• 제목/요약/키워드: discard

검색결과 201건 처리시간 0.026초

Computer-aided polyp characterization in colonoscopy: sufficient performance or not?

  • Natalie Halvorsen;Yuichi Mori
    • Clinical Endoscopy
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    • 제57권1호
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    • pp.18-23
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    • 2024
  • Computer-assisted polyp characterization (computer-aided diagnosis, CADx) facilitates optical diagnosis during colonoscopy. Several studies have demonstrated high sensitivity and specificity of CADx tools in identifying neoplastic changes in colorectal polyps. To implement CADx tools in colonoscopy, there is a need to confirm whether these tools satisfy the threshold levels that are required to introduce optical diagnosis strategies such as "diagnose-and-leave," "resect-and-discard" or "DISCARD-lite." In this article, we review the available data from prospective trials regarding the effect of multiple CADx tools and discuss whether they meet these thresholds.

ATM 스위치에서 폐기 임계치를 가진 셀전송비율 제어형 우선순위 제어방식의 성능 분석 (Performance analysis of priority control mechanism with cell transfer ratio and discard threshold in ATM switch)

  • 박원기;김영선;최형진
    • 한국통신학회논문지
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    • 제21권3호
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    • pp.629-642
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    • 1996
  • ATM switch handles the traffic for a wide range of appliations with different QOS(Quality-of-Service) requirements. In ATM switch, the priority control mechanism is needed to improve effectively the required QOS requirements. In this paper, we propose a priority control mechanism using the cell transfer ratio type and discard threshold in order to archive the cell loss probability requirement and the delay requirement of each service class. The service classes of our concern are the service class with high time priority(class 1) and the service class with high loss priority control mechanism, cells for two kind of service classes are stored and processed within one buffer. In case cells are stored in the buffer, cells for class 2 are allocated in the stored and processed within one buffer. In case cells are stored in the buffer, cells for class 2 are allocated in the shole range of the buffer and cells for class 1 are allocated up to discard threshold of the buffer. In case cells in the buffer are transmitted, one cell for class 1 is transmitted whenever the maximum K cells for class 2 are transmitted consecutively. We analyze the time delay and the loss probability for each class of traffic using Markov chain. The results show that the characteristics of the mean cell delay about cells for class 1 becomes better and that of the cell loss probability about cells for class 2 becomes better by selecting properly discard threshold of the buffer and the cell transfer ratio according to the condition of input traffic.

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동해 삼중자망어업의 해역별 어획 특성과 혼획·투기 현황 (Catch characteristic and present condition of by-catch & discard of trammel nets fishery in the East Sea)

  • 배봉성;안희춘;박해훈;박창두;양용수
    • 수산해양기술연구
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    • 제46권2호
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    • pp.103-114
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    • 2010
  • For an effective management of fisheries resources, we need fisheries informations necessary for the establishment of reasonable fishing effort and TAC distribution. To study the present state of by-catch and discard of gill-net fishery in the East Sea, we carried out fishing research using trammel nets in the coastal sea of Susan-port (Yangyang), Jangho-port (Samcheok) and Hupo-port (Uljin). As a result, a total of catch of Susan was 259,172g and that of Hopo was 577,638g. Thus Catch of Susan was 1.49 times more than that of Hupo considering the number of used fishing gear. And catch of Janho was 7.4 times more than that of Susan considering the number of experiment. Two methods of by-catch analysis in this study were used, one method is standardizing of listed species catching possible in fishing license, another method is regarding catch species under 1% of total catch as by-catch. As a result of by-catch analysis of two method, by-catch rate of Susan was 6.55% and 5.87% respectively, that of Hupo was 44.70% and 5.24% and that of Jangho was 0.96% and 2.31%. Discard rate of fish in Susan, Hupo and Jangho were 1.59%, 3.42%, 2.23% respectively.

의복 착용 동기에 따른 의복 효용 감소에 대한 방응 (Response to Clothing Utility-Reduction according to Clothing-Wearing Motives)

  • 정인희;박상진;권영일
    • 한국의류학회지
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    • 제25권7호
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    • pp.1332-1340
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    • 2001
  • This study was designed (1) to examine the results of previous qualitative research on clothing-wearing motives by quantitative approach, (2) to explore the concept of clothing utility, utility-reduction and discard, and (3) to investigate the impact of clothing-wearing motives on consumer attitudes and consuming-behaviors. Date were collected by questionnaire from 443 collegiate students between August and September of 2000, and 396 questionnaires were analyzed. 3 groups were identified on the basis of clothing-wearing motives and named by extroversion group, introversion group, and least clothing-congnizing group respectively. This supported the qualitative results in part, especially in the direction of motives. Clothing utility-reduction factors were identified as appearance demage, social-psychological damage, and abandonment-causing damage. The 3 groups were responded on utility-reduction differently, thus clothing-wearing motive variable was determined as useful in fashion marketing.

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상품Contents를 이용한 효율적인 물품관리에 관한 연구 (A Study of efficient commodities Management that use it′s Contents)

  • 안종환
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 2003년도 종합학술대회 논문집
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    • pp.178-183
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    • 2003
  • Past commodities management concept that mean simple Management after goods purchase. Today, it developed to system that manages from purchasing plan to discard by Computer's development. But, kind of goods is very various from System Commodities to Spare Parts. Also, among use of goods, according to state, accounting operation should be associated but it is functionless real condition that can confirm uniformity goods availability actually. In this study, studied about plan that use Commodities Contents from purchase of goods to discard so that can do goods and accountant management.

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종합병원 자산관리 정도 및 요인 분석 (The Factors affecting the Level of Fixed Assets Management in General Hospitals)

  • 서영근;유승흠;이해종;박은철
    • 한국병원경영학회지
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    • 제1권1호
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    • pp.21-36
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    • 1996
  • The purpose of this study is to evaluate the level of fixed assets management of the factors affecting its management level. The surveyed data were gathered from 105 general hospitals among 263 general hospitals nationwide. The level of fixed assets management was measured by 11 dimensions of assets management. The results were as follows : 1. According to general characteristics of hospitals, the management level of public hospitals and corporatized hospitals was better than that of private hospitals. The management level was better as increasing beds. 2. In the structural characteristics of assets management, the management level of the hospitals which had the responsible person for assets management was better than that of the hospitals which had not. 3. In the operating characteristics of assets management, the hospitals that conducted education for the job had better level of assets management that did not it. The hospital that the discard of assets was decided by engineering department or management department were better in management level than the hospitals that it was decided by user department. The management level of hospitals which were computerized for assets management was better. 4. In the full model, the most factors affecting the level of assets management were the factors that were characterized by operation pattern of assets management, and the operating characteristics of assets management were explained to 23.1% of total 45.7%. Conclusively, the level of assets management was mostly affected by the operating characteristics of assets management which were education for the job, discard decision not by user department, computerization for assets management. Therefore, hospitals perform education of the job, discard decision by engineering or management department, and computerization for better level of fixed assets management

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표준기록관리시스템 평가·폐기 기능 평가 (Evaluation of Appraisal and Disposal Function of the Standard Records Management System)

  • 이보람
    • 기록학연구
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    • 제38호
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    • pp.37-73
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    • 2013
  • 오늘날 공공기관의 기록물 생산 및 관리는 법제적 안정을 이루었고 인프라 고도화를 통해 상당한 수준에 도달했다. 이에 따라 철저한 전자적 행정기록의 생산 관리를 법률로 규정하고 있으며 보존기간, 업무기능에 따라 행정 및 역사적 가치가 매겨지고 일정한 절차에 의해 평가 폐기를 수행하도록 하고 있다. 각급 공공기관에 기록물관리 전문요원을 배치하도록 명시하고 있는 근본적인 이유 중 하나는 평가 폐기 시 심의과정 중재와 무단폐기 방지 등의 역할을 감당하고 전문성을 통해 올바른 평가가 가능하게 하려는 것이다. 평가 폐기가 기록관리 업무에서 중요한 의미를 가지는 만큼, 표준기록관리시스템은 업무를 기능적으로 적절히 구현하여 효율적이고 합리적으로 이를 지원해주어야 한다. 기록물 폐기 결정은 시스템의 기술적 논리적 프로세스를 거쳐 수행되므로 표준기록관리시스템의 평가 폐기 기능은 무엇보다 중요하다고 할 것이다. 이 연구는 공공기록물 관련 법제 및 전자기록 관련 표준을 분석하고 기록관리시스템 사용자설명서를 검토하여 표준기록관리시스템이 갖추어야 할 최소한의 기능요건을 도출한다. 또한 공공기관 기록물관리 전문요원 면담 결과를 바탕으로 표준기록관리시스템을 통해 이루어지는 평가 폐기 업무를 평가하고 시사점을 제시하며 향후 개선방향 및 후속연구에 대해 논의하고자 한다.

가상현실을 이용한 유적지 복원 상호작용 기술 (Interactive Technics for Cultural Properties Restoration Using Virtual Reality)

  • 김태훈
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2010년도 춘계학술발표논문집 1부
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    • pp.523-526
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    • 2010
  • 본 논문에서는 우리 옛 조선의 한양 모습을 경복궁을 중심으로 가상현실을 이용하여 복원 하였다. 복원에 있어 단원 분할 및 Resource Manager Discard Bytes channel의 가상현실 방법을 채택하여 memory 및 vedio memory 점유율을 낮춰 가상현실 실행 속도와 그래픽 효과의 퀄리티를 높이는데에 그 목적이 있다.

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전남 진도지역 낭장망 어업에 있어서 혼획 연구 (A Study on a Bycatch of the Gape Net in Jindo Area of Jeollanam-do)

  • 김성훈;박창두;박성욱
    • 수산해양교육연구
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    • 제24권2호
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    • pp.137-145
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    • 2012
  • In order to survey the conditions of bycatch and discards for a gape net, a series of filed surveys was carried out total 10 surveys on two gape nets operated in the coastal area of Jindo during July to November 2008. The all catches in each survey were measured the body length, weight after sorted species. The analysis of catch data was conducted to separate 'first operation' and 'general operation'. In this study, the first operation defined as hauling the fishing gears that soaked over 10 hours because of setting on the previous day. The general operation means the haul of fishing gears conducted at intervals of one of or two hours after first operation. The bycatch in this study is defined as the other species except for anchovy, and bycatch rate refers to the proportion of bycatch to total catch. From the survey results, the average bycatch rates on first operations were 50% and 51% for Masa-ri and Supum-ri areas in Jindo, respectively. Also, the average bycatch rates on general operation were 2% and 3% for Masa-ri and Supum-ri areas in Jindo, respectively. The proportion of anchovy to total catch caught represented 75.5%. It needs the research on the selective fishing technology to reduce the bycatch on the gape net fishery.

입출력버퍼형 ATM 교환기의 셀 폐기 방법에 대한 새로운 기준 제안 및 성능 분석 (A New Criterion of Cell Discard in an ATM Switch with Input and Output Buffers)

  • 권세동;박현민;최병석;박재현
    • 한국정보처리학회논문지
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    • 제7권4호
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    • pp.1246-1264
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    • 2000
  • An input-output buffering switch operates in either of tow different cell loss modes; Backpressure mode and Queueloss mode. In the previous studies, the Backpressrue mode is more effective at low traffic loads, and the Queueloss mode performs better at high traffic. We propose a new operation mode, called Hybrid mode, which adopts the advantages of he Backpressure and the Queueloss mode. Backpressure and Queueloss modes are distinguished from whether a cell loss occurs at the output buffer or not when output buffer overflows, irrespective of input buffer status. In order to simply combine Backpressure and Queueloss mode, the change of input traffic load must be measured. However, in the Hybrid mode, simply both of the input and output buffer overflow and checked out to determine the cell discard. The performance of the Hybrid mode is compared with those of the Backpressure and the Queueloss mode under random and bursty traffic. This paper show that the Hybrid mode always gives the best performance results for most ranges of load values.

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