Results 11 to 20 of about 12,175,310 (293)

INDI Control with Direct Lift for a Tilt Rotor UAV

open access: yesIFAC-PapersOnLine, 2015
Abstract The benefits of adding direct lift control capabilities to a high aspect ratio, low wing load, tilt rotor UAV within an Incremental Nonlinear Dynamic Inversion framework are presented in this paper. The primary motivation is the need for some gust alleviation scheme to mitigate the large sensitivity to turbulence of light weight, low wing ...
Di Francesco G., D'Amato E., Mattei M.
openaire   +5 more sources

A Newly Designed Automatically Controlled, Sterilizable Flat Panel Photobioreactor for Axenic Algae Culture

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
In context of the global climate change, microalgae processes are gaining momentum as a biotechnological tool for direct fixation and valorization of greenhouse gases.
Tobias Fuchs   +12 more
doaj   +1 more source

Idle Operation with Low Intake Valve Lift in a Port Fuel Injected Engine [PDF]

open access: yes, 2013
Reducing fuel consumption is a prime objective in the automotive industry in order to meet regulatory and customer demands. Variable valve actuation offers many opportunities for improving the spark ignition engine’s performance in areas such as fuel ...
CLENCI, Adrian   +12 more
core   +1 more source

Wake Control of Flow Past Twin Cylinders via Small Cylinders

open access: yesMathematics, 2023
The drag and lift force of a twin-cylinder structure are often greater than those of a single cylinder, causing serious structural safety problems. However, there are few studies on the passive control of twin cylinders.
Jinghua Yang   +3 more
doaj   +1 more source

Inertial drag and lift forces for coarse grains on rough alluvial beds measured using in-grain accelerometers [PDF]

open access: yesEarth Surface Dynamics, 2020
Quantifying the force regime that controls the movement of a single grain during fluvial transport has historically proven to be difficult. Inertial micro-electromechanical system (MEMS) sensors (sensor assemblies that mainly comprise micro ...
G. Maniatis   +4 more
doaj   +1 more source

LIFT newsletter 3 (Hungarian)

open access: yes, 2021
This is the third newsletter of the LIFT research project in Hungarian ...
LIFT consortium
core   +1 more source

LIFT newsletter 2 (Hungarian)

open access: yes, 2020
This is the second newsletter of the LIFT research project in Hungarian ...
LIFT consortium
core   +1 more source

LIFT newsletter 3 (French)

open access: yes, 2021
This is the third newsletter of the LIFT research project in French ...
LIFT consortium
core   +1 more source

A novel hovering type of fixed wing aircraft with stealth capability [PDF]

open access: yesINCAS Bulletin, 2010
The tactical need for fixed wing aircraft with hovering capably has long been recognized bythe military for two reasons: increased safety when landing on aircraft carriers and higher velocitiesthat the ones obtainable with rotary wing aircraft.Thus far ...
Valeriu DRĂGAN
doaj   +1 more source

Control Optimization of Small-Scale Thrust-Vectoring Vertical/Short Take-Off and Landing Vehicles in Transition Phase

open access: yesDrones, 2022
The core of the short takeoff and landing problem in thrust-vectoring V/STOL vehicles is the tilt angle control of the thrust vector nozzles. This work resolves it by figuring out the optimal tilt angle time history with optimization methods.
Zheng Gong   +5 more
doaj   +1 more source

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