• 제목/요약/키워드: The future settlement

검색결과 249건 처리시간 0.026초

무역결제 분야 연구의 메타분석과 전망 (Meta Analysis on the Trade Settlement Study and Research Outlook)

  • 여희정
    • 무역학회지
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    • 제46권2호
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    • pp.371-387
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    • 2021
  • This paper analyzed 110 papers related to the field of trade settlement published in the Korea Trade Review for 40 years from 1980 to 2019. This study tried to provide an insight on research topics and to suggest future research directions. The papers were analyzed according to the detailed topics of trade settlement. Research trends were identified every ten years by investigating the most frequently used titles and keywords. The analysis found that the direction of the research changed in line with the changes in trade settlement practices. Future research lies in the field of electronicization of traditional settlement methods, search for alternative settlement methods, individual international microtransaction and trade fraud.

PBD 공법 시공사례를 통한 교훈 및 개선안 제안 (Lesson and proposal of revised equations from the Pan method application case for soft clay improvement)

  • 유한구;조영묵;김종석;박정규
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2001년도 가을 학술발표회 논문집
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    • pp.147-158
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    • 2001
  • In general, two methods have been used to predict settlement of soft ground. One method is Terzaghi's one dimensional consolidation theory which gives time-settlement relationship using the standard consolidation test results. The other is forecasting method of ground settlement to be occured in the future using in-situ monitoring data. The above both methods have some defects in application manner or in itself especially in very deep and soft clayey ground. In view of the lessons and experiences of soft ground improvement projects, several techniques were proposed for more accurate theorectical calculation of consolidation settlement as follows ; ① Subdivision of soft ground, ② Consideration of secondary compression, ③ Using the modified compression index, etc. And also, revised hyperbolic fitting method was suggested to minimize the error of predicted future settlement. In addition, revised De-Beer equation of immediate settlement of loose sandy soil was proposed to overcome the tendency to show too small settlement calculation results by original De-Deer equation. And also, considering the various effects of settlement delay in the improved ground by vertical drains, time-settlement caculation equation(Onoue method) was revised to match the tendency of settlement delay by using the characteristics of discharge capacity decreases of vertical drain with time elapse by the pattern of hyperbolic equation.

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지역주민의 시각에 의한 정주환경개선과 지역활성화 - 일본 와카야마현 나카츠무라를 중심으로 - (Regional Revitalization and Settlement Improvement from the point of view of the Local Residents - A Case Study on the Nakathu-Mura of Wakayama Prefecture in Japan -)

  • 김영주;최수명;타카하시 쓰쓰시
    • 농촌계획
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    • 제10권3호
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    • pp.19-26
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    • 2004
  • In this study, a new model for improving the settlement environment and revitalizing hilly and mountainous areas was presented. A case study was conducted in two rural villages of Nakatsu-Mura in Wakayama-Prefecture, Japan. The settlement environment was evaluated from the point of view of the local residents, and the expectation of the local residents about the regional revitalization of their village in the future was assessed. From the analysis, each factor used far the assessment displayed characteristics of the two rural villages well. The type of improvement in rural villages was classified by a combination of the degree of satisfaction over the current settlement environment and expectation about the regional revitalization of the villages in the future. A method for improving and revitalizing settlement environments was clarified.

Personal Computer를 이용한 침하 안정 관리기법 (Settlement Data Acquisition and Analysis Technique by Personal Computer)

  • 송정락;여유현
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 1991년도 추계학술발표회 논문집 지반공학에서의 컴퓨터 활용 COMPUTER UTILIZATION IN GEOTECHNICAL ENGINEERING
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    • pp.332-347
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    • 1991
  • 연약 지반의 침하안정관리를 위하여서는 장래의 침하를 정확히 예측하는 것이 매우 중요하다. 이를 위한 기존의 방법으로는 Asaoka 법, 쌍곡선법, Hoshino 법 등의 여러가지 방법들이 사용된다. 이 방법들은 압밀 이론 및 경험에 근거하여 침하 계측자료들을 수학적 방법으로 처리하여 장래의 침하를 예측한다. 그러나 이 방법들에 의해 예측된 침하량과 실제 관측된 침하량의 상관계수(Correlation Coefficient)는 비교적 낮으며(0.8~0.9), 설계 하중에 대한 잔류 침하예측에 있어서도 뚜렸한 방법을 제시하지 못하는 실정이다. 본 고에서는 현장 침하계측을 현장 압밀시험으로 취급하여 그로부터 압밀계수(Cv)와 압축지수(Cc)를 구하였으며 장래 임의의 시점에서의 침하 혹은 압밀도를 구하기 위해서 현장 계측으로 부터 구해진 Cv, Cc 값을 사용하였다. 이 방법에 의하여 예측된 장래 침하량과 실제 침하량 사이의 상관계수는 기존 방법보다 훨씬 높은 값(0.97~0.99)을 보여주었으며, 지반 개량후 설계하중에 대한 잔류 침하도 합리적으로 구할 수 있었다. 상기 방법은 방대한 계산과정을 필요로 하나 오늘날 대중화된 개인용 컴퓨터를 이용하여 신속하고 효과적으로 수행될수 있었다. 본 고는 이 방법의 개요와 실제 현장 계측 자료에 적용된 결과를 제시하였다.

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궤도침하 특성 : State of the Arts (The Characteristic of Track Settlement : State of the Arts)

  • 장선재;임남형;최진유;이우철
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2008년도 춘계학술대회 논문집
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    • pp.1672-1675
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    • 2008
  • The track is an important component of rail structures. The characteristic of the track settlement must be confirmed in order to evaluate the stability of the track. It is effected by action load and the characteristic of the track material. This study investigates the mechanism of the track settlement and the effect of initial settlement and long-term settlement on the characteristic of the track settlement through literature survey. It tries to observe the future research direction of track settlement.

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달 얼음-월면토 결합 형태에 따른 얼음 추출로 발생하는 침하량 평가 (Experimental Evaluation of Ice-regolith Mixture Settlement Caused by Lunar Ice Extraction)

  • 이장근;공정;진현우;유병현
    • 한국지반공학회논문집
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    • 제39권6호
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    • pp.13-19
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    • 2023
  • 달 얼음은 향후 인류의 심우주 탐사와 장기 체류를 위한 자원으로 활용될 수 있다. 달 얼음에 대한 기원 및 존재 유형은 여전히 가설로 남아 있다. 최근 세계 우주국에서는 달 얼음에 대한 원격탐사에서 지상탐사를 통해 정량적 매장량과 존재 유형을 밝히고자 경쟁적으로 미션을 계획하여 추진 중에 있다. 달 얼음의 매장량이 충분하다면 향후 얼음을 자원으로 활용하는 현지자원활용 개념이 각광받을 것으로 예상된다. 그러나 현재까지 얼음 추출에 따른 지반 공학적 관점에서 유의해야 하는 침하에 대한 검토는 전무한 실정이다. 본 연구에서는 인공월면토-얼음 존재 유형별로 얼음 추출로 인해 발생 가능한 침하량에 대한 실험적 연구결과를 제시하고 있다. 그 결과 초기 함수비 약 10%의 인공월면토-얼음 혼합토에서 상당한 침하가 발생하였다.

고속철도 콘크리트궤도 토공노반의 잔류침하 분석 (Analysis of Residual Settlement of Concrete Track Roadbed for High-Speed Railway)

  • 이일화;이성진;권오정;정운기
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2007년도 춘계학술대회 논문집
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    • pp.369-374
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    • 2007
  • An active application of concrete track is being expected for the future construction of Korean railroad. For the successful concrete track construction and design in earthwork areas, the residual settlement should be reasonably estimated using the proper method. The concrete track is extremely vulnerable to the damage of residual settlement. However, at the transition areas such as bridge approach, differential settlement will likely occur due to difference of stiffness, poor drainage and poor ground treatment. The maintenance is very difficult for excessive settlement on existing line, it is need to constrain the residual settlement in step of design. In this paper, it is performed the analysis of the residual settlement measured data, test results and reference to understand the residual settlement behavior of concrete track roadbed

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콘크리트궤도 토공노반의 허용잔류침하량 결정에 관한 연구 (Study of Determination of Allowable Residual Settlement of Concrete Track Roadbed for High-Speed Railway)

  • 이일화;양신추;장승엽
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2007년도 추계학술대회 논문집
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    • pp.1121-1125
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    • 2007
  • An active application of concrete track is being expected for the future construction of Korean railroad. For the successful concrete track construction and design in earthwork areas, the residual settlement should be reasonably estimated using the proper method. The concrete track is extremely vulnerable to the damage of residual settlement. However, at the transition areas such as bridge approach, differential settlement will likely occur due to difference of stiffness, poor drainage and poor ground treatment. The maintenance is very difficult for excessive settlement on existing line, it is need to constrain the residual settlement in step of design. In this paper, it is performed the determination of the allowable residual settlement through various study to understand the residual settlement behavior of concrete track roadbed.

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한국과 중국이 ASEAN과 체결한 FTA 분쟁해결협정 비교 고찰 (A Comparison of Korea and China's FTA Dispute Settlement Agreements with ASEAN)

  • 최송자
    • 한국중재학회지:중재연구
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    • 제23권1호
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    • pp.25-53
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    • 2013
  • With the Korea-China FTA negotiations currently on the line, the importance of research into the FTA dispute settlement system has been increasing. In this paper, a comparison of Korea and China's FTA dispute settlement agreements concluded with ASEAN is contemplated, and implications for the future of the Korea-China FTA have been suggested. The FTA dispute settlement agreements with ASEAN concluded by both Korea and China provide perspectives on both sides. This agreement with ASEAN also provides a standard for the potential Korea-China FTA agreement. Specifically, the basis of these agreements with ASEAN is the same, although there are clear distinctions, described in a more detailed manner. A problem arises when there has been no discussion on dispute settlement agreements in Korea, especially of the agreement with ASEAN, whereas the opposite is true of the China counterpart. In this paper, Chinese academic FTA dispute settlement agreement studies have been also examined.

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농어촌지역 하위정주체계 모형의 대안설정 (An Alternative Model on Hierachial Settlement System in Rural Areas)

  • 최수영
    • 한국농공학회지
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    • 제32권4호
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    • pp.61-70
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    • 1990
  • In rural settlement planning, its spatial development framework should be constructed on the basis of the hierachial settlement system. However, up to now, there does not exist widely - accepted model on rural settlement hierachy. In this study the basic planning principles and directions on the modelling of the settlement hireachy in rural areas have been consolidated through theoretical study and situational analysis on planning environments. And also, a new yardstick on the grading of the middle - level centers between villages and rural towns has been tried to find out. The research resulted that the existance of periodical rural market might be used as a simple and innovative yardstick on the hierachial ordering of rural settlement system. Based on the above results, an alternative 4 - step model of rural settlement hierachy was proposed ; Rural Town(county hall sitted) -Market Center(having standard periodical market) - Village Center(having no market) - Village. Finally, because the conclusion has been made by very limited case studies and several previous works, there should need continuous studies and checks in future for full reasoning of the proposed model.

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