In Germany, the last light water reactor (LWR) was put into service in 1989 (Neckar-2) [1], and due to the current political atmosphere no new LWRs are being considered for construction by the utilities at this time. Therefore, nondestructive testing (NDT) for new construction is no longer an attractive business, and is only required after component repair and/or component replacement. The tech...

We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of a Balmer filament in the northeast region of the Cygnus Loop supernova remnant. The data consist of one spectrum obtained through the 30 × 30 (LWRS) aperture and three spectra at adjacent positions obtained through the 4 × 20 (MDRS) aperture. The nonradiative shocks in the region giving rise to these faint optical filament...

Probabilistic Safety Assessments (PSAs) have been performed during the design process for GE Hitachi Nuclear Energy (GEH) advanced nuclear power plant designs, including the ABWR and ESBWR advanced LWRs and the advanced sodium-cooled PRISM fast reactor. As part of the process for each plant, PSA results and risk insights have been developed and provisions were included to ensure that PSA modeli...

Several B lined ionization chambers with and without gamma compensation have been developed with cylindrical and parallel plate electrode geometry. These detectors have been developed after extensive studies on the optimization ofthe neutron and gamma sensitivities, the voltage /current (V/I) characteristics and the response of the detectors as a function of neutron flux. The reliability and lo...

The present study depicts the first comprehensive description on population structure, growth pattern (length-weight relationships, LWRs and length-length LLRs), condition factor (allometric, KA; Fultonʹs, KF; relative, KR relative weight, WR), maturity (size at sexual maturity; Lm), form (a3.0) natural mortality (Mw) of Trichogaster fasciata (Bloch Schneider, 1801)in Ganges River, Northwestern...

The Coruh trout (Salmo coruhensis Turan, Kottelat & Engin, 2010) is a freshwater fish species endemic to Turkey. This study describes the allometric relationships between sagittal otolith (sagitta) measurements and total length (TL) of collected from Çam stream (Artvin, Turkey), length-weight relationship. A 82 individuals were caught with an electroshock device May 2017 April 2018. (LO), h...

The climbing perch, Anabas testudineus, is a nutritionally and economically significant food fish. present study reveals the first comprehensive description of life-history traits A. testudineus scooped up through different traditional fishing gears from July 2020 to December 2020. Among 120 collected specimens, smallest largest specimens were 8.5 cm–14.6 cm TL in Nilphamari Patuakhali, respect...

To assess the potential impact of using hafnium as absorber material in LWRs high temperature accidental situations, oxidation behavior was studied up to 1400°C, i.e. at conditions relevant severe accidents. Different sample geometries were tested and oxidized steam/argon mixtures, either a furnace or thermogravimetric analyzer. Metallographic examinations, hydrogen measurements EPMA oxygen pro...

In the presently reported study, we estimated length–weight relation (LWRs) for seven species of freshwater fishes from Central America. Samples were collected using seines 60 sites across Nicaragua, Costa Rica, and Panama during field expeditions conducted between 1997 2012. The preserved transported to lab, where their total weight ( W ) was measured (to nearest 0.0001 g) standard lengths tak...

• 1D and 3D nodalisations of the reactor core are compared for PWR LOCA scenarios. PCT generally significantly lower than multi-channel models. CCFL behaviour at upper tie plate explains many observed differences. Modern thermal-hydraulics (TH) systems analysis codes increasingly being updated to include three-dimensional (3D) TH components towards capturing complex flow phenomena in large ligh...