Results 31 to 40 of about 256,201 (209)

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Classical (“ontological”) dual states in quantum theory and the minimal group representation Hilbert space

APL Quantum
We investigate the classical aspects of quantum theory and under which description quantum theory does appear classical. Although such descriptions or variables are known as “ontological” or “hidden,” they are not hidden at all but are dual classical ...
Diego J. Cirilo-Lombardo, Norma G. Sanchez   +1 more
doaj   +1 more source

Entropy of random coverings and 4D quantum gravity

, 1994
We discuss the counting of minimal geodesic ball coverings of $n$-dimensional riemannian manifolds of bounded geometry, fixed Euler characteristic and Reidemeister torsion in a given representation of the fundamental group.
A. Marzuoli, Agishtein, Agishtein, Ambjørn, Ambjørn, Ambjørn, Anbjørn, Bessis, Bessis, Bollobás, Bott, Boulatov, Brézin, Brügmann, Burago, Burago, C. Bartocci, Carfora, Carfora, Carfora, Carfora, Catterall, Cheeger, Cheeger, Cohen, David, David, Doubrovin, Durhuus, Fernandez, Ferry, Ferry, Fried, Fröhlich, Fröhlich, Gallot, Goldman, Goldman, Greene, Gromov, Gromov, Grove, Grove, Grove, Grove, Hamber, Harer, Hitchin, Kazakov, Knizhnik, Kontsevitch, M. Carfora, Martellini, Martellini, Milnor, Morrison, Penner, Perel'man, Petersen, Petersen, Ray, Ray, Regge, Rourke, Schwarz, Tutte, U. Bruzzo, Varsted, Walker, Weingarten, Williams, Witten, Witten, Witten, Zhu, Zhu   +75 more
core   +2 more sources

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Cohomology of preimages with local coefficients

, 2006
Let M,N and B\subset N be compact smooth manifolds of dimensions n+k,n and \ell, respectively. Given a map f from M to N, we give homological conditions under which g^{-1}(B) has nontrivial cohomology (with local coefficients) for any map g homotopic to ...
Daccach, Daciberg Lima Gonçalves, Dobreńko, Dold, Gottlieb, Gottlieb, Peter Wong, Samelson, Spanier, Whitehead, Wyler   +10 more
core   +2 more sources

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Gauge Group and Topology Change

, 2011
The purpose of this study is to examine the effect of topology change in the initial universe. In this study, the concept of $G$-cobordism is introduced to argue about the topology change of the manifold on which a transformation group acts.
Ambjørn J., Itô K., IZUMI TANAKA, Loll R., Petrie T., SEIJI NAGAMI, Spanier E. H., Uchida F.   +7 more
core   +1 more source