impedance
See Also: least-cost path, stop impedance
[network analysis] A measure of the amount of resistance, or cost, required to traverse a path in a network, or to move from one element in the network to another.
Impedance Data Bases
While conductivity data bases in a variety of forms can be used, in this case study a computer file of conductivity data was used.
Impedance The amount of resistance (or cost) required to traverse through a portion of a network such as a line, or through one cell in a grid system.
impedanceThe amount of resistance (or cost) required to traverse a line from its origin node to its destination node or to make a turn (i.e., move from one arc through a node onto another arc).
impedance
A measure of the amount of resistance, or cost, required to traverse a path in a network, or to move from one element in the network to another.
Node impedances were not considered in detail in the national study, but are routinely used in urban network modeling because they may represent factors involving traffic intersections, turn restrictions or penalties, ...
For example, in pathfinding and allocation, calibration generally refers to assigning or calculating appropriate values to be entered in impedance and demand items.
If so, it moves there and incurs the 'cost' of such a movement (relative barrier weights of impedance). As the wave front proceeds, all possible paths are considered and the shortest distance assigned (least total impedance from the starting point).
Modifying direction and/or impedance along links and through intersections.
Identifying the optimal path as measured between two or more points according to a selected terms of measurement.
Complex, multipart turns
Dynamic impedance
Global weights
Exact and hierarchical routing
Network barrier support ...
Device selection and cable sizing is carried out to ensure compliance with IEE 17th Edition Wiring Regulations. Volt drop, earth loop impedance, disconnection times, short circuit calculations and discrimination checks are automatically performed.
This aims to avoid the overhead (sometimes referred to as the impedance mismatch) of converting information between its representation in the database (for example as rows in tables) and its representation in the application program (typically as ...
Headphones
Stereo earphones with built-in microphone
Frequency response: 20Hz to 20,000Hz
Impedance: 32 ohms ...
This is often referred to as route optimization. Attribute values may be as simple as minimal distance, or more complex involving a model using several attributes defining rate of flow, impedance, and cost.
 See also: Model, Analysis, Network, Information, GIS
  
|
RSS
