Jun Lu
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View article: Identifying vortex lattice in type-II superconductors via the dynamic magnetostrictive effect
Identifying vortex lattice in type-II superconductors via the dynamic magnetostrictive effect Open
In type-I superconductors, zero electrical resistivity and perfect diamagnetism define two fundamental criteria for superconducting behavior. In contrast, type-II superconductors exhibit more complex mixed-state physics, where magnetic flu…
View article: Layer-dependent field-free switching of Néel vector in a van der Waals antiferromagnet
Layer-dependent field-free switching of Néel vector in a van der Waals antiferromagnet Open
Two-dimensional antiferromagnets, combining the dual advantages of van der Waals (vdW) and antiferromagnetic materials, provide an unprecedented platform for exploring emergent spin-related phenomena. However, electrical manipulation of Né…
View article: Projection algorithm and its optimizations for computed axial lithography: a review
Projection algorithm and its optimizations for computed axial lithography: a review Open
Volumetric additive manufacturing is a novel additive manufacturing method, offering advantages such as fast printing speed and isotropic mechanical properties. As the important branch of volumetric additive manufacturing, computed axial l…
Walkaway-VSP Velocity Modeling Based on Elastic Full Waveform Tomography Open
Walkaway Vertical Seismic Profiling (VSP) can receive three-component full elastic wavefield information in the well, including upgoing and downgoing P- and SV-waves. This is beneficial for constructing accurate subsurface velocity models …
Deep-learning-assisted spectroscopic single-molecule localization microscopy based on spectrum-to-spectrum denoising Open
A self-supervised deep-learning network (Spec2Spec) can efficiently remove noise and recover low signal-to-noise ratio fluorescence emission spectra from single-molecule emitters, facilitating multiplexed and functional super-resolution im…
The Influence of Coal Lithotype and Metamorphism on the Development Characteristics of Pore and Fracture in Coalbed Methane Reservoir in Ordos Basin and Qinshui Basin Open
To study the characteristics of pores and fractures development in coalbed methane reservoir controlled by coal lithotype and metamorphism, a total of 26 coals from 16 coal mines in the Ordos Basin and Qinshui Basin were tested for kerogen…
Thermodynamic Characteristics of Methane Adsorption and Desorption on Varied Rank Coals: A Systematic Study Open
We acknowledge financial support from National Natural Science Foundation of China (grant nos.41922016, 42130806 and 41830427), and Fundamental Research Funds for the Central Universities (No.2652022207).
Goldene: Free-standing Single-atom-thick Sheets of Gold Open
The quest to make free-standing monolayer gold has hitherto been limited to free-standing several-atoms-thick layers, or monolayers but confined on or inside another template. Examples are monolayers diffused into double hydroxides 1 , mem…
Goldene: Free-standing Single-atom-thick Sheets of Gold Open
The quest to make monolayer gold has hitherto been limited to a few atomic layers stabilized on or inside another material. Examples are monolayers diffused into double hydroxides 1 , sheets framed in Au-Ag alloys under electron irradiatio…
Correction to “Multicomponent Seismic Data Reconstruction via a Biquaternion-Based Vector POCS Method” Open
In the above article [1] , in Fig. 5(b), the Amplitude Error subfigures of Y and Z components are the same as the Amplitude Error subfigure of X component. They are incorrect. They have been replaced by the correct Amplitude Error subfigur…
Extremal trigonal fibrations on rational surfaces Open
For a relatively minimal fibration $f : X \to \mathbb{P}^1$ of non-hyperelliptic curves of genus $g$, we know the Picard number $\rho(X) \leq 3g + 8$. We study the case where $\rho(X) = 3g + 8$ and the Mordell–Weil group of $f$ is trivial.…
Second-Order Approximation of the Seismic Reflection Coefficient in Thin Interbeds Open
As most of the lithostratigraphic reservoirs in China are thin interbeds, the study of seismic responses in thin interbeds is an integral part of lithologic reservoir exploration. However, at present, the research on seismic reflection coe…
Fluid prediction of a deep carbonate reservoir using walkaround 3D-3C vertical seismic profiling data Open
The considerable depth and complicated structure of the Tahe Oilfield in the Tuofutai area of China make it very difficult to delineate its Ordovician carbonate fracture-cavity reservoir. The resolution of conventional ground seismic data …
Prediction of Fractures in Coal Seams with Multi-component Seismic Data Open
Fractures that develop in coal seams threaten safety in many ways, but they can be predicted using fracture parameters derived from seismic data. However, the post-stack split shear waves are difficult to thoroughly separate by Alford rota…
A Low-Order Series Approximation of Thin-Bed PP-Wave Reflections Open
The study of thin-bed seismic phenomena is important in crustal, exploration and engineering seismology. Presently, seismic reflectivity theories based on single-interface assumption are widely used though they are only suitable for thick …
Surface-Wave Extraction Based on Morphological Diversity of Seismic Events Open
It is essential to extract high-fidelity surface waves in surface-wave surveys. Because reflections usually interfere with surface waves on X components in multicomponent seismic exploration, it is difficult to extract dispersion curves of…
Surface-Wave Extraction Based on Morphological Diversity of Seismic Events Open
Extraction of high-resolution surface waves is essential in surface-wave survey. Because reflections usually interfere with surface waves on X-component in a multicomponent seismic exploration, it is difficult to extract dispersion curves …
Vertical Seismic Profile Wavefield Separation Using Median Filtering Constrained by the Linear Radon Transform Open
Separation of downgoing and upgoing P-waves and S-waves in an offset 2D/3D vertical seismic profile (VSP) record is a basic step in VSP data processing. Radon transform and median filtering methods are commonly used to separate wavefields.…
Calculation of AVA Responses for Finely Layered Reservoirs Open
In oil and gas seismic exploration, responses of amplitude variation with incidence angle (AVA) of strata with a single thin layer have been extensively studied, thus laying the theoretical foundation for the prediction of finely layered r…
Noise Attenuation Based on Wave Vector Characteristics Open
Polarization filtering has been widely used to enhance signal-to-noise ratios for multicomponent seismic data. Polarization filters routinely depend on the ellipticity and directionality of spatial particle motions. However, factors such a…
Detection of Tectonically Deformed Coal Using Model-Based Joint Inversion of Multi-Component Seismic Data Open
Tectonically-deformed coal (TDC) is a potential source of threats to coal-mining safety. Finding out the development and distribution of TDCs is a difficult task in coalfield seismic explorations. Based on the previous investigations, the …
Joint velocity updating for anisotropic PP and PS prestack time migration based on hyperbolic correction of nonhyperbolic moveout Open
The analysis of anisotropic velocity has been well researched to support multicomponent seismic migration of anisotropic media. Because of anisotropy and asymmetric ray paths, PS-wave reflection moveout is more nonhyperbolic than PP-wave r…
PP- and Split PS-Wave AVA Responses of Fractured Shale Open
With seismic exploration advancing to the deep Earth, the seismic response of fractured strata has currently become a hot research topic. However, characteristics of the amplitude variation with angle (AVA) of saturated fractured shale sti…
Design and Synthesis of an Artificial Perpendicular Hard Ferrimagnet with High Thermal and Magnetic Field Stabilities Open
It is of great fundamental and practical interest to develop effective means of modulating the magnetic hystereses of magnetic materials and their heterostructures. A notable example is the exchange bias (EB) effect between an antiferromag…