Few-layer graphene (FLG) was added as a nano-additive to lithium complex grease (LCG) explore the influence of FLG on microstructure, viscoelasticity, friction and wear properties LCG. Studies have found that addition makes microstructure thickener more compact, which in turn leads an increase viscoelasticity additives can improve viscosity-temperature change elastic deformation response temper...

Purpose Pretreatment of fabric with a number chemicals and auxiliaries is prerequisite for inkjet printing. Owing to the rapidly increasing use printing textile fabrics, study effects process variables on various characteristics resulting print has drawn considerable interest recently. The purpose this paper different associated quality print. Specifically, used in pretreatment prior factors su...

The Combined Activated Sludge-Anaerobic Digestion Model (CASADM) quantifies the effects of recycling anaerobic-digester (AD) sludge on the performance of a hybrid activated sludge (AS)-AD system. The model includes nitrification, denitrification, hydrolysis, fermentation, methanogenesis, and production/utilization of soluble microbial products and extracellular polymeric substances (EPS). A CAS...

Abstract: Lubricating greases show a structural degradation due to friction stress. The shear process dissipates energy. This results in a breakdown of the thickener structure, heat and entropy generation. Tribo-systems are energy driven systems. The stressed lubricating grease is modeled as a subsystem and presents an open thermodynamic system. Investigations were made to obtain more informati...

A suitable reaction system, and proper conditions were designed to produce desirable polyurethane base thickener with a calculated number average molecular weight. Initially an ethoxylated urethane prepolymer was synthesized by reaction of a polyethylene glycol (M„=6000) and dicyclohexylmethane diisocyanate using the step growth polymerization technique. Modification was carried out by reaction...

The chief purpose of this paper is to formulate and partly analyze a new mathematical model for continuous sedimentation-consolidation processes of flocculated suspensions in clarifierthickener units. This model appears in two variants for cylindrical and variable cross-sectional area units, respectively (Models 1 and 2). In both cases, the governing equation is a scalar, strongly degenerate pa...