Abstract Aiming at the engineering problem that 5G base station antenna is difficult to locate efficiently 3mzfe engine for sale in complex electromagnetic environment, a two-stage positioning method of 5G base station antenna substation is proposed, which considers signal path loss and antenna RF radiation.Firstly, the path loss solution model of
Mission-critical sensors and sensor networks (MC-SSN) have been applied to missions such as battlefield, border patrol, search and rescue, critical structure monitoring, and surveillance.To support critical missions, sensors and sensor networks need to be flexible and interactive and continuously work despite limited bandwidth, intermittent connect
Introduction.Subvesical bile duct (SVBD) injury is a secondary major cause of minor bile duct injury after laparoscopic cholecystectomy (LC).However, this injury is usually not recognized intraoperatively, but postoperatively.Case Report.Case 1: the patient was an 84-year-old female, preoperatively diagnosed with acute cholecystitis.During LC, a ti
Our objective was to design an efficient system for collection of refluxing irrigant during performance of percutaneous cystolithotripsy (PCL) to avoid the messy spillage and glass.dildo its undesirable consequences on the patient, the operating team and the operating room environment.A closed drainage system using a long sleeve surgical glove, 10
Increasing atmospheric CO2 concentration is generally expected to enhance plant growth, allocation and chemical composition of alkaloids in medicinal plants.The response to the elevated CO2 concentrations of various medicinal plants were studied with reference to growth and biochemical changes.Catharanthus roseus is an important medicinal plant whi