Results 51 to 60 of about 23,648 (228)
Landing characteristics of an autogiro [PDF]
An investigation to determine the rate of descent, the horizontal velocity, and the attitude at contact of an autogiro in landings was made by the National Advisory Committee for Aeronautics at the request of the Bureau of Air Commerce, Department of ...
Peck, William C
core +1 more source
Operational experiences of a commercial helicopter flown in a large metropolitan area [PDF]
A survey of commercial helicopter-operating experiences was conducted using a helicopter flight recorder in order to provide a basis for extending helicopter design and service-life criteria.
Dicarlo, D. J.
core +1 more source
The Manual Flight Skill of Airline Pilots [PDF]
The manual flight ability of commercial airline pilots has been scrutinized after several aviation disasters in the first decade of the 21st century where pilot error has been a contributing cause.
Puentes, Antonio
core +1 more source
Sensitivity analysis of melting heat transfer in Williamson fluid
The purpose of this study is to disclose the prominent parameters in Williamson fluid flow subject to melting heat transfer, modified porous medium and thermal radiation. A mathematical model has been formulated under conservative laws.
Aliya Batool+2 more
doaj
Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles?
A new formation pathway for polycyclic aromatic nitrogen heterocycles (PANHs) has been found. The reaction of phenylnitrene and the propargyl radical leads to quinoline, proving that nitrenes are suitable precursors for nitrogen incorporation mechanisms.
Rahel Arns+6 more
wiley +1 more source
Heat, mass transfer, and non-Newtonian fluid flow processes have gained significant interest in various industrial applications due to their substantial significance in the fields of technology, engineering, and science. The aforementioned processes hold
Zhong Min+4 more
doaj
Design issues for lunar in situ aluminum/oxygen propellant rocket engines [PDF]
Design issues for lunar ascent and lunar descent rocket engines fueled by aluminum/oxygen propellant produced in situ at the lunar surface were evaluated.
Meyer, Michael L.
core +1 more source
Mucociliary clearance plays a crucial role within the respiratory system as an initial protective mechanism against infections. Hence, it is imperative to validate any assumptions made regarding the mucociliary clearance and its impact on its ...
Muhammad Bilal Arain+4 more
doaj
A novel decision support system for designing and assessing phytoremediation‐to‐biofuel value chains
Abstract The design of biofuel value chains is a complex process due to the large number of stakeholders involved, seasonality in feedstock availability, security of supply, logistics costs, efficiency considerations, and its multi‐node nature. Decisions on designing phytoremediation‐to‐biofuel value chains are even more complicated, due to the ...
Athanasios Rentizelas+7 more
wiley +1 more source
Unraveling metachronal wave effects on heat and mass transfer in Non-Newtonian fluid
Non-Newtonian fluids flow generated by “cilia” are critical in medicine and bio-medical engineering. Such investigations are created by the back-and-forth movement of a microscopic hair-like structure connected to the walls, which causes a metachronal ...
Yuchi Leng+6 more
doaj