Ruoru Li
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View article: Strategies for Suppression and Compensation of Signal Loss in Ptychography
Strategies for Suppression and Compensation of Signal Loss in Ptychography Open
X-ray ptychography is an ultrahigh resolution imaging technique widely used in synchrotron radiation facilities. Its imaging performance relies on the quality of the acquired signals. However, the X-ray detectors used often suffer from sig…
View article: Dynamic Coherent Diffractive Imaging with Modulus Enforced Probe and Low Spatial Frequency Constraints
Dynamic Coherent Diffractive Imaging with Modulus Enforced Probe and Low Spatial Frequency Constraints Open
Dynamic behavior is prevalent in biological and condensed matter systems at the nano- and mesoscopic scales. Typically, we capture images as “snapshots” to demonstrate the evolution of a system, and coherent X-ray diffraction imaging (CDI)…
View article: Enhanced Imaging in Scanning Transmission X-Ray Microscopy Assisted by Ptychography
Enhanced Imaging in Scanning Transmission X-Ray Microscopy Assisted by Ptychography Open
Scanning transmission X-ray microscopy (STXM) is a direct imaging technique with nanoscale resolution. But its resolution is limited by the spot size on the sample, i.e., by the manufacturing technique of the focusing element. As an emergi…
View article: Periodic Artifacts Generation and Suppression in X-ray Ptychography
Periodic Artifacts Generation and Suppression in X-ray Ptychography Open
As a unique coherent diffraction imaging method, X-ray ptychography has an ultrahigh resolution of several nanometers for extended samples. However, ptychography is often degraded by various noises that are mixed with diffracted signals on…
View article: Maximum ceasing angle of inclination andflux formula for granular orifice flow in water
Maximum ceasing angle of inclination andflux formula for granular orifice flow in water Open
In previous work [Acta Phys. Sin. 60 054501 (2011)], we found that for inclined Granular Orifice Flow (GOF) in air, regardless of the orifice size, the flow rate Q had a good linear relationship with the cosine of the inclination , i.e. , …