In rheological experiments, the relationship between stress and strain is determined. transient regime, this may depend on which of these properties applied measured. general, data collected using one or other as control parameter are not necessarily equivalent. Moreover, assumed steady state relaxation following might whether has been applied. We examined colloidal suspensions with concentrati...

Temperature significantly affects the mechanical properties of geomaterials, particularly creep behavior soft clayey soils. Thus, an appropriate constitutive model to describe time-dependent stress-strain soils at various temperatures is necessary. This study performed temperature-controlled oedometer tests on two soils: Hong Kong marine deposit (HKMD) and kaolinite clay (kaolin). The thermally...

Magnetic proximity has been observed in a variety of solid-state magnetic devices, but less discussed at the molecular scale. In this study, magnetotransport calculation is carried out using generalized Landau-Lifshitz-Gilbert (LLG) equation combined with density functional theory (DFT) and our self-developed junpy calculated spin-torque effect. Except for current driven spin torque, which prom...

Strain engineering of epitaxial transition metal oxide heterostructures offers an intriguing opportunity to control electronic structures by modifying the interplay between spin, charge, orbital, and lattice degrees freedom. Here, we demonstrate that structure, magnetic transport properties ${\mathrm{La}}_{0.9}{\mathrm{Ba}}_{0.1}{\mathrm{MnO}}_{3}$ thin films can be effectively controlled strai...

male guinea pigs show high susceptibility to burkholderia mallei and have been used as animal models in glanders studies. the purpose of our study was to elucidate glanders comparative pathogenesis in guinea pigs. we present here the histological changes and bacterial isolation that develop over time in guinea pigs inoculated intraperitoneally (ip) with two strain of b. mallei. ten male guinea ...

Recent advances in fabricating controlled-morphology vertically aligned carbon nanotubes (VA-CNTs) with ultrahigh volume fraction create unique opportunities for markedly improving the electromechanical performance of ionic polymer conductor network composite (IPCNC) actuators. Continuous paths through inter-VA-CNT channels allow fast ion transport, and high electrical conduction of the aligned...

Strain Rv6, a streptomycin-independent reverse mutant of Salmonella abortus-ovis, multiplied and disseminated in vivo to a lesser extent than the virulent parental strain 15/5, as determined by subcutaneous inoculation of two outbred strains of mice with different susceptibilities to salmonella infection. This lower virulence of strain Rv6 was not modified by 10 passages in susceptible mice. Va...

This study concerns the exploitation of the lytic enzyme enterolysin A (EntL), produced by Enterococcus faecalis strain DPC5280, to elicit the controlled autolysis of starter lactococci. EntL, a cell wall metalloendopeptidase secreted by some E. faecalis strains, can kill a wide range of gram-positive bacteria, including lactococci. The controlled expression of entL, which encodes EntL, was ach...

A macroscopic ductile-to-brittle transition in chip formation with ductile gummy metals, arising from 3.5 to 100 nm thick organic films on the workpiece surface, is demonstrated. The principal characteristics of phenomenon, annealed aluminum, are change flow mode one dominated by large-strain plasticity controlled fracture; and up 70% reduction cutting force. This embrittlement has important be...

Metallic nanowires usually exhibit ultrahigh strength but low tensile ductility owing to their limited strain hardening capability. Here we study the unique strain hardening behavior of the five-fold twinned Ag nanowires by nanomechanical testing and atomistic modeling. In situ tensile tests within a scanning electron microscope revealed strong strain hardening behavior of the five-fold twinned...