Unit

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unit

1. a mechanical part or integrated assembly of parts that performs a subsidiary function
2. a complete system, apparatus, or establishment that performs a specific function
3. the amount of a drug, vaccine, etc., needed to produce a particular effect
4. a standard measure used in calculating alcohol intake and its effect
5. Maths
a. the first position in a place-value counting system, representing a single-digit number
b. having a value defined as one for the system
6. Maths logic a set having a single member
7. NZ a self-propelled railcar
www.psigate.ac.uk/newsite/reference/units.html
www.ex.ac.uk/cimt/dictunit/dictunit.htm
www.unc.edu/~rowlett/units/index.html

Unit

 

in technology, a consolidated unified (normalized) assembly of a machine or complex of machines that possesses complete interchangeability and independently accomplishes isolated functions. A unit is characterized by electric motors, reducers, pumps and so forth. Sometimes the term “unit” refers to a combination of two or more machines.


Unit

 

In the theory of algebraic numbers and in the theory of algebraic functions, a divisor of unity is called a unit, that is, a is a unit if there exists an element b such that ab = 1.

unit

[′yü·nət]
(engineering)
An assembly or device capable of independent operation, such as a radio receiver, cathode-ray oscilloscope, or computer subassembly that performs some inclusive operation or function.
(mathematics)
An element of a ring with identity that has both a left inverse and a right inverse.
(ordnance)
Any military element whose structure is prescribed by competent authority, such as a table of organization and equipment; specifically, part of an organization.
A standard of basic quantity into which an item of supply is divided, issued, or used.
(physics)
A quantity adopted as a standard of measurement.
References in periodicals archive ?
When these CT images were reinterpreted in a blinded and standardized fashion using a calcium threshold of 100 Hounsfield Units, the sensitivity was 70%, and the specificity was 71% (25).
Using the experimental data of density and elastic modulus for scapular bone [14], the purpose of this study was to formulate a relationship between CT gray value (H) in Hounsfield Units and apparent density ([rho]), and between apparent density ([rho]) and elastic modulus (E), by regression analyses.
If the mass has an attenuation value of less than 10 Hounsfield units and is between 4 and 6 cm in diameter, the patient should be reexamined every 6 months at least three times.
A positive electron beam computed tomography test result is considered to be a total coronary artery calcium score in excess of 30 Hounsfield units, added Dr.
Preliminary data support good correlation between Hounsfield units (HU) in the renal parenchyma on virtual unenhanced and true unenhanced images.
to establish the objective criteria for the HMCA sign, the authors concluded that an absolute attenuation value of 43 Hounsfield units (HU) of the abnormal MCA and a ratio of more than 1.
On CT imaging, pneumatocysts contain uniformly low attenuation, in the range of -580 to -950 Hounsfield units (HU).
Standard Uptake Values (SUV) and Hounsfield units are similarly calculated for PET, CT and PET/CT fused images.