Results 11 to 20 of about 814,982 (250)

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

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

Centerpoint theorems for wedges [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
General
Jeff Erickson, Ferran Hurtado, Pat Morin
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

Single-Player and Two-Player Buttons & Scissors Games [PDF]

open access: yes, 2016
We study the computational complexity of the Buttons \& Scissors game and obtain sharp thresholds with respect to several parameters. Specifically we show that the game is NP-complete for $C = 2$ colors but polytime solvable for $C = 1$.
Burke, Kyle   +15 more
core   +3 more sources

Computing Euclidean Steiner trees over segments

open access: yesEURO Journal on Computational Optimization, 2020
In the classical Euclidean Steiner minimum tree (SMT) problem, we are given a set of points in the Euclidean plane and we are supposed to find the minimum length tree that connects all these points, allowing the addition of arbitrary additional points ...
Ernst Althaus   +2 more
doaj   +1 more source

Visualizing a Cubic Linkage through the Use of CAS and DGS

open access: yesMathematics, 2022
Our goal is to discuss the different issues that arise when attempting to visualize a joints-and-bars cube through GeoGebra, a widespread program that combines dynamic geometry (DGS) and computer algebra systems (CAS). As is standard in the DGS framework,
Tomás Recio   +3 more
doaj   +1 more source

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