• Title/Summary/Keyword: Naming Scheme

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Content Centric Networking Naming Scheme for Efficient Data Sharing (효율적인 데이타 교환을 위한 Content-Centric Networking 식별자 방안)

  • Kim, Dae-Youb
    • Journal of Korea Multimedia Society
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    • v.15 no.9
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    • pp.1126-1132
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    • 2012
  • To enhance network efficiency, CCN allow intermediate network nodes between a content consumer and a content publisher to temporarily cache transmitted contents. Then the network nodes immediately return back the cached contents to another consumers when the nodes receives relevant contents request messages from the consumers. For that, CCN utilizes hierarchical content names to forward a request message as well as a response message. However, such content names semantically contain much information about domain/user as well as content itself. So it is possible to invade users' privacy. In this paper, we first review both the problem of CCN name in the view point of privacy and proposed schemes. Then we propose an improved name management scheme for users' privacy preservation.

PCIA Cloud Service Modeling and Performance Analysis of Physical & Logical Resource Provisioning (PCIA 클라우드 서비스 모델링 및 자원 구성에 따른 성능 영향도 분석)

  • Yin, Binfeng;Kwak, Jong Wook
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.2
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    • pp.1-10
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    • 2014
  • Cloud computing provides flexible and efficient mass data analysis platform. In this paper, we define a new resource provisioning architecture in the public cloud, named PCIA. In addition, we provide a service model of PCIA and its new naming scheme. Our model selects the proper number of physical or virtual resources based on the requirements of clients. By the analysis of performance variation in the PCIA, we evaluate the relationship between performance variation and resource provisioning, and we present key standards for cloud system constructions, which can be an important resource provisioning criteria for both cloud service providers and clients.

Perspectives on the Revitalization of Rural Village by Improving Management Scheme for the Dangsan Forest in Singeum Village, Goheung-gun (고흥군 신금마을 당산숲의 관리 개선을 통한 농촌마을 활력 제고방안 고찰)

  • Choi, Jai-Ung;Kim, Dong Yeob;Kim, Mi Heui;Ahn, Ok Sun
    • Journal of Agricultural Extension & Community Development
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    • v.20 no.2
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    • pp.535-554
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    • 2013
  • This study was to investigate the characteristics and management condition of the Singeum village's Dangsan forest, and to seek the revitalization of rural village by improving management scheme. The Dangsan forest in Singeum-ri, Goheung-gun was composed of a Dangsan forest and a Bibo forest. The Dangsan forest was designated as natural monument # 362, and named 'Evergreen forest of Bongnae-myeon, Goheung'. The Dangsan forest area has been disturbed by the building of student training center. Even the local resident couldn't enter the forest due to the fence at the forest boundary except for Dangsan ritual which used to be serviced once a year. The Bibo forest was included in a beach area, and disturbed by lack of management. The Dangsan forest did not stay in good condition with various problems, such as wrong naming as a natural monument and misuse. The driving force of the Dangsan forest maintaining the beauty for several hundred years originated from the conservation of the forest with Dangsan ritual by local residents. Today, the Dangsan forest is in danger of being vanished and not regarded any more as a holy place due to inaccessibility for Dangsan ritual. The Dangsan forest in Singeum village needs to enhance its value as a traditional and cultural landscape, and improving the management scheme will contribute to revitalization of the village.

Characterization of Ferrallitique Soils (Ferrallitique토양(土壤)의 특성(特性)에 관(關)한 연구(硏究))

  • Sin, Cheon-Soo
    • Korean Journal of Soil Science and Fertilizer
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    • v.18 no.3
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    • pp.260-264
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    • 1985
  • Ferrallitique soils are real tropical soils, with an oxic B horizon such a horizon is at least 30cm thick, has > 15% clay, diffuse horizon boundaries, no weatherable minerals and a CEC of clay < 16 me per 100g. These soils are in general the real reddish or yellowish very uniform tropical clay soils with an orchric A horizon and a deep B horizon, otherwise almost characterless. The soil profile looks uniform and maybe some metres thick. It is well drained, has a good permeability and a stable structure. As there is little or no weatherable mineral, because these soils are old and exhausted of bares, natural fertility is very low. There has been a complicated process of soil formation. Intensive and continuous weathering over a very long period has resulted in leaching of bases and silica, in relative accumulation of resquioxides and in formation of kaolinitic clay. Until recently, there has been much confusion in classifing and naming tropical soils. Particularily what are now Ferralsols in the FAO scheme, and Oxisols in Soil Taxonomy. Old names of various classification system are: Lateritic soils, Latosols, Ferrallitic soils. For agriculture, these soils are important, but chemically very poor, not only because of a low CEC but also because of deficiency of bases, especially Ca, Mg, and K, strong P fixation and high exchangeable Al percentage.

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Prevention Scheme of DDoS Attack in Mobile WiMAX Networks Using Shared Authentication Information (Mobile WiMAX 네트워크에서 공유 인증 정보를 이용한 분산 서비스 거부 공격 방어)

  • Kim, Young-Wook;Bahk, Sae-Woong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.2B
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    • pp.162-169
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    • 2009
  • Message Authentication Code (MAC) assures integrity of messages. In Mobile WiMAX, 128-bit Cipher-based MAC (CMAC) is calculated for management messages but only the least significant half is actually used truncating the most significant 64 bits. Naming these unused most significant 64bits Shared Authentication Information (SAI), we suggest that SAI can be applied to protect the network from DDoS attack which exploits idle mode vulnerabilities. Since SAI is the unused half of CMAC, it is as secure as 64bits of CMAC and no additional calculations are needed to obtain it. Moreover, SAI doesn't have to be exchanged through air interface and shared only among MS, BS, and ASN Gateway. With these good properties, SAI can efficiently reduce the overheads of BS and ASN GW under the DDoS attack.

Location reference technique of ITS Space Database supporting interoperability (상호운용성을 지원하는 ITS 공간 데이터베이스의 위치참조 기법)

  • Kim, Suk-Hee;Choi, Kee-Choo;Jang, Jeong-Ah
    • Journal of Korean Society for Geospatial Information Science
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    • v.12 no.1 s.28
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    • pp.45-53
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    • 2004
  • The purpose of this paper is to study a scheme to ITS service which enables the data (spatial, non-spatial and image) sharing among heterogeneous system (various environment) with employing the concept of object orientedness and to show Location Reference Technique of ITS Space DB for interoperability. Data warehouse service, query object service, interface object service, and naming object service have been identified for this. In addition, a metadata management object service and persistent object service based system framework has been devised. The proposed skeletal framework would be expected to be functioning well for ITS data sharing environment and for the interoperability support.

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A Study on the Structural Characteristics and Improvement Scheme of Landscape Management for the Traditional Village Forest in Dangin-ri, Wando-gun (완도군 당인리 전통마을숲의 구조적 특성 및 경관관리 개선방안 연구)

  • Choi, Jai-Ung;Kim, Dong-Yeob;Kim, Mi-Heui;Ahn, Ok-Sun
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.4
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    • pp.83-97
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    • 2013
  • The traditional village forests in Korea such as Dangsan forests and Bibo forests form unique cultural landscape and they are national cultural assets with histories of more than several hundred years. It is important to have sustainable right to enjoy cultural heritage as well as maintaining its authenticity. Cultural assets are meaningful only when they are managed to succeed to next generations. Dangsan forests and Bibo forests need to be named properly and recognized by society as a precious cultural heritage for many generations to come in order to claim the value as traditional cultural landscapes in Korea. The traditional village forest in Dangin-ri, Wando-gun was composed of a Dangsan forest and five Bibo forests. Although this traditional village forest is large in size, it was not on the report of Cultural Heritage Administration(2005) investigated for 'Village forest of island region in Jeollanam-do'. The objective of this study was to investigate the characteristics of the traditional village forest in Dangin-ri to grant correct name and to enhance its value. In this study the characteristics of a Dangsan forest and five Bibo forests were investigated from 2006 to 2013 for physical features such as size, shape, location, tree species composition, and diameter at breast height(DBH), as well as cultural aspects and tradition. Currently the naming and designation of natural monuments by the cultural heritage administration(CHA) is based on the rule enacted in 1934. Many Dangsan forests were named as evergreen forests. This type of names does not represent the meaning of traditional village forest. It was suggested that this traditional village forest is to be named as 'Dangsan Forest and Bibo Forests at Dangin-ri, Wando-gun'. This traditional village forest needs to reclaim authenticity and rebuild its original appearance by restoration of the disturbed areas, especially in Bibo forest I.

Seongdam Song Hwan-gi's Understanding of Buddhism (성담(性潭) 송환기(宋煥箕)의 불교인식)

  • Kim, Jong-soo
    • Journal of the Daesoon Academy of Sciences
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    • v.38
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    • pp.209-242
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    • 2021
  • This manuscript started with the purpose of producing research that investigated and verified how Buddhism was understood by Seongdam (性潭) Song Hwan-gi (宋煥箕), the founder (宗匠) of Horon (湖論) who was active around the early 19 th century. Song Hwan-gi, Uam (尤菴) Song Si-yeol (宋時烈)'s fifth generation, was a scholar who had a deep sense of duty to inherit the Theory of Uam (尤菴學), and he adhered to the Confucian theory of genealogy (道統論) and Anti-Heresy Discourses. Thus, this manuscript expressed curiosity about Song Hwan-gi's understanding of Buddhism, which was the representative heresy. This manuscript examined the naming method of Buddhist clergy (僧侶), degree of pedagogical knowledge, and critical statements that were made concerning Buddhist tales (說話). Meanwhile, it is noticeable that the terms of address for Buddhist clergy were composed of four categories: general terms, honorific forms, palanquins [輿], and miscellaneous terms of address. This scheme conforms to the Buddhist-friendly aspects of Song Hwan-gi. Examples of these terms of address include Danseung (擔僧) and Yeoseung (輿僧), both of which were Buddhist clergy who carried palanquins. Naturally, Song Hwan-gi was helped by Buddhist clergy when he went sightseeing on famous mountains. In the meantime, Song Hwan-gi's pedagogical knowledge can be shown to be not especially profound based on his understanding of The Diamond Sutra, The Avatamska Sutra, and The Shurangama Sutra. Cheongnyansan Travel Records (淸凉山遊覽錄) and Dongyu Diary (東遊日記) make it clear that Song Hwan-gi had no interest in taking refuge in the three treasures of Buddhism (佛法僧 三寶). It is rather the case that he was deeply critical of Buddhism. On the other hand, Song Hwan-gi expressed profound sadness when he encountered the dilapidated remains (古蹟) of Buddhist temples and hermitages. Consequentially, it can be concluded that Song Hwan-gi's understanding of Buddhism contained examples of affirmation, acceptance, denial, and exclusion.