• Title/Summary/Keyword: Formation Factors

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Process of Formwork Crew Team Formation Based on Work Zoning in Apartment Housing Projects (공구분할기반 공동주택 거푸집공사 작업조 구성 프로세스)

  • Koo, Kyo-Jin;Cho, Dong-Hyun;Lee, Jun-Ho;Park, Sang-Hun;Park, Chan-Soo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.11a
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    • pp.285-286
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    • 2012
  • In the large scale projects, it is difficult to manage every blocks because of the apartment housing project have repetitive shapes and structures. Therefore, it is necessary to divide construction site into work zones and blocks considering site plan, the number of units per each floor, arrangement of blocks, etc. In this study, 20 influencing factors on the grouping of work zones and formwork crew team formation are identified through case study and literature review. Factors are analyzed to determine the degree of influence through experts interviews. A systematic process of crew formation based on work zoning and the considerations by each steps are presented.

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Analyzing the Effect of Si Surface Morphology on Front Electrode Formation (전면 전극 형성 시 표면 형상이 미치는 영향 분석)

  • Han, Hyebin;Choi, Dongjin;Kang, Dongkyun;Park, HyunJung;Bae, Suhyun;Kang, Yoonmook;Lee, Hae-Seok
    • Current Photovoltaic Research
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    • v.7 no.4
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    • pp.130-133
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    • 2019
  • The Ag crystallite formed during the formation of the front electrode forms a contact between the metal of the electrode and the emitter of the cell. Contact between the electrode and emitter plays an important role in collecting electrons generated by the solar cell. Therefore, Ag crystallite formation is an important factor. In order for solar cells to have good characteristics, it is important to understand the factors influencing the Ag crystallite formation. Factors affecting the formation of Ag crystallites include Si emitter, morphology, Si defect and firing temperature. The influence of surface morphology on Ag crystallite formation was confirmed throughout this study. In the case of fine texturing, the Ag crystallites were formed at the pointed parts. The finer the texturing, the sharper areas and more Ag crystallites were formed. This was confirmed by SEM image and FF calculation.

Effect of Some Factors Affecting Callus Formation of Red Clover (레드 클로버의 캘러스 유도에 미치는 몇가지 요인의 영향)

  • Dae Young Son;Jin Ki Jo
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.15 no.2
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    • pp.101-105
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    • 1995
  • This experiment was conducted to determine factors affecting callus formation of some varieties of red clover. Growth regulators. basal medium, medium pH, agar concentration, and plant age for explant were investigated. The result obtained were as follows. As auxin source, 0.1 mg/ l picloram was found to be effective on callus formation. Callus formation was the highest on PC medium among several growth media. The callus produced on PC medium was more friable than those produced on the other media. The medium pH 5.8 gave the best response for callus formation. The effective seedling age for callus formatiom was around 5-7 days old. In agar concentration, 0.5-0.8%(WN) was suitable for callus formation.

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The Effect of Gasoline Engine Oil Degradation and Piston Temperature on Carbon Deposit Formation; Part I-Characteristics of deposit formation on gasoline engine (엔진 오일 열화와 피스톤 온도가 카본 디포짓 형성에 미치는 영향 Part I-가솔린 엔진의 디포짓 형성 특성)

  • 김중수;민병순;이두순;오대윤;최재권
    • Tribology and Lubricants
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    • v.13 no.4
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    • pp.33-39
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    • 1997
  • In order to establish a new temperature criterion to prevent the pistons from ring sticking due to deposit formation, bench test and engine test were performed. The effects of oil degradation and temperature on deposit formation was studied by a modified panel coking test. Oil degradation was analyzed by FTIR. Oil oxidation and nitration were selected as a factors to evaluate oil degradation. Bench test results show that oil oxidation is more effective to the deposit formation than oil nitration. And the temperature increase accelerates deposit formation and deposit formation increase rapidly above 26$0^{\circ}C$. Especially, in case of degraded oil, the deposit formation increases so rapidly that ring sticking can occur. The effect of piston temperature on the deposit formation was confirmed by engine test.

Forkhead Genes are Key Regulators of Developmental Processes in Aspergillus nidulans

  • Oh, Dong-Soon;Kim, Jong-Hwa;Han, Dong-Min;Han, Kap-Hoon
    • 한국균학회소식:학술대회논문집
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    • 2014.05a
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    • pp.39-39
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    • 2014
  • In a homothallic filamentous fungus Aspergillus nidulans, sexual and asexual developments are largely affected by the genetic and environmental factors. To regulate the complex subsets of genes involved in the developmental processes accurately, tight regulations of transcription factors are required. The forkhead type transcription factors are the class of regulators that function in a broad spectrum of cellular and developmental processes in many species from yeast to human. Here, we identified the fkhA and fkhB genes that encode a conserved forkhead transcription factors. The fkhA deletion resulted in the complete loss of fruiting body formation under all conditions favoring sexual development, suggesting that the fkhA gene is required for sexual development in A. nidulans. Overexpression of fkhA resulted in enhanced formation of fruiting bodies under induction condition not only in the normal condition but also in the condition of presence of 0.6 M KCl, which strongly inhibits sexual development. To know the function of the fkhB gene, we also generated fkhB knock-out strain in A. nidulans. Deletion of fkhB resulted in abnormal conidiophore formation under standard conditions and delayed sexual development process, suggesting that the fkhB gene plays an important role in conidiophore morphogenesis Taken together, these results suggest that the fkhA gene is necessary and sufficient for regulating sexual development and the fkhB gene is a transcription factor related in asexual developmental process in A. nidulans.

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A Study on the Cultural City Formation Factors Influencing Behavior Characteristic of Residents and Tourists (문화도시 형성 요인이 거주와 방문자의 행동 특성에 미치는 영향)

  • Hayul Kwak;Myeonggil Choi
    • Journal of Information Technology Applications and Management
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    • v.30 no.4
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    • pp.39-64
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    • 2023
  • The recent expansion of large cities for economic benefits has worsened cultural inequalities within urban areas, eroding unique cultural identities and social values and deepening mistrust between regions. To tackle this, the idea of creating cultural cities is gaining traction, involving urban branding and cultural elements to foster balanced local cultural development. Current research primarily concentrates on case analysis in cultural cities, lacking sufficient studies examining the interplay of factors through empirical analysis, This study investigated whether Cultural City Formation Factors, which are resources of a cultural city, have a positive effect on City Brand Equity, City Innovativeness, Brand Personality, and Behavior Intention. For this study, questionnaires were collected from 310 people who continuously experience culture and arts in Seoul, and empirical analysis was conducted on 292 copies of them. Consequently, a significant impact was observed among the factors influencing cultural city formation, city brand equity, city innovativeness, brand personality, and behavioral intention. Moreover, it was verified that city brand equity, city innovativeness, and brand personality positively contributed to mediating effects as well as sequential mediating effects. It is expected that the results of this study will be used to establish the foundation for effective urban management and the development of strategies for creating cultural cities.

The Influencing Factors on the Online-Based Interpersonal Relationships Formation of the SNS Users (SNS 사용자의 온라인기반관계 형성에 미치는 영향 요인)

  • Heo, Song-Ji;Kim, Ja-Young;Jang, Hee-Jin;Park, Su-E;Ko, Hye-Young
    • Journal of Korea Game Society
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    • v.12 no.2
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    • pp.101-113
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    • 2012
  • In this paper, our goal is to investigate the influencing factors on the online-based interpersonal relationships formation of the SNS users. To achieve this, first, we collected the influencing factors on the online-based interpersonal relationships, conducted survey, and then we analyzed the data with the PLS(Partial Least Square) and structural equation. As a result, we verified the main cause of factors as personal, relational and environmental factors and 8 kinds of detailed factor as social attraction, physical attraction, informational post, reciprocality, similarity, contents quality, web appearance and perceived spatiality are the influencing factors on the online-based interpersonal relationships dimensions. Finally, these factors were proposed as the influencing factors on the online-based interpersonal relationships formation of the SNS users.

Development and importance analysis of evaluation factors for formation of future-oriented rural residential environment: using network analysis and AHP analysis (농촌다운 주거환경 조성을 위한 평가항목 개발 및 중요도 분석 - 네트워크 분석과 AHP 분석 활용 -)

  • Lee, Cha Hee;Lim, Jung Eon;Lee, Sang Moon;Yun, Sang Hun
    • Journal of Korean Society of Rural Planning
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    • v.25 no.2
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    • pp.89-98
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    • 2019
  • The purpose of this study is to develop the evaluation factors for formation of the future - oriented rural residential environment and to derive the importance of this evaluation factors. The main research methods are network analysis using Net-miner, AHP analysis and importance analysis for experts. The main research results are as follows. First, 6 factors for evaluation rural residential environment(environmental-sustainability, communality, self-reliance, aesthetic, enjoyment, settlement), 3 sub-factors of each factors, and key physical facilities(10 for rural center and 28 for rural villages) were derived by literature analysis and network analysis on it. Second, key priority factors that should be considered in physical formation of rural residential environment was deducted by AHP analysis. Improving accessibility of living services in the settlement factor, improvement of garbage collection and wastewater treatment system around the residential area, and ensuring topographic continuity in the environmental-sustainability factor was derived as a priority factors. Third, as a result of evaluation of the importance of physical facilities in the rural residential environment, there was a high demand for cultural welfare facilities in common. However, when compared with the villages where the harmony between the natural environment and the living environment is emphasized, convenience of living and accessibility of transportation were important in the rural center. These results suggest that solving the qualitative conditions as residential environment will help to attract new population. This study will contribute to enhance the qualitative level of the rural residential environment by suggesting strategic priority items when carrying out projects related to the rural residential environment creation in the future.

An Algorithm for Grouping the Machines & Parts in FMS (유연생산 시스템에서의 셀 및 부품군 형성 알고리즘)

  • Moon, Chi-Ung;Lee, Sang-Yong
    • Journal of Korean Institute of Industrial Engineers
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    • v.18 no.2
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    • pp.123-130
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    • 1992
  • The group formation problem of the machine and part in Flexible Manufacturing System (FMS) is a very important issue in planning stage of FMS. This paper discusses the problem of machine-part group formation. The purpose of the study is to develop a heuristic algorithm, which can handle more realistic machine-part group formation problem by considering manufacturing factors. A new similarity coeffecient has been developed to solve more realistic machine-part group formation problem. For the purpose of illustations, a numerical example is presented.

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Physiographical, Geological, and Hydraulic Classification of Ground Water Occurrence in the Unconsolidated Formation, with Respect to the Economical Evaluation, in South Korea (우리나라 지하수(地下水) 부존상태(賦存狀態)의 지형학적(地形學的), 지리학적(地理學的) 유형분류(類型分類))

  • Jeong, Bong Il
    • Economic and Environmental Geology
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    • v.4 no.1
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    • pp.33-37
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    • 1971
  • Economical evaluation of an aquifer in an unconsolidated formation is based on the physiography, geology and hydraulics in it's loci. Since each foundation is controlled by the combination of several factors, these factors in each foundation will be explained in regard to their function, contributing to the yield of ground water from aquifers.

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