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[8] [9] The broadband property of log-periodic antennas comes from its self-similarity. A planar log-periodic antenna can also be made self-complementary, such as logarithmic spiral antennas (which are not classified as log-periodic per se but among the frequency independent antennas that are also self-similar) or the log-periodic toothed ...
Arch Resources, previously known as Arch Coal, is an American coal mining and processing company. The company mines, processes, and markets bituminous and sub-bituminous coal with low sulfur content in the United States .
Learn about the causes, symptoms, and treatments of purpuric rash, a condition that can indicate serious health problems. See pictures and examples.
In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally distributed.Thus, if the random variable X is log-normally distributed, then Y = ln(X) has a normal distribution.
When many people think of seizures, they think of tonic-clonic seizures that cause unconsciousness and full-body muscle spasms. However, there are many types of seizures. Some can be so mild that ...
Grip the head of your penis. Pull your penis upward. Press on the area around the base of your penis at the same time. Hold this position for about 10 seconds.
Randgold Resources was a gold mining business operating mainly in Mali. Headquartered in Jersey , Channel Islands , it was listed on the London and the NASDAQ stock exchanges until it merged with Barrick Gold in December 2018.
A stye is a bump on the eyelid that is usually caused by a bacterial infection. Treatment can help to prevent the spread of the infection.