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Wyszukujesz frazę "Keshavarz, Mohammad Hossein" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
A Novel Approach for the Prediction of Electric Spark Sensitivity of Polynitroarenes Based on the Measured Data from a New Instrument
Autorzy:
Keshavarz, Mohammad Hossein
Powiązania:
https://bibliotekanauki.pl/articles/358523.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
electric spark sensitivity
RDAD
ESZ KTTV
polynitroarene
correlation
Opis:
This paper introduces two novel correlations for the assessment of the electric spark sensitivity of polynitroarenes based on a new instrument, marked as ESZ KTTV, which gives more reliable experimental data than a previous old system, marked as RDAD. The first correlation used the number of oxygen and chlorine atoms, as well as a correcting function that increases the predicted results based on elemental composition. Since the relationship between the measurements from ESZ KTTV and RDAD is not unequivocal, a second correlation can convert the reported data based on the RDAD system to the ESZ KTTV instrument. The second correlation can be applied to many available predictive methods, and provides the estimated results based on the RDAD instrument. For 34 polynitroarenes, where experimental values from both the RDAD and the ESZ KTTV instruments were available, the values of the root-mean-square deviation (RMSD) for the first and second correlations were 43.9 mJ and 36.0 mJ, respectively. Thus, due to the larger uncertainty in the measured data of the old RDAD system, both correlations provide more reliable data based on the ESZ KTTV instrument.
Źródło:
Central European Journal of Energetic Materials; 2019, 16, 1; 65-76
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the Thermal Decomposition Temperature of High-Energy Heterocyclic Aromatic Compounds in Order to Increase Their Safety during Storage, Handling and Application
Autorzy:
Keshavarz, Mohammad Hossein
Mousavi, Sajjad
Drikvand, Masoumeh
Powiązania:
https://bibliotekanauki.pl/articles/27788075.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
thermal decomposition temperature
heterocyclic aromatic compound
molecular structure
correlation
safety aspect
Opis:
Heterocyclic aromatic compounds containing various derivatives of five or six-membered nitrogen-containing rings, viz. triazoles, tetrazoles, furazans, triazines, and tetrazines, and some of their salts have been studied. High nitrogen content and a large positive heat of formation are two important properties of these compounds. Two new models are introduced for the reliable prediction of the thermal stability of these compounds through the thermal decomposition temperature (onset). The reported data for 181 compounds have been used to derive and test the new models. For a training set containing 132 heterocyclic aromatic compounds, the values of the average absolute deviation (AAD) and the coefficient of determination (R2) of the improved correlation were 9.72 K and 0.959, respectively. For triazoles, tetrazoles, furazans, triazines, and tetrazines, the predicted results of ADD and R2 for the external test data set for this model containing 41 compounds were 23.03 K and 0.664, respectively, which are closer to experimental data than those obtained by the core correlation, i.e. 26.49 K and 0.653, respectively. The correlation coefficients of cross-validation for leave-one-out (Q2LOO) and 5-fold (Q25CV) of the improved correlation were 0.955 and 0.951, respectively, which confirm that it is not an over-fitted model, robust and well-behaved.
Źródło:
Central European Journal of Energetic Materials; 2022, 19, 1; 39--62
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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