نتایج جستجو برای: light reflection

تعداد نتایج: 452837  

Farzad Vaziri Alamdarlo Masoud Rezvani Jalal

In the present paper, the problem of light reflection from a birefringent medium and thin film is considered. First, the analytical equations governing the propagation of a plane and harmonic electromagnetic wave in an infinite, birefringent, linear, non-dispersive, non-absorbing, and non-magnetic medium is derived from Maxwell equations. Then, using phase matching condition and boundary condit...

Journal: :Emerging Infectious Diseases 2015

Journal: :تاریخ علم 0
سهیلا پازری دکتری تاریخ علم دورۀ اسلامی، پژوهشگاه علوم انسانی و مطالعات فرهنگی

apart expressing the cause of the reflection of light from the surface of polished objects, ibn al-haytham in his al-manāẓir claims that the acceptance or rejection of light by these objects is only due to their polished surfaces and have nothing to do with their solidity, because the reflection of light from the surface of soft polished objects such as water is also possible. kamāl al-dīn al-f...

ابراهیم نسب, ستاره, ثابت داریانی, رضا,

Reflection spectra of four porous silicon samples under etching times of 2, 6, 10, and 14 min with current density of 10 mA/cm2 were measured. Reflection spectra behaviors for all samples were the same, but their intensities were different and decreased by increasing the etching time. The similar behavior of reflection spectra could be attributed to the electrolyte solution concentration which ...

2015
Byron Breedlove

saw the light” figure often in our everyday speech, we do not typically contemplate light. We may marvel at its seemingly mysterious expression through auroras, rainbows, lasers, or celestial objects or find comfort in its subtler forms such as sunbeams, candles, campfires, or fireflies. Artists and scientists, by contrast, do study and manipulate light, reflection, and illumination. Impression...

Journal: :Materials Today 2013

Journal: :JOURNAL OF THE JAPAN WELDING SOCIETY 2007

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید