• Title/Summary/Keyword: common resource

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Community-based Sustainable Use of Environment : a Case of Jeju-Haenyeo's Common Resource Management (공동체 기반 자연환경의 지속가능한 이용 방안 -제주해녀의 공유자원 관리 사례-)

  • Kim, Kwonho;Kwon, Sangcheol
    • Journal of the Korean association of regional geographers
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    • v.22 no.1
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    • pp.49-63
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    • 2016
  • Environmental degradation and economic bipolarization have become major issues as the aftermath of the globalizing capitalism. Commons have received attention as an alternative to capitalistic use of resources. The most representative is the neo-institutionalist approach where Elinor Ostrom's study summarizes fundamental principles of common resource management. Maria Mies also insists that co-relationship in a community is the most essential to manage common resource successful. In a similar vein, this study attempts to prove that common resource management can create solutions to socioeconomic problems and ways to prevent resource scarcities in the future. Jeju-Haenyeo community is chosen as a successful case to be examined based on the fundamental principles of commons and community. Qualitative surveys have preceded for Jeju-Haenyeo to elaborate and extend the aspects of common resource use and management. This study can bring a positive influence on understanding the Jeju-Haenyeo community and other common resources management institutions.

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Performance evaluations of discrete event system using Petri Nets (페트리 네트를 이용한 이산 사건 시스템의 성능 분석)

  • 최정환;고인선
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.1241-1244
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    • 1996
  • This paper present a performance evaluation method for Timed Place Petri Nets modeled by Live-and-Bounded Circuits (LB-circuits) through a bottom-up approach. The method can handle the case for the nets having common resources(CR). The target system is divided into the sub-systems by disconnecting the common Transition-Transition-Path(TTP) or Place-Place-Path (PPP) between sub-systems. The common PPP pattern is classified into Parallel Common Resource (PCR) and Sequential Common Resource (SCR) in detail for handling common resources. We evaluate the performance of each divided sub-system, and calculate the sub-systems affect on the performance of the whole system. The facts are generalized as a theorem. The developed theorem are applied into the performance evaluation of an automated assembly system shown in an example. All the results are verified by simulation.

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Autilization and management of common octopus (Octopus minor) resources in the Tando bay on the southwest coast of Korea (한국 탄도만 낙지자원의 이용과 관리)

  • Oh, Taeg-Yun;Kim, Joo-Il;Seo, Young-Il;Lee, Sun-Kil;Cho, Mun-Seung;Joo, Hyun;Jeong, Sun-Beom
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.47 no.1
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    • pp.18-26
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    • 2011
  • This study is to contribute to income growth of fishermen by the common octopus fishery characterized in the Tando Bay on the southwest coast of Korea. This area is engaged in Longline fishing (301 persons), Shovel fishing (196 persons), Trap fishing (14 persons) and Torch light fishing (40 persons) in 2008. Population who is joined in the spring becomes main fishery target population of longline fishery in the fall because entering fishing ground in August, and is joined in the fall becomes main fishery target population of longline fishery in the spring because entering fishing ground in December. Average size of common octopus examined by longline 6.26cm, 5.82cm for Shovel fishing, 8.09cm for trap, and expressed big difference by fishery. It needs necessary various kinds of Octopus resource management actions and methods in continuous use. Specially, Fishing force increased by fishing automation system, so the reduction of fishing force is needed to increased by fishing force. Government support and fishermen's self-conscious of resource management is needed.

Heuristic Task Allocation for Multiprocessor Controller Systems Considering Shared Resource Access

  • Seon, Ryou-Myung;Hyun, Kwon-Wook
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.140.3-140
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    • 2001
  • This paper analyzes a blocking that is due to shared resource in multiprocessor system. A proposed analysis for shared resource suggests a scalable and amendable scheduling method about task allocation. An equation of shared resource blocking is proposed by a throughput at common bus and a ratio of throughput during time period, it is included a parameter of tasks scheduling. Using this equation, a new guideline for task allocation of multiprocessor is presented. Finally, in proposed system a model simulations for the proposed blocking model is given by a deterministic ratio of shared resource.

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A Political-Economic Study on Fisheries Resource Rent and Rent-Seeking Behaviors (어업자원 지대 및 지대추구행위에 관한 정치경제학적 연구)

  • Park, Seong-Kwae
    • Journal of Fisheries and Marine Sciences Education
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    • v.17 no.3
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    • pp.340-360
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    • 2005
  • Fishery resource rents(i.e. windfall gains or excess profit), which tend to lead a variety of important economic, social, political problems, have been a fundamental cause of unbalance between fishery resource use and management. Thus, there may exist several sorts of optimal level of resource utilization such as economic maximum sustainable yield, biological maximum sustainable yield, social optimum production, socio-political optimum yield, etc. The fishery resource use level seems to a large extent to be determined by the characteristics of fishermen's rent seeking structure. As well known, fishery resources as common properties have a characteristic of being difficult to establish private property rights. Therefore, their use rights are controlled by the permit and/or the license system. As a result, absolute or differential rents are formed by the changes in institutional arrangements. Rent problems are often transformed into serious socio-political issues when the rent in a given industry is much higher to a socially unacceptable extent than the average of other industries. However, individual fishermen or fishermen's groups tend to behave aggressively to change the existing fishery institutions towards maximizing fishery rents. These rent-seeking behaviors often tend to nullify fishery management schemes. The larger is the relative rent difference between fisheries and other industries, the more aggressive tend to be the rent-seeking behaviors in fisheries.

Sequential Assessment in Contests among Common Freshwater Goby, Rhinogobius brunneus(Pisces, Gobiidae)

  • Suk, Ho-Young;Choe, Jae-C.
    • Animal cells and systems
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    • v.5 no.4
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    • pp.313-317
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    • 2001
  • The sequential assessment model describes a fight between two conspecific as an ongoing statistical sampling process, which makes it possible to predict fight length or repetition number of a behavioral element depending on relative RHP (resource holding potential: e.g. weight or fighting ability). We staged contests between males of common freshwater gobies to test some predictions of this model. Fights proceeded in a consistent sequence of phases. Most contests began with two contestants adopting lateral display, and then escalated to intense physical contacts. The length of contests was negatively correlated with weight difference between the contestants. The duration of complete phases was, however, independent of weight, and the prior information gained during complete phases did not appear to affect subsequent phases of the fight. Our results show that the contests of common freshwater gobies are well predicted by the sequential assessment model.

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Comparative Spawning Ecology of Daggertooth Pike Conger Muraenesox cinereus and Common Pike Conger M. bagio in the South Sea of Korea (갯장어(Muraenesox cinereus)와 갈창갯장어(M. bagio)의 산란생태 비교)

  • Koh, Eun Hye;Kwon, Dae-Hyeon;Park, Jeong-Ho;Kim, Yeonghye
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.53 no.1
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    • pp.98-102
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    • 2020
  • We examined the comparative spawning ecology of daggertooth pike conger Mureanesox cinereus and common pike conger M. bagio in the South Sea of Korea from May 2018 to December 2019. In the South Sea of Korea, the mean total length (TL) of M. cinereus was significantly smaller than that of M. bagio. The sex ratios of both species were skewed toward females. The spawning period of M. cinereus was from June to October, while the spawning period of M. bagio was from August to October. The lengths at 50%, 75%, and 97.5% sexual maturity of M. cinereus females were estimated as 54.6 cm, 60.4 cm, and 74.1 cm TL, respectively. It was not possible to estimate lengths at sexual maturity for M. bagio in the South Sea of Korea due to the absence of immature stages.

Resource Evaluation Skill to Set a Development Direction Rural Village (농촌마을 개발방향 설정을 위한 자원 평가기법 연구)

  • Park, Chang-Won;Kwon, Hueck-Jung;Joo, Kyung-Ro
    • Journal of Korean Society of Rural Planning
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    • v.10 no.1 s.22
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    • pp.9-17
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    • 2004
  • For the problems in executing rural development, recent recognitions are that discovery, preservation, and utilization of area-unique resource are unsatisfactory, that participation of local residents was neglected, and that approach to gradual refurbishment of houses and common space of town in consideration of existing spatial pattern of the town was not adequate. Especially, neglect for exact investigation, analysis and evaluation on rural local resources is bringing about social problems such as mass production of uniform rural area and loss of local identity. In this study, rural resources were listed and resource evaluation items was designed in order to establish development direction of rural village. According to these results, for the efficient and reasonable drive of the resource evaluation system, following items are required; A premise of local development by participation of local people, Development of diversely appliable resource evaluation clauses, Establishment of development type in connection with resource evaluation clauses, Systematic management of local resource through spreading DB resource. This research was loused on unearthing direction development of rural village and theme. However, what should be reconsidered through continuous study is that resource evaluation clauses are somewhat general and not concretely illustrated. Therefore establishment of characterized development is expected through clarifying local identity and presenting direction of local development, with the importance of resource and systematic analysis in planning on rural village in the future.

Acoustic Target Strength of Live Japanese Common Squid(Todarodes pacifica) for Applying Biomass Estimation (살오징어 (Todarodes pacifica)의 음향 반사강도 측정)

  • KANG Donhyug;HWANG Doojin;MUKAI Tohru;IIDA KohjI;LEE Kyounghoon
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.37 no.4
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    • pp.345-353
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    • 2004
  • Target strength (TS) of Japanese common squids (Todarodes pacificus) were measured using 38 and 120 kHz split beam scientific echosounders under the live condition. For the TS measurement of an individual, a total of 3 squids (mantle length (ML): 22.8, 25, and 27 cm) were used using small fishhook method, whereas for measurement of swimming angle, a total of 8 squids (ML: 21-27 cm) were used under live condition, confined with net cage with 2 m diameter At the same time, two underwater video cameras enabled continuous monitoring of squid behavior. Considering normal behavior, the mean TS at 38 and 120 kHz varied from -48.6 to -45.9 dB, and from -46.5 to -44.6 dB, respectively In both frequencies, mean TS at 120 kHz is relatively higher than that of 38 kHz, approximately 1.3-2.5 dB. From free living condition, the mean swimming angle of the squlds was $-24^{\circ}$. The results of the measurement will be provided basic information for conducting acoustic surveys of the squid.

Efficient Network Selection and Vertical Handover Algorithms for Common Radio Resource Management of Heterogeneous Wireless Networks (이기종 무선망의 통합 자원관리를 위한 효율적인 네트워크 선택과 버티컬 핸드오버 알고리즘)

  • Lee, Kyung-Won;Shin, Choong-Yong;Cho, Jin-Sung
    • Journal of KIISE:Information Networking
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    • v.36 no.3
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    • pp.163-172
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    • 2009
  • Various terminals equipped with multiple interfaces may receive services from wireless networks when they pass through the overlaid heterogeneous networks, and thus the vertical handovers across the wireless networks increases, which will become a big problem in the network resource management. This problem can be efficiently solved by common radio resource management (CRRM). In this paper, we propose two operation algorithms based on network selection jointly with vertical handover as the key CRRM strategies. When a new user tries to get services, the CRRM can choose the best target network according to the proposed Integrated Network Selection Algorithm. When the network cannot satisfy the request from the new users, the proposed Integrated Vertical Handover Algorithm moves existing users to neighborhood networks to accommodate new users. The performance of the proposed algorithms has been validated through extensive simulations.