Results 171 to 180 of about 1,220,175 (393)

Energy Sources and Thermal Management Technologies for Electric Vehicle Batteries: A Technical Review

open access: yesGlobal Challenges, EarlyView.
Overview of Battery Thermal Management System (BTMS) methods, including air, liquid, cold plate, and hybrid cooling strategies—highlighting direct/indirect liquid techniques and hybrid integrations like PCM, refrigerant, and heat pipe systems. Abstract Efficient thermal management of high‐power lithium‐ion batteries (LiBs) is critical for ensuring ...
Md Atiqur Rahman   +6 more
wiley   +1 more source

Overview of safety research [PDF]

open access: yes
Aircraft safety is reviewed by first establishing a perspective of air transportation accidents as a function of calendar year, geographic area, and phase of flight, and then by describing the threats to safety and NASA research underway in the three ...
Enders, J. H.
core   +1 more source

Velocity vector control system augmented with direct lift control [PDF]

open access: yes, 1981
A pilot-controlled stability control system that employs direct lift control (spoiler control) with elevator control to control the flight path angle of an aircraft is described.
Kelly, W. W., Tisdale, H. F., Sr.
core   +1 more source

Retrofitting Low Carbon Aviation Fuels Processes From Natural Gas to Renewables Energy‐Based Systems

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT The aviation sector's dependence on high‐energy‐density fuels presents a challenge for decarbonization. This study evaluates the economic and environmental feasibility of retrofitting a gas‐to‐liquid (GTL) plant for low carbon aviation fuel (LCAF) production using solar electrification, an advanced reformer unit (CARGEN), and a hybrid ...
Yasmin Abdelkarim   +6 more
wiley   +1 more source

Flight evaluation of an extended engine life mode on an F-15 airplane [PDF]

open access: yes
An integrated flight and propulsion control system designed to reduce the rate of engine deterioration was developed and evaluated in flight on the NASA Dryden F-15 research aircraft.
Conners, Timothy R., Myers, Lawrence P.
core   +1 more source

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

open access: yesThe 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   +5 more
wiley   +1 more source

Study of Turbofan Engines Designed for Low Enery Consumption [PDF]

open access: yes
Subsonic transport turbofan engine design and technology features which have promise of improving aircraft energy consumption are described. Task I addressed the selection and evaluation of features for the CF6 family of engines in current aircraft, and ...
Hirschkron, R.   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy