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효과적인 분산 방재자원 관리 방안 (Efficient Methods for the Distributed Disaster Prevention Resources)

  • 이창열
    • 한국재난정보학회 논문집
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    • 제7권4호
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    • pp.294-304
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    • 2011
  • 방재자원은 재난 발생시 투입하는 인력, 물자, 장비, 시설 자원을 의미한다. 물자, 장비 자원은 평상시 내부적으로 관리되는 자원으로 신속하고, 적합한 자원을 투입하여 재난을 최소화하여야 한다. 그렇지만 현재 방재자원 관리는 시군구의 재난관리시스템과 중앙의 재난관리시스템으로 이원화되어 있으며, 정보의 갱신이 실시간으로 되어있지 않아서 적시에 적합한 자원을 투입하기에 어려운 상태이다. 본 연구에서는 시군구에 분산된 방재차원에 대한 효과적인 관리를 통하여 가시성을 확보함으로써 적시에 적합한 자원을 투입할 수 있는 모델을 제시하고 있다. 특히 적합한 자원을 신속하게 파악할 수 있게 방재자원을 분류하고, RFID 표준에 기반한 방재자원의 ID와 메타데이터 정보를 제시하고, 이를 기반으로 실시간으로 방재 차원을 관리할 수 있는 모텔을 제시하였다.

A Dual-Population Memetic Algorithm for Minimizing Total Cost of Multi-Mode Resource-Constrained Project Scheduling

  • Chen, Zhi-Jie;Chyu, Chiuh-Cheng
    • Industrial Engineering and Management Systems
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    • 제9권2호
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    • pp.70-79
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    • 2010
  • Makespan and cost minimization are two important factors in project investment. This paper considers a multi-mode resource-constrained project scheduling problem with the objective of minimizing costs, subject to a deadline constraint. A number of studies have focused on minimizing makespan or resource availability cost with a specified deadline. This problem assumes a fixed cost for the availability of each renewable resource per period, and the project cost to be minimized is the sum of the variable cost associated with the execution mode of each activity. The presented memetic algorithm (MA) consists of three features: (1) a truncated branch and bound heuristic that serves as effective preprocessing in forming the initial population; (2) a strategy that maintains two populations, which respectively store deadline-feasible and infeasible solutions, enabling the MA to explore quality solutions in a broader resource-feasible space; (3) a repair-and-improvement local search scheme that refines each offspring and updates the two populations. The MA is tested via ProGen generated instances with problem sizes of 18, 20, and 30. The experimental results indicate that the MA performs exceptionally well in both effectiveness and efficiency using the optimal solutions or the current best solutions for the comparison standard.

Effective Task Scheduling and Dynamic Resource Optimization based on Heuristic Algorithms in Cloud Computing Environment

  • NZanywayingoma, Frederic;Yang, Yang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제11권12호
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    • pp.5780-5802
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    • 2017
  • Cloud computing system consists of distributed resources in a dynamic and decentralized environment. Therefore, using cloud computing resources efficiently and getting the maximum profits are still challenging problems to the cloud service providers and cloud service users. It is important to provide the efficient scheduling. To schedule cloud resources, numerous heuristic algorithms such as Particle Swarm Optimization (PSO), Genetic Algorithm (GA), Ant Colony Optimization (ACO), Cuckoo Search (CS) algorithms have been adopted. The paper proposes a Modified Particle Swarm Optimization (MPSO) algorithm to solve the above mentioned issues. We first formulate an optimization problem and propose a Modified PSO optimization technique. The performance of MPSO was evaluated against PSO, and GA. Our experimental results show that the proposed MPSO minimizes the task execution time, and maximizes the resource utilization rate.

Screening of aldose reductase inhibitory activities of Korean folk plants in Chungcheong Province

  • Lee, Dong Gu;Lee, Ki Ho;Choi, Kyung;Ku, Jajung;Park, Kwang-Woo;Cho, Eun Ju;Lee, Sanghyun
    • 농업과학연구
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    • 제40권1호
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    • pp.47-51
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    • 2013
  • To search for the aldose reductase (AR) inhibitors from Korean folk plants, the inhibition of rat lens AR in vitro using the methanol (MeOH) extracts from Korean folk plants in Chungcheong Province was investigated. Among Korean folk plants tested, the MeOH extract of Persicaria longiseta showed highest inhibition of AR ($IC_{50}$ value, $5.14{\mu}g/ml$). Consequently, P. longiseta has a possibility of new natural resources for the development of AR inhibitor for the prevention of diabetic complications.

Isolation and Characterization of a Type II Peroxiredoxin Gene from Panax ginseng C. A. Meyer

  • Kim, Yu-Jin;Lee, Jung-Hye;Lee, Ok-Ran;Shim, Ju-Sun;Jung, Seok-Kyu;Son, Na-Ri;Kim, Ju-Han;Kim, Se-Young;Yang, Deok-Chun
    • Journal of Ginseng Research
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    • 제34권4호
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    • pp.296-303
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    • 2010
  • A peroxiredoxin cDNA (PgPrx) was isolated and characterized from the leaves of Panax ginseng. The cDNA is 716 nucleotides long and has an open reading frame of 489 base pairs with a deduced amino acid sequence of 162 residues. The calculated molecular mass of the mature protein is approximately 17.4 kDa with a predicted isoelectric point of 5.37. A GenBank BlastX search revealed that the deduced amino acid sequence of PgPrx shares a high degree homology with type II peroxiredoxin (Prx) proteins in other plants. The PgPrx gene was highly expressed in leaves, and expressed at a low level in the stem. To analyze the gene expression of PgPrx in response to various abiotic stresses, we utilized real-time quantitative RT-PCR. Our results reveal that PgPrx expression is induced by ultraviolet irradiation, low temperature, and salt. The induction of PgPrx in response to abiotic stimuli suggests that ginseng Prx may function to protect the host against environmental stresses.

Isolation of Sesquiterpene Synthase Homolog from Panax ginseng C.A. Meyer

  • Khorolragchaa, Altanzul;Parvin, Shohana;Shim, Ju-Sun;Kim, Yu-Jin;Lee, Ok-Ran;In, Jun-Gyo;Kim, Yeon-Ju;Kim, Se-Young;Yang, Deok-Chun
    • Journal of Ginseng Research
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    • 제34권1호
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    • pp.17-22
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    • 2010
  • Sesquiterpenes are found naturally in plants and insects as defensive agents or pheromones. They are produced in the cytosolic acetate/mevalonate pathway for isoprenoid biosynthesis. The inducible sesquiterpene synthases (STS), which are responsible for the transformation of the precursor farnesyl diphosphate, appear to generate very few olefinic products that are converted to biologically active metabolites. In this study, we isolated the STS gene from Panax ginseng C.A. Meyer, designated PgSTS, and investigated the correlation between its expression and various abiotic stresses using real-time PCR. PgSTS cDNA was observed to be 1,883 nucleotides long with an open reading frame of 1,707 bp, encoding a protein of 568 amino acids. The molecular mass of the mature protein was determined to be 65.5 kDa, with a predicted isoelectric point of 5.98. A GenBank BlastX search revealed the deduced amino acid sequence of PgSTS to be homologous to STS from other plants, with the highest similarity to an STS from Lycopersicon hirsutum (55% identity, 51% similarity). Real-time PCR analysis showed that different abiotic stresses triggered significant induction of PgSTS expression at different time points.

A k-Tree-Based Resource (CU/PE) Allocation for Reconfigurable MSIMD/MIMD Multi-Dimensional Mesh-Connected Architectures

  • Srisawat, Jeeraporn;Surakampontorn, Wanlop;Atexandridis, Kikitas A.
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2002년도 ITC-CSCC -1
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    • pp.58-61
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    • 2002
  • In this paper, we present a new generalized k-Tree-based (CU/PE) allocation model to perform dynamic resource (CU/PE) allocation/deallocation decision for the reconfigurable MSIMD/MIMD multi-dimensional (k-D) mesh-connected architectures. Those reconfigurable multi-SIMD/MIMD systems allow dynamic modes of executing tasks, which are SIMD and MIMD. The MIMD task requires only the free sub-system; however the SIMD task needs not only the free sub-system but also the corresponding free CU. In our new k-Tree-based (CU/PE) allocation model, we introduce two best-fit heuristics for the CU allocation decision: 1) the CU depth first search (CU-DFS) in O(kN$_{f}$ ) time and 2) the CU adjacent search (CU-AS) in O(k2$^{k}$ ) time. By the simulation study, the system performance of these two CU allocation strategies was also investigated. Our simulation results showed that the CU-AS and CU-DFS strategies performed the same system performance when applied for the reconfigurable MSIMD/MIMD 2-D and 3-D mesh-connected architectures.

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ESE 데이터베이스 내의 삭제된 레코드 복구 기법 (A recovery method for deleted records in the ESE Database)

  • 김정현;최종현;이상진
    • 정보보호학회논문지
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    • 제25권5호
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    • pp.1143-1151
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    • 2015
  • Extensible Storage Engine (ESE) 데이터베이스는 Microsoft가 개발한 데이터베이스로 Internet Explorer, Spartan과 같은 웹브라우저와 Windows Search, System Resource Usage Monitor와 같은 윈도우 시스템에서 주요하게 사용된다. 기존의 ESE 데이터베이스 뷰어는 잘못된 값을 출력할 수 있고 수집 환경과 파일의 상태에 따라 파일을 읽지 못하는 경우가 존재한다. 또한 삭제된 레코드 복구 도구는 일부 프로그램에 한정적이고 모든 테이블을 복구하지 못한다. 본 논문에서는 ESE 데이터베이스 구조를 분석하여 개별 데이터베이스가 아닌 범용적으로 적용할 수 있는 삭제된 레코드의 복구 기법을 제안하며 이를 도구로 구현하여 실험한 결과를 제시한다.

온라인자료의 기계적 품질계수 측정을 통한 컨스펙터스 운영모형에 관한 연구 (A Study on an Operating Model of Conspectus for Online Resources based on Mechanistic Quality Factor)

  • 우진영;류성열
    • 한국도서관정보학회지
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    • 제43권4호
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    • pp.183-199
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    • 2012
  • 본 연구는 기계적 품질계수 개념을 도입하여 온라인자료에 적합한 컨스펙터스 운영모형을 개발하기 위한 것이다. 온라인자료의 주제별 소장율, 이용율, 검색율 등 자료활용행태에 관한 정보를 토대로 주제별 기계적 품질계수를 산출한 후 이를 기존의 컨스펙터스의 주제별 집서수준에 반영하는 방식으로 운영할 것을 제안하였다. 그 결과 이용율이 높은 기술과학과 검색율이 높은 역사와 사회과학 등 주제의 집서수준을 대폭 상향조정하고 여타주제들은 현행유지 또는 하향조정 되어야 하는 것으로 나타났다.

모티프 자원 통합을 이용한 단백질 모티프 예측 시스템 구현 (Implementation of Protein Motif Prediction System Using integrated Motif Resources)

  • 이범주;최은선;류근호
    • 정보처리학회논문지D
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    • 제10D권4호
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    • pp.679-688
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    • 2003
  • 지놈 서열 시퀀싱을 통해 생성되는 원시 데이터에 대한 단백질 기능 및 구조 예측에 사용되는 모티프 데이터베이스들은 원시 데이터들의 폭발적인 성장추세에 맞추어 그 사용빈도가 증가하고 있다. 그러나 이러한 모티프 데이터베이스들은 독자적으로 개발, 발전하여왔고 웹 기반 cross-reference를 이용한 논리적 통합을 추진하여왔기 때문에 이질적인 검색 결과와 복잡한 질의 처리 문제, 중복된 데이터베이스 엔트리 핸들링 문제 등을 갖고 있다. 따라서, 이 논문에서는 이런 문제점들을 개선하기 위하여 물리적인 모티프 자원 통합을 제안하고, 패밀리 기반 단백질 예측 메소드들에 대한 통합 검색 방법을 기술한다. 끝으로 모티프 통합 데이터베이스 구축 및 단백질 모티프 예측 시스템 구현을 통한 결과를 평가한다.