• Title/Summary/Keyword: network recovery

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Phenomenological Study on Lived Experience of Recovering alcoholics in a Therapeutic Community for Homeless -Focusing the experiences of recovering alcoholics who have completed rehabilitation TC program in Vision Training Center for homeless- (노숙을 경험한 알코올 의존자의 치료공동체를 통한 회복체험 연구 -노숙인 시설인 비전트레이닝센터의 치료공동체 프로그램을 수료한 후 회복중인 자를 중심으로-)

  • Kim, Sun-Min;Oh, Gi-Chul;Kang, Hyang-Sook
    • Korean Journal of Social Welfare Studies
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    • v.44 no.1
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    • pp.5-31
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    • 2013
  • This study is phenomenological qualitative research about lived experience of recovering alcoholic homeless who had completed Therapeutic Community program. The meaning which is revealed through this study is as in the followed. First, Moving to recovering space. In Therapeutic Community, they have a turning point for new life and new connection with people who watch him carefully. Second, Physical recovery. They are no more lying down on the street. Analogy of Standing can be viewed as being most active in recovery. Third, Positioning on time flow. The recovering of time is represented by accepting past and present as well as looking ahead into the future. Fourth, Settling into network of a relation. They tried to reconnect with society by network of a relation. Their social place is located in a network, not a position. From this present study, the social work implications for the alcoholic homeless are deducted.

Performance Improvement of TCP SACK using Retransmission Fiailure Recovery in Wireless Networks (무선 네트워크에서 재전송 손실 복구를 통한 TCP SACK 성능 향상 방안)

  • Park, Cun-Young;Kim, Beom-Joon;Kim, Dong-Min;Han, Je-Chan;Lee, Jai-Yong
    • Journal of KIISE:Information Networking
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    • v.32 no.3
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    • pp.382-390
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    • 2005
  • As today's networks evolve towards an If-based integrated network, the role of transmission control protocol(TCP) has been increasing as well. As a well-known issue, the performance of TCP is affected by its loss recovery mechanism that is comprised of two algorithms; fast retransmit and fast recovery. Although retransmission timeout(RTO) caused by multiple packet losses can be avoided by using selective acknowledgement(SACK) option, RTO cannot be avoided if a retransmitted packet is lost. Therefore, we propose a simple modification to make it possible for a TCP sender using SACK option to detect a lost retransmission. In order to evaluate the proposed algorithm, simulations have been performed for two scenarios where packet losses are random and correlated. Simulation results show that the proposed algorithm can improve TCP performance significantly.

Design of the Recovery Scheme for the Bidirectional Synchronization System on Mobile Environments (모바일 환경에서 양방향 동기화 시스템을 위한 회복 기법의 설계)

  • Kim, Dong-Hyun;Kim, Hong-Ki;Cho, Dae-Soo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.5
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    • pp.1105-1110
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    • 2011
  • It is possible to synchronize the spatio-temporal data with a server using a wireless network. These data has the benefit to be up-to-date and able to service to the user efficiently. However, the mobile devices or the wireless network are very vulnerable to various hard or soft failures. If an failure occurs during a synchronization process, the spatio-temporal data which is synchronizing could be inconsistent state. In this paper, we propose the recovery scheme to solve the problem caused by the errors which occur during the synchronization on mobile environments. The proposed scheme writes the log records for the synchronization process into the both local storages of the server and the mobile client. When the errors arise, the data which are synchronizing are recovered using the written log records. Also, we design and implement the proposed recovery scheme on the synchronization system.

Network Security Service for Next Generation Network Environment (차세대 네트워크 보안 서비스)

  • 김환국;정연서;서동일
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.05a
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    • pp.800-803
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    • 2003
  • Recently the number of internet users has very fast increased, and the number of intrusions has also increased very much. Hence, Security production developed to prevent systems and network from being hacked and intruded. However, hacking and virus getting on automation, intelligence, decentralization, large-scale and concealment. Therefore, Network security service necessary to deal with such threat. In this paper, we investigate about new network security services of trace-back, recovery, network vulnerability analysis, attack prediction and consideration for these services.

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On-box Container-based Switch Configuration Automation Technology to Minimize Network Interruption (네트워크 중단 최소화를 위한 On-Box 컨테이너 기반 스위치 설정 자동화 기술)

  • Gyoung-Hwan Yoo;Taehong Kim
    • IEMEK Journal of Embedded Systems and Applications
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    • v.19 no.3
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    • pp.141-149
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    • 2024
  • This paper proposes a configuration automation technique to minimize service interruption time in the event of a corporate network access layer switch failure. The automation is achieved without the need for a separate external system, as the network setting information is stored in a container inside the switch, enabling rapid recovery without requiring separate storage. This approach ensures the continuity of network services and demonstrates the efficiency of configuration automation. The proposed technique improves corporate network stability by providing a quick response in the event of a failure.

Community Recovery Considering the Spatial Characteristics of Shanty Towns (저소득층 주거지 공간적 특성을 고려한 공동체 회복)

  • Shin, Haeng-Woo;Kim, Young-Ook
    • Land and Housing Review
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    • v.7 no.2
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    • pp.97-102
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    • 2016
  • It has recently become a major concern for us contemplating could regain the advantage with a 'village' concept of the traditional in a modern city. The village community recovery project which is one of the flagship projects of seoul is being actively conducted with the aim to form a network between residents and have even appeared positive results. Among the many efforts to recover community, spatial approach may be one solution. To secure a space for people to easily access, may bring about a small but significant effect. Community Space with high visual accessibility has a large effect as a space of communication and exchange of residents. Socio-economic efforts to restore the community has a limit. In some cases of poor village, Spatial relationship network was found to be a large influence on the formation of the socio-economic relations network. It is important to understand how people lived and formed a relationship within the space of traditional forms and space disappeared from rapid social change process. The community recovery efforts are needed through research and experiments for the residential network can reflect the spatial characteristics.

Deep Neural Architecture for Recovering Dropped Pronouns in Korean

  • Jung, Sangkeun;Lee, Changki
    • ETRI Journal
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    • v.40 no.2
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    • pp.257-265
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    • 2018
  • Pronouns are frequently dropped in Korean sentences, especially in text messages in the mobile phone environment. Restoring dropped pronouns can be a beneficial preprocessing task for machine translation, information extraction, spoken dialog systems, and many other applications. In this work, we address the problem of dropped pronoun recovery by resolving two simultaneous subtasks: detecting zero-pronoun sentences and determining the type of dropped pronouns. The problems are statistically modeled by encoding the sentence and classifying types of dropped pronouns using a recurrent neural network (RNN) architecture. Various RNN-based encoding architectures were investigated, and the stacked RNN was shown to be the best model for Korean zero-pronoun recovery. The proposed method does not require any manual features to be implemented; nevertheless, it shows good performance.

QoS Guarantee Framework with QoS Recovery Mechanism in Next Generation OVPN (차세대 OVPN에서 QoS Recovery 메커니즘 제공을 통한 QoS 보장 프레임워크)

  • 윤미라;정창현;김성운
    • Proceedings of the Korean Information Science Society Conference
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    • 2003.10c
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    • pp.4-6
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    • 2003
  • IP망을 활용한 VPN(Virtual Private Network)에서의 QoS 보장 메커니즘과 광대역폭 제공에 대한 해결책으로 차세대 광 인터넷을 통한 OVPN(Optical VPN) 기술이 제시되고 있다. 차세대 광 인터넷의 구현이 IP/GMPLS(Generalized Multi­Protocol Label Switching) over DWDM(Dense Wavelength Division Multiplexing) 프로토콜 프레임워크로 표준화되고 있는 현실에 비추어, IP/GMPLS over DWDM 백본망을 통한 OVPN은 차세대 가상사설망으로써 멀티미디어 서비스 제공을 위한 최적의 방안이다. 이러한 차세대 멀티미디어 서비스 제공을 위한 OVPN에서는 서비스 클래스별로 차등화된 광 QoS 제공 및 보장 기술이 절실히 요구되고 있으므로, 본 논문에서는 차등화된 광 QoS 서비스(DOQS:Differetiated Optical QoS Service)를 제공하는 OVPN모델을 제시하고 제안된 DOQS­OVPN 모델의 QoS 지원 광경로상에서의 QoS Failure에 대한 서비스별 차등화된 Recovery 능력을 갖는 QoS 보장 프로토콜 프레임워크를 제안한다.

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Fault-Tolerant Algorithm using Multi-Connectivity of Communication Networks (통신망의 다중연결성을 이용한 결함허용 알고리즘)

  • Moon, Yun-Ho;Kim, Byung-Ki
    • Journal of KIISE:Computer Systems and Theory
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    • v.27 no.1
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    • pp.53-60
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    • 2000
  • The purpose of this paper is to propose new recovery algorithm for case of a system element raises communication obstacle due to faults in networks, Also we are simulate the algorithm using adjacency matrix. We recover one faulty node per each excution of proposed algorithm so that we can be reconstruct the faulty system gradually to communicatable network. For that, this paper propose a new recovery algorithm named MATRECO which connect the recovery process is simulated by use of adjacency matrix.

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Neural Plasticity after Brain Injury (뇌 손상 후 신경 가소성)

  • Kwon, Young-Shil;Kim, Jin-Sang
    • The Journal of Korean Physical Therapy
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    • v.13 no.3
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    • pp.791-797
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    • 2001
  • After brain injury, patients show a wide range in the degree of recovery. By a variety of mechanisms, the human brain is constantly undergoing plastic changes. Spontaneous recovery from brain injury in the chronic stage omes about because of plasticity. The brain regions are altered. resulting in functionally modified cortical network. This review cnsidered the neural plasticity from cellular and molecular mechanisms of synapse formation to behavioural recovery from brain injury in elderly humans. The stimuli required to elicit plasticity are thought to be activity-dependent elements. especially exercise and learning. Knowledge about the physiology of brain plasticity has led to the development of methods for rehabilitation.

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