spreading factor


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hy·a·lu·ron·i·dase

(hī'ă-lū-ron'i-dās),
1. Term applied loosely to hyaluronate lyase, hyaluronoglucosaminidase, and hyaluronoglucuronidase, one or more of which are present in sperm, the testes, and other organs, bee and snake venoms, type II pneumonococci, and certain hemolytic streptococci. Synonym(s): diffusing factor, Duran-Reynals permeability factor, Duran-Reynals spreading factor, invasin, spreading factor
2. A soluble enzyme product prepared from mammalian testes; it is used to increase the effect of local anesthetics and to permit wider infiltration of subcutaneously administered fluids, is suggested in the treatment of certain forms of arthritis to promote resolution of redundant tissue, is used to speed the resorption of traumatic or postoperative edema and hematoma, is used in combination with collagenase to dissociate organs, such as liver and heart, into viable cell suspensions, and in histochemistry is used on tissue secretions to verify the presence of hyaluronic acid or chondroitin sulfates.

spreading factor

(sprĕd′ĭng)

spreading factor

The hyaluronidase made by Bacillus anthracis. See: hyaluronidase
See also: factor
References in periodicals archive ?
Effects of jamming powers, spreading factors, and number of users are shown.
Since a spreading factor of 64 was selected, the effective data rate used in our model was 96 kbit/s (only pilot channel consisting of eight symbols per slot was considered for DPCCH).
Hence the probability of error depends on the number of users (N), spreading factor (2[beta]), estimated channel coefficients ([mathematical expression not reproducible]), the signal to noise ratio ([E.sub.b]/[N.sub.0]) and total number of receiving antennas (M).
1 is the total number of bits per downlink DPCH slot and it is related to the spreading factor (SF) as SF = 512/[2.sup.k].
Generally, code spurs will be generated whenever a composite signal containing energy in three or more codes from the same orthogonal set (at the same spreading factor) is passed through a nonlinear function, such as amplitude clipping or amplifier compression.
Each DPDCH/DPCCH is spread by a channelization code, also known as orthogonal variable spreading factor (OVSF) code, and its amplitude can he individually adjusted.
It has the power to inhibit the enzyme hyaluronidase which is known as the 'spreading factor', which breaks down the ground substance -- the intracellular cement that holds body cells together -- thereby allowing the toxin to spread throughout the body.
To obtain the peak code-domain error in line with the standard, the vector error between the measured signal and the reference signal is determined and projected to the codes of a specific spreading factor. With its frequency range up to 26 GHz and measurement speed of 25 sweeps per second, the FSIQ is suitable for use in development and production environments alike.