Phase error model and compensation method for reflectivity and distance discontinuities in fringe projection profilometry.

Phase shifting fringe projection profilometry is a widely used optical 3D surface measurement method due to its high resolution, high speed, and full-field inspection. However, the measurement accuracy decreases in regions with a reflectivity or distance discontinuity. To this end, first, a general continuous quasi-one-dimensional phase error model is proposed for discontinuity representation.

Virucidal activity and the antiviral mechanism of acidic polysaccharides against Enterovirus 71 infection in vitro.

Enterovirus 71 (EV71) is the predominant pathogen for severe hand, foot, and mouth disease (HFMD) in children younger than 5 years, and currently no effective drugs are available for EV71. Thus, there is an urgent need to develop new drugs for the control of EV71 infection. In this study, LJ04 was extracted from Laminaria japonica using diethylaminoethyl cellulose-52 with 0.

A Depth-Based Weighted Point Cloud Registration for Indoor Scene.

Point cloud registration plays a key role in three-dimensional scene reconstruction, and determines the effect of reconstruction. The iterative closest point algorithm is widely used for point cloud registration. To improve the accuracy of point cloud registration and the convergence speed of registration error, point pairs with smaller Euclidean distances are used as the points to be registered, and the depth measurement error model and weight function are analyzed.

Micro RNA-518 inhibits gastric cancer cell growth by inducing apoptosis via targeting MDM2.

Gastric cancer is a most common malignancy and the third leading cause of cancer mortality worldwide. So it is important to identify the prognostic markers and effective therapeutic targets against gastric cancer. miRNA plays an important role in tumor cell cycle, differentiation, apoptosis, invasion and metastasis.

MiR-422a targets MAPKK6 and regulates cell growth and apoptosis in colorectal cancer cells.

The important role of miR-422a in tumor has been reported in several studies. Recent research discovered that the expression of miR-422a was significantly decreased in colorectal cancer tissues, providing miR-422a as a tumor suppressor in CRC. However, the concrete mechanism of miR-422a regulating CRC cell is still unclear.

Self-recalibration of a robot-assisted structured-light-based measurement system.

The structured-light-based measurement method is widely employed in numerous fields. However, for industrial inspection, to achieve complete scanning of a work piece and overcome occlusion, the measurement system needs to be moved to different viewpoints. Moreover, frequent reconfiguration of the measurement system may be needed based on the size of the measured object, making the self-recalibration of extrinsic parameters indispensable.

Antiviral activity of a polysaccharide from Laminaria japonica against enterovirus 71.

This in vitro study investigated the antiviral activity of an acidic polysaccharide from Laminaria japonica against enterovirus 71 (EV71) as well as its mechanism of action. The LJ04 polysaccharide was purified from Laminaria japonica by affinity chromatography. To investigate its antiviral activity, an MTT assay, q-PCR, immunofluorescent staining and western-blot analysis were performed.

Antiviral activity of polysaccharide extract from Laminaria japonica against respiratory syncytial virus.

Unlabelled: This study was designed to investigate the inhibition activity of polysaccharide extract from Laminaria japonica against RSV. The polysaccharide from Laminaria japonica was isolated by ethanol precipitation. HEK293 cells were infected with RVS, and the antiviral activity of polysaccharide extract against RSV in host cells was tested.