Temat: empirical characteristics - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Empirical analysis of food security status of agricultural households in the Platinum province of South Africa
Autorzy:: Ijatuyi, E.J.
Omotayo, A.O.
Nkonki-Mandleni, B.
Powiązania:: https://bibliotekanauki.pl/articles/43872.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:: North West province
Platinum province zob.North West province
South Africa
empirical analysis
food security
agriculture
household
rural farm
logistic regression
probit model
data analysis
respondent
socio-economic characteristics
Źródło:: Journal of Agribusiness and Rural Development; 2018, 47, 1
1899-5241
Pojawia się w:: Journal of Agribusiness and Rural Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Identification of unmeasured variables in the set of model constraints of the data reconciliation in a power unit
Autorzy:: Szega, M.
Nowak, G. T.
Powiązania:: https://bibliotekanauki.pl/articles/240163.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: mathematical modeling
empirical characteristics
data reconciliation
modelowanie matematyczne
charakterystyka empiryczna
rachunek wyrównawczy
Opis:: In generalized method of data reconciliation as equations of conditions beside substance and energy balances can be used equations which don't have precisely the status of conservation lows. Empirical coefficients in these equations are traded as unknowns' values. To this kind of equations, in application of the generalized method of data reconciliation in supercritical power unit, can be classified: steam flow capacity of a turbine for a group of stages, adiabatic internal efficiency of group of stages, equations for pressure drop in pipelines and equations for heat transfer in regeneration heat exchangers. Mathematical model of a power unit was developed in the code Thermoflex. Using this model the off-design calculation has been made in several points of loads for the power unit. Using these calculations identification of unknown values and empirical coefficients for generalized method of data reconciliation used in power unit has been made. Additional equations of conditions will be used in the generalized method of data reconciliation which will be used in optimization of measurement placement in redundant measurement system in power unit for new control systems.
Źródło:: Archives of Thermodynamics; 2013, 34, 4; 235-245
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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