simulation of turbulence boiling, generation of vapour and predication of its behaviour are still subject to debate in the two-phase flow area and they receive a high level of worldwide attention. in this study, a new arrangement of the three dimensional governing equations for turbulence two-phase flow with heat and mass transfer are derived by using ensemble averaging two-fluid model and util...

We describe a method for determining glucose in serum with glucose dehydrogenase immobilized on the inner walls of glass tubes. The reactor was incorporated into a channel of a continuous-flow analyzer (the Technicon SMAC) and used daily for four weeks in routine analysis for serum glucose. During this period we tested the linearity, precision, accuracy, and durability of the reactor. Results c...

An in-situ EXAFS method is developed to study the nucleation and growth processes of nanocrystals by using a microfluidic reactor which converts the time-dependent kinetics to position-dependence. As an example, we measured the Se K-edge EXAFS spectra for CdSe nanocrystals along a microfluidic reactor channel and indicated strong timedependence of the nucleation and growth at the beginning of t...

Tentative design and implementation of an irradiation facility are described, which will add a 14 MeV component to the neutron spectrum in a thermal research reactor irradiation facility. The idea is to exploit the Li(n,T)He reaction in a blanket of lithium in a deuterated environment, placed in a thermal reactor irradiation channel. Existing literature describing similar devices is reviewed, t...

The robustness of the control strategies developed in the COST 624 benchmark have been tested against the sophistication of the model describing the hydraulic behaviour of the biological reactor of a wastewater treatment plant by activated sludge. In such a large biological reactor of the channel type, hydrodynamics are intermediate between plug flow and well-mixed and are function of the liqui...

Although crucial for resolving the issue of charge symmetry in the nuclear force, direct measurement of nn-scattering by colliding free neutrons has never been performed. At present the Russian pulsed reactor YAGUAR is the best neutron source for performing such a measurement. It has a through channel where the neutron moderator is installed. The neutrons are counted by a neutron detector locat...

A multi-channel continuous-flow ana]yzer equipped with biosensing deyices was deyeloped for multicomponent measurement and its use in automating routine analysis was evaluated. Biosensing was achieyed by the aid of an immobilized enzyme reactor insta]led in the channel, and the channe] switching process for the sensing of a different compound was made by using a column-switching rotary valve. A...

The development of First Wall, Blanket and Divertor materials which are capable of withstanding many years the high neutron and heat fluxes, is a critical path to fusion power. Therefore, the timely availability of a sound materials database has become an indispensable element in international fusion road maps. In order to provide materials design data for short term needs of ITER Test Blanket ...

At the ENEA TRIGA research reactor (Casaccia Research Center, Rome), a new neutron collimator has been designed and installed at the neutron tangential channel. This collimator, that is part of a neutron/X-ray facility for NDT analysis, was experimentally characterized and optimized in terms of thermal neutron flux, its spatial/energetic distribution, photon air KERMA and effective beam diamete...