concrete quality control
51DNA microarray — A DNA microarray (also commonly known as gene chip, DNA chip, or biochip) is a collection of microscopic DNA spots attached to a solid surface. Scientists use DNA microarrays to measure the expression levels of large numbers of genes… …
52np-chart — Originally proposed by Walter A. Shewhart Process observations Rational subgroup size n > 1 Measurement type Number nonconforming per unit Quality characteristic type Attributes data …
53De la Concorde overpass collapse — On September 30, 2006, part of an overpass (65 foot / 19.8 m section of a three lane overpass) (The Associated Press 2006a) collapsed in Laval, a suburb of Montreal, on Boulevard de la Concorde running over Autoroute 19. The collapse… …
54Wire saw — A wire saw A wire saw is a machine using a metal wire or cable for cutting. There are two types of wire saw machines: continuous (or endless or loop) and oscillating (or reciprocating). Sometimes the wire itself is referred to as a blade . The… …
55Jurassic 5 — Pour les articles homonymes, voir J5. Jurassic 5 Jurassic 5 …
56materials 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… …
57NEC — For other uses, see NEC (disambiguation). NEC Corporation 日本電気株式会社 Type Public Traded as TYO …
58Curtain wall — For defensive curtain walls in medieval buildings, see Curtain wall (fortification). Glass curtain wall of the Bauhaus Dessau A curtain wall is an outer covering of a building in which the outer walls are non structural, but merely keep out the… …
59Submittals (construction) — Submittals in Construction Management are shop drawings, material data, and samples. Product data submittals, samples, and shop drawings are required primarily for the architect and engineer to verify that the correct products will be installed… …
60Bridge maintenance — Maintenance of today s bridge infrastructure presents many unique challenges. Transportation engineering and maintenance personnel must maintain around the clock service to millions of people each year while maintaining millions of cubic meters… …
