provider keeps track of the length of the call to provide a billing record. A Fixed Line refers to a phone that uses a metal wire telephone line for transmission. (Wikipedia‚ the free encyclopedia ‚ 2014) Cellular telephones have types of telecommunications components‚ voice and data. GSM (Global System for Mobile communications) is an open‚ digital cellular technology used for transmitting mobile voice and data services. GSM differs from first generation wireless systems in that it uses digital
Premium Local loop Telephone Telephone exchange
the solar system‚ at least for the next few centuries. Venus is far too hot. Mercury experiences extreme temperatures‚ as the days and nights are so long. Jupiter‚ Saturn‚ Neptune‚ and Uranus have no solid surface i.e. they have a gaseous surface. Pluto is very far away. Comets and asteroids have too little gravity for a surface colony‚ although some have suggested that an asteroid could be hollowed out. This is
Premium Earth Planet Solar System
INTRODUCTION Telecommunications has become one of the fastest growing business sectors in modern information technology. The competition between the mobile suppliers is more severe as the telecom market has recently been closed to saturation in mobile subscribers. Therefore‚ suppliers try to attract customers by focusing on value-added services. This report indicates the battle of intensifying 3G services between the three strongest mobile providers Vinaphone‚ Viettel and MobiFone‚ which is based
Premium Monopoly Perfect competition Mobile Web
Once known as the ninth planet of the solar system‚ Pluto is now the second-largest dwarf planet. Composed primarily of ice and rock‚ Pluto took part of our Solar System for 76 years. It was discovered on January 23‚ 1930 by Clyde Tombaugh. Tombaugh was an American astronomer who worked at the Lowell Obeservatory. Tombaugh had been working on a project when he came across a moving object in photographs he had taken of the celestial sky. After observing a lower quality picture taken of the mysterious
Premium Planet Solar System Dwarf planet
because when Pluto was a planet‚ it had most of all of those features‚ only that it didn’t orbit the sun like the closer planets. Pluto was considered a dwarf planet after only fulfilling 2 requirement‚ no Planeteering for this guy. Alright then‚ what is the definition of a planet? In the dictionary‚ a planet is defined as "a celestial body moving in an elliptical orbit around a star‚" a clear reason that anything orbiting a star can be a planet. Then why do we dismiss the thought that Pluto is a celestial
Premium Planet Solar System Earth
endless information which is new to scientists everyday. Pluto has some but certainly not all the qualities as it was found orbiting the Kuiper belt which is beyond the orbit of Neptune‚ the current furthest planet from the sun. Pluto has been one of the 9 planets in the past‚ but now that scientists have higher tech machines and programmes to allow them to explore further and deeper than just around the sun‚ they soon found out that pluto is a dwarf planet. Neptune in the past was second furthest
Premium Solar System Planet Earth
Pluto Not a Planet‚ Astronomers Rule Pluto has been voted off the island. The distant‚ ice-covered world is no longer a true planet‚ according to a new definition of the term voted on by scientists today "Whoa! Pluto’s dead‚" said astronomer Mike Brown‚ of the California Institute of Technology in Pasadena‚ as he watched a Webcast of the vote. "There are finally‚ officially‚ eight planets in the solar system." In a move that’s already generating controversy and will force textbooks to be rewritten
Premium Dwarf planet Solar System Eris
to talk about the little planet named Pluto. I personally think it’s unfair to the planet to be named something and then drawn back‚ Then again they had hard evidence on to why they did it. So I am going to give you the top reasons on why they took its righteous calling of a planet back. One of the main problems is its size. Many people thought it was too small to be called a planet and referred to it as the star. Ryan C. of the planetary society said: “ Pluto is a Disney character who has been in
Premium Solar System Earth Planet
I believe that the International Astronomical union is wrong to believe that Pluto no longer deserves the designation of a planet. I even disagree with the definition of what a planet should be‚ and after doing a little bit of research‚ I have found that only four percent of IAU members were actually present for the vote. They chose to vote on the day that most of the members were catching a flight home. Kind of fishy if you ask me. After over 80 years of being a planet‚ and in just one night it
Premium
DESIGN OF A CHIRPED FIBER BRAGG GRATING FOR USE IN WIDEBAND DISPERSION COMPENSATION İsa Navruz e-mail: inavruz@eng.ankara.edu.tr Ahmet Altuncu e-mail: altuncu@mail.dumlupinar.edu.tr Key words: Fiber Bragg grating ‚ dispersion compensation‚ apodization ABSTRACT A wideband chirped fiber Bragg grating (FBG) dispersion compensator operating in C band is designed theoretically by numerically solving the coupled mode equations. The power reflectivity spectrum and dispersion characteristics of
Premium Optical fiber Refractive index