搜索结果: 1-15 共查到“物理学 2D”相关记录48条 . 查询时间(0.046 秒)
Using state-of-the-art magnetic imaging, a Cornell-led collaboration has for the first time characterized a key property of the superconducting state of a class of atomically thin materials that are t...
How “2D” materials expand（图）
“2D”材质 原子薄材料 电子设备
2023/6/6
Two-dimensional materials, which consist of just a single layer of atoms, can be packed together more densely than conventional materials, so they could be used to make transistors, solar cells, LEDs,...
Scientists capture first-ever view of a hidden quantum phase in a 2D crystal（图）
二维晶体 隐藏量子相 视图 单脉冲光谱技术
2023/6/6
The development of high-speed strobe-flash photography in the 1960s by the late MIT professor Harold “Doc” Edgerton allowed us to visualize events too fast for the eye — a bullet piercing an apple, or...
压力下铜氧化物超导体的2D-3D超导态跃变（图）
压力 铜氧化物 超导体 2D-3D超导态
2020/1/4
自1986年发现铜氧化物高温超导体以来，人们从实验和理论方面对其开展了广泛的研究，取得了许多重大研究成果，但仍未实现对高温超导电性全面、统一的理解，高温超导机理的破解仍被列为二十一世纪凝聚态物理研究的重大挑战之一，人们期待着能在正确理论指导下发现具有更高超导转变温度且更适于应用的超导体。空穴掺杂的銅氧化物超导体具有最高的超导转变温度，是高温超导研究中最受关注的材料，关键是要理解超导态是如何从正常态...
利用2D-STI技术测量肝硬化患者的左室局部收缩功能，探讨不同Child-Pugh分级肝硬化患者左室收缩功能与肝硬化发展程度的相关性与临床价值。 方法 选取肝硬化患者60例为肝硬化组，将患者根据Child-Pugh分级的A、B、C 3个等级对应分为A、B、C 3组；选取与肝硬化组相同时间段内年龄、性别均相匹配的门诊健康体检者30例为正常对照组。测量常规指标，并分析心尖四腔切面、心尖三腔切面和心尖两...
近期，应用所新能源中心潘旭课题组在研究制备高效稳定的2D/3D钙钛矿太阳电池方面取得新进展，相关研究成果以“引入含卤素官能团的疏水铵盐提高二维/三维钙钛矿太阳电池器件的效率和稳定性”（“Introduction of hydrophobic ammonium salts with halogen functional groups for high-efficiency and stable 2D...
多通道瞬变电磁法的反演工作是在大地脉冲响应的基础上进行的，因此本文用2D有限元正演来求取大地脉冲响应，实现多道瞬变电磁法的正演模拟研究.研究工作首先在有源大地电磁法2D有限元模拟的基础上进行，原有2D有限元法的频带相对于多通道瞬变电磁法的频带是窄频的，为此采用校正法将其扩展到所需的宽度，实现了频率域宽频带有源电磁勘探方法的正演模拟；然后通过频时变换变换到时间域，得到瞬变电磁法的阶跃响应；最后通过求...
A physical pattern recognition approach for 2D electromagnetic induction studies
electromagnetic induction pattern recognition 2d structures
2015/9/28
We present a new tomographic procedure for the analysis of natural source electromagnetic (EM) induction field data collected over any complex 2D buried structure beneath a flat air-earth boundary. Th...
2D electrical resistivity tomographies for investigating recent activation landslides in Basilicata Region (Southern Italy)
landslides electrical resistivity tomography
2015/9/1
The results of a geoelectrical survey in the study of recent activation landslides in the Lucanian Apennine chain
(Southern Italy) are discussed in this paper. During the last two years, after meteor...
Development of 2D Spectral Difference Solver for Viscous Compressible Flow Problems on Unstructured Quadrilateral Meshes
Viscous Compressible Flow 2D Spectral
2015/6/23
The work focuses on the development of a two-dimensional Spectral Dierence (SD) solver
for viscous compressible ow problems on unstructured quadrilateral meshes. We present
the validations of this...
Statistical anomalies in 2011-2012 Russian elections revealed by 2D correlation analysis
Statistical anomalies Russian elections 2D correlation analysis Applications
2012/5/28
Here we perform a statistical analysis of the official data from recent Russian parliamentary and presidential elections (held on December 4th, 2011 and March 4th, 2012, respectively). A number of ano...
Lie-algebraic structure of 2D harmonic oscillator with non-separable complex coupling
Lie-algebra Non-Hermitian quantum mechanics PT-symmetry Multidimensional models Harmonic oscillator Exactly solvable
2011/10/8
Abstract: Using SU(2)X SU(2) Lie-group structure we obtain the algebraization of 2D harmonic oscillator model with complex quadratic coupling. It is shown that the original time-independent Schr\"odin...
Metric deformation and eigenvalue problem in 2D for an irregular boundary
Metric deformation eigenvalue problem irregular boundary Quantum Physics
2011/7/28
Abstract: We prescribe a new formulation for solving the Helmholtz equation in 2D with irregular boundary. A suitable diffeomorphism is used to annul the asymmetries in the boundary by mapping it into...
Spectral properties of a 2D scalar wave equation with 1D-periodic coefficients
2D scalar wave equation 1D-periodic coefficients
2011/7/26
Spectral properties of a 2D scalar wave equation with 1D-periodic coefficients.
On the effective shear speed in 2D phononic crystals
2D phononic crystals antiplane shear-wave speed Mathematical Physics
2011/7/26
On the effective shear speed in 2D phononic crystals.