Aiming at the problems of tapered roller bearings applied in high-speed EMUs in our country, such as bearing grease leakage, abnormal Pod Vapes temperature rise, and stripping, using forward design concept, combined the technical characteristics of cylindrical roller bearings of radial load capacity, high speed limit, strong maintaining lubrication
Introduction: Premenstrual syndrome (PMS) affects the majority of women and is characterized by physical, behavioral, and mood symptoms, which can have a profound impact on quality of life.PMS symptoms have also been linked to licit substance use.This study examined the relationships between daily/problem use Dab Inserts (DPU) of caffeine (Caf+), a
Proper vascular formation is regulated by multiple signaling pathways.The vascular endothelial growth factor (VEGF) signaling promotes endothelial proliferation.Notch and its downstream targets act to lead endothelial cells toward an arterial fate through regulation of arterial gene expression.However, the mechanisms of how endothelial cells (ECs)
World Wide Web (WWW) constitutes fuzzy information and requires soft computing techniques to deal context of the query.It works on the principle of keyword matching yielding low precision and recall.Semantic web, an extension WWW improves the information retrieval process.Query expansion is utmost importance in information retrieval to retrieve rel