Results 81 to 90 of about 211,330 (300)

A design procedure for the weight optimization of straight finned radiators [PDF]

, 1966
Design technique evaluates optimum weight of space radiator consisting of finned, right circular ...
Burian, R. J., Harris, D. W., Ketchman, J. J.   +2 more
core   +2 more sources

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

Advanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker, Thierry Roland, Damien Favier, Antoine Egele, Michael Heymann, Cosima Stubenrauch   +5 more
wiley   +1 more source

Simulation of rotating drum experiments using non-circular particles

, 1995
We investigate the flow of granular material in a rotating cylinder numerically using molecular dynamics in two dimensions. The particles are described by a new model which allows to simulate geometrically complicated shaped grains.
Allen, Barker, Baumann, Baumann, Baumann, Bretz, Buchholtz, Cundall, Gallas, Gear, Haff, Hans-Jürgen Tillemans, Hashimoto, Herrmann, Hertz, Hogue, Jullien, Mustoe, Pöschel, Pöschel, Rajchenbach, Ristow, Rolf, Rothkegel, Stronge, Thorsten Pöschel, Tillemans, Timoshenko, Visscher, Volkhard Buchholtz, Walton, Woodle   +31 more
core   +2 more sources

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Analytical calculation of the solid angle defined by a cylindrical detector and a point cosine source with orthogonal axes

, 2003
We derive analytical expressions for the solid angle subtended by a right circular cylinder at a point source with cosine angular distribution in the case where the source and the cylinder axes are mutually orthogonal.Comment: 19 pages, 13 figures, Latex.
Gardner, Gillespie, Green, Hubbell, Jaffey, James, M.J. Prata, Masket, Prata, Prata, Verghese   +10 more
core   +2 more sources

Three‐dimensional Antimony Sulfide Based Flat Optics

Advanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang, Uwe Hübner, Anne Gärtner, Tao Chen, Joseph Köbel, Franka Jahn, Daniel Repp, Abhrodeep Dey, Henrik Schneidwind, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Matthias Zeisberger, Tanveer Ahmed Shaik, Astrid Bingel, Markus A. Schmidt, Jer‐Shing Huang, Ulf Peschel, Volker Deckert   +18 more
wiley   +1 more source

Flow control behind a circular cylinder via a porous cylinder in deep water

EPJ Web of Conferences, 2013
In this present work, the effects of surrounding outer porous cylinder on vortex structure downstream of a circular inner cylinder are investigated experimentally in deep water flow. The porosity of outer cylinder were selected as β = 0.4, 0.5, 0.6, 0.65,
Akilli H., Fırat E., Gozmen B., Sahin B.   +3 more
doaj   +1 more source

Nonlinear flexural vibrations of thin-walled circular cylinders [PDF]

Nonlinear flexural vibration analysis using Galerkin method in thin-walled circular ...
Evensen, D. A.
core   +1 more source

A reference solution of the flow over a circular cylinder at Re=40

, 2013
The classical problem of the flow over a circular cylinder at Reynolds number 40 is considered using an accurate pseudo-spectral code. A new set of boundary conditions is proposed to improve the representation of the infinite flow domain, especially in ...
Biau, Damien, Gautier, Rémi, Lamballais, Eric   +2 more
core   +4 more sources

Roll‐to‐Roll Mechanical Exfoliation for Large‐Area van der Waals Films with Preserved Crystallographic Alignment

Advanced Functional Materials, EarlyView.
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo, Francisco Fernandez‐Canizares, Yigit Sozen, Thomas Pucher, Pedro L Alcázar Ruano, Carmen Munuera, Ryo Ishikawa, Naoya Shibata, María Varela, Der‐Yuh Lin, Bing Wu, Jorge Quereda, Zdenek Sofer, Gabriel Sánchez‐Santolino, Andres Castellanos‐Gomez   +14 more
wiley   +1 more source