• Title/Summary/Keyword: Environmental orientation

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Influence of grain interaction on lattice strain evolution in two-phase polycrystals

  • Han, Tong-Seok
    • Interaction and multiscale mechanics
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    • v.4 no.2
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    • pp.155-164
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    • 2011
  • The lattice strain evolution within polycrystalline solids is influenced by the crystal orientation and grain interaction. For multi-phase polycrystals, due to potential large differences in properties of each phase, lattice strains are even more strongly influenced by grain interaction compared with single phase polycrystals. In this research, the effects of the grain interaction and crystal orientation on the lattice strain evolution in a two-phase polycrystals are investigated. Duplex steel of austenite and ferrite phases with equal volume fraction is selected for the analysis, of which grain arrangement sensitivity is confirmed in the literature through both experiment and simulation (Hedstr$\ddot{o}$m et al. 2010). Analysis on the grain interaction is performed using the results obtained from the finite element calculation based on the model of restricted slip within crystallographic planes. The dependence of lattice strain on grain interactions as well as crystal orientation is confirmed and motivated the need for more in-depth analysis.

A Study on the Propagation of Errors for the Analysis of Orientation in Aerial Photography (항공사진(航空寫眞)의 표정해석(標定解析)의 오차전파(誤差傳播)에 관(關)한 연구(硏究))

  • Yeu, Bock Mo;Lee, Kye Hak
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.2 no.1
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    • pp.81-92
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    • 1982
  • This study aimes at understanding the factors influencing poistion-determination by investigating the propagation of errors developed during orientation work in three-dimmensional coordinates of the aerial photograph. This paper treats the comparison and analysis of phopagation of errors due to computing orientation requited for the analysis of the absolute coordinate from the image coordinates of photograph.

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A Proposal on Waterfront Development Reflecting the Sense of Place of Pusan South Harbor Area (부산남항의 장소적 특성을 고려한 워터프런트 개발방향)

  • 조용수;조은석
    • Journal of Korean Port Research
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    • v.14 no.4
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    • pp.407-418
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    • 2000
  • Although there are a lot of primary factors to be able to make characters and identities in Pusan South Harbor, Badly Planned development prevented enhancing the sense of place in urban waterfront. The point in the waterfront development is how to secure amenities based on indentity and orientation; node, landmark, edge, path, district. This study aims at developing waterfront area of Pusan South Harbor and attempting to establish an identity through studying characteristics of ‘places’ in Pusan South Harbor. The place consists of two elements; orientation and identity, which can be explained the environmental totality, ‘character’ and ‘space’ respectively. The urban waterfront has strong characteristics which consists of land area, water area, and transit zone combining two areas. The place of Pusan South Harbor is analysed those four elements. We proposed objectives and criteria which can be used in enhancing the sense of this place.

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Trends of Daylight Environment for Office Spaces Based on Smart-Window Installation Settings (스마트 윈도우 설치 속성에 따른 사무공간의 주광 환경 추이)

  • Jae-Hyang Kim;Seung-Hoon Han
    • New & Renewable Energy
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    • v.19 no.3
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    • pp.13-21
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    • 2023
  • Smart windows are capable of varying their visible light transmittance (VLT) in response to changing environmental conditions. The VLT variability of architectural windows is highly valuable because it enables indoor lighting and energy environments to align with external changes. However, challenges such as high installation costs and assurance of glass visibility have prompted the exploration of alternative solutions, including models incorporating partially applied smart windows., Prior research focused on useful daylight illuminance (UDI) analysis for south-facing office buildings, pointing out suitable areas for smart-window implementation to enhance lighting control. In this study, we broadened this scope by determining optimal smart-window application zones under changing building orientation. Furthermore, we studied the correlation between building orientation and smart-window deployment areas.

A study on fashion mask design trends for individual safety protection from harmful environments (유해환경으로부터 개인의 안전보호를 위한 패션 마스크 디자인 경향)

  • Dal A Lee;Chan Ho Kim
    • Journal of the Korea Fashion and Costume Design Association
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    • v.24 no.4
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    • pp.101-116
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    • 2022
  • The purpose of this study is to understand the trends of fashion mask designs as a fashion item with characteristics to protect individual health and safety from harmful environments. To this end, the concept, the trend analysis of the domestic and foreign mask markets, the type, characteristics of functional masks, and the design trend of fashion masks were analyzed. Research methods included case studies and literaturte on mask design, fashion magazines, fashion brand websites, fashion collections, and promotional material. First, masks for personal safety were classified as protective function masks from the natural environment, functional masks by industrial groups, masks for protective functions from biohazards, and masks for protective functions from various external activities. Through this analysis, the design trends of fashion masks were analyzed. The functional orientation of structure and functionality, the environmental orientation of sustainable eco-friendly methods, the fashion orientation of individual fashion styling, and the social functional orientation tend to transmit social messages. In the harmful environment of everyday life, items such as fashion masks with functionality and fashion characteristics should be continuously studied to integrate functional and design characteristics that can contribute to the future fashion industry and the fashion market as a sense of unity and responsibility.

The Effects of Environmental Adaptation Patterns in the Railway Public Enterprises on Marketing Capabilities and Organizational Performance: Focused on the Market Orientation of Korail and Subway Firms (철도공기업의 환경적응패턴이 마케팅역량과 조직성과에 미치는 영향: 코레일과 지하철 조직의 시장지향성을 중심으로)

  • Shin, Tack-Hyun;Kim, Sung-Ho
    • Journal of the Korean Society for Railway
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    • v.15 no.1
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    • pp.71-79
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    • 2012
  • The main purpose of this study is to depict the causal relationship among Market Orientation(MO), Marketing Capabilities(MC), and Organizational Performance(OP) with the moderating effect of Environmental Turbulence(ET), especially comparatively highlighting the differences between Korail and Subway firms. Findings show that there partly existed significant interactions effects between ET and MO in case of subway firms, whereas Korail did not reveal any significant results. When considering the strong relationship between MO and MC shown in the subway firms' case, it can be inferred that subway firms continuously have attempted to adapt to the external environment facing them more flexibly and actively over their counterpart, by which the degree of their MC became positively enhanced over Korail. These results give us some implication that MO should be internalized and also MC should get a higher consideration than ever throughout the railway public enterprises in order to strengthen their performance.

Dietitians' Customer Orientation at Contract Foodservice Management Company (위탁급식전문업체 영양사의 고객지향성 분석)

  • Shin, Seo-Young;Kim, Hee-Yeon;Choi, Mi-Kyung;Yang, Il-Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.35 no.6
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    • pp.801-808
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    • 2006
  • The purposes of this study were to measure customer orientation of dietitians engaged in contract foodservice management companies, and to examine the impacts of personal characteristics and organizational characteristics on the customer orientation of dietitians. The questionnaires developed for this study were distributed to 230 dietitians of contract foodservice management companies, including 4 major companies, in Seoul and Gyeonggi areas. A total of 187 (81.3%) questionnaires were used for analysis, and statistical analyses were conducted using SPSS (Win 11.5) for descriptive analysis, correlation analysis, t-test and ANOVA. The average customer orientation score of the dietitians was 3.77 (SD=0.40) and it seemed that most respondents evaluated themselves as customer-oriented. Further analyses revealed significant differences in customer orientation among different position (p<0.05) and payroll (p<0.01) groups.'Type of menu' also affected the customer orientation (p<0.01). Overall, it is needed to design efficient training programs that improve service skills and customer orientation of dietitians, and the understandings on variables affecting customer orientation would help it.

Preparation and Characterization of a Layered Organic-inorganic Composite by the Electrophoretic Deposition of Plate-shaped Al2O3 Particles and Electrophoretic Resin (전기영동적층법을 통한 판상 알루미나 입자와 전기영동 수지의 배향 유무기 복합체 제조 및 물성평가)

  • Park, Hee Jeong;Lim, Hyung Mi;Choi, Sung-Churl;Kim, Younghee
    • Journal of the Korean Ceramic Society
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    • v.50 no.6
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    • pp.460-465
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    • 2013
  • Plate-shaped inorganic particles are coated onto a stainless steel substrate by the electrophoretic deposition of a precursor slurry which includes the inorganic particles of $Al_2O_3$ and polymer resin in mixed solvents to mimic the abalone shell structure, which is a composite of plate-shaped inorganic particles and organic interlayer binding materials with a layered orientation. The process parameters of the electrophoretic deposition include the voltage, coating time, and conductivity of the substrate. In addition, the suspension parameters are the particle size, concentration, viscosity, conductivity, and stability. We prepared an organic-inorganic composite coating with a high inorganic solid content by arraying the plate-shaped $Al_2O_3$ particles and electrophoretic resin via an electrophoretic deposition method. We analyzed the effect of the slurry composition and the electrophoretic deposition process parameters on the physical, mechanical and thermal properties of the coating layer, i.e., the thickness, density, particle orientation, Young's modulus and thermogravimetric analysis results.

A Study on the Elements of the Environmentally Friendly Design of the Courtyards in Elementary Schools -Focused on the Open Direction and D/H Ratio- (초등학교 중정공간에서의 친환경요소도입에 관한 연구 -중정의 열린 방위와 D/H비를 중심으로-)

  • Kim, Chan-Ju;Kim, Hak-Rae;Park, Young-Ki
    • KIEAE Journal
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    • v.2 no.3
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    • pp.3-10
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    • 2002
  • The objectives of this research are to find the problems in the courtyards of the elementary schools and to provide the new design guidelines on the environmental design applicable to the court yard of the elementary schools. To analyze the current usage condition of the court yards of the elementary schools, sixty-three elementary schools in Seoul were investigated through the architectural drawings, and then nineteen of them were selected for the detailed investigations. The survey findings testified that the orientation of the courtyard's open direction and D/H ratio would be critically important for the architectural design of the courtyard in elementary schools. From these analyses, the following guidelines would be proposed on the courtyards for the improved elementary school design. Firstly, to increase the environmental condition of the courtyard, the orientation of the courtyard's open side would not be north. Secondly, to make the environmentally friendly courtyard, it is necessary to increase the D/H ratio. Sooner or later, the courtyard of the elementary schools would be introduced very largely. Thus, it is important to figure out the elements of the environmental design of the courtyard in elementary schools. The continuous research on the elements of the environmentally friendly design of the courtyard will provide the proper direction for the better design of the elementary schools.

Application of Ground Penetrating Radar for Archaeological Monuments (지하레이다를 이용한 고고학 탐사)

  • Shon, Howoong
    • Economic and Environmental Geology
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    • v.29 no.6
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    • pp.745-752
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    • 1996
  • A ground penetrating radar survey with a 500 MHz radar antenna was applied to make archaeological investigation in Nakajima of Ishikawa Prefecture, Japan. The ability of the radar system to aid in the archaeological preservation of burial ground was the primary concern of the experiments. The average variance of the radar wave returned from progressively deeper reflectors in a tomb were contoured at 2.4 nanoseconds intervals. The results of analysis indicates the location of trenches and the coffin area at the tomb site. The orientation of the coffin is dearly defined on contour maps made below 9.6 nanoseconds horizon. The general features detected by the GPR were also reconfirmed by electric resistivity survey made at the site. The radar was accurate in ascertaining the location, orientation, and the general construction style of the coffin.

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