Temat: non-parametric model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of human capital on agricultural productivity in Senegal
Autorzy:: Ndour, Cheikh Tidiane
Powiązania:: https://bibliotekanauki.pl/articles/1182819.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Human capital
agricultural productivity
non-parametric model
production function
tobit model
Opis:: To feed the African’s population from a strong agriculture able to fight food insecurity requires to increase the level of human capital operators (education, training and experience). This study aims to analyze the effects of human capital on the efficiency and productivity of farmers. Using stochastic frontier model and simple Tobit, we examined the impact of human capital on agricultural productivity of 183 operators spread over three communes (Diama and Ronkh Gandon) of Senegal River valley. The results from the estimates show that human capital affects positively and significantly the productivity. These results imply that improving the level of education and experience is likely to increase yields and to make them more efficient
Źródło:: World Scientific News; 2017, 64; 34-43
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Non-linear model of the N2-laser excitation circuit
Autorzy:: Niewierowicz, T.
Kawecki, L.
La Rosa, J.
Powiązania:: https://bibliotekanauki.pl/articles/205734.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: identyfikacja parametryczna
laser
model nieliniowy
lasers
non-linear models
parametric identification
Opis:: This paper presents a non-linear model of the Blumlein circuit for the excitation of an N2-laser that leads to a high order integer-differential equation system where each of the two discharges (the spark gap and the laser chamber) taking place in the circuit are simulated by an inductance and a resistance connected in series. The inductance and the resistance of each loop are considered current dependent and their time behaviour is found by means of a parametric identification method based on the voltages measured in the charge capacitors. A comparison between two representations of the induced emf in the different loops of the circuit is used. The first one is based on the dynamical (or derivative) inductivity and the second one on the statical (or integrative) inductivity. A Gauss-Seidel algorithm for the parametric identification was used.
Źródło:: Control and Cybernetics; 2001, 30, 2; 177-189
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

Artykuł

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