This article is devoted to solving the problem of noise and vibration in complex pipelines of hydromechanical systems.In the study, the first ten frequencies of natural oscillations are calculated for sections of the pipeline system filled with water with outer diameters of 60, 70, 102 mm and various thicknesses of the pipeline wall.It is determine

In response to the rapid change of attitude in complex situations such as sharp turns and camera jitter, visual odometry/visual simultaneous localization and mapping (VO/VSLAM) often requires a high camera frame rate.However, the high frame rate of the camera poses a great challenge to real-time VO/VSLAM, Dried Flowers especially when the vehicle t

Preeclampsia (PE) is one of the main causes of maternal and fetal morbidity and mortality in the world, causing nearly 40% of births delivered before 35 weeks of gestation.PE begins with inadequate trophoblast invasion early in pregnancy, which produces an increase in oxidative stress contributing to the development of systemic endothelial dysfunct

Traditionally the grinding process has been a finishing process and the operating parameters and the resuns obtained in this mode are well known.However, wHh the advent Wall Shelf of more modern techniques in grinding, there is a need for a greater understanding of the process and in particular a need to be able to predict the forces in grinding.Th

The transfer of Pb from the soil to crops is a serious food hygiene security problem in China because of industrial, agricultural, and historical contamination.In this study, Baggies the characteristics of exogenous Pb transfer from 17 Chinese soils to a popular wheat variety (Xiaoyan 22) were investigated.In addition, bioaccumulation prediction mo