Results 81 to 90 of about 223,735 (247)
Pterodactyl: Development and Comparison of Control Architectures for a Mechanically Deployed Entry Vehicle [PDF]
The Pterodactyl project, seeks to advance the current state-of-the-art for entry vehicles by developing novel guidance and control technologies for Deployable Entry Vehicles (DEVs) that can be applied to various entry vehicle configurations.
Barton, Jeffrey D. +3 more
core +1 more source
Low‐Velocity Impact Response of Nacre‐Inspired E‐Glass/Epoxy Composites With Varying Platelet Sizes
Polymer Composites, EarlyView.Impact response of nacre‐inspired E‐glass/epoxy composites with different platelet sizes. ABSTRACT This study explores the low‐velocity impact behavior of nacre‐inspired biomimetic platelet composites (NIBPC), using low‐cost E‐glass fiber in chopped strand mat (CSM) form as reinforcement and epoxy resin as the matrix.
B. M. Vaghasia +3 more
wiley +1 more source
NASA aviation safety reporting system [PDF]
The origins and development of the NASA Aviation Safety Reporting System (ASRS) are briefly reviewed. The results of the first quarter's activity are summarized and discussed.
Billings, C. E. +4 more
core +1 more source
A Structural Integrity Perspective for the Assessment of Ageing in Composite Solid Propellants
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Composite solid propellants (CSPs) are critical materials in the defence and aerospace industries, known for their complex mechanical behaviour and susceptibility to ageing. This study explores the application of Principal Component Analysis (PCA) to discriminate the ageing degradation of CSPs based on structural integrity parameters.
Mario Martínez +3 more
wiley +1 more source
This note investigates the effect of high altitude or low atmospheric pressure upon the operation of an engine and the effect of the low pressure and lack of oxygen and of the very low temperatures upon the pilot and upon the performance of the airplane ...
Carroll, Thomas, King, Paul B
core +1 more source
Visualization of Hemispherical Post‐Detonation Fireball Internal Structures
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Hemispherical charges are initiated above a transparent plate in a half‐plane configuration, allowing optical access to the internal regions of the luminous fireball. High‐speed visualization enables characterization of the internal luminous structure, showing clearly the bright shell and dark core regions.
Samuel N. Brunkow +5 more
wiley +1 more source
Development of advanced avionics systems applicable to terminal-configured vehicles [PDF]
A technique to add the time constraint to the automatic descent feature of the existing L-1011 aircraft Flight Management System (FMS) was developed.
Heimbold, R. L. +2 more
core +1 more source
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT A new azo‐bridged compound with triazole moieties featuring trifluoromethyl groups was synthesized, exhibiting encouraging properties in the field of energetic materials. The new compound was synthesized in two steps from common starting materials using cyclocondensation, followed by oxidation reaction.
Navid Rahman +4 more
wiley +1 more source
An in-flight investigation of ground effect on a forward-swept wing airplane [PDF]
A limited flight experiment was conducted to document the ground-effect characteristics of the X-29A research airplane. This vehicle has an aerodynamic platform which includes a forward-swept wing and close-coupled, variable incidence canard.
Curry, Robert E. +2 more
core +1 more source
Air–sea interaction in medicanes with atmosphere–ocean–wave coupled regional climate simulations
Quarterly Journal of the Royal Meteorological Society, EarlyView.The atmosphere–ocean–wave coupling improved storm intensity compared to standalone atmosphere setting, which tended to overestimate wind speeds. The atmosphere–ocean coupling in medicane simulations leads to increased sea surface temperatures, which enhances evaporation and promotes the development of convective systems through increased latent heat ...
Fulden Batibeniz +3 more
wiley +1 more source