We propose two-dimensional representations for the efficient frontier two different Network DEA (NDEA) models. Both follow a previous study that developed generalization of representation method classic using new form linearization. The graphical allows managers and decision-makers unfamiliar with linear programming to understand results obtained simply clearly. In this study, we can obtain gra...

the purpose of this paper is to present a 2d depth-averaged model for simulating and examining unsteady flow patterns in open channel bends. in particular, this paper proposes a 2d depth-averaged model that takes into account the influence of the secondary flow phenomenon through calculation of the dispersion stresses. the dispersion terms which arose from the integration of the product of the ...

Three-factor interaction for the two-level, three-level, and four-level factorial designs was studied. A new technique and formula based on the coefficients of orthogonal polynomial contrast were proposed to calculate the effect of the three-factor interaction The results show that the proposed technique was in agreement with the least squares method. The advantages of the new technique are 1) ...

We describe a practical method for constructing axisymmetric two-integral galaxy models (with distribution functions of the form f (E, L z), in which E is the or-bital energy, and L z is the vertical component of the angular momentum), based on Schwarzschild's orbit superposition method. Other f (E, L z)-methods are mostly based on solving the Jeans equations or on finding the distribution func...

We build two inverse limit lambda models which characterize completely sets of terms having similar computational behaviour. More precisely for each one of these sets of terms there is a corresponding element in at least one of the two models such that a term belongs to the set if and only if its interpretation (in a suitable environment) is greater than or equal to that element. This is proved...

This paper develops two game-theoretic models of litigation, pleading, and settlement. The first model explores the timing of settlement and the strategic use of pleading by plaintiffs with negative-expectedvalue claims in a full-information environment. The second model explores the timing of settlement and strategic use of pleading in an environment with private information held either by pla...