搜索结果: 1-15 共查到“物理学 transport”相关记录160条 . 查询时间(0.125 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Transport properties of Gaussian measures for nonlinear Schrodinger equations
非线性 薛定谔方程 高斯测度 输运性质
2023/11/13
In the statistical study of Hamiltonian PDEs out of the equilibrium (lack of invariant measures), it is a natural question to understand the transport properties for canonical Gaussian measures. The f...
第四届声子晶体/声学超材料，声子传输/声子耦合与拓扑声子学国际会议（The 4th International Conference on Phononic Crystals/Metamaterials,Phonon Transport/Coupling and Topological Phononics ）
第四届 声子晶体/声学超材料，声子传输/声子耦合与拓扑声子学 国际会议
2017/1/11
“声子学（Phononics）”是近年来凝聚态物理领域发展起来的一门新兴学科。随着其相关研究工作不断从理论探索走向工程应用，工程实践驱动为该学科的发展注入了新的活力。声子学的发展体现出物理、振动、声学、热学、力学、材料和机械工程等多学科交叉融合发展的特点，受到国内外相关领域的广泛关注，展现出蓬勃的生命力和广阔的前景。声子学研究的基本对象是一种假想的虚拟粒子——“声子（Phonon）”。声子概念的提...
Time-lapse electrical resistivity anomalies due to contaminant transport around landfills
landfill hydrogeological modeling salinity resistivity geophysical forward and inverse modeling
2015/9/2
The extent of landfill leachate can be delineated by geo-electrical imaging as a response to the varying electrical
resistivity in the contaminated area. This research was based on a combination of h...
Observation of Unusual Mass Transport in Solid hcp 4He
Stop the capillary constant temperature superfluid solid atoms the melting curve
2014/12/20
Solid 4He has been created off the melting curve by growth at a nearly constant mass via the “blocked capillary” technique and growth from the 4He superfluid at constant temperature. The experimental ...
Observation of mass transport through solid 4He
Superfluid helium cells solid temperature
2014/12/19
By use of an experimental design that provides for superfluid helium in contact with bulk hcp 4He off the melting curve, we have observed the dc transport of mass through a cell filled with solid 4He ...
Charge Transport Studies of Proton and Ion Conducting Materials
charge transport impedance spectroscopy ionic conductor PEM PFG-NMR proton conductor
2014/11/20
The development of a high-throughput impedance spectroscopy instrumentation platform for conductivity characterization of ion transport materials is outlined. Collaborative studies using this system a...
Ballistic transport in graphene suggests new type of electronic device（图）
graphene electronic device
2014/3/19
Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost no resistance even at...
Light Transport in Random Media with ${\cal PT}$-Symmetry
Light Transport Random Media ${\cal PT}$-Symmetry Optics
2012/5/29
The scattering properties of randomly layered optical media with ${\cal PT}$-symmetric index of refraction are studied using the transfer-matrix method. We find that the transmitance decays exponentia...
Fast-ignition design transport studies: realistic electron source, integrated PIC-hydrodynamics, imposed magnetic fields
Fast-ignition design transport realistic electron source integrated PIC-hydrodynamics imposed magnetic fields
2012/5/29
Transport modeling of idealized, cone-guided fast ignition targets indicates the severe challenge posed by fast-electron source divergence. The hybrid particle-in-cell [PIC] code Zuma is run in tandem...
Electronic transport coefficients from ab initio simulations and application to dense liquid hydrogen
Electronic transport coefficients ab initio simulations liquid hydrogen Plasma Physics
2012/5/17
Using Kubo's linear response theory, we derive expressions for the frequency-dependent electrical conductivity (Kubo-Greenwood formula), thermopower, and thermal conductivity in a strongly correlated ...
Long range transport of ultra cold atoms in a far-detuned 1D optical lattice
Long range transport ultra cold atoms far-detuned 1D optical lattice Atomic Physics
2012/4/27
We present a novel method to transport ultra cold atoms in a focused optical lattice over macroscopic distances of many Rayleigh ranges. With this method ultra cold atoms were transported over 5 cm in...
A quasi-linear gyrokinetic transport model for tokamak plasmas
quasi-linear gyrokinetic transport model tokamak plasmas Plasma Physics
2012/4/24
The development of a quasi-linear gyrokinetic transport model for tokamak plasmas, ultimately designed to provide physically comprehensive predictions of the time evolution of the thermodynamic releva...
Short Calculation of Particle Transport Properties in Hydrogen Gas
Hydrogen Transport property Diffusion Thermophoresis Migration
2016/3/28
Usage of hydrogen gas has increased due to fast development of the fuel cell technology. Currently, little attention is
paid to particles in hydrogen gas, however, particles in hydrogen gas have grea...
Highly tunable spin-dependent electron transport through carbon atomic chains connecting two zigzag graphene nanoribbons
Highly tunable spin-dependent electron transport carbon atomic chains zigzag graphene nanoribbons
2012/2/27
Motivated by recent experiments of successfully carving out stable carbon atomic chains from graphene [Meyer et al. Nature (London) 454, 319 (2008); Jin et al. Phys. Rev. Lett. 102, 205501 (2009)] we ...
Effect of charged impurity correlation on transport in monolayer and bilayer graphene
charged impurity correlation transport monolayer bilayer graphene
2012/2/27
We study both monolayer and bilayer graphene transport properties taking into account the presence of correlations in the spatial distribution of charged impurities. In particular we find that the exp...