Spread spectrum. In telecommunication and radio communication, spread-spectrum techniques are methods by which a signal (e.g., an electrical, electromagnetic, or acoustic signal) generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth.
Lipids are one of the four major groups of organic molecules; the other three being proteins, nucleic acids (DNA), and carbohydrates (sugars). Lipids are made up of the same elements as carbohydrates: carbon, hydrogen, and oxygen.
How are lipids formed? A: Lipids are organic compounds that can include substances, such as fats, waxes, phospholipids and steroids. Depending on the type of lipid formed, it can consist of different combinations of molecules including fatty acids, glycerol and phosphate group. Triglycerides, which are a type of fat, are made up of three fatty acids and one glycerol molecule, while phospholipids consist of two fatty acids, one glycerol molecule and a phosphate group.