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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>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <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>CONTROLLING REGIMES OF ELECTRICITY-SUPPLY SYSTEM WITH TWO-SIDED SUPPLY</title>
      <link>https://trid.trb.org/View/187329</link>
      <description><![CDATA[A T-section equivalent circuit is used to represent the segment of the supply network for an electrified railway between adjacent ac traction substations and an electric locomotive moving between them; this representation is used in conjunction with the instantaneous values of measured regime parameters to determine the instantaneous values of circuit parameters and the values optimal in terms of minimization of voltage deviations at the locomotive.]]></description>
      <pubDate>Mon, 28 Feb 1983 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/187329</guid>
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      <title>VERTICAL INSTABILITY OF AN ELECTRODYNAMIC SUSPENSION</title>
      <link>https://trid.trb.org/View/173946</link>
      <description><![CDATA[Vertical instability is considered for horizontal motion of a current frame over an electrically conducting plate of finite thickness. The addition to the frame-plate repulsion force due to the change in eddy currents in the presence of vertical oscillations is estimated.]]></description>
      <pubDate>Tue, 30 Mar 1982 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/173946</guid>
    </item>
    <item>
      <title>ECONOMIC VALIDATION OF NEED FOR DEVELOPMENT AND INTRODUCTION OF STREET CAR ARRESTORS WITH IMPROVED CHARACTERISTICS</title>
      <link>https://trid.trb.org/View/160162</link>
      <description><![CDATA[Problems pertaining to the fault rate or traction and auxiliary streetcar electric motors is considered for faults produced by various factors, including surge voltages.  The economic necessity for development and introduction of nonlinear-resistance arrestors with improved characteristics is demonstrated.]]></description>
      <pubDate>Wed, 30 Dec 1981 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/160162</guid>
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      <title>ANALYSIS OF ELECTRIC TRACTION SYSTEM REGIMES WITH FIXED OUTPUT POWER</title>
      <link>https://trid.trb.org/View/153251</link>
      <description><![CDATA[A method is proposed for designing electric dc traction systems for fixed characteristics of electrified vehicle mechanical power.  Expressions are given for instantaneous values and potential probable characteristics, currents, power losses; algorithm of minimizing the losses indicated is presented.]]></description>
      <pubDate>Mon, 09 Jun 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/153251</guid>
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      <title>FUNDAMENTALS OF THE THEORY AND DESIGN OF A LINEAR SYNCHRONOUS MOTOR FOR HIGH-SPEED GROUND TRANSPORT</title>
      <link>https://trid.trb.org/View/153257</link>
      <description><![CDATA[A simplified computational model of a linear synchronous motor containing no ferromagnetic elements is used as a basis for development of a theory and derivation of the basic laws determining the operation of such a motor in steady-state mode.  A vector diagram is constructed.  A numerical example is given.]]></description>
      <pubDate>Mon, 09 Jun 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/153257</guid>
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    <item>
      <title>DESIGN OF SUSPENSION SYSTEMS WITH MAGNETIC LEVITATION</title>
      <link>https://trid.trb.org/View/147598</link>
      <description><![CDATA[An analytic calculation method for an electromagnetic process in a linear motor is used as a basis for discussing the calculation of forces acting on a dc electromagnet with ferromagnetic core moving uniformly along a thin nonmagnetic metal plate.  Formulas are derived for the distribution of eddy current induced in the plate with motion of the electromagnet and the magnetic field in such a system.  An algorithm is given for calculating the field appearing when a permanent magnet moves along a conducting plate.  Sample calculations of the forces and the eddy-current field in the plate are given.]]></description>
      <pubDate>Mon, 11 Feb 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/147598</guid>
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    <item>
      <title>ANALYSIS OF CIRCUITS FOR DIRECT CAPACITIVE COMPENSATION ON ALTERNATING-CURRENT ELECTRICAL RAILROADS</title>
      <link>https://trid.trb.org/View/87213</link>
      <description><![CDATA[Results are expounded of calculation of the efficiency of various circuits for direct capacitive compensation in an electrical railroad network (a three-phase configuration with the compensation in the draining conductor, in the legs of the substation) from the point of view of the voltage mode and the quality of the electrical energy delivered to converter electric locomotives.  Recommendations are made concerning the fields of application of these circuits.]]></description>
      <pubDate>Tue, 31 Jul 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/87213</guid>
    </item>
    <item>
      <title>ADVANCES IN SCIENTIFIC-ENGINEERING PROGRESS IN THE DEVELOPMENT OF TRANSPORTATION AND ITS POWER ENGINEERING IN THE USSR</title>
      <link>https://trid.trb.org/View/87217</link>
      <description><![CDATA[A characterization is given of the attained level of scientific-engineering progress in the development of transportation and its power plants by the sixtieth anniversary of the Great October Socialist Revolution.  The indices of the increase of freight and passenger traffic in the USSR during the period from 1950 through 1975 are presented.  The most important features of scientific-engineering progress in the development of transportation are isolated and analyzed according to each type of transportation, and the principal parameters of modern transportation means that are used have been presented.]]></description>
      <pubDate>Tue, 31 Jul 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/87217</guid>
    </item>
    <item>
      <title>NUMERICAL SIMULATION OF LINEAR INDUCTION MOTORS FOR HIGH-SPEED TRANSPORTATION SYSTEMS</title>
      <link>https://trid.trb.org/View/87630</link>
      <description><![CDATA[A method is expounded for the numerical simulation of the electromagnetic processes in linear induction motors (LIM) with allowance for longitudinal fringing effects.  An algorithm is described for the solution of the system of differential equations obtained on the basis of the one-dimensional model of a LIM inductor, and the results of numerical simulation of a test motor prototype and a comparison of these results with experimental results are described.  The possibility is revealed of analyzing the electromagnetic processes of an LIM with allowance for the actual character of the current load of the exciter.]]></description>
      <pubDate>Wed, 11 Jul 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/87630</guid>
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      <title>PROBLEMS IN THE ELECTRIFICATION OF RAILROADS</title>
      <link>https://trid.trb.org/View/60488</link>
      <description><![CDATA[An historical analysis is given of the development of the idea of railroad electrification.  The question is raised of the necessity of increasing the voltage of the network supplying the electric locomotive.]]></description>
      <pubDate>Tue, 27 Dec 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/60488</guid>
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