The effect of differentiating the thermal conductivity between inner and outer walls on stability a U-bend catalytic heat-recirculating micro-combustor was investigated. To this end, two-dimensional computational fluid dynamics (CFD) model developed using commercial code ANSYS Fluent (release 2020 R1) and, for different combinations values conductivities, simulations lean pre-mixed propane/air ...

The lateral stability control of the vehicle can avoid serious traffic accidents when it had a tire blowout during operation. This article proposes robust nonlinear method for controlling after blowout. To be exact, seven degree freedom dynamic model with modified Dugoff is established. yaw moment performed by differential braking once occurring. As strategy, taking linear two as reference, usi...

The Gulf of Mexico ecosystem is a hotspot for biological diversity and supports a number of industries, from tourism to fishery production to oil and gas exploration, that serve as the economic backbone of Gulf coast states. The Gulf is a natural hydrocarbon basin, rich with stores of oil and gas that lie in reservoirs deep beneath the seafloor. The natural seepage of hydrocarbons across the Gu...

Posterior wall blowout is an important potential source of anterior cruciate ligament reconstruction failures that can be avoided if surgeons adhere to proper technique and are vigilant in confirming appropriate femoral tunnel placement. This article reviews techniques for avoidance, recognition, and salvage of posterior wall blowouts in anterior cruciate ligament reconstruction surgery.

The stability of the tunnel face during tunneling is one major criteria for design and construction tunnel. Collapse blowout are two modes failure excavation. cover-to-diameter ratio main parameters controlling these modes. Several analytical solutions have been proposed to estimate range support pressure applied on avoid both collapse blowout. However, most those models deal with homogeneous s...