Chaos in three-dimensional hybrid systems and design of chaos generators

2012 ◽  
Vol 69 (4) ◽  
pp. 1915-1927 ◽  
Author(s):  
Songmei Huan ◽  
Qingdu Li ◽  
Xiao-Song Yang
Keyword(s):  
Hybrid Systems ◽  
Three Dimensional

scholarly journals Dimensional effects on the density of states in systems with quasi-relativistic dispersion relations and potential wells

2016 ◽  
Vol 94 (8) ◽  
pp. 773-779 ◽  
Author(s):  
A. Pokraka ◽  
R. Dick
Keyword(s):  
Hybrid Systems ◽  
Density Of States ◽  
Three Dimensional ◽  
Dispersion Relations ◽  
Potential Wells ◽  
Dimensional Effects ◽  
Densities Of States ◽  
Relativistic Dispersion ◽  
Low Dimensional

Motivated by the recent discoveries of materials with quasi-relativistic dispersion relations, we determine densities of states in materials with low dimensional substructures and relativistic dispersion relations. We find that these dimensionally hybrid systems yield quasi-relativistic densities of states that are a superposition of the corresponding two- and three-dimensional densities of states.

scholarly journals Approximate Completed Trace Equivalence of Three Dimensional t-Model Nonlinear Algebraic Hybrid Systems

2013 ◽  
Vol 7 (5) ◽  
pp. 1693-1697 ◽  
Author(s):  
Hao Yang ◽  
Jinzhao Wu ◽  
Zhiwei Zhang ◽  
Yang Liu
Keyword(s):  
Hybrid Systems ◽  
Three Dimensional ◽  
Trace Equivalence

scholarly journals Spatially-Controllable Hot Spots for Plasmon-Enhanced Second-Harmonic Generation in AgNP-ZnO Nanocavity Arrays

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1012
Author(s):  
Shaoxin Shen ◽  
Min Gao ◽  
Rongcheng Ban ◽  
Huiyu Chen ◽  
Xiangjie Wang ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Hybrid Systems ◽  
Harmonic Generation ◽  
Hot Spots ◽  
Second Harmonic ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Excitation Energies ◽  
High Loss ◽  
Relative Contribution

Plasmon-enhanced second-harmonic generation (PESHG) based on hybrid metal-dielectric nanostructures have extraordinary importance for developing efficient nanoscale nonlinear sources, which pave the way for new applications in photonic circuitry, quantum optics, and biosensors. However, the relatively high loss of excitation energies and the low spatial overlapping between the locally enhanced electromagnetic field and nonlinear materials still limit the promotion of nonlinear conversion performances in such hybrid systems. Here, we design and fabricate an array of silver nanoparticle-ZnO (AgNP-ZnO) nanocavities to serve as an efficient PESHG platform. The geometry of AgNP-ZnO nanocavity arrays provides a way to flexibly modulate hot spots in three-dimensional space, and to achieve a good mutual overlap of hot spots and ZnO material layers for realizing efficient SH photon generation originating from ZnO nanocavities. Compared to bare ZnO nanocavity arrays, the resulting hybrid AgNP-ZnO design of nanocavities reaches the maximum PESHG enhancement by a factor of approximately 31. Validated by simulations, we can further interpret the relative contribution of fundamental and harmonic modes to Ag-NP dependent PESHG performances, and reveal that the enhancement stems from the co-cooperation effect of plasmon-resonant enhancements both for fundamental and harmonic frequencies. Our findings offer a previously unreported method for designing efficient PESHG systems and pave a way for further understanding of a surface plasmon-coupled second-order emission mechanism for the enhancement of hybrid systems.

scholarly journals Bioprintability: Physiomechanical and Biological Requirements of Materials for 3D Bioprinting Processes

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2262 ◽  
Author(s):  
Andrea S. Theus ◽  
Liqun Ning ◽  
Boeun Hwang ◽  
Carmen Gil ◽  
Shuai Chen ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Hybrid Systems ◽  
Manufacturing Process ◽  
Three Dimensional ◽  
Living Cells ◽  
Clinical Applications ◽  
Fine Tuning ◽  
Biological Processes ◽  
3D Bioprinting ◽  
Qualitative Methodologies

Three-dimensional (3D) bioprinting is an additive manufacturing process that utilizes various biomaterials that either contain or interact with living cells and biological systems with the goal of fabricating functional tissue or organ mimics, which will be referred to as bioinks. These bioinks are typically hydrogel-based hybrid systems with many specific features and requirements. The characterizing and fine tuning of bioink properties before, during, and after printing are therefore essential in developing reproducible and stable bioprinted constructs. To date, myriad computational methods, mechanical testing, and rheological evaluations have been used to predict, measure, and optimize bioinks properties and their printability, but none are properly standardized. There is a lack of robust universal guidelines in the field for the evaluation and quantification of bioprintability. In this review, we introduced the concept of bioprintability and discussed the significant roles of various physiomechanical and biological processes in bioprinting fidelity. Furthermore, different quantitative and qualitative methodologies used to assess bioprintability will be reviewed, with a focus on the processes related to pre, during, and post printing. Establishing fully characterized, functional bioink solutions would be a big step towards the effective clinical applications of bioprinted products.

scholarly journals An X-ray study of new hybrid systems of Fe(III) and Cu(II) based anions

2014 ◽  
Vol 70 (a1) ◽  
pp. C537-C537
Author(s):  
Sofiane Bouacida ◽  
Rafika Bouchene ◽  
Amina Khadri
Keyword(s):  
Hydrogen Bonds ◽  
Hybrid Systems ◽  
Crystal Engineering ◽  
Crystal Packing ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Mean Deviation ◽  
Materials Chemistry ◽  
X Ray ◽  
Dimensional Network

Organic-inorganic hybrid compounds represent one of the most important developments in materials chemistry in recent years [1]. The role of weak intermolecular interactions in the stabilization of these hybrid systems is one of the main targets of our investigation in crystal engineering study. In continuation of our research on N-aromatic heterocyclic-metal halide salts, the X-ray crystal structures of 4-dimethylaminopyridinium (HDMAP) cation with tetrachlorocuprate (II) (1) and tetrachloroferrate (III) (2) anions is reported [2,3]. In (1), Cu(II) is situated on a twofold rotation axis (4 e). The [CuCl4]2- ions are highly distorted with a mean trans angle of 141.02(1)0as a result of hydrogen bonding interactions with two nearly planar HDMAP cations (0.0295 Å mean deviation). The crystal structure of (1) is stabilized by N–H...Cl and C–H...Cl hydrogen bonds. In the three dimensional network, cations and anions pack in the lattice so as to generate chains of [CuCl4]2- anions separated by two orientations of cation layers, which are interlocked through π–π tacking contacts between pairs of pyridine rings, with centroid–centroid distances of 3.7874 (7) Å. In (2), the protonoted 4-(dimethylamino) pyridine cation is essentially planar (the r.m.s deviation for all non-H atoms being 0.004 Å). The packing of the ionic entities is realized by alternating layers of cations and [FeCl4]- anions parallel to (010) whereby the cations are oriented in a zig-zag fashion. The crystal packing is stabilized by N–H...Cl and C–H...Cl hydrogen bonds forming a three-dimensional network.

The orbit of Pluto over a long interval of time

1966 ◽  
Vol 25 ◽  
pp. 227-229 ◽  
Author(s):  
D. Brouwer
Keyword(s):  
Periodic Orbit ◽  
Numerical Integration ◽  
Restricted Problem ◽  
Three Dimensional ◽  
The Third ◽  
Circular Restricted Problem ◽  
Resonance Relation

The paper presents a summary of the results obtained by C. J. Cohen and E. C. Hubbard, who established by numerical integration that a resonance relation exists between the orbits of Neptune and Pluto. The problem may be explored further by approximating the motion of Pluto by that of a particle with negligible mass in the three-dimensional (circular) restricted problem. The mass of Pluto and the eccentricity of Neptune's orbit are ignored in this approximation. Significant features of the problem appear to be the presence of two critical arguments and the possibility that the orbit may be related to a periodic orbit of the third kind.

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