Results 181 to 190 of about 1,426,014 (374)

Friction Shock Absorbers and Reverse Thrust for Fast Multirotor Landing on High‐Speed Vehicles

open access: yesJournal of Field Robotics, Volume 43, Issue 2, Page 1068-1090, March 2026.
ABSTRACT Typical landing gears of small uninhabited aerial vehicles (UAV) limit their capability to land on vehicles moving at more than 20–50 km/h due to high drag forces, high pitch angles and potentially high relative horizontal velocities. To enable landing at higher speeds, a combination of lightweight friction shock absorbers and reverse thrust ...
Isaac Tunney   +2 more
wiley   +1 more source

RTJ-303: Variable geometry, oblique wing supersonic aircraft [PDF]

open access: yes
This document is a preliminary design of a High Speed Civil Transport (HSCT) named the RTJ-303. It is a 300 passenger, Mach 1.6 transport with a range of 5000 nautical miles.
Antaran, Albert   +5 more
core   +1 more source

Long‐Range Time‐Correlated Single‐Photon Counting Lidar 3D‐Reconstruction From a Moving Ground Vehicle

open access: yesJournal of Field Robotics, Volume 43, Issue 2, Page 1178-1192, March 2026.
ABSTRACT Time‐correlated single‐photon counting (TCSPC) lidar enables high‐resolution 3D imaging at kilometer range. While previous works have covered long range TCSPC 3D imaging from either stationary or airborne platforms, this is, to the best of our knowledge, the first attempt that use a moving ground vehicle. Fusing measurements taken at different
Hannes Ovrén   +2 more
wiley   +1 more source

Segmented Gurney Flaps for Improved Wind Turbine Wake Recovery

open access: yesWind Energy, Volume 29, Issue 3, March 2026.
ABSTRACT When wind passes through the rotor of a wind turbine, the velocity is decreased while turbulence is increased. The region of decreased wind speed behind the rotor is known as the wind turbine wake and is bounded by a complex structure of helical vortices. This structure occurs to be more stable in low ambient turbulence and low tip speed ratio
Nirav Dangi   +4 more
wiley   +1 more source

Civil tiltrotor missions and applications. Phase 2: The commercial passenger market [PDF]

open access: yes
The commercial passenger market for the civil tiltrotor was examined in phase 2. A market responsive commercial tiltrotor was found to be technically feasible, and a significant worldwide market potential was found to exist for such an aircraft ...
Alexander, H.   +6 more
core   +1 more source

Civil aircraft and aircraft engines : 2003 [PDF]

open access: yes, 2005
Current industrial report.

core  

Investigating Remote Warfare as the Radical Undoing of Life: The Compounding Civilian Harm Effects of US‐Led Coalition Bombings in Iraq

open access: yesAntipode, Volume 58, Issue 2, March 2026.
Abstract The increased reliance on remote warfare by US‐led military coalitions presents us with questions of “what war is” and “how to know about war” in the 21st century. In this article we substantiate calls for an embodied epistemology of war by introducing a transdisciplinary research agenda to investigate the temporal and spatial civilian harm ...
Lauren Gould   +3 more
wiley   +1 more source

Frontex and the University: Positivist Dissonance and the Institutionalisation of Border Violence through Research

open access: yesAntipode, Volume 58, Issue 2, March 2026.
Abstract The paper examines the existing relationships between universities and Frontex, investigating and problematising the intersection between the higher education sector and the violence of the European border regime. We introduce the concept of positivist dissonance to conceptualise these relationships within the wider “industrial‐military ...
Giulia Corgnier   +3 more
wiley   +1 more source

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