Results 111 to 120 of about 22,474 (244)

Steady and unsteady multiblock hovering rotor simulations

, 2003
A multiblock upwind Euler solver is presented and applied to multibladed lifting hovering rotor ¯ow. Hovering rotor ¯ows can be simulated as a steady case in a blade-®xed rotating coordinate system.
Allen, CB
core   +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

Hovering information – self-organizing information that finds its own storage

, 2009
Hovering information is a mobile computing paradigm where pieces of self-organizing information are responsible to find their own storage on top of a dynamic set of mobile devices.
Villalba Castro, A.A., di Marzo Serugendo, Giovanna, Konstantas, D., Alfredo A. Villalba Castro, Dimitri Konstantas, Villalba Castro, Alfredo Alejandro, Giovanna Di Marzo Serugendo, Konstantas, Dimitri   +7 more
core   +1 more source

Robotics for Crop Pollination: Recent Advances and Future Direction

Journal of Field Robotics, EarlyView.
ABSTRACT There is great interest in alternative pollination strategies for crop production in the face of climate change and perennial threats to the traditional pollination mechanisms. This review explores the potential of robotic pollination as a promising solution to these challenges affecting crop fertilization, agricultural sustainability, and ...
Ranjan Sapkota, Matthew D. Whiting, Dawood Ahmed, Manoj Karkee   +3 more
wiley   +1 more source

Hover Flight Improvement of a Quadrotor Unmanned Aerial Vehicle Using PID Controllers with an Integral Effect Based on the Riemann–Liouville Fractional-Order Operator: A Deterministic Approach

Fractal and Fractional
The hovering flight of a quadrotor Unmanned Aerial Vehicle (UAV) refers to maintaining the aircraft in a fixed position in the air, without lateral, vertical, or rotational movements, using only the vehicle’s control systems to maintain proper balance in
Gustavo Delgado-Reyes, Jorge Salvador Valdez-Martínez, Pedro Guevara-López, Miguel Angel Hernández-Pérez   +3 more
doaj   +1 more source

UAV‐Based Precision Seed Dropping for Automated Reforestation

Journal of Field Robotics, EarlyView.
ABSTRACT Wildfires and deforestation pose significant threats to forest ecosystems, motivating scalable methods for reforestation beyond labor‐intensive cultivation of native forest seedlings in nurseries. To enable large‐scale direct seeding of native species, this paper presents the design, analysis, and field evaluation of a UAV‐based seed‐dropping ...
Qi Rui Lee, Henrik Hesse, Khuanphirom Naruangsri, Worayut Takaew, Stephen Elliott, Dinesh Bhatia   +5 more
wiley   +1 more source

Ground‐based robotic remote sensing for standardized biodiversity monitoring in coastal habitats

Remote Sensing in Ecology and Conservation, EarlyView.
Illustrated workflow of the proposed citizen‐to‐robot monitoring pipeline: (i) expert‐validated citizen observations are translated into AI models, (ii) deployed on a ground‐based robotic platform for proximal sensing of coastal dune habitats, (iii) enabling standardized detection of ecological targets (e.g., Pancratium maritimum & Brithys crini), and (
Giovanni Di Lorenzo, Simonetta Bagella, Micaela del Valle Rasino, Maria Laura Carranza, Manolo Garabini, Franco Angelini   +5 more
wiley   +1 more source

Energetics of a hovering hummingbird

, 2009
Hovering, an extremely impressive aerial art, is a very energetically expensive type of flight. The largest animals capable of performing the feat, hummingbirds are presumed to have one of the biggest energy outputs for their size of all avian creatures.
Mueller, William
core   +1 more source

Waste Management Strategies for Environmental Wellbeing: Exploring the Roles of Environmental Regulations and Green Finance in Reducing Carbon Intensity

Sustainable Development, EarlyView.
ABSTRACT Rising industrial activity, urban expansion, and economic growth continue to intensify waste generation and greenhouse gas emissions, placing growing pressure on environmental sustainability. In this setting, reducing the carbon intensity of electricity generation has become a key policy priority, particularly in advanced economies pursuing ...
Abdullah Emre Caglar, Mehmet Akif Destek, Ismail Demirdag, Muge Manga, Sercan Aydın   +4 more
wiley   +1 more source

Balancing allocative and dynamic efficiency with redundant R&D allocation: The role of organizational proximity and centralization

Strategic Management Journal, EarlyView.
Abstract Research Summary Resource‐based‐view scholars have mainly examined two resource allocation approaches for competitive advantage in multiunit firms: resource sharing and resource redeployment. These approaches emphasize allocative efficiency—the optimal allocation of resources to maximize their current value. In technology‐intensive industries,
Vivek Tandon, Anand Nandkumar, Ronak Mogra, Kannan Srikanth   +3 more
wiley   +1 more source