The aim of the paper was to discuss different effects, such as, among others, agglomeration of selected nanoparticles, particularly those from zirconia, on the tribological behavior of lubricants.The explanation of the difference between the concepts of ‘aggregation’ and ‘agglomeration’ for ZrO2 nanoparticles is included.The

Spontaneous rupture of hepatocellular carcinoma (HCC) is a potentially life-threatening complication.Diagnosis may be difficult, particularly in the Bearing Pulley absence of known liver cirrhosis or tumor.A 20-year-old male patient presented with progressive abdominal pain and shock.His past medical history was uneventful.Anemia, acute renal failu

According to the actual situation of methanol production process, Aspen Plus software is used to build the methanol synthesis process flow model.The main and side reaction system is built in the model, which is realized by connecting the main and side reactors in series and setting the conversion rate of side reaction.Considering the model validati

The US Environmental Protection Agency (EPA) and other federal agencies face a number of challenges in interpreting and reconciling short-duration (seconds to minutes) readings from mobile and handheld air sensors with the longer duration averages (hours to days) associated with the National Ambient Air Quality Standards (NAAQS) for the criteria po