A Meter 201.5 MHz, 50 mA, 2.0 MeV deuteron radio frequency quadrupole accelerator is proposed as the neutron generator for the neutron experiment facility project at Peking University, China.Based on better understanding of beam losses, some new optimization procedures concerning both longitudinal and transverse dynamics are adopted.Accordingly, th
Horizontal well is one of the important methods of unconventional oil and gas resource development.As increasing length of horizontal section, there is a serious problem that axial force cannot transfer to bit.The drilling field needs a low-friction and low-cost drag reduction tool.This article summarized existing technologies of drag reduction in
Tropospheric ozone is a significant air pollutant with severe adverse effects on human health.The complex dynamics of ozone formation, distribution, and health impacts underscore the need for a comprehensive understanding of this pollutant.Despite Christmas Ornments well-documented health risks, including an estimated 423,100 deaths annually due to