Wavelength

Δfsw−coeff(푚,휃푣)=1−(1−Δfsw−nom(푚,휃푣))∗푘 (9) The coefficients are multiplied with the base switching frequency to provide the operating switching frequency of the inverter, as shown in Fig. 5. It should be noted that the base switching frequency magnitude does not depend on the sub-cycle current ripple variation and is typically adjusted based on operating current, speed and temperature of the traction drive [1]. SIMULATION RESULTS For the simulation study, a two-level inverter driving a…

Waves are disturbances that transfer energy from one place to another without transferring the particles of a medium. Some waves must travel through matter, known as the medium (mechanical waves). And when they travel through the medium they cause the particles to vibrate. Some types of mechanical waves are sound waves and ocean waves. Electromagnetic waves, on the other hand, are waves that do not need to travel through a medium. They are disturbances in both the electric and magnetic fields.…

1 Introduction Interferometry is a measurement technique which utilizes the interference of waves in a medium to cre-ate interference patterns [5]. In general, the waves can be light, sound or radio waves. The interference pattern is detected by a photodetector and it provides some useful information about the properties of the object or phenomenon under test. Interferometers are used to make very small measurements that cannot be achieved with any other method. An important…

Have you ever wondered what instruments the Greeks had? Well, here is three questions you may ask. How much is the floyera like the flute today? How were the Karamouzis made? And, What is the Daouli? The floyera is a recorder like instrument. Unlike the flute you blow out of the top like a recorder, but it still has all the keys a flute. Yes this is just a fun fact, but the floyera in Greece is also a pastry. This is because it is shaped as the instrument. The main reason why the flute is the…

The Kinect V2 is composed of a time-of-flight continues-wave camera with a resolution of 512*424 pixels (width*height), an RGB camera with a resolution of 1920*1080 pixels (width*height), an array of 4 microphones and some electronics for signal elaboration. The camera is able to acquire images at a maximum frequency of 30 Hz. Sending out invisible structures pulses into the scene whilst measuring the individual traveling time of each point in the pulse (See figure 3.1, page 16). The operating…

EQ:- Eq is often used to shape the tone of a vocal track. Which meanest is often used by engineers to enhance the tone, make the tone muddy, enhance the low ends etc. In EQ the first step I would suggest is to remove the low ends. Play around with the eq to remove the rumbles in the track and make it as clean as possible before putting on any effects or compression. Use a high pass filter to remove most of the low frequencies like the background noise. Use drastic eq to find out where the…

The Schlieren photographs taken in this lab, attached in Appendix B, show how the flow develops with respect to the flow exit pressure that is controlled by the opening of the valve. Schlieren photography is made possible by the variation of refraction index of gases in different density. To be more specific, the Schlieren photographs are taken in an environment with a collimated light. Without external interference, a collimated light should propagate in parallel for an infinite distance;…

As a young child, I can recall my grandparents taking me to a local ice cream parlor in Columbus, Indiana called Zaharakos. The ice cream parlor is most famous for it’s old fashioned ice cream and it’s pipe organ. While you were eating ice cream, you could sit and listen to the pipe organ play in the background on a hot, summer day. In the reading about the pipe organ, it mentions that one of the different ways it makes different sounds is through flue or reed pipes. My question would be, what…

looking at different objects are due to the ability of the compounds in those objects to absorb specific wavelengths of light. In other words, the colors that are seen are the ones that are not absorbed. The wavelengths of light that are absorbed are determined by the electrons in a compound.1 As electrons move around, they can absorb energy and become excited. The energy, and thus the wavelength of light, the electrons absorb is determined by the type of atoms found in the compound and how…

known as an light path. The problem in finding a route for a light path with wavelength assigned to the light path is submitted as the routing and wavelength assignment problem (RWA). The problem of RWA is divided into two parts : Routing and Wavelength Assignment. In the traffic model, the RWA problem is considered as either Static Light path Establishment (SLE) [14] where the idea is to minimize the number of wavelengths wanted to accommodate the given connection set or Dynamic Light path…