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Radio frequency energy is the energy transmitted by sources that can generate electromagnetic fields like TV signals, radio signal, wireless networks and cell phone towers, by using specially designed circuits connected to a an antenna this electromagnetic energy can be harvested and converted into a usable DC voltage. One of the applications of this technology is in radio frequency identification tags in which harvesting device can receives an RF signal from a sensing device; this RF signal can
Wearable antennas are meant to be worn on human body so that it must be light weight, low profile, flexible, un-obstructive and rugged. To fulfill this requirements, textile materials are used to make wearable antennas. Electrical and dielectric properties of these textile materials are not readily available. Unlike, antennas embedded in portable devices, wearable antennas are designed to work in the complicated body-centric environment. Antenna performance near to human body is different than antenna
If voltage is applied to terminals of an antenna A and the current is measured at another antenna B, then an equal current (bot amplitude and phase) will appear at terminals of antenna A if same voltage is applied to antenna B. Application of reciprocity theorem Equality of Directional Patterns Statement: 'The directional pattern of an antenna as a receiving antenna is identical to that when used as a transmitting antenna." Proof: The above mentioned antenna theorem is the outcome of the application
So, How Smart are you? If I could give you anything…anything you wanted at all, what would it be? For many, the immediate response is: “I want to be smarter!!!” Why smarter? If you are very smart, what do you do with all this smartness? Is there such a thing as being too smart? My younger brother, Ian, is a fourteen-year-old junior in high school. Clearly precocious for his age and stature, there are many who envy his ability and talent to understand academic concepts with relative ease.
were both good at it. Zaroff and Mr. Baumer were the most evil people in "The Most Dangerous Game" and "Bargain" because they were both very sneaky and smart about murdering, they both stacked the deck against their victims, and they were both murderers. General Zaroff and Mr. Baumer were very sneaky and smart at committing the murders. General Zaroff "hunted"
Nora’s Smart Choice in A Doll's House So many women have suffered as the result of discriminatory duties. In the play "A Doll's House" written by Henrik Ibsen, the playwright reflects upon the subject of the 'social lie and duty'. By having Nora, the flawed heroine, slam the door shut just as her husband is hit by a ray of hope, Ibsen started much controversy between reviewers, columnists and the general audience. Through evidence offered by the play, Nora is right to leave her husband.
Negative Impact of God on the Minds of David Hume, Christopher Smart, and William Cowper David Hume was one of the most influential writers and philosophers of his time. Hume was the second son of Joseph Hume, laird of Ninewells, a small estate in Berwickshire. He was born and raised in Edinburgh, and studied law at Edinburgh University. He left the University without taking a degree with him, however. He spent the next three years living at his fathers, occupying his time primarily with
Smart House Some people think that it is difficult to find a relationship between home and computer. Usually people think that computer just using in a company and office. It is a misleading concept as we have a SMART HOUSE. The complete SMART HOUSE System has been available since early 1993. In a SMART HOUSE, people build a relationship between computer and home. The SMART HOUSE is a home management system that allows home owners to easily manage their daily lives by providing for a lifestyle
demand of development of compact antenna to support multiple applications that can be easily integrated within the small space that is available inside the device. In the case of, portable antenna technology has grown along with mobile and cellular technologies. Proper antenna for a device is the most important factor. This will improve transmission and reception of signals, reduce power consumption, long lasting and improve marketability of the device. Antennas used for early portable wireless
Skinny or Smart Would you rather be skinny or smart? This question hits young girls across America. Today many of our young Americans are losing weight to essentially be more “beautiful.” I use the word “beautiful” carefully because beautiful is not what is on the outside, but the inside is where it counts. Yes, some girls are naturally pretty and smart, but what some people don’t realize is that some of those girls are not eating and not exercising to get the body that they would like. This
willing, highly motivated and eager to learn. He's convinced that if he could only learn to read and write, the secret of being smart would be revealed to him. Charlie wants to be smart because he works as a janitor in a factory where he has many friends, but even as he goes along with their hijinks, he suspects his friends mock him. The opportunity to be made smart--really smart--is irresistible, even though there's a chance that the results of the operation will only be temporary. Because Charlie wants
Long ago there lived a race of cat people who had much the same problems with antennas that we humans have today: bad reception during the last few seconds of a game, continual snow during their favorite part of their favorite movie, and a severe lack of the "magic position" that one is required to hold when covered in tin foil and grasping the antenna. Unfortunately for them, they did not have this web page to reference and therefore they died. This left an opening for humans. Initially, humans
Smart Growth Initiative in the Face of NJ Landscape Change The face of the American landscape has undergone a period of fantastic change in recent decades. With an expanding population and innumerable opportunities for economic and physical growth, urban centers and sprawling suburbs have pushed farther and farther into outlying areas causing pressures and development on previously untouched, natural lands. New Jersey has become, in many ways, the focus in dealing with issues of sprawl and development
Be Smart, Don’t start. We can vividly recall the endless television commercials from reporters and speeches we received from teachers that informed us of the side affects of smoking. As young boys, neither one of us quite understood what was so bad about smoking. We just knew it was frowned upon, and it was strictly discouraged by our parents. Recently our foundations were shaken when we read an article by Peter Brimelow that presented smoking as beneficial and a preventative tool against
Smart Bombs: The History and Future of Strategic Bombardment Introduction Every kid loves to hear stories from their grandparents about something that they have experienced in their life. For me, some of the best stories came from my father about the air war that was waged over Europe during World War II. He often told me of a day that a formation of almost 1,000 bombers flew over his base: "The drone of the planes could be heard for miles and made us on the ground feel as small as ants
There is a parlor game physics students play: Who was the greater genius? Galileo or Kepler? (Galileo) Maxwell or Bohr? (Maxwell, but it's closer than you might think). Hawking or Heisenberg? (A no-brainer, whatever the best-seller lists might say. It's Heisenberg). But there are two figures who are simply off the charts. Isaac Newton is one. The other is Albert Einstein. If pressed, physicists give Newton pride of place, but it is a photo finish -- and no one else is in the race. Newton's claim
The Smart Classroom The classroom is a place that is constantly trying to be improved for the betterment of students’ education. New teaching methods and improvement in environment are all constantly being researched; however, recently, research on technology in the classroom has flourished. The Smart Classroom contains these technological advances and triggers them toward in-hancing student learning. Classrooms in the past never really took into consideration that all students learned differently
Teen Romanance is Not Smart Do teenagers today have their priorities in the correct order when it comes to dating? More and more often, it does not seem they do. Some teenagers these days spend too much time focusing on their "romantic" relationships instead of the things that should be more important. Teenagers who are in serious relationships do not care as much about school, their families, or their jobs. These teenagers seem to forget everything that should be important to them
Smart Car Technology Answer A : The TravTek navigationsystem is installed in 100 Oldsmobile Toronados, the visual part of the system is a computer monitor. Through detailed colour maps, it leads the driver through the town. The map changes all the time, cause a computer connected to a navigation-satellite, and with a magnetic compass installed, calculates the fastest or easiest way to your destination. When yellow circles appear in a particular place on the screen, it means that there is traffic