cavities
31Microelectromechanical system oscillator — Microelectromechanical system (MEMS) oscillators are timing devices that generate highly stable reference frequencies. These reference frequencies are used to sequence electronic systems, manage data transfer, define radio frequencies, and… …
32Epithelium — This article is about the epithelium as it relates to animal anatomy. For the fungal structure of the same name, see Pileipellis. Epithelium Code TH H2.00.02.0.00001 Epithelium is one of the four basic types of animal tissue, along with… …
33Glass ionomer cement — A Glass Ionomer Cement (GIC) is one of a class of materials commonly used in dentistry as filling materials and luting cements. These materials are based on the reaction of silicate glass powder and polyalkeonic acid. These tooth coloured… …
34human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… …
35reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …
36Microwave cavity — A microwave cavity is a closed metal structure that confines electromagnetic fields in the microwave region of the spectrum. Such cavities act as resonant circuits with extremely low loss at their frequency of operation. Their Q factor may reach… …
37Injection molding — (British: moulding) is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Molten plastic is injected at high pressure into a mold, which is the inverse of the product s shape. After a product… …
38Red-cockaded Woodpecker — Taxobox name = Red cockaded Woodpecker status = VU | status system = IUCN3.1 trend = down image width = 200px image caption = Female Red cockaded Woodpecker regnum = Animalia phylum = Chordata classis = Aves ordo = Piciformes familia = Picidae… …
39Building insulation materials — A selection of insulation materials can aid in building insulation. All of these are based on standard principles of thermal insulation. Materials used to reduce heat transfer by conduction, radiation or convection are employed in varying… …
40Cavity magnetron — Magnetron with section removed (magnet is not shown) …
