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Many of the measurement and control unit manufacturers signed up to the Fieldbus consortium but rather than one standard emerging each manufacturer promoted their own 'standard' leading to a myriad, and confusing, range of physical and logical systems. Modern process control networks rely on Ethernet, TCP/IP, and Microsoft Windows technology. [1]
The National Institute of Dental and Craniofacial Research carried out further research into dental care for minorities and found that black and Hispanic families in lower-income areas had much higher incidences of tooth decay. [12] Similar research shows that poor dental hygiene directly affects educational abilities and school attendance. [13]
A networked control system (NCS) is a control system wherein the control loops are closed through a communication network.The defining feature of an NCS is that control and feedback signals are exchanged among the system's components in the form of information packages through a network.
An ICD is the umbrella document over the system interfaces; examples of what these interface specifications should describe include: The inputs and outputs of a single system, documented in individual SIRS (Software Interface Requirements Specifications) and HIRS (Hardware Interface Requirements Specifications) documents, would fall under "The Wikipedia Interface Control Document".
An industrial control system (ICS) is an electronic control system and associated instrumentation used for industrial process control. Control systems can range in size from a few modular panel-mounted controllers to large interconnected and interactive distributed control systems (DCSs) with many thousands of field connections.
A distributed control system (DCS) is a computerized control system for a process or plant usually with many control loops, in which autonomous controllers are distributed throughout the system, but there is no central operator supervisory control. This is in contrast to systems that use centralized controllers; either discrete controllers ...
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Consolidation among IDNs in the United States has critics who say these networks may actually be trending the cost curve upward. An interview of health insurers regarding Partner's Healthcare proposed acquisition of the Care New England Health System, for example, exposed the trepidation insurers have regarding IDN leverage over payers. [9]