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In pytest, fixture scopes let the user define when a fixture should be called. There are four fixture scopes: function scope, class scope, module scope, and session scope. Function-scoped fixtures are default for all pytest fixtures, which are called every time a function having the fixture as a parameter runs.
Test fixtures can be set up three different ways: in-line, delegate, and implicit. In-line setup creates the test fixture in the same method as the rest of the test. While in-line setup is the simplest test fixture to create, it leads to duplication when multiple tests require the same initial data.
Mismatch loss in transmission line theory is the amount of power expressed in decibels that will not be available on the output due to impedance mismatches and signal reflections. A transmission line that is properly terminated, that is, terminated with the same impedance as that of the characteristic impedance of the transmission line, will ...
charge transfer switch A kind of charge pump circuit. charge-coupled device An imaging sensor or data storage device that represents a signal, or pixel, by the charge stored in a capacitor and is able to move that charge from one capacitor to the next. Chebyshev filter A form of filter that has a steep frequency selective characteristic. choke
Without the gel, the impedance mismatch in the transducer-to-air and the air-to-body discontinuity reflects almost all the energy, leaving very little to go into the body. The bones in the middle ear function as a series of levers, which matches mechanical impedance between the eardrum (which is acted upon by vibrations in air) and the fluid ...
Cyclic reading of sensor data up to 64 bit per slave; Transmission of status data, parameter, measured temperature value, configuration description, etc. Isochronal, real time capable data transmission; Bidirectional communication with two unidirectional lines; Point-to-point or multi-slave networks
Remote Device Management (RDM) is an addition to the DMX512 control protocol for stage lighting equipment, introduced in 2006. DMX512 was developed in the late 1980s as a standard protocol for lighting consoles to communicate with dimmers, but has since been used for more complex applications, including the control of intelligent lighting fixtures.
Communication is possible over a connection in spite of a duplex mismatch. Single packets are sent and acknowledged without problems. As a result, a simple ping command fails to detect a duplex mismatch because single packets and their resulting acknowledgments at 1-second intervals do not cause any problem on the network. A terminal session ...