Results 151 to 160 of about 179,421 (367)

The NASA high-speed turboprop program [PDF]

Technology readiness for Mach 0.7 to 0.8 turboprop powered aircraft with the potential for fuel savings and DOC reductions of up to 30 and 15 percent respectively relative to current in-service aircraft is addressed. The areas of propeller aeroacoustics,
Dugan, J. F., Graber, E. J., Miller, B. A., Sagerser, D. A.   +3 more
core   +1 more source

Notch sensitivity in aircraft structural and engine alloys [PDF]

, 1956
H. R. Voorhees, James W. Freeman
openalex  

Reallocation of active lithium by regulating electrochemical structural connectivity in anode‐free lithium metal batteries

InfoMat, EarlyView.
The columnar Li stacks induced by high‐density spatial multidimensional nucleation mode have stable bulk‐phase electronic pathway and interfacial kinetic structure, which significantly reduces the quasi‐linear accumulation of irreversible Li during the cycling process.
Jinqi Zhu, Wenxin Gou, Shidi Huang, Zhe Cui, Hao Wang, Linjian Zhang, Mengluan Gao, Wenqing Wang, Rujia Zou   +8 more
wiley   +1 more source

Effects of Hydrogen Multijet and Flow Rate Assignment on the Combustion Flow Characteristics in a Jet-Stabilized Combustor

ACS Omega, 2021
Haijun Sun, Pinghua Yan, Le Tian, Guanlong Ren, Yihua Xu, Zhiqiang Sheng   +5 more
doaj   +1 more source

Flight test techniques for the X-29A aircraft [PDF]

The X-29A advanced technology demonstrator is a single-seat, single-engine aircraft with a forward-swept wing. The aircraft incorporates many advanced technologies being considered for this country's next generation of aircraft.
Cooper, James M., Jr., Hicks, John W., Sefic, Walter J.   +2 more
core   +1 more source

Subisokinetic Sampling Errors for Aircraft Turbine Engine Smoke Probes [PDF]

, 1978
Joseph A. Martone
openalex   +1 more source

Evaluation of Aerosol‐Laden Plumes Generated by Jet Ventilation Using Background Oriented Schlieren

The Laryngoscope, EarlyView.
A manikin study was conducted to evaluate the risk to healthcare providers during jet ventilation, an aerosol‐generating procedure. Background oriented schlieren and an optical particle sizer were used to characterize the aerosol content in exhaled plumes.
Justin Jou, S. Syam, Azmi Marouf, Abbeigh N. Schroeder, N. Scott Howard, Bryan E. Schmidt   +5 more
wiley   +1 more source

Study of aerodynamic technology for single-cruise-engine VSTOL fighter/attack aircraft, phase 1 [PDF]

A conceptual design and analysis on a single engine VSTOL fighter/attack aircraft is completed. The aircraft combines a NASA/deHavilland ejector with vectored thrust and is capable of accomplishing the mission and point performance of type Specification ...
Foley, W. H., Sheridan, A. E., Smith, C. W.   +2 more
core   +1 more source

Aircraft Engine Emissions [PDF]

, 1979

openalex   +1 more source

The essential role of large research vessels in marine ecosystem observations and ocean sustainability

Limnology and Oceanography, EarlyView.
Abstract Our understanding of marine ecosystems and ability to manage them sustainably has come from multidisciplinary observations made repeatedly over long periods of time. These long‐term ecosystem observations depend on the capabilities of large research vessels, which play an essential role in the collection of global ocean observations.
Erin V. Satterthwaite, John C. Field, Andrea J. Fassbender, Gerardo Aceves‐Medina, Steven J. Bograd, Elliott L. Hazen, Nastassia V. Patin, Zachary Gold, Katherine A. Barbeau, Danie Kinkade, Adam Shepherd, Rasmus Swalethorp, Andrew R. Thompson, Henry A. Ruhl, Brice Semmens   +14 more
wiley   +1 more source