A hybrid structure to reduce electromagnetic interactions between two antennas using artificial materials

All ingredients of the previous chapters are combined in order to build a gauge invariant theory of the interactions among the elementary particles. We start with a unified model of the weak and the electromagnetic interactions. The gauge symmetry is spontaneously broken through the BEH mechanism and we identify the resulting BEH boson. Then we describe the theory known as quantum chromodynamics (QCD), a gauge theory of the strong interactions. We present the property of confinement which explains why the quarks and the gluons cannot be extracted out of the protons and neutrons to form free particles. The last section contains a comparison of the theoretical predictions based on this theory with the experimental results. The agreement between theory and experiment is spectacular.

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Seismic Response Analysis on a Steel-Concrete Hybrid Structure

Computational Structural Engineering ◽

10.1007/978-90-481-2822-8_26 ◽

2009 ◽

pp. 227-233 ◽

Cited By ~ 1

Author(s):

Zeliang Yao ◽

Guoliang Bai

Keyword(s):

Seismic Response ◽

Hybrid Structure ◽

Response Analysis ◽

Seismic Response Analysis

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Boosting hydrogen production via urea electrolysis on an amorphous nickel phosphide/graphene hybrid structure

Journal of Materials Science ◽

10.1007/s10853-021-06391-2 ◽

2021 ◽

Author(s):

Yun Tong ◽

Lu Chen ◽

Paul J. Dyson ◽

Zhaofu Fei

Keyword(s):

Hydrogen Production ◽

Hybrid Structure ◽

Nickel Phosphide ◽

Urea Electrolysis

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Hierarchical mechanical metamaterials built with scalable tristable elements for ternary logic operation and amplitude modulation

Science Advances ◽

10.1126/sciadv.abf1966 ◽

2021 ◽

Vol 7 (9) ◽

pp. eabf1966

Author(s):

Hang Zhang ◽

Jun Wu ◽

Daining Fang ◽

Yihui Zhang

Keyword(s):

Structural Diversity ◽

Cell Number ◽

Structural Elements ◽

Ternary Logic ◽

Stable States ◽

One Dimensional ◽

Logic Operation ◽

Artificial Materials ◽

Mechanical Metamaterials ◽

Unit Cells

Multistable mechanical metamaterials are artificial materials whose microarchitectures offer more than two different stable configurations. Existing multistable mechanical metamaterials mainly rely on origami/kirigami-inspired designs, snap-through instability, and microstructured soft mechanisms, with mostly bistable fundamental unit cells. Scalable, tristable structural elements that can be built up to form mechanical metamaterials with an extremely large number of programmable stable configurations remains illusive. Here, we harness the elastic tensile/compressive asymmetry of kirigami microstructures to design a class of scalable X-shaped tristable structures. Using these structure as building block elements, hierarchical mechanical metamaterials with one-dimensional (1D) cylindrical geometries, 2D square lattices, and 3D cubic/octahedral lattices are designed and demonstrated, with capabilities of torsional multistability or independent controlled multidirectional multistability. The number of stable states increases exponentially with the cell number of mechanical metamaterials. The versatile multistability and structural diversity allow demonstrative applications in mechanical ternary logic operators and amplitude modulators with unusual functionalities.

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