The hydrological processes that commonly occur within the sewer system i.e., rainwater percolation or groundwater infiltration, can be easily described applying water isotopes. This study investigates potential of tritium and stable isotope composition (δ 2 H δ 18 O) for tracing entering urban estimating amount. work consists collecting analyzing wastewater samples over a six-day-long period in...

A computer code ACUTRI has been developed to assess tritium doses to the general public. ACUTRI can calculate the doses for tritium gas (HT) and tritiated water (HTO) accidentally released from the facilities to the atmosphere. The models in this code consist of the tritium transfer model including oxidation of HT to HTO and reemission of HTO from soil to the atmosphere and the dose calculation...

The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to determine the effective mass of electron antineutrino by investigating tritium ?-spectrum close energetic endpoint. To achieve this, there are stringent and challenging requirements on stability gaseous source. loop system has task provide <0.1 % stabilized flow rate gas into KATRIN source with a throughput 40 g/day purity>95 %. started...

The World Ocean Circulation Experiment (WOCE) onetime hydrographic survey was aimed at the characterisation of the global distributions of properties for the purposes of describing and quantifying the large scale mean circulation and ventilation of the world’s oceans. Our role in WOCE was to determine distributions of tritium, 3 He and the light noble gases (He and Ne). The large number of samp...

Experimental values for the viscosity of radioactive hydrogen isotope tritium (T2) are currently unavailable in literature. The value this material property over a wide temperature range is interest applications fields fusion and neutrino physics, as well to test ab initio calculations. As gas, requires careful experiment design ensure safe environmental contamination–free measurements. In cont...

Dense self-supported Pd-alloy membranes are used to selectively separate hydrogen and hydrogen isotopes. In particular, deuterium (D) and tritium (T) are currently identified as the main elements for the sustainability of the nuclear fusion reaction aimed at carbon free power generation. In the fusion nuclear reactors, a breeding blanket produces the tritium that is extracted and purified befor...

1. The involvement of protein kinase C in the presynaptic modulation of stimulated acetylcholine release was investigated in rabbit hippocampus. 2. Slices of the rabbit hippocampus, labelled with [3H]-acetylcholine, were superfused with medium and stimulated electrically during superfusion. 3. The protein kinase C activating phorbol ester 4 beta-phorbol 12,13-dibutyrate (4 beta-PDB) enhanced th...

In this work the ensemble Kalman filter (EnKF) is applied to investigate the flow and transport processes at the macro-dispersion experiment (MADE) site in Columbus, MS. The EnKF is a sequential data assimilation approach that adjusts the unknown model parameter values based on the observed data with time. The classic advection–dispersion (AD) and the dual-domain mass transfer (DDMT) models are...

The proposal for tritium-suppressed D-D fusion and the understanding of the turbulent pinch in magnetically confined plasma are new developments in fusion science that create an alternate and potentially advantageous technology pathway. Tritiumsuppressed D-D fusion eliminates the need to breed fuel from lithium, reduces the damage from 14 MeV neutrons, and allows structural materials now qualif...