The local projection method is applied to inf-sup stable discretisations of the Oseen problem. Error bounds of order r are proven for known inf-sup stable pairs of finite element spaces which approximate velocity and pressure by elements of order r and r− 1, respectively. In case of a positive reaction coefficient, the error constants are robust with respect to the viscosity but depend on the p...

We further develop the general theory of the area reactivity model that provides an alternative description of the diffusion-influenced reaction of an isolated receptor-ligand pair in terms of a generalized Feynman-Kac equation. We analyze both the irreversible and reversible reaction and derive the equation of motion for the survival and separation probability. Furthermore, we discuss the noti...

The smoothness of high-speed railway is extremely strict. As an important part the foundation, subgrade structure has strict deformation requirements. It necessary to ensure that does not have plastic cumulative under long-term cyclic load train, which most critical geodynamic problem in subgrade. This paper studied characteristics filling train loading through triaxial test, three types accumu...

The mechanism of the thiol-ene reaction induced by 330 nm ultraviolet excitation of 1,2-di(quinolin-2-yl)disulfide (QSSQ) in the presence of methyl methacrylate (MMA) is investigated by sub-picosecond to microsecond transient absorption spectroscopy. The measurements, spanning more than seven orders of magnitude of time, directly reveal multiple radical reaction steps. The ground state quinolie...

Aiming to explore the optimal mixture ratio and curing age of solidified muddy soil under dynamic load, paper intends investigate whether can be used as filling high-speed railway subgrade. Based on triaxial test, investigation measured strain elastic modulus different mix ratios ages, also observed microscopic morphology samples by using scanning electron microscope. The results show that addi...

Fall 2013 • Vol. 25 • No. 2 The exceptional fatigue and rutting resistance observed in section N7 made HiMA the material of choice in rehabilitating a nearby pavement test section that was completely failed. Oklahoma’s section N8 has a soft subgrade representative of native Oklahoma soil. The section was originally constructed in 2006 with 10 inches of asphalt over a stiff soil base, simulating...


 Old goaf under the overpass becomes serious hidden trouble of subgrade-pavement and bridge engineering. Based on geological survey, geophysical survey theoretical analysis, this paper studies formation mechanism distribution characteristics surface residual deformation in old No.9 Line Overpass across Rapid Rail Transit No.3 Dalian city. A comprehensive analysis evaluation has been made ...

This paper proposes a comprehensive method for the compaction uniformity evaluation of subgrade in highways based on principle components analysis and BP neural network. A field test resilient Young’s moduli during is performed Zun-Qin highway. The representing are key factors principal component analysis, used as input Back Propagation (BP) networks. degree variation synthesis score three sect...