Abstract:CYTOMEGALOVIRUS (CMV) APPEARS TO BE AN UBIQUITOUS VIRAL PATHOGEN. IT IS A HIGHLY OPPORTUNISTIC AGENT AND DUE TO ITS LATENCY, AS A MEMBER OF THE HERPES FAMILY OF VIRUSES, IT CAN RECUR ABRUPTLY, ERUPTING AS A LETHAL INFECTION. THE SPECTRUM THE MORBIDITY AND MORTALITY CAUSED BY CMV INCLUDES CONGENITAL,… more
Abstract:AN EXPANDING "TELECOMMUNICATIONS" TECHNOLOGY NOW MAKES IT POSSIBLE TO PERFORM TYPESETTING OPERATIONS WHILE REMAINING IN THE HOME AND MAKING USE OF A RELATIVELY INEXPENSIVE HOME COMPUTER AS AN INPUT TERMINAL. THIS OFFERS AN OPPORTUNITY FOR OLDER PERSONS, PARTICULARLY THOSE WHO LACK TRANSPORTATION OR… more
Abstract:A MAJOR PROBLEM WITH CURRENTLY AVAILABLE CHEMICAL AGENT FILTERS IS THE RESISTENCE TO AIR PERMEABILITY, OR BREATHABILITY. THIS RESISTANCE IS DUE TO THE RELATIVELY DENSE PACKING OF ACTIVATED CARBON MATERIAL TO ABSORB THE TOXIC CHEMICAL VAPORS. A PROGRAM IS PROPOSED TO DEVELOP ACTIVATED CARBON FIBER… more
Abstract:THIS IS PHASE I OF A PROGRAM TO DEVELOP AND EVALUATE NOVEL 4D COMPOSITES CONTAINING NON-ORTHOGONAL FIBER ORIENTATION. A 4D COMPOSITE WILL BE DESIGNED AND FABRICATED WITH IN-PLANE FIBER ANGLES OF 0 DEGREES/ 60 DEGREES PLUS A LOW CONCENTRATION OF THROUGH-THE-THICKNESS FIBERS. THIS CONSTRUCTION SHOULD… more
Abstract:THE OBJECTIVE OF THE PROPOSED STUDY IS TO DETERMINE THE FEASIBILITY OF FULLY DENSIFYING A SIALON VIA SINTER/HIP PROCESSING. SINTER/HIP IS AN INNOVATIVE APPROACH TO MATERIALS CONSOLIDATION WHICH INCORPORATES SINTERING AND CONTAINERLESS HIP'ING (HOT ISOSTATIC PRESSING) INTO A SINGLE, UNINTERRUPTED… more
Abstract:FABRICS CONSISTING OF ACTIVATED CARBON FIBERS ARE BEING DEVELOPED FOR USE IN CHEMICAL PROTECTIVE GARMENTS AS POTENTIAL REPLACEMENT FOR THE CURRENT COATED FOAM. THESE FABRICS NOT ONLY MUST ABSORB TOXIC CHEMICAL VAPORS ADEQUATELY BUT ALSO PROVIDE GOOD AIR MOISTURE PERMEABILITY TO MINIMIZE THE… more
Abstract:MANY AREAS OF ORTHOPAEDIC SURGERY WOULD BENEFIT FROM AN INJECTABLE,BIOCOMPATIBLE BONE CEMENT OR BONE REPLACEMENT MATERIAL WHICH COULD PROVIDE IMMEDIATE STRUCTURAL REINORCEMENT TO SKELETAL REGIONS AND THEN GRADUALLY BE INCORPORATED INTO HOST BONES. THE HARVARD MEDICAL SCHOOL BIOMECHAINCS LABORATORY… more
Abstract:THIS PROJECT WILL DEVELOP A TEST PROCEDURE TO DETERMINE STRENGHT OF ROCKET MOTOR CASE MATERIALS AT TEMPERATURES APPROACHING THE MELTING POINT OF THE MATERIALS TO EXTEND THEDATA PRESENTED IN MIL-HDBK-5C. LASER TECHNIQUES TO MEASURE STRAIN BY OBSERVING FLAGS ON THE TEST SPECIMENS AT ELEVATED… more
Abstract:HOT ISOSTATIC PRESSING OF SILICON NITRIDE AND SILICON CARBIDE IN NITROGEN PRODUCES STRUCTURAL CERAMICS WITH STRENGTH MORE THAN 20% ABOVE NORMAL HOT PRESSED STRUCTURES. THE MECHANISM OF STRENGTHENING BY THIS METHOD IS NOT UNDERSTOOD. EXAMINATION OF THE STRUCTURE OF THE BODIES INDICATE THE PRESENCE OF… more
Abstract:CARBON-CARBON COMPOSITES ARE IMPORTANT HIGH TEMPERATURE STRUCTURAL MATERIALS. BROADENING THE USE OF CARBON-CARBON MATERIALS IN OXIDIZING ENVIRONMENTS REQUIRES THE DEVELOPMENTOF THIN CRACK-FREE OXIDATION-RESISTANT COATINGS FOR HIGH- STRENGTH COMPOSITE SUBSTRATES. THE PRIMARY OBJECTIVE OF THISPROGRAM… more
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