Results 1 - 10 of 148121
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[en] The design claimed avoid clogging the extractor by solids which are collected in a conical decantation chamber. Application is made to the separation of the aqueous nitric solution, the organic phase of TBP diluted by an aliphatic hydrocarbon and heavy solid particles during spent fuel reprocessing
[fr]Cet extracteur permet l'evacuation des depots solides contenus dans les phases liquides a separer grace a une chambre de decantation conique. Application a la separation des phases aqueuses d'acide nitrique et organique de TBP dilue dans un hydrocarbure, au cours du retraitement des combustibles nucleaires, les depots solides etant elimines
[en] Sidestream recycle combined with sidestream equilibration is important for hydrogen isotopic distillation processes because it offers a means to reduce the number of columns required for the extraction of pure homonuclear species. This directly implies simpler systems, reduced control problems, and reduced material inventories. Measurements were recently completed for a single distillation column using feed compositions and product flows similar to those expected in an ITER type device, i.e. ∼50-50 D-T and recycle of an equilibrated sidestream withdrawn from the column. Dynamic studies were conducted with flowrates changing as might be expected for typical Tokamak operations. These were compared with computer simulations of the dynamic process. From these comparisons the computer model was validated. The impact of this and previous sidestream recycle studies on the design of future separation systems is presented and discussed, especially with respect to tritium inventory, dynamic performance, stability, and system control
[en] A device to change the isotopic composition of a substance is claimed. It comprises: means to sputter material from the surface of the substance, separate means to renew the surface of the substance to minimise any enrichment of the surface, means to contain the substance, and means to collect the sputtered material
[en] At the ENC '79/Foratom VII-Conference in Hamburg - a meeting of international experts, which was influenced by the Infence-activities, the Non-Proliferation policies and political restrains - the contributions concerning the nuclear fuel cycle took a wide place, as well at the plenary sessions as the specialized reports. Restrictions of promising projects inside the nuclear fuel cycle were obvious, due to the uncertainties of the further use of nuclear energy. (orig.)
[de]Bei der ENC '79/Foratom VII-Konferenz in Hamburg nahmen im Rahmen einer internationalen Szene, deren Highlights von den Infence-Aktivitaeten, der Nonproliferation-Politik und erschwerenden politischen Einfluessen gepraegt waren, die Beitraege zum Thema Kernbrennstoffkreislauf sowohl bei den Plenarsitzungen als auch in den kurzen Fachvortraegen einen breiten Raum ein. Es wurde deutlich, dass die Verunsicherung ueber den weiteren Verlauf der Kernenergienutzung auch aussichtsreichen Projekten innerhalb des Kernbrennstoffkreislaufs ihren Stempel aufdrueckt. (orig.)
[en] Concentration data collected from the 2013 H-Canyon effluent reprocessing experiment were reanalyzed to improve the source term estimate. When errors in the model-predicted wind speed and direction were removed, the source term uncertainty was reduced to 30% of the mean. This explained the factor of 30 difference between the source term size derived from data at 5 km and 10 km downwind in terms of the time history of dissolution. The results show a path forward to develop a sampling strategy for quantitative source term calculation.
[en] Development of normative documents connected with nanotechnologies application in oil extraction requires necessity of accounting the peculiarity of adoption of these technologies. For example, conditions of object application, physical-chemical parameters of used nanosubstances and nanocomposites as well as some anomalies of rheological properties of nanosolutions can be referred to such ones. One of such anomalies is ambiguity of distribution laws of various rheological parameters at selected data at different experiment conditions, which on distribution diagrams are expressed by characteristic concavity in the area of lowest concentrations (up to 0,001%) of nanopowders.
[en] This communication addresses real-time weapon classification by analysis of asynchronous acoustic data, collected from microphones on a sensor network. The weapon classification algorithm consists of two parts: (i) feature extraction from time-series data using symbolic dynamic filtering (SDF), and (ii) pattern classification based on the extracted features using the language measure (LM) and support vector machine (SVM). The proposed algorithm has been tested on field data, generated by firing of two types of rifles. The results of analysis demonstrate high accuracy and fast execution of the pattern classification algorithm with low memory requirements. Potential applications include simultaneous shooter localization and weapon classification with soldier-wearable networked sensors. (rapid communication)