نتایج جستجو برای: gap engineering
تعداد نتایج: 397834 فیلتر نتایج به سال:
by means of first principles calculations we show that both rutile and anatase phases of bulk tio2 doped by s, se or pb can display substantial decreasing in the band gap (up to 50%), while doping by zr does not sizably affect the band-gap value. moreover, the absorption edge is shifted (up to 1 ev) to the lower energy range in the case of tio2 doped by s or pb that opens a way to enhancing of ...
Purpose: The paper suggests a way to support work-integrated learning for knowledge work which poses a great challenge for current research and practice. Methodology/Approach: We first suggest a Workplace Learning Context Model which has been derived by analyzing knowledge work and the knowledge sources used by knowledge workers. We then focus on the part of the context which specifies competen...
Purpose – The purpose of this paper is to suggest a way to support work-integrated learning for knowledge work, which poses a great challenge for current research and practice. Design/methodology/approach – The authors first suggest a workplace learning context model, which has been derived by analyzing knowledge work and the knowledge sources used by knowledge workers. The authors then focus o...
It is common in many countries that engineers having an academic degree in Civil Engineering are appointed responsible for different tasks related to Bridge Engineering. However, there are serious questions about whether formal university courses in civil engineering could cover the needs of a bridge engineer to fulfill his or her job successfully. Regarding the recent significant advances in t...
Education and Work online at: New and unprecedented standards for mathematical and computation literacy have emerged for the nation’s workforce. Generated by the science-intensive and digitally driven global economy, today’s careers in health science, engineering, value added manufacturing, and nano-fabrication require advanced mathematics. The importance of mathematical and computational compe...
In this research, we have studied the photonic band structure, optical properties and thermal emission spectrum of 2D Silicon photonic crystal with hexagonal structure. The band structure, band gap map and the gap size versus radius have been calculated by plane wave expansion method. The maximum band gap size of TE (TM) polarization and the complete gap size are 51% (20%) and 17% at air hole r...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید