Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ ANALYSIS AND IMPROVED DESIGN OF GAMMA-RAY BACKSCATTERING DENSITY GAGES https://trid.trb.org/View/110054 Fri, 18 Nov 1994 00:00:00 GMT https://trid.trb.org/View/110054 RAILROAD ELECTROMAGNETIC COMPATIBILITY LOCOMOTIVE VOLUME 1, SUMMARY OF E-60 CP ELECTROMAGNETIC EMISSION YARD MEASUREMENTS https://trid.trb.org/View/161935 Wed, 18 Feb 1981 00:00:00 GMT https://trid.trb.org/View/161935 SOME POSSIBILITIES OF REGULATING CONTROLLED RECTIFIERS ON LOCOMOTIVES https://trid.trb.org/View/91762 Wed, 15 Aug 1979 00:00:00 GMT https://trid.trb.org/View/91762 TRANSFORMERS AND SMOOTHING REACTORS FOR A.C. TRACTION VEHICLES https://trid.trb.org/View/79385 Thu, 12 Oct 1978 00:00:00 GMT https://trid.trb.org/View/79385 USE OF TRANSFORMERS AND SMOOTHING COILS IN ALTERNATING CURRENT TRACTIVE UNITS https://trid.trb.org/View/72550 Wed, 26 Apr 1978 00:00:00 GMT https://trid.trb.org/View/72550 RESEARCH INTO POWER SUPPLY DEVICES AND RAILROAD ROLLING STOCK https://trid.trb.org/View/31849 Thu, 01 Dec 1977 00:00:00 GMT https://trid.trb.org/View/31849 ELECTRIFIED ROLLING STOCK WITH SEMICONDUCTOR RECTIFIERS https://trid.trb.org/View/31851 Thu, 01 Dec 1977 00:00:00 GMT https://trid.trb.org/View/31851 ELECTRONIC PROTECTION OF HIGH VOLTAGE LINES OF THE AUTOMATIC BLOCKING SYSTEM FROM SHORT CIRCUIT CURRENTS; FROM THE BOOKLET ELECTRIFICATION AND ENERGY SYSTEMS NO. 6(86) https://trid.trb.org/View/31795 Thu, 17 Nov 1977 00:00:00 GMT https://trid.trb.org/View/31795 ANALYSIS OF THE HARMONICS CAUSED BY SMOOTHING FILTERS https://trid.trb.org/View/59202 Sat, 29 Oct 1977 00:00:00 GMT https://trid.trb.org/View/59202 EXPERIMENTAL 3000 V D.C. LOCOMOTIVE OF THE ITALIAN STATE RAILWAYS WITH CHOPPER CONTROL https://trid.trb.org/View/53484 Thu, 04 Aug 1977 00:00:00 GMT https://trid.trb.org/View/53484 RESONANCE FILTERS FOR AC LOCOMOTIVES https://trid.trb.org/View/67248 Wed, 27 Apr 1977 00:00:00 GMT https://trid.trb.org/View/67248 DETERMINATION OF THE DISTURBING CURRENT AND SMOOTHING FACTOR OF FILTERS ON ELECTRIC TRACTIVE UNITS FITTED WITH IMPULSE CONVERTERS https://trid.trb.org/View/67259 Wed, 27 Apr 1977 00:00:00 GMT https://trid.trb.org/View/67259 FILTER CIRCUITS FOR HIGH POWER LEVELS https://trid.trb.org/View/65760 Wed, 15 Dec 1976 00:00:00 GMT https://trid.trb.org/View/65760 INCREASE IN ENERGY QUALITY ON AC TRACTION SUB-STATIONS https://trid.trb.org/View/31766 Tue, 23 Nov 1976 00:00:00 GMT https://trid.trb.org/View/31766