This study (1) investigates the neutronic characteristics of the Pebble Bed Advanced High Temperature Reactor (PB-AHTR); (2) compares the PB-AHTR neutronic performance against those of the alternative design options of He-cooled high temperature reactors using either pebble (PBMR) or prismatic (VHTR) fuel and against a liquid-salt cooled design version of the latter (LS-VHTR); (3) studies the p...

Our previous studies on water cooled thorium breeder reactor based on matured pressurized water reactor (PWR) plant technology concluded that reduced moderated core by arranging fuel pins in a triangular tight lattice array and using heavy water as coolant is appropriate for achieving better breeding performance and higher burn-up simultaneously [1–6]. One optimum core that produces 3.5 GW ther...

INTRODUCTION The Risk-Informed Safety Margin Characterization (RISMC) [1] Pathway (as part of the Light Water Sustainability (LWRS) Program [2]) aims to develop simulation-based tools and methods to assess risks for existing Nuclear Power Plants (NPPs). This Pathway, by developing new methods, is extending the Probabilistic Risk assessment (PRA) stateof-the-practice methods [3] which have been ...

Length-weight relationships (L-WRs) and condition factors were estimated for eight exotic fish species, including Oreochromis niloticus, Coptodon zillii, Carassius auratus, C. gibelio, Pseudorasbora parva, Gambusia holbrooki, Lepomis gibbosus, Oncorhynchus mykiss from 10 basins of Turkish inland waters. A total 1958 specimens sampled in the years 2014, 2017, 2018, 2019 29 populations their LWRs...

Background: The study of the length-weight relationship (LWR) and condition factor (K) are critical in fisheries research management. However, there is currently a dearth information on growth pattern state health Parachanna obscura Epe lagoon Methods: A total 252 species P. ranging from 19.50 to 36.70 cm (standard length = 28.22 ± 4.95 cm) 58.80 331.00 g (total weight 267.69 72.16 g) were obta...

This study provides length-weight relationships (LWR) that had not yet been reported for four fish species belonging to different families: Chrysichthys johnelsi Daget, 1959, Cynoglossus senegalensis (Kaup, 1858), Citharichthys stampflii (Steindachner, 1894) and Pseudotolithus typus, Bleeker, 1863. Data were collected in the Fatala estuary, republic of Guinea, each month between January 1993 Ma...

In this study, the growth parameters of big-scale sand smelt (Atherina boyeri Risso, 1810) in İznik Lake has been determined with traditional (length weight relationships (LWRs), von Bertalanffy (VB), condition factor (CF)) and modern approaches (Artificial Neural Networks - ANNs). A total 635 specimens (44.84% female 55.16% male) were collected from local fisherman during hunting season betwee...

Previous work was done to create a baseline capital cost model for the SFR in which case studies were performed to identify ways to decrease the capital costs while maintaining safety and performance. This thesis expands on the capital cost model to include uncertainty analysis, as well as performing qualitative cost evaluations for the fuel cycle and O&M costs. An uncertainty model was develop...