• Title/Summary/Keyword: 윤기병

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A Research on Generation of Prototypes for Chosun Upper-class Housing - Space Planning with 'Yaejae' Logic Model - (조선(朝鮮) 상류주택(上流住宅)의 형태학적(形態學的) 원형생성(原型生成) 연구(硏究) - 예제(禮制) 논리(論理) 모델에 의한 공간계획(空間計劃) -)

  • Yoon, Ki-Byung;Hong, Seung-Jai
    • Journal of architectural history
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    • v.6 no.3 s.13
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    • pp.45-59
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    • 1997
  • One of the main purposes of architectural history is the analysis of existing designs in order to find laws and orders of certain types, while space planning emphasizes the generation of design. In this study, relational space planning methodology is used to generate Chosun upper-class housing prototypes based on 'Yaejae' logic model. During the Chosun Dynasty era in Korea, Confucianism was the ruling ideology for its society. The patio type house was the main upper-class housing type during the Chosun Dynasty, and it can be viewed that space planning was heavily influenced by the law of 'Yaejae' in Confucianism. The logic of 'Yaejae' can be interpreted as relationships between spaces. Relational space planning methodology that reasons through constraint propagation is used to generate prototypes. Prototypes are compared in order to verify actual applications of the logic into space planning.

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Preparation of Copper-coated Graphite Composite Powder by Hydrometallurgical Process (습식법에 의한 동-흑연 복합분말 제조)

  • 김동진;정헌생;윤기병
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.3 no.1
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    • pp.75-84
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    • 1993
  • Copper coating on graphite powders was carried out by cementation process from copper sulfate solution. Effects of operation variables such as copper ion concentration, stirring speed, reaction time and temperature were investigated to obtain optimum conditions for continuous and uniform copper coating on graphite powders. The activation energy of the copper coating process was found to be 3. 59kcal/mole.

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Doctor Blade Tape Casting of In-based Low Melting Point Alloy (In 계 저융점합금의 닥터 블레이드 테이프캐스팅)

  • Youn, Ki-Byoung
    • Journal of Korea Foundry Society
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    • v.35 no.3
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    • pp.62-66
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    • 2015
  • Tape casting is an important forming operation used to prepare flat sheets in the various industries. In this study, Doctor Blade tape casting of In-based low melting point alloy was carried out. The purpose of this investigation was to determine the possibility of applying the Doctor Blade tape casting process to the manufacture of low melting point alloy sheets that can be used as thermal fusible parts of battery safety systems. In-based molten alloy that has a melting point of $95^{\circ}C$ was produced; it's viscosity was measured at various temperatures. The molten alloy was used as a slip in the caster of the Doctor Blade tape casting system. The effects of the molten alloy temperatures and carrier speeds on the produced sheet shape were observed. For the casting conditions of 1.5 cm slip height, $120^{\circ}C$ slip temperature, 0.05 mm blade gap and 60 m/min. carrier speed, an In-based alloy thin tape well shaped with 0.16 mm uniform thickness was continuously produced.

Yield Loss Assessment and Determination of Economic Thresholds Limits against Soybean Anthracnose (콩탄저병의 피해 해석 및 요방제 수준 설정)

  • Moon, Youn-Gi;Lee, Jae-Hong;Choi, Jun-Keun;Kang, An-Seok;Han, Seong-Sook
    • The Korean Journal of Pesticide Science
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    • v.14 no.2
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    • pp.133-137
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    • 2010
  • A field investigation was carried out for two years to analyze yield loss due to soybean anthracnose caused by Colletotrichum truncatum and to determine its economic threshold limit. Anthracnose severity in terms of % diseased pods was negatively correlated with yield, number of normal seeds per plant and number of pods per plant, and positively correlated with % abnormal seeds with correlation coefficients of -0.85, -0.78, -0.64, and 0.80, respectively. A simple linear regression model was obtained as Y=-1.7781X+164.22 with $R^2$=0.8092, when the soybean yields (Y) were predicted using anthracnose severity (X) as an independent variable. The yield levels could be predicted as high as 80.92%. Based on this equation, spray threshold without economic considerations was estimated as 6.9 in % pods infected with anthracnose. Economic threshold limit and economic spray threshold able to compensate the costs of fungicide sprays were determined as 11.9% and 9.5%, respectively.

An Analysis on Metaphorical Thinking in Design Process (디자인 과정에서 나타난 은유사고의 분석)

  • 이한석;윤기병;이정규
    • Archives of design research
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    • v.15 no.4
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    • pp.307-316
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    • 2002
  • Metaphor thinking is a kind of intuitive thinking and plays a central role in design process. But there are not many researches on this topic because it happens in designer's mind during design problem solving. In this paper, we considered cognitive aspects of metaphorical thinking as they cropped up in the process of design concepts development. As a method of cognitive experiment we used a protocol analysis of the design review reports. At the end of this research we concluded that metaphorical thinking is engaged in restructuring of new frames and reconciliation of conflicting frames for the development of new design ideas and concepts. This role of metaphorical thinking makes the design thinking divergent and the design process creative.

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Development of a 32 Channel EEG and Evoked Potential Mapping System (32채널 뇌파 및 뇌유발전위 Mapping 시스템 개발)

  • Ahn, C.B.;Yoon, G.B.;Park, D.J.;Yoo, S.K.;Lee, S.H.;Ham, Y.J.;Kang, M.J.;Kim, D.J.
    • Proceedings of the KOSOMBE Conference
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    • v.1995 no.11
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    • pp.86-89
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    • 1995
  • A clinically oriented 32 channel Electroencephalogram (EEG) and evoked potential (EP) mapping system has been developed. The EEG and EP signals acquired from 32-channel electrodes are amplified by the pre-amplifier located near patient and are then tither amplified by main amplifier. An automatic artifact rejection scheme is employed using a neural network by which examination time is reduced substantially. Auditary and visual stimuli are used for the evoked potential mapping. A user-friendly graphical interface based on the Microsoft Window 3.1 is developed for the operation of the system. Statistical databases for the poop and individual comparisons are also included to support statistically based diagnosis.

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A Research on the Uses of Storytelling Approach for Architecture (건축분야에서의 스토리텔링 기법 활용방안 연구)

  • Yoon, Ki-Byung
    • Journal of the Korean housing association
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    • v.18 no.1
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    • pp.53-60
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    • 2007
  • Storytelling approach is the way to formulate and solve problems using stories. Story is a means to understand and react everyday life that can be regarded as multi-dimensional problems. The approach becomes popular in various fields in conjunction with digital technology. In particular, it is used to solve problems in relation to whole context. In design, storytelling approach is used to clarify design constraints. It can be used to clarify and communicate thoughts for design artifacts, and to understand how the artifacts might be used in particular circumstances. In particular, the approach is useful to use under uncertain circumstances. In architecture, storytelling approach can be used in the area of design generation, design critique and capturing design knowledge. In design generation, it can be used to describe and formulate design experiences rather than simple designing artifacts. The approach formalizes design based on stories of user experiences. Digital technology such as virtual reality can be used to experience designed spaces for design modifications. In design critique area, it can be used to fill uncertain facts for historical buildings as welt as different from present status. Such stories can be used to build digital modeling and used to open criticism. Stories can be used to formalize knowledge in architectural domain as a form of implicit knowledge for certain projects. In architecture, it often is required to design types of environment never experienced before as well as to accomodate fast changing technologies. Storytelling methodology can be used as a method to cope with uncertainty and complexity in design requirements along with accumulating design knowledge.

'Hyowon6', a Mid-Late Maturing Rice Variety with High Quality (고품질 중만생 벼 품종 '효원6호')

  • Im, Da-Eun;San, Mar Lar;Jang, Seong-Gyu;Park, So-Yeon;Jin, Sang-Hyeon;Kim, Yong Chul;Ham, Tae-Ho;Kwon, Soon-Wook
    • Korean Journal of Breeding Science
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    • v.50 no.4
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    • pp.529-533
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    • 2018
  • Hyowon6, a mid-late maturing, good eating quality rice variety with multi-resistance, was developed by the rice breeding team of Pusan National University in 2013. This variety was derived from a cross between Hwayeong (as a multi-resistant parent) and Koshihikari (as a good eating quality parent). Selection by the pedigree breeding method was carried out until the $F_8$ generation. A promising line, JS14-12-36-8-5-3-1-1-1, was developed and designated as HY103 in 2013. This variety headed on August 22, which was 11 days later than that of Hwayeong. The culm length and panicle length of Hyowon6 was 85.7 cm and 21.1 cm, respectively. The number of panicles per hill was 14.5 and the number of grains per panicle was 101.7. The ratio of ripened grain was approximately 92% and the 1,000-grain weight was approximately 21.36 g for brown rice, which were similar to those of Hwayeong. Hyowon6 was moderately resistant to lodging and also to neck blast, leaf blight, and stripe virus. The glossiness value of Hyowon6 was 83, which was considerably higher than that of Hwayeong.

Comparison of Growth, Yield and Quality between Organic Cultivation and Conventional Cultivation in Rice (Oryza sativa L.) Field (벼 유기재배와 관행재배의 생육 및 수량과 품질 비교)

  • Cha, Kwang-Hong;Oh, Hwan-Jung;Park, Ro-Dong;Park, Heung-Gyu;An, Kyu-Nam;Jung, Woo-Jin
    • Korean Journal of Organic Agriculture
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    • v.18 no.2
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    • pp.199-208
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    • 2010
  • To investigate a comparison of rice yield and quality between organic and conventional cultivation, study for occurrence of rice diseases carried out in rice (Oryza sativa L.) field of Noahn and Bannam region. The results obtained as following: 1) Bactericide and insecticide were applied twice and four times at Noahn and Bannam region in conventional cultivation (C.C) of rice field, respectively, it was applied twice at two region in organic cultivation (O.C). Rice strip virus, leaf blast, neck blast, sheath blight, bacterial leaf blight, rice water weevil, rice leaf folder, and plant hoppers were occurred mainly in rice field. Leaf blast, neck blast, and rice leaf folder were occurred highly at O.C compared with C.C. 2) Growth level of rice in clum and panicle length was lower at O.C than C.C. Number of panicles per hill was by 0.6 higher at O.C than C.C. Number of panicles per hill was by 0.6 higher at O.C than C.C in Noahn region. Number of spikelets per panicle, grain filling ratio, brown/rough rice ratio, and weight of 1,000 grains was lower at O.C than C.C. Number of panicles per hill was by 0.8 lower at O.C than C.C in Bannam region. Number of spikelets per panicle and grain filling ratio was higher at O.C than C.C while brown/rough rice ratio was lower at O.C. Total yield percentage of rice in O.C was level of 84% at Noahn region and 94% at Bannam region compared with C.C. 3) Head rice percentage was lower at in O.C than C.C at two region. Protein and palatability (Toyo value) were lower at O.C than C.C in Bannam region causing occurrence of neck blast and rice leaf folder by oversupply of nitrogen fertilizer. Protein, whiteness, and palatability (Toyo value) were adequate level at O.C in Noahn region by lower nitrogen fertilizer.

A Design Direction for Residential Space under Ubiquitous Environment (유비쿼터스 환경에서의 주거 건축설계 방향설정 연구)

  • Yoon Ki-Byung
    • Journal of the Korean housing association
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    • v.17 no.4
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    • pp.145-153
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    • 2006
  • Ubiquitous space can be described as a combined space of physical space and digital space. Ubiquitous space possesses new possibilities by combining the two. The concept of ubiquitous home will bring new changes in residential space design. First of all, it makes possible for more convenient and secure home. It has to be developed along with city and town level changes as ubiquitous environment. Secondly, concept of extended space as an extension of living space becomes possible by linking with outside spaces. Thirdly, as consumer requirements for residential spaces will become more versatile by social changes, ubiquitous home can be a good means to meet these versatile consumer requirements by accommodating concept of multi-functional space and flexible space. It is quite important to predict user requirements in rapidly changing social environment and versatile personal inclinations. Instead of POE methodology which can analyze and evaluate in exiting types of designs, storytelling methodology can be used to predict and direct for future requirements of living. The methodology makes scenarios of space usage for future living and extracts design requirements for the living. The concept of intelligent space has to be introduced. It is different from digital home that only accomodate digital devices in space. In intelligent space, space itself has to be recognized as an identity that interacts human directly. Intelligent space recognize human requirements and control digital devices as a response. Multi-functional space is closely related with intelligent space that can changes for business, entertainments as well as for rests by user requirements instantly. Flexible space that also intends to meet requirements of mobility and versatility can be attained through the integration of digital technology into current physical mobile systems. Interaction design becomes integral part for ubiquitous space design along with physical design. For the residential space design, digital illiteracy has to be considered for interaction design. Instead of the concept of passive existence, space itself has to be recognized as active subsistence that reacts with human. Intuitive and natural interaction for human will be a key design element for space-human interface design.