Then, a positive sample should be created with images of parking lamps. Red and green parking lamps occupy very small space in an entire image with a very simple ellipse shape so the images go through pre-processing based on color in order to lower the frequency of false positive on parking lamps. This paper suggests a method to detect locations of red and green parking lamps in UAV environment. However, the same analysis is not possible in the SiC-based device due to its extremely low measured luminous. It is also possible to accurately obtain the band gap value of the active layer in the device based on III–V nitrides (3.18☐.03 eV) by analyzing its electroluminescence spectra. The spectral response measurements allow us to obtain the peak wavelength of emission with reasonable precision (449±4 nm in the former one and 470±4 nm in the last one). From the measurements, an In relation could be established between light emission and device current, with n values related to both the physical structure and electroluminescence characteristics of these semiconductors. The analyzed devices are based on III–V nitrides (in which the active layer is a direct band gap In0.06Ga0.94N alloy) and SiC (where the active layer is the 6H polytype of this semiconductor, which is of an indirect band gap class). We present a laboratory experiment designed to show the main characteristics of blue light-emitting diodes. Unfortunately, many physics teachers either exclude or spend very little time on modern topics such as quantum mechanics in high school physics courses.1,2 The high degree of mathematical formalism and abstract nature of quantum mechanics is frequently given as a reason for not introducing quantum physics in high school physics courses.3,4 Students need to have at least a basic understanding of 20th-century physics and its applications in order to make informed decisions about them.
As our standard of living becomes more dependent on the latest developments in science and technology, our students' literacy must be at a level that enables them to make educated decisions on science- and technology-related issues and their everyday applications.
To emphasize the practical applications of contemporary physics, we introduced concepts using the contexts of light-emitting devices such as light-emitting diodes (LEDs), fluorescent lamps, and glow-in-the-dark toys. We developed activity-based instructional units to introduce basic quantum principles to students with limited physics and mathematics backgrounds.