Adaptive optimal control of nonlinear dynamic systems with deterministic and known dynamics under a known undiscounted infinite-horizon cost function is investigated. Policy iteration scheme initiated using a stabilizing initial control is analyzed in solving the problem. The convergence of the iterations and the optimality of the limit functions, which follows from the established uniqueness o...

Regions tend to become the relevant space for the analysis of public funding of innovation, as emphasised by numerous recent works. However, it is still to be demonstrated that the regional level is really the right spatial scaling for implementing innovation public policies. The aim of this paper is to provide a series of analytical and empirical elements that could help clarify this issue. Th...

the nigerian rice sector has made remarkable improvement in the last decade as production has increased significantly thereby reducing the gap between domestic supply and demand. in the last three decades, rice imports make up greater proportion of nigerian imports as rice forms a structural component of the nigerian diet. past government inconsistent policies were not successful in securing go...

â â â â  libya experienced a substantial increase in oil revenue as a result of increased oil prices during the period of the late 1970s and early 1980s, and again after 2000. recent increases in oil production and the price of oil, and their positive and negative macroeconomic impacts upon key macroeconomic variables, are of considerable contemporary importance to an oil dependent economy such...

At present, China's housing prices and structures have been severe distorted, which have been done serious harm on the development of national economy and people's lives, the government has implemented the most strictest macro-control. This paper applies the correlation and principal component analysis on the supply & demand of housing market. Aims to points out clear direction for the implemen...

Preserving the privacy of individuals when data are shared for clustering is a complex problem. The challenge is how to protect the underlying data values subjected to clustering without jeopardizing the similarity between objects under analysis. In this short paper, we revisit a family of geometric data transformation methods (GDTMs) that distort numerical attributes by translations, scalings,...

this paper seeks to explore the status of municipalities in the implementation of local social policy based on the existing legal framework though analyzing all legislations and regulations pertaining to municipalities (specially tehran municipality). the paper uses both quantitative and qualitative content analysis and applies thematic analysis. research findings indicate that most of tasks an...