The effects and influences of various parameters upon the efficiency and the overall volumetric mass transfer coefficients are important subjects to be studied in most liquid-liquid extraction processes. One of these important parameters is surface active agent (surfactant). In this paper, in order to study the effect of sodium dodecyl sulfate (SDS) concentration on the efficiency and the a...

it is firstly proved that the multi-input-single-output (miso) fuzzy systems based on interval-valued $r$- and $s$-implications can approximate any continuous function defined on a compact set to arbitrary accuracy.  a formula to compute the lower upper bounds on the number  of interval-valued fuzzy sets needed to achieve a pre-specified approximation  accuracy for an arbitrary multivariate con...

The aim of this paper is to present the implementation of the method for solving linear interval equations using the “interval extended zero” method and multimedia extensions. The “interval extended zero” method allows us to reduce the undesirable excess width effect. Its efficiency was proven before and here we show that it can be used to perform fast calculations using multimedia extensions. ...

all organizations have structure. researchers emphasized the importance of the organizational structure to achieve the goals and mission of an organization. thus performance assessment of organizing is essential for managers and decision makers to find weaknesses and eliminate them. organizations are designed by different methods and process, based on same principles and theories. in this study...

Unemployment is one of the most important economic problems in Iran, so that many of its managers plan to increase employment rates. Increasing the employment rate needs to increase economic productivity which DEA is one of the most appropriate evaluation methods for estimating the productivity of similar organizations. Employment in the amount of data input and output can be just interval. In ...

Production scheduling management is crucial for optimizing mine productivity. With the trend towards intelligent mines, a lean mode required to align with conditions. This paper proposes framework, based on short interval control as an effective tool adapt in underground mines. The framework shortens production monitoring and adjustment cycle near-real-time, enabling timely corrective measures ...

abstract: deficit irrigation technique can be used for produce more yield for every unit of irrigation water, and cause to increase crop economical benefit. main purpose of deficit irrigation is high water use efficiency with decreasing in irrigation sufficiency. in this research potential of cropwat model in deficit irrigation management for two crops, wheat and barley in karaj climate was stu...