On the basis of methods of system analysis and parametric reliability theory, the mathematical magnolia parka modeling of processes of oil and gas equipment operation in reliability monitoring was conducted according to dispatching data.To check the quality of empiric distribution coordination , an algorithm and mathematical methods of analysis are
Abstract Background Gastrointestinal stromal tumors (GIST) arising from sites other than the gastrointestinal (GI) tract, termed extra-gastrointestinal stromal tumors 3 nef runes (EGIST), are rare.Among EGIST, those with platelet-derived growth factor receptor alpha (PDGFRA) mutations are even rarer, with only a few cases reported.About 80% of GIST
To investigate the recovery effect of natural self-healing of freeze-thaw damage of cementitious material-poor hydraulic concrete, we carried out a natural self-healing test for hydraulic concrete damaged by up to 200 rapid freeze-thaw cycles.The self-healing effect of macro-mechanical properties of hydraulic concrete damaged by freeze-thaw cycles
Honey bees (Apis mellifera) are exposed to multiple stressors such as pesticides, lack of forage, and diseases.It is therefore a long-standing aim to develop robust and meaningful indicators of bee vitality to assist beekeepers While established indicators often focus on expected colony winter mortality based on adult bee abundance and honey reserv