Results 111 to 120 of about 91,489 (305)

Study of aircraft in intraurban transportation systems, volume 1 [PDF]

An analysis of an effective short range, high density computer transportation system for intraurban systems is presented. The seven county Detroit, Michigan, metropolitan area, was chosen as the scenario for the analysis.
Kesling, P. H., Matteson, H. C., Sherwood, D. E., Stout, E. G., Tuck, W. R., Jr., Vaughn, L. A.   +5 more
core   +1 more source

Thrust allocation techniques for dynamically positioned vessels

, 2008
Dynamically positioned vessels must maintain their heading and position entirely by appropriate manipulation of the actuators that they are equipped with. Typically, these actuators are fixed and/or azimuthing thrusters and rudders, although unconventional actuators may also be present such as hawsers or winches.
openaire   +1 more source

Lost in aggregation? On the importance of local food price data for food poverty estimates

American Journal of Agricultural Economics, EarlyView.
Abstract This paper explores within‐country variations in food price dynamics and food poverty estimates by employing local market price data and national consumer price index (CPI) data. Our results show that national CPI data may be useful for approximating national trends but they fail to detect and identify spatial variations in local trends, which
Stephan Dietrich, Valerio Giuffrida, Bruno Martorano, Georg Schmerzeck, Marco Tiberti   +4 more
wiley   +1 more source

Control Allocation Strategy Based on Min–Max Optimization and Simple Neural Network

Drones
Servo-free tilt-rotor UAVs decouple position and attitude control without using servos, which cuts structural weight and removes the travel limits of traditional designs. In many applications—such as aerial platform operations and airborne photogrammetry—
Kaixin Li, Mei Liu, Xinliang Li, Xiaobin Yu, Kun Liu   +4 more
doaj   +1 more source

Definition of avionics concepts for a heavy lift cargo vehicle, appendix A [PDF]

The major objective of the study task was to define a cost effective, multiuser simulation, test, and demonstration facility to support the development of avionics systems for future space vehicles. This volume provides the results of the main simulation

core   +1 more source

Maneuvering-based Dynamic Thrust Allocation for Fully-Actuated Vessels

IFAC-PapersOnLine
This paper introduces a new approach to solving the thrust allocation problem using the maneuvering problem in the maritime domain for fully actuated vessels. The method uses a control Lyapunov function to create a nonlinear reference filter for the thruster forces. The filter ensures dynamic tracking of the optimal thrust allocation solution with rate
Gezer, Emir Cem, Skjetne, Roger
openaire   +2 more sources

Superannuation Reimagined: Moving Beyond the Origins to an Indigenous Focus

Australian Journal of Social Issues, EarlyView.
ABSTRACT Retirement income systems, such as superannuation, are meant to be non‐discriminatory and consider disadvantage faced by members of society. There are significant differences between the life expectancies of Indigenous and non‐Indigenous peoples. The gap in life expectancies is not considered when determining when Indigenous peoples can retire.
Levon Ellen Blue, Peter Anderson, Mark Brimble   +2 more
wiley   +1 more source

An evaluation of oxygen-hydrogen propulsion systems for the Space Station [PDF]

Conceptual designs for O2/H2 chemical and resistojet propulsion systems for the space station was developed and evaluated. The evolution of propulsion requirements was considered as the space station configuration and its utilization as a space ...
Garrison, P. W., Hannum, N. P., Klemetson, R. W.   +2 more
core   +1 more source

Transition From Primary to Secondary School: Igniting Attendance and Engagement Among Aboriginal and Torres Strait Islander Students Through National Policy Reform

Australian Journal of Social Issues, EarlyView.
ABSTRACT Australia's Closing the Gap reform aims to address disparities experienced by Aboriginal and Torres Strait Islander peoples. There are specific targets focussed on key educational transitions; yet, the transition to secondary education is not a targeted priority.
Azhar Hussain Potia, Kai W. Wheeler, Tracy Woodroffe, Karen Thorpe   +3 more
wiley   +1 more source

Full Envelope Control of Over-Actuated Fixed-Wing Vectored Thrust eVTOL

Aerospace
A novel full-envelope controller for an over-actuated fixed-wing vectored thrust eVTOL aircraft is presented. It proposes a generic control architecture, which is applicable to piloted, semi-automatic, and fully automated flight, consisting of an ...
Emmanuel Enenakpogbe, James F. Whidborne, Linghai Lu   +2 more
doaj   +1 more source