1,720,970 research outputs found
Quantitative code accuracy evaluation of ISP 27 based on a BETHSY Experiment
No full textThe Fast Fourier Transform Based Method (FFTBM) is applied to the pre-test and the post-test analysis of the International Standard Problem (ISP) 27 under the framework of Organization for Economic Cooperation and Development / Nuclear Energy Agency / Committee on the Safety of Nuclear Installations (OECD/NEA/CSNI). Around 30 (thirty) international participants adopting a variety of computer codes, submitted results for the comparison report of ISP 27 and are considered in the paper. A hierarchy of the quality of the various calculations could be set-up
Current Status of Methodologies evaluating the Uncertainties in the prediction of thermalhydraulic phenomena in nuclear reactors
No full textCSNI validation matrix for the assessment of thermal-hydraulic codes for PWR LOCA and Transients
No full textAs Italian representative inside the thermal-hydraulic task group of Organization for Economic Cooperation and Development (OECD) / Nuclear Energy Agency (NEA) / Committee on the Safety of Nuclear Installations (CSNI), the current author contributed to a preliminary activity which ended up in an OECD publication. The framework of the activity is assessment and validation of system thermal-hydraulic codes.
Preliminary steps were taken to fix the requirements for the validation. Importance was given to the experimental data and to the scaling processes. The document evolved in about five years to the form a pillar document in the area of nuclear thermalhydraulics. Coauthors were top level researches and specialists working in the area at the time
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
