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Geological work begins on Poland’s first nuclear plant
Project management firm Bechtel started site geological surveys for Poland’s first nuclear power plant project, the company announced on Wednesday.
Bechtel will conduct in-depth geological surveys at the Lubiatowo-Kopalino site in the Pomeranian municipality of Choczewo, in northern Poland. This is a key milestone for the country’s entry into nuclear power production, as the surveys will inform the suitability of the planned site.
Jinhui Liu, Fangyu Gu
Nuclear Technology | Volume 140 | Number 2 | November 2002 | Pages 164-168
Technical Paper | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies | doi.org/10.13182/NT02-A3330
Articles are hosted by Taylor and Francis Online.
This paper presents a new mass and energy estimating method for loose parts (LPs) combining the Karhunen-Loève (K-L) transform and neural network theories in the frequency domain. The detection of LPs was performed using simulated acoustic sensors mounted on the wall of a simulator of a reactor vessel. The impact events were simulated by simple pendulums. The data sampled in the time domain was changed to power spectral densities in the frequency domain using the fast Fourier transform. Then, the K-L transform was used to compress the original information. The final feature space's dimensions can be much less than the original ones. And, the original information remains as much as possible. The experiment showed that the impact characteristics of the LPs could be exactly depicted in the compressed feature space. The calculated mass values were approximately equal to the actual ones.