Advances in sterilization and decontamination : a survey submitted to National Aeronautics and Space Administration, Langley Research Center, Hampton, Virginia /

On cover: Technology utilization.

Recent advances in structures for hypersonic flight : proceedings of a symposium held at Langley Research Center, Hampton, Virginia, September 6-8, 1978.

Includes bibliographical references.

Proceedings of the SCAR Conference, held at Langley Research Center, Hampton, Virginia, November, 9-12, 1976. --

Includes bibliographical references.

14th Aerospace Mechanisms Symposium : proceedings of a symposium held at NASA Langley Research Center, Hampton, Virginia, May 1-2, 1980 /

Includes bibliographies.

Numerical grid generation techniques : proceedings of a workshop held at NASA Langley Research Center, Hampton, Virginia, October 6-7, 1980 /

Includes bibliographical references.

Research in nonlinear structural and solid mechanics : keynote address and panel discussion presented at a symposium sponsored by NASA Langley Research Center, Hampton, Virginia, and the George Washington University, Washington, D.C., in cooperation with the National Science Foundation, the American Society of Civil Engineers, and the American Society of Mechanical Engineers, and held at Washington, D.C., October 6-8, 1980 /

Includes bibliographical references.

High Reynolds number research, 1980 : proceedings of a workshop held at NASA Langley Research Center, Hampton, Virginia, December 9-11, 1980 /

Includes bibliographical references.

Computational methods for structural mechanics and dynamics : proceedings of a workshop ... held at NASA Langley Research Center, Hampton, Virginia, June 19-21, 1985 /

Includes bibliographical references.

Shreds and patches of history, found mostly in Virginia,

"No. 27."

Analisi e valutazione delle performance acustiche degli aeromobili nella fase di atterraggio

Nella tesi si analizzano le principali fonti del rumore aeronautico, lo stato dell'arte dal punto di vista normativo, tecnologico e procedurale. Si analizza lo stato dell'arte anche riguardo alla classificazione degli aeromobili, proponendo un nuovo indice prestazionale in alternativa a quello indicato dalla metodologia di certificazione (AC36-ICAO) Allo scopo di diminuire l'impatto acustico degli aeromobili in fase di atterraggio, si analizzano col programma INM i benefici di procedure CDA a 3° rispetto alle procedure tradizionali e, di seguito di procedure CDA ad angoli maggiori in termini di riduzione di lunghezza e di area delle isofoniche SEL85, SEL80 e SEL75.