abstract the use of water sources has increased due to extend of agricultural activity for answering food needs of increasing population. while because of exploitation and consumption of water, the use of this restricted resource is not appropriate. consequently in many districts of country the head level of ground water aquifers have been fallen and water level is negative. so, application of ...

economists were interested in economic stabilization policies as early as the 1930’s but the formal applications of stability theory from the classical control theory to economic analysis appeared in the early 1950’s when a number of control engineers actively collaborated with economists on economic stability and feedback mechanisms. the theory of optimal control resulting from the contributio...

Centralizing and using proper transportation facilities cut down costs and traffic. Hub facilities concentrate on flows to cause economic advantage of scale and multimodal transportation helps use the advantage of another transporter. A distinctive feature of this paper is proposing a new mathematical formulation for a three-stage p-hub location routing problem with simultaneous pick-ups and de...

Cumulative Count of Conforming (CCC) charts are utilized for monitoring the quality characteristics in high-quality processes. Executive cost of control charts is a motivation for researchers to design them with the lowest cost. Usually in most researches, only one objective named cost function is minimized subject to statistical constraints, which is not effective method for economic-statistic...

Control charts are the most important tools of statistical process control used to discriminate between assignable and common causes of variation and to improve the quality of a process. To design a control chart, three parameters including sample size, sampling interval, and control limits should be determined. The objectives are hourly expected cost, in-control average run length, power of th...

The permanent magnet synchronous motor (PMSM) has been widely used in the field of ship electric propulsion due to its advantages a small size, light weight, low loss, and high efficiency. In this paper, 100 kW ship-side thruster was taken as research object, problem harmonic content air gap magnetic flux density addressed by designing rotor eccentricity. On basis, hybrid Taguchi method genetic...

By accounting for limited human computational ability, willpower, and rationality within economic models, work in behavioral economics has highlighted the ways in which individuals’ choices may systematically deviate from their own best interest. As a result, policymakers have considered any number of paternalistic policies (both overt taxes and restrictions, or more subtle “nudges”) to move in...