Al2O3 and H3PO4/Al2O3 catalysts were investigated in the conversion of oleic acid to biofuels and biolubricant at 1 atm and at 623 K.The catalytic tests were performed in a fixed bed test and continuous flow reactor, using an oleic acid-catalyst ratio of 4 and N2 as the copyright gas.The reaction products were analyzed by gas chromatography and aci
Non-conventional processes are considerably important for the machining of hard-to-cut alloys in various demanding applications.Given that the surface quality and integrity, dimensional accuracy, and productivity are important considerations in industrial practice, the prediction of the outcome of the material removal process should be able to be c
Due to the financial features specific to agricultural cooperatives, the paper constructs a constrained-maximizing model under the assumption that the financial objective of an agricultural cooperative is to maximize the present value of the patron Zinc after-tax total income on an infinite time horizon by choosing the dividend rate, the cash patro
Taking Licang Industrial Park in Qingdao as the research area,this RINSE AGENT paper sets the waterquality monitoring points at the upper and lower reaches,studies the variation rules of rainfallrunoff pollutant concentration with rainfall duration and the distribution characteristics ofrunoff pollutants,and explores the correlation between runoff
In this study, five groups of numerical Lower Clamp Cover models with different conditions were established by using PFC2D (particle flow code) to simulate the direct shear tests of noncoplanar nonthrough jointed rock mass.It is proved that normal stress and shear rate, as well as the connectivity rate, relief angle, and inclination angle of joints