Search results
Results from the WOW.Com Content Network
Concrete Mathematics: A Foundation for Computer Science, by Ronald Graham, Donald Knuth, and Oren Patashnik, first published in 1989, is a textbook that is widely used in computer-science departments as a substantive but light-hearted treatment of the analysis of algorithms.
Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]
The ultimate strength of concrete is influenced by the water-cementitious ratio (w/cm), the design constituents, and the mixing, placement and curing methods employed.All things being equal, concrete with a lower water-cement (cementitious) ratio makes a stronger concrete than that with a higher ratio. [2]
ISTE released the first version of the Student Standards in 1998 under the name National Educational Technology Standards (NETS). At that time, the standards focused on technology skills in students. [1] Standards for teachers and administrators followed in 2000 and 2001, respectively.
The National Concrete Masonry Association (NCMA) is a United States trade association of manufacturers of concrete and masonry products. [2] The association was founded in 1918. NCMA publishes methods and specifications, which are used by the industry, and are cited within professional manuals.
A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving ( see below ).
in achievement, the definition of a good education is based on the results on standardized tests in reading and mathematics, for which children are tested in grades 3 through 8. “If a child fails the test, she is judged not to have received a good education from the school. If the school does not make
In philosophy and the arts, a fundamental distinction exists between abstract and concrete entities. While there is no universally accepted definition, common examples illustrate the difference: numbers , sets , and ideas are typically classified as abstract objects, whereas plants , dogs , and planets are considered concrete objects.