Search Results - subject:"MATHEMATICAL MODEL"

Pension fund state estimation and optimal investment strategy

Lešek, Marek; Šimandl, Miroslav - In: Bulletin of the Czech Econometric Society 12 (2005)

A design and utilization of a mathematical model of the contribution defined pension fund is treated. The mathematical … of the new mathematical model is partly immeasurable. The immeasurable part of the state is estimated by the extended … model respects the specific character and economical rules of supplementary pension system in the Czech Republic. The state …

Persistent link: https://www.econbiz.de/10008528802

Socio-economic change and evolution of cultural models of reproduction in Ghana: implications for population policy.

Y, Ofosu - International Labour Organization (ILO), United Nations - 1993

Based on data from the 1979-80 Ghana Fertility Survey and the 1988 Ghana Demographic and Health Survey.

Persistent link: https://www.econbiz.de/10010966808

Using WGENK to generate synthetic daily weather data for modelling of agricultural processes

Kuchar, Leszek - In: Mathematics and Computers in Simulation (MATCOM) 65 (2004) 1, pp. 69-75

In the paper, the weather generator WGENK producing synthetic daily data of solar radiation, maximum and minimum temperature, and total precipitation is presented. A WGENK model, modification of WGEN model, introduces annual courses of transition probability, α parameter of Γ distribution, and...

Persistent link: https://www.econbiz.de/10011050166

Heat transfer dynamics in an inflatable-tunnel solar air heater

Flores-Irigollen, A.; Fernández, J.L.; Rubio-Cerda, E.; … - In: Renewable Energy 29 (2004) 8, pp. 1367-1382

A mathematical model that describes the dynamics of the heat transfer in an inflatable-tunnel solar collector for air …

Persistent link: https://www.econbiz.de/10011045249

Mathematical model of a PEM fuel cell incorporating CO poisoning and O>SUB align=right>>SMALL>2>/SMALL>>/SUB> (air) bleeding

Baschuk, J.J.; Li, Xianguo - In: International Journal of Global Energy Issues 20 (2003) 3, pp. 245-276

A one-dimensional mathematical model has been developed for a fully hydrated and isothermal PEM fuel cell. Mass …

Persistent link: https://www.econbiz.de/10005543652

A mathematical model of thermal performance of a solar air heater with slats

Ammari, H.D. - In: Renewable Energy 28 (2003) 10, pp. 1597-1615

A mathematical model for computing the thermal performance of a single pass flat-plate solar air collector is presented … the bottom one in an endeavor to enhance the thermal efficiency of the solar air collector. A mathematical model …

Persistent link: https://www.econbiz.de/10010807224

About discrete hedging and option pricing

Yakovlev, Dmitry; Zhabin, Dmitry - EconWPA - 2003

The approach that allows find European option price on the assumption of hedging at discrete times is proposed. The routine allows find the option price not for lognormal distribution functions of underlying asset only but for other classes of distribution functions too. It is shown that there...

Persistent link: https://www.econbiz.de/10005077003

Mathematical model of a PEM fuel cell incorporating CO poisoning and O<SUB align=right><SMALL>2</SMALL></SUB> (air) bleeding

Baschuk, J.J.; Li, Xianguo - In: International Journal of Global Energy Issues 20 (2003) 3, pp. 245-276

A one-dimensional mathematical model has been developed for a fully hydrated and isothermal PEM fuel cell. Mass …

Persistent link: https://www.econbiz.de/10008539054

Group fusion: the impact of winner, loser, and bystander effects on hierarchy formation in large groups

Dugatkin, Lee Alan; Earley, Ryan L. - In: Behavioral Ecology 14 (2003) 3, pp. 367-373

We present the results of a series of computer simulations that examined the impact of winner, loser, and bystander effects on hierarchy formation in fused groups. These effects and their implications for hierarchy structure and aggressive interactions were first examined in small four-member...

Persistent link: https://www.econbiz.de/10008581783

Studies of interstate electric ties in Northeast Asia

Belyaev, L.S.; Chudinova, L. Yu.; Khamisov, O.V.; … - In: International Journal of Global Energy Issues 17 (2002) 3, pp. 228-249

; export power projects from Russia to other NEA countries are analysed and ranked by priority; the mathematical model for …

Persistent link: https://www.econbiz.de/10005543677