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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <title>Remote Maintenance Monitoring System-Concentrator Progress Report</title>
      <link>https://trid.trb.org/View/2717167</link>
      <description><![CDATA[The purpose of this report is to discuss enhancements made to the Remote Maintenance Monitoring System (RMMS) concentrator.]]></description>
      <pubDate>Sat, 11 Jul 2026 16:25:55 GMT</pubDate>
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      <title>Remote Maintenance Monitoring System Concentrator</title>
      <link>https://trid.trb.org/View/2714053</link>
      <description><![CDATA[A Remote Maintenance Monitoring System (RMMS) concentrator has been designed, developed, and tested at the Federal Aviation Administration (FAA) Technical Center. The concentrator is a microcomputer-based device that collects, stores, displays, and retransmits to a Maintenance Processor Subsystem, performance information obtained from many remote navigational aid monitors. The concentrator consists of a communications subsystem and a data subsystem. Due to its design features, the concentrator may be reconfigured to handle several RMMS tasks. By incorporating operating system software into the data subsystem, the concentrator becomes a low-cost, general-purpose minicomputer.]]></description>
      <pubDate>Tue, 07 Jul 2026 17:29:53 GMT</pubDate>
      <guid>https://trid.trb.org/View/2714053</guid>
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      <title>A Model Generator for Simulation and Testing of RDCs</title>
      <link>https://trid.trb.org/View/1432112</link>
      <description><![CDATA[Simulation of avionics equipment is essential due to the complex nature of its development and integration process. Throughout the development process, executable component models are used to demonstrate the feasibility and the compliance of the system design with respect to its functional requirements. In later development phases, there is the need for system integration tests where a mix of real and simulated equipment is used to verify the overall system behavior. Since Boeing 777 and Airbus A380 programs, IMA1 technology has entered several civil aircraft systems. In recent programs like Boeing 787 and Airbus A350 the number of IMA components has significantly increased. In this paper we present a simulation model for a new IMA component - the common Remote Data Concentrator (CRDC)2, which is developed by Thales-Diehl for the Airbus A350 XWB. Building simulation models of IMA components is in general a challenging task due to their complexity on both software and hardware level. The particular challenges faced here, have their roots in two areas. The first is due to the configurable functional behavior of the CRDC, whilst the second comes from its versatile and configurable interface. Together, this leads to a potentially infinite number of unique model instances where each instance constitutes a different CRDC configuration. Moreover, since simulating IMA components always requires stimulation from external models and/or real equipment connected through a set of standardized interfaces, another important aspect is the need for a standardized model integration process which ensures compliance among all system component models and which facilitates an automated integration on a system simulation platform.         Our solution is a software tool called SiToRDC which comprises (1) a model generator and (2) a functional core model of the CRDC. The model generator is used to process a user-supplied set of configuration files which parameterize the interface and functions of the core model. The result of the generation process is a CRDC model instance provided as a set of ANSI C-language modules. Those modules are then distributed to simulation workshops where platform integration will take place. We will describe the principal architecture of the SiToRDC toolchain and show how to build CRDC models for different simulation workshops.       ]]></description>
      <pubDate>Mon, 09 Jan 2017 11:11:50 GMT</pubDate>
      <guid>https://trid.trb.org/View/1432112</guid>
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      <title>ECONOMIC ASPECTS OF OCEAN THERMAL ENERGY CONVERSION</title>
      <link>https://trid.trb.org/View/60703</link>
      <description><![CDATA[Ocean Thermal Energy Conversion (OTEC) technology is reviewed and economic issues are identified and discussed. Because the plant is modular and operates in the marine environment, major components can be manufactured in existing shipyards and can be operated by established marine contractors and maritime labor.  The process of large scale implementation is investigated by conceptualizing a Technology Delivery System (TDS) and examining the impact of various design features and government incentives.]]></description>
      <pubDate>Mon, 30 Jan 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/60703</guid>
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      <title>THE DEVELOPMENT AND DEMONSTRATION OF AN UNDERWATER OIL HARVESTING TECHNIQUE</title>
      <link>https://trid.trb.org/View/10129</link>
      <description><![CDATA[Analytical studies and harbor tests were conducted to determine the feasibility of harvesting oil beneath the surface of the water with the use of inclined planes.  The analytical and laboratory investigations provided basic information to design and build units and showed that this kind of device could harvest both light and heavy oils between 3/4 knot and 2 knots. Information was obtained regarding the geometry of the device.  Tests showed that oil could be collected in waves without seriously affecting efficiency.  A 22-foot-long unit was designed, built, and domonstrated in Boston Harbor.  The results showed that the fixed-plane concept is highly effective in areas where the vessel can travel through the slick.  Recovered oil is virtually water free and the unit recovered between 70% and 85% of the oil presented to it. The fixed inclined plane Submerged Hydrodynamic Oil Concentrators demonstrator unit works between 3/4 knot and 2 knots.  (Modified author abstract)]]></description>
      <pubDate>Wed, 14 Nov 1973 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/10129</guid>
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