Results 81 to 90 of about 7,527 (250)

UTILIZATION CSRS-PPP SOFTWARE FOR RECOVERY AIRCRAFT’S POSITION

Scientific Journal of Silesian University of Technology. Series Transport, 2015
The PPP method is applied in aeronautical navigation as a new technique for determination of aircraft’s position. In this paper preliminary results of recovery aircraft’s position were presented. The raw GPS observations from Topcon dual-frequency receiver were utilized to position obtained with temporal resolution 1 second.
openaire   +2 more sources

Deep Reinforcement Learning‐Based Control for Real‐Time Hybrid Simulation of Civil Structures

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Real‐time Hybrid Simulation (RTHS) is a cyber‐physical technique that studies the dynamic behavior of a system by combining physical and numerical components that are coupled through a boundary condition enforcer. In structural engineering, the numerical components are subjected to environmental loads that become dynamic displacements of the ...
Andrés Felipe Niño, Alejandro Palacio‐Betancur, Piedad Miranda‐Chiquito, Juan David Amaya, Christian E. Silva, Mariantonieta Gutierrez Soto, Luis Felipe Giraldo   +6 more
wiley   +1 more source

ANTI-AIRCRAFT MISSILE COMPLEXES DIAGNOSIS AND REPAIR SYSTEM MODELING BY USING THE CLOSED QUEUING SYSTEMS

Sučasnì Informacìjnì Tehnologìï u Sferì Bezpeki ta Oboroni, 2015
The article explored the model system diagnosis and repair of anti-aircraft missile complexes as closed queuing system. As the technical basis of the system model is considered a modern development of State Enterprise “Ukroboronservis” – universal mobile
Oleksandr Y. Permiakov, Yurii B. Pribyliev, Pavlo V. Openko, Iryna V. Novikova   +3 more
doaj  

Numerical Investigation on Flow Separation Control for Aircraft Serpentine Intake with Coanda Injector

Fluids
Modern military aircraft integrate a large number of high-power-density electronic devices, which leads to a rapid increase in thermal load and poses significant challenges for heat dissipation.
Zhan Fu, Zhixu Jin, Wenqiang Zhang, Tao Yang, Jichao Li, Jun Shen   +5 more
doaj   +1 more source

Climate‐Driven Mangrove Dieback and Recovery: A Case Study in Albert and Leichhardt Rivers, Australia

Remote Sensing in Ecology and Conservation, EarlyView.
Cycles of dieback and recovery drove mangrove forest dynamics at the Albert and Leichhardt Rivers (Gulf of Carpentaria, Queensland, Australia) over 36 years (1987–2023). Landward margins were the most affected by reduced tidal inundation when the alignment of low lunar declination suppressed tidal range and extreme El Niño phases lowered mean sea level.
Rogerio Victor S. Gonçalves, Emma Asbridge, Jeffrey J. Kelleway, Richard Lucas, Kerrylee Rogers   +4 more
wiley   +1 more source

Designing for unanticipated uses: How product attributes shape community‐led exaptation

Strategic Management Journal, EarlyView.
Abstract Research Summary Users often discover new uses for products that firms may later commercialize, which we call community‐led exaptation. We examine how product attributes shape users' discovery of new functions versus new functionalities. Using 1925 IKEA product hacks, we find that modularity increases the likelihood of new functions.
Shi‐Ying Lim, Tian Heong Chan
wiley   +1 more source

A Preliminary Exploratory Measurement Model for Systems Thinking in Defence and Aerospace Engineering: A Bifurcated Framework Developed via Multiple Correspondence Analysis

Systems Research and Behavioral Science, EarlyView.
ABSTRACT Modern engineering faces a ‘complexity crisis’ characterized by interlinked, multidisciplinary ‘wicked problems’, particularly within the defence and aerospace sectors. Although systems thinking is recognized as a critical competency for navigating this environment, empirical quantitative frameworks for its measurement remain limited.
Shimon Fridkin, Sigal Kordova
wiley   +1 more source

Impacts of Change‐Type and State‐Type System Qualities on Complex System Architectures

Systems Engineering, EarlyView.
ABSTRACT System qualities, such as scalability, expandability, and reconfigurability, are key requirements of complex systems. Requirements associated with system qualities are important factors in design trade space analyses, but systems engineering design methodologies make only limited use of these qualities, hindering a holistic understanding of ...
Christina F. Bridges, Benjamin W. Stirgwolt   +1 more
wiley   +1 more source

Field evaluations of thermal optics and tracking tunnels for small mammal surveys at airports and grass dominated habitats

Wildlife Society Bulletin, EarlyView.
Small mammal survey tools are needed at airports to help inform aircraft strike‐risk management. We evaluated thermal optics and tracking tunnels as small mammal survey tools. We conclude that thermal optics would not be a viable survey tool for mouse‐sized mammals (19‐41 g) at airfields and other thick grass habitats unless grass height was maintained
Aaron B. Shiels, Hunter Ray, Travis L. Guerrant, Craig K. Bloomquist, Scott F. Beckerman   +4 more
wiley   +1 more source

Unconventional Mining of End-of-Life Aircrafts: A Systematic Review

Recycling
Advancements in material science have allowed us to exploit the potential of new era for aircraft production. High-performance composites and alloys have allowed us to improve the performance and durability of aircraft, but they have become more and more
Silvia Zecchi, Giovanni Cristoforo, Carlo Rosso, Alberto Tagliaferro, Mattia Bartoli   +4 more
doaj   +1 more source