• Journal of Korea Water Resources Association
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• v.37 no.5
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• pp.375-386
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• 2004

A water shortage is one of the most important factors for development and management of water resources. For reliable water shortage measurement in a stream, Korea Water Resources Corporation(KOWACO) founded five foot Parshall flume at Yong-dam experimental watershed in 2000. The Parshall flume has a specially designed shape to facilitate flow measurements by eliminating sediment deposition problem that could lead to an incorrect measurement. In this study, computational fluid dynamics(CFD) model was used to analyze flow behavior of Parshall Flume under free discharge of five headwater level cases. The flow rates computed by CFD model are compared with those by ISO's formula, USBR's formula and stage-discharge rating curves. Flow rates computed by ISO's and USBR's formula are mostly same, but flow rate by CFD model is larger than empirical value by 9% and flow rate by stage-discharge rating curves is less than empirical value by 16%.

• Korean Journal of Plant Tissue Culture
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• v.21 no.4
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• pp.233-237
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• 1994

Plant regeneration system via somatic embryogenesis in leaf explant cultures of Gentiana scabra var. buergeri has been established. Leaf segments formed calli when cultured on MS medium supplemented with 0.5 mg/L 2,4-D and 2 mg/L BAP After transferred to SH medium supplemented with 0.5 mg/L 2,4-D, 2 mg/L CPA and 0.5 mg/L kinetin, the callus became embryogenic. The embryogenic callus was subcultured every 3 to 4 weeks. Upon transfer onto SH basal medium the embryogenic callus gave rise to numerous somatic embryos, which subsequently developed into plantlets. The regenerated plants were potted in an artificial soil with mixture (peatmoss : pearlite : vermiculite : 2 : 1 : 1) and transplanted to the soil after kept under a high humidity for two weeks. A total of 78 plants out of 105 regenerated plants survived in the soil. Phenotypic variations in height, number of stems and the flowering time were observed in tile regenerated plants. Cytogenetical analyses showed no chromosomal variation.

• Journal of the Korea Convergence Society
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• v.11 no.10
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• pp.355-361
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• 2020

The squat is an exercise that can effectively improve the muscle strength of the lower body, which can be performed in a variety of places without restrictions on places including homes. However, injuries due to incorrect motion or excessive angles are frequently occurring. In this study, we developed a single sensor-based squat angle measurement system that can inform the squat angle according to the correct motion during the squat exercise. The sensor module, including the acceleration sensor and the gyro sensor, is attached to the user's thigh. The squat angle was calculated using the complementary filter complementing the pros and cons of acceleration and gyro sensor. It was found that the calculated squat angle showed the proper correlation compared to the squat angle measured by a goniometer, and the influence of the coefficient of the complementary filter on the accuracy was evaluated.

• Journal of Korean Library and Information Science Society
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• v.40 no.1
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• pp.471-492
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• 2009

Inquiry instruction is a dynamic process that uses questioning and answering to have students actively participate in their own learning. Inquiry instruction is a teaching technique in which teachers do not provide knowledge, but help students discover knowledge by themselves. However, Inquiry instruction currently has problems of lack of connection between inquiry process and school library, lack of collaboration between the media specialist and teacher, and lack of applicable models. Information literacy is the ability to access, evaluate and use information. Information literacy process is closely related to the inquiry process. Thus, this study suggested an elaborative model in inquiry instruction using information literacy process. This research derived the skills, strategies, activities of inquiry instruction model by comparing and analyzing Lippitt's inquiry process with information literacy process(Big6 Skills, Pathways to Knowledge, I-Search, 8Ws, Inquiry Process, Inquiry in the Research Process). Based on the results, this study designed an elaborative model in inquiry instruction using information literacy process.

• Journal of the Korea Organic Resources Recycling Association
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• v.23 no.2
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• pp.61-66
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• 2015

In this study, manufacture of kitchen garden soil and its application on the growth of Lettuce has been performed. The optimal ratio of various raw materials for pH, total nitrogen, phosphate, cations, and salt content was found to be 49 : 35 : 10 : 5 : 1(w/w) in peatmoss, livestock manure, cocopeat, zeolite, and microbial fertilizer, respectively. In the growth experiment using Lettuce, the manufactured soil obtained 21% & 20% increase in leaf length and width, 17% increase in chlorophyll, and 22% in biomass, compared to the control.

• Proceedings of the Korea Society of Costume Conference
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• 2003.05a
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• pp.34-34
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• 2003

본 연구는 체형의 특성이 현저히 나타나는 40~50대의 Plus-size 여성을 대상으로 체형의 특징이 고려된 치수체계에 대해 맞음새가 우수한 재킷을 개발하고, 이 원형을 토대로 하여 체형의 단점을 보완할 시각적 효과를 연구하기 위해 Plus-size에 해당하는 여성을 선정하여 수트(suit)를 제작한 후 착의 평가하여 Plus-size에 적합한 수트를 제안하는데 목적을 두고 있다. 결과를 요약하면 다음과 같다. 1. Plus-size 여성의 착용실태를 파악하기 위해 실시한 착용실태 조사는 판매자의 측면의 심층면접과 소비자 측면의 착장조사로 구분하여 조사하고 분석하였다. 착용실태조사 결과, Plus-size 여성은 의복구매시 맞음새와 편안함을 중시하고 상완부와 어깨의 두께, 가슴둘레와 복부의 비만등의 체형단점을 갖게 되므로 판매자측에서는 의복제도 시에 등품, 앞품, 상완부, 복부의 여유분을 고려하고 있었다. 시각적 효과로는 세미피트 스타일의 프린세스 라인과 허리선+20, 30cm의 재킷길이, 그리고 테일러드 칼라, 스테인 칼라, 라운드 네크라인이 판매자과 소비자의 양측면에서 선호되고 있었다. 2. Plus-size 여성의 체형에 맞음새가 우수한 재킷원형을 개발하기 위해 Plus-size 여성복의 재킷 원형 중 4종의 기존원형을 선정하고, 착의 피험자 3인을 대상으로 3차에 걸친 착의실험을 통해 연구 원형을 개발하고 평가단을 구성해 객관적인 평가 33문항에 대한 외관 관능검사를 실시하였다. 1) 가슴둘레 여유분을 8~9cm, 허리둘레 여유분을 6~7cm, 엉덩이둘레 여유분을 6~8cm로 적용하여 맞음새를 향상시켜 날씬해 보이는 효과를 높였다. 2) 진동깊이 계산식은 (B/10+10.5)+2cm 적용하고, 진동두께 계산식은 (B/8-1.5)+2cm를 적용함으로써 진동깊이와 진동두께의 편차가 작아짐으로 인해 소매부위와 진동부위의 맞음새를 향상시켰다. 3) 가슴둘레의 증가에 따라 등길이에 앞길이 치수를 증가시키는 계산식을 설정하여 앞가슴둘레의 맞음새를 향상시켰다. 4) Plus-size여성의 경우 허리부분의 신체적합성을 높이기 위하여 사이드 판넬(side panel)의 재킷원형으로 하였다. 앞 허리와 배 부분의 지방 침착이 크므로 앞 허리둘레 다아트 폭과 앞판 사이드 판넬(side panel) 솔기 다아트 폭을 작게 설정하고, 뒤판 사이드 판넬 솔기 폭을 크게 설정하였다. 5) 어깨끝점 사이길이는 다른 부위의 체지방 침착과 같이 비례적으로 증가하지 않으므로 표준체형에 비해 좁게 설정하였다.

• Applied Microscopy
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• v.25 no.3
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• pp.75-81
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• 1995

The microstructural characterization of ternary $ZnS_{x}Se_{1-x}$(x=0.085) on GaAs(001) substrate grown up to $2{\mu}m\;at\;300^{\circ}C$ by molecular beam epitaxy(MBE) which has a single growth chamber was investigated by high resolution transmission electron microscope (HRTEM) working at 300 kV with point resolution of 0.18nm. The interface in the ZnSSe/GaAs specimen maintains a pseudomorphism with the substrate, but the epilayer has high density of stacking faults and moire fringes. The pits which had formed along <111> direction were found at the interface of ZnSSe/GaAs. The pits were responsible for producing defects in both epilayer and substrate. The wavy interface which has the difference of 15nm in height was found to maintain the pseudomorphism with the substrate and no stacking faults were found around the interface. However there exists faint and fine moire fringes in the epilayer near interface.

• Journal of the Korea Computer Graphics Society
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• v.23 no.5
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• pp.67-73
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• 2017

We propose several techniques which can be employed in a 3D fitness program for monitoring and correcting user's posture. To implement a 3D fitness program, improved reference motion generating techniques and visualizing techniques are necessary. First, in order to understand the difference between the user and the reference movement of a professional, a retargeting method between two different body shapes are studied. Second, the problem of self-occlusion, which occurs when using a low-cost depth sensor to represent complex motions, is solved by using a sample database and time consistency. The system proposed in this paper evaluates the user's posture considering the physical characteristics of the user, and then provides feedback to the user.

• Journal of Digital Convergence
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• v.13 no.2
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• pp.343-349
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• 2015

This paper aims to propose the typology suitable for games by analyzing the fashion styles of game characters and define the characteristics by type. The data collected was classified into the style groups with similarities, and the game character styles were named using representative terms. Then, five styles were identified and analyzed with the focus on clothing, hairstyle, and accessories: Creative Style, Attractive Style, Grotesque Style, Usual Style, and Suit Style. Creative Style was the unique style with partial addition or removal as the creative design. Attractive Style expressed the sexual attraction by design with significant exposure of body parts and skintight design. Grotesque Style showed grotesque, eerie, and dreary design. Usual Style was a plain and practical style. Finally, Suit Style was a kind of armor covering the whole body. The analysis results in this paper will bridge the difference of opinions between gamers and developers related to fashion style and, finally, help to enhance the competitiveness of game design.

• Korean Journal of Plant Resources
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• v.12 no.4
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• pp.289-296
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• 1999

The availability of Bacillus polimyxa 'HB 26-5' as a biological control agent was investigated. The antagonistic bacteria Bacillus polymyxa 'HB 26-5' grew well on the media at pH 7.0 and the optimum growth temperature was $25^{\circ}C$. The pH of the media changed to weak acid(pH 6.1~6.5) at the beginning of incubation, but to weak alkali(pH 7.8~8.2) at 7days after incubation. The best carrier to enhance colonization of the bacteria were the mixture of rice bran and peat, or rice bran and kaoline, in those formulation the density of the bacteria was changed slightly, though the density was beginning to decrease 3 weeks after application at field. In view of the physical characteristics of the formulation for the density maintenance during storage such as the hardness and the size, the best one was the formulation consisted of sodium alginate 2%, kaolin 15% and rice bran 3%.