Fuzzy logic in manufacturing: A review of literature and a specialized application

Manufacturing decisions inherently face uncertainties and imprecision. Fuzzy logic, and tools based on fuzzy logic, allow for the inclusion of uncertainties and imperfect information in decision making models, making them well suited for manufacturing decisions. In this study, we first review the progression in the use of fuzzy tools in tackling different manufacturing issues during the past two decades. We then apply fuzzy linear programming to a less emphasized, but important issue in manufacturing, namely that of product mix prioritization. The proposed algorithm, based on linear programming with fuzzy constraints and integer variables, provides several advantages to existing algorithm as it carries increased ease in understanding, in use, and provides flexibility in its application.     

Ex-post evaluation of scenarios: the case of nanotechnology societal impacts

Scenario development is one of the popular methods of futures studies. There has been a lot of attention paid to different methods of scenario writing in theoretical literature; but what is important is to evaluate the scenarios which has not been a matter of comprehensive study heretofore. In this paper, we have carried out a comprehensive study in this regard. Accordingly, evaluation has been divided into three categories: ex-ante evaluation, mid-term evaluation and ex-post evaluation. Ex-ante evaluation is carried out when the scenario is generating; mid-term evaluation is carried out when the scenarios are transferring; and ex-post evaluation is being done after the transfer of scenarios. It should be noted that main purpose for ex-ante evaluation is considered “effectiveness”, for mid-term evaluation “relevance”, and for ex-post evaluation “the impact”. The outstanding part of this paper is the ex-post evaluation of scenarios for societal impact of nanotechnology, (which is carried out in accordance with a former paper) whose corresponding National Iranian Nanotechnology Initiative (NINI) time began approximately 10 years ago.     

A new definition and framework for the development of a national technology strategy: The case of nanotechnology for Iran

In this research, we use the concepts of “national technology policy” as well as the “firm technology strategy” in defining a new definition for “national technology strategy”. Then, by examining several national technology strategies in a variety of fields in different countries the national nanotechnology strategy for Iran is developed. Furthermore, using capability-effectiveness matrix and SWOT analysis we identify strategies of nanotechnology development in Iran. Finally, considering other countries' strategies and the results of PROMETHEE Method, we prioritize different areas of nanotechnology for Iranian economy, and test for the validity of the extracted strategies.     

Neoclassical versus evolutionary economics in developing countries: convergence of policy implications

This paper aims to determine whether the dichotomy between the science, technology, and innovation policy based on neoclassical and evolutionary schools of economics is applicable to developing countries. Regarding the fundamental differences in foundations of these two economic paradigms, policymakers have been forced to select and to follow one of the two seemingly competing views. However, in developing countries, due to various market and government coordination failures, complying with one of the schools has not been successful in practice. From the past, there has been some controversy between neoclassical and evolutionary schools on the subject of science, technology and innovation policy. Using a survey questionnaire and statistical analyses of the results, this paper shows that, due to the institutional setting and structural conditions in developing countries, despite the fundamentally different foundations of the competing schools of thought, the policy implications of the schools have converged. Drawing on Theme Analysis Method, the rationales are first conceptualized and then the fuzzy method is applied to reveal the respondents’ tendency to the extracted rationales and implications of the two competing schools. In conclusion, the statistical results validate the proposed hypothesis.