the effect of steel plate thickness on the repair effectiveness of rc beam is presented in this paper. a total of four beams were tested, one beam repaired by cfrp with a thickness of 1.2 mm and used as a control beam, and three beams repaired by a steel plate. steel plates with a thickness of 2 mm, 3 mm, and 4 mm were used in repairing the beams. the maximum load-carrying capacity, deflection ...

Abstract While the effectiveness of lockdowns to reduce Coronavirus Disease-2019 (COVID-19) transmission is well established, uncertainties remain on lifting principles these restrictive interventions. World Health Organization recommends case positive rate 5% or lower as a threshold for safe reopening. However, inadequate testing capacity limits applicability this recommendation, especially in...

The temporal dynamic use of newly installed fishways after a reopening event is not well known as most studies are performed just the opening and generally limited to single season or year. We carried out monitoring three for several consecutive years on rivers in Belgium from date their opening. To identify colonisation dynamics fish species, we analysed patterns specific diversity, abundance,...

Deactivation of voltage-gated potassium (K(+)) channels can slow or prevent the recovery from block by charged organic compounds, a phenomenon attributed to trapping of the compound within the inner vestibule by closure of the activation gate. Unbinding and exit from the channel vestibule of a positively charged organic compound should be favored by membrane hyperpolarization if not impeded by ...

Hub location-allocation problems are currently a subject of keen interest in the research community. However, when this issue is considered in practice, significant difficulties such as traffic, commodity transportation and telecommunication tend to be overlooked. In this paper, a novel robust mathematical model for a p-hub covering problem, which tackles the intrinsic uncertainty of some param...

Interfacial flows during cyclic airway reopening are an important source of ventilator-induced lung injury. However, it is not known how changes in airway wall compliance influence cell injury during airway reopening. We used an in vitro model of airway reopening in a compliant microchannel to investigate how airway wall stiffness influences epithelial cell injury. Epithelial cells were grown o...

The COVID-19 pandemic has affected travel behaviors and transportation system operations, cities are grappling with what policies can be effective for a phased reopening shaped by social distancing. A baseline model was previously developed calibrated pre-COVID conditions as MATSim-NYC. new COVID is that represents behavior during the recalibrating population agendas to include work-from-home r...

BACKGROUND AND PURPOSE The proportion of incompletely occluded aneurysms after coiling varies widely between studies. To assess overall outcome of coiling, we systematically reviewed the literature to determine initial occlusion, reopening, and retreatment rates of coiled aneurysms according to predefined criteria and subgroups. METHODS We searched PubMed and EMBASE (January 1999 to September...