Wind turbines convert wind energy to electricity for distribution. Conventional horizontal axis turbines can be divided into three components: 1  The rotor component, which is approximately 20% of the wind turbine cost, includes the blades for converting wind energy to low speed rotational energy.
Blood Banking & Donation. Blood banking refers to the process of collecting, separating, and storing blood. The first U.S. blood blank was established in 1936. Today, blood banks collect blood and separate it into its various components so they can be used most effectively according to the needs of the patient.
Quick Answer. The length of time that blood samples can be kept refrigerated varies depending on the type of blood sample and the tests that are run on it. Blood can be stored as whole blood or as blood fractions and with or without preservatives. Different types of analyses require different storage conditions.