This work develops a novel two-stage fuzzy optimization method for solving the multiproduct multi-period (MPMP) production planning problem, in which the market demands and some of the inventory costs are assumed to be uncertainty and characterized by fuzzy variables with known possibility distributions. Some basic properties about the MPMP production planning problem are discussed. Since the f...

In reliability, quality control and risk analysis, fuzzy methodologies are more and more involved and inevitably introduced difficulties in seeking fuzzy functional relationship between factors. In this paper, we propose a scalar variable formation of fuzzy regression model based on the credibility measure theoretical foundation. It is expecting our scalar variable treatments on fuzzy regressio...

This paper deals with improvement of superheated steam temperature fuzzy control of high-pressure part in once-through boiler. The improvement of fuzzy control quality is based on optimization of fuzzy controller parameters. The optimization is based on minimization criteria. Optimized fuzzy parameters are function of high pressure steam temperature. More possibilities of optimization are prese...

This paper presents a fuzzy extension of the simple assembly line balancing problem of type 2 (SALBP-2) with fuzzy job processing times since uncertainty, variability, and imprecision are often occurred in real-world production systems. The jobs processing times are formulated by triangular fuzzy membership functions. The total fuzzy cost function is formulated as the weighted-sum of two bi-cri...

nowadays balanced scorecard has a critical role in implementing strategies for many organizations. strategy map as the 3rd generation of bsc by inverting mission and vision into strategic objectives is the linkage between formulating and implementing strategies. however, the methodology of developing strategy maps has many ambiguities. this study with inspiring by other authors and exploring li...

Measurement of quality is an important task in the evaluation of agricultural products and plays a pivotal role in agricultural production. The inspection process normally involves a visual examination according to the ripeness standards of crops, and this grading is subject to expert knowledge and interpretation. Therefore, the quality inspection process of fruits needs to be conducted properl...

abstract background and purpose: since protein a is considered an important protein from medical, medicinal, genetic engineering, and biotechnology point of view, the present study attempted to investigate and determine to what extent protein a is produced through regression, in addition to the production conditions of the protein. thus, a figure was introduced as for the estimation of the amou...

A structured method is called quality function deployment (QFD) that translates the voice of the customer into both of the product and service development. The architecture of QFD is composed of a set of matrices that is often referred to as the house of quality (HOQ). HOQ is regarded as a part of the QFD process. The matrices of HOQ include the importance of customer requirements and the relat...

11 Article history: 12 Available online xxxx 13 Keywords: 14 Fuzzy QFD 15 FAHP 16 FAD 17 SoQ 18 Shipping investments 19 Tanker markets 20 2 1 a b s t r a c t 22 Q5 Studying the market has crucial roles for executing the shipping investment decisions in maritime trans-23 portation industry. The high level of managerial effort requires bringing market tendencies with the up-24 to-date data over d...

The aim purpose of this paper is to empirically study the assessment of customer relationship management (CRM) for global shipping carrier-based logistics service providers (GSLPs) in Taiwan. At first, an evaluation framework integrated three methods and with combination of three stages questionnaires is developed. Three methods are threshold and importance analysis (TIA) approach, importance-p...