Governments and institutions have the following sustainable development goals: improvement of energy efficiency reduction CO2 emissions, in a “green economy” approach, currently become fundamental drivers that push research activity toward optimization rotating machine components industrial sector, with special focus on lubrication systems too. The is directed towards tribological testing metho...

English is one of the key subjects basic education in many countries; more and students tend to learn online. This paper takes middle school texts as research object proposes a method test knowledge graph construction. Through acquiring data, preprocessing corpus, designing feature vectors, this realizes extract points from tests based on SVM model construct an graph. It important standardizati...