This study developed a discrete element simulation model based trailmaster challenger 200x on the 2D particle flow code (PFC2D), of which the mesoscopic parameters were calibrated by the indoor experiments, to investigate the rainfall erosion damage of residual soil slope in the intermittently frozen area.It is to be noted that the runoff scouring
The Piro canoe.A preliminary ethnographic account.The click here article provides a preliminary account of the canoes made and used by the Piro (Yine) people of the Urubamba river in Peruvian Amazonia, with a particular focus on the processes of construction, naming and crewing.The canoe, among these people, is a basic model of affinity, both male-
This article examines the history, development, and issues of urban education in the bushranger awning United States.In an effort to address persistent educational inequalities and better support youth placed at risk because of existing disparities, this article connects interdisciplinary literature and illuminates the plight of high-poverty, publi
A testing environment that imitates gastric geometry and contractile activity is necessary to trailmaster challenger 200x analyse and validate endoluminal surgical robotic devices developed for gastric pathologies.To achieve this goal, a silicone stomach model and a mechanical setup to simulate gastric contractile motion were designed and fabricate
The objects in optical high-resolution remote sensing images (HRRSIs) are usually tiny, dense, and exist in complex backgrounds, which brings great challenges to accurate object detection.This article presents an improved YOLOv5s network-based technique for remote sensing object recognition to overcome these difficulties.First, unnecessary residual