Results 21 to 30 of about 3,449,680 (270)

More on Meta-Stable Brane Configuration [PDF]

open access: yes, 2007
We describe the intersecting brane configuration of type IIA string theory corresponding to the meta-stable nonsupersymmetric vacua in four dimensional N=1 supersymmetric SU(N_c) gauge theory with an antisymmetric flavor, a conjugate symmetric flavor ...
Ahn C   +12 more
core   +3 more sources

Research on Aerodynamic Performance Simulation and Flow Control on the Submerged Inlet by Considering the Influence Propeller Slipstream Flow

open access: yesHangkong gongcheng jinzhan, 2020
It is of great significance to investigate the mechanism of the propeller slipstream influence on the aerodynamic performance of the submerged inlet to keep the stability of the engine.
WANG Limin
doaj   +1 more source

Aerodynamic and wind energy harvesting integrative design for UAVs

open access: yesKongqi 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   +4 more
doaj   +1 more source

Drag Reduction Research on Fusion Winglet

open access: yesHangkong 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

Star configuration points and plane curves [PDF]

open access: yes, 2011
2siLet ℓ1,...,ℓ1 be l lines in ℙ2 such that no three lines meet in a point. Let X(l) be the set of points {ℓi ∩ ℓj {divides} 1 ≤ i < j ≤ l} ⊆ ℙ2. We call X(l) a star configuration.
Carlini, Enrico, Van Tuyl, A.
core   +2 more sources

Extremal Cylinder Configurations II: Configuration O6 [PDF]

open access: yesExperimental Mathematics, 2019
We study the octahedral configurations $O_6$ of six equal cylinders touching the unit sphere. We show that the configuration $O_6$ is a local sharp maximum of the distance function. Thus it is not unlockable and, moreover, rigid.
Ogievetsky, Oleg, Shlosman, Senya
openaire   +2 more sources

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

open access: yesHangkong 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

WS-ARC service configuration manual [PDF]

open access: yes, 2013
The central component of ...
Ould-Saada, Farid
core   +1 more source

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

open access: yesEngineering 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   +4 more
doaj   +1 more source

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

open access: yesAIP Advances
Aerospace structures are increasingly exposed to laser irradiation, and understanding their thermomechanical response is essential for maintaining structural integrity.
Pai Liu   +5 more
doaj   +1 more source

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