Word Finder - matrix

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The womb.

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The material or tissue in which more specialized structures are embedded.

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An extracellular matrix, the material or tissue between the cells of animals or plants.

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Part of the mitochondrion.

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The medium in which bacteria are cultured.

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A rectangular arrangement of numbers or terms having various uses such as transforming coordinates in geometry, solving systems of linear equations in linear algebra and representing graphs in graph theory.

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A two-dimensional array.

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A grid-like arrangement of electronic components, especially one intended for information coding, decoding or storage.

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A table of data.

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A geological matrix.

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(archaeology and paleontology) The sediment surrounding and including the artifacts, features, and other materials at a site.

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The environment from which a given sample is taken.

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In hot metal typesetting, a mold for casting a letter.

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In printmaking, the plate or block used, with ink, to hold the image that makes up the print.

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• printing form

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The cavity or mold in which anything is formed.

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(dyeing) The five simple colours (black, white, blue, red, and yellow) from which all the others are formed.

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A binding agent of composite materials, e.g. resin in fibreglass.

A matrix of wood or iron is covered with successive layers of papers, pasted together so as to form pasteboard.

When mixed the concrete is carried at once to the position required, and if the matrix is quick-setting Portland cement this operation must not be delayed.

Above the diagram are given the names of the different classes of cast iron to which different stages in the change from graphite to cementite correspond, and above these the names of kinds of steel or cast iron to which at the corresponding stages the constitution of the matrix corresponds, while below the diagram are given the properties of the cast iron as a whole corresponding to these stages, and still lower the purposes for which these stages fit the cast iron, first because of its strength and shock-resisting power, and second because of its hardness.

If the matrix, however, is originally crystalline it does not seem probable that perlitic structure can develop in it.

Whatever matrix is used, it is almost invariably "diluted" with sand, the grains of which become coated with the finer particles of the matrix.

Related to this substance are " neuro-keratin," found in the medullary sheath of nerves, and " gorgonin," the matrix of the axial skeleton of the coral Gorgonia Cavolinii.

The matrix consists of n rows and n columns.

The matrix most commonly used is Portland cement, by far the best and strongest of them all.

The matrix should be Portland cement, and the nature of the aggregate is important.

Here let us recognize that what gives this transfer of carbon from graphite skeleton to metallic matrix such very great influence on the properties of the metal is the fact that the transfer of each 1%.

Colonies of Myconostoc enveloped in diffluent matrix (x 540).

As, in succeeding members of this same series of cast irons, more of the graphite of the initial skeleton changes into cementite and thereby becomes part of the metallic matrix, so the graphite skeleton becomes progressively thinner and more discontinuous, and the matrix richer in cementite and hence in carbon and hence equivalent first to higher and higher carbon steel, such as tool steel of I carbon, file steel of 1.50%, wire-die steel of 2% carbon and then to white cast iron, which consists essentially of much cementite with little ferrite.

Rather the full data or trajectory matrix, usually rectangular, is fitted directly to the vector of data elements.

Some enzymes may not participate directly in the cleavage of matrix proteins but instead are capable of activating other proteinases which degrade the matrix.

Back cover Go to article Tissue engineering involves culturing, growing and assembling cells and newly generated matrix in polymeric scaffolds.

This occurs in an area of the brain known as the ' germinal matrix ' adjacent to the cerebral ventricles.

With its unique whitening trays and Time Release Matrix whitening gel, CleverWhite is the most effective retail teeth whitening kit you can buy.

Yet, most people are in the Matrix - defending house prices with evangelical zeal.

A matrix has in many parts of mathematics a signification apart from its evaluation as a determinant.

This idea finds fuller expression in the algebra of matrices, as to which it must suffice to say that a matrix is a symbol consisting of a rectangular array of scalars, and that matrices may be combined by a rule of addition which obeys the usual laws, and a rule of multiplication which is distributive and associative, but not, in general, commutative.

By common usage the word " seal " is employed as a term to describe both the implement for making the impression, and the impression itself; but properly it should be confined to the latter, the graven implement being technically called the matrix.

Matrix Consult is an enthusiastic, innovative and progressive quantity surveying practice based in Central London.

In addition, a matrix is established to assess the risk of credible unintended interactions between reactants involved in this process.

Rhombic crystals on a crust of tiny calcite crystals covering basalt matrix.

Cayley gave a matrix algebra defining addition, multiplication, scalar multiplication and inverses.

These flat stones were recorded within a matrix of very mixed brown silty clay.

See also matrix singularity, matrix inverse, generalized inverse.

Dot matrix or inkjet printers are not really good enough and the ink from an inkjet tends to smudge fairly easily.

The Turbo Tri Short is made with fast wicking Matrix, a microfiber yarn blended with spandex for optimum stretch and moisture management.

Firstly, the matrix in which the cells of the stratum corneum are embedded is rich in lipid.

The standard method for defining subdivision algorithms uses a matrix notation.

A morphological character matrix was compiled for the fifteen terminal taxa.

Crystals have the form of small, sharply defined cubes of an oliveor grass-green colour, and occur together in considerable numbers on the matrix of the specimens.

Occasionally the rounded cracks extend from the matrix into some of the crystals especially those of quartz which have naturally a conchoidal fracture.

A well-developed cellular parenchyma forms a matrix in which the muscular, excretory and generative organs are imbedded.

Farther away from the granite the slates are not so much altered, but generally show small rounded or ovoid spots, which may be darker or lighter in colour than the matrix.

The matrix is the lime or cement, whose chemical action with the added water causes the concrete to solidify; and the aggregate is the broken stone or hard material which is embedded in the matrix.

Materials like tar and pitch are sometimes employed as a matrix; they are used hot and without water, the solidifying action being due to cooling and to evaporation of the mineral oils contained in them.

It should be free from dirt - that is to say, free from clay or soft mud, for instance, which prevents the cement adhering to its particles, or again from sewage matter or any substance which will chemically destroy the matrix.

When lime is used as a matrix, certain natural earths such as pozzuolana or trass, or, failing these, powdered bricks or tiles, may be used instead of sand with great advantage.

Many types of mixing machines are obtainable; the favourite type is one in which the materials are placed in a large iron box which is made to rotate, thus tumbling the matrix and aggregate over each other again and again.

Good Portland cement is so much stronger than any lime that there are few situations where it is not cheaper as well as better to use the former, because, although cement is the more expensive matrix, a smaller proportion of it will suffice for use.

If this carbon is all present as graphite, so that in cooling the graphite-austenite diagram has been followed strictly (§ 26), the constitution is extremely simple; clearly the mass consists first of a metallic matrix, the carbonless iron itself with whatever silicon, manganese, phosphorus and sulphur happen to be present, in short an impure ferrite, encased in which as a wholly distinct foreign body is the graphite.

We must grasp clearly this conception of metallic matrix and encased graphite skeleton if we are to understand this subject.

With further transfer of the carbon from the graphitic to the combined state, the matrix itself grows weaker (EF); but this weakening is offset in a measure by the continuing decrease of discontinuity due to the decreasing proportion of graphite.

First, if the skeleton which it forms is continuous, then its planes of junction with the metallic matrix offer a path of low resistance to the passage of liquids or gases, or in short they make the metal so porous as to unfit it for objects like the cylinders of hydraulic presses, which ought to be gas-tight and water-tight.

The majority of minerals are found commonly in masses which can with difficulty be recognized as aggregates of crystalline grains, and occur comparatively seldom as distinct crystals; but the diamond is almost always found in single crystals, which show no signs of previous attachment to any matrix; the stones were, until the discovery of the South African mines, almost entirely derived from sands or gravels, but owing to the hardness of the mineral it is rarely, if ever, water-worn, and the crystals are often very perfect.

In both these occurrences the evidence is certainly not sufficient to establish the presence of an original matrix.

In both occurrences, however, there is still the possibility that the eclogite or the basalt is not the original matrix, but may have caught up the already formed diamond from some other matrix.

Africa may be the result of the serpentinization of several such rocks, and although now both brecciated and serpentinized some of these may have been the original matrix.