Grey Systems: Theory and Application: Volume 9 Issue 4

Multi-objective optimization of high carbon steel (EN-31) and low carbon steel (SAE-1020) using Grey Taguchi method in rotary friction stir welding

Kanwal Jit Singh

Nowadays, a rotary friction welding method is accepted in many industries, particularly for joining dissimilar materials as a mass production process. It is due to advantages like…

Simple assembly line balancing problem of Type 1 with grey demand and grey task durations

Oğuzhan Ahmet Arık, Erkan Köse, Jeffrey Forrest

The purpose of this paper is to present a mixed integer programming model for simple assembly line balancing problems (SALBP) with Type 1 when the annual demand and task durations…

Grey relational evaluation of impact and control of malaria in Sub-Saharan Africa

Tawiah Kwatekwei Quartey-Papafio, Sifeng Liu, Sara Javed

The rise in malaria deaths discloses a decline of global malaria eradication that shows that control measures and fund distribution have missed its right of way. Therefore, the…

Evaluation of healthcare service quality factors using grey relational analysis in a dialysis center

Erdal Aydemir, Yusuf Sahin

The purpose of this paper is to investigate the relative influences of technical and functional quality levels of service quality and patient satisfaction. In this context, the…

Application of GRA method for multi-objective optimization of roller burnishing process parameters using a carbide tool on high carbon steel (AISI-1040)

Sandeep Kumar, Bedasruti Mitra, Naresh Kumar

The purpose of this paper is to analyze and optimize the roller burnishing process parameters using the design of experiments and grey relational analysis (GRA).

Geodetic deformation forecasting based on multi-variable grey prediction model and regression model

Erkan Kose, Levent Tasci

The purpose of this paper is to examine the effectiveness of the multivariable grey prediction model in deformation forecasting.

A comparative analysis of grey ranking approaches

Davood Darvishi, Jeffrey Forrest, Sifeng Liu

Ranking and comparing grey numbers represent a very important decision-making procedure in any given grey environment. The purpose of this paper is to study the existing…

Forecasting the total energy consumption in Ghana using grey models

Emmanuel Kwadzo Katani

The purpose of this paper is to forecast the future trend of Ghana’s total energy consumption (GTEC) using two grey models, which are GM(1,1) and the grey Verhulst model.

Financial performance assessment using Grey relational analysis (GRA): An application to life insurance companies in India

Anandarao Suvvari, Raja Sethu Durai S., Phanindra Goyari

Traditional statistical methods to study the financial performance of any industry have many barriers and limitations in terms of the statistical distribution of the financial…