A multi-product fish production planning produces simultaneously multi fish products from several classes of raw resources. The goal in production planning is to meet customer demand over a fixed time horizon divided into planning periods by optimizing the trade-off between economic objectives such as production cost and customer satisfaction level. The major decisions are production and invent...

pistachio is a major agricultural export commodity in iran. nowadays, it ranks first among iran’s agricultural exports. this paper focuses on the comparative advantage in pistachio production and the export market in iran. a policy analysis matrix (pam) framework and revealed comparative advantage (rca) index are applied to 2000-2004 data to study iranian government policy regarding pistachio p...

quantitative analysis of production through evaluation of inputs consumption quantity is of main principles in agricultural policies, which is followed by increasing in production through optimal use of resources. this study has been conducted to estimate different types of production functions in mechanized farms of broiler chicks located in gorgan city. cross-section survey data were gathered...

In this paper, an extended economic production quantity (EPQ) model is investigated, where demand follows a random process. This study is motivated by an industrial case for precision machine assembly in the machinery industry. Both a positive resetup point s and a fixed lot size Q are implemented in this production control policy. To cope with random demand, a resetup point, i.e., the lowest i...

This paper examines the process of outsourcing manufacturing to cost-efficient and innovative suppliers in support of internal core competencies. A framework that links the phases of the entire outsourcing process to strategic planning is presented. The framework includes a logical sequence of key activities with built-in performance measures and expected output for each of the phases. In addit...

this research presents a new application of the cloud theory-based simulated annealing algorithm to solve mixed model assembly line sequencing problems where line stoppage cost is expected to be optimized. this objective is highly significant in mixed model assembly line sequencing problems based on just-in-time production system. moreover, this type of problem is np-hard and solving this probl...

in this paper a non linear integrated fuzzy multi-objective production planning model with the labor learning and machines deterioration effects is presented. the objective function consists of two quantitative objectives namely increase profits and reduces the cost of system failure and a qualitative objective namely increases the satisfaction rate of the customers. different weights for objec...

abstract a quantitative framework of combination of liner programming and cooperative game theory was used in this study to analyze and model cooperative contracts in production based on rural households' resources cooperation in firoozabad plain. revenues and costs in cooperation game theory have important rule to get agreement. transaction cost function was used in cooperative costs accountin...

This study was conducted on 84 patients of anxiety neurosis selected according to stringent selection criteria, PSE scale was utilised for eliciting information regarding experience of life events during life time and past 6 months. Life time stress score correlated positively with Hamilton anxiety score, while family jointness, social support and socio-economic status correlated negatively wit...