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Abstract  

The neutron temperature is a characteristic parameter in irradiation channels of reactor. For nuclides which have resonances in the thermal neutron energy range, their Westcott g-factors are different from unity. The values of g-factors and cross-sections of (n, γ) reaction of these nuclides are temperature dependence. The standard energy for tabulation of thermal neutron cross-section (σ0) is that of room temperature (293.59 K or 20.43 °C), corresponding to a neutron energy 0.0253 eV or to a neutron velocity of 2200 m/s. However, in the irradiation channels of reactor, the temperature is not exact at 20.43 °C. Thus, the temperature at the irradiation position must be known to convert σ0 to σ(T). A method for determination of the neutron temperature in irradiation channels of Dalat reactor is presented by fitting the thermal neutron spectrum obtained from the calculation using MCNP code.

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of the full dataset. Table 1 shows the characteristic parameters of the candidate driving cycles. Table 1. Characteristic parameters of the candidate driving cycles Parameter Full dataset DC1 DC2 DC3 DC4 DC5 DC6 DC7 DC8 DC9 DC10 v total (km

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application of feedback control model for various systems [ 13–16 ]. One of the merits of this technique is the ability to employ a new control Lyapunov function (CLF) for the selected control system that permits an analysis approach for the characteristics

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this expedient choice is that the characteristic parameters given by the solar cell data are most often determined for STC. The factor a ref in Eq. (3) and the factor Λ in Eqs (4) and (5) merely simplify the expression of the equations and can

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Pollack Periodica
Authors: Ali Kareem Abdulrazzaq, György Bognár, and Balázs Plesz

characteristics parameters shown previously in Table 1 . Table 2. Results of the parameter extraction proposed method of different irradiance conditions and different temperatures G (W/m 2 ) T (°C) δ R 2 MAPE% ACT (s) 200 25 0.053 0.99991 0.096 3.32 400

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this expedient choice is that the characteristic parameters given by the solar cell data are most often determined for STC. The factor a ref in Eq. (3) and the factor Λ in Eqs (4) and (5) merely simplify the expression of the equations and can

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; from 0.006 to 8 μg kg −1 for MGs; from 0.6 to 30 μg kg −1 for TCs; from 6 to 100 μg kg −1 for AB; from 0.006 to 10 μg kg −1 for ERY. Characteristic parameters for regression equations of the UPLC-MS/MS method obtained by least squares treatment of

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