• 제목/요약/키워드: Validation & Verification

검색결과 575건 처리시간 0.025초

PACS DATA CD의 호환성 평가 및 DICOM 적합성에 대한 검증을 통한 기준 제시 (A Compatibility Assessment and Verification of Suitable to DICOM of PACS DATA CD : Current Situation Investigation of Korea)

  • 정재호;성동욱;박범진;손기경;강희두
    • 대한디지털의료영상학회논문지
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    • 제10권1호
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    • pp.29-34
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    • 2008
  • Purpose To analyze the input and output error of data CD which records the image information and the problems of the server of the compatibility. And to report a compatibility assessment and verification of suitable to DICOM of PACS data CD with investigation of current situation of Korea METHOD AND MATERIALS Date CD of each 8 vendors in 30 hospitals was analyzed. We grasped a main verification element existence of a generation compatibility of data CD. The items of element are media identification, DICOM compression, DICOM viewer send, specified object information modify, auto-run, DICOM content type, etc, and give 1 point for each item. We divided the assessment about an each item into 5 levels. Verification about. DICOM conformance by using DICOM validation tool kit is shown to be classified pass or fail according to error occurrence of tag valus. Classify the prequency of tag occurrence as the item. RESULTS The average point of date CD compatibility is 8 point (very good), lowest is 5 point (6.6%), and highest is 10 point (23%_. Most high occurrence frequency's distribution is 7 point (36.6%). As a result of verification about DICOM conformance, PASS in 8 occurrence frequency's distribution is 7 point (36.6%). As a result of verification about DICOM maximum length numbers (14 items), DICOM error of modality (10 items), discord of pixel data length (6 items). etc.

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환기가 제한된 두 개 격실 화재에서 FDS 검증분석 (Validation of FDS for Fire in Underventilated Condition with Two rooms)

  • 배용범;금오현;김윤일;류수현;김위경;박종석
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2008년도 추계학술논문발표회 논문집
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    • pp.438-443
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    • 2008
  • Fire model shall be verified and validated to reliably show the predictive capabilities for a specific use. In the process of model verification and validation, both the acceptable uses and limitation of fire model are established. In this study, the results of FDS simulation are compared with the data of PRISME experiment such as temperature, heat release rate, heat flux, product concentrations in the under-ventilated two-room condition. Furthermore, the sensitivity of FDS under ventilation condition changes are evaluated. FDS provide the reliable prediction for under-ventilated two-room fire scenario with slightly deviation.

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전자문서 유효기간 검증 기능을 탑재한 전자문서관리시스템 구현 (Implementation of EDMS(Electric Document Management System) with Validity Verification)

  • 박중오;이승민;김상근;전문석
    • 한국통신학회논문지
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    • 제35권7B호
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    • pp.1043-1049
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    • 2010
  • 전자문서의 신뢰성과 안정성을 보장하는 공인전자문서보관소를 구축,운영하는데 있어서 "전자문서 보관 및 발급 서비스"는 핵심 서비스 중에 하나이다. 문서 소유자가 전자문서를 등록한 후 향후 제 3자에게 발급하는 과정에서 등록된 전체의 정보가 아닌 부분정보 발급을 통해 불필요한 정보유출을 방지한다. 또한 유효성 검사 모듈을 문서 자체 내에 포함시켜 문서의 유효기간을 점검하는 시스템을 제안하였다.

정지궤도위성 전장품 성능검증을 위한 전기적 시험장치 개발 (Development of Electrical Test Bed for Function Validation of GEO Satellite Electronics Units)

  • 최재동;구철회
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 심포지엄 논문집 정보 및 제어부문
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    • pp.155-157
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    • 2005
  • The Electrical Test Bed(ETB) integrates the test environment, required for acceptance tests of system level, prior to FM testing. The ETB will be used for the validation of system-level functions and interface between each subsystem. The FTB supports early functional and limited performance checkout of electrical subsystems. Therefore, it provides the environment for the verification of the Flight Software including AOCS, EPS, and TC&R simulators. These ETB will be composed of engineering version of spacecraft BUS, which are laid on the laboratory table.

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A Validation Model for the Statistical Power Balance Method Using a Reverberation Chamber

  • Lee, Young Seung;Choi, Sung Woong;Park, Seung Keun
    • Journal of electromagnetic engineering and science
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    • 제13권3호
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    • pp.192-194
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    • 2013
  • This paper proposes a validation model using a reverberation chamber for verification of the effectiveness and accuracy of the statistical power balance (PWB) method. The PWB method treats electromagnetic (EM) field distributions in certain environments as a representative value of an "ensemble" average, so a reverberation chamber is utilized as a testing apparatus to experimentally simulate the sets of measurement field "ensemble" inside a complex environment. Measurements are performed with various test conditions for environmental loss using flat absorbers, and front and side doors of the chamber. Comparison between the PWB analysis and the measurement results shows good agreement, indicating the usefulness of this statistical analysis method for stating the electromagnetic field inside the EM zone as a representative value to general structures.

생약복합제 GCSB-5의 품질 표준화를 위한 방풍의 지표성분 탐색 및 HPLC 분석 (HPLC Analysis and Screening of Standard Compound on Saposhnikoviae Radix for Standardization of GCSB-5 Preparation)

  • 차배천;이은희
    • 생약학회지
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    • 제40권2호
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    • pp.103-108
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    • 2009
  • GCSB-5 preparation is a purified extract from a mixture of 6 medicinal plants(Acanthopanacis Cortex, Achyranthis Radix, Saposhnikoviae Radix, Cibotii Rhizoma, Glycine Semen Nigra, Eucommiae Cortex) that have been widely used for the treatment of various bone disorders. The aim of this study was to investigate HPLC analysis method and screening of standard compound on Saposhnikoviae Radix for quality standardization of a medicinal crude drug GCSB-5. Standard compound of Saposhnikoviae Radix was decided with cimifugin by isolation and instrumental analysis such as NMR. HPLC analysis method for the simultaneous determination of cimifugin was established for the quality control of the medicinal plants of Saposhnikoviae Radix species, GCSB-5 raw material and preparation. And validation of HPLC analysis methods were conformed for verification of HPLC methods by check to specificity, linearity, intra-day precision, inter-day precision and accuracy following ICH guideline.

다목적 전술차량의 주행내구도 시험 절차 및 검증 (Endurance test procedure and validation of Multipurpose tactical vehicle)

  • 정의봉;강동석;최지호;김한생;최만식
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2014년도 추계학술대회 논문집
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    • pp.256-261
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    • 2014
  • Endurance test procedures of multipurpose tactical vehicle is constructed by comparing the Korea defence standard and TOP-2-2-506. The plan was to make the best reflect the operational environment and the actual production purposes. Endurance test of multipurpose tactical vehicle more stringent than the existing other military vehicles validation procedures. But the test plan, it is possible to reduce the cost and schedule of long verification that occurs because of the Endurance test. Through a comparison of the dynamic characteristic analysis, change of test center was to ensure the reliability and validity.

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Development of Performance Analysis System (NOPAS) for Turbine Cycle of Nuclear Power Plant

  • Kim, Seong-Kun;Park, Kwang-Hee
    • Nuclear Engineering and Technology
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    • 제33권1호
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    • pp.34-45
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    • 2001
  • We have needs to develop a performance analysis system that can be used in domestic nuclear power plants to determine performance status of turbine cycle. We developed new NOPAS system to aid performance analysis of turbine cycle . Procedures of performance calculation are improved using several adaptations from standard calculation algorithms based on ASME (American Society of Mechanical Engineers) PTC (Performance Test Code). Robustness in the performance analysis is increased by verification & validation scheme for measured input data. The system also provides useful aids for performance analysis such as graphic heat balance of turbine cycle and components, turbine expansion lines, automatic generation of analysis reports.

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Verification and validation of ShipMo3D ship motion predictions in the time and frequency domains

  • Mctaggart, Kevin A.
    • International Journal of Naval Architecture and Ocean Engineering
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    • 제3권1호
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    • pp.86-94
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    • 2011
  • This paper compares frequency domain and time domain predictions from the ShipMo3D ship motion library with observed motions from model tests and sea trials. ShipMo3D evaluates hull radiation and diffraction forces using the frequency domain Green function for zero forward speed, which is a suitable approach for ships travelling at moderate speed (e.g., Froude numbers up to 0.4). Numerical predictions give generally good agreement with experiments. Frequency domain and linear time domain predictions are almost identical. Evaluation of nonlinear buoyancy and incident wave forces using the instantaneous wetted hull surface gives no improvement in numerical predictions. Consistent prediction of roll motions remains a challenge for seakeeping codes due to the associated viscous effects.

DESIGN OF A FPGA BASED ABWR FEEDWATER CONTROLLER

  • Huang, Hsuanhan;Chou, Hwaipwu;Lin, Chaung
    • Nuclear Engineering and Technology
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    • 제44권4호
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    • pp.363-368
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    • 2012
  • A feedwater controller targeted for an ABWR has been implemented using a modern field programmable gate array (FPGA), and verified using the full scope simulator at Taipower's Lungmen nuclear power station. The adopted control algorithm is a rule-based fuzzy logic. Point to point validation of the FPGA circuit board has been executed using a digital pattern generator. The simulation model of the simulator was employed for verification and validation of the controller design under various plant initial conditions. The transient response and the steady state tracking ability were evaluated and showed satisfactory results. The present work has demonstrated that the FPGA based approach incorporated with a rule-based fuzzy logic control algorithm is a flexible yet feasible approach for feedwater controller design in nuclear power plant applications.