primary structure


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primary structure

[′prī‚mer·ē ′strək·chər]
(aerospace engineering)
The main framework, of an aircraft including fittings and attachments; any structural member whose failure would seriously impair the safety of the missile is a part of the primary structure.
(biochemistry)
The sequence of amino acids in the molecule of a protein or a peptide.
(geology)
A structure, in an igneous rock, that formed at the same time as the rock, but before its final consolidation.
(organic chemistry)
The chemical structure of a polymer chain.

primary structure

Those structures of the airplane whose failure would seriously endanger the safety of the airplane. It includes the fuselage, wings, control surfaces, and engine mounts.
References in periodicals archive ?
1996) The primary structure of the major pepsinogen from the gastric mucosa of tuna stomach.
2]SA) and primary structure (COAN) carried the most importance for all application properties.
This primary structure carries purlins and rafters in the normal way, with the rafters strutted at the same angle as the struts on the tied portals, creating in effect an inverted ridge that acts as a continuous lantern because, above it, the real ridge is defined by a motorized greenhouse glazing system that can be thrown open on hot days to encourage cooling convection currents.
They have made huge strides by focusing on drive chain technology, but I think there is a shared understanding that in order to meet their future obligations they will have to take significant weight out of the primary structure.
1] suggested that Oc assay specificity should be validated in terms of the primary structure to which the antibodies bind and that unknown values be reported as a proportion to the normal mean range established in that specific assay.
This is the work under construction of a primary structure (slab on diaphragm walls), Necessary for the completion of a 619 ml long railway tunnel under the south doublet of the paris-charles-de-paris airport runways.
Methylation is a form of epigenetic modification that does not affect the primary structure of the genetic code, but rather affects secondary interactions that play a critical role in the regulation of gene expression.
The HBM Emile Dupont Foundation, the Genevaise Association of the Corner of the Earth and the City of Vernier decided to build two residential buildings (150 to 170 housing units) and a neighborhood house with a wooden primary structure, Minergie and energy label positive.
Composite materials making up 50% of the 787s primary structure, including the fuselage and wing.
The primary structure of steel arches was chosen to span a cavernous underground cistern, part of the city's drainage system, and avoid underwater foundations.
Kistler has completed significant K-1 production milestones, including production of primary structure and engine testing.