In radio or wireless telephony, Private Line is a term trademarked by Motorola to describe their implementation of a Continuous Tone Coded Squelch System ( CTCSS ), a method of using low frequency subaudible tones to share a single radio channel among multiple users.

There are several ways of achieving this, including Dual Tone Multiple Frequency ( DTMF ) signalling and Continuous Tone Coded Squelch System ( CTCSS ).

CTCSS ( Continuous Tone-Coded Squelch System ) continuously superimposes any one of about 50 low-pitch audio tones on the transmitted signal, ranging from 67 to 254 Hz.

The crudest and oldest of these is called CTCSS, or Continuous Tone-Controlled Squelch System.

In telecommunications, Continuous Tone-Coded Squelch System or CTCSS is a circuit that is used to reduce the annoyance of listening to other users on a shared two-way radio communications channel.

P25 systems do not support Continuous Tone-Coded Squelch System ( CTCSS ) tone or Digital-Coded Squelch ( DCS ) codes for access control.

*: " Wireless Receiving System for Continuous Wave "

* Continuous Injection System, a fuel injection system developed by the Robert Bosch Group

* CSMP, IBM's Continuous System Modeling Program.

* Automatic Blowdown / Continuous Heat Recovery System: This system allows the boiler to blowdown only when makeup water is flowing to the boiler, thereby transferring the maximum amount of heat possible from the blowdown to the makeup water.

These included a Continuous Flow Electrophoresis System experiment to study the separation of biological components, and a Mono-disperse Latex Reactor experiment, to produce uniform micrometre-sized latex particles.

In the shuttle's mid-deck, a Continuous Flow Electrophoresis System and the Mono-disperse Latex Reactor flew for the second time.

Among these was the Continuous Flow Electrophoresis System, being flown for the fourth time.

During the mission, the STS-8 crew deployed the Indian National Satellite ( INSAT-1B ); operated the Canadian-built RMS with the Payload Flight Test Article ( PFTA ); operated the Continuous Flow Electrophoresis System ( CFES ) with live cell samples ; conducted medical measurements to understand biophysiological effects of space flight ; and activated four " Getaway Special " canisters.

The mission also carried five GAS canisters, six live rats in the middeck area, a Cinema-360 camera and a continuation of the Continuous Flow Electrophoresis System and Monodisperse Latex Reactor experiments.

* Cates, Cheryl and Cedercreutz, Kettil ( 2008 ), Leveraging Cooperative Education to Guide Curricular Innovation, The Development of a Corporate Feedback System for Continuous Improvement, Center for Cooperative Education Research and Innovation, Cincinnati, Ohio.

The McDonnell Douglas-sponsored Continuous Flow Electrophoresis System ( CFES ) experiment, using living cells, was more elaborate than the one flown on previous missions, and payload specialist Walker operated it for more than 100 hours during the flight.

Discovery < nowiki >'</ nowiki > s other mission payloads included the Continuous Flow Electrophoresis System ( CFES ) III, which was flying for sixth time ; two Shuttle Student Involvement Program ( SSIP ) experiments ; the American Flight Echo-cardiograph ( AFE ); two Getaway Specials ; a set of Phase Partitioning Experiments ( PPE ); an astronomical photography verification test ; various medical experiments ; and " Toys in Space ," an informal study of the behavior of simple toys in a microgravity environment, with the results being made available to school students upon the shuttle's return.

* Continuous Flow Electrophoresis System ( CFES )

Astronaut Charles Walker again operated the Continuous Flow Electrophoresis System, the third flight of this larger and improved equipment, to produce commercial pharmaceutical products in microgravity.

These experiments included the Continuous Flow Electrophoresis System ( CFES ), designed to investigate the separation of biological materials in a fluid according to their surface electrical charge.

During the mission, the STS-7 crew deployed satellites for Canada ( ANIK C-2 ) and Indonesia ( Palapa B1 ); operated the Canadian-built Remote Manipulator System ( RMS ) to perform the first deployment and retrieval exercise with the Shuttle Pallet Satellite ( SPAS-01 ); conducted the first formation flying of the Orbiter with a free-flying satellite ( SPAS-01 ); carried and operated the first U. S ./ German cooperative materials science payload ( OSTA-2 ); and operated the Continuous Flow Electrophoresis System ( CFES ) and the Monodisperse Latex Reactor ( MLR ) experiments, in addition to activating seven " Getaway Specials.

During the mission, the crew deployed satellites for Canada ( ANIK C-2 ) and Indonesia ( PALAPA B-1 ); operated the Canadian-built Remote Manipulator System ( RMS ) to perform the first deployment and retrieval exercise with the Shuttle Pallet Satellite ( SPAS-01 ); conducted the first formation flying of the Orbiter with a free-flying satellite ( SPAS-01 ); carried and operated the first U. S ./ German cooperative materials science payload ( OSTA-2 ): and operated the Continuous Flow Electrophoresis System ( CFES ) and the Monodisperse Latex Reactor ( MLR ) experiments, in addition to activating seven Getaway Specials, Mission duration was 147 hours before landing at Edwards Air Force Base, California, on June 24, 1983.

During the mission, crew members deployed the Indian National Satellite ( INSAT-1B ); operated the Canadian-built Remote Manipulator System ( RMS ) with the Payload Flight Test Article ( PFTA ); operated the Continuous Flow Electrophoresis System ( CFES ) with live cell samples ; conducted medical measurements to understand biophysiological effects on space flight and activated various Earth resources and space science experiments along with four " Getaway Special " canisters.

Continuous monitoring allows examination of how the blood glucose level reacts to insulin, exercise, food, and other factors.

* Continuous blowdown valve: This allows a small quantity of water to escape continuously.

# Continuous pulse oximetry ( SpO2 ): The placement of this device ( usually on one of the fingers ) allows for early detection of a fall in a patient's haemoglobin saturation with oxygen ( hypoxaemia ).

Continuous analysis allows adjustment of flow rate of the added gases to correct the mixture if it deviates from the specification.

* UCL ( London, UK ) Clean Materials technology group working on Continuous Hydrothermal Flow Synthesis

In 1999, a group of Continuous Global Positioning System sites registered a brief reversal of motion of approximately 2 centimeters ( 0. 8 inches ) over a 50 kilometer by 300 kilometer ( about 30 mile by 200 mile ) area.

Digby Denham led a group into the coalition government of Arthur Morgan, and the Continuous Ministry came to an end.

Continuous symmetries can be described by Lie groups while discrete symmetries are described by finite groups ( see Symmetry group ).

Phase 1 radios use Continuous 4 level FM ( C4FM ) modulation — a special type of 4FSK modulation — for digital transmissions at 4800 baud and 2 bits per symbol, yielding 9600 bits per second total channel throughput.

* Continuous automated broadcasts of hazardous weather advisories over select navigational radios

* Continuous simulation languages, viewing the model essentially as a set of differential equations.

* Continuous images of totally disconnected spaces are not necessarily totally disconnected, in fact, every compact metric space is a continuous image of the Cantor set.

In contrast to Continuous signal systems, where the behaviour of a system is often described by a set of linear differential equations, discrete-time systems are described in terms of difference equations.

For example, Continuous Kwik Cricket can be played by two groups of 10 or 12, with each batting for a set period of time, the Lord's Game can be played by two groups of four or five, and Pairs Kwik Cricket works for groups of 8, each playing as a pair and rotating the roles ( batsmen ; bowler and wicket-keeper ; leg side and off side fielders ).

Continuous quantities possess a particular structure that was first explicitly characterized by Hölder ( 1901 ) as a set of axioms that define such features as identities and relations between magnitudes.

Because BC generally has lower levels of pollution than the standards set by the Environmental Protection Act, the CI / KCAC (" Continuous Improvement " and " Keeping Clean Areas Clean ") principle of the federal strategy is of special importance.

Continuous spatial automata resemble continuous automata in having continuous values, but they also have a continuous set of locations rather than restricting the values to a discrete grid of cells.