Results 71 to 80 of about 228,651 (326)
The Terwilliger Algebra of the Incidence Graphs of Johnson Geometry [PDF]
The Electronic Journal of Combinatorics, 2013 In 2007, Levstein and Maldonado computed the Terwilliger algebra of the Johnson graph $J(n,m)$ when $3m\leq n$. It is well known that the halved graphs of the incidence graph $J(n,m,m+1)$ of Johnson geometry are Johnson graphs. In this paper, we determine the Terwilliger algebra of $J(n,m,m+1)$ when $3m\leq n$, give two bases of this algebra, and ...
Qian Kong, Kaishun Wang, Benjian Lv
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Heterostructure‐Specific Toughening Mechanisms in Metallic Laminates
Advanced Engineering Materials, EarlyView.This study highlights how various aspects of the heterostructural design of metallic laminates can be specifically tailored to achieve improved fracture resistance for damage‐tolerant designs of cyclically stressed components. Based on results from in situ fatigue crack growth tests, a comprehensive overview of the formation and development of ...
Philip Manuel Pohl +5 more
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Nanoscale Research Letters, 2020 An ultrathin and flexible metamaterial absorber (MA) with triple absorption peaks is presented in this paper. The proposed absorber has been designed in such a way that three absorption peaks are located at 8.5, 13.5, and 17 GHz (X and Ku bands) with ...
Guangsheng Deng +7 more
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, 2013 In this paper, the characteristic matrix method is employed to theoretically investigate the propagation of electromagnetic waves through one-dimensional defective lossy photonic crystals (PCs) composed of negative index materials (NIMs) and positive ...
Aghajamali, Alireza +3 more
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Direct Recycling of Cold Work Tool Steel Swarf into New Cutting Disks via Field‐Assisted Sintering
Advanced Engineering Materials, EarlyView.Through a sintering method known as field‐assisted sintering technology/spark plasma sintering, cold work tool steel swarf can be directly recycled into new cutting disks. This method is capable of densifying the unconventional powder morphology of swarf, and it can also seal grinding contaminants, such as Al2O3, into the steel matrix.
Monica Keszler +4 more
wiley +1 more source
The flecnode polynomial: a central object in incidence geometry [PDF]
, 2014 We give a brief exposition of the proof of the Cayley-Salmon theorem and its recent role in incidence geometry. Even when we don't use the properties of ruled surfaces explicitly, the regime in which we have interesting results in point-line incidence ...
Katz, Nets Hawk
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Incircular nets and confocal conics
, 2017 We consider congruences of straight lines in a plane with the combinatorics of the square grid, with all elementary quadrilaterals possessing an incircle. It is shown that all the vertices of such nets (we call them incircular or IC-nets) lie on confocal
Akopyan, Arseniy, Bobenko, Alexander I.
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Advanced Functional Materials, EarlyView.This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun +7 more
wiley +1 more source
Long-Term Performance of Mega-Nourishments: Role of Directional Wave Climate and Initial Geometry
Journal of Marine Science and Engineering, 2020 Concentrated mega-nourishments, built as coastal protection measures for decadal time scales, are intended to diffuse, that is to erode and to supply sand to the nearby beaches and dunes by profiting of the natural drivers.
Jaime Arriaga +4 more
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Unipotent representations of Lie incidence geometries [PDF]
Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, 2014 If a geometry $ $ is isomorphic to the residue of a point $A$ of a shadow geometry of a spherical building $ $, a representation $\varepsilon_ ^A$ of $ $ can be given in the unipotent radical $U_{A^*}$ of the stabilizer in $\mathrm{Aut}( )$ of a flag $A^*$ of $ $ opposite to $A$, every element of $ $ being mapped onto a suitable subgroup of $U_ ...
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