Results 21 to 30 of about 47,989 (262)

Bit threads and the membrane theory of entanglement dynamics

open access: yesJournal of High Energy Physics, 2021
Recently, an effective membrane theory was proposed that describes the “hydrodynamic” regime of the entanglement dynamics for general chaotic systems. Motivated by the new bit threads formulation of holographic entanglement entropy, given in terms of a ...
Cesar A. Agón, Márk Mezei
doaj   +1 more source

Rationalized Algorithmic-Aided Shaping a Responsive Curvilinear Steel Bar Structure

open access: yesBuildings, 2019
The correlation of the architectural form and the structural system should be the basis for rational shaping. This paper presents algorithmic-aided shaping curvilinear steel bar structures for roofs, using modern digital tools, working in the environment
Jolanta Dzwierzynska
doaj   +1 more source

Mathematical Modelling and Multiresponse Optimization to Minimize Surface Roughness in Drilling Custom 450 Stainless Steel

open access: yesİmalat Teknolojileri ve Uygulamaları, 2023
In the present study, drilling tests were carried out on Custom 450 stainless steel workpieces. The influences of control factors (cutting speed-Vc, feed rate-f and drill bit geometry-D) on the drilled holes’ surface roughness (Ra) and on the size of adhering workpiece (AW) to the drill bit was examined.
Hüseyin GÖKÇE, İbrahim ÇİFTÇİ
openaire   +2 more sources

Reducing the Structural Mass of Large Direct Drive Wind Turbine Generators through Triply Periodic Minimal Surfaces Enabled by Hybrid Additive Manufacturing

open access: yesClean Technologies, 2021
As the power output of direct drive generators increases, they become prohibitively large with much of this material structural support. In this work, implicit modeling was coupled to finite element analysis through a genetic algorithm variant to ...
Austin C. Hayes, Gregory L. Whiting
doaj   +1 more source

Optimization of Machining Parameters to Minimize Cutting Forces and Surface Roughness in Micro-Milling of Mg13Sn Alloy

open access: yesMicromachines, 2023
This comprehensive study investigates the micro-milling of a Mg13Sn alloy, a material of considerable interest in various high-precision applications, such as biomedical implants. The main objective of the study was to explore the optimizations of variable feed per tooth (fz), cutting speed (Vc), and depth of cut (ap) parameters on the key outcomes of ...
Ali Ercetin   +4 more
openaire   +4 more sources

Recent Advances in Reconfigurable Electromagnetic Surfaces: Engineering Design, Full-Wave Analysis, and Large-Scale Optimization

open access: yesElectromagnetic Science
This paper presents a comprehensive review of recent advances in reconfigurable electromagnetic (EM) surfaces. The discussion is organized around three key aspects of reconfigurable EM surfaces: unit cell engineering design, full-wave numerical analysis,
Incheol (Aiden) Jung   +2 more
doaj   +1 more source

Algorithmic Improvements to Finding Approximately Neutral Surfaces

open access: yesJournal of Advances in Modeling Earth Systems, 2021
Interior oceanic motions occur predominantly along, rather than across, the neutral tangent plane. These planes do not link together to form well‐defined surfaces, so oceanographers use approximately neutral surfaces.
Geoffrey J. Stanley   +2 more
doaj   +1 more source

Model-based phase shift optimization of serrated end mills: Minimizing forces and surface location error

open access: yesMechanical Systems and Signal Processing, 2020
Abstract Serrated cutting tools emerged for higher chip removal in rough milling operations. In this paper, attention is simultaneously paid to cutting forces and surface quality. The mechanics of the milling system with serrated end-mills was studied using force and surface topography models.
G. Urbikain Pelayo, D. Olvera Trejo
openaire   +2 more sources

Optimization of parameters of heat exchangers vehicles [PDF]

open access: yesTransport Problems, 2014
The relevance of the topic due to the decision of problems of the economy of resources in heating systems of vehicles. To solve this problem we have developed an integrated method of research, which allows to solve tasks on optimization of parameters of ...
Andrei MELEKHIN, Aleksandr MELEKHIN
doaj  

Capillary assembly of colloidal particles on patterned surfaces

open access: yesNew Journal of Physics, 2020
Capillary attraction at the meniscus between tiny objects plays a crucial role in self-assembly processes. The shape of the meniscus governed by the Laplace equation devotes to a long-range attraction distinct to the DLVO defined forces.
Mo Zhou   +5 more
doaj   +1 more source

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