Results 111 to 120 of about 14,198 (266)

Nonlinear Receding‐Horizon Differential Game for Drone Racing Along a Three‐Dimensional Path

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Drone racing requires high‐speed navigation through three‐dimensional paths, posing significant challenges in control engineering. Existing control methods lack a feedback control framework that simultaneously addresses nonlinear drone dynamics and multi‐agent competitive interactions, such as overtaking or obstructing opponents.
Kijin Sung, Kenta Hoshino, Akihiko Honda, Takeya Shima, Toshiyuki Ohtsuka   +4 more
wiley   +1 more source

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, EarlyView.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

Enhancing Drone Light Shows Performances: Optimal Allocation and Trajectories for Swarm Drone Formations

Journal of Field Robotics, EarlyView.
ABSTRACT Drone light shows (DLShows) represent a rapidly growing application of swarm robotics, creating captivating aerial displays through the synchronized flight of hundreds or thousands of unmanned aerial vehicles (UAVs) as environmentally friendly and reusable alternatives to traditional pyrotechnics.
Yunes Alqudsi
wiley   +1 more source

Multifunctional Nanodiamond Conjugate With a Tumor‐Specific EGFR‐Targeting Peptide and Photoactivated CO Release for Improved Therapeutic Efficacy in Head and Neck Cancers

Small, EarlyView.
A multifunctional nanodiamond conjugate carrying a blue light‐activated carbon monoxide‐releasing molecule and an EGFR‐targeting peptide enables efficient, targeted CO delivery in vitro and in vivo. Upon photoactivation, the particles induce cancer‐specific cytotoxicity and significantly suppress tumor growth and lymph node metastasis in a head and ...
Harsh Nitin Dongre, Elisabeth Mayerhoefer, Julia Puck, Himalaya Parajuli, Lorena Larios Salazar, Paul Johan Høl, Ridhima Das, Patrick Roth, Christian Arvei Moen, Ulrich Schatzschneider, Line Bjørge, Daniela Elena Costea, Anke Krueger   +12 more
wiley   +1 more source

Self‐Organized Vascularized Human Liver Spheroids: Serum‐Free Culture Conditions and Use as Tissue Building Blocks

Small, EarlyView.
This approach addresses a major challenge in tissue engineering: creating larger, vascularized tissues. Microvascular networks in liver spheroids are developed through self‐organization mediated by mesenchymal stem cells. These spheroids are maintained in serum‐reduced or serum‐free medium and serve as building blocks to form planar tissue layers ...
Alina Filatova, Olivera Valentirović Dann, Jennifer B. Schwarzkopf, Tengku I. Maulana, Jamina S. Gerhardus, Leon Kaysan, Katja Meier, Andreas Blaeser, Beate K. Straub, Holger Gerhardt, Ulrike A. Nuber   +10 more
wiley   +1 more source

Optimization of Flexible Rotor for Ultrasonic Motor Based on Response Surface and Genetic Algorithm. [PDF]

Micromachines (Basel)
Chen B, Yang J, Tang H, Wu Y, Zhang H.
europepmc   +1 more source

Characterization of the Pore Environments in Covalent Organic Frameworks by Dynamic Spin Probe Exchange

Small, EarlyView.
Covalent organic frameworks (COFs) with alkyl or triethylene glycol pore linings are probed with water‐dissolved nitroxide radicals using CW EPR spectroscopy. Adsorption affinity, local polarity, and radical concentration inside the pores are quantified, revealing hydrogen bonding, dipolar, and π‐π interactions that govern guest binding, which ...
Sebastian Michler, Simona Bassoli, Luisa Voigt, Makhily Diaby, Dariush Hinderberger, Frederik Haase   +5 more
wiley   +1 more source

Dynamic analysis of misalignment modelling with flexible damped coupling in rotor shaft system using classical approach. [PDF]

Sci Rep
Malgi H, Chandraker S, Aggarwal M, Dutt JK, Mehar K.   +4 more
europepmc   +1 more source

A flexible rotor on flexible supports: modeling & experiments

, 2009
In this study, a flexible rotor with variable support stiffness has been analyzed. Simple support models consisting of mass, spring systems are extracted from modal analysis of the isolated support and by applying static loads to the finite element model of the supports.
Dikmen, E., van der Hoogt, Peter, de Boer, Andries, Aarts, Ronald G.K.M., Jonker, Jan B.   +4 more
openaire   +1 more source

Monitoring wildlife using long‐endurance solar‐electric UAVs

Wildlife Biology, EarlyView.
This report discusses the effectiveness of using small solar‐electric UAV (uncrewed aerial vehicles) for aerial wildlife monitoring. We review four years of aerial wildlife monitoring missions using a 5.5‐m wingspan, solar‐electric UAV that was equipped with a gimballed IR/RGB camera.
Götz Bramesfeld, William Bissonnette, Maya Rahaman‐Noronha, Kanwar Johal   +3 more
wiley   +1 more source