Results 11 to 20 of about 815,076 (298)

A Robust and Accurate Landing Methodology for Drones on Moving Targets

open access: yesDrones, 2022
This paper presents a framework for performing autonomous precise landing of unmanned aerial vehicles (UAVs) on dynamic targets. The main goal of this work is to design the methodology and the controlling algorithms that will allow multi-rotor drones to ...
Assaf Keller, Boaz Ben-Moshe
doaj   +1 more source

Real-Time Stereo-Based Ocean Surface Mapping for Robotic Floating Platforms: Concept and Methodology

open access: yesSensors, 2023
Consider the case of a small, unmanned boat that is performing an autonomous mission. Naturally, such a platform might need to approximate the ocean surface of its surroundings in real-time.
Or Greenberg, Boaz Ben-Moshe
doaj   +1 more source

Using Feedback Strategies in Simulated Annealing with Crystallization Heuristic and Applications

open access: yesApplied Sciences, 2021
This paper represents how typical advanced engineering design can be structured using a set of parameters and objective functions corresponding to the nature of the problem. The set of parameters can be in different types, including integer, real, cyclic,
Guilherme C. Duran   +7 more
doaj   +1 more source

Water Content Monitoring in Water-in-Crude-Oil Emulsions Using an Ultrasonic Multiple-Backscattering Sensor

open access: yesSensors, 2021
This work shows the application of an ultrasonic multiple-scattering sensor for monitoring water-in-petroleum emulsions. The sensor consists of a commercial ultrasonic transducer with an array of cylindrical scatterers placed in the near field.
Alberto L. Durán   +5 more
doaj   +1 more source

Dimensional Tolerances in Mechanical Assemblies: A Cost-Based Optimization Approach

open access: yesApplied Sciences, 2023
There is a widely accepted consensus that component manufacturing precision is directly correlated with improved functional performance. However, this increase in precision comes at the expense of higher manufacturing costs, resulting in a trade-off ...
Eduardo Umaras   +3 more
doaj   +1 more source

Robust Algorithm Software for NACA 4-Digit Airfoil Shape Optimization Using the Adjoint Method

open access: yesApplied Sciences, 2023
Optimizing the aerodynamic shape of an airfoil is a critical concern in the aviation industry. The introduction of flexible airfoils has allowed the shape of the airfoil to vary, depending on the flight conditions. Therefore, in this study, we propose an
Naser Tanabi   +3 more
doaj   +1 more source

Power Line Charging Mechanism for Drones

open access: yesDrones, 2021
The use of multirotor drones has increased dramatically in the last decade. These days, quadcopters and Vertical Takeoff and Landing (VTOL) drones can be found in many applications such as search and rescue, inspection, commercial photography ...
Boaz Ben-Moshe
doaj   +1 more source

Improving the Gridshells’ Regularity by Using Evolutionary Techniques

open access: yesMathematics, 2021
Designing and optimizing gridshell structures have been very attractive problems in the last decades. In this work, two indexes are introduced as “length ratio” and “shape ratio” to measure the regularity of a gridshell and are compared to the existing ...
Marjan Goodarzi   +2 more
doaj   +1 more source

Processing the overlay of geometry segments in solving hydrophysics problems by the finite difference method [PDF]

open access: yesE3S Web of Conferences, 2022
The article deals with issues related to increasing the efficiency of working with data on the geometry of the computational domain when solving hydrophysics problems using the finite difference method.
Litvinov Vladimir   +2 more
doaj   +1 more source

Computational geometry

open access: yesJournal of Japan Society for Fuzzy Theory and Systems, 2001
A compendium of thirty previously published open problems in computational geometry is ...
Isabel M. Beichl   +3 more
  +5 more sources

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