Results 31 to 40 of about 9,716 (286)

Impact Analysis of Solar Cells on Vertical Take-Off and Landing (VTOL) Fixed-Wing UAV

open access: yesAerospace, 2023
A vertical take-off and landing (VTOL) is a type of unmanned aerial vehicle (UAV) that allows for flight in harsh weather for surveillance and access to remote areas. VTOL can be performed without a runway.
Magdalena Peciak   +3 more
doaj   +1 more source

Scenario-Based Strategic Planning for Future Civil Vertical Take-off and Landing (VTOL) Transport

open access: yesJournal of Aviation/Aerospace Education & Research, 2020
Rapid evolvement of the vertical take-off and landing (VTOL) technology in conjunction with recent robust R&D has demonstrated the technical feasibility of the civil VTOL system as a short-haul mass transit mode. Its combined benefits of a helicopter and
WooJin Choi, Steven Hampton
doaj   +1 more source

ON MODERN APPROACH TO AIRPLANE-TYPE UNMANNED AERIAL VEHICLES DESIGN WITH SHORT TAKEOFF AND LANDING [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2017
This publication opens a series of review papers devoted to the current design problems of the next generation unmanned airplanes that are expected to appear in the period from 2025 to 2035. The series of papers considers airplanes with vertical take-off
Oleg P. Minin
doaj   +1 more source

Optimization-Based Control for a Large-Scale Electrical Vertical Take-Off and Landing during an Aircraft’s Vertical Take-Off and Landing Phase with Variable-Pitch Propellers

open access: yesDrones
The UAV industry has witnessed an unprecedented boom in recent years. Among various kinds of UAV platforms, the vertical take-off and landing (VTOL) aircraft with fixed-wing configurations has received more and more attention due to its flexibility and ...
Luyuhang Duan   +5 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Design Analysis of Wing Tip Vertical Tail of the Vertical Takeoff and Landing Fixed-wing UAV

open access: yesHangkong gongcheng jinzhan, 2019
Vertical takeoff and landing(VTOL) fixed-wing UAV has the advantages of fast speed, long range, vertical takeoff and landing and hovering operation of fixed-wing UAV. It is of great significance to study the influence of the vertical tail of its wing tip
Zhang Fei, Wang Yun, Sun Yifang, Tan Kun
doaj   +1 more source

Remotely Piloted Vehicle/Vertical Attitude Take-Off And Landing Demonstration Vehicle

open access: yes, 1975
Launch and recovery of RPV's aboard ship has been identified by the Navy as a major design impact area. Vertical attitude take-off and landing offers attractive advantages to the Navy in that ship/RPV interface problems are alleviated.
Warren H. Eilertson
core   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann   +8 more
wiley   +1 more source

Design Challenges for an Autonomous Unmanned Aerial Vehicle With Hybrid Lift and Propulsion

open access: yesIEEE Access
Minimization of energy consumption with the longest flight time and distance is one of the main challenges in the development of unmanned aerial vehicles (UAV).
Alysson Nascimento de Lucena   +4 more
doaj   +1 more source

Trajectory tracking control of tilt-propulsion UAV vertical take-off and landing mode based on NLESO

open access: yesXibei Gongye Daxue Xuebao, 2023
Aiming at the vertical take-off and landing mode of tilt-propulsion UAV with uncertainties such as external environment disturbance and internal parameter perturbation, this paper studies the trajectory tracking control, and proposes an internal and ...
XIA Jiyu   +3 more
doaj   +1 more source

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