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Journal articles on the topic 'Flights control center'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Khabibullin, R. M., and O. L. Starinova. "Non-coplanar interplanetary flight simulation considering motion relative to the center of mass peculiarities of solar sail spacecraft." Spacecrafts & Technologies 4, no. 3 (2020): 141–50. http://dx.doi.org/10.26732/j.st.2020.3.02.

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The paper is devoted to the non-coplanar interplanetary Earth–Venus flight of a spacecraft equipped with a non-perfectly reflecting solar sail, the magnitude and direction of acceleration from which is calculated taking into account specular and diffuse reflections, absorption and transmission of photons by the surface of the solar sail. The goal of the heliocentric motion is to transfer the solar sail spacecraft into the Hill sphere of Venus with zero hyperbolic excess of speed. A feature of the paper is the study of the motion of a non-perfectly reflecting solar sail spacecraft taking into a

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Fruncillo, Felice, Luigi Federico, Marco Cicala, and Roberto Citarella. "Development and Validation of an Aeropropulsive and Aeroacoustic Simulation Model of a Quadcopter Drone." Drones 6, no. 6 (2022): 143. http://dx.doi.org/10.3390/drones6060143.

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In the present work a dynamic simulation model for a quadcopter drone is developed and validated through experimental flight data. The aerodynamics of the rotors is modeled with the blade element theory combined with the Peters and He dynamic wake model, using an appropriate number of states. The aerodynamic forces and moments thus calculated feed the dynamic equations of a drone and an aeroacoustics model, to obtain an estimate of the noise generated during the flight. Loading and thickness noise are calculated as a time domain solution of the wave equation (Farassat 1A formulation), with mob

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Roshanbin, A., H. Altartouri, M. Karásek, and A. Preumont. "COLIBRI: A hovering flapping twin-wing robot." International Journal of Micro Air Vehicles 9, no. 4 (2017): 270–82. http://dx.doi.org/10.1177/1756829317695563.

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This paper describes the results of a six-year project aiming at designing and constructing a flapping twin-wing robot of the size of hummingbird ( Colibri in French) capable of hovering. Our prototype has a total mass of 22 g, a wing span of 21 cm and a flapping frequency of 22 Hz; it is actively stabilized in pitch and roll by changing the wing camber with a mechanism known as wing twist modulation. The proposed design of wing twist modulation effectively alters the mean lift vector with respect to the center of gravity by reorganization of the airflow. This mechanism is modulated by an onbo

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Muliasari, Ataline. "Upaya Bandara Ngurah Rai Denpasar Dalam Mewujudkan Safety Management System (SMS)." Warta Penelitian Perhubungan 22, no. 5 (2010): 481–96. http://dx.doi.org/10.25104/warlit.v22i5.1113.

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Each airport management including Denpasar Ngurah Rai International Airport are required tocreate, implement, eunluate and impmue the sustainnble safe~; rruznagement si;stem (SMS) with asafehJ program based on intemntionnl mzd nntionnl flight s. Relnted to the nhaue, ns nn internationalairport located in the center of touris111 lcxatio11 of hzdonesin, Nguralt Rni lntenuztional Airport tnjingto realize its SafehJ Management System (SMS). Ihis condition is certainly important to be realizedconsidering the level of aircraft mauements for both international and national flights is very high atthis

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Soldatenko, A. V., V. F. Pivovarov, O. N. Pyshnaya, L. K. Gurkina, and M. M. Tareeva. "Greenhouses in space: from intention to implementation." Vegetable crops of Russia, no. 2 (April 6, 2023): 5–10. http://dx.doi.org/10.18619/2072-9146-2023-2-5-10.

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April 12 is Cosmonautics Day, International Day of Human Space Flight. This is a memorable date dedicated to the flight of the first cosmonaut of the planet, Yuri Alekseevich Gagarin, who became a symbol of the earthlings' dream come true. The All-Russian Research Institute of Vegetable Breeding and Seed Production (Federal State Budgetary Scientific Institution Federal Scientific Vegetable Center (FSBSI FSVC)), like a number of other academic institutions, from the beginning of space exploration, got involved in the work to solve the problem of developing food for astronauts and continues res

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Hoang Quan, Nguyen Ngoc, and V. N. Nechaev. "Proposals for designing the airspace management of the ATM sectors of the Ho Chi Minh City Area Control Center to increase its capacity." Civil Aviation High Technologies 27, no. 3 (2024): 50–66. http://dx.doi.org/10.26467/2079-0619-2024-27-3-50-66.

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According to the International Air Transport Association (IATA), Vietnam is among the countries with the rapid development of civil aviation (CA). This development is a positive sign to enhance the role and position of Vietnam civil aviation in the civil aviation community. But at the same time, the increase in flight operations poses challenges to flight safety, increases the load on airspace and airports, and pollutes the environment. The Ho Chi Minh City (HCM) airspace is one of the largest and busiest airspace in Southeast Asia. Every year, thousands of flights depart, arrive, and cross th

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Atallah, Stephanie, and Susan Hotle. "Evaluation of Airport Size and Delay Causal Factor Effects on Delay Propagation Dissipation." Transportation Research Record: Journal of the Transportation Research Board 2676, no. 3 (2021): 608–20. http://dx.doi.org/10.1177/03611981211055663.

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The International Civil Aviation Organization identifies departure and arrival punctuality as on-time key performance indicators. However, these metrics assume a flight’s delay is a result of either the origin or destination airport, providing limited information on where delay should be mitigated in the U.S. National Airspace System (NAS). This study evaluates the relationship between delay propagation magnitude, delay causal factor, airport size, and charged facility (airport or Air Route Traffic Control Center), to examine if certain delays take longer to dissipate. First, using flights fro

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Huang, Lixiao, Victoria Chibuogu Nneji, and Mary Cummings. "How Airline Dispatchers Manage Flights: A Task Analysis in Distributed and Heterogeneous Network Operations." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 63, no. 1 (2019): 1389–93. http://dx.doi.org/10.1177/1071181319631182.

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Equipped with technology, airline dispatchers interact with multiple entities to maximize the safety and efficiency of flights. How well the overall airline system performs is influenced by dispatchers’ workload. In order to assist future work in developing advanced automated technologies to assist dispatchers, particularly under high-workload periods, this paper presents an analysis of airline dispatchers’ tasks in a large operations control center. This is an important step in developing airline dispatcher workload simulations and other analytical approaches that assist in staffing of operat

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Speese, John. "Soil and Foliar Insecticides to Control Insects in Sweet Potatoes, Painter, VA, 1994." Arthropod Management Tests 20, no. 1 (1995): 133. http://dx.doi.org/10.1093/amt/20.1.133a.

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Abstract Sweet potatoes were planted on 17 Jun at the Eastern Shore Agricultural Research and Extension Center, Painter, VA. Each plot consisted of 3 rows 20 ft long on 3 ft spacing, replicated six times in a randomized, complete block design. A single untreated guard row separated each plot. Soil treatments were applied immediately prior to planting in the manner indicated in the table and incorporated. Lorsban 4E and Fipronil 80WG were applied using a 6 flat fan nozzle boom backpack sprayer delivering 20 gal water/acre at 40 psi. The gallonage was increased to 40 gal/acre for the Sevin folia

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Fu, Yu, Shaofu Lin, and Zhenkai Xu. "Research on Quantitative Analysis of Multiple Factors Affecting COVID-19 Spread." International Journal of Environmental Research and Public Health 19, no. 6 (2022): 3187. http://dx.doi.org/10.3390/ijerph19063187.

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The Corona Virus Disease 2019 (COVID-19) is spreading all over the world. Quantitative analysis of the effects of various factors on the spread of the epidemic will help people better understand the transmission characteristics of SARS-CoV-2, thus providing a theoretical basis for governments to develop epidemic prevention and control strategies. This article uses public data sets from The Center for Systems Science and Engineering at Johns Hopkins University (JHU CSSE), Air Quality Open Data Platform, China Meteorological Data Network, and WorldPop website to construct experimental data. The

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Mei, Fan, Mikhail S. Pekour, Darielle Dexheimer, et al. "Observational data from uncrewed systems over Southern Great Plains." Earth System Science Data 14, no. 7 (2022): 3423–38. http://dx.doi.org/10.5194/essd-14-3423-2022.

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Abstract. Uncrewed Systems (UxS), including uncrewed aerial systems (UAS) and tethered balloon/kite systems (TBS), are significantly expanding observational capabilities in atmospheric science. Rapid adaptation of these platforms and the advancement of miniaturized instruments have resulted in an expanding number of datasets captured under various environmental conditions by the Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) user facility. In 2021, observational data collected using ARM UxS platforms, including seven TigerShark UAS flights and 133 tethered balloon system (T

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Speese, J. "Soil Insect Control in Sweet Potatoes, Virginia, 1992." Insecticide and Acaricide Tests 18, no. 1 (1993): 169–70. http://dx.doi.org/10.1093/iat/18.1.169a.

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Abstract Sweet potatoes were transplanted on 18 May in a commercial field owned by J. H. Drewer & Sons near Painter, VA. Each plot consisted of 3 35 ft rows bordered on each side by an untreated row with 3 ft between rows. Each treatment was replicated 4 times in a randomized complete block design. Sprays were applied with a 5 nozzle flat fan boom backpack sprayer delivering 17 gal water/acre at 40 psi. Temik was applied in a 12 inch band with a hand-held shaker. The water volume for the Sevin foliar sprays was increased to 35 gal/acre on 10 Aug after the vines began to run. Foliar sprays

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Oktay, Tugrul, Harun Celik, and Ilke Turkmen. "Maximizing autonomous performance of fixed-wing unmanned aerial vehicle to reduce motion blur in taken images." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 232, no. 7 (2018): 857–68. http://dx.doi.org/10.1177/0959651818765027.

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In this study, reducing motion blur in images taken by our unmanned aerial vehicle is investigated. Since shakes of unmanned aerial vehicle cause motion blur in taken images, autonomous performance of our unmanned aerial vehicle is maximized to prevent it from shakes. In order to maximize autonomous performance of unmanned aerial vehicle (i.e. to reduce motion blur), initially, camera mounted unmanned aerial vehicle dynamics are obtained. Then, optimum location of unmanned aerial vehicle camera is estimated by considering unmanned aerial vehicle dynamics and autopilot parameters. After improvi

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Kruchinin, P. A., A. P. Kruchinina, I. A. Kudryashov, et al. "Quantifi cation of Changes in the Functional Status of a Person During the Aircraft Flight." Mekhatronika, Avtomatizatsiya, Upravlenie 23, no. 12 (2022): 651–60. http://dx.doi.org/10.17587/mau.23.651-660.

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The article is devoted to the approach to the quantitative estimation of changes in the functional state of a person during an airplane flight based on the results of stabilometric and oculographic examinations of airplane passengers carried out before and after the flight. Fourteen volunteers of both sexes participated in the study. They performed 21 pairs of pre-flight and post-flight examinations. For the existing sample of volunteers, parameters were identified that had a consistent trend of change. These parameters include visual tracking quality and stabilometric characteristics. In 70 %

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Klimishen, Oleksii, Andrii Krasnorutskyi, and Serhii Kochuk. "APPLICATION OF WIRELESS COMMUNICATION AND TECHNICAL VISION TECHNOLOGIES TO IMPROVE AVIATION SEARCH AND RESCUE OPERATIONS." Innovative Technologies and Scientific Solutions for Industries, no. 2 (24) (August 5, 2023): 72–79. http://dx.doi.org/10.30837/itssi.2023.24.072.

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The subject of research in the article is approaches to improving the onboard equipment of a search and rescue aircraft (AC). The purpose of the study is to develop proposals for improving the technical means of searching for aircraft that have suffered an accident, namely video surveillance systems and information transmission to the control centers (CC) of the search and rescue operation, based on the analysis of the Rules for Search and Rescue Support of Flights of the State Aviation of Ukraine and foreign experience in search and rescue operations. It is proposed to use a light multipurpos

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Reineman, Benjamin D., Luc Lenain, Nicholas M. Statom, and W. Kendall Melville. "Development and Testing of Instrumentation for UAV-Based Flux Measurements within Terrestrial and Marine Atmospheric Boundary Layers." Journal of Atmospheric and Oceanic Technology 30, no. 7 (2013): 1295–319. http://dx.doi.org/10.1175/jtech-d-12-00176.1.

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Abstract Instrumentation packages have been developed for small (18–28 kg) unmanned aerial vehicles (UAVs) to measure momentum fluxes as well as latent, sensible, and radiative heat fluxes in the atmospheric boundary layer (ABL) and the topography below. Fast-response turbulence, hygrometer, and temperature probes permit turbulent momentum and heat flux measurements, and shortwave and longwave radiometers allow the determination of net radiation, surface temperature, and albedo. UAVs flying in vertical formation allow the direct measurement of fluxes within the ABL and, with onboard high-resol

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Shved, Dmitry, Natalia Supolkina, and Anna Yusupova. "The Communicative Behavior of Russian Cosmonauts: “Content” Space Experiment Result Generalization." Aerospace 11, no. 2 (2024): 136. http://dx.doi.org/10.3390/aerospace11020136.

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The increasing complexity of the space flight program and the increase in the duration of missions require an improvement in psychological monitoring tools for astronauts in orbit. This article summarizes the experience of using quantitative content analysis of communication between the crews and the Mission Control Center (MCC). This method allows us to assess the dynamics of an astronaut’s psycho-emotional state, identify their communicative style, and detect the communication phenomena of board-MCC communication. The method is based on a combination of the coping strategies approach by Laza

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Seagull, F. Jacob, and Daniel Gopher. "Expanding the Envelope of Performance: Training Pilots to Use Helmet Mounted Displays." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 1 (1994): 11–15. http://dx.doi.org/10.1177/154193129403800104.

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Helmet Mounted flight Displays (HMDs) of a through-the-window field-of-view (FOV) are widely used in modern aircraft for night vision. Unfortunately, pilots using such displays are susceptible to spatial disorientation due to the limited field-of-view and its consequent lack of orientation cues. This problem is especially pronounced when pilots move their heads, though this is precisely the behavior that enables them to counteract the limited FOV. The current experiment attempted to train pilots to move their heads without becoming disoriented. Twenty-five subjects participated in five treatme

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Speese, John. "Comparison of Various Soil Insecticides And Foliar Sprays for Soil Insect Control in Sweet Pota-Toes, Painter, Va, 1995." Arthropod Management Tests 21, no. 1 (1996): 176–77. http://dx.doi.org/10.1093/amt/21.1.176a.

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Abstract Sweet potatoes were transplanted on 20 Jun at the Eastern Shore Agricultural Research and Extension Center, Painter. VA. Each plot consisted of 3 rows 20 ft long, planted on 3 ft row spacing. An untreated guard row separated each plot from each other. Treatments were replicated 6 times in a RCB design. In furrow and band treatments, and the initial foliar sprays were applied with a single nozzle boom backpack sprayer. Granular treatments were applied with a hand held shaker. The Mocap treatments were applied on 25 May to avoid phytotoxicity. The later foliar sprays were applied with a

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Filatov, Anton, Mark Zaslavskiy, and Kirill Krinkin. "Multi-Drone 3D Building Reconstruction Method." Mathematics 9, no. 23 (2021): 3033. http://dx.doi.org/10.3390/math9233033.

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In the recent decade, the rapid development of drone technologies has made many spatial problems easier to solve, including the problem of 3D reconstruction of large objects. A review of existing solutions has shown that most of the works lack the autonomy of drones because of nonscalable mapping techniques. This paper presents a method for centralized multi-drone 3D reconstruction, which allows performing a data capturing process autonomously and requires drones equipped only with an RGB camera. The essence of the method is a multiagent approach—the control center performs the workload distri

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Kownacki, Cezary. "A concept of laser scanner designed to realize 3D obstacle avoidance for a fixed-wing UAV." Robotica 34, no. 2 (2014): 243–57. http://dx.doi.org/10.1017/s0263574714001404.

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SUMMARYThis paper presents a concept of a laser scanner framework designed for obstacle avoidance used on mini fixed-wing unmanned aerial vehicles (UAVs) flying in outdoor environments. The innovation is a conical field of view that guarantees tri-dimensional (3D) obstacle detection and localization at any pitch or roll angle. This advantage is very important for the case of fixed-wing UAV flights where the attitude is changing rapidly. Measurement sequences create a map that is represented by a circular grid with the center fitted to thex-axis of the UAV's body, lying in the plane normal to t

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Becker, Denise, and Jörg Klonowski. "Object Recognition of a GCP Design in UAS Imagery Using Deep Learning and Image Processing—Proof of Concept Study." Drones 7, no. 2 (2023): 94. http://dx.doi.org/10.3390/drones7020094.

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Image-based unmanned aircraft systems (UASs) are used in a variety of geodetic applications. Precise 3D terrain surface mapping requires ground control points (GCPs) for scaling and (indirect) georeferencing. In image analysis software (e.g., Agisoft Metashape), the images can be generated to a 3D point cloud using Structure-from-Motion (SfM). In general, the conventional GCP design for UAS flights is a checkerboard pattern, which is provided in the software and used for automatic marker detection in each image. When changing the pattern, manual work would be required by picking the GCP indivi

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de Celis, Raul, and Luis Cadarso. "Spot-Centroid Determination Algorithms in Semiactive Laser Photodiodes for Artillery Applications." Journal of Sensors 2019 (January 27, 2019): 1–12. http://dx.doi.org/10.1155/2019/7938415.

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Precision of guided projectiles depends equally on the accuracy in determining the coordinates of the objective and on the exactness of the measurement devices utilized for position and attitude calculation of the projectile. Development of algorithms for low-cost high-precision terminal guidance systems is a cornerstone in research in this field. Semiactive laser (SAL) kits, and particularly quadrant detector devices, have been developed to improve precision in guided weapons. Photodetection system can be functionally divided into two main parts: sensing and processing. The sensed signal is p

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Kobaszyńska-Twardowska, Anna, and Monika Wantuła. "Safety systems of luggage transport in air traffic." WUT Journal of Transportation Engineering 130 (September 1, 2020): 43–52. http://dx.doi.org/10.5604/01.3001.0014.5218.

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The transport system from the safety point of view consists of: technical objects, operators and human resources, operation safety subsystems, and system management center. In the area of these subsystems, there may be hazardous sources of external or internal character. Based on the analysis of transport systems, it is concluded that man causes numerous mistakes. The baggage control system and the persons responsible for the functioning of this system have a significant impact on airports' safety level. Dia-grams of multi-stage processes for checking hand luggage and checked baggage has been

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Janovec, Michal, Jozef Čerňan, Filip Škultéty, and Andrej Novák. "Design of Batteries for a Hybrid Propulsion System of a Training Aircraft." Energies 15, no. 1 (2021): 49. http://dx.doi.org/10.3390/en15010049.

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In this article, we propose the parameters of a battery that would be suitable for the conceptual design of a small training aircraft. The mass design of the battery is based on the requirements for real training flights performed by students in pilot training. Such a serial hybrid propulsion aircraft could be used in our UNIZA aviation, training and education center for pilot training. Due to socio-political pressures in reducing emissions generated by vehicles, there has also been massive research in the aviation industry in the field of hybrid and electric aircraft propulsion. In the introd

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Nechaev, Evgeniy E., and Andrey O. Nikulin. "THE ANALYTICAL TREATMENT OF THE SYSTEM "SYNCHRON" AT SHEREMETYEVO AIRPORT IN ADVERSE WEATHER CONDITIONS." Civil Aviation High TECHNOLOGIES 21, no. 6 (2018): 31–42. http://dx.doi.org/10.26467/2079-0619-2018-21-6-31-42.

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Airport Collaborative Decision Making (A-CDM) is a collaborative process management tool in accordance with agreed procedures to improve the performance of all partners in all situations. The A-CDM system for the airport is a part in the control process cycle of arriving and departing aircraft flows, ground handling operation and management along the routes of the flight. The introduction of the A-CDM element "Adverse Conditions" at Sheremetyevo airport makes it possible to control the reduction of the airport capacity and facilitates the process of its rapid recovery. Data on the increase in

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Pagliari, Emanuele, Luca Davoli, Giordano Cicioni, Valentina Palazzi, and Gianluigi Ferrari. "On UAV Terrestrial Connectivity Enhancement through Smart Selective Antennas." Journal of Physics: Conference Series 2716, no. 1 (2024): 012057. http://dx.doi.org/10.1088/1742-6596/2716/1/012057.

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Abstract Nowadays, Unmanned Aerial Vehicles (UAVs) are widely used in heterogeneous contexts and, thanks to a continuous technological evolution, are going to be used for several applications such as, for example, Beyond Visual Line of Sight (BVLOS) operations. Since in BVLOS flights the UAV and the ground control center may not have a direct visibility with each other, a robust communication system is needed to provide reliable connectivity. Although a cellular (4G/5G) network is the current best candidate to enable BVLOS applications, there are still some limitations to overcome, as 4G (LTE)

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Romaniuk, L., and I. Chykhira. "MECHANISM OF ENSURING SAFE UAV MOVEMENT UNDER THE CONDITIONS OF RADIO ATTACKS." Municipal economy of cities 4, no. 157 (2020): 178–83. http://dx.doi.org/10.33042/2522-1809-2020-4-157-178-183.

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Purpose. The aim of the article is to reveal the mechanism of formation of safe UAV movement in the conditions of radio attacks. Methodology. Scientists from Ternopil National Technical University named after Ivan Pulyuy have consistently developed and studied several mechanisms for the formation of safe movement of unmanned aerial vehicles in radio attacks in order to create a perfect model with which to launch UAVs in areas with high radio attack. As a result of previous work, the mechanism of formation of safe movement of UAVs in the conditions of radio attacks based on methods of increasin

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Tian, Wen, Qin Fang, Xuefang Zhou, and Fan Yang. "The Method of Trajectory Selection Based on Bayesian Game Model." Sustainability 14, no. 18 (2022): 11491. http://dx.doi.org/10.3390/su141811491.

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To cope with the problem that most of the en-route spatial-temporal resource allocation in the collaborative trajectory options program (CTOP) only considers the air traffic control system command center (ATCSCC) while ignoring the needs of the airlines, which results in the loss of fairness, this study explores resource allocation methods oriented to airline trajectory preferences with optional trajectory and entry slots of flights over the flow constrained area (FCA) as the research object. Using game theory to analyze airline trajectory preference information and a Bayesian game model based

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Babokin, M. I., and V. Yu Savostyanov. "Selection of the optimal pulse repetition rate for SAR with a spotlight viewing of the surface." Ural Radio Engineering Journal 8, no. 4 (2024): 438–50. https://doi.org/10.15826/urej.2024.8.4.002.

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The article discusses a method of generating the pulse repetition rate, which makes it possible to simplify signal processing algorithms and significantly reduces the computational load on the on-board processor in an air-born synthetic aperture radar (SAR) with a spotlight mode. Based on the analysis of the geometry of the SAR telescopic shooting mode, the algorithm of optimal control of the pulse repetition frequency is obtained, which compensates changes in the inclined range and viewing angle of the antenna beam during mapping. It is important to note that at the same time, signals migrati

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Шаталова, Н. В., О. В. Бородина, and М. Ю. Михайлова. "Model of intelligent motion control of an unmanned aircraft system when landing on moving marine objects." MORSKIE INTELLEKTUAL`NYE TEHNOLOGII)</msg> 1, no. 3(65) (2024): 239–47. http://dx.doi.org/10.37220/mit.2024.65.3.046.

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Смещение центра масс снаряженного летательного аппарата, движущегося в непрерывно изменяющемся профиле движущихся воздушных масс процесс нестабильный и требует постоянной компенсации. Пилоту для визуального контакта с движущимся морским объектом необходимо управлять не только продольной устойчивость гидросамолёта, но и его пространственному положению по отношению к плоскости движущегося морского объекта. Компенсировать аэродинамический профиль полёта призваны системы обратной связи бортового оборудования летательного аппарата. В статье проведен анализ мирового опыта интеграции беспилотных лета

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Vernazza-Martin, S., N. Martin, and J. Massion. "Kinematic Synergy Adaptation to Microgravity During Forward Trunk Movement." Journal of Neurophysiology 83, no. 1 (2000): 453–64. http://dx.doi.org/10.1152/jn.2000.83.1.453.

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The aim of the present investigation was to see whether the kinematic synergy responsible for equilibrium control during upper trunk movement was preserved in absence of gravity constraints. In this context, forward trunk movements were studied during both straight-and-level flights (earth-normal gravity condition: normogravity) and periods of weightlessness in parabolic flights (microgravity). Five standing adult subjects had their feet attached to a platform, their eyes were open, and their hands were clasped behind their back. They were instructed to bend the trunk (the head and the trunk t

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Herrero-Huerta, Monica, Diego Gonzalez-Aguilera, and Yang Yang. "Structural Component Phenotypic Traits from Individual Maize Skeletonization by UAS-Based Structure-from-Motion Photogrammetry." Drones 7, no. 2 (2023): 108. http://dx.doi.org/10.3390/drones7020108.

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The bottleneck in plant breeding programs is to have cost-effective high-throughput phenotyping methodologies to efficiently describe the new lines and hybrids developed. In this paper, we propose a fully automatic approach to overcome not only the individual maize extraction but also the trait quantification challenge of structural components from unmanned aerial system (UAS) imagery. The experimental setup was carried out at the Indiana Corn and Soybean Innovation Center at the Agronomy Center for Research and Education (ACRE) in West Lafayette (IN, USA). On 27 July and 3 August 2021, two fl

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Rodrigues, F. A., P. Defourny, B. Gérard, F. San Vicente, and A. Loladze. "Use of remote sensing technology in the assessment of resistance of maize to tar spot complex." Advances in Animal Biosciences 8, no. 2 (2017): 259–63. http://dx.doi.org/10.1017/s2040470017001212.

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Assessment of Tar Spot Complex (TSC) severity in maize breeding experiments is conducted visually and may sometimes result in inconsistencies due to human interpretation. Disease scoring using remote sensing technologies may help bring more precision to the phenotyping process. An experiment for assessment of grain yield losses due to TSC was conducted at the Aguafria Experimental Station of the International Center for Wheat and Maize Improvement – CIMMYT in Mexico. Twenty-five maize genotypes were planted in spring of 2016 under a fungicide treatment to control TSC development and no fungici

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Xiang, Yalun, Xiaokang Lei, Zhongxing Duan, Fangnan Dong, and Yanru Gao. "Self-Organized Patchy Target Searching and Collecting with Heterogeneous Swarm Robots Based on Density Interactions." Electronics 12, no. 12 (2023): 2588. http://dx.doi.org/10.3390/electronics12122588.

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The issue of searching and collecting targets with patchy distribution in an unknown environment is a challenging task for multiple or swarm robots because the targets are unevenly dispersed in space, which makes the traditional solutions based on the idea of path planning and full spatial coverage very inefficient and time consuming. In this paper, by employing a novel framework of spatial-density-field-based interactions, a collective searching and collecting algorithm for heterogeneous swarm robots is proposed to solve the challenging issue in a self-organized manner. In our robotic system,

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Hertzog, Albert, Claude Basdevant, and François Vial. "An Assessment of ECMWF and NCEP–NCAR Reanalyses in the Southern Hemisphere at the End of the Presatellite Era: Results from the EOLE Experiment (1971–72)." Monthly Weather Review 134, no. 11 (2006): 3367–83. http://dx.doi.org/10.1175/mwr3256.1.

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Abstract This article estimates the biases and standard deviations of the 40-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40) and the 50-yr National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) Reanalysis (NN50) in the upper troposphere and lower stratosphere in 1971–72. These estimates are obtained by comparing the reanalyzed temperatures and winds with EOLE observations, a dataset collected during 480 superpressure-ballon flights in the Southern Hemisphere (SH). Dedicated algorithms have been developped to control

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Bertelli Fogaça, Lucas, Eder Henriqson, Guido Carim Junior, and Felipe Lando. "Airline Disruption Management: A Naturalistic Decision-Making Perspective in an Operational Control Centre." Journal of Cognitive Engineering and Decision Making 16, no. 1 (2022): 3–28. http://dx.doi.org/10.1177/15553434211061024.

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Operations Control Centres (OCCs) are critical structures used by airlines to oversee the execution of all planned flights, managing punctuality, regularity and customer support. In this study, we investigated the decision-making during flight disruptions inside an OCC from the naturalistic decision-making perspective. We conducted a mini-ethnography case study in a major South American airline, focussing on how functions critical to the flight disruption management cope with variability. Data collection included document analyses, field notes, direct observations and interviews. The functiona

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Mei, Fan, Jennifer M. Comstock, Mikhail S. Pekour, et al. "Atmospheric Radiation Measurement (ARM) airborne field campaign data products between 2013 and 2018." Earth System Science Data 16, no. 11 (2024): 5429–48. http://dx.doi.org/10.5194/essd-16-5429-2024.

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Abstract. Airborne measurements are pivotal for providing detailed, spatiotemporally resolved information about atmospheric parameters and aerosol and cloud properties, thereby enhancing our understanding of dynamic atmospheric processes. For 30 years, the US Department of Energy (DOE) Office of Science supported an instrumented Gulfstream 1 (G-1) aircraft for atmospheric field campaigns. Data from the final decade of G-1 operations were archived by the Atmospheric Radiation Measurement (ARM) Data Center and made publicly available at no cost to all registered users. To ensure a consistent dat

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Srinath, Chandan, and Sakshi Srivastava. "AI-Driven FlightOps: Revolutionizing Airline Operations Control with Predictive Analytics and NLP." International Journal for Research in Applied Science and Engineering Technology 12, no. 9 (2024): 501–6. http://dx.doi.org/10.22214/ijraset.2024.64223.

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Abstract: Flight operations control centers (OCCs) are the nerve centers of airline operations, tasked with managing a wide range of activities such as flight scheduling, crew assignments, maintenance coordination, and dealing with disruptions. While traditional approaches have relied heavily on human decision-making and manual analysis of operational data, the increasing complexity of modern airline operations demands more efficient solutions. This paper presents FlightOps AI, a cutting-edge AIpowered system that integrates advanced natural language processing (NLP), deep neural networks (DNN

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Opatrny, Lucie, Stanley Shapiro, Marie-Jose Miron, Yury Monczak, and Susan R. Kahn. "A Canadian Multicenter Case-Control Study of the Risk of Venous Thrombosis in Car and Airplane Travelers." Blood 104, no. 11 (2004): 491. http://dx.doi.org/10.1182/blood.v104.11.491.491.

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Abstract Background: The potential association between venous thromboembolism (VTE) and travel, particularly air travel (“economy class syndrome”), has been the subject of extensive media coverage. While it is biologically plausible that prolonged travel is an independent risk factor for VTE, epidemiological data to date are conflicting, and confounders have rarely been accounted for. Aim: To determine whether there is a greater risk of exposure to travel in patients with confirmed DVT compared with patients in whom DVT is ruled out. To examine the influence of confounding variables on the rel

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Rudel'son, Lev E., Stanislaw N. Smorodskiy, and Victoriya A. Chernyshyova. "DYNAMIC DISCIPLINE OF PARALLEL SERVICE IN CONCEPT FLIGHT AND FLOW – INFORMATION FOR A COLLABORATIVE ENVIRONMENT." Civil Aviation High TECHNOLOGIES 21, no. 6 (2018): 79–91. http://dx.doi.org/10.26467/2079-0619-2018-21-6-79-91.

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The International Civil Aviation Organization (ICAO) has published documents regulating the measures aimed to increase the intensity of flights. It is supposed to introduce qualitatively new principles of air traffic management based on the technical achievements in the field of communication, navigation and surveillance. The existing dispatching service technology is based on the principle of regulating the flow of aircraft through the feedback mechanism. The plan of the airspace utilization is used as the model for the management process. Deviations in the measurand of the aircraft movement

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Prokhorov, M. A., A. Yu Tsvetkov, and A. A. Tolmachev. "Development of an automated system for deploying software for automated workstations of the spacecraft flight control center." Spacecrafts & Technologies 4, no. 1 (2020): 20–27. http://dx.doi.org/10.26732/j.st.2020.1.03.

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At present, the daily and combat activities of almost any army in the world are largely determined by the quality of information and space support. At the same time, the quality of support depends largely on the stability of the functioning of such unique technical facilities as spacecraft flight control centers. Based on the features of building new and upgrading existing flight control centers, their susceptibility to destructive information influences has been established. In this regard, the only way to guarantee the recovery of the information management system after information and techn

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Worth, Daniel. "A Method for Implementing Force-Limited Vibration Control." Journal of the IEST 40, no. 4 (1997): 34–41. http://dx.doi.org/10.17764/jiet.2.40.4.u00q32736352n282.

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NASA/Goddard Space Flight Center (NASA/GSFC) has implemented force-limited vibration control on a controller which can only accept one profile. The method uses a personal computer-based digital signal processing board to convert force and/or moment signals into what appears to be an acceleration signal to the controller. This technique allows test centers with older controllers to use the latest force-limited control techniques for random vibration testing. The paper describes the method, hardware, and test procedures used. An example from a test performed at NASA/GSFC is used as a guide.

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Tillman, K. D., and T. J. Ikeler. "Integrated Flight/Propulsion Control for Flight Critical Applications: A Propulsion System Perspective." Journal of Engineering for Gas Turbines and Power 114, no. 4 (1992): 755–62. http://dx.doi.org/10.1115/1.2906653.

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The Pratt & Whitney and Northrop companies together, under the Air Force Wright Research and Development Center (WRDC) sponsored Integrated Reliable Fault-Tolerant Control for Large Engines (INTERFACE II) Program [1, 2], designed and demonstrated an advanced real-time Integrated Flight and Propulsion Control (IFPC) system. This IFPC system was based upon the development of physically distinctive, functionally integrated, flight and propulsion controls that managed the Northrop twin engine, statically unstable, P700 airplane. Digital flight control and digital engine control hardware were c

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Moravszki, Csaba, József Rohács, and Gottfried Sachs. "Tunnel/Predictor Display for Trajectory Control in Hypersonic Flight." Periodica Polytechnica Transportation Engineering 47, no. 2 (2018): 157–65. http://dx.doi.org/10.3311/pptr.10342.

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A tunnel/predictor display which presents guidance information in a 3-dimensional format is considered for improving trajectory control in hypersonic flight. The displayed 3-dimensional information comprises a tunnel image and a predictor for indicating the aircraft position at a specified time ahead. The 3-dimensional guidance information is introduced to support the pilot in controlling the flight path. It is considered that piloting problems can be avoided which exist with conventional trajectory control techniques due to path-attitude decoupling. A predictor control law is constructed whic

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Meng, Lin, Shuo Wang, Ye Chen, and Yang Gao. "Emergency Flight Control Based on the Fan Wing." International Journal of Aerospace Engineering 2021 (November 28, 2021): 1–9. http://dx.doi.org/10.1155/2021/1216059.

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FanWing has been taken to the visual field because of its performance combination of fixed-wing aircraft and helicopter. Its flight mode is currently limited mainly by a remote control, while the research of automated flight control is on the rise. The fan wing could offer lift, thrust, and the additional pitch moment for longitudinal control. At the same time, the roll moment and the yaw moment can be generated by the differential rotation of the cross-flow fan to realize the lateral control. It provides the possibility for its emergency flight control when the aerodynamic control becomes ine

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Afanas’ev, V. A., G. L. Degtyarev, V. I. Kiselev, and A. S. Meshchanov. "Control of flight vehicles with the adjustable center of mass." Russian Aeronautics (Iz VUZ) 59, no. 3 (2016): 324–30. http://dx.doi.org/10.3103/s1068799816030053.

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Barret, Chris. "Flight Control Augmentors for Aft-Center-of-Gravity Launch Vehicles." Journal of Spacecraft and Rockets 34, no. 4 (1997): 487–95. http://dx.doi.org/10.2514/2.3238.

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Ivanova, G. A., and V. S. Khoroshilov. "On control of spacecraft orientation to the ground data acquisition station." Kosmičeskaâ tehnika. Raketnoe vooruženie 2023, no. 1 (2023): 41–47. http://dx.doi.org/10.33136/stma2023.01.041.

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The article dwells on the spacecraft attitude control to point the onboard antenna to the ground data acquisition station during the communication session. Antenna is fixed relative to the spacecraft body. Pur-pose of the antenna is to receive the flight task aboard the spacecraft and to downlink the telemetry infor-mation. When orbiting, the spacecraft position relative to the ground data acquisition station changes contin-uously. It is due to the diurnal rotation of the Earth, spacecraft orbital motion and angular motion of the spacecraft relative to the center of mass under the impact of th

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Nozawa, Taichi, Keita Nakamura, Ryosuke Katsuyama, et al. "The WiFly: Flapping-Wing Small Unmanned Aerial Vehicle with Center-of-Gravity Shift Mechanism." Journal of Robotics and Mechatronics 33, no. 2 (2021): 205–15. http://dx.doi.org/10.20965/jrm.2021.p0205.

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This paper describes the development of a flapping-wing unmanned aerial vehicle (UAV) named WiFly, which is equipped with a center-of-gravity (COG) shift mechanism. This mechanism allows seamless changes in the flight attitude between hovering and level flight by controlling the pitch angle. We implemented two types of feedback control systems in WiFly: PID control and reinforcement learning (shallow Q-learning) to stabilize the flight attitude. The controllability of WiFly is drastically improved by employing a double-motor drive system to independently control the flipping frequencies of the

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