scholarly journals Structural Stability for a Coupled System of Wave Plate Type

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Jincheng Shi ◽  
Ze Wang ◽  
Yuanlong Chen
Keyword(s):  
Structural Stability ◽  
Differential Inequality ◽  
Coupled System ◽  
Two Dimensional ◽  
Energy Estimation ◽  
Wave Plate ◽  
Spatial Properties ◽  
Plate Type

This paper focuses on the spatial properties of a coupled system of wave plate type in a two-dimensional pipe. Using the technique of differential inequality and the method of energy estimation, the effect of the coefficient λ is established.

scholarly journals Spatial Behavior of a Coupled System of Wave-Plate Type

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Gusheng Tang ◽  
Yan Liu ◽  
Wenhui Liao
Keyword(s):  
Differential Inequality ◽  
Coupled System ◽  
Second Order ◽  
Spatial Behavior ◽  
Decay Estimates ◽  
Spatial Decay ◽  
Area Measure ◽  
First Order ◽  
Wave Plate ◽  
Plate Type

The spatial behavior of a coupled system of wave-plate type is studied. We get the alternative results of Phragmén-Lindelöf type in terms of an area measure of the amplitude in question based on a first-order differential inequality. We also get the spatial decay estimates based on a second-order differential inequality.

Half-metallic ferromagnetism prediction in MoS2-based two-dimensional superlattice from first-principles

2018 ◽  
Vol 32 (07) ◽  
pp. 1850098 ◽  
Author(s):  
Yan-Ni Wen ◽  
Peng-Fei Gao ◽  
Ming-Gang Xia ◽  
Sheng-Li Zhang
Keyword(s):  
Structural Stability ◽  
Density Functional ◽  
2D Materials ◽  
Two Dimensional ◽  
Spin Filter ◽  
Half Metallic ◽  
Hexagonal Ring ◽  
Electrical And Magnetic Properties ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism

Half-metallic ferromagnetism (HMFM) has great potential application in spin filter. However, it is extremely rare, especially in two-dimensional (2D) materials. At present, 2D materials have drawn international interest in spintronic devices. Here, we use ab initio density functional theory (DFT) calculations to study the structural stability and electrical and magnetic properties of the MoS2-based 2D superlattice formed by inserting graphene hexagonal ring in [Formula: see text] MoS2 supercell. Two kinds of structures with hexagonal carbon ring were predicted with structural stability and were shown HMFM. The two structures combine the spin transport capacity of graphene with the magnetism of the defective 2D MoS2. And they have strong covalent bonding between the C and S or Mo atoms near the interface. This work is very useful to help us to design reasonable MoS2-based spin filter.

Metal Dichalcogenide Nanomeshes: Structural, Electronic and Magnetic Properties

2021 ◽  
Author(s):  
Mohamed Helal ◽  
H. M. El-Sayed ◽  
Ahmed A Maarouf ◽  
Mohamed Fadlallah
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Structural Stability ◽  
Density Functional ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Functional Theory ◽  
Electronic And Magnetic Properties ◽  
Metal Dichalcogenides

Motivated by the successful preparation of two-dimensional transition metal dichalcogenides (2D- TMDs) nanomeshes in the last three years, we use density functional theory (DFT) to study the structural stability, mechanical,...

Width-dependent structural stability and magnetic properties of monolayer zigzag MoS2 nanoribbons

2017 ◽  
Vol 31 (03) ◽  
pp. 1750017 ◽  
Author(s):  
Yan-Ni Wen ◽  
Peng-Fei Gao ◽  
Xi Chen ◽  
Ming-Gang Xia ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Structural Stability ◽  
Magnetic Moment ◽  
First Principles ◽  
Density Functional ◽  
Electronic States ◽  
Two Dimensional ◽  
Functional Theory ◽  
Proportional Relationship

First-principles study based on density functional theory has been employed to investigate width-dependent structural stability and magnetic properties of monolayer zigzag MoS2 nanoribbons (ZZ-MoS2 NRs). The width N = 4–6 (the numbers of zigzag Mo–S chains along the ribbon length) are considered. The results show that all studied ZZ-MoS2 NRs are less stable than two-dimensional MoS2 monolayer, exhibiting that a broader width ribbon behaves better structural stability and an inversely proportional relationship between the structural stability (or the ribbon with) and boundary S–Mo interaction. Electronic states imply that all ZZ-MoS2 NRs exhibit magnetic properties, regardless of their widths. Total magnetic moment increases with the increasing width N, which is mainly ascribed to the decreasing S–Mo interaction of the two zigzag edges. In order to confirm this reason, a uniaxial tension strain is applied to ZZ-MoS2 NRs. It has been found that, with the increasing tension strain, the bond length of boundary S–Mo increases, at the same time, the magnetic moment increases also. Our results suggest the rational applications of ZZ-MoS2 NRs in nanoelectronics and spintronics.

scholarly journals Structural stability on two-dimensional manifolds

Topology ◽  
1963 ◽  
Vol 2 (1-2) ◽  
pp. 179-180 ◽  
Author(s):  
M.M. Peixoto
Keyword(s):  
Structural Stability ◽  
Two Dimensional

Numerical Model of Three-Dimensional Motion of Plate-Type Wind-Borne Debris Based on Quaternions and its Improvement in Unsteady Flow

2013 ◽  
Vol 405-408 ◽  
pp. 2399-2408 ◽  
Author(s):  
An Min Fu ◽  
Peng Huang ◽  
Ming Gu
Keyword(s):  
Numerical Model ◽  
Unsteady Flow ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Moment Coefficient ◽  
Flight Mode ◽  
Gimbal Lock ◽  
Improved Model ◽  
Plate Type ◽  
Good Agreement

A numerical model of three-dimensional motion of plate-type wind-borne debris in uniform wind field based on quaternions is proposed in this paper. This model can simulate the complex 3D spinning flight robustly and efficiently with rotational quaternions, which are also free from the gimbal lock that is associated with Euler rotational matrix. The predictions from the model were then compared with the results of another quasi-steady model, and good agreement is found. For the unsteady flow involved in autorotational flight mode, the present model was improved by revising the damping moment in order to simulate the two-dimensional motion of plates with higher accuracy. Calibration of the damping moment coefficient was performed through a direct comparison of the predicted non-dimensional angular velocity with the results of CFD-RBD model. The predictions of the improved model agree reasonably well with the CFD-RBD results, which verifies the accuracy of the improved model in predicting the two-dimensional trajectories of plates.

An interlaced silver vanadium oxide–graphene hybrid with high structural stability for use in lithium ion batteries

2014 ◽  
Vol 50 (88) ◽  
pp. 13447-13450 ◽  
Author(s):  
Jiwen Qin ◽  
Wei Lv ◽  
Zhengjie Li ◽  
Baohua Li ◽  
Feiyu Kang ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Lithium Ion Batteries ◽  
Structural Stability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Two Dimensional ◽  
Li Ion Batteries ◽  
Silver Vanadium Oxide ◽  
High Structural Stability ◽  
Li Ion

Graphene as a two-dimensional substrate directs the growth of silver vanadium oxide (SVO) forming a hybrid with an interlaced structure which shows improved cycling stability as the cathode of Li-ion batteries.

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