Results 51 to 60 of about 3,284 (194)

Simplified stability criteria for drone/carrier-aircraft close range flight

Hangkong gongcheng jinzhan
Both drone swarm intensive flight and drone aerial recovery involve the stability problem of drone/carrier-aircraft flight in close range interference flow field. This paper proposes an aerodynamic derivative model for drone/carrier-aircraft interference
HU Handong, WANG Wenkai, JIANG Xiong, SI Fangfang, LIU Fujun   +4 more
doaj   +1 more source

Economic problems of aircraft equipment recovery

, 2016
The formation of effects of different order in the process of aircraft equipment recovery is investigated. Changes of idle time of aviation equipment, depending on the cost of its recovery and maintenance are estimated. Economic problems of reasonable implementation of qualitative aircraft recovery are considered.
Poplavska, Z., Kalynovskyy, A.
openaire   +1 more source

Route generation for optimization in the Air Transport System : aircraft recovery problem and 4D trajectory planning [PDF]

, 2020
The punctuality and efficiency of the Air Transport System (ATS) has a significant impact on the economy. In 2016, the US Passenger Carrier Delay Costs were estimated to be USD 62.55 per minute and the total US flight arrival delays amounted to over 59 million minutes. Furthermore, air traffic volume is growing rapidly. The International Civil Aviation
openaire   +3 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

FILTERING SIGNALS ON THE BASE OF CUMULANTS

Авіаційно-космічна техніка та технологія, 2018
The subject of study is the integration of linear and nonlinear methods for the solution of image restoration applications. The aim is the development of signal filtering algorithm and image model building.
Александр Иванович Бей
doaj   +1 more source

Isolation, Insularity and Resilience: A Review of the Geophysical, Socioeconomic, and Environmental Vulnerabilities of Gran Canaria and Lesvos Islands for Policy Interventions to Global Change

Sustainable Development, EarlyView.
ABSTRACT The dynamic nature of small islands being geographically isolated and their perceived connectedness with global networks complicates research attempts to draw general conclusions on whether insularity leads to marginalization or strengthens their resilience for sustainable development.
Toheeb Lekan Jolaosho, Mazen Marouani, Takwa Boughanmi   +2 more
wiley   +1 more source

Landing scheduling for carrier aircraft fleet considering bolting probability and aerial refueling

Defence Technology
Recovery is a crucial supporting process for carrier aircraft, where a reasonable landing scheduling is expected to guide the fleet landing safely and quickly. Currently, there is little research on this topic, and most of it neglects potential influence
Genlai Zhang, Lei Wang, Zhilong Deng, Xuanbo Liu, Xichao Su, Haixu Li, Chen Lu, Kai Liu, Xinwei Wang   +8 more
doaj   +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

A high‐altitude thermal infrared method for estimating moose abundance and demography in Rocky Mountain National Park, USA

Wildlife Biology, EarlyView.
Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley   +1 more source

An MIP-heuristic approach for solving multiobjective helicopter flight scheduling in an oil and gas company

EURO Journal on Transportation and Logistics
Oil and gas extraction from offshore platforms usually requires regular helicopter transport to shuttle personnel to these remote sites. Effective organization and scheduling of flights to these maritime units ensure uninterrupted services, enhance ...
Angelo Aliano Filho, Tarley Mansur Fantazzini, Reinaldo Morabito   +2 more
doaj   +1 more source