Radio frequency

INTRODUCTION Millimeter wave therapy is the exposure to a frequency that ranges from 30-300 GHz. This frequency is located in the radio frequency region of the electromagnetic spectrum. Due to the extremely small wavelength the frequency will only penetrate up to 2 mm of skin. In therapy the frequency is irradiated on certain parts of the tissue, depending on the specific treatment and energy it is deposited in the skin causing a variety of beneficial reactions. In the Former Soviet Union (FSU)…

electronic device, that where it is allowed or stopped unnecessary frequency or signals. And also it is Designed and developed to transmit frequencies in particular fixed range if needed. An also Filters also it alters the amplitude of signal it’s based on level of frequency. There are 4 types of filters: They are Low pass Filter: It’s a type of filter that which allows the signals which are lower and it will be cut- off by the frequency at certain time.…

He learned that all sound’s speed was affected by the medium it travels through (“sound”). He also learned other aspects of mediums and how they affect sound. The final scientist I will discuss is Daniel Bernoulli, and he made discoveries about frequencies…

Chapter 2 INTRODUCTION TO NOISE 2.1 SOUND: Sound is a form of energy that produces a sensation of hearing in our ears. Sound is produced by vibrating objects. The matter or substance through which sound is transmitted is called a medium. It can be solid, liquid or gas. Sound moves through the medium form the point of generation to the listener. When an object vibrates, it sets the molecules of medium around it vibrating. The…

with plunges up to 90 degrees. Be that as it may, it is computationally extremely concentrated. The movement calculations in ω - x area are innately parallel as far as frequencies. This favors us to respond to the call of exceptional process serious nature of ω - x movement on a parallel design…

electromagnetic devices claim to affect the nervous system of small rodents, which allows them to stay away from said area. A new solution is to combine ultrasonic waves with electromagnetic waves to repel pests, the ultrasonic waves will produce a frequency that cannot be heard by humans, but bugs will hear as a warning. The electromagnetic waves will be used to affect the nervous system of the bugs, but since their nervous system isn 't in affected the same way as small rodents, which is what…

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 vocalists sound good in the mix which is a well known thing to the engineers. Eq may differ with the kind of genre you are mixing. Ten years ago, it was safe to make a statement…

How does sound travel through the three parts of the ear? There are three parts of the ear in which sound must travel; the outer, middle, and inner ear. Sound does not simply go from the outer ear to the inner ear; it must become four different types of energy in order to pass through. These types of energy are acoustic, mechanical, hydraulic, and electrical. Ears work in a pair to help us localize and discriminate where sounds are coming from in our surroundings. It seems hard to believe but…

Television and the Internet are, in the 21st century, replacing radio. In fact, advances in technology have allowed people to access an increasing amount of information, through different forms. A person wanting to learn about world news can now go on the Internet, read a newspaper, watch television or listen to the radio. The technology behind radio as well as its inventors is the reason why, nowadays, people have an unlimited access to information; it began in 1844, with the invention of the…

Chapter 5 Proximity Sensor 5.1 Introduction A proximity sensors is the sensor able to detect the presence of nearby objects without any physical contact. A proximity sensors often emits an electromagnetic field or a beam of electromagnetic radiation, and looks for changes in the field or return signal. The object being sensed is often referred to as the proximity sensor's target. Different proximity sensor target demand different sensor. For examples a capacitive or photoelectric sensors…