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Beta-backscattering Thickness-meter Design and Evaluation with Fuzzy TOPSIS Method

100%
Arjhangmehr A., Mohammadzadeh M., Hossein Feghhi S. A., Hassanpour S. T.
Nukleonika
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2014
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vol. 59
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issue 2
53-59
EN
An industrial gauge for measuring thickness of a gold coating layer deposited on a steel base through detection of the backscattered beta particles has been described. 3H, 14C and 63Ni pure beta emitters have been tested as the radioisotopic sources of the system individually in a fixed geometry. Analytical calculations have been performed in each case. Furthermore, simulations based on Monte Carlo stochastic technique (MCNP) have been processed. The obtained results from both methods have been compared to define the sensitivity of the system in each case. Finally for the first time, fuzzy TOPSIS method has been used for choosing the best source in the defined geometry for manufacturing, considering the following three criteria: (a) saturation thickness, (b) precision and (c) sensitivity. Results have shown that 3H source is the best alternative to the introduced measuring system.
2
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Comparison of a New Test For Agility and Skill in Soccer With Other Agility Tests

75%
Kutlu M., Yapıcı H., Yoncalık O., Çelik S.
Journal of Human Kinetics
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2012
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vol. 33
143-150
EN
The purpose of this study was both to develop a novel test to measure run, shuttle run and directional change agility, and soccer shots on goal with decision making and to compare it with other agility tests. Multiple comparisons and assessments were conducted, including test-retest, Illinois, Zig-Zag, 30 m, Bosco, T-drill agility, and Wingate peak power tests. A total of 113 Turkish amateur and professional soccer players and tertiary-level students participated in the study. Test-retest and inter-tester reliability testing measures were conducted with athletes. The correlation coefficient of the new test was .88, with no significant difference (p> 0.01> 0.01) between the test results obtained in the first and second test sessions. The results of an analysis of variance revealed a significant (p < 0.01) difference between the T-drill agility and power test results for soccer players. The new agility and skill test is an acceptable and reliable test when considering test-retest reliability and inter-rater reliability. The findings in this study suggest that the novel soccer-specific agility and shooting test can be utilized in the testing and identification of soccer players' talents.
3
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An integrated approach for improving tool provisioning efficiency

71%
Denysenko Y., Ivanov V., Luscinski S., Zaloga V., Denysenko Y., Ivanov V., Luscinski S., Zaloga V.
Management and Production Engineering Review
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2020
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vol. 11
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issue 4
4
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An optimum scheduling method for multi-option product flows through production lineswithout intermediate buffers

71%
Magiera M., Magiera M.
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