• Title/Summary/Keyword: 이중적 프로세스

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Analyzing evaluation factors of multimedia interface design - A study on the evaluation of multimedia interface design (2) (멀티미디어 인터페이스 디자인의 평가 요소 분석 - 멀티미디어 인터페이스 디자인의 평가에 관한 연구 (2))

  • 이지수;임창영;권은숙
    • Archives of design research
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    • v.11 no.1
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    • pp.153-160
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    • 1998
  • User, contents exchanged between user and computer system, and media are axes among the vanous factors related to multimedia interface. The points of contact resulted by three mam factors bring many design problems. User factor is most important among and its cognitive constraints become mam design principle for multi-modality features of multimedia. Because media could be understood differently depending on the level of information delivery, it is necessary that various characteristics and representation mode of media are clarified. This thesis develops design evaluation process that tells multimedia interface as a entity integrated with contents, media, and representation elements and assesses its sub elements whether they are correspond with design principal.

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Projection of Activity Duration Utilizing Historical Cost Data (자원투입 비용을 고려한 공정관리 작업기간 산정)

  • Moon, Sung-Woo;Kang, Sang-Rae
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2006.11a
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    • pp.444-447
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    • 2006
  • Construction managers need to pay a close attention to the resource utilization in order to deliver the construction project successfully. Construction scheduling is crucial for resource control in that it provides information when and how much to bring down work force to sites. In scheduling, activity duration is projected based on the productivity of historical data or the intuition of scheduler. This paper studies the opportunity of applying cost-based productivity for estimating activity duration. For cost-based productivity, the cost of resource is used as an input and the work quantities as an output. Out of historical data, regression model has been developed to understand the validity of applying cost-based productivity in projecting activity duration. The result of study will work as a prerequisite for implementing the environment of database-based construction scheduling.

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A Defense Mechanism Against Attacks on Files by Hiding Files (파일 은닉을 통한 파일 대상 공격 방어 기법)

  • Choi, Jione;Lee, Junghee;Lee, Gyuho;Yu, Jaegwan;Park, Aran
    • Journal of Korea Society of Industrial Information Systems
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    • v.27 no.2
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    • pp.1-10
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    • 2022
  • Deception technology is an extended concept of honeypot, which detects, prevents or delays attacks by deceiving adversaries. It has been applied to various system components such as network ports, services, processes, system calls and database management systems. We can apply the same concept to attacks on files. A representative example of a file attack is ransomware. Ransomware is a type of malware that encrypts user files and ask for ransom to recover those files. Another example is the wiper attack, which erases all or target files of a system. In this paper we propose a defense mechanism against these kinds of attacks by hiding files. Compared to backup or virtualization techniques, the proposed method incurs less space and performance overheads.

Forest Structure in Relation to Slope Aspect and Altitude in valley Forests at Hambaeksan Area (함백산지역 계곡부의 사면방향과 해발고에 따른 산림구조)

  • 박인협;최윤호;이석면;최영철;유석봉
    • Korean Journal of Environment and Ecology
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    • v.15 no.4
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    • pp.361-368
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    • 2002
  • The valley forests located at the east-facing slope and the west facing slope in Hambaeksan area were studied to investigate forest structure in relation to aspect and altitude of the slope. There was little difference in density. mean DBH and basal area of the tree layer between east-facing slope and west-facing slope. The importance percentages of Tilia amurensis and Betula costata in west-facing slope were higher than those in east-facing slope. However, the importance percentages of Quercus mongilica and Fraxinus rhynchophylla in the west facing slope were lower than those in east-facing slope. Species diversity of the west-facing slope was 1.415 and that of the east-facing slope was 1.328. Elevation trends were also found for forest structure. As elevation Increased basal area and mean height of the tree layer decreased in both of east-facing slope and west-facing slope. There was a tendency that number of species, species diversity and evenness decreased with increasing elevation. The importance percentage of Quercus mongolica increased with increasing elevation while those of Betula costata and Maackia amurensis decreased. The result of cluster analysis for the tree and subtree layer indicated that the studied forests were classified into the mixed forest community of broad-leaved tree species at west-facing slope and the low and middle elevation belts of east-facing slope and Quercus mongolica community at the high elevation belt of east-facing slope. Quercus mongolica was significantly and positively correlated with Symplocos chinensis for. pilosa, Acer tschonoskii var. rubripes and deutzia glabrata. Betula costata was significantly and negatively correlated with Quercus mongolica and Acer pseudo-sieboldianum.

A Study of System Architecture for Intelligent Responsive Space (지능형 반응 공간 기술 개발을 위한 시스템 아키텍처)

  • Yeom, Ki-Won;Lee, Joong-Ho;Lee, Seung-Soo;Eom, Ju-Il;Park, Joon-Koo;Kim, Rae-Hyeon;Jo, Hyeon-Cheol;Kim, Geon-Hui;Gwon, Mi-Su;Yu, Ho-Yeon;Son, Yeong-Tae;Pyo, Jeong-Guk;Kim, Tea-Su;Park, Myeon-Ung;Park, Se-Hyeong;Ha, Seong-Do;Park, Ji-Hyung
    • 한국HCI학회:학술대회논문집
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    • 2006.02c
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    • pp.854-858
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    • 2006
  • 디지털화의 가속, 고속 통신 인프라의 확대 등으로 전자, 정보 통신 기기들이 단일 네트워크로 연결되어 영상 및 음향 정보를 서로 공유할 수 있으며, 생활 공간 내에서 실생활의 질 향상을 위한 지능적 정보 서비스와 자연스럽고 편한 내추럴 인터페이스 기술에 의한 지능형 반응 정보 서비스 공간 기술이 중요한 이슈로 등장하고 있다. 본 연구에서는 지능형 반응 공간의 물리적 객체로서 학교, 연구 기관 및 회사 등의 회의실을 선정한다. 그리고, 이를 대상으로 회의 참여자들이 자연스럽고 편리하게 의견 교환, 관련 자료 및 정보 처리를 할 수 있는 시스템 구축을 위한 아키텍처에 대하여 논의한다. 본 연구에서 제안하는 시스템 아키텍처는 회의와 관련된 문서나 회의 내용 등의 정보를 실감 가시화 노드로 추상화되고 메타 정보화함으로써 전체 회의 내용의 파악과 회의 정보에 대한 체계적이고 논리적인 관리를 가능하게 한다. 또한 여러 사람의 공동 작업을 필요로 하는 정보 또는 문서에 대한 동시 편집 기능과 자연스러운 동작에 의한 데이터 조작을 지원하는 실감 워크벤치 및 워크스크린 기술, 정보 핸들링의 다양성과 조작의 편리성을 위한 실감 아이콘에 의하여 자연스럽고 편리한 회의를 가능하게 한다. 그리고, 이러한 요소 기술들이 에이전트에 의해 회의 프로세스 및 요소 기술들의 시스템적 통합을 가능하게 한다.

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A study on the Application of Housing Welfare Service in Self-sufficiency Assistance Program (자활분야의 주거복지서비스 변화와 함의)

  • Seo, Kwang-Guk
    • Land and Housing Review
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    • v.7 no.2
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    • pp.87-95
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    • 2016
  • Housing benefits service that was implemented according to the National Basic Livelihood Security Act in 2002 has been changed with the enactment of "Housing benefits Law"(2014.1.24). Though the service was conducted for 13 years to improve the living environment of recipient households and create self-supporting jobs for low-income, there was a limit to ensure the efficiency due to variations in the administrative act and implementation in local governments. For that reason, the sales account and the profits of self-supporting enterprises and their cooperative in housing welfare sector that played a pivotal role had gone through many ups and downs and that is why the national coalition of self-supporting enterprises that were newly formed are forced to take self-effort and play a leading role for the improvement of future beneficiaries' satisfaction, namely to develop the level of service to keep the decent jobs consistent for low-income while responding institutional policy change and the demands for improving the home-amelioration system. Accordingly, this article has attempted to supplement existing research on housing-benefits service and determine how the field can keep pace with the new institutional environment. As a result, first, Central self-supporting enterprises provide high specialized-quality services to low-income families, second, central self-supporting enterprises induce to transition customized service agencies for improving the quality of residential housing benefits, Third, Housing self-supporting enterprises should correspondence with institutional change through the provision of explicit guidelines in relating to housing-service amelioration, the last, business practical process shall be accompanied by a consistent basis for innovative and procedural standards.

A Data Cleansing Strategy for Improving Data Quality of National R&D Information - Case Study of NTIS (데이터 품질을 고려한 국가R&D정보 데이터베이스의 통합 사례 연구 - NTIS 데이터베이스 통합 사례)

  • Shin, Sung-Ho;Yoon, Young-Jun;Yang, Myung-Suk;Kim, Jin-Man;Shon, Kang-Ryul
    • Journal of the Korea Society of Computer and Information
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    • v.16 no.6
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    • pp.119-130
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    • 2011
  • On the point of data quality management, data quality is influenced by quality policy, quality organization, business process, and business rule. Business rules, guide of data manipulation, have effects on data quality directly. In case of building an integration database among distributed databases, defining business rule is more important because data integration needs to consider heterogeneous structure, code, and data standardization. Also data value has various figures depended on data type, unit, and transcription. Finally, database structure and data value problem have to be solved to improve data quality. For handling them, it is needed to draw database integration model and cleanse data in integrated database. NTIS(stands for National science and Technology Information Service) has an aim to serve users who need all information about national R&D by internet, and for that aim, it has a integrated database which has been made with several database sources. We prove that database integration model and data cleansing are needed to build a successful integrated database through NTIS case study.

Rethinking the Records of the Japan's Korean Colonial Rule and the Post-War Compensation : Focusing on the Dual Decision Making System and the Sources of the Documents (제국의 식민지·점령지 지배와 '전후보상' 기록의 재인식 조선의 식민지지배·보상처리 결재구조와 원본출처를 중심으로)

  • Kim, Kyung-Nam
    • The Korean Journal of Archival Studies
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    • no.39
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    • pp.281-318
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    • 2014
  • This article aims to inquire into the decision making system and the sources of the original documents made by means of it in Imperial Japan, the colonial Chosun, GHQ, and the occupied Japan in terms of the post-war treatments of compensation on the Japanese colonial rules. It deals with them from 1910 to 1952 in the perspective of history and archivistics. This article attempts to establish the foundation on which the perception of the documents made in the Imperial Japan, its colony, and the occupied territory would be widened by placing the colonial rules and the compensation on them into a continuous line. The records of Japan's forced occupation of Korea during 1910-1945, and the original records documenting the decision making process of post-war compensation under GHQ, 1945-1952, have been dispersed in Korea, Japan and the United States. This dispersed preservation was mainly due to the complicated decision-making process among Governor-General of Chosun, the Japanese Imperial government, and the GHQ. It was the top-down styled, dual decision making system, in which the critical policies, personnel, and budget had been decided in Imperial homeland, while their implementations were made in the colonies. As a result, the records documenting the whole process of domination have been preserved dispersedly in Japan and its colonies. In particular, the accounts of not yet paid Korean workers that was forced to mobilize in Japan's colonial periods, which is emerging as the diplomatic conflict between Korea and Japan, had been dealt in the decrees of the Japanese government and policy-making of GHQ. It has already been changed to the problem as 'economic cooperation' from the 'debt'. Also, the critical records for post-war compensation were preserved dispersedly in the United States and Japan under the top-down decision making process of GHQ-Japan. Therefore, the dispersed records of 1910-1952 about the colonial rules by the Imperial Japan and the post-war compensation on them must be re-investigated for the adequate documentation in the context of time and space.

Influence of Grid Cell Size and Flow Routing Algorithm on Soil-Landform Modeling (수치고도모델의 격자크기와 유수흐름 알고리듬의 선택이 토양경관 모델링에 미치는 영향)

  • Park, S.J.;Ruecker, G.R.;Agyare, W.A.;Akramhanov, A.;Kim, D.;Vlek, P.L.G.
    • Journal of the Korean Geographical Society
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    • v.44 no.2
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    • pp.122-145
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    • 2009
  • Terrain parameters calculated from digital elevation models (DEM) have become increasingly important in current spatially distributed models of earth surface processes. This paper investigated how the ability of upslope area for predicting the spatial distribution of soil properties varies depending on the selection of spatial resolutions of DEM and algorithms. Four soil attributes from eight soil-terrain data sets collected from different environments were used. Five different methods of calculating upslope area were first compared for their dependency on different grid sizes of DEM. Multiple flow algorithms produced the highest correlation coefficients for most soil attributes and the lowest variations amongst different DEM resolutions and soil attributes. The high correlation coefficient remained unchanged at resolutions from 15 m to 50 m. Considering decreasing topographical details with increasing grid size, we suggest that the size of 15-30 m may be most suitable for soil-landscape analysis purposes in our study areas.

The comparative study of two extraction methods for ancient DNA: silica suspension method and ultracentrifugal concentrator method (고대 유전자에 대한 두 종류의 DNA 분리 방법의 비교 연구: 실리카 현탁액 방법 및 초원심분리 농축 방법)

  • Lee, Eun-jung;Maixner, Frank;Zink, Albert
    • Analytical Science and Technology
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    • v.31 no.2
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    • pp.65-70
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    • 2018
  • This study compared two methods for preparing ancient DNA (aDNA) for the construction of successful shotgun libraries that may be applied to massive parallel sequencing. For the comparative analysis, the DNA of prehistoric rib samples from Hungary was extracted using either a manually prepared silica suspension or the Amicon Ultracel-15 10K ultracentrifugal device (Millipore). After the extraction of the same amount of bone powder (about 150 mg) from three samples by each method, the amount of extracted double-stranded DNA and the subsequent degree of construction of the shotgun library were analyzed. The Amicon device method was rapid and easier to perform and resulted in an approximately 11-fold higher DNA recovery than that obtained using the silica suspension. The shotgun library constructed using DNA templates prepared by the Amicon device was more successful than that constructed from templates isolated using the silica suspension. The comparative study of these two aDNA extraction methods showed that the Amicon device has the advantages of saving time, process simplicity, and high efficiency.