This study analyses the innovative performance of 5,273 companies across 64 different economic sectors and 32 regions in Colombia. We assess effects education open economy variables on firms by analyzing firm, sectoral, regional level determinants. The takes multilevel approach innovation process considering structure behavior systems developing countries. furthermore focus technology transfer ...

the prevalent communications networks suffer from lack of spectrum and spectrum inefficiency. this has motivated researchers to develop cognitive radio (cr) as a smart and dynamic radio access promised solution. a major challenge to this new technology is how to make fair assignment of available spectrum to unlicensed users, particularly for smart grids communication. this paper introduces an i...

in this article,we briefly analyse cognitive science and cognitive economics. generally, there are two main theories related to cognitive science and brain performance models. first theory which are inspired by computer and artifical intelligence and second the connectionist models. the connectionist theory is the most prevalent in cognitive science now. hayek and north ,the two nobel laureates...

the scheduling problems are the non-polynomial problems-hard (np-hard), is to solve it, and meta-heuristic innovative method compared with the exact method require less time and memory.in this research, developed imperialistic competitive algorithm used to solving the single-mode resource-constrained project scheduling problem.also the basic feasible solution algorithm used in order to increase...

improvement in braking performance and vehicle stability can be achieved through the use of braking systems whose brake force distribution is variable. electronic braking force distribution has an important and serious role in the vehicle stopping distance and stability. in this paper a new approach will be presented to achieve the braking force distribution strategy for articulated vehicles. f...

Leader opening and closing behaviors are assumed to foster high levels of employee exploration and exploitation behaviors, hence motivating employee innovative performance. Applying the ambidexterity theory of leadership for innovation, results revealed that leader opening and closing behaviors positively predicted employee exploration and exploitation behaviors, respectively, above and beyond ...

E studying innovation and technological change have made significant progress toward understanding firms’ profit incentives as drivers of innovation. However, innovative performance in firms should also depend heavily on the pecuniary and nonpecuniary motives of the employees actually working in research and development. Using data on more than 1,700 Ph.D. scientists and engineers, we examine t...

Thin-walled hollow steel columns, either circular or box shaped, are commonly used as piers in bridges. Recent earthquakes, e.g. Hyogoken-Nanbu or Kobe 1995, on the other hand have shown that these columns are vulnerable to damage when subjected to earthquake loading. This paper presents a new innovative thin-walled hollow steel column fabricated of corrugated plates, “thin-walled steel columns...