• Journal of Advanced Navigation Technology
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• v.15 no.6
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• pp.1228-1233
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• 2011

NPR(Non-Photorealistic rendering) technique is developing by every years. NPR is inspired on artistic styles, which is painting, drawing, technical illustration, animation and cartoon. There have many application programs for NPR, which is popular and useful of animations, even on game industrial. In traditional computer graphics focused on non-photorealism, but this method need much more memory and time. Recent years, Many NPR methods present advanced rendering technique and real time technique using graphic accelerator. This paper propose to explain NPR with GPU programming.

• Journal of the Korean Solar Energy Society
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• v.23 no.1
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• pp.9-16
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• 2003

For the study of an effect that fin thickness and shape of heat exchanger have on the elevation of heat transfer efficiency, we make models of plate fin type heat exchanger and louvered fin type heat exchanger which was given a transformation of fin thickness in plate f)n type heat exchanger and louvered fin type heat exchanger which are often used now. And the effect of fin thickness on pressure drop and characteristics of heat transfer was experimented and analysed when air velocity and temperature of plate heating was a variable. The results of experiment shows below. Pressure drop shows larger in louvered fin type exchanger than in plate fin type exchanger, size of pressure drop shows like this order that fin thickness is 0.3mm, 0.2mm, 0.1mm. Mean heat transfer coefficient shows higher in louvered fin type exchanger than in plate fin type exchanger, size of mean heat transfer coefficient by fin thickness shows same in both case in louvered fin type heat exchanger and plate fin type exchanger like this order that fin thickness is 0.1mm, 0.2mm, 0.3mm.

• Korean Journal of Cleft Lip And Palate
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• v.6 no.1
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• pp.35-42
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• 2003

PAP (Palatal Augmentation Prosthesis) may be given to the patients with dysphagia; especially, who cannot achieve tongue-palate contact. PAP fills hard palate area where the tongue cannot make contact and then the distance of tongue elevation is shortened. 1bat may be expected to improve swallowing and to prevent from aspiration. The purpose of this report is to show the effects of PAP in patients with dysphagia through the videofluoroscopic study. Oral-pharyngeal swallowing post PAP is analyzed in 2 cases; one is a person who had subarachnoid hemorrhage due to aneurysmal rupture, right hemiparesis, hydrocephalus and aphamia. And the other is a person who had squamous cell carcinoma on mouth floor and he had radical neck dissection and marginal mandibulectomy. In this report, the rate of aspiration, the transit time and length measurements of anatomical structure are examined in the each frame of videofluoroscopy. The results are as follows; 1) PAP decreased the aspiration in both cases. 2) In the cases of patients with PAP, the pharyngeal transit time was decreased.

• Journal of Forest and Environmental Science
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• v.32 no.1
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• pp.68-73
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• 2016

We investigated structure and intensity of 267 echolocation calls that were collected from the five Korean Myotis species (M. nettereri, M. petax, M. ikonnikovi, M. macrodactylus and M. formosus). All the Myotis species produced typical FM call pattern with similar echolocation call shapes and outer shapes, producing steep, downward frequency-modulated calls. A pulse has two harmonies, which consist of the first harmony with wider bandwidth and the second harmony with narrower bandwidth. The PF of the first harmony is higher than that of the second harmony. The typical FM call structure, with two harmonies and wide bandwidth, might be highly related to fast flying and wide screening in the dense forests. In classification of the echolocation calls by DFA, most of calls from the five species could be well correctly classified. All calls of M. nettereri (100% of 17 calls), M. formosus (95.5% of 22 calls) and M. ikonnikovi (85.7% of 70 calls) could be well discriminated from those of the other species, whereas calls of M. petax and M. macrodactylus could be discriminated by 70.4% of 98 calls and 76.7% of 60 calls, respectively. Our results indicate that the five Korean Myotis species can be well identified by the echolocation calls with high correct classification by DFA.

• The Bulletin of The Korean Astronomical Society
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• v.42 no.2
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• pp.73.4-74
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• 2017

We report preliminary results from our radio study of X-ray selected complete AGN sample in the Local Universe (z < 0.05), using the KVN/KaVA. The main goal is to probe the parsec-scale radio properties of the X-ray selected AGNs, which has not been done systematically before. The BASS (Burst Alert Telescope AGN spectroscopic survey) sample from the Swift-BAT hard X-ray all-sky survey is the least biased AGN sample against dense gas/torus obscurations compared to optically selected AGNs, providing ideal targets to study the general properties of local AGNs in radio wavelengths. Combining our radio data with BASS X-ray/optical measurements, we will probe the relations of radio powers with the fundamental quantities of black holes such as bolometric luminosity, black hole mass, and Eddington ratio. Using these relations, we will discuss our current understandings of how accretions and jets of local AGNs are linked together, and what they imply for the nature of our AGN sample.

• Research in Mathematical Education
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• v.12 no.2
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• pp.85-108
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• 2008

In this study, we created, implemented, and evaluated the impact of proportional reasoning authentic investigative activities on the mathematical content and pedagogical knowledge and attitudes of pre-service elementary and middle school mathematics teachers. For this purpose, a special teaching model was developed, implemented, and tested as part of the pre-service mathematics teacher training programs conducted in Israeli teacher colleges. The model was developed following pilot studies investigating the change in mathematical and pedagogical knowledge of pre- and in-service mathematics teachers, due to experience in authentic proportional reasoning activities. The conclusion of the study is that application of the model, through which the pre-service teachers gain experience and are exposed to authentic proportional reasoning activities with incorporation of theory (reading and analyzing relevant research reports) and practice, leads to a significant positive change in the pre-service teachers' mathematical content and pedagogical knowledge. In addition, improvement occurred in their attitudes and beliefs towards learning and teaching mathematics in general, and ratio and proportion in particular.

• Proceedings of the KSPS conference
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• 2007.05a
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• pp.240-242
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• 2007

The goal of this paper is to investigate effects of three prosodic factors, such as phrasal accent (accented vs. unaccented), prosodic boundary (IP-initial vs. IP-medial) and coda voicing (e.g., bed vs. bet), on acoustic realization of English vowels (/i, $_I/$, $/{\varepsilon}$, ${\ae}/$) as produced by native (Canadian) and nonnative (Korean) speakers. The speech corpus included 16 minimal pairs (e.g., bet-bat, bet-bed) embedded in a sentence. Results show that phonological contrast between vowels are maximized when they were accented, though the contrast maximization pattern was not the same between the English and Korean speakers. However, domain-initial position do not affect the phonetic manifestation of vowels. Results also show that phonological contrast due to coda voicing is maximized only when the vowels are accented. These results propose that the phonetic realization of vowels is affected by phrasal accent only, and not by the location within prosodic position.

• The Bulletin of The Korean Astronomical Society
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• v.43 no.1
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• pp.59.1-59.1
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• 2018

On 2018 February 5 a gamma ray burst with trigger time 04:25:29.3 UT was detected by Swift BAT and this event was named GRB 180205A. We observed the optical afterglow of GRB 180205A starting from about 1 hour after the burst until February 22 in the optical bands with the 1m telescope of Deokheung Optical Astronomy Observatory (DOAO), the 1m telescope at Mt. Lemmon Optical Astronomy Observatory(LOAO) and the 0.8m and 0.25m telescopes at McDonald Observatory. According to the fireball model, which is a well-accepted and conventional model for the afterglow of the GRB, the mechanism of the afterglow is that the expanding external blast wave of the GRB successively collides with the ambient medium and loses its energy, and as a result emits radiation at wavelengths longer than gamma rays. Here we present optical photometry and light curve of the afterglow in the R band and analyze it to characterize GRB 180205A.

• Fashion & Textile Research Journal
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• v.11 no.2
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• pp.219-230
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• 2009

The purpose of this paper is to study characters' make-up coordination that changes the narrative of the fantasy movies to a visual fantasy, especially it focuses on the post-modern features from the works of Tim Burton, a post-modernist. The contents of the study are, firstly, studying post-modernism that influenced the works of Tim Burton, secondly, researching (1988), (1989), (1990), (1992), (2003) and (2005) and their main characters' make-up design. Thirdly, analyzing the otherness and plural-code that are the post-modern characteristics expressed on characters' make-up coordination of fantasy movies. The otherness means the division of the middle and the surroundings and the rise of the outsiders. Fantasy characters that scares off human such as ghosts, aliens, apes, kidults, mutations, man-made men are in the middle. The plural-code takes the symbolic and pluralistic dimension in to the movie, mixes the sign system, and which natural and supernatural system cross over. In the movies, Beetle Juice who was both ghost and devil expresses life and death, Bat man, Cat woman, Penguin man expresses human and animal, and Edward means human and inhuman. Willy Wonka's makeup makes him look younger, but his grown-up-like clothes show doubleness. For that matter, make-up coordination is the mirror of reflection of period and human being's inner life.