• Title/Summary/Keyword: settlement system

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A mechanical model of vehicle-slab track coupled system with differential subgrade settlement

  • Guo, Yu;Zhai, Wanming;Sun, Yu
    • Structural Engineering and Mechanics
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    • v.66 no.1
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    • pp.15-25
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    • 2018
  • Post-construction subgrade settlement especially differential settlement, has become a key issue in construction and operation of non-ballasted track on high-speed railway soil subgrade, which may also affect the dynamic performance of passing trains. To estimate the effect of differential subgrade settlement on the mechanical behaviors of the vehicle-slab track system, a detailed model considering nonlinear subgrade support and initial track state due to track self-weight is developed. Accordingly, analysis aiming at a typical high-speed vehicle coupled with a deteriorated slab track owing to differential subgrade settlement is carried out, in terms of two aspects: (i) determination of an initial mapping relationship between subgrade settlement and track deflections as well as contact state between track and subgrade based on a semi-analytical method; (ii) simulation of dynamic performance of the coupled system by employing a time integration approach. The investigation indicates that subgrade settlement results in additional track irregularity, and locally, the contact between the concrete track and the soil subgrade is prone to failure. Moreover, wheel-rail interaction is significantly exacerbated by the track degradation and abnormal responses occur as a result of the unsupported areas. Distributions of interlaminar contact forces in track system vary dramatically due to the combined effect of track deterioration and dynamic load. These may not only intensify the dynamic responses of the coupled system, but also have impacts on the long-term behavior of the track components.

The Credit Card Settlement System using the Switching Agent (Switching Agent를 이용한 신용카드 결제 시스템)

  • Ahn Ik-Soo;Hwang Lak-Hoon
    • Journal of the Korea Society of Computer and Information
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    • v.10 no.3 s.35
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    • pp.339-344
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    • 2005
  • Currently the credit card settlement system which is used from off-line credit card joining point is composed of the credit card settlement terminal, the VAN company which do settlement relay service and the credit card company. When the credit card company occurs obstacle, the service VAN company executes as proxy an approval and it controls. When the service VAN company occurs obstacle, the credit card settlement service does not become accomplished in the normality. The dissertation which it sees when the service VAN company occurs obstacle, the possibility of doing a settlement relay service from the different VAN company in order to be, proposed the credit card settlement system which uses the Switching Agent.

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Development of a Web-based Information System for Rural Settlement Environment Diagnosis (웹기반의 농촌정주환경진단 정보시스템 개발)

  • Bae, Seung-Jong;Kim, Dae-Sik;Kim, Tae-Gon
    • Journal of Korean Society of Rural Planning
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    • v.16 no.3
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    • pp.117-129
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    • 2010
  • The purpose of this paper is to develop a web-based information system for rural settlement environment diagnosis which is useful to apply the village based evaluation for new rural development projects. To achieve this purpose, this study performed : 1) analyzing the business process in the field of rural settlement environment diagnosis, 2) designing the data flow diagram and the database based on settlement environment diagnostic indices(SEDI), and 3) developing the system using APM (Apache, PHP, and MySQL) of web-system development environment. The developed system was applied to the study rural villages for testing of efficient and logical working. Users of the system, such as, researchers, decision makers, and rural residents, can input directly the village data to diagnose through a file format of Excel in MS Office. Futhermore, they can analyze the visual results with graphic and graph types, simultaneously. From the results of this study, it showed that the developed system enables decision-makers not only to assist the planning process of the rural village development project, but also to improve the level of information technology in the research and planning field concerning with rural development.

Settlement of Fine Recycled-concrete Aggregates Foundation under Sewage Conduit System (폐콘크리트 재생잔골재의 하수관거 모래기초 적용에 따른 침하 거동)

  • Oh, Je-Ill;Ahn, Nam-Kyu;Lee, Ju-Young
    • Journal of Korean Society of Environmental Engineers
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    • v.27 no.5
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    • pp.486-490
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    • 2005
  • Fine recycled-concrete aggregates(RCAs) instead of natural sand were tested for a foundation material under sewage conduit system, which was evaluated based on foundation settlement at various conditions. To obtain this applicability of RCAs, the settlement behavior was simulated with FLAC program based on the difference of material properties, and immediate settlement behaviors and the change of material properties under the simulated drainage conditions also tested at the various loading conditions in the laboratory. Finally, large-scale settlement test in the field was conducted to prove the above feasibilities. Subsequently, the amount of settlement from the FLAC simulation was calculated under $5.0{\times}10^{-6}\;m$ and the extent of settlement and property changes (porosity, permeability and waster absorption) was not noticeable from the laboratory experiments. Also, settlement monitoring from the field experiment showed the consistent results with laboratory experiments except for the consolidation settlement(=5 mm) of the round below the foundation. In summary, adopting fine RCAs as a foundation material for sewage conduit system was resonable based of geotechnical point of view.

The Revision Trend of UNCITRAL Model Law on International Commercial Mediation (국제상사조정제도에 관한 UNCITRAL 모델법 개정 동향)

  • Hyun-Suk Oh;Sung-Ryong Kim
    • Korea Trade Review
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    • v.45 no.1
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    • pp.31-45
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    • 2020
  • As FTAs are introduced, greater trade between the countries results in more disputes between parties to the agreement. Disputes in international trade have previously been settled mainly through international arbitration. However, with the recent rise in negative aspects of the arbitration system, the international community has begun to seek ways to utilize mediation for replacing the arbitration system. Mediation is a dispute settlement system that helps the parties settle their disputes on their own through negotiations. The UNCITRAL, which seeks to unify and develop international trade law, amended the Model Mediation Law in 2018 and adopted the 'United Nations Convention on International Settlement Agreements Resulting from Mediation' in August 2019 to enable the adoption of the international settlement agreement. This study analyzes the main contents of the 2018 Model Mediation Law and predicts the potential for the development of international commercial mediation as a dispute settlement procedure for future international trade.

Changes in Rural Settlement Development System and its Effects on the facilities & houses of Village settlements in Rural area (농촌마을 개발제도의 변천과 농촌마을에 대한 영향)

  • Cho, Joon-Beom;Choi, Chan-Hwan
    • Journal of the Korean Institute of Rural Architecture
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    • v.1 no.2
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    • pp.109-117
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    • 1999
  • The purpose of the study is to evaluate the Rural Settlement Development(RSD) driven by government in historical view, and its effects on the facilities and houses of rural village in the country. Through the study, we have come to the results that the major concerns of the RSD projects since 1950s has been transferred to as following. First, the reformation of inter-facility; dressing room, kitchen, bath-house, etc of rural houses, from that of outer facility; roof, fence and etc. Secondly, the substantial objects of the projects of village settlement improvement have been changed from partial reformation of individual houses, public facilities, etc early, to comprehensive reformation by master plan for village settlement recently. Lastly, those have been established that the process of planning village settlement available to carry out landuse division and the various program for village improvement, based on its inherent circumstances.

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An Improvement Plan of Ex-post Settling up System on the Social Insurance of Construction Project - Focused on the National Pension and National Health Insurance - (건설공사 사회보험료 사후정산제도의 문제점 및 개선방안 - 국민연금 및 국민건강보험을 중심으로 -)

  • Oh, Chi-Don
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.35 no.1
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    • pp.29-36
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    • 2019
  • In the past, social insurance premiums, such as national pension and national health insurance, is contained within the costs of construction projects, have been lowered due to price competition of companies participating in the bidding. The government is implementing the "Ex-post settlement system" to improve the problem. Therefore, the purpose of this study is to examine the concept of an Ex-post settlement system and background of its introduction and to identify problems in the management of the system. The problems of the Ex-post settlement system are: 1) avoiding the participation of construction workers, 2) the rigidity of the insurance premium settlement method in construction field, and 3) the cause of direct construction cost reduction. The ways to improve these problems are: 1) excluding social insurance premiums from construction project cost, 2) securing flexibility of the settlement method of insurance premiums in construction field, and 3) expanding the scope of persons eligible to participate in social insurance.

The Problems and Implications of the Dispute Settlement System in the WTO Regime With a Particular Reference to the Appellate Body - (WTO체제 분쟁해결제도의 문제점과 시사점 -상소기구를 중심으로-)

  • Hong, Sung-Kyu
    • Journal of Arbitration Studies
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    • v.30 no.4
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    • pp.3-29
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    • 2020
  • The WTO's dispute settlement system has played a significant role in settling trade disputes between countries, and its function and role have been expanded by handling about 596 disputes since its establishment in 1995. This shows that the WTO's dispute settlement system is gaining enormous trust among member countries that it recognizes as a fair, effective, and efficient system for resolving trade disputes. The U.S. remains uncooperative in the WTO dispute settlement system, citing disregard for the 90-day deadline for appeals, continued service by persons who are no longer A.B. members, issuing advisory opinions on issues not necessary to resolve a dispute, A.B. review of facts, and review of a member's domestic law de novo. The A.B. claims its reports are entitled to be treated as a precedent. These problems should be gradually improved through various discussions and agreements by establishing a multilateral forum for resolving disputes and gradually ending the problems through reform of the DSU.

Implementation of payment settlement system through Cyber Bank for Electronic Commerce (전자상거래용 사이버뱅크의 지불결제시스템 구축)

  • Kim, Moon-Shik;Lee, Eun-Seok
    • The KIPS Transactions:PartD
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    • v.15D no.1
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    • pp.121-130
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    • 2008
  • In line with the enhanced weight and variety of electronic commerce in business activities, new type of payment settlement and banking system which will enable to store, create and transfer values from the existing method of payment settlement is highly required. Cyber Banking system draws strong attention being the solution of there requirements. The existing Cyber Banking system has the difficulty of operation, administration, in addition to the problem of initial facility investment of big amount, resulted from the usage of the current business process. As the existing Cyber Bank system is unable to carry out the function of storing, creating, and transferring values due to the adoption conventional credit card system instead of the application of non-stop payment system between the seller and buyer. As a result, current Cyber Bank system still imply the deficiency of non-performing cash payment function on internet. This paper describes (1) an integrated application process, One Process One Input (OPOI) which is essential for software development of the Cyber Bank, (2) an application process of payment settlement system to be applied to the electronic commerce in Internet. And then, with these for a basis, (3) design and implementation of payment settlement system through CyberBank for Electronic Commerce. Consequently, by means of this suggested process, we could attempt to solve the problem of existing Cyber Bank system and further to explore the possibility of advanced Cyber Banking being the non-stop payment settlement system. The effectiveness of this suggested system has been practically confirmed.

Evaluation of Effect for Connector System in Reinforced Earth Retaining Wall (보강토 옹벽에서 연결시스템의 영향성 평가)

  • Lee, Jun-Dae;Heo, Yol;Ahn, Kwang-Kuk;Lee, Yong-Jun
    • Journal of the Korean Society of Safety
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    • v.21 no.4 s.76
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    • pp.85-94
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    • 2006
  • In this study, in order to evaluate the effect of two types of connector systems in reinforced retaining wall, the centrifugal tests for the conventional connector and new settlement connector system were performed. In the centrifugal tests, the aluminum plate for the face was used and the aluminum foil was used as a reinforcement. The granite soil was adopted as a fill. As a result, The settlement reinforced retaining wall reached to the failure at 80g-level. In contrast, the conventional reinforced retaining wall was collapsed at 69g-level. It means that the settlement reinforced retaining wall has the stronger stability than the conventional reinforced retaining wall. In addition, it was shown that the settlement connector system is more effective to release the stress concentration occurred at the face of reinforced retaining wall than the conventional connector system.