Wave energy is a kind of clean renewable energy that is huge and still need further research.Point absorber wave energy converter (PA-WEC) is widely utilized for offshore power devices.The PA-WEC utilizes the heave motion to drive linear electric generator or a hydraulic motor to generator using power take off (PTO) system.And the PTO system usuall
A new efficient synthesis for 2-thiopteridine-4,6,7-triones (6-10, 15) has bob terzuola atcf been found in the condendation of the appropriate 5,6-diaminopyrimidine (1-5, 14) with oxalic acid in DMF.Analogous condensations with dimethyl oxalate led to S-alkylation probably via an intermediate O-methylation of the DMF.8-Methyl-2- thiopteridine-4,6,7
In view of problem that information cannot be shared in original safe production commanding platform of a Coal Group between coal group and subordinate units, the paper proposed a design scheme of safe production commanding platform based on iFIX and iHistorian configuration softwares.It detailedly introduced construction process of the platform fr
Aims: The aim of this in-vitro study was to compare the retention force of Polyetheretherketone (PEEK) and Cobalt-Chromium (Co-Cr) clasps by mechanical cycling test sandusky file cabinet simulating ten years of use.Materials and Methods: 72 clasps samples were fabricated on a standardized e-max upper right first premolar, it is divided into 24 Co-C