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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Solve electromagnetic interface problems on unfitted meshes
未拟合 网格 电磁接口
2023/5/4
Electromagnetic interface problems widely appear in a lot of engineering applications, such as electric actuators, invasive detection techniques and integrated circuit，which are typically described by...
2022年11月24日，重庆师范大学物理与电子工程学院、光电功能材料重庆市重点实验室余鹏教授课题组发表了增强非晶态合金电催化析氧性能的研究成果。研究成果以题为“Annealing and electrochemically activated amorphous ribbons:Surface nanocrystallization and oxidation effects enhanced f...
Generation of super-len gth optical needle by focusi ng hybridly polarize d vector beams through a dielectric interface
Generation super-len gth optical needle focusing hybridly polarize dvector beams dielectric interface
2013/7/3
A super-length optical needle (～14λ) of strong transversally polarized field with homogeneous intensity along the optical axis and subdiffraction beam size ( ～0 .9λ) can be generated by focusing a hyb...
Losses in superconducting Niobium Films caused by Interface Tunnel Exchange
Superconducting cavities niobium Quadrupole Resonator interface tunnel exchange surface resistance
2012/4/20
Identifying the loss mechanisms of niobium film cavities enables an accurate determination of applications for future accelerator projects and points to research topics required to mitigate their limi...
Impurity-assisted Andreev reflection at a spin-active half-metal-superconductor interface
Impurity-assisted Andreev reflection spin-active half-metal-superconductor interface
2012/2/27
The Andreev reflection amplitude at a clean interface between a half-metallic ferromagnet (H) and a superconductor (S) for which the half metal's magnetization has a gradient perpendicular to the inte...
Muon Collider interaction region and machine-detector interface design
Muon Collider interaction region machine-detector interface design
2012/2/28
One of the key systems of a Muon Collider (MC) - seen as the most exciting option for the energy frontier machine in the post-LHC era - is its interaction region (IR). Designs of its optics, magnets a...
Interface Wall Energy in Exchange-Coupled Magneto-Optical Films
exchange-coupled double-layered magnetically induced super-resolution center aperture detection interface wall energy capping effcet
2011/11/30
Exchange-coupled double-layered (ECDL) films were adopted to increase density of magnetically induced superresolution (MSR) media by using center aperture detection scheme,and to improve sensitivity o...
Weight function in a bimaterial strip containing an interfacial crack and an imperfect interface. Application to Bloch-Floquet analysis in a thin inhomogeneous structure with cracks
Bloch-Floquet waves boundary layer crack imperfect interface weight function
2011/9/22
Abstract: We define a weight function in a bi-material strip containing a semi-infinite crack and an imperfect interface and analyse a problem of anti-plane shear. We then present an asymptotic algori...
Realization of an optomechanical interface between ultracold atoms and a membrane
optomechanical interface ultracold atoms membrane Quantum Gases
2011/8/17
Abstract: We have realized a hybrid optomechanical system by coupling ultracold atoms to a micromechanical membrane. The atoms are trapped in an optical lattice, which is formed by retro-reflection of...
Spiky development at the interface in Rayleigh-Taylor instability: Layzer approximation with second harmonic
Layzer second harmonic
2011/8/30
Layzer’s approximation method for investigation of two fluid interface structures associated with Rayleigh Taylor instability for arbitrary Atwood number is extended with the inclusion of second harmo...
New structural model for GeO2/Ge interface: A first-principles study
New structural model for GeO2/Ge interface first-principles study
2010/11/24
First-principles modeling of a GeO2/Ge(001) interface reveals that sixfold GeO2, which is derived from cristobalite and is different from rutile, dramatically reduces the lattice mismatch at the inter...
Bosonic enhancement of spontaneous emission near an interface
Bosonic enhancement spontaneous emission
2010/11/24
We show how the spontaneous emission rate of an excited two-level atom placed in a trapped Bose-Einstein condensate of ground-state atoms is enhanced by bosonic stimulation. This stimulation depends o...
Quantum Capacitance vs Chemical Potential Universal Curve and Interface Trap Parameter Extraction in Graphene Gated Structures
Quantum Capacitance hemical Potential Universal Curve Interface Trap Parameter Extraction Graphene Gated Structures
2010/11/25
We study influence of the interface traps unavoidably occurring at or near the interface
between the graphene sheets and the insulating substrate or top gate oxide on the
capacitance characteristics...
Thermodynamically Consistent Diffuse Interface Models for Incompressible Two-Phase Flows with Different Densities
Diffuse Interface Models Incompressible Two-Phase Flows Different Densities
2010/11/12
A new diffuse interface model for a two-phase flow of two incompressible fluids with different densities is introduced using methods from rational continuum mechanics. The model fulfills local and gl...
Enhanced stability of hydrogen atoms at the graphene/graphane interface of nanoribbons
Enhanced stability of hydrogen atoms graphene/graphane interface of nanoribbons
2010/11/24
The thermal stability of graphene/graphane nanoribbons (GGNRs) is investigated using density functional theory. It is found that the energy barriers for the diffusion of hydrogen atoms on the zigzag a...