crack development
11Macropore — Macropores are large diameter (more than 50 nm, see macroporous materials) conduits in the soil, created by such agents as plant roots, soil cracks, or soil fauna. Macropores increase the hydraulic conductivity of the soil, allowing water to… …
12Characterisation of pore space in soil — Soil is essential to most animals on the earth. It is a relatively thin crust where an even smaller portion contains much of the biological activity. Soil consists of three different phases. A solid phase (≈ 20%) that contains mainly minerals of… …
13Road surface — A road in the process of being resurfaced Road surface (British English) or pavement (American English) is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past… …
14HHP-8 — Infobox Locomotive name=HHP 8 caption= HHP 8 661 at BWI Rail Station powertype=Electric gauge=RailGauge|sg poweroutput=8,000 hp builder=Bombardier Transportation, Alstom railroad=Amtrak and MARC roadnumber=AMT 650 664; MARC 4910 4915… …
15Prenatal cocaine exposure — (PCE) occurs when a pregnant woman uses cocaine and thereby exposes her fetus to the drug. Crack baby was a term coined to describe children who were exposed to crack (cocaine in smokable form) as fetuses; the concept of the crack baby emerged in …
16materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
17Ceramic matrix composite — Fracture surface of a fiber reinforced ceramic composed of SiC fibers and SiC matrix. The fiber pull out mechanism shown is the key to CMC properties …
18china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …
19China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …
20solids, mechanics of — ▪ physics Introduction science concerned with the stressing (stress), deformation (deformation and flow), and failure of solid materials and structures. What, then, is a solid? Any material, fluid or solid, can support normal forces.… …
