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    <title>Transport Research International Documentation (TRID)</title>
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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>TOSSING CHARACTERISTICS AND THE SELECTION OF PRINCIPAL PARTICULARS FOR SEAGOING TIMBER CARRIERS</title>
      <link>https://trid.trb.org/View/402512</link>
      <description><![CDATA[Rolling characteristics are important to oceangoing timber carriers from the standpoint of stability reserve during the carriage of timber and of the effectiveness with which the vessel can be utilized to transport non-timber cargoes when violent heavy rolling develops as a result of high initial metacentric height. Rolling also produces heaving and pitching, as well as linear and rolling accelerations, in areas of a ship that are distant from the center of gravity. This can affect how crew members feel and their fitness for work. It is extremely important that the principal dimensions, dimension relationships and hull form coefficients selected during initial design be evaluated from the viewpoint of predicted linear acceleration and rolling characteristics. A methodology for carrying out this evaluation is developed.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
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      <title>EFFECT OF SHALLOW WATER ON THE PROPULSION PARAMETERS OF LARGE- CAPACITY SHIPS</title>
      <link>https://trid.trb.org/View/402513</link>
      <description><![CDATA[Most research on how shallow water affects ship propulsion characteristics is based on model tests. It has been shown that hydrodynamic characteristics derived in this way contain errors that result from a scale effect. Field test studies are therefore of vital scientific and practical importance. Such a study was carried out on the BORIS BUTOMA-type ore-oil carrier, the AKADEMIK SECHENOV. This ship has a displacement length of 244m, a beam of 39.8m, a summer draft of 15.65m, and a summer displacement of 132,640 tons. The tests are described and the conclusions drawn are presented.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
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      <title>RIGIDITY PROPERTIES OF COMBINATION ANCHOR SYSTEMS</title>
      <link>https://trid.trb.org/View/402514</link>
      <description><![CDATA[When making dynamic calculations relative to positioning floating structures that are secured in specific locations on bodies of water through the use of anchor systems, it is first necessary to plot the rigidity characteristics of individual anchor system members. A technique is examined for plotting these characteristics for a member from which a plummet is suspended. The member may be of the combination type, consisting of two chains or lines of different lengths and thicknesses.  The subject anchor chains are understood to be heavy, flexible, tensile and slack. The floating structure is a solid body that is displaced in a horizontal direction when acted upon by external forces.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
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      <title>PREDICTION OF THE PROCESS OF MARINE TURBINE BLADE EROSION</title>
      <link>https://trid.trb.org/View/402515</link>
      <description><![CDATA[The requirements that must now be considered in the optimization and automated design of turbine stages pose a need for the further evolution of the calculation techniques used to predict erosion. This article carries out this development, using the phenomenological theory of multicycle fatigue. A large volume of empirical data is considered and the theory is reformulated to take into account the features of the droplet-impact loading of the blades in wet-steam turbine stages. The method yields a satisfactory level of accuracy relative to the prediction of the fatigue failure parameters of materials and requires no detailed knowledge of the mechanism governing the processes occurring in the materials studied.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/402515</guid>
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      <title>EXPERIENCE IN DESIGNING AN AUTOMATIC CONTROL SYSTEM FOR FLASH-TYPE SHIPBOARD DESALINATING UNITS</title>
      <link>https://trid.trb.org/View/402516</link>
      <description><![CDATA[The evolution of shipboard power plants and self-contained hardware components poses the problem of raising the level of automation for such apparatus in order to improve their operational reliability and reduce the number of manhours spent on maintenance. This article deals with one aspect of this problem, addressing questions relating to the automation of multistage adiabatic flash-type shipboard desalinating units. These units are the most efficient, most widely used, and most structurally complex of desalinators. They have also been the least studied as to the reciprocal influence of the parameters involved and the processes that occur.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/402516</guid>
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      <title>TESTING OPTIC CABLE CONDUITS FOR VIBRATION RESISTANCE</title>
      <link>https://trid.trb.org/View/402517</link>
      <description><![CDATA[When designing shipboard control and data transmission systems involving fiber-optic-cable communication lines, allowance must be made for the dynamic characteristics of those lines. Equations are presented for calculating the power spectrum and correlation function of the interference that worsens the signal-to-noise ratio in such optical communication channels. The equations can be used to evaluate the reliability of the information being transmitted along fiber-optic cables under actual operating conditions.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/402517</guid>
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      <title>DETERMINATION OF THE STRUCTURE OF CONTROL SYSTEM PROGRAM MODULES FOR FLEXIBLE MANUFACTURING SYSTEMS</title>
      <link>https://trid.trb.org/View/402518</link>
      <description><![CDATA[As industry, including shipbuilding, turns toward flexible production engineering, the disparity that exists between practical requirements and procedural suggestions becomes increasingly evident. There is a need for a radical and unorthodox approach to the problem of comprehensive software design, since such software is the foundation for flexible manufacturing systems. The purpose of this article is to determine the structure of program modules based on the equations of state that describe data processing algorithms when the principal parameters of a member--its informational, operational and overall complexity--are known.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
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      <title>PRINCIPLES OF A DESIGN-PRODUCTION SYSTEM FOR THE MODULAR CONSTRUCTION OF SHIP SUPERSTRUCTURES</title>
      <link>https://trid.trb.org/View/402519</link>
      <description><![CDATA[In recent years, the concept of modular shipbuilding has primarily experienced growth with respect to specific functional areas: the aft end, where the engine room is located, the cargo section, and superstructures. The focus of this article is on Soviet efforts in the area of superstructures, units that are highly complex engineering structures that possess numerous intrinsic functional and dimensional interrelationships. It discusses the principles of modular construction and their application in the development of an integrated design-production supersystem that includes a technical information system, a process system and a transfer system--i.e. the process equipment resources, arranged in a specific manner, that are needed to manufacture modular assembly units.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
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      <title>TRENDS IN IMPROVING ALLOWABLE WEAR RATES FOR SHIP HULL MEMBERS</title>
      <link>https://trid.trb.org/View/402520</link>
      <description><![CDATA[As the mean age of ships increases, keeping a fleet in an operational condition with the minimum possible outlays of time and materials is becoming a priority. This poses a need for a wide range of preventive, engineering-related, organizational and operational measures aimed at the almost total elimination of hull member replacement work necessitating the removal of a ship from service, except for emergency situations that dictate reconditioning. The author examines trends in the improvement of Soviet standards documents relating to the volume of ship repairs resulting from wear and corrosion as part of a general set of measures aimed at reducing the number of ship repair operations: Examples of the effectiveness of using special standards for allowable hull member wear and tear for particular ship series are listed and individual cases are discussed.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/402520</guid>
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      <title>THE PASSENGER SHIP ANNA AKHMATOVA</title>
      <link>https://trid.trb.org/View/403934</link>
      <description><![CDATA[The Soviet, Polish-built passenger ship ANNA AKHMATOVA is described. The ship is designed to transport offshore-platform relief crews and to carry small cargoes of supplies and mail. Overall length is 88m and speed is 14 knots. The ship has a sea endurance of 25 days with respect to provisions and 6 with respect to fresh water. Cruising range is about 2,000 miles.  Thirty-six 2-berth and 4-berth cabins, accommodating 150 passengers, are provided.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/403934</guid>
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    <item>
      <title>PERMITTANCE OF THE HIGH-VOLTAGE ELECTRIC POWER SYSTEM OF THE DRILLING SHIP VALENTIN SHASHIN</title>
      <link>https://trid.trb.org/View/403935</link>
      <description><![CDATA[This article discusses capacitance measurements that were made on the high-voltage section of the 6-kilovolt electric power system of the drillship VALENTIN SHASHIN. The purpose was to determine the risk of shipboard fire from accidental short circuits. The particular risk investigated was that of direct grounding to the ship frame.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
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