This article studies the synergy effect of entrepreneurship on China’s industrial clusters. We propose an extension to Duranton and Overman’s (2005) method which enables us to delimit industrial clusters in space. The empirical model is identified with historical measures of local entrepreneur potential in the spirit of Chinitz (1961). We find that measures of entrepreneurship contribute signif...

locating landfills in urban areas is one of the most important issues in urban planning because of the effect on economy, ecology, and environment, therefore the right management and principled landfilling of solid waste is the major concern all over the world especially in the developed countries. in locating landfills, different criteria should be considered. in the present study, locating si...

rapid population increase, expanding urbanization, lack of employment opportunities, particularly in agriculture, population pressure on natural resources and failing to create and expand medium and large industries, especially in developing countries led industrialization strategy that these countries from the mid-decade villages 1970 in their development programs to consider. this year emphas...

The congestion of the city area within the walls along the 19th century and the economic and social crisis of historic centres during most of the 20th century led to their deterioration. The theoretical conceptualization and practical implementation of domestic improvement and reform programmes have changed with time. With the beginning of the new century, urban dynamics in a globalized space a...

This review reports recent advances in the field of polymer–layered silicate nano composites. Thesematerials have attracted both academic and industrial attention because they exhibit dramaticimprovement in properties at very low filler contents. Herein, the structure, preparation andproperties of polymer–layered silicate nanocomposites are discussed in general, and finally the effectof clay na...

Background: Contamination of the environment due to heavy metals is a major concern to human life and the environment. This study was conducted to investigate and quantify the copper and zinc concentrations in industrial estates soil in Arak, Iran. Methods: Four industrial estates were considered for the experimental design, including Arak 1, Arak 2, Arak 3, and Ghotbe Sanaati. For prelimin...

Autonomous cooperating logistic processes seem to be a promising approach to increase the robustness of logistics systems. Searching for the necessary organizational prerequisites for the successful implementation and sustainment of autonomous cooperating logistic processes we pick up the concept of robustness and use the New Systems Theory to outline a notion of organizational robustness, whic...

Iconic interfaces are now the de facto interface for most computer systems. Despite the popularity of iconic interfaces and the widespread belief that iconic interfaces are easier to comprehend than non-iconic interfaces, we have not come across any published study that has examined the effect of domain knowledge on end users’ interpretation of icons. An understanding of the relationship betwee...

Time series data are an ubiquitous and important data source in many domains. Most companies and organizations rely on this data for critical tasks like decision-making, planning, and analytics in general. Usually, all these tasks focus on actual data representing organization and business processes. In order to assess the robustness of current systems and methods, it is also desirable to focus...