impulse excitation
31Poisson's ratio — ( ν ), named after Simeon Poisson, is the ratio of the relative contraction strain, or transverse strain (normal to the applied load), divided by the relative extension strain, or axial strain (in the direction of the applied load).When a sample… …
32Elastic modulus — An elastic modulus, or modulus of elasticity, is the mathematical description of an object or substance s tendency to be deformed elastically (i.e., non permanently) when a force is applied to it. The elastic modulus of an object is defined as… …
33Shear modulus — SI symbol: G SI unit: gigapascal Derivations from other quantities: G = τ / γ …
34IET — can mean any of the following: *Impulse excitation technique *Institution of Engineering and Technology (formerly Institution of Electrical Engineers and Institution of Incorporated Engineers) *University Institute of Engineering and Technology,… …
35Characterization (materials science) — Characterization, when used in materials science, refers to the use of external techniques to probe into the internal structure and properties of a material. Characterization can take the form of actual materials testing, or analysis, for example …
36Nuclear graphite — Core graphite from the Molten Salt Reactor Experiment Nuclear graphite is any grade of graphite, usually electro graphite, specifically manufactured for use as a moderator or reflector within nuclear reactors. Graphite is an important material… …
37Transient electromagnetics — Basic Principles = Transient electromagnetics, or time domain methods (TEM or TDEM), refer to a branch of geophysics, among other disciplines, that use an electromagnetic impulse excitation to investigate the subsurface. TEM methods are generally …
38human cardiovascular system — ▪ anatomy Introduction organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the… …
39cardiovascular disease — Introduction any of the diseases, whether congenital or acquired, of the heart and blood vessels (blood vessel). Among the most important are atherosclerosis, rheumatic heart disease, and vascular inflammation. Cardiovascular diseases are a …
40nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …
