Calculations of track parameters and plots of track openings and wall profiles in CR39 detector
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Nuclear track
The article improves the traditional solid state nuclear track detector(SSNTD) by adding the electrostatic collection system.Thus the detector's measurement time will be reduced.At the same time,it finds that the new detector can provide exactly concentration of radon in a short time when compares with the detector without the electrostatic collection system.So the new detector has a practical applied importance.
Nuclear track
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: 15.1. Measurement of Track Geometry 15.2. Track Settlement 15.3. Track Geometry 15.4. Track Quality 15.5. Inherent Track Shape 15.6. Improving the Inherent Shape of Track 15.7. Benefits from Good Inherent Quality Track 15.8. Achieving Good Inherent Quality Track 15.9. Conclusions
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Fast track
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V-detector algorithm is unable to guarantee a large coverage for generated detector.The shortcoming usually results in a large number of detectors in the detector sets and low detection efficiency.An optimized V-detector algorithm was proposed.In the optimized algorithm,a detector was generated on the basis of a randomly chosen uncovered non-self sample,and the detector generation process ensured the detector covered the non-self sample and extended the detector's coverage by determining the detector's center and detection radius reasonably.Meanwhile,hypothesis testing process was used to estimate the coverage of a detector set,and hypothesis testing process was integrated with detector generation process to ensure the generated detector set fully covered the non-self region,and reduced the number of detectors in the detector set.Experimental results indicate that compared with the V-detector algorithm,the optimized algorithm generates a much smaller detector set and increases the detection efficiency.
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Nuclear track
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CR-39
Nuclear track
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Nuclear track
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The paper is focused on different aspects of track dynamics and train-track interaction. The dynamic modeling of railway track response and of the interaction of vehicle and track at low and mid frequencies, that are significant for the track deterioration, is presented. Dynamic properties of the track structure as a whole is described and evaluated including the dynamics of compound train-track system. The dynamic amplification resulting from the simulated passage of the locomotive of the type E 499.0 (85t) is presented.
Fast track
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Spectrum analyzer is one of the radio frequency measuring instruments in common use.Appropriate detector types should be chosen to analyze and measure a variety of signals to show their characteristics correctly,the results would be inaccurate or absolutely wrong when inappropriate detector types are chosen.Various kinds of detector types of spectrum analyzer are introduced,the features and applications of sample detector,max peak detector,min peak detector,auto peak detector,normal detector,average detector,RMS detector and quasi-peak detector are analyzed in detail,the differences among them are concluded.
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