surface permeability
101Erosion — is the carrying away or displacement of solids (sediment, soil, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down slope movement in response to gravity or by living organisms (in the case …
102H5N1 genetic structure — is the molecular structure of the H5N1 virus s RNA.H5N1 is an Influenza A virus subtype. Experts believe it might mutate into a form that transmits easily from person to person. If such a mutation occurs, it might remain an H5N1 subtype or could… …
103Induction hardening — is a form of heat treatment in which a metal part is heated by induction heating and then quenched. The quenched metal undergoes a martensitic transformation, increasing the hardness and brittleness of the part. Induction hardening is used to… …
104valley — valleylike, adj. /val ee/, n., pl. valleys. 1. an elongated depression between uplands, hills, or mountains, esp. one following the course of a stream. 2. an extensive, more or less flat, and relatively low region drained by a great river system …
105theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… …
106Water table — The water table is the level at which the ground water pressure is equal to atmospheric pressure. It may be conveniently visualized as the surface of the ground water in a given vicinity. It usually coincides with the phreatic surface , but can… …
107Chemical biology — is a scientific discipline spanning the fields of chemistry and biology that involves the application of chemical techniques and tools, often compounds produced through synthetic chemistry, to the study and manipulation of biological systems.… …
108Marcellus Formation — Stratigraphic range: Middle Devonian …
109Klinkenberg correction — In petroleum engineering, a Klinkenberg correction is a procedure for calibration of permeability data obtained from a minipermeameter device. When using nitrogen gas for core plug measurements, the Klinkenberg correction is usually necessary due …
110immune system disorder — Introduction Disorders of the immune systemany of various failures in the body s defense mechanisms against infectious organisms (see table (Disorders of the immune system)). Disorders of immunity include immune deficiency diseases, such… …
