• Title/Summary/Keyword: settlement system

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The Survey of Disappeared Villages in The Demilitarized Zone (DMZ 내 사라진 마을의 공간적 분포와 특성)

  • Kim, Chang-Hwan
    • Journal of the Korean Association of Geographic Information Studies
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    • v.12 no.1
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    • pp.96-105
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    • 2009
  • The purpose of this study is to analyze the spatial distribution and characteristics of villages before modern public works in the Demilitarized Zone(DMZ) by using Geographical Information System(GIS). There were total 427 villages within the DMZ according to a survey. By the administrative region, whereas there were 183 villages in Gangwon Province which had a share of 43% of the total, there were 244 villages in Gyeonggi Province which had that of 57%. Subsequently, Gyeonggi Province had a higher share than Gangwon Province, even though its area was smaller than Gangwon Province's one. In terms of the pattern of villages, there was a pattern of the dispersed settlement focused upon the area of the Taebaek mountains. In addition, there were a pattern of the dike settlement by a traffic route and river as well as that of agglomerated settlement in other area. There was a pattern of compact settlement in a plain. This research can be contributed (1) to be used a basic information in order to solve a conflict between development and conservation which may occur in the future, and (2) to be applied to develop contents for the DMZ's competitiveness.

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A numerical study on the three-dimensional ground movement by the trenchless construction method of concrete box by a square steel pipe supporting system (사각형 강관을 이용한 비개착 시공에 따른 지반거동의 분석: 수치해석)

  • Choi, Soon-Wook;Park, Young-Taek;Chang, Soo-Ho;Bae, Gyu-Jin;Lee, Ki Taek;Baek, Yong Ki
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.14 no.5
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    • pp.469-484
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    • 2012
  • This study aims to numerically investigate ground movement around a square steel pipe as well as a group of square steel pipes induced by its and their ground penetration for trenchless construction of a concrete box. From numerical results, ground movement induced by a square steel pipe is much more dominantly governed by vertical displacement rather than horizontal displacement. Ground settlement induced by pipe penetration is much larger as the overburden becomes lower. The settlement is also shown to be slightly dependent upon the sequence of pipe penetration. More careful construction management is highly in demand during the penetration of upper pipes since their induced settlement occupies approximately 75 percent of total ground settlement after the whole construction of steel pipes.

Spatial Pattern of the Settlement-Communality in Rural Mountain Area (정주공동성의 공간적 존재형태에 관한 연구(1) -산간지역(평창군 미탄면)의 사례를 중심으로-)

  • 윤원근;이상문
    • Journal of Korean Society of Rural Planning
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    • v.3 no.2
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    • pp.36-49
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    • 1997
  • The drastic change of mountain community, which have led existing villages to a size reduction or an extinction, makes this study concentrate on finding out the new community unit as a spatial zone of dayily life and agricultural production. The communality which has played a key role in a aura settlement consistency has been focused on the socio-economic aspect till now, neglecting the spatia] nature. The settlement-communality( SC) putting a stress on the spatial aspect can be, therefore, shapec as being multi-dimensional, composed of both a horizontally areal coverage on the surface of the residential place and a vertically hierarchial relationship between settlements, by analyzing thro( elements of communality that are the economic, socio -cultural and spatial activities. The research site is located administratively in Milan-Myoun, Pyoungchang-Gun, Gangwon-Do that ha: the characteristics as a typical mountain community. The results of field survey of which the method i: to draw the activity zone from an interview with every village's head and some residents with th( prepared questionaire can be summarized as followings. Firstly, the SC in almost all villages tended to be weakened or extincted, none the less, the spatia zone of that overally enlarged and got out of natural village unit(hamlet). However the areal coverall on which the SC has an influence reaches up to the alliant domain of a few villages generally congruen with the lowest level administrative district, Secondly, the economic and social activity pattern in village life has a tendency to be directly linked with a upper central place, so that has induced the function of a central village in the middle-low settlement hierarchy to be largely shrinked. Not only the conventional residents'access to goods service but also the recent service-delivers'access to residents has gradually formed the vertical communality with direct linkage between the upper and the bottom level settlements Lastly, the enfeeblement of the SC in the lowest settlement level tends to be supplemented by enlarging the horizontal zone of the SC or especially by strengthening the vertical direct linkage system. The very this point makes the mountain community open to the external world and also makes the spatial unit of community be multi-dimensional just like a cubic.

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A Study on the Equivalence Requirement of WTO Retaliation (WTO 보복조치의 동등요건에 관한 연구)

  • Kang, Soo-Mi
    • Journal of Arbitration Studies
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    • v.23 no.2
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    • pp.81-113
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    • 2013
  • The World Trade Organization (WTO) offers remedies for non-compliance by the introduction of compensation or retaliation in the Dispute Settlement Understanding (DSU). There are no the provisions under the WTO DSU and it seems unclear what retaliation is attempting to achieve. Therefore, it is unclear whether the goal of WTO retaliation is to induce compliance or to restore the balance between the rights and the obligations of WTO members. It has been claimed the WTO has a strong dispute settlement system by providing retaliation when the recommendations and rulings of Dispute Settlement Body (DSB) are not complied with. But this seems to be inadequate to bring about effective and timely compliance. Especially there is a problem with free riding by a violating member because the level of retaliation is determined from the expiration of a reasonable period of time, providing an incentive to delay compliance. Also the level of the suspension of concessions or other obligations authorized by the DSB is equivalent to the level of nullification or impairment, according to DSU Article 22.4. However, if the member concerned objections to the level of the suspension proposed, the matter shall be referred to arbitration. The arbitrator shall not examine the nature of the suspension of concessions or other obligations to be suspended but shall determine whether the level of such suspension is equivalent to the nullification or impairment. The arbitrator makes an assessment standard of equivalence by comparing the suspension of concessions or other obligations and the nullification or impairment calculated in terms of the amount of trade. But it is necessary that other standards replace the quantitative standards when the level of the nullification or impairment cannot be quantified by concrete damages.

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Improvement of pavement foundation response with multi-layers of geocell reinforcement: Cyclic plate load test

  • Khalaj, Omid;Tafreshi, Seyed Naser Moghaddas;Mask, Bohuslav;Dawson, Andrew R.
    • Geomechanics and Engineering
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    • v.9 no.3
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    • pp.373-395
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    • 2015
  • Comprehensive results from cyclic plate loading at a diameter of 300 mm supported by layers of geocell are presented. The plate load tests were performed in a test pit measuring $2000{\times}2000mm$ in plane and 700 mm in depth. To simulate half and full traffic loadings, fifteen loading and unloading cycles were applied to the loading plate with amplitudes of 400 and 800 kPa. The optimum embedded depth of the first layer of geocell beneath the loading plate and the optimum vertical spacing of geocell layers, based on plate settlement, are both approximately 0.2 times loading plate diameter. The results show that installation of the geocell layers in the foundation bed, increase the resilient behavior in addition to reduction of accumulated plastic and total settlement of pavement system. Efficiency of geocell reinforcement was decreased by increasing the number of the geocell layers for all applied stress levels and number of cycles of applied loading. The results of the testing reveal the ability of the multiple layers of geocell reinforcement to 'shakedown' to a fully resilient behavior after a period of plastic settlement except when there is little or no reinforcement and the applied cyclic pressure are large. When shakedown response is observed, then both the accumulated plastic settlement prior to a steady-state response being obtained and the resilient settlements thereafter are reduced. The use of four layers of geocell respectively decreases the total and residual plastic settlements about 53% and 63% and increases the resilient settlement 145% compared with the unreinforced case. The inclusion of the geocell layers also reduces the vertical stress transferred down through the pavement by distributing the load over a wider area. For example, at the end of the load cycle of the applied pressure of 800 kPa, the transferred pressure at the depth of 510 mm is reduced about 21.4%, 43.9%, 56.1% for the reinforced bases with one, two, and three layers of geocell, respectively, compared to the stress in the unreinforced bed.

Reinforcement Effectiveness and Arching Effect of Geogrid-Reinforced and Pile-Supported Roadway Embankment (지오그리드로 보강된 성토지지말뚝의 보강 및 아칭효과분석)

  • Shin, Eun Chul;Oh, Young In;Lee, Dong Hyun
    • Journal of the Korean Geosynthetics Society
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    • v.4 no.2
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    • pp.11-18
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    • 2005
  • A pilot scale filed model test and 2-D numerical analysis was conducted to evaluate the effectiveness of constructing a geogrid-reinforced and pile-supported embankment system over soft ground to reduce differential settlement, and the results are presented hearin. Three-by-three pile groups with varying the space between pile were driven into a layer of soft marine clay and a layer of geogrid was used as reinforcement over each pile group. 2-D numerical analysis has been conducted by using the FLAC-2D(Fast Lagrangian Analysis of Continua) program for same condition of field model test. The settlement, vertical stress, and strain of geogrid due to the construction of embankment were measured at various locations. Based on the field model test and numerical analysis results, pile reinforcement generated the soil arching at the midspan of pile cap and the geogrid reinforcement helps reduce the differential settlement of the soft ground by tensile strength of geogrid. Also for $D/b{\geq}6.0$, the effectiveness of geogrid reinforcement in reducing settlement is negligible.

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Development of a Network Expert System for Safety Analysis of Structures Adjacent to Tunnel Excavation Sites (터널굴착 현장에 인접한 지상구조물의 안전성 평가용 전문가 시스템의 개발)

  • 배규진;김창용;신휴성;홍성환
    • Explosives and Blasting
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    • v.17 no.4
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    • pp.67-88
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    • 1999
  • Ground settlements induced by tunnel excavation cause the foundations of the neighboring superstructures to deform. An expert system called NESASS was developed to analyze the structural safety of such superstructures. NESASS predicts the trend of ground settlements to be resulted from tunnel excavation and carries out a safety analysis for superstructures on the basis of the predicted ground settlements. Using neural network techniques, NESASS learns a data base consisting of the measured ground settlements collected from numerous actual fields and infers a settlement trend at the field of interest. NESASS calculates the magnitudes of angular distortion, deflection ratio, and differential settlement of the structure and, in turn, determines the safety of the structure. In addition, NESASS predicts the patterns of cracks to be formed on the structure using Dulacskas model for crack evaluation. In this study, the ground settlements measured from the Seoul subway construction sites were collected and sorted with respect to the major factors influencing ground settlement. Subsequently, a database of ground settlement due to tunnel excavation was built. A parametric study was performed to verify the reliability of the proposed neural network structure. A comparison of the ground settlement trends predicted by NESASS with the measured ones indicates that NESASS leads to reasonable predictions. An examples is presented in this paper where NESASS is used to evaluate the safety of a structure subject to deformation due to tunnel excavation near to the structure.

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A Study of Ways to Expand Use of ADR (대체적 분쟁해결제도(ADR)의 활성화 방안에 관한 고찰)

  • 김경배
    • Journal of Arbitration Studies
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    • v.12 no.1
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    • pp.171-205
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    • 2002
  • ADR (Alternative Dispute Resolution) is a system to settle disputes without having to pursue a judgment through the courts; it provides an alternative to conventional judicial proceedings. As such, ADR is available to resolve a wide range of disputes, ranging from minor disagreements between neighbors to contracts involving millions of dollars. One can say there has been “efficient resolution of a dispute” only when it has been settled rapidly and finally to the satisfaction of all parties concerned, inexpensively and in a transparent manner. In this respect, ADR may well be regarded as the most efficient method to resolve disputes. In order to establish and disseminate ADR as a practical dispute-settlement procedure, first, governmental financial support is necessary, rather than having to depend upon fees collected from the disputing parties. At the same time, various inducement policies also are required. The most important factor is to make people aware of the fact that ADR is a low-cost, speedy system and more practical compared with other procedures. Second, cooperation from legal circles, lawyers in particular, is absolutely necessary. If disputes become serious, the general public normally seeks out lawyers for advice. Third, disputing parties have to be convinced of the benefits of ADR, secure in the knowledge that ADR will provide them not only with economic benefit but also a satisfactory result. Diverse ADR procedures should be developed and implemented to facilitate participation in a comfortable atmosphere with a mutually friendly relationship. The most important factor in achieving the wider use of ADR, which is attracting more attention of late, is the expectation that it will bring a satisfactory resolution to the related parties in dispute. The trend of seeking a new dispute-settlement method also reflects the changing sense of values in society today. Therefore, one specific method is not suitable for all kinds of disputes. A proper system should offer different approaches according to the pattern and type of dispute and the parties concerned. In selecting a dispute-resolution system, several factors have to be considered - the relationship between the parties, their financial situations, the necessity of maintaining confidentiality, urgency for settlement, etc. In the light of all these, it is desirable for the disputing parties to select the most appropriate of the available systems, not blindly turning to the courts, if and when a dispute arises.

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A Comparison Analytical Study on the B2B Electronic Trade Settlement System (B2B 전자무역대금결제시스템 비교.분석에 관한 연구)

  • Song Yong-Jong
    • Management & Information Systems Review
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    • v.14
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    • pp.151-180
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    • 2004
  • Owing to the digital revolution, Internet Commerce and Electronic commerce, revolutionize the way of doing business and making payment. The entrance of the Internet has a prominent for spread of Electronic Commerce and those phenomenons will result in paperless trading and cashless trade. By virtue of Internet, an increasing share of business transactions occurs online. Electronic payment is essential for the smooth progress of the electronic commerce as electronic payment plays the important role in the electronic commerce, that is, the value transfer restyling from the electronic commerce. Traditionally international settlement systems such as letters of credits, remittance and documentary collections operated as important and poplar method of payment, Now, information technology has made it possible to pay for the sale of goods and services over the internet. In international trade, there are service providers (bolero, TradeCard, BeXcom) to settle payment electronically through the Internet. The purpose of this study is to Conduct comparative analysis with approach manner functional respect systematic respect, role. It is shown which the Electronic payment system is better. In this study, the author attempts to find the problems is (bolero, TradeCard, BeXcom) and solutions in switching from the documentary payment system to the electronic one. This conclusion of this study can be summarized as followings. In resoect of the law, bolero should seek to prevert the users from being treated unfairly due to multilateral agreement on Rulebook. TradeCard, BeXcom do not have the proper law that users are governed. so far as the practice problems concerned, stability of computer's operation and security of message interchange should be warranted and improved continuously. Through the standardization of the electronic document and the development of software, the examination of the shipping occuments must be done automatically. Bolero should induce more banks to take part in Bolero, and make the carrier the cost and time in managing the traditional document which will be used for the time being. In respect of information technology and security, to deduce the risk in the electronic settlement system and positively uses the global authentication guideline(Identrus).

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A Study on the Legal Issues of Inter-Korean Investment Disputes Settlement System (남북 투자분쟁해결의 법적쟁점에 관한 고찰)

  • Oh, Hyun-suk
    • Journal of Arbitration Studies
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    • v.29 no.2
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    • pp.3-34
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    • 2019
  • The resumption of economic cooperation between South and the North Korea will be a new growth engine for our economy. Many Korean companies are preparing to invest in North Korea in accordance with the progress of inter-Korean relations. However, there are many risks inherent in inter-Korean economic cooperation, as experienced in previous cases. Specifically, one should be prepared for unfair measures such as the expropriation of investment assets of South Korean enterprises by North Korea authorities. Therefore, it is essential to review the protection measures of investment in North Korea and to review the investment dispute settlement system. The South and the North have an agreement to establish the inter-Korean Commercial Arbitration Committee to resolve the disputes that may arise if one party's investments are lost due to inappropriate or unfair measures due to the other party's authority. However, the Investment Agreement, which governs the Inter-Korean Commercial Arbitration Committee, contains a number of declarative statements that are somewhat ineffective. Even today, nearly 20 years after the adoption of the Agreement, the specific detailed procedures have shown no real progress, such as in the enactment of arbitration rules. Therefore, at present, it is difficult to expect a system that can effectively address the damage of our corporations which have invested in North Korea. When the assets freeze after the suspension of Kumgang tourism and the closure of the Kaeseung Industrial Complex by North Korea, the activation of the inter-Korean Commercial Arbitration Committee is the most important prerequisite for economic cooperation with North Korea. For this purpose, the resolution of disputes through the Inter-Korean Commercial Arbitration Committee has to be made more concrete, with the effectiveness of the dispute settlement system enhanced by means of various efforts.