- Отрасли: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
A chemical compound that is destructive to certain types of living organisms.
Industry:Aviation
A chemical compound that is stable under some conditions, but unstable under others.
Industry:Aviation
A chemical compound used as a depolarizer in carbon-zinc batteries. Hydrogen gas forms in bubbles on the carbon rod when electrons flow to it from the zinc can. If these bubbles are allowed to remain on the rod, they will insulate it from the electrolyte and shut off the flow of electrons.
Manganese dioxide absorbs the hydrogen gas, allowing the electrolyte to remain in contact with the carbon rod and keep the electrons flowing.
Industry:Aviation
A chemical compound used in a refrigerator or air conditioning system to absorb heat, then carry it to another location where it is given up to the outside air.
Industry:Aviation
A chemical compound which contains two atoms of oxygen. Carbon dioxide contains one atom of carbon and two atoms of oxygen (CO2).
Industry:Aviation
A chemical compound, such as aluminum oxide (Al2O3), that is composed of oxygen and another element, in this case, aluminum.
Industry:Aviation
A chemical element added to silicon or germanium to give it specific electrical characteristics. Arsenic, phosphorus, and antimony are pentavalent elements, elements having five electrons in their valence shell. When these elements are used as impurities, they form N-type material because there are more electrons than are needed to form covalent bonds within the material. Atoms of N-type material are called donor atoms.
Aluminum, boron, gallium, and indium are elements having only three electrons in their valence shell, and when used as impurities with silicon or germanium, produce P-type materials. P-type materials have fewer electrons than are needed to form covalent bonds, and they accept electrons from other materials. Atoms of P-type materials are called acceptor atoms.
Industry:Aviation
A chemical element in the actinide series. The symbol for americium is Am, its atomic number is 95, and the mass number of its isotope having the longest half life is 243.
Industry:Aviation
A chemical element mixed with a base metal to form an alloy. The alloying agents change the characteristics of the base metal.
Industry:Aviation
A chemical element with five electrons in its valence shell. Nitrogen, arsenic, antimony, and bismuth are pentavalent elements.
Industry:Aviation
