supplying required human resource is one of the strategic goals of an organization. therefore, organizations plan and predict the required human resources in order to prevent this problem. present study using practical approach seeks to assist organizations to achieve their various goals in human resources planning. the designed model in this study clarifies vague, inaccurate, and fuzzy express...

Introduction: Laparoscopic gastric plication (LGP) is a relatively new restrictive bariatric procedure that emerged to avoid the problems and to reduce the cost of laparoscopic sleeve gastrectomy. In this study we present the initial short-term outcome of LGP and its effect on gastric emptying and compare it with the results of laparoscopic sleeve gastrectomy (LSG). <stro...

abstract soil nutrient management with efficient fertilizer use has an important role on maximizing yield and environmental effects. in this study game theory is applied to identify the nutrient proportion for corn production in kooshkak in fars province, iran, in 2008-2009. cost of fertilizer combinations and production of corn are the players of the game. a goal programming was applied to obt...

determination a sequence of extracting ore is one of the most important problems in mine annual production scheduling. production scheduling affects mining performance especially in a poly-metallic open pit mine with considering the imposed operational and physical constraints mandated by high levels of reliability in relation to the obtained actual results. one of the important operational con...

OBJECTIVE Various different surgical methods are used for obesity surgery. Among them, laparoscopic sleeve gastrectomy (LSG) and laparoscopic gastric plication (LGP) have been both successfully performed in recent years. In this study, we compared the treatment results of patients who underwent LGP, a method that was introduced later consisting of plication of gastric greater curvature to achie...

A Geometric programming (GP) is a type of mathematical problem characterized by objective and constraint functions that have a special form. Many methods have been developed to solve large scale engineering design GP problems. In this paper GP technique has been used to solve multi-objective GP problem as a vector optimization problem. The duality theory for lexicographic geometric programming ...

The spatial distribution of crops and farming systems in Africa is determined by the duration of the period during which crop and livestock water requirements are met. The length of growing period (LGP) is normally assessed from weather station data—scarce in large parts of Africa—or coarse-resolution rainfall estimates derived from weather satellites. In this study, we analyzed LGP and its var...

0360-8352/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.cie.2012.08.005 ⇑ Corresponding author. Tel.: +886 3 2118800x3713 E-mail addresses: [email protected] (C.-T. (H.-M. Chen), [email protected], (Z.-Y. Zhuang). The multi-segment goal programming (MSGP) model is an extension model of GP wherein the core thinking is inherited from the multi-choice goal program...