Method for Underground Mining Shaft Sensor Data Collection.

The motivation behind this research is the lack of an underground mining shaft data set in the literature in the form of open access. For this reason, our data set can be used for many research purposes such as shaft inspection, 3D measurements, simultaneous localization and mapping, artificial intelligence, etc. The data collection method incorporates rotated Velodyne VLP-16, Velodyne Ultra Puck VLP-32c, Livox Tele-15, IMU Xsens MTi-30 and Faro Focus 3D.

Affordable Robotic Mobile Mapping System Based on Lidar with Additional Rotating Planar Reflector.

This paper describes an affordable robotic mobile 3D mapping system. It is built with Livox Mid-40 lidar with a conic field of view extended by a custom rotating planar reflector. This 3D sensor is compared with the more expensive Velodyne VLP 16 lidar.

Calibration of Planar Reflectors Reshaping LiDAR's Field of View.

This paper describes the calibration method for calculating parameters (position and orientation) of planar reflectors reshaping LiDAR's (light detection and ranging) field of view. The calibration method is based on the reflection equation used in the ICP (Iterative Closest Point) optimization. A novel calibration process as the multi-view data registration scheme is proposed; therefore, the poses of the measurement instrument and parameters of planar reflectors are calculated simultaneously.

Propofol-induced injection pain: comparison of a modified propofol emulsion to standard propofol with premixed lidocaine.

Propofol is well known for its association with pain on injection. The most frequently used method to reduce this pain is premixture with lidocaine. Recently, a modified lipid emulsion of propofol containing medium-chain triglycerides (MCT) with long-chain triglycerides (LCT), in contrast to the usual LCT formulation, has been advocated to alleviate pain.