• Title/Summary/Keyword: Settlement Factors

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The Study on the Behavior of Closed-Faced Shield Tunneling by Two Dimensional Elasto-Plastic Analysis (2차원 탄소성해석에 의한 밀폐형 실드터널의 거동에 관한 연구)

  • 진치섭;이홍주;한상중
    • Computational Structural Engineering
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    • v.9 no.4
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    • pp.199-207
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    • 1996
  • In the past decade soft clay shield tunneling technology have been improved to permit continuous support to the face of a tunnel. These advanced shield can be operated such that an initial heaving is created, this helps to decrease the inward soil movement into the tail void. In this paper, the measurement of slurry shield and EPB shield were used and two dimensional elasto-plastic programs EPSHILD developed for shield tunnel analysis were approved. The excavation steps corresponding with construction stages were settled and heaving load, load factors were considered. This study is based on the instantaneous settlement which is occured in the process of shield construction but not the secondary settlement by consolidation.

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Organizational Effectiveness of Hospital Workers (병원종사자들의 조직유효성)

  • Lim, Jung-Do
    • The Korean Journal of Health Service Management
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    • v.5 no.2
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    • pp.63-76
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    • 2011
  • It is necessary to access managing human resources of hospitals with diversity in order to operate hospital organization successfully and efficiently. The research tries to analyze affecting factors of organizational effectiveness of hospital workers according to their positions. The research has been performed on the 836 hospital workers of 8 different positions in the Busan & Gyeong-nam area, utilizing SPSS version 19.0 for processing and analyzing the data. The major results of the research are as following. First, among such factors of organizational effectiveness as sense of belonging to work, pride, work settlement, wage satisfaction, job satisfaction, colleague perception, and unstable consciousness of their job, there is a meaningful difference according to the kinds of working institution and positions. Second, there was higher organizational effectiveness(a sense of belonging and pride) as to higher work settlement and wage satisfaction within all kinds of positions. In addition, there was higher organizational effectiveness(a sense of belonging and pride) as to higher job satisfaction and colleague perception within all kinds of positions except for physical therapist, general adminstration, facilities, nutrition, and etc. There was higher organizational effectiveness(a sense of belonging and pride) within all kinds of positions except for general adminstration, facilities, nutrition, and etc, as to lower job or work complaint.

A Study on the Settlement Environment and Life Satisfaction of Sub-Urban Residential Complex - Focused on the comparative analysis of Sub-Urban Residential Complex created by the government and the nongovernment - (농촌지역 전원주거단지 정주 실태 및 입주자 만족도 분석 - 전원마을조성사업지구와 일반전원주거단지의 비교.분석을 중심으로 -)

  • Cho, Young-Jae;Cho, Eun-Jung
    • Journal of Korean Society of Rural Planning
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    • v.18 no.2
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    • pp.13-26
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    • 2012
  • This study aims to present the policy issues and direction of sub-urban residential complex by analyzing the settlement environment and life satisfaction. For the purpose, 10 sub-urban residential complexes in Chungnam Province were surveyed for general situation, physical environment, social environment, economic environment. The results are as follows; 1) The satisfaction in the physical environment is more higher in case of the complex created by the public organization. 2) The physical environment is an important factor in the determinant of the settlement, while the economic environment have a relatively lower impact. 3) The residents community is the more active, the satisfaction in the social environment is the more improved. 4) The source of income or the activity of consumption doesn't have an effect on the satisfaction in the economic environment. On the basis of this study, three programs for improvement of sub-urban residential complex policy were suggested. First, the various information and counseling service should be provided to attract city dwellers. Second, the policy on the development of sub-urban residential complex has to consider residential preference factors and improve the quality of life. Third, to increase the life satisfaction, the residents community should be activated and especially the activation of community with residents in other village is very important.

A Study of Domestic B2B e-Marketplace (국내 B2B e-Marketplace에 관한 연구)

  • 이헌성;강민철
    • Journal of Korea Society of Industrial Information Systems
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    • v.6 no.2
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    • pp.23-30
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    • 2001
  • The advent of the Internet and development of information technologies have changed the environment of doing business. Accordingly, they expect that the relative importance of electronic commerce in the business becomes growing more and more. Among the areas of electronic commerce, B2B marketplaces that play the roles of linking buyers and suppliers take the important place. This study examines requirements for activating domestic B2B marketplaces by analyzing the literature and the status of the marketplaces. For the analysis, evaluation factors that belong to one of the four categories (i.e., Information step, Agreement step, Settlement step, and the rest) are selected. Results of the study suggest the following activation requirements for domestic B2B marketplaces : 1. Enforcement of services for the Agreement and Settlement steps. 2. Supporting multinational languages. 3. Diversification of income sources. 4. Standardization. 5. Integrating main systems. 6. Satisfying the necessities of buyers and suppliers.

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A Study on International Mercantile Custom in Russia (러시아의 국제상관습에 관한 연구)

  • Lee, Suk-Yun
    • International Commerce and Information Review
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    • v.1 no.2
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    • pp.295-323
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    • 1999
  • A main purpose of this study is to examine the international mercantile custom of Russia. After the collapse of the Soviet Union, the new Russia have to make a relation external world for economic development. The geostrategic importance and natural resources in Russia attracted constant interest of western countries. There are many difficulties in this country and hundreds of Korean and western companies already operate in Russia and their activities are more and more of a long-tenn character. So, the settlements of trade and understanding between Korea and Russia are very important. It includes effective methods of trade settlement, factors of successful negotiation, differences of trade customs and business environment.

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Fundamental Properties of Lightweight Foamed Concrete Depending on Admixture Incorporation (혼화재 치환에 따른 경량기포콘크리트의 기초적 특성)

  • Shin, Jae-Kyung;Yoo, Seung-Yeup;Jeong, Kwang-Bok;Hong, Sang-Hee;Kim, Seong-Soo;Han, Cheon-Goo
    • Proceedings of the Korea Concrete Institute Conference
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    • 2006.05b
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    • pp.521-524
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    • 2006
  • In this paper, admixture factors affecting the properties of lightweight foamed concrete incorporating cement kiln dust(CKD) and fly ash(FA), respectively are discussed. Increase in CKD contents resulted in loss of fluidity and decrease in settlement of concrete noticeably. Moreover, the higher the unit weight is, the smaller the settlement depth is. The use of CKD resulted in slight decrease in compressive strength and tensile strength compared to that with other admixture. However, all mixtures met the requirement of strength prescribed in Korean Industrial Standards.

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Assessement of Consolidation Characteristics by Field Instrumentation (현장계측사례를 통한 압밀특성 평가)

  • Song, Jeong-Rak;Baek, Seung-Hun;O, Da-Yeong
    • Proceedings of the Korean Geotechical Society Conference
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    • 1992.10a
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    • pp.121-130
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    • 1992
  • Assessement of comsolidation characteristics of soft soil is very important in the project of soft soil improvement. In the design step, the consolidation characteristics of soil is determined by the laboratory tests (typically oedometer test), generally. But there is big differences between the condition of laboratory test and the condition of field(in situ). the differences results in the considerable difference between the predicted and measured consolidation behavior. This article analyzed the consolidation data of the "SOFT SOIL IMPROVEMENT PROJECT of the 2nd Namdong Industrial Complex at Inchon". The project was improving the road way net work in the 2nd Namdong Industrial Complex by preloading and sand pile method. Field instrumentation was performed at 10 points which consist of pneumatic piezometers, magnetic probe extensometers, inclinometers and electronic dipmeter. The results showed that there is big difference in the laboratory predicted consolidation behavior and field consolidadion behavior. Also there was big difference in the settlement behavior and pore pressure behavior. This article investigated the above factors by comparing the settlement, pore pressure and strength at different conditions.onditions.

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A Study for the Elevation of Settlement in Residential District(I) (거주지역의 정주성 향상을 위한 연구 (I) - 미래 주거생활주기에 따른 대구지역 대학생의 지역선호와 가치를 중심으로 -)

  • 임소연;김재경;안옥희
    • Journal of the Korean housing association
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    • v.10 no.4
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    • pp.1-10
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    • 1999
  • The purpose of this study was to investigate the environmental factors having a influence on the preference of residential district and to furnish basic information for the successful settlement. For the purpose, residential preference and values on the residential district were estimated according to the housing life cycle. Data were collected through questionnaires designed for this study, and the objects of this research were university students. To analyze the data were used spsswin program. The major results were as follows. 1. According to the housing life cycle, there were significant differences in the preference of the residential district, living area and housing type in the future. Metropolitan and seoul, residential area and commercial area, apartment, office-hotel and row house were preferred in the housing formative. In the stable period, seoul and metropolitan, tower apartment, residential area were preferred. But in the housing reductive period, they preferred a green zone in the rural, the detached house. 2. The degree of consideration of living convenience facilities was high in the housing formative period. Both education-leisure, business facilities and marketing facilities were highly valuated in the housing stable period. But the value of welfare facilities was high in the housing reductive period. 3. The 4 dimensions of values in environmental conditions were extracted through factor analysis. They were natural, human, social, and economic factors. According to the housing life cycle, there were significant differences in factors being considered as the environmental conditions. The values of human and economic factors were high in the housing formative and stable period. Natural factor were highly considered in the housing reductive period.

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Factors Affecting the Preparation of Advance Directives of Older People (노인의 사전연명의료의향서 작성에 영향을 미치는 요인)

  • Ji-Kyeong Park
    • Journal of The Korean Society of Integrative Medicine
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    • v.11 no.2
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    • pp.87-99
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    • 2023
  • Purpose : This study intended to provide essential data for developing measures for the stable settlement and expansion of the life-sustaining treatment decision system by identifying the effects on preparing advanced directives. Methods : The effects on preparing advance directives of older people were identified based on Andersen's behavioral model, using the 2020 Korean national survey on elderly. Data were statistically analyzed with SPSS Statistics ver 25.0 and the significance level (α) was set to .05. Results : For factors that influence the preparation of advance directives, the predisposing factor was .769 times less for women than men (p=.026). By age, it was 1.410 times higher (p=.006) for people in their 70s compared to people in their 60s and 1.675 times higher (p=.003) for those in their 80s. By the level of education, it was 1.617 times higher (p=.026) for those who have elementary school education compared to those who have no education, 1.596 times higher (p=.048) for those who have a middle school education, 2.313 times higher (p<.001) for those who have a high school education, and 3.827 times higher (p<.001) for those who have a college education. By religion, it was 1.328 times higher (p=.008) for those who have faith compared to those who do not. For possible factors, it was 2.325 times higher (p=.003) for those who spend 100,000 won or more on healthcare (monthly average) compared to those who do not spend. For necessary factors, it was 1.439 times higher (p=.041) for those with the chronic disease compared to those without. Conclusion : It is deemed a measure that can increase the preparation of advance directives, considering the characteristics of each cause, for the stable settlement of the life-sustaining treatment decision system.

A study on the risk and settlement evaluation of a shield TBM excavated in soft marine sedimentary soils (해저 연약 퇴적층 지반 쉴드 TBM 위험요인 평가 및 장비 침하에 관한 연구)

  • You, Kwang-Ho;Park, Chi-Myeon
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.18 no.4
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    • pp.355-364
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    • 2016
  • Recently, a 3,250 meter-long tunnel was constructed beneath the sea bed formed of composite sedimentary soils to transport reusable waste heat gas of industrial complex in the west coast of Korea. Some risks such as machine settlement always exist due to the uncertainties of geological and construction factors during the subsea shield TBM tunnelling. In this construction site, the deviation of tunnel alignment caused by shield TBM settlement was occurred during excavation. It was examined that the lack of bearing capacity of soft clay was a main cause. This paper evaluates the risk of shield TBM tunnelling considering the ground conditions. Correlation between machine settlement and its advance rate was evaluated through the analytical equation in which bearing capacity is considered and a 3-D numerical analysis which can simulate the TBM advance condition (in other words, the dynamic condition). It was found out that a shield TBM could settle due to the insufficient bearing capacity of soft clay layers. In order to prevent such the problem, the best advance rate proper to the ground characteristics is needed to be applied. In the ground conditions of the section of interest, it was turned out that if the shield TBM advance rate was maintained between 35 mm/min and 40 mm/min, the machine settlement could be avoided.