• Title/Summary/Keyword: port management

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Real-time Classification of Internet Application Traffic using a Hierarchical Multi-class SVM

  • Yu, Jae-Hak;Lee, Han-Sung;Im, Young-Hee;Kim, Myung-Sup;Park, Dai-Hee
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.4 no.5
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    • pp.859-876
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    • 2010
  • In this paper, we propose a hierarchical application traffic classification system as an alternative means to overcome the limitations of the port number and payload based methodologies, which are traditionally considered traffic classification methods. The proposed system is a new classification model that hierarchically combines a binary classifier SVM and Support Vector Data Descriptions (SVDDs). The proposed system selects an optimal attribute subset from the bi-directional traffic flows generated by our traffic analysis system (KU-MON) that enables real-time collection and analysis of campus traffic. The system is composed of three layers: The first layer is a binary classifier SVM that performs rapid classification between P2P and non-P2P traffic. The second layer classifies P2P traffic into file-sharing, messenger and TV, based on three SVDDs. The third layer performs specialized classification of all individual application traffic types. Since the proposed system enables both coarse- and fine-grained classification, it can guarantee efficient resource management, such as a stable network environment, seamless bandwidth guarantee and appropriate QoS. Moreover, even when a new application emerges, it can be easily adapted for incremental updating and scaling. Only additional training for the new part of the application traffic is needed instead of retraining the entire system. The performance of the proposed system is validated via experiments which confirm that its recall and precision measures are satisfactory.

Hardware Synthesis From Coarse-Grained Dataflow Specification For Fast HW/SW Cosynthesis (빠른 하드웨어/소프트웨어 통합합성을 위한 데이타플로우 명세로부터의 하드웨어 합성)

  • Jung, Hyun-Uk;Ha, Soon-Hoi
    • Journal of KIISE:Computer Systems and Theory
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    • v.32 no.5
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    • pp.232-242
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    • 2005
  • This paper concerns automatic hardware synthesis from data flow graph (DFG) specification for fast HW/SW cosynthesis. A node in BFG represents a coarse grain block such as FIR and DCT and a port in a block may consume multiple data samples per invocation, which distinguishes our approach from behavioral synthesis and complicates the problem. In the presented design methodology, a dataflow graph with specified algorithm can be mapped to various hardware structures according to the resource allocation and schedule information. This simplifies the management of the area/performance tradeoff in hardware design and widens the design space of hardware implementation of a dataflow graph compared with the previous approaches. Through experiments with some examples, the usefulness of the proposed technique is demonstrated.

Estimation of Reservoir Sediment Deposition Using Two Dimensional Model (2차원 모형을 이용한 저수지 퇴사량 예측)

  • Lee, Wonho;Kim, Jingeuk
    • Journal of the Korean GEO-environmental Society
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    • v.9 no.5
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    • pp.21-27
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    • 2008
  • The Sediment deposits in rivers and reservoirs are major components interfering with the useful function of the reservoirs, and clogging the inlet port at water intakes in rivers and erosion of pump impellers. Therefore, an accurate estimation method of sediment deposition is requisite to the efficient water resources investigation, planning and management. The objective of this paper is to forecast of reservoir sediment deposition using two dimensional model (SMS) to UnMun reservoir in GyeongSangBukDo. The RUSLE model showed that reservoirs volume was decreased $2,084.09{\times}10^6m^3$ after 50 years and $2,196.65{\times}10^6m^3$ after 100 years, which is plan flood level elevation (EL.152.12 m) reservoir. The two dimensional model showed that reservoirs volume was decreased $2,227.41{\times}10^6m^3$ after 50 years and $2,121.47{\times}10^6m^3$ after 100 years, which is plan flood level elevation (EL.152.12 m) reservoir. The results of this application showed that the use of two dimensional model was very effective for the estimation sediment deposits throughout the reservoir.

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An Educational Simulator for Operational Strategies of the Block Train Services (블록 트레인 서비스 운영 전략 학습 시뮬레이터 개발)

  • Jung, Jae Un;Kim, Hyun Soo
    • Journal of Digital Convergence
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    • v.10 no.11
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    • pp.197-202
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    • 2012
  • Block Train Services(BTS) are actively studied in many countries for higher productivity and eco-friendly systems of inland freight distribution. However it is difficult for an ordinary student or researcher to approach for understanding and studying BTS because rail transport is operated monopolistically by Korea government and most freight information in each company belongs to its business secret due to the industrial characteristics. For such reasons, the study aimed to develop a BTS simulation model that it supports understanding and strategic decision required for BT operation. To build the result, expert depth-interviews were conducted with analysis of relative references through the domestic representative BT operating company K. The simulator refers to the Busan NewPort-Uiwang section and functionally, it supports scenario generation and analysis on BT operation. It makes a contribution to study a new type's technological application for learning and strategic analysis of BTS.

The effect of smoking on the quality boiled sausage (훈제 처리가 가열소지에 미치는 영향)

  • 정청송;유상훈
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.12 no.2
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    • pp.1-41
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    • 2001
  • The effect of smoking on the quality sausage Sausages were prepared from beef, port, chickens, games, fish and shellfish with polyphosphate salt and spices. Sausage history goes back to 3,000 years of age. The procedure of sausage 1) Meat Curing 2) Meat Control 3) Add Spices 4) Permissible Ingredients 5) Grinding 6) Mixing Emulsion 7) Stuffing 8) Showing 9) Smoking 10) Cooking 11) Drying 12) Packaging Sausage Product to get information on the effect of smoking onto the quality of meat produces. Sausage was smoked under a given conditions. Smoking was conducted as 35f$^{\circ}C$to 6$0^{\circ}C$ the related humidity of smokehouse was still at 60 to 70 percent. Results are as follows: 1. The Penetrated smoke in sausage was prolonged < p.<0.02 when sausage was smoked 2hours at 60~$65^{\circ}C$ the penetrated amount of free acetone in sausage was 0.5mg%. 2. Peroxide value of sausage as heating treatment both at 3$0^{\circ}C$ and at 5$0^{\circ}C$ was prolonged. 3. When sausage was heated at 3$0^{\circ}C$, bacteria of sausage increased In number while at 60~$65^{\circ}C$ bacteria of sausage increased In number fourteen hours. 4. When sausage was treated with smoking the distribution of free amino acids in sausage was changed markedly. 5. The longer smoking time of the products was the higher the content. 6. In case of oak wood smoke flavoring all of test samples. 7. Rapid decrease of does-response mutagenic curve of the smoke flavoring of oak wood and apple wood by in the peak of curve and phenol in the smoke flavoring. Continuous efforts are required to make sausages easily in the butcher shops and in the restaurants. 8. Sausage texture evaluation has 13 rules. It is Elasticity, Surface Moisture, Surface Smoothness, Center Hardness, Skin Toughness, Cohesiveness, Denseness, Moisture Release, Cohesiveness of Mass, Lumpiness, Graininess (of Contents), Skin separation, Oiliness and sensory 11 rules evaluation is color, texture, mold, flavor, sweet test, salty, sourness, bitter, and savory taste. 9. Smoked, component, peroxide value, bacteria, color, free amino acid, tenderness, flavor, shrinkage are important values.

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Phenomenological Approach of Self Regulation Related to Health of patients with Adult Disease (성인병 환자들의 건강과 관련된 자기조절에 대한 현상학적 연구)

  • 김숙영
    • Journal of Korean Academy of Nursing
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    • v.25 no.3
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    • pp.562-580
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    • 1995
  • This research was an attempt to make it possible to provide nursing care and health education meet- ing the need not of care givers but of patients by identifying the nature of patients' self regulation experiences. The specific objective of this study was : 1) to explore self regulation experiences of patients with adult disease. The phenomenological approach in qualitative studies is used to serve this purpose. Colaizzi's method is used for the phenomenological analysis of the data in this study, which were collected from 25 patients hospitalized in the internal medical ward and oriental medical ward of a Seoul hospital, suffering from adult disease such as hypertension, arteriosclerosis and diabetes mellitus. The research was conducted over a period of March to September, 1994. The investigator conducted participated observations and in-depth unstructured interviews which were audiotaped under the permission of patients. The investigator read the data repeatedly to identify and categorize significant statements, formulating meanings, themes and theme clusters. The result is categorized as follows : Self regulation activities, their barriers and predisposing factors of a disease. Thirteen theme clusters of self regulation activities related to health identified were. “maintaining diet regimen”, “maintaining exercise regimen”, “maintaining medication regimen”, “maintaining oriental medical regimen”, “maintaining health monitoring regimen”, “maintaining self effort”, “maintaining religious life”, “maintaining social sup-port systems”, “maintaining peaceful mind”, “maintaining moderation in life”, “maintaining sincere attitude in life”, “maintaining natural life”, and “maintaining folk remedy” This findings confirm the fact that self regulation is complicatedly and diversely influenced by oriental medicine and folk remedy, and Korean traditional ideas melted in Confucianism, Buddhism, Taoism and Shamanism, and modern medical care and western culture. Seven theme clusters of self regulation barriers identified were : "lack of knowledge and self aware-ness", "lack of social supports", "lack of awareness of need in continuous regimen and treatment", "dissatisfaction with hospital and health care provider", "lack of self management ", "lack of will to combat illness", and "overconfidence in folk remedy" Four theme clusters of predisposing factors of a disease were : "cumulation of stressors", "fatalism", "careless life style", and "family history". In conclusion, this. study will prove helpful not only in understanding clients in light of our traditional culture but also in providing them with the kind of nursing care and health education satisfying their demands and particularly cultural needs.

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A Study on the Concentration and Deconcentration Development for Cruise Ports in Mediterranean Sea (지중해 크루즈 항만의 집중화 및 분산화에 관한 연구)

  • Liu, Siwei;Yeo, Gi-Tae
    • Journal of Digital Convergence
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    • v.18 no.7
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    • pp.37-46
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    • 2020
  • The aim of this research is to analyze the concentration and deconcentration development of cruise ports in the Mediterranean area by utilizing the concentration ratio (CR), the Herfindahl-Hirschman Index (HHI), the Gini coefficient, and shift share analysis (SSA). The results of analysis indicated a concentration trend in the West Mediterranean. The cruise ports located in Venice, Piraeus, Naples and Livrno in Adriatic and East Med region lost cruise passengers, while the those in West Mediterranean gained the passengers and showed the trend of concentration. This paper providing the shifting passengers among cruise ports that indicates the competitiveness of cruise ports for industrial stake holders to better understand the cruise ports such as tourist boards, ship agents, and port agents.

Asan Medical Center Laboratory Information System (R) Information Communication System for Routine Hematology Using a Down-Sized Computer - (서울중앙병원 임상병리과 정보관리시스템(III))

  • 민원기;최윤미
    • Journal of Biomedical Engineering Research
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    • v.15 no.3
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    • pp.333-340
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    • 1994
  • Laboratory information system (LIS) is a key tool to manage laboratory data in clinical pathology. Our department has developed an information system for routine hematology using down-sized computer system. We have used an IBM 486 compatible PC with 16 MB main memory, 210 MB hard disk drive, 9 RS-232C port and 24 pin dot printer The operating system and database management system were SCO UNIX and SCO foxbase, respectively. For program development, we used Xbase language provided by SCO foxbase. The C language was used for interface purpose. To make the system use friendly, pull-down menu was used. The system connected to our hospital information system via application program interface (API), so the information related to patient and request details is automatically transmitted to our computer. Our system interfaced with two complete blood count analyzers (Sysmex WE-8000 and Coulter STKS) for unidirectional data transmission from analyzer to computer. The authors suggests that this system based on down-sized computer could provide a progressive approach to total LIS based on local area network, and the implemented system could serve as a model for other hospital's LIS for routine hematology.

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A cell scheduling of a logically separated buffer in ATM switch (ATM 스위치에서 논리적으로 분할된 버퍼의 셀 스케쥴링)

  • 구창회;나지하;박권철;박광채
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.22 no.8
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    • pp.1755-1764
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    • 1997
  • In this paper, we proposed the mechanism for the buffer allocation and a cell scheduling method with logical separation a single buffer in the ATm switch, and analyzed the cell loss probability and the delay of each trafic (CBR/VBR/ABR) based on the weighted value and the dynamic cell service scheduling algorithm. The proposed switch buffering system classifies composite trafics incoming to the switch, according to the characteristic of traffic, then stores them in the logically separated buffers, and adopts the round-robin service with weighted value in order to transmit cells in buffers though one output port. We analyzed 4 cell service scheduling algorithms with dynamic round-robinfor each logically separated service line of a single buffer, in which buffers have the respective weighted values and 3 classes on mixed traffic which characteristized by traffic descriptor. In simulation, using SIMCRIPT II.5., we model the VBR and the ABR traffics as ON/OFF processes, and the CBR traffic as a Poisson processes. As the results of analysis according to the proposed buffer management mechanism and cell service algorithm, we have found that the required QoS of each VC can be quaranteed depends on a scale of weighted values allocated to buffers that changed the weighted values, and cell scheduling algorithm.

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The Characteristics of "Wooded Fortress of Beopseongjin in Yeonggwang" and Perspectives on the Problems of Landscape Management ("영광 법성진 숲쟁이" 의 특성 분석과 경관관리 문제점 고찰)

  • Choi, Jai-Ung;Kim, Dong-Yeob
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.13 no.6
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    • pp.13-24
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    • 2010
  • Beopseongpo has been one of the most thriving ports of the Jeolla region since the Goryeo Dynasty (918-1392). During the time of King Seongjong (r. 1469-1494) of Choseon Dynasty, a navy garrison had been deployed and the port was named Beopseongjin, as recorded in the 1485 edition of Grand code for state administration (Gyeongguk daejeon). Dangsan forests and Bibo forests have been maintained by local residents since hundreds of years ago. Dangsan forests have been applied to the scale of government and public offices. The objectives of this study were to understand the characteristics of the "Wooded Fortress of Beopseongjin in Yeonggwang" as "Scenic Site No. 22", and to investigate the conservational problem of the wooded fortress of Beopseongjin and seashore. The "Wooded fortress of Beopseongjin in Yeonggwang" consists of a Dangsan forest and two Bibo forests. But, the presence of the Dangsan forest has not been well known to the public. Although the wooded fortress has been somewhat disturbed by cultural activities, the Dangsan rituals have been held until the present every January 15 by lunar calendar. On the other hand, the seashore in front of Beopseongpo plays an important role as a scenic view. It was one of the reason that the "Wooded fortress of Beopseongjin in Yeonggwang" had been designated as a national cultural property of "Scenic Sites". However, the sandbar was reclaimed in 2009 to build commercial buildings. An integrated plan should be prepared to conserve the landscape of "Wooded fortress of Beopseongjin in Yeonggwang", which requires close partnership among local residents, experts, and local government. At present, four new buildings have been built. Although we have lost the sandbar, it is indispensable to secure the visibility of Wooded Fortress of Beopseongjin at the entrance of the village.