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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>DEVELOPMENT OF HIGH-ENERGY BATTERIES FOR ELECTRIC VEHICLES</title>
      <link>https://trid.trb.org/View/112344</link>
      <description><![CDATA[THE OBJECTIVE OF THE PROGRAM DESCRIBED IS TO DEVELOP THE TECHNOLOGY REQUIRED TO CONSTRUCT SECONDARY BATTERIES HAVING THE PERFORMANCE CAPABILITIES REQUIRED FOR POLLUTION-FREE ELECTRIC AUTOMOBILES. LITHIUM/SULFUR CELLS USING A MOLTEN LITHIUM HALIDE-CONTAINING ELECTROLYTE AND OPERATING AT 360 TO 390 C HAVE ACHIEVED CAPACITY DENSITIES OF UP TO 0.52 A-HR/SQ CM (ABOVE 1 V) AT A CURRENT DENSITY OF 0.52 A/SQ CM. THE CELL DEVELOPMENT PROGRAM IS SUPPORTED BY LABORATORY STUDIES IN VARIOUS AREAS. THE SOLUBILITY OF CATHODE MATERIALS IN VARIOUS ELECTROLYTES AND THE IDENTITY OF THE SOLUBLE SPECIES ARE STUDIED. PRELIMINARY RESULTS INDICATE THAT ELECTROLYTES CONTAINING ONLY FLUORIDE AND CHLORIDE ANIONS HAVE THE LOWEST SOLUBILITY FOR SULFUR-BEARING SPECIES. A SURVEY OF CANDIDATE SOLID ELECTROLYTES HAS LED TO THE INVESTIGATION OF THE LITHIUM FORM OF B- ALUMINA. INVESTIGATIONS WERE MADE OF THE CORROSION RATES OF VARIOUS MATERIALS AT 375 C, AND BATTERY DESIGN AND PERFORMANCE CALCULATIONS WERE CARRIED OUT FOR A 1075-LB LI/S BATTERY IN A 4300 1B ELECTRIC AUTOMOBILE. /AUTHOR/]]></description>
      <pubDate>Tue, 20 Aug 2002 00:00:00 GMT</pubDate>
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      <title>DEVELOPMENT OF A RAPID DRYING TRAFFIC PAINT SYSTEM USING MICROWAVE ENERGY</title>
      <link>https://trid.trb.org/View/108478</link>
      <description><![CDATA[RESULTS ARE DESCRIBED OF A RESEARCH CONTRACT AWARDED AN ELECTRONICS COMPANY TO DEVELOP A SUITABLE TRAFFIC PAINT AND TO DESIGN EQUIPMENT WHICH WOULD DRY THE TRAFFIC PAINT TO A STATE OF NO PICK-UP IN APPROXIMATELY ONE SECOND BY THE APPLICATION OF MICRO-WAVE ENERGY. AFTER SEVERAL MONTHS OF INVESTIGATION THE CONTRACTING COMPANY CONCLUDED IT WAS NOT TECHNICALLY FEASIBLE TO ACHIEVE THE OBJECTIVES WITH THE CONTRACT BECAUSE OF THE DIFFICULTY IN GENERATING A SUFFICIENTLY HIGH ENERGY INTENSITY AT THE DIELECTRIC INTERFACE OF THE PAINT AND PAVEMENT SURFACES. /AUTHOR/]]></description>
      <pubDate>Tue, 12 Apr 1994 00:00:00 GMT</pubDate>
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      <title>MODERN WELDING</title>
      <link>https://trid.trb.org/View/106590</link>
      <description><![CDATA[WELDING IS THE PROCESS OF UNITING TWO METALS BY ELIMINATING THE INTERFACE BETWEEN THEM. TRADITIONALLY, THIS HAS BEEN DONE BY A CASTING OPERATION, WITH FILLER METAL POURED INTO THE JOINT. FUSION WELDING STILL BULKS LARGE TODAY, BUT ADDED TO THE CONVENTIONAL ELECTRIC ARC THERE ARE NOW PLASMA ARCS, RESISTIVE SLAGS, AND HIGH-ENERGY BEAMS. MOREOVER, SO-CALLED SOLID-STATE WELDING, HIGH-FREQUENCY WELDING IN WHICH THE METAL PIECES ARE HEATED TO A PLASTIC (BUT STILL SOLID) STATE, THEN SQUEEZED TOGETHER. ANOTHER SOLID-STATE WELDING METHOD IS FRICTION WELDING IN WHICH TWO SURFACES TO BE JOINED ARE RUBBED RAPIDLY TOGETHER AND UNDER CONSIDERABLE PRESSURE. THE FRICTION BETWEEN THEM GENERATES THE NECESSARY TEMPERATURE FOR WELDING. PRESSURE BONDING AND EXPLOSIVE JOINING MAY ALSO BE USED.]]></description>
      <pubDate>Sun, 16 Jan 1994 00:00:00 GMT</pubDate>
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