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In order to enhance the quality of products, the improvement of processes is required. This may be accomplished by means of experiments to establish the characteristics of quality and required conditions to keep the operation under control. In the elaboration of soluble coffee, the Taguchi Method has not been used widely, possibly due to its complexity and special features of the process. Therefore, the aim of this paper is to show the results obtained from a procedure that was applied based on Taguchi Method, in a manufacturing company of soluble coffee. The method allowed for the experimentation with uncontrollable factors, the depuration of the variables of the production process that affected their results and the quantitative evaluation of the quality loss due to functional variations. Furthermore, the results provide valuable information for companies in the sector, allowing them to undertake projects to improve the quality of this type of processes. [ABSTRACT FROM AUTHOR]

This paper deals with the application of six sigma methodology (DMAIC) and Taguchi methods to solve the problem of low resistance of the pulling test of a light emitting diode (LED), which is used in the assembly of cellular telephones in a northwest Mexican electronic company. After finishing this project a significant improvement was achieved that made possible to increase process capability from 0.56 to 1.45 and the impact in cost reduction only by the elimination of waste was of 130 thousand US dollars in savings per year. This achievement did not require additional investment, it was only necessary to control each of the most important factors in the process. [ABSTRACT FROM AUTHOR]

In this work, the experimental design of Taguchi model was applied in order to obtain the most appropriate parameters to elaborate an agglomerate material which presents a good mechanical and thermal behavior. The raw materials used were rice husk, common clay, sand and aloe gel. The importance of the development of the synthetic agglomerates is in the use of agricultural wastes to give them an useful employment when replacing materials of great demand. The experimental combinations were done varying the control factors values: rice husk percentage (R), temperature (T) and thermal treatment time(t). Via to the optimization properties according Taguchi's Methodology, the elasticity modulus, the absorbed energy in the impact, break maximum module and initial decomposition temperature to each experimental combination were selected. The Qualitek-4 software was used below the biggest the better quality characteristic. The optimum parameters obtained to each control level were: R = 15%, T = 120°C and t = 3 h. These results were confirmed with a new experiment, where similar properties to the wood species were obtained. The developing of this will be useful as substitute of the wood and could improve the environment impact due residual materials. [ABSTRACT FROM AUTHOR]

This paper contains the first part of the study of the production process of the 1-(fur-2-yl) 2-nitroethene or G-0. This work was made in the Production Laboratory of the Center of Bioactive Chemicals by modern polar graphic techniques (PDP) and off line statistical control. It was found the best combination of the synthesis variables for the compound. [ABSTRACT FROM AUTHOR]