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Journal articles on the topic 'Programmed flight model'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Anton, Chubarov. "Constructing the models of programmed flight for path calculation in designing tactical and anti-aircraft guided missiles." Eastern-European Journal of Enterprise Technologies 1, no. 4(109) (2021): 21–30. https://doi.org/10.15587/1729-4061.2021.225594.

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Several models of programmed flight have been constructed to perform calculations on flight path optimization in designing tactical and anti-aircraft-guided missiles. The developed models are based on the determination of interrelated programmed values of altitude and the flight path angle depending on the range which have a differential relationship. The combination of flight altitude and flight-path angle programs allows the users to simulate the steady flight of a guided missile to the calculated endpoint using the methods of proportional control. Good correspondence of the developed models

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2

He, Hong Li. "The Development of Flight Test Real-Time Trajectory Measurement System." Applied Mechanics and Materials 798 (October 2015): 329–35. http://dx.doi.org/10.4028/www.scientific.net/amm.798.329.

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According to the feature of test requirement existed inthe flight test and measuring equipments in plane track, the flight test trajectory measurement system is builtand anomaly recognition of flight test trajectory measurement is studied intensively. For the requirement of implementation guide and monitor treatment, the data processing software of flight test real-time trajectory measurement system is designed and programmed. Algorithm model construction and implementation process are also presented in this paper. In addition,real-time measurement and guidance andmonitoring processingare real

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3

Gorski, S., and M. Marra. "Programmed cell death takes flight: genetic and genomic approaches to gene discovery in Drosophila." Physiological Genomics 9, no. 2 (2002): 59–69. http://dx.doi.org/10.1152/physiolgenomics.00114.2001.

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Programmed cell death (PCD) is an essential and wide-spread physiological process that results in the elimination of cells. Genes required to carry out this process have been identified, and many of these remain the subjects of intense investigation. Here, we describe PCD, its functions, and some of the consequences when it goes awry. We review PCD in the model system, the fruit fly, Drosophila melanogaster, with a particular emphasis on cell death gene discovery resulting from both genetics and genomics-based approaches.

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4

Rachmawati, Putri, and Muhammad Haydar Asyam. "Sistem Kontrol Pesawat Tanpa Awak Untuk Menentukan Waypoint Berbasis Ardupilot." Quantum Teknika : Jurnal Teknik Mesin Terapan 2, no. 2 (2021): 80–86. http://dx.doi.org/10.18196/jqt.v2i2.11490.

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An unmanned Aerial Vehicle (UAV) is a type of unmanned aerial vehicle which is controlled by a remote system. This type of aircraft is usually controlled by remote control from outside the plane and can also move automatically based on a program that has been programmed on the computer system. In this study, a control system with autopilot and remote control is used. This study aims to apply the ardupilot system to the super heavy model aircraft with a long-range flight mode control system using the Futaba T8J (8 channel) radio control. The results of this study took a flight time of 15.02 min

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Melekhin, V. B., and M. V. Khachumov. "Fuzzy Model of Situational Control of the Flight Parameters of an Autonomous Unmanned Aircraft under Uncertainty Conditions." Mekhatronika, Avtomatizatsiya, Upravlenie 22, no. 12 (2021): 650–59. http://dx.doi.org/10.17587/mau.22.650-659.

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The article outlines the main problems of automatic planning of the behavior of an autonomous unmanned aerial vehicle in unstable air conditions. It is shown that the urgency of the problem is due to the fact that an autonomous unmanned aerial vehicle independently forms and implements its flight route without support from a ground control station. There is therefore a need to develop a method for automatic control of programmed movements associated with the implementation of the route constructed by the problem solver. To solve this problem we propose an approach to regulating the parameters

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6

KUITCHE, Maxime Alex Junior, Ruxandra Mihaela BOTEZ, Arthur GUILLEMIN, and David COMMUNIER. "Aerodynamic Modelling of Unmanned Aerial System through Nonlinear Vortex Lattice Method, Computational Fluid Dynamics and Experimental Validation - Application to the UAS-S45 Bàlaam: Part 1." INCAS BULLETIN 12, no. 1 (2020): 91–103. http://dx.doi.org/10.13111/2066-8201.2020.12.1.9.

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This paper describes a methodology to predict the aerodynamic behaviour of an Unmanned Aerial System. Aircraft design and flight dynamics modelling are mainly concerned with aerodynamics, and thus its estimation requires a high level of accuracy. The work presented here shows a new non-linear formulation of the classical Vortex Lattice Method and a comparison between this methodology and an experimental analysis. The new non-linear Vortex Lattice Method was performed by calculating the viscous forces from the strip theory, and the forces generated by the vortex rings from the vortex lifting la

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7

Edgerton, V. R., G. E. McCall, J. A. Hodgson, et al. "Sensorimotor adaptations to microgravity in humans." Journal of Experimental Biology 204, no. 18 (2001): 3217–24. http://dx.doi.org/10.1242/jeb.204.18.3217.

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SUMMARY Motor function is altered by microgravity, but little detail is available as to what these changes are and how changes in the individual components of the sensorimotor system affect the control of movement. Further, there is little information on whether the changes in motor performance reflect immediate or chronic adaptations to changing gravitational environments. To determine the effects of microgravity on the neural control properties of selected motor pools, four male astronauts from the NASA STS-78 mission performed motor tasks requiring the maintenance of either ankle dorsiflexo

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8

Chernyak, Mykola, and Evgen Burym. "Experimental strapdown inertial navigation system for the autonomous guidance system of a short-range uav." MECHANICS OF GYROSCOPIC SYSTEMS, no. 43 (May 15, 2022): 34–45. http://dx.doi.org/10.20535/0203-3771432022275280.

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The task of experimental verification of the possibility of using a miniature strapdown inertial navigation system (SINS) on micromechanical sensors for autonomous guidance of a short-range manned aircraft moving along a programmed hypothetical trajectory is considered. A mathematical model of the first approximation of the instrumental errors of the two-coordinate autonomous SINS of the aircraft with a short flight time was obtained. The mathematical model allows both to calculate the values of these errors for specific types of inertial sensors used in SINS (direct analysis problem), a

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9

Gao, Mengjing, Tian Yan, Quancheng Li, Wenxing Fu, and Jin Zhang. "Intelligent Pursuit–Evasion Game Based on Deep Reinforcement Learning for Hypersonic Vehicles." Aerospace 10, no. 1 (2023): 86. http://dx.doi.org/10.3390/aerospace10010086.

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As defense technology develops, it is essential to study the pursuit–evasion (PE) game problem in hypersonic vehicles, especially in the situation where a head-on scenario is created. Under a head-on situation, the hypersonic vehicle’s speed advantage is offset. This paper, therefore, establishes the scenario and model for the two sides of attack and defense, using the twin delayed deep deterministic (TD3) gradient strategy, which has a faster convergence speed and reduces over-estimation. In view of the flight state–action value function, the decision framework for escape control based on the

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10

Yatsyna, Y. F., and Y. V. Gridnev. "Computer simulation of control contour of unmanned aviation complex to provide robustness and controllability." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 63, no. 3 (2018): 368–80. http://dx.doi.org/10.29235/1561-8358-2018-63-3-368-380.

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The article describes an approach to ensuring stability and controllability of unmanned aerial vehicle (UAV) with unknown aerodynamic characteristics by computer simulation of the airplane flight along a given route in the meteorological standard atmosphere. This computer model takes into account the programmed flight of an unmanned aerial vehicle in the meteorological atmosphere along a given route with waypoints. For this purpose the model incorporates 5 feedback systems (FS) with autopilot (AP) that ensure the stability and controllability of an airplane. Besides the autopilot and the airpl

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11

Mesquita, Geison P., José Domingo Rodríguez-Teijeiro, Rodrigo Rocha de Oliveira, and Margarita Mulero-Pázmány. "Steps to build a DIY low-cost fixed-wing drone for biodiversity conservation." PLOS ONE 16, no. 8 (2021): e0255559. http://dx.doi.org/10.1371/journal.pone.0255559.

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Despite the proved usefulness of drones in biodiversity studies, acquisition costs and difficulties in operating, maintaining and repairing these systems constrain their integration in conservation projects, particularly for low-income countries. Here we present the steps necessary to build a low-cost fixed-wing drone for environmental applications in large areas, along with instructions to increase the reliability of the system and testing its performance. Inspired by DIY (Do It Yourself) and open source models, this work prioritizes simplicity and accounts for cost-benefit for the researcher

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Proskurov, Stan, Markus Lummer, Jan Werner Delfs, et al. "Installed Fan Noise Simulation of a Supersonic Business Aircraft." Aerospace 10, no. 9 (2023): 773. http://dx.doi.org/10.3390/aerospace10090773.

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Overcoming the problem of excessive engine noise at low altitudes is a formidable task on the way to developing a supersonic passenger aircraft. The focus of this paper is on the fan noise shielding during take-off, investigated as part of the DLR project ELTON SST (estimation of landing and take-off noise of supersonic transport) for an in-house aircraft design. The supersonic inlet is required to provide the proper quantity and uniformity of air to the engine over a wider range of flight conditions than the subsonic inlet. For passenger aircraft, the noise problem influences engine integrati

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13

Wilson, David F. "Programming and regulation of metabolic homeostasis." American Journal of Physiology-Endocrinology and Metabolism 308, no. 6 (2015): E506—E517. http://dx.doi.org/10.1152/ajpendo.00544.2014.

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Evidence is presented that the rate and equilibrium constants in mitochondrial oxidative phosphorylation set and maintain metabolic homeostasis in eukaryotic cells. These internal constants determine the energy state ([ATP]/[ADP][Pi]), and the energy state maintains homeostasis through a bidirectional sensory/signaling control network that reaches every aspect of cellular metabolism. The energy state is maintained with high precision (to ∼1 part in 1010), and the control system can respond to transient changes in energy demand (ATP utilization) of more than 100 times the resting rate. Epigenet

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14

Szwed, Piotr, Paweł Rzucidło, and Tomasz Rogalski. "Estimation of Atmospheric Gusts Using Integrated On-Board Systems of a Jet Transport Airplane—Flight Simulations." Applied Sciences 12, no. 13 (2022): 6349. http://dx.doi.org/10.3390/app12136349.

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Currently, quite accurate measurements of atmospheric gusts are carried out by airport systems only in the vicinity of the runways. There is a still open issue of availability of information about real wind gusts at cruising altitudes and during approach at a considerable distance from the airfield. Standard on-board systems of a jet transport airplane provide some information which is desirable to have knowledge of how flight parameters reflect real gust parameters and their impact on the aircraft dynamics. The paper proposes an algorithm for headwind gust magnitude estimation in relation to

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15

FURMANEK, Wojciech, Józef GACEK, and Grzegorz P. JĄCZEK. "Evaluation of a Novel Method of Fuse Programming Based on the Number of Projectile Revolutions." Problems of Mechatronics Armament Aviation Safety Engineering 13, no. 1 (2022): 93–108. http://dx.doi.org/10.5604/01.3001.0015.8107.

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This paper presents an innovative method of programming fuses for airburst munitions based on the principle of counting the number of revolutions a projectile makes around its centre line along the flight trajectory in order to determine the distance travelled by the projectile. The proposed innovative method of fuse programming was compared to other known methods of fuse programming based on the results of a computer simulation of firing a 40 mm grenade launcher under near-real conditions. For this purpose, a methodology was developed for external ballistic calculations using a mathematical m

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16

Dr.T.Sathish kumar, B.Nagababu, K.Sitaram Chowdary, and K.Ajay. "E-PIOLTS SYSTEM TO PREDICT HARD LANDING." international journal of engineering technology and management sciences 8, no. 3 (2024): 195–204. http://dx.doi.org/10.46647/ijetms.2024.v08i03.024.

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More than half of all commercial aircraft operation accidents could have been prevented by executing a go around. Making timely decision to execute a go-around manoeuvre can potentially reduce overall aviation industry accident rate. In this paper, we describe a cockpit-deployable machine learning system to support flight crew go-around decision-making based on the prediction of a hard landing event. This work presents a hybrid approach for hard landing prediction that uses features modelling temporal dependencies of aircraft variables as inputs to a neural network. Based on a large dataset of

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17

Ciesielka, Wojciech, and Grzegorz Suchanek. "Modelling and simulation tests of a quadrocopter flying robot." New Trends in Production Engineering 2, no. 1 (2019): 486–95. http://dx.doi.org/10.2478/ntpe-2019-0052.

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Abstract In recent years, there has been a dynamic increase in the use of multirotor flying robots in various areas of economic and social life. Robots of this kind may be used in environmental research, after equipping them with an appropriate measuring systems. This includes taking measurements of various types of contaminants, such as: particulate matter (PM), various gases, noise and light pollution. To make this possible, it is necessary to conduct advanced model-simulation tests of the flying platform, analyse and determine the appropriate location for the measurement system. Most of the

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18

Flávio de Melo, Leonimer, Felipe Andrade Allemand Borges, and João Maurício Rosário. "Wheelchairs Embedded Control System Design for Secure Navigation with RF Signal Triangulation." Journal of Information Technology Research 6, no. 2 (2013): 60–92. http://dx.doi.org/10.4018/jitr.2013040104.

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In the mobile robotic systems a precise estimate of the robot pose (Cartesian [x y] position plus orientation angle ?) with the intention of the path planning optimization is essential for the correct performance, on the part of the robots, for tasks that are destined to it, especially when intention is for mobile robot autonomous navigation. This work uses a ToF (Time-of-Flight) of the RF digital signal interacting with beacons for computational triangulation in the way to provide a pose estimative at bi-dimensional indoor environment, where GPS system is out of range. It's a new technology u

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19

Ortega, Luis D., Erick S. Loyaga, Patricio J. Cruz, Henry P. Lema, Jackeline Abad, and Esteban A. Valencia. "Low-Cost Computer-Vision-Based Embedded Systems for UAVs." Robotics 12, no. 6 (2023): 145. http://dx.doi.org/10.3390/robotics12060145.

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Unmanned Aerial Vehicles (UAVs) are versatile, adapting hardware and software for research. They are vital for remote monitoring, especially in challenging settings such as volcano observation with limited access. In response, economical computer vision systems provide a remedy by processing data, boosting UAV autonomy, and assisting in maneuvering. Through the application of these technologies, researchers can effectively monitor remote areas, thus improving surveillance capabilities. Moreover, flight controllers employ onboard tools to gather data, further enhancing UAV navigation during sur

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20

Wang, Jia, Chaojiang Zhang, Joshua H. Marks, and Ralf I. Kaiser. "Formation of All Three C₂H₄O Isomers—Ethylene Oxide (c-C₂H₄O), Acetaldehyde (CH₃CHO), and Vinyl Alcohol (CH₂CHOH)—in Ethanol-containing Interstellar Analog Ices." Astrophysical Journal 984, no. 2 (2025): 138. https://doi.org/10.3847/1538-4357/adc308.

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Abstract Oxygen-containing complex organic molecules are key precursors to biorelevant compounds fundamental for the origins of life. However, the untangling of their interstellar formation mechanisms has just scratched the surface, especially for oxygen-containing cyclic molecules. Here, we present the first laboratory simulation experiments featuring the formation of all three C2H4O isomers—ethylene oxide (c–C2H4O), acetaldehyde (CH3CHO), and vinyl alcohol (CH2CHOH)—in low-temperature model interstellar ices composed of carbon monoxide (CO) and ethanol (C2H5OH). Ice mixtures were exposed to

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21

Godfrey, Ian, José Pablo Sibaja Brenes, Geoffroy Avard, Maria Martinez Cruz, and Khadija Meghraouı. "Deploying UAS Directly Inside the Active Crater of Turrialba for Photogrammetry Data Collection Designed for Active Volcano Monitoring." Mersin Photogrammetry Journal 7, no. 1 (2025): 37–42. https://doi.org/10.53093/mephoj.1499133.

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Modern UAS or drones are quickly advancing when it comes to the collection of high-resolution images which are georeferenced and can be used to create a high resolution 3-D model of complex topography. Researchers in the field are making quick progress with new algorithms and analytical applications. These drones are being used in the field of volcanology in quite a useful manner as active volcano craters are one of the more challenging and complex areas to access. UAS have now assisted several departments of Universidad Nacional with data collection, analytics and optimization practices. In M

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22

Petrishchev, V. F. "Energy-Saving Algorithm of Automatic Control of Compulsory Passenger Carrier Landing. Part 1." Mekhatronika, Avtomatizatsiya, Upravlenie 19, no. 11 (2018): 725–33. http://dx.doi.org/10.17587/mau.19.725-733.

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The task was to develop an automatic landing system (ALS) for a passenger carrier that can be externally activated and excludes the possibility of the crew’s interference into the landing process, for example, when a carrier alters its nominal course or there is no contact with the crew. The air crush history saw a lot of cases that could have been prevented if the planes had had an ALS system and airports had had possibilities to activate that system and suspend the crew from flight control. One of such unforgettable examples is the New-York tragedy of September 11, 2001. State-of-the-art tec

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23

Petrishchev, V. F. "Energy-Saving Algorithm of Automatic Control of Compulsory Passenger Carrier Landing. Part II." Mekhatronika, Avtomatizatsiya, Upravlenie 19, no. 12 (2018): 788–96. http://dx.doi.org/10.17587/mau.19.788-796.

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The task was to develop an automatic landing system (ALS) for a passenger carrier that can be externally activated and excludes the possibility of the crew’s interference into the landing process, for example, when a carrier alters its nominal course or there is no contact with the crew. The air crush history saw a lot of cases that could have been prevented if the planes had had an ALS system and airports had had possibilities to activate that system and suspend the crew from flight control. One of such unforgettable examples is the New-York tragedy of September 11, 2001. State-of-the-art tec

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24

Ingram, M., A. Gachagan, A. Nordon, A. J. Mulholland, and M. Hegarty. "Calibration of ultrasonic hardware for enhanced total focusing method imaging." Insight - Non-Destructive Testing and Condition Monitoring 62, no. 7 (2020): 408–15. http://dx.doi.org/10.1784/insi.2020.62.7.408.

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Experimental variation from ultrasonic hardware is one source of uncertainty in measured ultrasonic data. This uncertainty leads to a reduction in the accuracy of images generated from these data. In this paper, a quick, easy-to-use and robust methodology is proposed to reduce this uncertainty in images generated using the total focusing method (TFM). Using a 128-element linear phased array, multiple full matrix capture (FMC) datasets of a planar reflection are used to characterise the experimental variation associated with each element index in the aperture. Following this, a methodology to d

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25

Zieja, Mirosław, and Joanna Wójcik. "Artificial Neural Networks as Applied to Aircraft Flight Test Planning / Wykorzystanie Sztucznych Sieci Neuronowych W Planowaniu Badań W Locie." Journal of KONBiN 21, no. 1 (2012): 149–62. http://dx.doi.org/10.2478/jok-2013-0014.

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Abstract Any flight test programme is essentially based on a flight test plan, i.e. a document agreed upon and accepted by all the parties interested in the tests, and authorised by the superior body/authorities responsible for the execution of the tests. The flight test plan determines the number of flights and flight hours indispensable to verify whether a given aircraft satisfies specified requirements. Many and various external factors may have significant and adverse effect on the execution of the flight test program according to the earlier agreed schedule. The study also covers the stru

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26

Kimber, Helen J., Courtney P. Ennis, and Stephen D. Price. "Single and double addition of oxygen atoms to propyne on surfaces at low temperatures." Faraday Discuss. 168 (2014): 167–84. http://dx.doi.org/10.1039/c3fd00130j.

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Experiments designed to simulate the low temperature surface chemistry occurring in interstellar clouds provide clear evidence of a reaction between oxygen atoms and propyne ice. The reactants are dosed onto a surface held at a fixed temperature between 14 and 100 K. After the dosing period, temperature programmed desorption (TPD), coupled with time-of-flight mass spectrometry, are used to identify two reaction products with molecular formulae C<sub>3</sub>H<sub>4</sub>O and C<sub>3</sub>H<sub>4</sub>O<sub>2</sub>. These products result from the addition of a single oxygen atom, or two oxygen

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27

Mallock, B., C. J. Harris, C. R. Hogg, and D. Jones. "Trimming of flight simulation ground models." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 211, no. 2 (1997): 91–102. http://dx.doi.org/10.1243/0954410971532523.

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A number of research programmes are being undertaken in the field of flight simulation. This paper accounts for a component of the research being performed under one of those programmes. The specific aim of the work presented in the paper was to establish a means whereby an aircraft and its associated undercarriage could be ‘trimmed’. The equilibrium condition is found without the need to run the full simulation model. This results in time saving without loss of accuracy. The trimming algorithm is detailed in terms of the method of solution and the range of shock strut and tyre models that can

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28

Chubarov, Anton. "Constructing the models of programmed flight for path calculation in designing tactical and anti-aircraft guided missiles." Eastern-European Journal of Enterprise Technologies 1, no. 4 (109) (2021): 21–30. http://dx.doi.org/10.15587/1729-4061.2021.225594.

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Abstract:

Several models of programmed flight have been constructed to perform calculations on flight path optimization in designing tactical and anti-aircraft-guided missiles. The developed models are based on the determination of interrelated programmed values of altitude and the flight path angle depending on the range which have a differential relationship. The combination of flight altitude and flight-path angle programs allows the users to simulate the steady flight of a guided missile to the calculated endpoint using the methods of proportional control. Good correspondence of the developed models

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29

Blakeley, Ruth, and Sam Raphael. "Human rights fact-finding and the CIA’s rendition, detention and interrogation programme: A response to Cordell." International Area Studies Review 21, no. 2 (2017): 169–78. http://dx.doi.org/10.1177/2233865917735428.

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In her article, ‘Measuring extraordinary rendition and international cooperation’, Rebecca Cordell seeks to subject the Rendition Flights Database to a model-based, statistical analysis. She argues that her analysis suggests that more countries were involved in the CIA’s rendition programme than our work has previously established, and that many more flights in the database are likely to be connected to rendition operations than we have identified. While we would not dispute the likelihood that both of these statements are correct, and we have always presented our findings with an acknowledgem

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Kowaleczko, Grzegorz, Krzysztof Grajewski, Szymon Kobiela, and Romuald Kaźmierczak. "The Impact of Standard Deviation of Wind on the Bomb Flight in Atmospheric Turbulence." Journal of KONBiN 51, no. 2 (2021): 79–91. http://dx.doi.org/10.2478/jok-2021-0023.

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Abstract The paper provides the simulation results of a small-diameter guided training bomb released during atmospheric turbulence. The simulation utilized a guided bombed devised at ITWL. Aerodynamic characteristics of the bomb were obtained from wind tunnel tests and from calculations made by the PRODAS programme. The simulation programme was developed based on a mathematical model describing a spatial motion of an aerial bomb moving in atmospheric turbulence. To describe a turbulence component, the model of stochastic processes proposed by Shinozuki was used. The manuscript includes example

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Hoggarth, R., and Richard Mange. "Highlights of the Lockheed Martin F-35 STOVL jet effects programme." Aeronautical Journal 113, no. 1140 (2009): 119–27. http://dx.doi.org/10.1017/s0001924000002864.

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Abstract This paper presents the highlights of the F-35 STOVL Jet Effects (SJE) test effort during the complete four years of the System Development and Demonstration phase. A new 12%-scale F-35 SJE model was tested in the German-Dutch wind-tunnels Large Low Speed Facility in order to gather STOVL jet-induced Forces and Moments. Ten separate test entries were conducted, covering all STOVL flight regimes from pure hover in ground effect through transition to wing borne flight. This paper will present an overview of this program, including a detailed description of the wind-tunnel model, testing

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Stepan, Vasyliv, and Ternova Kateryna. "Study of the flow structure during the injection of detonation products into the supersonic nozzle." System technologies 2, no. 145 (2023): 11–18. http://dx.doi.org/10.34185/1562-9945-2-145-2023-02.

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The gradual unloading of the space stage by undocking objects from it or an emer-gency situation due to the undocking of one of the spacecraft leads to mass asymmetry. In outer space there is also the problem of the collision of a space object with elements of space debris. Therefore, the relevance of the topic of this work is determined by the need to develop a system for avoiding the collision of a rocket with elements of space de-bris and controlling the flight, observing the programmed trajectory of movement. The gas-dynamic aircraft system is characterized by the highest speed control. In

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Voznesensky, E. A., N. N. Maiorov, and А. N. Terekhov. "Development of automation and control software for charging systems of multirotor small unmanned aircraft systems for tasks of cargo seaports." Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 16, no. 5 (2024): 805–16. https://doi.org/10.21821/2309-5180-2024-16-5-805-816.

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The paper considers the situation of using an unmanned aircraft system to perform autonomous flights between cargo port areas, for example, to collect data for building digital spatial models or to transfer a certain type of cargo. It is noted that due to the considerable size and remoteness of cargo terminals from each other it is necessary to place a network of automated charging stations. The efficiency of autonomous flights is substantiated and a new model of flight assignment of an unmanned aircraft system is given for solving the routing problem, taking into account the location of charg

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Stuber, N., and P. Forster. "Global contrail radiative forcing and the impact of diurnal variations of air the impact of diurnal variations of air." Atmospheric Chemistry and Physics Discussions 6, no. 5 (2006): 9123–49. http://dx.doi.org/10.5194/acpd-6-9123-2006.

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Abstract. We combined high resolution aircraft flight data from the EU Fifth Framework Programme project AERO2k with analysis data from the ECMWF's integrated forecast system to calculate diurnally resolved 3-D contrail cover. Calibrating for the 1992 contrail cover in the Bakan area (eastern-Atlantic/western-Europe), we obtained a global, annual mean contrail cover due to persistent, line-shaped contrails of 0.04%. Adopting a contrail visible optical depth of 0.1, this contrail cover results in a global, annual mean radiative forcing of 2.0 mW/m2 for all-sky and 2.1 mW/m2 for clear sky condit

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Cook, Matthew, and John P. T. Mo. "Structured Risk Modelling of Naval Aviation Program Life Cycle Integration and Operation." Journal of Industrial Integration and Management 05, no. 03 (2020): 291–309. http://dx.doi.org/10.1142/s2424862220500116.

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A strategic capability of contemporary naval ships is the ability to launch and recover embarked aircraft such as helicopters in a maritime environment. Such operations are enormously challenging due to deck motion, limited landing space, visibility, ship’s superstructure, etc. This places extreme pressure on the pilot, ship’s crew and the platforms alike, making such shipboard operations the most dangerous of all helicopter flight missions. Therefore, the design and integration of equipment, systems and aids to ensure such operations are done as safely as is practicably possible presents ship

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Cuero, Jairo, Javier Vargas, and Edwar Jacinto. "Flight Control of a 1-DOF Helicopter System using a Sliding Mode Controller for Disturbance Rejection." International Journal of Engineering Research and Technology (IJERT) 13, no. 11 (2020): 3292–97. https://doi.org/10.5281/zenodo.4310310.

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This document presents the design, implementation, and evaluation of a sliding mode controller to stabilize the angular position of a 1-DOF helicopter. The dynamic model of the helicopter was found using the system identification technique with the MATLAB toolbox. Also, a classic PID controller was designed to compare the behavior of both controllers and their robustness and disturbances rejection. The simulation of the control strategies was carried out in Simulink and programed on the STM32F411 microcontroller. The PID controller performed well under normal operating conditions, but, with a

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NELSON, AMY. "What the dogs did: animal agency in the Soviet manned space flight programme." BJHS Themes 2 (2017): 79–99. http://dx.doi.org/10.1017/bjt.2017.9.

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AbstractThis paper examines the agency of the dogs used to develop the Soviet manned space flight programme by considering what the dogs did as experimental subjects, as dog technologies, and as individual dogs in the context of the historically conditioned practices of Soviet science. Looking at how Soviet space researchers refined Pavlovian behaviourism and integrated it into a complex engineering project helps clarify the conditions under which the dogs worked and the assumptions that guided the human researchers. The paper uses theoretical perspectives that contextualize animal agency in t

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Alonso, Gustavo, and Arturo Benito. "The environmental impact assessment of greener trajectories: the GreAT project." Journal of Physics: Conference Series 2526, no. 1 (2023): 012014. http://dx.doi.org/10.1088/1742-6596/2526/1/012014.

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Abstract GreAT (Greener Air Traffic Operations) is a project funded by the European Commission under the H2020 framework programme. The overall objective is to reduce the fuel consumption and gas emissions during “gate-to-gate” flight phases through developing and assessing environment-friendly air traffic operational concept, adaptive airspace and green trajectory optimization technologies, and supporting avionic systems. Based on the scientific description of the impact of aviation emissions on the climate, the work within GreAT is seeking the key factors of the impact about aviation emissio

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Stamoulis, Konstantinos P., Stylianos K. Georgantzinos, and Georgios I. Giannopoulos. "A model of low-velocity impact damage assessment of laminated composite structures." MATEC Web of Conferences 188 (2018): 01012. http://dx.doi.org/10.1051/matecconf/201818801012.

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Laminated composites have important applications in modern aeronautical structures due to their extraordinary mechanical and environmental behaviour. Nevertheless, aircraft composite structures are highly vulnerable to impact damage, either by low-velocity sources during maintenance or high-velocity sources during in-flight events. Even barely visible impact damage induced by low-velocity loading, substantially reduces the residual mechanical performance and the safe-service life of the composites structures. Despite the extensive research already carried out, impact damage of laminated compos

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Burrage, B. "Enabling technologies for a centre-line tiltrotor." Aeronautical Journal 117, no. 1190 (2013): 389–414. http://dx.doi.org/10.1017/s000192400000806x.

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Abstract The success of the MV-22 Osprey has created the opportunity for a new design of gunship, tailored to the task of escorting it, an opportunity identified by many. Existing and emerging rotorcraft technology does not appear to have the complete capability, so this centre-line tiltrotor approach is aimed specifically at the escort duty. The mission is taken to be escorting the MV-22 throughout a land assault (Marine Corps), to provide cover while the MV-22 is on the ground at the landing zone, and to still have useful capacity for diversions. To meet this task this Escort concept stays w

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King, Oluwatosin Damilola, and Sunday Ayoola Oke. "Preventive Maintenance Planning in A Nigerian Aircraft Industry using Quality Function Deployment." Technological Engineering 15, no. 1 (2018): 27–37. http://dx.doi.org/10.1515/teen-2018-0005.

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Abstract Quality improvement research in aircraft maintenance as well as our knowledge of the methods in the course of which enhancement is achieved and managed is disoriented and deficient. Current preventive maintenance practices are usually based on the number of flight cycles, flight hours or calendar time. Such PM activities are technical programme-oriented without any consideration for customer requirements are expectations. The unfortunate issue is that the results provided by these technically-oriented decisions are usually sub-optional. After characterised by poor customer satisfactio

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Votsios, Vasilis, Esteban Martino-Gonzalez, and Jorge Lopez-Puente. "Development of Composite Propeller Blade Model for High Velocity Impacts on Aircraft Fuselage using Finite Element Analysis." MATEC Web of Conferences 304 (2019): 01008. http://dx.doi.org/10.1051/matecconf/201930401008.

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An open rotor blade failure and release event can result in a high energy impact on an aircraft fuselage that can reduce the strength of the structure and challenge the safe continuation of the flight and landing. This work highlights the development of a numerical approach and methodology in order to improve the assessment of the damage predictions of a composite propeller blade impact against the fuselage of an aircraft to be able to estimate a minimum thickness of shielding for the full protection of the airframe. A number of dynamic simulations were carried out, from rigid up to deformable

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Mutanda, Darlington. "Post-Colonial Violence in Zimbabwe and the Significance of Peacebuilding Premised on Civilian Survival Strategies." Journal of Peacebuilding & Development 14, no. 2 (2019): 179–92. http://dx.doi.org/10.1177/1542316619850159.

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Guided by the theory of conflict transformation, this article contributes to knowledge through articulating the significance of peacebuilding that is centred on civilian survival strategies (CSS) of flight, silence, voice, and joining the perpetrators of violence. The purpose is to articulate what could be done to promote reconciliation and build peace in a heavily polarised environment. CSS aid in identifying, from the perspective of the victims and even witnesses, the aspects that need to be built into the reconciliation process in Zimbabwe, and how these can enable reconciliation to take pl

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Tack, Frederik, Alexis Merlaud, Marian-Daniel Iordache, et al. "Assessment of the TROPOMI tropospheric NO<sub>2</sub> product based on airborne APEX observations." Atmospheric Measurement Techniques 14, no. 1 (2021): 615–46. http://dx.doi.org/10.5194/amt-14-615-2021.

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Abstract. Sentinel-5 Precursor (S-5P), launched in October 2017, carrying the TROPOspheric Monitoring Instrument (TROPOMI) nadir-viewing spectrometer, is the first mission of the Copernicus Programme dedicated to the monitoring of air quality, climate, and ozone. In the presented study, the TROPOMI tropospheric nitrogen dioxide (NO2) level-2 (L2) product (OFFL v1.03.01; 3.5 km × 7 km at nadir observations) has been validated over strongly polluted urban regions by comparison with coincident high-resolution Airborne Prism EXperiment (APEX) remote sensing observations (∼ 75 m × 120 m). Satellite

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Norshahidatul Hasana Ishak, Muhamad Abdul Hakim Mat Nang, Hazrati Zaini, Nur Nabilah Abu Mangshor, and Zuhri Arafah Zulkifli. "Implementation of Augmented Reality in a Mobile Application for In-Flight Emergency Equipment and Evacuation Procedure." Journal of Advanced Research in Applied Sciences and Engineering Technology 46, no. 2 (2024): 108–23. http://dx.doi.org/10.37934/araset.46.2.108123.

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Aircraft safety is the highest priority for every airplane. In relation to this, emergency procedures must be learned when onboarding the aircraft. In the current method, flight attendants will explain the proper procedures should any emergency happen by demonstrating it in front of the passengers or using the handout provided at each seat. However, this method is not promising because passengers might not be unaware of the safety procedures due to unclear explanations and distractions from the surroundings. Hence, taking this as an opportunity, this study aims to design an application that pr

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Gierens, K. M., U. Schumann, H. G. J. Smit, M. Helten, and G. Zängl. "Determination of humidity and temperature fluctuations based on MOZAIC data and parametrisation of persistent contrail coverage for general circulation models." Annales Geophysicae 15, no. 8 (1997): 1057–66. http://dx.doi.org/10.1007/s00585-997-1057-3.

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Abstract. Humidity and temperature fluctuations at pressure levels between 166 and 290 hPa on the grid scale of general circulation models for a region covered by the routes of airliners, mainly over the Atlantic, have been determined by evaluation of the data obtained with almost 2000 flights within the MOZAIC programme. It is found that the distributions of the fluctuations cannot be modelled by Gaussian distributions, because large fluctuations appear with a relatively high frequency. Lorentz distributions were used for the analytical representation of the fluctuation distributions. From th

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Abdelhakim, Ayman Safi, Eleri Jones, Elizabeth C. Redmond, Christopher J. Griffith, and Mahmoud Hewedi. "Evaluating cabin crew food safety training using the Kirkpatrick model: an airlines’ perspective." British Food Journal 120, no. 7 (2018): 1574–89. http://dx.doi.org/10.1108/bfj-07-2017-0395.

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Purpose The purpose of this paper is to explore the evaluation of cabin crew food safety training using the Kirkpatrick model. Design/methodology/approach Using a snowballing technique, 26 cabin crew, managers, supervisors and trainers participated in in-depth, semi-structured interviews. Summative content analysis was used to evaluate the data. Findings In total, 26 respondents from 20 international airlines participated in the study. All respondents agreed that evaluating cabin crew food safety/hygiene issues is important in relation to in-flight food handling; for example, “Training evaluat

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Шийко, Олександр Миколайович, Анатолій Михайлович Павлюченко, Андрій Вікторович Скорик, Олексій Анатолійович Обухов та Ігор Володимирович Коплик. "РОЗРАХУНОК АЕРОДИНАМІЧНИХ ХАРАКТЕРИСТИК НАДЗВУКОВИХ ОПЕРЕНИХ ОСЕСИМЕТРИЧНИХ ТІЛ ОБЕРТАННЯ". Aerospace technic and technology, № 2 (22 квітня 2019): 4–17. http://dx.doi.org/10.32620/aktt.2019.2.01.

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The subject of research in the article is the aerodynamic forces arising from the flight of supersonic feathered rotation bodies such as unguided rockets. The aim of the work is to develop a method for calculating the aerodynamic coefficients of the resultant forces and moments of supersonic feathered bodies of revolution such as unguided missiles when flown around at an angle of attack with pre-, trans- and supersonic speeds according to drawings of their external contours. Tasks: using modern software systems and flight experiments, develop a method for calculating the distribution of normal

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Adnew, Getachew Agmuas, Gerbrand Koren, Neha Mehendale, Sergey Gromov, Maarten Krol, and Thomas Röckmann. "Triple oxygen isotope composition of CO₂ in the upper troposphere and stratosphere." Atmospheric Measurement Techniques 18, no. 12 (2025): 2701–19. https://doi.org/10.5194/amt-18-2701-2025.

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Abstract. High-precision measurements of the triple oxygen isotope composition of CO2 (Δ′17O) can be used to estimate biosphere–atmosphere exchange of CO2, the residence time of tropospheric CO2, and stratosphere–troposphere exchange. In this study, we report measurements of the Δ′17O(CO2) from air samples collected during two aircraft-based programmes, CARIBIC and StratoClim. CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container) provided air samples from numerous transcontinental flights in the upper troposphere–lower stratosphere region. St

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Solazzo, E., R. Bianconi, G. Pirovano, et al. "Four-dimensional evaluation of regional air quality models." Geoscientific Model Development Discussions 6, no. 1 (2013): 521–84. http://dx.doi.org/10.5194/gmdd-6-521-2013.

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Abstract. The evaluation of regional air quality models is a challenging task, not only for the intrinsic complexity of the topic but also in view of the difficulties in finding sufficiently abundant, harmonized and time/space-well-distributed measurement data. This study, conducted in the framework of AQMEII (Air Quality Model Evaluation International Initiative), evaluates 4-D model predictions obtained from 15 modelling groups and relating to the air quality of the full year of 2006 over the North American and European continents. The modelled variables are ozone, CO, wind speed and directi

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