• 제목/요약/키워드: resolution issue

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Improvement of KOMPSAT-5 Image Resolution for Target Analysis (객체 분석을 위한 KOMPSAT-5 영상의 해상도 향상 성능 분석)

  • Lee, Seung-Jae;Chae, Tae-Byeong
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.30 no.4
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    • pp.275-281
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    • 2019
  • A synthetic aperture radar(SAR) satellite is more effective than an optical satellite for target analysis because an SAR satellite can provide two-dimensional electromagnetic scattering distribution of a target during all-weather and day-and-night operations. To conduct target analysis while considering the earth observation interval of an SAR satellite, observing a specific area as wide as possible would be advantageous. However, wider the observation area, worse is the resolution of the associated SAR satellite image. Although conventional methods for improving the resolution of radar images can be employed for addressing this issue, few studies have been conducted for improving the resolution of SAR satellite images and analyzing the performance. Hence, in this study, the applicability of conventional methods to SAR satellite images is investigated. SAR target detection was first applied to Korea Multipurpose Satellite-5(KOMPSAT-5) SAR images provided by Korea Aerospace Research Institute for extracting target responses. Extrapolation, RELAX, and MUSIC algorithms were subsequently applied to the target responses for improving the resolution, and the corresponding performance was thereby analyzed.

A study on the actual condition for remodelling of front balcony in Apartment residence (아파트 전면 발코니 공간 리모델링을 위한 실태조사 연구 - 청주시 지역을 중심으로 -)

  • 이승우;황태주;김정진
    • Korean Institute of Interior Design Journal
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    • no.32
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    • pp.55-63
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    • 2002
  • The purpose of this study is to research on the actual condition for remodelling of front balcony In Apartment residence. It is analysed the theorical study, Question research and the point at issue of balcony space. The results were as follows : First, it has lowered the practical use of balcony space. The resolution at issue need the plan with demand of dwellers. Second, it is classified three categories about demand of dwellers : the space of nature & ecology, utility and finally rest like living function. Third, it is needed the plan that these three categories are mixed properly than separated..

Large-volume and room-temperature gamma spectrometer for environmental radiation monitoring

  • Coulon, Romain;Dumazert, Jonathan;Tith, Tola;Rohee, Emmanuel;Boudergui, Karim
    • Nuclear Engineering and Technology
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    • v.49 no.7
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    • pp.1489-1494
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    • 2017
  • The use of a room-temperature gamma spectrometer is an issue in environmental radiation monitoring. To monitor radionuclides released around a nuclear power plant, suitable instruments giving fast and reliable information are required. High-pressure xenon (HPXe) chambers have range of resolution and efficiency equivalent to those of other medium resolution detectors such as those using NaI(Tl), CdZnTe, and $LaBr_3:Ce$. An HPXe chamber could be a cost-effective alternative, assuming temperature stability and reliability. The CEA LIST actively studied and developed HPXe-based technology applied for environmental monitoring. Xenon purification and conditioning was performed. The design of a 4-L HPXe detector was performed to minimize the detector capacitance and the required power supply. Simulations were done with the MCNPX2.7 particle transport code to estimate the intrinsic efficiency of the HPXe detector. A behavioral study dealing with ballistic deficits and electronic noise will be utilized to provide perspective for further analysis.

A Study on the Design of URN Resolution System Using Bibliographic Identifiers as URN - ISBN, ISSN, NBN as Its Central Issue - (서지식별기호를 이용한 URN 변환 시스템 설계에 대한 연구 - ISBN, ISSN, NBN을 중심으로 -)

  • 김성준;홍현진
    • Journal of Korean Library and Information Science Society
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    • v.33 no.4
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    • pp.149-177
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    • 2002
  • LRIs are identifier schemes for reliable information access. To achieve more reliable access to resource this study used existing bibliographic numbers, ISBN, ISSN, NBN as URM. For the purpose of this study, 10 study standards from the RUN requirement of function capability. coding capability, and URM framework were set. Under the standards examined existing bibliographic numbers can be used as URN and so URN resolution systems using existing bibliographic numbers were desisted.

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A Study on the Key Features of the Revision of Arbitration Rules for Major International Arbitration Institutions (주요 외국중재기관의 규칙 개정 현황에 대한 고찰)

  • Kim, Jung Nyun
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.64
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    • pp.99-128
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    • 2014
  • Last year, Seoul International Dispute Resolution Center(SIDRC) was set up to facilitate and promote international arbitration in Korea. This study was focused on the revision of arbitration rules such as ICC, SIAC, HKIAC and JCAA. As a leading arbitration institution in the world, ICC has tried continuously to provide more efficient service to their client by adopting emergency arbitrator(EA) & multi party arbitration. Other three institutions also introduced almost same mechanism to compete each other. These two new system is very innovative in international arbitration. First of all, EA was designed to provide interim measure service to preserve or protect parties' right before the constitution of arbitral tribunal. Arbitration institutions and arbitral tribunals should be careful to decide these requests are legitimate or not because too hasty approval on joinder or consolidation without full consideration such as parties' intention or argument may issue another serious problem - setting aside an award rendered after joined or consolidated.

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A Study on the Rural Waste Problem and Resolution (농촌쓰레기 관리실태와 해결 방안 연구)

  • Yoon, Eui-Young
    • Journal of Agricultural Extension & Community Development
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    • v.10 no.2
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    • pp.239-249
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    • 2003
  • Waste policy instruments such as garbage bag-fee system and recycling policy initiated in 1995 have contributed to the reduction of solid waste generation. Rural areas now produce less amount of solid wastes in terms of per capital than urban areas and as compare to a decade ago. However, most policy efforts since the early 1990s related to waste issue have been concentrated in urban areas. Waste problems in rural areas are not the amount itself, but the specific characteristics which are unique in rural regions. Large portion of solid wastes and farming wastes are being illegally treated and/or burned out. Surveys show that the main reasons for the illegal treatment of rural wastes are th lack of systematic policy tools targeting on them, insufficient financial capacity and man power of local governments, rural people's cognition problem about wastes, among others. This study reviews current features of the treatment of rural solid wastes and provides policy suggestions for the resolution of the problem.

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An Effective WSSENet-Based Similarity Retrieval Method of Large Lung CT Image Databases

  • Zhuang, Yi;Chen, Shuai;Jiang, Nan;Hu, Hua
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.16 no.7
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    • pp.2359-2376
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    • 2022
  • With the exponential growth of medical image big data represented by high-resolution CT images(CTI), the high-resolution CTI data is of great importance for clinical research and diagnosis. The paper takes lung CTI as an example to study. Retrieving answer CTIs similar to the input one from the large-scale lung CTI database can effectively assist physicians to diagnose. Compared with the conventional content-based image retrieval(CBIR) methods, the CBIR for lung CTIs demands higher retrieval accuracy in both the contour shape and the internal details of the organ. In traditional supervised deep learning networks, the learning of the network relies on the labeling of CTIs which is a very time-consuming task. To address this issue, the paper proposes a Weakly Supervised Similarity Evaluation Network (WSSENet) for efficiently support similarity analysis of lung CTIs. We conducted extensive experiments to verify the effectiveness of the WSSENet based on which the CBIR is performed.

An Assessment on the Containment Integrity of Korean Standard Nuclear Power Plants Against Direct Containment Heating Loads

  • Seo, Kyung-Woo;Kim, Moo-Hwan;Lee, Byung-Chul;Jeun, Gyoo-Dong
    • Nuclear Engineering and Technology
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    • v.33 no.5
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    • pp.468-482
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    • 2001
  • As a process of Direct Containment Heating (DCH) issue resolution for Korean Standard Nuclear Power Plants (KSNPs), a containment load/strength assessment with two different approaches, the probabilistic and the deterministic, was performed with all plant-specific and phenomena-specific data. In case of the probabilistic approach, the framework developed to support the Zion DCH study, Two-Cell Equilibrium (TCE) coupled with Latin Hypercubic Sampling (LHS), provided a very efficient tool to resolve DCH issue. In case of the deterministic approach, the evaluation methodology using the sophisticated mechanistic computer code, CONTAIN 2.0 was developed, based on findings from DCH-related experiments or analyses. For three bounding scenarios designated as Scenarios V, Va, and VI, the calculation results of TCE/LHS and CONTAIN 2.0 with the conservatism or typical estimation for uncertain parameters, showed that the containment failure resulted from DCH loads was not likely to occur. To verify that these two approaches might be conservative , the containment loads resulting from typical high-pressure accident scenarios (SBO and SBLOCA) for KSNPs were also predicted. The CONTAIN 2.0 calculations with boundary and initial conditions from the MAAP4 predictions, including the sensitivity calculations for DCH phenomenological parameters, have confirmed that the predicted containment pressure and temperature were much below those from these two approaches, and, therefore, DCH issue for KSNPS might be not a problem.

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A Study on the Course of the Developing of Mediation System in Korea (한국조정제도의 발전방향)

  • 이주원
    • Journal of Arbitration Studies
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    • v.12 no.1
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    • pp.89-122
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    • 2002
  • Mediation is defined most simply as facilitated negotiation. An impartial third party(the mediator) facilitates negotiations between disputants or the disputants' representatives in their search for a resolution of their dispute. The disputants remain responsible for negotiating a settlement; the mediator's role is to assist the process in ways acceptable to the disputants. Sometimes this means merely providing a forum for negotiations or convening the negotiations. More often it menas helping the disputants find areas of common ground for resolution, offering alternatives, supervising the bargaining, then drafting the final settlement. mediation can occur between two disputants seeking to resolve one issue, or among many disputants seeking to resolve several issues. The disputants can participate in mediation themselves or they can have representatives negotiate for them. Mediation most often is a voluntary process. In Korea, as mediation could not have developed for lack of people's correct understanding on it, there must be enlightenment against the people, and it needs subsidiary from government and support from lawers. In order for the lawers to accomplish their role in progressing mediation procedure favorably, they should study and develope on the skill on mediate the case. Furthermore through the good mediation system, it also needs to induce the parties to participate in mediation procedure voluntarily. On the other hand, It also needs to bring up and develope the ADR institution to proceed the mediation impartially and effectively, and let them improve the mediation systems, like the Korean Commercial Arbitration Board.

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A study on OID Resolution System for RFID, USN (RFID, USN에서의 OID 해석시스템에 관한 연구)

  • Yi, Seung-Jai;Jin, Chung-Hee;Kim, In-Hye;Noh, Enu-Hee
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.2B
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    • pp.210-214
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    • 2010
  • Standard about OID(Object Identifier) to implement on Internet is discussed at ITU-T, ISO/IEC. The OID should be stored and searched for object on Internet, which is called 'ORS(OID Resolution System)'. The ORS is made by international standard for identifying RFID code types, and in the future would be discussed for USN, u-Health, etc. Therefore, this paper describes the current status of the international standard discussing ORS concept, system structure and protocol, the present issue of the ORS used for RFID and the method for USN services.