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260 Results Found

  • Article
  • Open Access
2 Citations
1,390 Views
39 Pages

29 September 2025

With the expected increase in drone operations, inter-operator fairness issues and congestion problems are expected to arise due to the strategic authorization approach mandated in European regulation. As an alternative, the proposed authorization me...

(This article belongs to the Special Issue Research and Applications of Low-Altitude Urban Traffic System)
  • Article
  • Open Access
3 Citations
3,211 Views
16 Pages

31 July 2025

The Ministry of Land, Infrastructure, and Transport conducted a demonstration project targeting pilot areas to commercialize drone delivery services in urban areas and to present a standard model. In this study, flight data on drone delivery routes i...

(This article belongs to the Section Transportation and Future Mobility)
  • Article
  • Open Access
1,380 Views
22 Pages

Dynamic Stability and Control Authority Blending in Lift-Plus-Cruise eVTOL Transition Flight

  • João Pedro Spadão,
  • Rui Marcos Grombone Vasconcellos,
  • Murilo Sartorato and
  • Wilian Miranda dos Santos

Lift-plus-cruise electric vertical takeoff and landing (eVTOL) aircraft exhibit complex stability characteristics during transition flight, when rotor-borne and wing-borne regimes coexist. This work investigates the dynamic stability of a lift-plus-c...

  • Article
  • Open Access
1 Citations
2,461 Views
17 Pages

30 August 2022

The extension of aft-body fuselage has become an important trend in the design of Hybrid Wing Body (HWB) civil aircraft due to its improved effect on flight control authority of aircraft. However, it is still unclear how efficient the extension of af...

(This article belongs to the Section Aerospace Science and Engineering)
  • Article
  • Open Access
6 Citations
2,902 Views
15 Pages

Estimating the Lifetime of Rotary Dryer Flights Based on Experimental Data

  • Marius Gabriel Petrescu,
  • Andrei Burlacu,
  • Gheorghe Dan Isbășoiu,
  • Teodor Dumitru and
  • Maria Tănase

13 May 2024

The studies carried out address an important problem for the concrete and asphalt industry, referring to the wear phenomena that affect the elements (flights) of rotary dryers used to dry mineral aggregates. In this article, the authors propose a lif...

(This article belongs to the Section Process Control, Modeling and Optimization)
  • Article
  • Open Access

10 November 2026

Consumer drones are widely used for recreational aerial photography, while cross-border operations face inconsistent regulations, fragmented official information, and changing restricted-airspace requirements. This paper proposes LUCA, a localized re...

  • Article
  • Open Access
3 Citations
7,472 Views
14 Pages

Development and Testing of a Low-Cost Instrumentation Platform for Fixed-Wing UAV Performance Analysis

  • Tulio Dapper e Silva,
  • Vinicius Cabreira and
  • Edison Pignaton De Freitas

21 May 2018

The flight data of a fixed-wing Unmanned Aerial Vehicle (UAV) can be evaluated by its designers in order to analyze its performance, to validate the project criteria and to make new decisions based on the data analyses. In this paper, the authors pro...

  • Article
  • Open Access
5 Citations
2,754 Views
25 Pages

31 August 2023

TOPIC: The task of the 21st century is the implementation of manned flights in Earth’s orbit with the view to building orbital and planetary bases. This requires addressing the impacts on people and small social groups in terms of psychological...

(This article belongs to the Special Issue Human Behaviors in Space Exploration Mission)
  • Article
  • Open Access
39 Citations
12,986 Views
17 Pages

9 April 2018

Due to safety concerns of integrating small unmanned aircraft systems (UAS) into non-segregated airspace, aviation authorities have required a set of detect and avoid (DAA) systems to be equipped on small UAS for beyond-visual-line-of-sight (BVLOS) f...

  • Article
  • Open Access
8 Citations
4,270 Views
24 Pages

A Risk Assessment Technique for Energy-Efficient Drones to Support Pilots and Ensure Safe Flying

  • Szabolcs Kocsis Szürke,
  • Norbert Perness,
  • Péter Földesi,
  • Dmytro Kurhan and ,
  • Mykola Sysyn and
  • Szabolcs Fischer
  • + 1 author+ 0 author

Unmanned Aerial Vehicles, also known as UAVs, play an increasingly important part in daily life. However, the ever-increasing number of UAVs pose an ever-increasing threat to the transportation infrastructure. Despite their precision and general effi...

(This article belongs to the Special Issue Land Transport, Vehicle and Railway Engineering)
  • Article
  • Open Access
7 Citations
6,258 Views
14 Pages

Temperature Measurement of a Bullet in Flight

  • Corentin Kerampran,
  • Tomasz Gajewski and
  • Piotr W. Sielicki

8 December 2020

This study answers a primary question concerning how the temperature changes during the flight of a bullet. To answer the question, the authors performed unique research to measure the initial temperatures of bullet surfaces and applied it to four ki...

(This article belongs to the Section Physical Sensors)
  • Proceeding Paper
  • Open Access
2 Citations
731 Views
9 Pages

The pursuit for cleaner aviation pushes research in hybrid-electric aircraft, which are far more complex systems than conventional airplanes. In this respect, the ODE4HERA European project aims to accelerate the development of such systems with the i...

(This article belongs to the Proceedings of The 15th EASN International Conference on “Innovation in Aviation & Space Towards Sustainability Today & Tomorrow”)
  • Editorial
  • Open Access
5,936 Views
2 Pages

16 December 2014

Recent advances in smart structures and multifunctional materials have facilitated many novel aerospace technologies such as morphing aircraft. A morphing aircraft, bio-inspired by natural fliers, has gained a lot of interest as a potential technolog...

(This article belongs to the Special Issue Adaptive/Smart Structures and Multifunctional Materials with Application to Morphing Aircraft)
  • Article
  • Open Access
7 Citations
4,990 Views
25 Pages

A Method for Improved Flight Testing of Remotely Piloted Aircraft Using Multisine Inputs

  • Roger Larsson,
  • Alejandro Sobron,
  • David Lundström and
  • Martin Enqvist

10 September 2020

Unless a segregated airspace and the corresponding clearances can be afforded, flight testing of remotely piloted aircraft is often done near the ground and within visual line-of-sight. In addition to the increased exposure to turbulence, this setup...

  • Article
  • Open Access
601 Views
17 Pages

Experimental Study on Improving Wear Resistance by Hardfacing of Rotary Drying Segments Used in the Asphalt Industry

  • Andrei Burlacu,
  • Marius Gabriel Petrescu,
  • Eugen Laudacescu,
  • Mihaela-Mădălina Călțaru and ,
  • Andreea-Mioara Dumitru,
  • Marius Bădicioiu and
  • Cristina Sescu-Gal
  • + 2 authors+ 0 author

27 March 2026

The asphalt industry, essential for the global transport infrastructure, requires substantial investments to increase the durability of production facilities. The quality of asphalt depends, essentially, on the degree of drying of mineral aggregates....

(This article belongs to the Section Mechanics of Materials)
  • Article
  • Open Access
30 Citations
11,272 Views
35 Pages

Testing of untethered subscale models, often referred to as subscale flight testing, has traditionally had a relatively minor, yet relevant use in aeronautical research and development. As recent advances in electronics, rapid prototyping and unmanne...

  • Article
  • Open Access
1 Citations
5,250 Views
26 Pages

6 July 2021

The authors discuss the Orthodox icon which Pavel Filonov (1883–1941) painted in 1908 or 1909 for his sister, Ekaterina, placing it within the broader context of his oeuvre, his family and his understanding of ‘religiosity’. Making reference to Filon...

(This article belongs to the Special Issue East-Slavic Religions and Religiosity: Mythologies, Literature and Folklore: A Reassessment)
  • Article
  • Open Access
31 Citations
10,218 Views
27 Pages

Wingtip folding is a means by which an aircraft’s wingspan can be extended, allowing designers to take advantage of the associated reduction in induced drag. This type of device can provide other benefits if used in flight, such as flight contr...

(This article belongs to the Special Issue Aeronautical Systems for Flow Control)
  • Article
  • Open Access
9 Citations
7,961 Views
24 Pages

Risk Analysis of the Future Implementation of a Safety Management System for Multiple RPAS Based on First Demonstration Flights

  • Francesco Grimaccia,
  • Federica Bonfante,
  • Manuela Battipede,
  • Paolo Maggiore and
  • Edoardo Filippone

The modern aeronautical scenario has welcomed the massive diffusion of new key elements, including the Remote Piloted Aircraft Systems (RPAS), initially used for military purposes only. The current decade has seen RPAS ready to become a new airspace...

(This article belongs to the Special Issue Unmanned Aerial Systems/Vehicles (UAS/V) and Drones)
  • Article
  • Open Access
8 Citations
4,986 Views
11 Pages

19 February 2022

The new requirement of installing the flight stabilization system onboard the airplanes for performing the single-pilot flights in IFR rules was issued lately. It caused the necessity of developing such a system for small aircraft. The proposed syste...

(This article belongs to the Special Issue 11th EASN International Conference on Innovation in Aviation & Space to the Satisfaction of the European Citizens)
  • Article
  • Open Access
14 Citations
5,604 Views
27 Pages

Clean Sky 2 Technology Evaluator—Results of the First Air Transport System Level Assessments

  • Marc Christopher Gelhausen,
  • Wolfgang Grimme,
  • Alf Junior,
  • Christos Lois and
  • Peter Berster

The authors have adjusted the DLR forecast model to evaluate the environmental benefits in terms of CO2 and NOx emissions of Clean Sky 2 technology innovations. The paper briefly describes the model employed: it consists of a passenger/flight volume...

(This article belongs to the Special Issue 11th EASN International Conference on Innovation in Aviation & Space to the Satisfaction of the European Citizens)
  • Article
  • Open Access
2 Citations
3,189 Views
17 Pages

Enhanced Readout System for Timepix3-Based Detectors in Large-Scale Scientific Facilities

  • Petr Burian,
  • Benedikt Bergmann,
  • Pavel Broulím,
  • Martin Farkaš and ,
  • Tomáš Kulhánek,
  • Petr Mánek,
  • Ondřej Růžička,
  • Petr Smolyanskiy,
  • Ondřej Urban and
  • Jan Zich
  • + 5 authors+ 0 author

17 March 2025

This work presents a novel readout system for the Timepix3-based detector, designed specifically for large-scale facilities, such as particle accelerators. The authors begin by outlining the challenges associated with utilizing the Timepix3 detector...

(This article belongs to the Special Issue Radiation Sensors and Detectors: Materials, Principles and Applications (2nd Edition))
  • Article
  • Open Access
6 Citations
3,584 Views
26 Pages

8 November 2024

It is widely recognized that airspace capacity must increase over the coming years. It is also commonly accepted that meeting this challenge while balancing concerns around safety, efficiency, and workforce issues will drive greater reliance on autom...

(This article belongs to the Special Issue Future Airspace and Air Traffic Management Design)
  • Article
  • Open Access
1,075 Views
28 Pages

Safety Considerations for a Distributed Electric Propulsion Aircraft: Lessons Learnt from an Automated Flight-Test Accident Involving a Research Demonstrator

  • Giorgio Filippoli,
  • Beniamino Maria Perri,
  • Niko Terzaroli,
  • Stefano Cacciola and ,
  • Carlo E. D. Riboldi and
  • Lorenzo Trainelli
  • + 1 author+ 0 author

21 July 2026

Characterizing the highly complex aero-propulsive interaction in distributed electric propulsion (DEP) aircraft may require automated flight-testing procedures with dedicated maneuvers, which introduce specific safety challenges. This paper investiga...

(This article belongs to the Special Issue Aviation Safety—Accident Investigation, Analysis and Prevention, 2nd Edition)
  • Article
  • Open Access
3 Citations
1,091 Views
16 Pages

20 October 2025

The robust stabilization of the attitude of quadrotors with respect to disturbance torques is a fundamental and crucial control problem in many unmanned aerial vehicle (UAV) applications. For this problem, a control Lyapunov function (CLF)-based robu...

(This article belongs to the Special Issue Modeling and Nonlinear Control for Complex MIMO Mechatronic Systems)
  • Article
  • Open Access
33 Citations
8,616 Views
22 Pages

In this paper, the authors analyze an important but overlooked area, the aerodynamics of the variable camber morphing wing in transition, where 6% camber changes from 2% to 8% using the two airfoil configurations: NACA2410 and NACA8410. Many morphing...

(This article belongs to the Special Issue Aircraft Morphing Systems 2.0)
  • Article
  • Open Access
9 Citations
3,803 Views
17 Pages

11 November 2021

A morphing wing concept allowing for coupled twist-camber shape adaptation is proposed. The design is based on an optimized thickness distribution both spanwise and chordwise to be able to morph the wing sections into targeted airfoil shapes. Simulta...

(This article belongs to the Special Issue Smart Aircraft Morphing Technologies)
  • Article
  • Open Access
13 Citations
5,477 Views
32 Pages

30 June 2023

In an area where unmanned aerial system (UAS) traffic is high, a conflict detection system is one of the important components for the safety of UAS operations. A novel UAS traffic management (UTM) monitoring application was developed, including a con...

(This article belongs to the Section Innovative Urban Mobility)
  • Article
  • Open Access
15 Citations
7,230 Views
12 Pages

6 August 2021

One of the top long-term threats to airport resilience is extreme climate-induced conditions, which negatively affect the airport and flight operations. Recent examples, including hurricanes, storms, extreme temperatures (cold/hot), and heavy rains,...

(This article belongs to the Special Issue Climate Change, Sustainable Development and Disaster Risks)
  • Article
  • Open Access
1 Citations
7,013 Views
9 Pages

The Effect of Jet Lag on Postural Stability

  • Faisal M. Al Mubarak,
  • Eric G. Johnson,
  • Noha S. Daher,
  • Shilpa B. Gaikwad and ,
  • Tim K. Cordett and
  • Heidi L. Aranda
  • + 1 author+ 0 author

Crossing time zones can disrupt our body clock and lead to jet lag. Some studies reported that jet lag affects human physical and cognitive functions. To the best of the authors’ knowledge, none of these studies examined the effects of jet lag on pos...

  • Article
  • Open Access
97 Citations
21,758 Views
20 Pages

An Evaluation of the Delivery of Medicines Using Drones

  • Michelle Sing Yee Hii,
  • Patrick Courtney and
  • Paul G. Royall

27 June 2019

This study tests the impact of drone transportation on the quality of a medicine. Modelling the critical process parameters of drone flight, the effects of temperature and vibration on insulin were investigated using the pharmacopoeia methods. The me...

  • Article
  • Open Access
6 Citations
4,040 Views
24 Pages

DFly: A Publicly Auditable and Privacy-Preserving UAS Traffic Management System on Blockchain

  • Frederico Baptista,
  • Marina Dehez-Clementi and
  • Jonathan Detchart

21 August 2024

The integration of Unmanned Aircraft Systems (UASs) into the current airspace poses significant challenges in terms of safety, security, and operability. As an example, in 2019, the European Union defined a set of rules to support the digitalization...

(This article belongs to the Section Innovative Urban Mobility)
  • Article
  • Open Access
6 Citations
5,680 Views
18 Pages

21 February 2022

The most common filters used to determine the angular position of quadrotors are the Kalman filter and the complementary filter. The problem of angular position estimation consist is a result of the absence of direct data. The most common sensors on...

(This article belongs to the Topic Design, Simulation and New Applications of Unmanned Aerial Vehicles)
  • Article
  • Open Access
3 Citations
3,621 Views
19 Pages

Unmanned Aerial Vehicles for the Monitoring of Telecommunication Towers from the Engineering Approach

  • Raimondas Pomarnacki,
  • Domantas Bručas,
  • Tomas Jačionis and
  • Darius Plonis

16 April 2025

In this article, the authors conducted electromagnetic radiation research on telecommunication base stations using Unmanned Aerial Vehicles (UAVs). Until now, UAVs have only been capable of performing visual inspections, without investigating electri...

(This article belongs to the Section Drone Design and Development)
  • Proceeding Paper
  • Open Access
2,718 Views
6 Pages

14 December 2022

In the past year, the author has been using the OpenSky ressources for teaching purposes in the context of Software-Engineering courses for undergraduates at the Darmstadt University of Applied Sciences (Germany). Challenges in using the OpenSky-Onli...

(This article belongs to the Proceedings of The 10th OpenSky Symposium)
  • Article
  • Open Access
1 Citations
1,343 Views
32 Pages

This study presents the application of an in-house developed safety assessment method on the scaled flight demonstrator e-Genius-Mod, which is equipped with distributed electric propulsion. Thereby, simplified aerodynamic and propulsive models are de...

(This article belongs to the Special Issue 15th EASN International Conference on Innovation in Aviation & Space Towards Sustainability Today and Tomorrow)
  • Review
  • Open Access
17 Citations
8,157 Views
15 Pages

The time-of-flight elastic recoil detection analysis (TOF-ERDA) method is one of the ion beam analysis methods that is capable of analyzing light elements in a sample with excellent depth resolution. In this method, simultaneous measurements of recoi...

  • Article
  • Open Access
43 Citations
5,450 Views
15 Pages

A Computer Vision Line-Tracking Algorithm for Automatic UAV Photovoltaic Plants Monitoring Applications

  • Gabriele Roggi,
  • Alessandro Niccolai,
  • Francesco Grimaccia and
  • Marco Lovera

14 February 2020

In this paper, the authors propose an UAV-based automatic inspection method for photovoltaic plants analyzing and testing a vision-based guidance method developed to this purpose. The maintenance of PV plants represents a key aspect for the profitabi...

(This article belongs to the Section E: Electric Vehicles)
  • Article
  • Open Access
3 Citations
1,768 Views
15 Pages

6 February 2026

In many unmanned aerial vehicle (UAV) applications, achieving stable flight despite actuator failures is crucial. Among the many existing fault-tolerant control (FTC) methods, adaptive control is a practical approach. In this article, we present expe...

(This article belongs to the Special Issue Adaptive Fault-Tolerant Control Strategies for Uncertain Nonlinear Systems: Mitigating Actuator Faults)
  • Article
  • Open Access
26 Citations
6,816 Views
19 Pages

5 November 2021

This paper discloses a new algorithm, called sustainable supersonic fuel flow method, to complement the conceptual design of future supersonic aircraft with pollutant and greenhouse gases emissions estimation. Starting from already existing algorithm...

(This article belongs to the Special Issue Aircraft Emissions and Climate Impact)
  • Article
  • Open Access
2 Citations
5,923 Views
14 Pages

Environment for Planning Unmanned Aerial Vehicles Operations

  • Claudio Pascarelli,
  • Manuela Marra,
  • Giulio Avanzini and
  • Angelo Corallo

Planning and executing missions in terms of trajectory generation are challenging problems in the operational phase of unmanned aerial vehicles (UAVs) lifecycle. The growing adoption of UAVs in several civil applications requires the definition of pr...

  • Article
  • Open Access
2 Citations
3,079 Views
22 Pages

Optimizing Aircraft Routes in Dynamic Conditions Utilizing Multi-Criteria Parameters

  • Oleh Sydorenko,
  • Nataliia Lysa,
  • Liubomyr Sikora,
  • Roman Martsyshyn and
  • Yuliya Miyushkovych

27 May 2025

The growth of air transportation volume and increasing requirements for efficiency require the improvement of algorithms for planning optimal aircraft flight routes. Traditional methods, such as the A*, B*, D* and Dijkstra algorithms, are widely used...

(This article belongs to the Section Aerospace Science and Engineering)
  • Article
  • Open Access
6 Citations
4,195 Views
22 Pages

Bifurcation Flight Dynamic Analysis of a Strake-Wing Micro Aerial Vehicle

  • Mirosław Nowakowski,
  • Krzysztof Sibilski,
  • Anna Sibilska-Mroziewicz and
  • Andrzej Żyluk

8 February 2021

Non-linear phenomena are particularly important in -flight dynamics of micro-class unmanned aerial vehicles. Susceptibility to atmospheric turbulence and high manoeuvrability of such aircraft under critical flight conditions cover non-linear aerodyna...

(This article belongs to the Special Issue Unmanned Aerial Vehicles)
  • Article
  • Open Access
6 Citations
3,833 Views
17 Pages

21 August 2022

This paper covers a new actuation and deflection controller configuration for high-aspect-ratio wings used on subsonic drones, missiles, and munitions. Current approaches to the flight control of these aircraft have unearthed challenges with friction...

(This article belongs to the Special Issue Advanced Actuators for Aerospace Systems)
  • Article
  • Open Access
8 Citations
5,083 Views
12 Pages

Population and Conservation Status of Bighorn Sheep in the State of Baja California, Mexico

  • Guillermo Romero-Figueroa,
  • Enrique de Jesús Ruiz-Mondragón,
  • Eahsan Shahriary,
  • Carlos Yee-Romero and ,
  • Aldo Antonio Guevara-Carrizales,
  • Rafael Paredes-Montesinos,
  • Jesús Miguel Corrales-Sauceda,
  • Israel Guerrero-Cárdenas and
  • Raul Valdez
  • + 4 authors+ 0 author

3 February 2024

The bighorn sheep in Mexico is classified as at-risk by the Mexican federal government. In the state of Baja California, wild sheep can be observed throughout the length of the state from the USA–Mexico border south to the Agua de Soda mountain...

(This article belongs to the Special Issue Ungulate Ecology, Population Dynamics, and Conservation)
  • Article
  • Open Access
16 Citations
5,681 Views
19 Pages

Designing a Reliable UAV Architecture Operating in a Real Environment

  • Krzysztof Andrzej Gromada and
  • Wojciech Marcin Stecz

29 December 2021

The article presents a method of designing a selected unmanned aerial platform flight scenario based on the principles of designing a reliable (Unmanned Aerial Vehicle) UAV architecture operating in an environment in which other platforms operate. Th...

(This article belongs to the Special Issue Unmanned Aerial Vehicles)
  • Article
  • Open Access
7 Citations
3,341 Views
21 Pages

16 January 2024

Unmanned aerial vehicle technology is the most advanced and helpful in almost every area of interest in human work. These devices become autonomous and can fulfil a variety of tasks, from simple imaging and obtaining data to search and rescue operati...

(This article belongs to the Special Issue UAV Path Planning and Navigation)
  • Article
  • Open Access
28 Citations
7,877 Views
17 Pages

8 July 2021

The COVID-19 pandemic has caused very serious problems almost to the whole world, so every opportunity must be considered to improve the situation. One such improvement strategy is decontamination carried out from the air. This technique can be consi...

  • Article
  • Open Access
10 Citations
14,724 Views
24 Pages

Parrot Free-Flight as a Conservation Tool

  • Constance Woodman,
  • Chris Biro and
  • Donald J. Brightsmith

8 June 2021

The release of captive-raised parrots to create or supplement wild populations has been critiqued due to variable survival rates and unreliable flocking behavior. Private bird owners free-fly their parrots in outdoor environments and utilize techniqu...

(This article belongs to the Special Issue Ecology and Conservation of Parrots in Their Native and Non-Native Ranges)
  • Feature Paper
  • Article
  • Open Access
7 Citations
4,858 Views
10 Pages

22 August 2018

Research on endangered British butterflies has found that butterfly populations in small refuges evolve to allocate more mass to the thorax (flight muscle) and less to the abdomen than populations in large refuges. The observed change in mass allocat...

(This article belongs to the Special Issue Butterfly Ecology and Conservation)

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