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.
What are lipids made up of? Lipids are called fatty-acids because they consist of a non-polar tail [ with a fascinating variety of-CH2- lengths ] and an acid head. They are called fats when they are s â¦ traight-chained, or saturated, and they stack like toothpicks; they are solid at room temperature, and are mostly from animal origins.