Knowledge in Signals
Signalling in Railways by Aman
Signals are created every where because the RAILWAY required a signals to stop and run the train and highways also required same thing
Aman Tripathi
nmr spectroscopy 1
Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique to observe local magnetic fields around atomic nuclei. The sample is placed in a magnetic field and the NMR signal is produced by excitation of the nuclei sample with radio waves into nuclear magnetic resonance, which is detected with sensitive radio receivers. The intramolecular magnetic field around an atom in a molecule changes the resonance frequency, thus giving access to details of the electronic structure of a molecule and its individual functional groups. As the fields are unique or highly characteristic to individual compounds, in modern organic chemistry practice, NMR spectroscopy is the definitive method to identify monomolecular organic compounds. Similarly, biochemists use NMR to identify proteins and other complex molecules. Besides identification, NMR spectroscopy provides detailed information about the structure, dynamics, reaction state, and chemical environment of molecules. The most common types of NMR are proton and carbon-13 NMR spectroscopy, but it is applicable to any kind of sample that contains nuclei possessing spin
Subham Bera
Signals and its representation
This file tells us about the detailed description of what signals are how they are used. It focuses on real life signals representation using fourier transforms.
Pranav Sundriyal
Signals and signal space
This file includes notes for the meaning of signals and its representation. It also has description for signals energy. It includes the classification of signals too.
Angle modulation and demodulation
This file contains detailed notes about angle modulation and demodulation. It includes topics such as non linear modulation, phase modulation(pm), frequency modulation(fm)