergence Society
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• v.10 no.8
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• pp.97-103
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• 2019

The purpose of this study is to identify the needs of domestic and overseas tourists in the growing travel industry and platform industry and propose a customized matching platform service. A survey was conducted on a total of 106 people from domestic teenagers to 60s or more and case studies with domestic travel related and expert matching application. According to this survey, It was possible to identify the inconveniences and necessary needs during the trip. As the aging society is on the way, It propose a local guide matching platform service that can cover not only 20s and 30s but also 40s ~ 60s, which will be a competitive platform service in the age of 100 years. However, since this study have studied a somewhat comprehensive age range from 20 to 60 years or older, future studies will require intensive research on subjects aged 40 to 60 years or older.

• Journal of The Korean Association For Science Education
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• v.22 no.3
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• pp.466-477
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• 2002

It was proposed that proper problem solving practice should improve students' questioning in physics. In the previous researches, improvement in students' questioning was observed after practice of making questions given the examples of desirable questions. In this study, the problem solving strategies used by experts were introduced to students in the form of step-by-step guide to follow in problem solving practice. The directions in the guide were concrete and operational for students to understand the expected behaviors explicitly. It was assumed that students could pinpoint the difficulty specifically through this guide, which would result in positive effects on students' recognition and expression of their own questions. The subjects in this study were college freshmen enrolled in the introductory physics for science or engineering major. The physics problems from the textbook were solved and practiced in the traditional way for controlled group. Worksheets designed to follow experts' problem solving strategies were used for the experimental group. Two groups were taught in the same way during lecture part of the class. Students were asked to describe the difficulties they had during homeworks or tests. Questions in this study means these descriptions written by students although they were not necessarily in the form of interrogative sentences. The questions were analyzed both in quantity and quality. Quantitatively, more students spontaneously turned in their questions in the experimental group than in the controlled group. Regarding the quality, there were more students in the experimental group than in the controlled group who described their difficulties in detail or recognized the need for the procedural knowledge.