Results 61 to 70 of about 1,252,707 (292)

Benefits of Proactive Planning of High-Performance Aircraft Training Operations in Flexible Airspace Structures for Pollution Reduction

open access: yesScience, Engineering and Technology
The flexibility of airspace use is at odds with its predictability. The extent of unplanned military activity, although a second-order factor relative to traffic variability, directly influences civil traffic and its pollution footprint. In this research,
Nikola Mostarac   +2 more
doaj   +1 more source

Finite Element Analysis Of Airfield Flexible Pavement

open access: yesArchives of Civil Engineering, 2014
The paper presents a numerical study of an aircraft wheel impacting on a flexible landing surface. The proposed 3D model simulates the behaviour of flexible runway pavement during the landing phase.
Leonardi G.
doaj   +1 more source

Ionically Counter‐Programmable Phase‐Separation of Superstable Star‐Biopolyamide Coacervates for Electrothermally‐Responsive Pseudosolid Smart Windows

open access: yesAdvanced Science, EarlyView.
We develop bio‐based, star‐branched polyamides from itaconic acid and cadaverine with tunable lower critical solution temperature (LCST) transitions for dynamic solar modulation. Specific metal ion coordination with pyrrolidone moieties drives precise phase transitions via calcium‐induced salting‐in and sodium‐induced salting‐out mechanisms. Formulated
Jie Liu   +6 more
wiley   +1 more source

Design of four axis aircraft based on Android control

open access: yesMATEC Web of Conferences, 2017
A four axle aircraft is designed with the open source firmware MWC is used as the flight control board. The MPU6050 gyro sensor and BMP085 pressure sensor are used to acquire the attitude data of aircraft in real time.
Tan Linglong, Wang Qing, Li Zexin
doaj   +1 more source

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai   +3 more
wiley   +1 more source

Status and development of flexible wing aircraft

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract The flexible wing aircraft is derived from the flexible wing and can be divided into inflatable and parafoil type according to its wing type. The flexible wing aircraft has a broad application in both aerospace, missiles and unmanned aerial vehicles.
Yuntu Ao   +4 more
openaire   +1 more source

A Multistage Venturi Amplifier for Rapid Inflation of Soft Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents the amplifier inflator for soft robotic systems (AIRS), a compact, lightweight, and effective device for rapidly deploying inflatable structures to high pressure. By integrating a check valve with a Venturi‐based air entrainer, AIRS delivers an initial high‐flow output followed by pressurization, supporting fast inflation and ...
Saba Firouznia   +4 more
wiley   +1 more source

Cessna Aircraft Company, Affidavit of Publication, Board of Directors Meeting Minutes, 1928

open access: yes, 1928
Affidavit of publication concerning the renaming of the Cessna-Roos Aircraft Company as the Cessna Aircraft Company; also present are meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective ...
Cessna Aircraft Company
core   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

open access: yesAdvanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony   +3 more
wiley   +1 more source

大迎角机动进气道装置刚柔耦合动力学分析

open access: yesJixie chuandong, 2012
Developing the inlet test installation for with high AOA maneuver the inlet’s characteristics of aircraft in the flight is studied.According to structural features and the motion mode,combining with the theory of flexible,and based on the modal synthesis
孔鹏, 王克逸, 巫朝君
doaj  

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