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1Academic Journal
المؤلفون: Porterfield, John D.
المصدر: The American Journal of Nursing, 1971 Jan 01. 71(1), 70-73.
URL الوصول: https://www.jstor.org/stable/3421560
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2Academic Journal
المصدر: Public Health Reports (1896-1970), 1962 Oct 01. 77(10), 862-870.
URL الوصول: https://www.jstor.org/stable/4591650
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3Academic Journal
المؤلفون: Porterfield, John D.
المصدر: Public Health Reports (1896-1970), 1952 Aug 01. 67(8), 741-746.
URL الوصول: https://www.jstor.org/stable/4588188
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4Academic Journal
المؤلفون: Porterfield, John D.
المصدر: Public Health Reports (1896-1970), 1958 Mar 01. 73(3), 261-264.
URL الوصول: https://www.jstor.org/stable/4590089
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5Academic Journal
المؤلفون: Porterfield, John D.
المصدر: Public Health Reports (1896-1970), 1959 Apr 01. 74(4), 303-308.
URL الوصول: https://www.jstor.org/stable/4590436
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6Academic Journal
المؤلفون: Fitch, Keith A., Porterfield, John D., Kleinschmidt, Earl E.
المصدر: The Sanitarian, 1952 Nov 01. 15(3), 125-130.
URL الوصول: https://www.jstor.org/stable/26325036
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7Academic Journal
المؤلفون: Porterfield, John D.
المصدر: American Journal of Health-System Pharmacy ; volume 27, issue 4, page 315-317 ; ISSN 1079-2082 1535-2900
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8Academic Journal
المؤلفون: Porterfield, John D.
المصدر: Journal of the Air Pollution Control Association ; volume 11, issue 4, page 175-177 ; ISSN 0002-2470
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9Academic Journal
المؤلفون: Porterfield, John D.
المصدر: Archives of Environmental Health: An International Journal ; volume 18, issue 2, page 290-292 ; ISSN 0003-9896
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10Academic Journal
المؤلفون: Porterfield, John D., Alexander, William T.
المصدر: Journal of the American Helicopter Society; Jul1970, Vol. 15 Issue 3, p22-34, 13p
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11Review
المؤلفون: Porterfield, John D.
المصدر: The Sanitarian, 1951 Jul 01. 14(1), 34-34.
Relation: Sanitary Food Handling Bernard E. Silver
URL الوصول: https://www.jstor.org/stable/26324965
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12Book
المؤلفون: PORTERFIELD, JOHN D.
المصدر: Proceedings of the First International Conference on Waste Disposal in the Marine Environment ; page 344-352
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13Periodical
المؤلفون: Porterfield, John D.
المصدر: JAMA: Journal of the American Medical Association; December 1965, Vol. 194 Issue: 12 p1295-1298, 4p
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14Academic Journal
المؤلفون: Porterfield, John D., Clark, Frank B.
المساهمون: KAMAN AEROSPACE CORP BLOOMFIELD CT
المصدر: DTIC AND NTIS
مصطلحات موضوعية: Helicopters, FLIGHT CONTROL SYSTEMS, HELICOPTER ROTORS, COMPOSITE ARMOR, TAIL HELICOPTER ROTORS, DAMAGE, VULNERABILITY, SURVIVAL(GENERAL), EROSION, REPAIR, AMMUNITION, REPLACEMENT, BEARINGS, PROTECTION, RELIABILITY, COSTS, AIRFOILS, ELASTIC PROPERTIES, ELASTOMERS, OH-58A AIRCRAFT, H-58 AIRCRAFT
وصف الملف: text/html
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15Academic Journal
المؤلفون: Porterfield,John D
المساهمون: KAMAN AEROSPACE CORP BLOOMFIELD CT
المصدر: DTIC AND NTIS
مصطلحات موضوعية: Helicopters, Transport Aircraft, MODULAR CONSTRUCTION, HELICOPTERS, GONDOLAS, ATTACK HELICOPTERS, COMPUTER AIDED DESIGN, SIZES(DIMENSIONS), FABRICATION, COMPATIBILITY, CONFIGURATIONS, AERODYNAMIC CHARACTERISTICS, EXTERNAL STORES, CARGO, MECHANICAL ENGINEERING, ASSEMBLY, AIR TRANSPORTATION, UTILITY AIRCRAFT, HEGS(Helicopter External Gondolas), HEGS-20 Modules, HEGS-10 Modules, CH-47D aircraft, UH-60A aircraft, Commonality, PE62209A, ASH76
وصف الملف: text/html
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16Academic Journal
المؤلفون: Porterfield,John D
المساهمون: KAMAN AEROSPACE CORP BLOOMFIELD CT
المصدر: DTIC AND NTIS
مصطلحات موضوعية: Structural Engineering and Building Technology, CARGO HANDLING, STRUCTURAL ENGINEERING, GONDOLAS, LOW COSTS, FLOORS, STRUCTURAL ANALYSIS, BEAMS(STRUCTURAL), MODULAR CONSTRUCTION, HELICOPTERS, LIGHTWEIGHT, TUBULAR STRUCTURES, METAL PLATES, MECHANICAL CABLES, SUPERSTRUCTURES, HEGS(Helicopter External Gondola System), WU244, ASH76, PE62209A
وصف الملف: text/html
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17Academic Journal
المؤلفون: Maloney,Paul F, Porterfield,John D
المساهمون: KAMAN AEROSPACE CORP BLOOMFIELD CONN
المصدر: DTIC AND NTIS
مصطلحات موضوعية: Helicopters, COMPOSITE STRUCTURES, TAIL HELICOPTER ROTORS, FLIGHT TESTING, FIBERGLASS, ALUMINUM ALLOYS, COST ANALYSIS, STRUCTURAL PROPERTIES, POLYAMIDE PLASTICS, TEST METHODS, FABRICATION, AIRFOILS, MAINTAINABILITY, RELIABILITY, LIFE CYCLE COSTS, LEADING EDGES, HUBS, POLYURETHANE RESINS, HONEYCOMB CORES, BENCH TESTS, UH-1H aircraft, H-1 aircraft, Elastic pitch beam tail rotors, ASBX1, PE63211A
وصف الملف: text/html
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18Academic Journal
المؤلفون: Porterfield,John D., Clark,Frank B.
المساهمون: KAMAN AEROSPACE CORP BLOOMFIELD CONN
المصدر: DTIC AND NTIS
مصطلحات موضوعية: Helicopters, Laminates and Composite Materials, Fluid Mechanics, COMPOSITE MATERIALS, HELICOPTERS, HUBS, TAIL HELICOPTER ROTORS, AERODYNAMIC CONFIGURATIONS, ACCEPTANCE TESTS, FLIGHT TESTING, COST EFFECTIVENESS, HELICOPTER ROTORS, ROTOR BLADES(ROTARY WINGS), AIRFOILS, MAINTAINABILITY, RELIABILITY, REPAIR, FEASIBILITY STUDIES, QUALIFICATIONS, ATTACHMENT, SHAFTS(MACHINE ELEMENTS), TRUSSES, ASSEMBLY, STRUCTURAL COMPONENTS, Elastic pitch beam tail rotors, Hub assemblies, OH-58A aircraft, H-58 aircraft, OH-6A aircraft, H-6 aircraft
وصف الملف: text/html
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19Academic Journal
المؤلفون: Porterfield,John D., Maloney,Paul F.
المساهمون: KAMAN AIRCRAFT BLOOMFIELD CONN
المصدر: DTIC AND NTIS
مصطلحات موضوعية: Helicopters, Transport Aircraft, AERODYNAMIC LOADING, LOADS(FORCES), FATIGUE(MECHANICS), LIFE EXPECTANCY(SERVICE LIFE), WEIGHT, TAKEOFF, CLIMBING, LEVEL FLIGHT, FLIGHT SPEEDS, DESCENT, AIRCRAFT LANDINGS, FREQUENCY, STATISTICAL DISTRIBUTIONS, FLIGHT TESTING, MISSION PROFILES, SIMULATION, CH-47A AIRCRAFT, CH-54A AIRCRAFT, H-54 AIRCRAFT, H-1 AIRCRAFT, H-47 AIRCRAFT, UH-1B AIRCRAFT
وصف الملف: text/html
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20Academic Journal
المؤلفون: Porterfield, John D., Maloney, Paul F.
المساهمون: KAMAN AEROSPACE CORP BLOOMFIELD CT
المصدر: DTIC AND NTIS
مصطلحات موضوعية: Helicopters, (*HELICOPTERS, ARMY OPERATIONS), LIMITED WAR, VIETNAM, LIFE EXPECTANCY, FLIGHT, CORRELATION TECHNIQUES, LOADS(FORCES), GUST LOADS, CH-47A AIRCRAFT, EVALUATION, FLIGHT SPECTRA, HELICOPTER OPERATIONS, H-47 AIRCRAFT, MISSIONS
وصف الملف: text/html
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