Results 21 to 30 of about 3,488,035 (299)

The configurations (13_3)

The Art of Discrete and Applied Mathematics, 2021
Summary: There are 2036 configurations \((13_3)\). Here we establish that all of them are geometric; moreover, all have rational coordinatizations in the plane. This supports Grünbaum's conjecture that a geometric \((n_3)\) configuration always has a rational coordinatization.
openaire   +2 more sources

Aerodynamic and wind energy harvesting integrative design for UAVs

Kongqi donglixue xuebao
Dynamic soaring, a special flight mode that enables unpowered long-distance flight by utilizing horizontal wind gradients, holds great potential for enhancing the range and endurance of unmanned aerial vehicles (UAVs).
Wei Wang, Weigang An, Bifeng Song, Wenqing Yang, Yang Luo   +4 more
doaj   +1 more source

Drag Reduction Research on Fusion Winglet

Hangkong gongcheng jinzhan, 2018
Effectively decreasing induced drag is of important significance for the aircraft to reduce the fuel consumption and increase the flight range. Numerical simulation with CFD methods are carried out to obtain the aerodynamic characteristics, especially ...
Ma Yumin, Wei Jianlong
doaj   +1 more source

Configuration of points and strings [PDF]

, 2011
Let $X$ be a smooth projective variety of dimension $n\geq 2$. It is shown that a finite configuration of points on $X$ subject to certain geometric conditions possesses rich inner structure.
Bondal, Griffiths, Hartshorne, Igor Reider, Kontsevich, Okonek, Reider, Reider, Simpson, Weil   +9 more
core   +3 more sources

Weighted Configuration Model

, 2005
The configuration model is one of the most successful models for generating uncorrelated random networks. We analyze its behavior when the expected degree sequence follows a power law with exponent smaller than two.
Boguna, M., Serrano, M. A.
core   +1 more source

Enhancing surrogate-based aerodynamic shape optimization via dataset-independent generative modelling and dimensionality reduction

Engineering Applications of Computational Fluid Mechanics
Surrogate-based optimization (SBO) has emerged as a critical tool for efficient global optimization of aircraft aerodynamic configurations driven by expensive computational fluid dynamics (CFD) simulations.
Yang Zhang, Zhong-Hua Han, Ke-Shi Zhang, Chen-Zhou Xu, Wen-Ping Song   +4 more
doaj   +1 more source

Heat transfer and thermal debonding analysis of honeycomb sandwich panels under laser irradiation [PDF]

AIP Advances
Aerospace structures are increasingly exposed to laser irradiation, and understanding their thermomechanical response is essential for maintaining structural integrity.
Pai Liu, Bin Li, Chen Peng, Jiawei Wang, Wen Cai, Minzhao Zhang   +5 more
doaj   +1 more source

Configurations in fractals [PDF]

Rocky Mountain Journal of Mathematics, 2021
We define the manifold of configurations to be the quotient set of $k$ points in Euclidean space identified under congruence, and prove that compact subsets of $\mathbb{R}^d, d \geq 2$, of large Hausdorff dimension have a non-null set of configurations in them.
openaire   +2 more sources

OriLoc: Unlimited-FoV and Orientation-Free Cross-View Geolocalization

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Cross-view image-based geolocalization enables accurate, drift-free navigation without external positioning signals, crucial for UAV delivery and disaster relief.
Boni Hu, Haowei Li, Shuhui Bu, Lin Chen, Pengcheng Han   +4 more
doaj   +1 more source

Study on The Multi-Path Management and Control Strategy of Total Life Cycle Cost of The Aviation Equipment

Hangkong gongcheng jinzhan, 2019
As a complex product of high and new technology, the economical design of aviation equipment has been paid more and more attention.How to control and reduce the total life cycle cost as much as possible is the focus of aviation equipment research under ...
Wang Zeyu, Ai Junqiang
doaj   +1 more source