• Title/Summary/Keyword: RIA

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Uncertainty and sensitivity analysis in reactivity-initiated accident fuel modeling: synthesis of organisation for economic co-operation and development (OECD)/nuclear energy agency (NEA) benchmark on reactivity-initiated accident codes phase-II

  • Marchand, Olivier;Zhang, Jinzhao;Cherubini, Marco
    • Nuclear Engineering and Technology
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    • v.50 no.2
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    • pp.280-291
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    • 2018
  • In the framework of OECD/NEA Working Group on Fuel Safety, a RIA fuel-rod-code Benchmark Phase I was organized in 2010-2013. It consisted of four experiments on highly irradiated fuel rodlets tested under different experimental conditions. This benchmark revealed the need to better understand the basic models incorporated in each code for realistic simulation of the complicated integral RIA tests with high burnup fuel rods. A second phase of the benchmark (Phase II) was thus launched early in 2014, which has been organized in two complementary activities: (1) comparison of the results of different simulations on simplified cases in order to provide additional bases for understanding the differences in modelling of the concerned phenomena; (2) assessment of the uncertainty of the results. The present paper provides a summary and conclusions of the second activity of the Benchmark Phase II, which is based on the input uncertainty propagation methodology. The main conclusion is that uncertainties cannot fully explain the difference between the code predictions. Finally, based on the RIA benchmark Phase-I and Phase-II conclusions, some recommendations are made.

A critical study on best methodology to perform UQ for RIA transients and application to SPERT-III experiments

  • Dokhane, A.;Vasiliev, A.;Hursin, M.;Rochman, D.;Ferroukhi, H.
    • Nuclear Engineering and Technology
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    • v.54 no.5
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    • pp.1804-1812
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    • 2022
  • The aim of this paper is to assess the reliability and accuracy of the PSI standard method, used in many previous works, for the quantification of ND uncertainties in the SPERT-III RIA transient, by quantifying the discrepancy between the actual inserted reactivity and the original static reactivity worth and their associated uncertainties. The assessment has shown that the inherent S3K neutron source renormalization scheme, introduced before starting the transient, alters the original static reactivity worth of the transient CR and reduces the associated uncertainty due to the ND perturbation. In order to overcome these limitations, two additional methods have been developed based on CR adjustment. The comparative study performed between the three methods has showed clearly the high sensitivity of the obtained results to the selected approach and pointed out the importance of using the right procedure in order to simulate correctly the effect of ND uncertainties on the overall parameters in a RIA transient. This study has proven that the approach that allows matching the original static reactivity worth and starting the transient from criticality is the most reliable method since it conservatively preserves the effect of the ND uncertainties on the inserted reactivity during a RIA transient.

Development of a RIA-based Dynamic Mashup Service for Ocean Environment (RIA 기반 해양 환경 동적 매쉬업 서비스 개발)

  • Ceong, Hee-Taek;Kim, Hae-Jin;Kim, Hae-Ran
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.10
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    • pp.2292-2298
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    • 2010
  • A mashup is a web page or application that uses and combines information, contents or Open APIs available on the web to create a new service. The mashup developed by the need not combination of simple information can contribute to new added-values with practicality and convenience. Thus, in this paper, we want to develop a RIA-based dynamic mashup service for the users considering weather forecast and marine information importantly. We design and implement the system that it can register a number of information about a domain dynamically through registration process based on the map and present a mark of domain location on the map and the information including internal environment, external environment and weather of related to the domain within a webpage. Implemented service need not require a tedious process visiting other web sites every time to confirm the relevant information because we can see simultaneously related information with a map within a page.

Relative Immigration Activity of the Hibernal Diatom Community in Eutrophic Waters (저온기 부영양 수계 규조군집의 유입능)

  • Yoon, Sung-Ae;Kim, Nan-Young;Kim, Baik-Ho;Hwang, Soon-Jin
    • Korean Journal of Ecology and Environment
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    • v.41 no.3
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    • pp.311-319
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    • 2008
  • To understand the relative immigration activities (RIA) of hibernal diatom community in Lake Ilgam (at the station with and without macrophyte) and River Han (at the station with different current and nutrient), a natural and artificial bed substrate was deposited from 15 to 29 January 2008. For the study period, both waters comprised huge biomass of diatom, over 75% of total abundance. Nutrients in water column, ash-free dry matter (AFDM) and chlorophyll-a (Chl-a) concentration in substrates were decreased with increasing of current in rivers, while in lakes the macrophyte largely affected the diatom community and water quality. Algal RIA in rivers was high at stations with high concentration of nutrient, AFDM and Chl-a, and in high nutrients and no macrophytes in lakes, respectively. The species showing a higher RIA was Nitzschia amphibia in rivers and Aulacoseira italica in lakes, while the dominant species were Navicula sp. in rivers and Syndera acus in lakes, suggesting no relationship between water algal biomass and its RIA. These results suggest that the RIA of stream diatom community depends exclusively on the current, while the planktonic diatom in lake was of the macrophyte.

Correation between Microalbuminuria Checked by RIA & Micral - Test$^{(R)}$ (방사면역측정법 및 MICRAL-TEST$^{(R)}$ 로 측정한 미세단백요 사이의 상관관계에 대한 연구)

  • Lee, Chan-Woo;Won, Kyu-Chang;Choi, Soo-Bong
    • Journal of Yeungnam Medical Science
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    • v.8 no.2
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    • pp.158-163
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    • 1991
  • It is evident that an elevation of airway albumin excreation rate without clinical proteinuria strongly predicts a later progression on diabetic renal disease. So we studied the correation between Microalbumin checkly RIA & Mitral-Test$^{(R)}$. We collected urine between 08 : 00 h and 08 : 00 h next day and then checked microalbuminuria by radioimmunoassay method and Mitral-Test$^{(R)}$ The results are as follows : 1. There was significant correation between microalbuminuria checked by RIA & Micral-Test$^{(R)}$ 2. There was poor correations between diabetes duration or HV-A1c and maximal change in albumin excreation rate. 3. So we conclued that Micral-Test$^{(R)}$ can be used in laboratory instead of RIA.

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Design of Web application for Deep-sea fishing Sailing Information based by RIA (원양어선 항해정보를 위한 RIA기반의 웹 어플리케이션 설계 및 구현)

  • Jung, Hoe-Jun;Park, Dea-Woo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.10
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    • pp.2272-2278
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    • 2011
  • The company which have deep-sea fishing vessel have to improve their voyage dashboard that was operating by manually to grasp sailing information of fishing vessel. This thesis design sailing information that is ship location on the globe, a catch of fish, and line of longitude and latitude to display on the map more visually by using on-line PC or DID (Digital Information Display). Thesis considered about designing web application which is available to visualize sailing information of 37 deep-sea fishing vessels in operation by using Flash-based RIA technology. This system was improving operator's and administrator's satisfaction of using information because, It make possible not only to grasp status of many vessels in one display but also to monitoring situation and deciding process.

A Study on the Web Application for Sailing Ship Location Information interface based by RIA (RIA기반의 선박항해정보를 위한 웹 애플리케이션 구축 "평택항 원양어선 항해정보현황 사례를 중심으로")

  • Jung, Hoe-Jun;Park, Dea-Woo;Han, Kyung-Don
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.10a
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    • pp.613-616
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    • 2009
  • Information present condition is using situation board by manual processing that is consisted of ship arrangement plan and letterpress and magnet etc. in Pyeongtaekhang's deep-sea fishing vessel company. Study that mark open sea far from land ship information of underway 37 ships that is accepted in every time in internet web application environment that is based on Ubiquitous Network in PC that is linked to internet. 3 through practical use of RIA of Flash technology base compose Digital Dash-Board in width grid structure only and do ship sailing addition that is operating in 6 oceans and latitude, hardness indication as well as various informations to do visual display do. Emphasized in dynamic Web Application construction because can heighten the convenience to operator and user, and take advantage of real time data.

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Application of Chemiluminescence Enzyme Immunoassay Method to Collect in vivo Matured Oocyte in Dog Cloning (개 복제 시 체내 성숙 난자 회수를 위한 화학발광효소면역분석기법의 적용)

  • Kim, Min-Jung;Oh, Hyun-Ju;Kim, Geon-A;Jo, Young-Kwang;Choi, Jin;Lee, Byeong-Chun
    • Journal of Veterinary Clinics
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    • v.31 no.4
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    • pp.267-271
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    • 2014
  • Accurate determination of in vivo oocyte maturation is particularly critical for dog cloning compared to other assisted reproductive technologies because oocytes in metaphase II stage have to be recovered in order to undergo somatic cell nuclear transfer right after its recovery. The aim of present study was to evaluate the reliability and to set a reference range of a chemiluminescence enzyme immunoassay (CLEIA) compared to radioimmunoassay (RIA) method to retrieve in vivo matured oocytes. Serum progesterone concentration during proestrus and estrus was analyzed by RIA and CLEIA to determine ovulation day (Day 0). On Day 3, in vivo oocytes were recovered surgically and evaluated microscopically maturation status after staining nucleus with bisbenzimidazole dye. Mean progesterone concentration by CLEIA ($7.64{\pm}0.06ng/ml$) was significantly higher than by RIA ($6.46{\pm}0.04ng/ml$, P < 0.0001). It was not different between CLEIA ($10.01{\pm}0.34ng/ml$) and RIA values ($7.91{\pm}0.14ng/ml$, P < 0.05) on Day 0, but significantly higher CLEIA level on Day -1 and Day 1 ($6.41{\pm}0.15$ and $14.25{\pm}0.44ng/ml$) was assessed compared to RIA ($4.95{\pm}0.10$ and $11.29{\pm}0.34ng/ml$). However, with both methods, progesterone level was significantly increased from Day -1 to Day 2. To determine oocyte maturation with CLEIA method, a wider and higher reference range has to be considered.

자동차전용선 해상운송계획지원을 위한 RIA 기반 해상운송계획시스템 개발

  • Choe, Hyeong-Rim;Kim, Hyeon-Su;Lee, Jeong-Hui;Park, Chang-Hyeon
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2007.12a
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    • pp.219-220
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    • 2007
  • 차량화물은 국내 품목별 수출물량의 2위를 차지하는 수출화물로(현재 2007년 상반기), 한미 FTA 이후 수출물량이 점차 더 증가할 것으로 예상되어 그 중요성이 높아지고 있다. 이러한 수출 차량화물을 해상운송하는 Car Carrier업체(차량화물 운송전문 업체)의 효율적인 수출업무 처리를 위해, 실시간으로 변하는 정보를 효과적으로 표현 및 변경이 가능하고, 운송계획에 필요한 관련 정보를 제공받을 수 있는 시스템이 필요하다. 그러나 현재 대부분의 Car Carrier업체는 작업자의 경험에 의존한 수작업으로 운송계획을 수립하는 문제점이 있다. 본 연구에서는 Car Carrier업체의 해상운송계획 수립 시 의사결정을 효율적으로 지원할 수 있도록 사용자 인터페이스를 강화한 RIA(Rich Internet Application)기반의 자동차 해상운송계획시스템을 설계 및 개발하고자 한다.

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Radioimmunoassay of High-Density Lipoprotein in Japanese Quail Serum (메추리혈청 리포단백질의 방사면역분석법)

  • 한병훈;한용남;유시용;양현옥;박명환
    • YAKHAK HOEJI
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    • v.29 no.2
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    • pp.90-95
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    • 1985
  • The development of radioimmunoassay (RIA) for high-density lipoprotein (HDL) in Japanese quail serum will contribute to the screening of drugs acting on cholesterol transport. We have developed a double antibody RIA method for J. quail HDL. The first antibody was raised in rabbit by immunization of HDL isolated by the dextrane sulfate-$Mn^{#}$ precipitation method. For the preparation of raclioiodinated antigen, HDL was further purified by combination of electrophoretic procedure. Using the second antibody raised in goat by rabbit IgG, we have furnished the RIA method for HDL. It showed high specificity and sensitivity of working assay range, 0.1-33.mu.g HDL/tube. There was no correlation between the radioimmunoassay of HDL and the enzyme assay of HDL-cholesterol.

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