A plastometric method for estimating the coking properties of coals.


Related Terms

ORTHOTROPIC

Having elastic properties such as those of timber, that is, with considerable variations of strength in two or more directions perpendicular to one another.

ORDER OF PHASE TRANSITION

A phase transition in which there is a latent heat and an abrupt change in properties, such as in density, is a first-order transition; if there is not such a change, the order of the transition is one greater than the lowest derivative of such properties with respect to temperature which has a discontinuity.

NONDESTRUCTIVE EVALUATION

A technique for probing and sensing material structure and properties without causing damage (as opposed to revealing flaws and defects).

NN JUNCTION

In a semiconductor, a region of transition between two regions having different properties in n-type semiconducting material.

NEUROMORPHIC ENGINEERING

Use of the functional principles of biological nervous systems to inspire the design and fabrication of artificial nervous systems, such as vision chips fluid-content properties down a wellhole by neutron bombardment and detection of resultant radiation (neutrons or gamma rays). Also known as neutron logging.

NETWORK ANALYSIS

1. Derivation of the electrical properties of a network, from its configuration, element values, and driving forces. 2. An analytic technique used during project planning to determine the sequence of activities and their interrelationship within the network of activities that will be required by the project. Also known as network planning.

MULLING

The combining of clay, water, and sand, prior to molding, by compressing with a roller to ensure development of optimum sand properties by the adequate distribution of ingredients.

L-5 TEST

An engine test in a General Motors diesel engine to determine detergency, corrosiveness, ring sticking, and oxidation stability properties of lubricating oils.

LIQUID SEMICONDUCTOR

An amorphous material in solid or liquid state that possesses the properties of varying resistance induced by charge carrier injection.

LESLIE CUBE

A metal box, with faces having different surface finishes, in which water is heated and next to which a thermopile is placed in order to compare the heat emission properties of different surfaces.

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