This study provides a new permanent magnetic eddy current drive system to solve the energy-saving problem of scraper conveyor working under bad conditions, including overload startup, severe abrasion and pollution. Considering practical conveying conditions chain on fully mechanised coal mining face, this creates mathematical model for based its characteristics indicates motion driven by two wh...

A scraper conveyor is important in coal mining. During operation, its working performance affected by chain speed fluctuations, terrain and load changes. Thus, evaluating the influence of these factors on dynamic properties a important. This study first built property test bench. Then, vibration signals reducer output shaft were measured under various speed, terrain, conditions. Finally, evalua...

Human-megafauna interaction in the Americas has great scientific and ethical interest because of its implications on Pleistocene extinction. The Arroyo del Vizcaíno site near Sauce, Uruguay has already yielded over 1000 bones belonging to at least 27 individuals, mostly of the giant sloth Lestodon. The assemblage shows some taphonomic features suggestive of human presence, such as a mortality p...

Web scraping is the set of techniques used to automatically get some information from a website instead of manually copying it. The goal of a Web scraper is to look for certain kinds of information, extract, and aggregate it into new Web pages. In particular, scrapers are focused on transforming unstructured data and save them in structured databases. In this paper, among others kind of scrapin...

This study included 27 female patients who applied for medical treatment of arthralgias and myalgias. They were found to have elevated levels of thyroid-stimulating hormone in conjunction with the normal concentrations of thyroid hormones. The therapeutic procedures included corporal and auricular acupuncture, introduction of needles into the reflexogenic scalp and wrist zones (depending on cli...