2. Nuclear fuel consists of fuel pins that are stacks of uranium oxide or mixed uranium plutonium oxide (MOX) cylindrical ceramic pellets, with diameters of 8–15 mm, that are encapsulated in metallic tubes. The fuel pins are grouped together in fuel assemblies. Each fuel assembly can be handled as a single entity, thus simplifying the fuelling and defuelling of reactors and the subsequent handl...

Sweden has been intensively developing methods for long-term storage of spent fuel from nuclear power plants for twenty-five years. A dedicated research program has been initiated and managed by the Swedish company SKB (Swedish Nuclear Fuels and Waste Management Co.) in collaboration with many research groups in different countries. After the interim storage, SKB plan to encapsulate the spent n...

An isotopic fingerprinting method is presented to determine the origin of unknown nuclear material with forensic importance. Spent nuclear fuel of known origin has been considered as the 'unknown' nuclear material in order to demonstrate the method and verify its prediction capabilities. The method compares, using factor analysis, the measured U, Pu isotopic compositions of the 'unknown' materi...

The article deals with the influence of road conditions on fuel consumption by vehicles when transporting goods and passengers, which depends speed movement. optimum corresponds to movement is distinctive for each type car. Increase or decrease leads increased consumption. Elevations reduce increase up 30%. Road (width roadway, condition surface, presence horizontal curves, longitudinal slopes,...

As vehicles become more fuel-efficient and overall levels of travel stagnate in response to increases in fuel prices, conventional sources of revenue for transportation finance such as taxes on motor fuels have been put under increasing pressure. One potential replacement as a source of revenue is a set of policies collectively referred to as value capture policies. In contrast to fuel taxes an...