• Title/Summary/Keyword: ABR-2000

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A Study about Correlations between the Interpretations of Autonomic Bioelectric Response Recorder (ABR-2000) and Diagnosis System of Oriental Medicine (DSOM) / 3D Blood Pressure Pulse Analyzer (3D-MAC) (생체전기자율반응 측정기와 한방진단시스템 및 맥진기 검사 해석의 상관성 연구)

  • Ok, Jin-Yoo;Lee, In-Seon
    • The Journal of Korean Obstetrics and Gynecology
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    • v.31 no.2
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    • pp.31-48
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    • 2018
  • Objectives: This study was performed to observe the correlations between the results of ABR-2000 and DSOM / 3D-MAC to evaluate the feasibility of ABR-2000 as a oriental medical diagnostic criteria. Methods: We studied 547 women visiting ${\bigcirc}{\bigcirc}$ hospital from December 2012 to June 2015. The subjects were categorized in two groups, 'Hypotonia' and 'Non-Hypotonia' by the result of ABR-2000 and assessed the result of DSOM, 3D-MAC for each group. The differences of pulse wave factors by group also studied. Results: 1. There was no significant difference between two groups about the output frequency of pathogenic factors in DSOM while the result showed the higher correlation in Hypotonia group in terms of the companion tendency of pathogenic factors and syndromes formed by the combination of pathogenic factors. 2. The pulse waves of Hypotonia group were mostly slow, weak, tense and stiff than Non-Hypotonia group. Conclusions: 1. In Hypotonia group, yin deficiency (陰虛) factor was frequently accompanied and consumption (虛損) of various organs based on the yin deficiency (陰虛) was observed. It means chronic and severe condition of exhaustion syndrome (虛勞). 2. The result of 3D-MAC also means pathological feature of yin syndrome (陰 證) and consumption (虛損). Besides, lower scores of Body Surface Area (BSA), body weight, and Body Mass Index (BMI) were associated with body weakness (體瘦), a symptom of exhaustion syndrome (虛勞).

Analysis of EFCI and ER Switches Algorithm for ABR Traffic, Using Self-similar pattern and Poisson pattern (Self-similar 패턴과 Poisson 패턴을 사용한 EFCI와 ER 스위치 알고리즘의 ABR 트래픽 분석)

  • 이동철;박기식;김탁근;손준영;김동일;최삼길
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2000.05a
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    • pp.296-300
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    • 2000
  • In previous papers, it proved relevant to using together with EFCI and ER switch for effective ABR traffic managements. It also applied to EFCI and ER switch algorithm, that consider ABR traffic as poisson pattern. However, in recently network environment, it has been proved about traffic pattern, that is similar to self-similar pattern than poisson pattern. In this paper, we will compare previous poisson pattern with self-similar pattern under ATM network.

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A Study on the Clinical Use of 7-zone-diagnostic System(1) Centering around VEGA-DFM 722 and ABR-2000- (7구역진단기의 임상응용에 대한 고찰(1) -VEGA-DFM 722 및 ABR-2000 중심으로-)

  • Song, Beom-Yong
    • Journal of Acupuncture Research
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    • v.23 no.3
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    • pp.231-239
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    • 2006
  • Functional medicine is a system which utilizes certain investigative and treatment methods that are primarily oriented toward the recognition of functional disorder. Functional disorders take place on an energetic plane. This plane is not capturable using our regular investigatory techniques, such as X -ray. ultrasound, computer tomography and laboratory analyses. The 7-zone-diagnostic system(VEGA-DFM 722 and ABR-2000, etc) is a diagnostic device Which applies pulse signals to predetermined bodily locations. Applying alternating positive and negative stress to tissues with positive and negative pulses first manifests itself as negative and positive wave forms. The skin has many functions as an organ. It is the organism's interlace with the outsider world. Hence, the manner in which the skin reacts to external stimuli reflects the current state of the organism(as meridian systems). This system make a diagnosis of functional disorder or some typical organic diseases include stress of the mind or the body, and the energetic situation, reserves. We are known a disorder or disease throw the result chart. This result chart contain disorder flow wave forms and some valuable diagnostic hints (letters ; S, OM, RA, etc). In spite of this 7-zone-diagnostic system that is applied plentifully in the clinical application, there is not a statistics which is suitable. Therefor we must carry out many various research in the future.

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Performance Evaluation for ABR Service Control Algorithm over ATM network (ATM망에서의 ABR 서비스 제어 알고리즘에 관한 성능평가)

  • 박희대;육동철;박승섭
    • Proceedings of the Korea Multimedia Society Conference
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    • 2000.04a
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    • pp.30-35
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    • 2000
  • 초고속통신의 실현과 다양한 멀티미디어정보의 QoS를 향상시키기 위한 ATM 방식은 TCP/IP 통신의 기본적인 전송 매카니즘으로 사용되고 있다. TCP가 ATM 망에서의 ABR서비스를 사용할 때 ABR의 율 기반 제어와 TCP 흐름제어사이에 상호작용이 없는 한, 이런 환경하에서 ATM망의 ABR 트래픽을 좀더 효율적으로 제어하기위해서는 EFCI-ER 스위치 방식의 상호혼용 운영이 불가피하다. 본 논문에서는 이러한 상호혼용을 위하여 EFCI-ER 스위치의 혼용망을 모델로 하여 여러 가지 ER 스위치 알고리즘을 이용하여 대역할당의 공정성 셀손실을 그리고 처리율을 구하였다. 시뮬레이션 결과로써 여러 가지 ER 스위치 알고리즘중에서 망의 형태에 영향을 덜 받으면서 VC(Virtual Channel) 에 공정하게 대역폭을 할당할 수 있는 하나의 알고리즘을 나타내었다.

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The Evaluation of TCP Performance for ABR/UBR Services in ATM Network (ATM 망에서 ABR/UBR 서비스상의 TCP 성능평가)

  • Kim, Myong-Hee;Oh, Jung-Sun;Park, Bong-Ju;Park, Seung-Seob
    • Proceedings of the Korea Information Processing Society Conference
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    • 2000.04a
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    • pp.698-703
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    • 2000
  • 초고속 인터넷의 멀티미디어 서비스 통합에 대한 해결책으로 ATM 네트워크 기술이 널리 사용되고 있다. UBR 상의 TCP에서는 혼잡 시 패킷의 손실을 줄이기 위한 UBR+EPD 방식과 ABR 상의 TCP에서 ABR 율 기반 제어는 셀 손실을 억제하는 높은 성능의 ER 방식이 제안되었다. 그러나 인터넷 서비스의 영역이 지역적으로 점차 확장되어짐에 따라 보다 다양한 QoS가 요구되어진다. 이러한 환경요인을 만족시키기 위해, 본 논문에서는 UBR 서비스상의 TCP의 성능개선을 위해서 거리에 따른 빠른 재전송과 회복의 설정 여부에 대한 성능평가와 ABR 서비스에서는 TCP의 파라미터인 MTU(Maximum Transport Unit)의 크기를 변화시켜 좋은 성능 개선을 가져오는 MTU 크기를 시뮬레이션 결과 통해 나타내었다.

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Efficient Point-to-Multipoint ABR Flow Control Algorithm based on Congestion Depth (폭주 정도의 측정을 통한 효율적인 점대 다중점 ABR 흐름 제어)

  • Chung, Hye-Ryoun;Chung, Tai-Myoung
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.9
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    • pp.3002-3010
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    • 2000
  • ATM forum defined several ATM oriented services such as ABR, VBR, CBR, UBR, and others. Among them, ABR service is considered as one of the most appropriate ones in the LAN environment. ABR controls network traffic by using RM cells according to ATM forum standard. In particular, the point-to-multipoint ABR service in general uses consolidation algorithms to solve feedback implosion at the branch point. Consolidation algorithms alleviate propagation delay and network congestion problem: thus, the efficiency of consolidation algorithm is closely related to the network performance. In this paper, we describe the limitation of existing consolidation algorithms based on thorough analysis, and then propose an algorithm that performs better than the existing algorithms. We show that the proposed algorithm improves network performance through a parametric simulation, In our simulation the performance measure is the cell rate which is controlled by exploiting the congestion depth. We also found that the proposed algorithm not only improves efficiency of network, but also eliminates the consolidation noise.

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An enhanced VS/VD switching algorithm to support fairly ABR service in ATM (ATM 망에서 공정한 ABR 서비스를 제공하는 확장된 VS/VD 스위칭 알고리즘)

  • 양해권;전광탁
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.4 no.2
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    • pp.313-322
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    • 2000
  • The ATM Forum has been focusing on flow control mechanism for ABR traffic management. The goal of this activity is to efficiently manage the leftover network bandwidth and fairly distribute it among contending ABR VC so that communication links can be optimally utilized. ABR traffic is difficult to predict traffic shape because it has bursts and variable behavior. Also it's sensitive to lose but not to delay. This behavior makes difficult to UPC function in network and cause of congestion in switch, thus performance is degraded. To resolve this problem, various flow control mechanism has been worked in the ATM Forum. Especially, the rate-based flow control mechanism for ABR traffic has been standardized in the ATM Forum, Sept. 1994. Thus, various flow control mechanism has been working which likes EFCI, ER, VS/VD. VS/VD control is superior than existed ER control because it isolate different networks from each other. In this paper, we propose an expanded VS/VD flow control algorithm and compare with existed VS/VD flow control algorithm. Simulation result shows that this algorithm improve a problem in aspect of delay and fairness.

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Wastewater Treatment using Air-lift Biofilm Reactor (공기부상 생물막 반응기를 이용한 산업폐수 처리)

  • 최광수;한기백
    • Journal of Environmental Science International
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    • v.9 no.4
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    • pp.351-367
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    • 2000
  • Air-lift biofilm reactor should be an admirable process substituting conventional activated sludge process, because of its small area requirement as well as high volumetric loading capacity and stability against loading and chemical shocks. However most of the past research on the performance of ABR was focused on the sewage treatment. This research studied the applicability of ABR to treat high strength wastewater. A bench-scale ABR was operated to treat high strength synthetic wastewater, tannery wastewater and petrochemical wastewater, and its applicability was conclusive In case of synthetic wastewater, ABR showed good performance in which the substarate removal efficiency was higher that 80% even under short HRT(1.4 hr) and high volumetric loading rate(9.3 kgCODcr/$m^3$.day). When ABR was applied to treat tannery wastewater, it was suggested that the maximum volumetric loading rate and F/M ratio should be 7.7kgCODcr/$m^3$.day, 0.76 $day^{-1}$, respectively. And high substrate removal efficiency over than 90 % was observed with 4,000 mgCODcr/L of petrochemical wastewater. Even though effluent concentration was quite high, ABR should be applicable to treat the high strength wastewater, because of its high loading capacity.

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A Performance Analysis for Bandwidth Allocation Algorithm Using Available Bandwidth Information in ATM Networks (ATM 네트워크에서 가용 대역폭 정보를 이용한 대역폭 할당 알고리즘에 대한 성능분석)

  • 한상옥;박광채
    • The Journal of the Acoustical Society of Korea
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    • v.19 no.1
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    • pp.89-96
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    • 2000
  • ABR service is defined by ATM Forum and ITU for the efficient use of link bandwidth, and 2-pass service policing is proposed for this service. 2-pass service policing is effective by the real-time measurement of the used bandwidth, and this scheme obtains multiplexing gam and control efficiently ABR traffic as dynamically allocating rate by residual bandwidth information. In this study, we propose the real-time bandwidth prediction scheme for ABR traffic control, as using dynamic rate allocation by available bandwidth information. This study can obtain the simple hardware structure by means of as predicting available bandwidth by the total link bandwidth and the sum of transmission rate on the backlogged state connections.

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A Study on Efficient Transmission Rate Control of ABR Traffic in ATM (ATM 망에서 효율적인 ABR 트래픽 전송률 제어에 관한 연구)

  • 정명수
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.25 no.9A
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    • pp.1413-1421
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    • 2000
  • In this paper, we analyze previous flow control algorithm for serving ABR traffic, and then propose the algorithm which calculate fair transmission rate and control efficiently ABR traffic using VS/VD switch which has an effect on WAN environment with long delay. For getting the transmission rate, the proposed algorithm use FMMAR as ER scheme which calculate exactly the fair share. And, in large delay state. we can obtain fair cell sharing by calculating transmission rates which obtained by transmitted queue length information of VD to VS for serve and drain cell in queue Through the computer simulation, we evaluate the performance of proposed algorithm. According to the results, the proposed algorithm shows good performance.

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