Md. Saiful Islam Shohel

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Life is our suspended action

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Life is our suspended action… Look at the title of this article, it’s have a color and it’s red. Why it’s red? Because of you have seen it right? If you can’t see it so what would it happened? It’s have no color. No one in the world who will …

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what is Astable Monostable and Bistable in EEE

Figure 3: Basic animated interactive BJT bistable multivibrator circuit

what is Astable Monostable and Bistable in EEE In the EEE department, students need to know  what is Astable Monostable and Bistable. Basically this three mode are a type of multivibrator circuit. So we can say there are three types of multivibrator circuit. Astable Monostable Bistable Astable: in which the …

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Want to gain on youtube and google adsense? – Tips

Careness of youtube adsense

Want to gain on youtube and google adsense? – Tips Google and youtube adsense is the most popular earnings platform for the online. But the maximum people don’t know how to achive in google and youtube adsense. Today I will give you some important tips for the adsense. What is …

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How to add a custom theme on gmail – short tips

How to change the gmail theme - short tips

How to add a custom theme on gmail Google mail it’s called gmail. The standard version of gmail supported a them behind the windows. By using this theme the gmail window will be more beautiful. It’s very simple task but some don’t know how to do that. I will show …

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A short description “TDMA definition and main features TDMA”

Definition of TDMA

A short description “TDMA definition and main features TDMA” Definition of TDMA: Time Division Multiple Access (TDMA) systems divide the radio spectrum into time slots and each time slot is assigned to only one user. In TDMA/TDD half of the time slots in the frame information message would be used …

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A short description of “FDMA definition and the main features of FDMA”

FDMA definition

A short description of “FDMA definition and the main features of FDMA” Definition of FDMA: Frequency Division Multiple Access (FDMA) assigns individual channels to individual users. Each user is allocated a unique frequency band or channel. These channels are assigned on demand to users. Main Features of FDMA: FDMA channel carries only one …

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A short description of “Duplexing, Frequency Division Duplexing, Time Division Duplexing”

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A short description of “Duplexing, Frequency Division Duplexing, Time Division Duplexing” Duplexing In wireless communication system, it is often desirable to allow the subscriber to send simultaneously information to the base station while receiving information from the base station. This effect is duplexing. Frequency Division Duplexing FDD provides two distinct bands of frequencies for …

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A short description of “Radio Wave Propagation”

A short description of Radio Wave Propagation

A short description of “Radio Wave Propagation” Radio waves propagate through space as travelling electromagnetic waves. The energy of signals exists in the form of electrical and magnetic fields. Both electrical and magnetic fields vary sinusoidally with time. The two fields always exist together because a change in electrical field generates a magnetic field …

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A short description of “Three Basic Propagation Mechanisms”

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A short description of “Three Basic Propagation Mechanisms” Basic propagation mechanisms – Reflection – Diffraction – Scattering Reflection occurs when a propagating electromagnetic wave impinges upon an object which has very large dimensions when compared to the wavelength, e.g., buildings, walls. Diffraction occurs when the radio path between the transmitter …

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