A new scheme of a statically determinate dome truss is proposed.The purpose of the study is to obtain exact formulas for structural deflections under a uniform load and to find upper and lower analytical estimates of the first frequency of natural oscillations depending on the number of panels, sizes, and masses concentrated in the truss nodes.Calc
The article deals with a number of approaches to the use of electrooptical systems and unmanned aerial vehicles (UAV) to solve the tasks of live terrain surface screening, air incident spots and objects survey.The paper provides the grounds for the UAV airframe chosen structure and the design of the electrooptical complex.The light weight, high -wi
BACKGROUND:Fourteen previous meta-analyses have been published to analyze the polymorphisms of individual GSTM1 present/null, GSTT1 present/null, and GSTP1 IIe105Val on breast cancer (BC) risk.However, their meta-analyses did not explore the combined effects of the three genetic polymorphisms on BC risk.In addition, they did not evaluate the credib
Field experiments were carried out in the seasons 2000/2001 and 2001/2002 in Plant Protection Institute, Sooenicowice Branch to assess the influence of foliar fertilizers such as Ekolist PK 1, Ekolist Mg, Mikrosol Z and Urea on healthiness of winter wheat.Foliar fertilizers were mixed with fungicides.The fungicides were applied at full or half reco