The Variation of Film Thickness in Highly Loaded Contacts

Abstract

S yst ematic m easurements wit h a disk machin e of t he thick ness of th e lubr icatin g film separating the surf aces of heavily loaded rollers hav e been made, and th e variati on of film thi ck ness w ith applied load and rolling speed has been studied. It was found that the result s can be expressed by:where H is th e minimum film thickness in th e contact in microns , W is the appli ed load per unit width in dyn es per centime ter, and TjU is expr essed in dyne s per centimeter.eom porison with recent elasto-hydrodynamic th eory shows that the result s agree at least to the magnit ude of film thi ckn ess. Significant differences in the details, howev er, indicate a further need for experimental data.

Reaction of human α2‐antiplasmin and plasmin Stopped‐flow fluorescence kinetics

“…Little effect corresponding with interaction at the LBS of kringle 1 (& =0.4-1 FM) is seen. This is in accordance with recent findings in the bovine system [33].…”

“…In human plasminogen the kringle 1-3 fragment does not bind intact fibrin [16,43,44], but may participate in the enhanced binding during plasmin-catalysed fibrin degradation, when C-terminal lysine residues, that serve as ligands for such binding, are formed [11,45]. The possibility of a more prominent role of the LBSs of kringles 4 and 5 rather than of the kringle I-LBS as regulatory domains in the human system has recently received attention [l 1,12,15,33,46,47].…”

The X-shooter GRB afterglow legacy sample (XS-GRB)

“…Examples range from small-scale phenomena relating to magnetars, properties of highly relativistic jets, hyper/supernova explosions, the interstellar medium, dust extinction curves, starburst galaxies, chemical and molecular abundances, escape of ionizing radiation, the ionization state of the intergalactic medium, intervening absorption systems to standard candles in cosmology (e.g., Wijers et al 1998;Savaglio 2006;Ghirlanda 2007;Molinari et al 2007; Am-Based on observations collected at the European Southern Observatory, Paranal, Chile, Program IDs: 084.A-0260, 084.D-0265, 085.A-0009, 086.A-0073, 087.A-0055, 088.A-0051, 089.A-0067, 090.A-0088, 091.A-0877, 0091.C-0934, 092.A-0124, 092.D-0056, 092.D-0633, 093.A-0069, 094.A-0134, 095.A-0045, 095.B-0811, 096.A-0079, 097.A-0036, 098.A-0136, and 098.A-0055. e-mail: jselsing@dark-cosmology.dk † On-call observer ati et al 2008;Vergani et al 2009;Prochaska et al 2009;Hjorth & Bloom 2011;Rowlinson et al 2017;Christensen et al 2017).…”

MapleTensor

“…Expansions in truncated power series: Asymptotic expansion of the components of the various tensors. Applications of this can be found in gravitational radiation [23].…”