Indoor Drone 3-D Tracking Using Reflected Light From Floor Surfaces by Yusei Onishi, Hiroki Watanabe, Masanari Nakamura, Hiromichi Hashizume, Masanori Sugimoto

“…Experimental results gave an absolute error of 0.34 m at the 90th percentile for 3-D positioning when hovering and using a single-frame image. For a linear flight path, the error was 0.31 m. …”
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Variants of the Sliding Mode Control in Presence of External Disturbance for Quadrotor by Irfan Ahmad, Muwaida Liaquat, Fahad Mumtaz Malik, Hameed Ullah, Usman Ali

“…Control strategies have been implemented on quadrotor which is 6 Degree of Freedom (DOF) underactuated model and it is derived via Newton-Euler(NE) equations. …”
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From Stationary to Nonstationary UAVs: Deep-Learning-Based Method for Vehicle Speed Estimation by Muhammad Waqas Ahmed, Muhammad Adnan, Muhammad Ahmed, Davy Janssens, Geert Wets, Afzal Ahmed, Wim Ectors

“…Unmanned aerial vehicles (UAVs) and deep learning (DL) models are examples of such disruptive technologies with diverse industrial applications that are gaining traction. …”
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The Efficiency of Drone Propellers—A Relevant Step Towards Sustainability by Jaan Susi, Karl-Eerik Unt, Siim Heering

“…As various kinds of multirotor drones and small UAVs operate in hovering or nearly hovering modes, it is necessary to develop methods for determining and measuring the static aerodynamic efficiency of small-scale propellers. …”
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Level Crossing Rate and Average Fade Duration of Satellite-to-UAV FSO Channels by Hoang D. Le, Anh T. Pham

“…Specifically, the novel expressions of LCR and AFD for the low earth orbit (LEO) satellite-to-unmanned aerial vehicles (UAVs) laser links are derived in the presence of the generalized misalignments caused by the satellite vibration together with the UAV hovering, which is modeled by a four-parameter Beckmann distribution, and the atmospheric turbulence conditions. …”
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Conceptual Design of a Small Hybrid Unmanned Aircraft System by Umberto Papa, Salvatore Ponte, Giuseppe Del Core

“…Long flight duration is fundamental, especially with tasks that require hovering capability (e.g., river flow monitoring, earthquakes, devastated areas, city traffic monitoring, and archeological sites inspection). …”
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Finite Time Adaptive SMC for UAV Trajectory Tracking Under Unknown Disturbances and Actuators Constraints by Khelil Sidi Brahim, Ahmed El Hajjaji, Nadjiba Terki, David Lara Alabazares

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Design of stiffness-variable dielectric elastomer wing based on seagull characteristics and its application in avian flight bionics by Haihao Ci, Zhan-Sheng Guo

“…The evolution of the DEW’s deformation is modeled based on the differential equation describing the bending curve of a DE cantilever beam. …”
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The Effects of Strata Orientation and Water Presence on the Stability of Engineered Slopes Using DIPS and FLACSlope: A Case Study of Tubatse and Fetakgomo Engineered Road Slopes by Fumani Nkanyane, Fhatuwani Sengani, Maropene Tebello Dinah Rapholo, Krzysztof Skrzypkowski, Krzysztof Zagórski, Anna Zagórska, Tomasz Rokita

“…Kinematic analysis, incorporating DIPS modeling and toppling charts, identified toppling as the most likely failure mode, with a 90% susceptibility rate, followed by planar and wedge failures at 6% and less than 5%, respectively. …”
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Composite Power Management Strategy for Hybrid Powered Compound-Wing Aircraft in Level Flight by Siqi An, Xu Peng, Yuantao Gan, Jingyu Yang, Guofei Xiang, Songyi Dian

“…To obtain the desired features and design the regularity strategy of the power system, linear and nonlinear models are established based on the configuration of an electro-gasoline series hybrid power system installed in the proposed aircraft, with mathematical modelling of key components and units. …”
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An Adaptive Neural Network Fuzzy Sliding Mode Controller for Tracking Control of Deep-Sea Mining Vehicles by Shidong Wang, Zida Shan, Jialuan Xiao, Junjun Cao, He Zhang, Nan Sun

“…In contrast, ROV-like alternatives, such as the hovering mining vehicle, or HMV, offer substantial improvement in this regard and are deemed to be a viable way forward. …”
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The Evaluation of Profitability, Corporate Social Responsibility, and Financial Risk in Asset Management Companies in Iran by Hanieh Hekmat, Farnoosh Keshavarz mirza mohammadi

“…Our observation showed that the average debt ratio in the asset management industry hovered around 32%, of which 28% belonged to short-term debts. …”
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Main topics in assisted reproductive market: A scoping review. by Janaina Ferreira Aderaldo, Beatriz Helena Dantas Rodrigues de Albuquerque, Maryana Thalyta Ferreira Câmara de Oliveira, Mychelle de Medeiros Garcia Torres, Daniel Carlos Ferreira Lanza

“…In this context, the global assisted reproductive technologies (ART) market shows significant expansion, hovering around USD 26 billion in 2019 and is expected to reach USD 45 billion by 2025.…”
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