نتایج جستجو برای: national system of innovation

تعداد نتایج: 21370309  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

2011
Chan-Yuan Wong

As typical emerging economies in the race for acquiring innovation rents, many emerging economies have the urgency to transform their economy in which dependent on export-oriented manufacturing to knowledge-based economy. Many studies highlighted the pathways taken by these economies to achieve development and how distinctive national innovation system contributed to growth and productivity in ...

Journal: :CoRR 2012
Inga A. Ivanova Loet Leydesdorff

Using a mathematical model, we show that a Triple Helix (TH) system contains self-interaction, and therefore self-organization of innovations can be expected in waves, whereas a Double Helix (DH) remains determined by its linear constituents. (The mathematical model is fully elaborated in the Appendices.) The ensuing innovation systems can be expected to have a fractal structure: innovation sys...

Journal: :توسعه کارآفرینی 0
محمد رضا میگون پوری استادیار دانشکدة کارآفرینی، دانشگاه تهران محمود متوسلی استاد دانشکدة اقتصاد، دانشگاه تهران الهه میگون پوری کارشناس ارشد کارآفرینی، دانشگاه تهران

nowadays clean energy and technological innovation in this field have becomevery important. dynamic innovation and technology development are done by the formation of technological innovation systems and factors influencing thefunctions of system play a key role in the emergence of such systems.considering the lack of previous researches in this area, this research seeks toanswer the question t...

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