Transmission
Neural Signals are the electrical potential carrying the information to be transmitted between neurons/dendrites. They also initiate chemical stimulation on the synapses to transfer/carry forward the message from/to brain.
The air carrying the smell would dissolve in it and hence it changes to electrical signals which goes to the olfactory lobes.
Yes, the cell membrane is actually what receives and recognizes different chemical signals, then it creates other chemicals to let a specific part of the cell to do something.
I beleive what you are referring to is a modulated signal which can be either amplitude, frequency or phase modulation. As with radio signals carrying information: AM, FM or PM.
Nerve Cells are circle because their anatomical shape reflects their physiological job. They are circle because they consist of axons, dendrites and a cell body and they carry electronic signals throughout your whole body! :]
Fiber optic Cable bearing many fibers independently sheathed and capable of carrying unrelated signals
Digital signals are capable of carrying more information than analogue signals because digital signals make use of the bandwidth more efficiently by closely approximating the original analogue..
modem
All or almost all materials affect wireless signals.
superdiode consist of diode and amplifier circuit.it is used for the rectification of small signals
MODEM (Modulator - Demodulator)modulates Digitals signals to Analog to send over Telephone lines and Demodulates Analog signals in Digital Signals.
Omnidirectional means that something is capable of transmitting or receiving signals in all directions.
Co-ax cable is quite capable of carrying HD signals as part of a domestic cable service. However, optical fiber is now far more cost effective than copper so it si increasingly used for trunks with copper links carrying signals the last few feet into a home. Some are now taking fiber right into the home. Regarding video signals within the home, co-ax cable is used to carry composite video (standard definition color signals) and this will not carry HD signals. This is purely because coaxial interfaces for HD in domestic equipment. Coaxial cable is still used widely in broadcast environments to carry SD and HD signals.
Both telephone and data signals can be received at the same time by use of a microfilter. This device increases the data-carrying capacity of the line without disturbing the telephone signals.
signal is a physical quantity.the system which capable of analyzing the signal is the system.
Neural Signals are the electrical potential carrying the information to be transmitted between neurons/dendrites. They also initiate chemical stimulation on the synapses to transfer/carry forward the message from/to brain.
SIGTRAN (for Signaling Transport) is the standard Telephony protocol used to transport Signaling System 7 (SS7) signals over the Internet. SS7 signals consist of special commands for handling a telephone call.