• Communications of Mathematical Education
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• 제28권3호
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• pp.353-366
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• 2014

Recently, the widespread usage of 3D-Printing has grown rapidly in popularity and development of a high level technology for 3D-Printing has become more necessary. Given these circumstances, effectively using mathematical knowledge is required. So, we have developed free web tools for 3D-Printing with Sage, for mathematical 3D modeling and have utilized them in college education, and everybody may access and utilize online anywhere at any time. In this paper, we introduce the development of our innovative 3D-Printing environment based on Calculus, Linear Algebra, which form the basis for mathematical modeling, and various 3D objects representing mathematical concept. By this process, our tools show the potential of solving real world problems using what students learn in university mathematics courses.

• The Journal of the Korea Contents Association
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• 제19권11호
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• pp.57-70
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• 2019

Despite both the Korean version of and seemed to be the most popular in China, the and the , which localized the same format, differed at least in terms of viewership. Focusing on these two opposing cases, this study examines the characteristics and considerations of the localization transformation through in-depth interviews with experts in China.. As a result, was positive in terms of character diversification and online media interworking effects. However, the experts recognized that factors such as the confusion of character combinations due to frequent change of performers, frequent absences, conservative characteristics of Chinese state broadcasting that emphasized educational contents, and burden of localization due to changes in mission and challenge form each time were negatively affected. On the other hand, lacked the effect of online media interaction and lack of diversity of performers. However, the use of star actors' celebrities, the merits of actors with the characteristics of Chinese historical and cultural spaces, the use of Chinese flavors and fragrances, and similar types of missions and maintaining a stable composition each time favored localized production formats.

• Journal of Aquaculture
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• 제20권1호
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• pp.7-13
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• 2007

The seed production of Ecklonia stolonifera Okamura was studied under laboratory conditions through the embryonic sporophyte stage and the field cultivation was conducted in eastern coast of Korea. The germination of zoospores occurred within 3 days and the growth of gametophytes was most rapid at $25^{\circ}C$ and $20\;{\mu}mol{\cdot}m^{-2}s^{-1}$. Sporophyte growth was highest at $20^{\circ}C$ and $20\;{\mu}mol{\cdot}m^{-2}s^{-1}$ and lowest at $25^{\circ}C$ and $80\;{\mu}mol{\cdot}m^{-2}s^{-1}$. In the nursery culture of E. stolonifera lasting for 2 weeks in January, the initial blade length of E. stolonifera (about $500\;{\mu}m$) grew to $526.3{\pm}176.0\;{\mu}m$ at water temperature of $12.05^{\circ}C$. The blade length and width reached their maxima in July, after which the ends of blade and stem began to degrade with the increase in water temperature. The degraded end of the blade started to regenerate in October, when water temperature began to decline. This species can be considered a potential candidate for aquaculture, increasing in the availability of raw material and aiding in recovery of seaweed bed.

• Journal of Korean Society of Environmental Engineers
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• 제27권11호
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• pp.1198-1204
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• 2005

The objectives of this study were to isolate and culture methanotrophs and to apply them for biological removal of nitrogen and phosphorous. Methanotrophs (dominant species: Methylomonas methanica) were isolated from a landfill cover soil, cultured in a NMS medium, and analyzed to reveal their characteristics of growth and nutrient removal. The methanotrophs themselves can produce substantial amount of organic substances(as COD) including methanol, formaldehyde, and formate, as carbon sources required for denitrification. For instance, the production rate for methanol was $8\;mg/L{\cdot}hr$. Moreover, the analysis of nitrogen and phosphorous in the sludge suggested that the methanotrophs assimilate nitrogen and phosphorous as growth substances.

• The Journal of Korean Institute for Practical Engineering Education
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• 제3권1호
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• pp.143-148
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• 2011

In this study, the damage to the bridge structure such as the crack and water leakage was assessed due to the increase of the vehicle load and traffic on the roads. In order to make this into the database, as a part of the automation system development for the bridge maintenance, the students themselves designed and developed their own inspection robotic system based on the idea of robots currently being developed overseas. Its field testing was conducted and its applicability assessed. During the design and fabrication, its connection to the details of the unit course taken in the undergraduate level was focused. In terms of new product development, the field application was possible due to the support of the academic-industrial cooperation firms. Furthermore, through the survey of the students, the improvements in the practical skills of the students who participated in this development process was affirmed.

• Journal of Korean Society of Forest Science
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• 제107권2호
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• pp.126-139
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• 2018

This study aimed to correct some inappropriate Korean gymnosperm terminologies. Rational Korean equivalents to some international terms are suggested to replace the conventional misleading words impling as if gymnosperm plants have flowers and/or fruits like angiosperm plants do as reproductive structures. So, the rectification has been primarily made on reproductive parts including cone, microsporangium (microsporangia), ovulate cone, ovuliferous scale, pollen, and strobilus (strobili). Also, additional suggestions have been made for some expressions other than reproductive parts, such as conifers (coniferous plants), softwood and hardwood misused in Korean traditional practices for a long period of time.

• Journal of Digital Convergence
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• 제18권10호
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• pp.409-418
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• 2020

The study focused on Jean-Luc Godard's about the relationship between visual effects and psychoanalysis of the film. Godar set up an interpreter for communication between the scenario adaptors and producers, producers and directors, producers and interpreters, and assistants in However, the role of an interpreter is based on the premise that although there is an interpreter, accurate communication is impossible. Such a break in communication is used as a strategy to clearly clarify Godar's own direction while revealing the difficulties of filmmaking as the gap between the two sides in filmmaking becomes clear. Based on Freud's theory of psychoanalysis, the meaning of the study is to analyze Jean-Luc Godard's relationship with filmmakers, directors, writers, actors and how the director visually reproduces the conflict among the invisible participants in the film.

• (The) Research of the performance art and culture
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• 제39호
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• pp.167-196
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• 2019

Geugyesuryeonguhoe founded the Silheommudae and chose Nikolai Vasilevich Gogol's Revizor as the founding performance. This Revizor theater performance was a performance equivalent to the founding performance of the Geugyesuryeonguhoe, so it had to be based on the discussion and consensus of the members. Nevertheless, the reasons for selecting this work, the actual performance situation, and whether or not it was successful were not properly addressed in the research data so far. As a result, Revizor performance of Silheommudae did not escape the powerful influence of Revizor theater performance performed at Tsukiji(築地) theater in Japan. In addition, the original design of stage, acting and acting concept of Silheommudae was not confirmed. After this performance, the change of the performance method of Geugyesuryeonguhoe was inevitable. And Geugyesuryeonguhoe was forced to carry out its own reflection on the problems in the stage process.

• KIPS Transactions on Software and Data Engineering
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• 제10권11호
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• pp.457-464
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• 2021

The advent of the big data era has enabled the rapid development of deep learning that learns rules by itself from data. In particular, the performance of CNN algorithms has reached the level of self-adjusting the source data itself. However, the existing image processing method only deals with the image data itself, and does not sufficiently consider the heterogeneous environment in which the image is generated. Images generated in a heterogeneous environment may have the same information, but their features may be expressed differently depending on the photographing environment. This means that not only the different environmental information of each image but also the same information are represented by different features, which may degrade the performance of the image analysis model. Therefore, in this paper, we propose a method to improve the performance of the image color constancy model based on Adversarial Learning that uses image data generated in a heterogeneous environment simultaneously. Specifically, the proposed methodology operates with the interaction of the 'Domain Discriminator' that predicts the environment in which the image was taken and the 'Illumination Estimator' that predicts the lighting value. As a result of conducting an experiment on 7,022 images taken in heterogeneous environments to evaluate the performance of the proposed methodology, the proposed methodology showed superior performance in terms of Angular Error compared to the existing methods.

• Cartoon and Animation Studies
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• 통권33호
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• pp.55-78
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• 2013

The issues on the representation of digital images, the uncanny is not considered aesthetically but must be overcome. It seems that the future of visual media using digital images, depends on the development and advancement of the digital technology. However, the Brothers Quay regarded as unique and experimental animators, focus their attention towards the past rather than the future. They trace back to the origin of the media, reproducing, manipulating, and representing gestures in oder to restore the shock and thrill delivered in film and animation. The Brothers Quay explore the uncanny of gestures through the mechanism of medium. They work in a wide range of genres, from animation, live action to dance film. The creaking spasms, which create the feeling that the movement does not belong to this world, and the strange gestures, reveals the flicker of the still projection and make audiences recognize gestures in the true meaning of the word. While they animate live actors and dead objects like automata, the hidden desires are revealed over screen. In this paper, focusing on the works of Brothers Quay, I tried to explore the uncanny of gesture based on Freud's and Jentsch' theory of uncanny.