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Wyszukujesz frazę "Ekhosuehi, V." wg kryterium: Autor

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    Wyświetlanie 1-7 z 7
    Tytuł:
    Financing university education in Nigeria : a proposal for infrastructure replenishment in universities
    Autorzy:
    Ekhosuehi, V.
    Iguodala, W. A.
    Osagiede, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/406369.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    Hamilton–Pontryagin equation
    higher education
    optimal control theory
    replenishment
    university education
    Opis:
    The subject of replenishment of infrastructure in Nigerian public universities has been of great concern to stakeholders in the educational system. How to obtain an appropriate replenishment plan that would give the desired infrastructure for a university after a certain period of time is a long-standing problem. We attempt to find a solution to this problem from an engineering perspective based on optimal control theory. The revenue generated through the payment of school fees and the costs of investment in infrastructure are used to construct the objective function. The state variables are the amount budgeted for such an investment and the stock of infrastructure, while the rate of replenishment is used as the control variable. The problem is solved by utilising Pontryagin’s principle. The dynamics of the replenishment plan is illustrated with an example. The results show that there should be a steady increase in the amount budgeted, in order to attain the desired infrastructure.
    Źródło:
    Operations Research and Decisions; 2016, 26, 4; 33-47
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the one-shot two-person zero-sum game in football from a penalty kicker’s perspective
    Autorzy:
    Ekhosuehi, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/406567.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    linear programming
    mixed strategy
    penalty
    kick
    strategic game
    two-person zero-sum game
    Opis:
    A penalty kicker’s problem in football has been modelled. The study took into consideration different directions in which the ball can be struck and goalkeepers’ success at defending shots. The strategic form of the game that can be used to predict how the kicker should optimally randomise his strategies has been modelled as a non-linear game-theoretic problem from a professional kicker’s viewpoint. The equilibrium of the game (i.e., the pair of mutually optimal mixed strategies) was obtained from the game-theoretic problem by reducing it to a linear programming problem and the two-phase simplex method was adopted to solve this problem. The optimal solution to the game indicates that the kicker never chooses to kick the ball off target, to the goalpost or to the crossbar, but rather chooses to kick the ball in the opposite direction to the one where the goalkeeper is most likely to successfully defend from past history.
    Źródło:
    Operations Research and Decisions; 2018, 28, 3; 17-27
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of the optimal exchange rate via control of the domestic interest rate in Nigeria
    Autorzy:
    Ekhosuehi, V. U.
    Ogbonmwan, S. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/406440.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    balance-of-payments
    domestic interest rate
    exchange rate
    optimal control theory
    statistical control
    Opis:
    An economic scenario has been considered where the government seeks to achieve a favourable balance-of-payments over a fixed planning horizon through exchange rate policy and control of the domestic interest rate. The dynamics of such an economy was considered in terms of a bounded optimal control problem where the exchange rate is the state variable and the domestic interest rate is the control variable. The idea of balance-of-payments was used as a theoretical underpinning to specify the objective function. By assuming that, changes in exchange rates were induced by two effects: the impact of the domestic interest rate on the exchange rate and the exchange rate system adopted by the government. Instances for both fixed and flexible optimal exchange rate regimes have been determined. The use of the approach has been illustrated employing data obtained from the Central Bank of Nigeria (CBN) statistical bulletin.
    Źródło:
    Operations Research and Decisions; 2014, 24, 1; 23-36
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On population dynamics with campaign on contraception as control strategy
    Autorzy:
    Ekhosuehi, V. U.
    Chete, F. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2052396.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
    Tematy:
    contraception
    logistic model
    Malthusian model
    optimal control model
    population
    antykoncepcja
    model logistyczny
    model maltuzjański
    model sterowania
    populacja
    Opis:
    This work considers a population divided into two groups according to the adoption of contraception. The campaign in favour of contraception is modelled as a bounded optimal control problem within the framework of the logistic and the Malthusian models of population dynamics. The control is the fraction of non-adopters successfully educated on contraception. The objective is to maximise the number of non-adopters successfully educated on contraception over time. The optimisation problem is solved using the Pontryagin's maximum principle and the parameters of the model are estimated using the method of least squares.
    Źródło:
    Journal of Mathematics and Applications; 2018, 41; 63-79
    1733-6775
    2300-9926
    Pojawia się w:
    Journal of Mathematics and Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the evolution of academic staff structure in a university setting
    Autorzy:
    Ekhosuehi, V. U.
    Powiązania:
    https://bibliotekanauki.pl/articles/357710.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
    Tematy:
    diagonalisable matrices
    eigenvalues
    linear mapping
    manpower planning
    recurrence system
    diagonalizacja
    macierz
    wartości własne
    mapowanie liniowe
    planowanie siły roboczej
    system rekurencyjny
    Opis:
    This paper models the academic staff structure in a university as a system of stocks and flows in a three-dimensional space, R3. The stocks are the number of academic staff in a particular state at a given time and the flows are the staff moving between any two states over an interval of time. The paper places emphasis on the grade-specific completion rates of Graduate Assistants, who choose to study in the university in which they are employed for higher degrees. The study describes the evolution of structures in the university as a linear recurrence system. Some aspects of linear algebra are employed as a theoretical underpinning to gain insights into the transformation matrix of the recurrence system. A number of resulting propositions are presented along with their proofs. We provide two theorems to serve as a means of predicting a university manpower structure. Following that a numerical illustration of the theorems and propositions is provided with data which are representative of the kind of data in a Nigerian university system.
    Źródło:
    Journal of Mathematics and Applications; 2016, 39; 47-58
    1733-6775
    2300-9926
    Pojawia się w:
    Journal of Mathematics and Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the state of budgetary balance over time via the one-way classification model
    Autorzy:
    Ekhosuehi, V. U.
    Oyegue, F. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/406496.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    budget
    expenditure
    fixed effects
    one-way classification model
    zero-sum constraint
    Opis:
    A study on the state of budgetary balance over time in an economy has been conducted. The planned revenues and expected expenditures contained in the budget statements over the years are used as economic instruments for the study. The one-way classification model in statistical theory is used as the theoretical underpinning to describe the budget equation. The economic implications of the signs of the fixed effects in the model are stated.
    Źródło:
    Operations Research and Decisions; 2015, 25, 3; 5-16
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A theoretical framework for determining the appropriate level of subsidy in an economy
    Autorzy:
    Osagiede, A. A.
    Ekhosuehi, V. U.
    Powiązania:
    https://bibliotekanauki.pl/articles/406643.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    entropy
    Markov process
    per capita income
    subsidy
    Opis:
    A framework has been developed for determining the subsidy that, in the long run, serves to equalize the per capita income shares across income classes. The framework characterizes the income dynamics by the Markov process and uses the principle of maximum entropy for selecting among alternative subsidy schemes. The study provides a means to forecast the per capita income shares at any instant of time and serves as an objective tool to decide on the appropriate level of subsidy.
    Źródło:
    Operations Research and Decisions; 2015, 25, 2; 19-35
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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