Supercritical CO2 phase change fracturing technology has been widely used in rock engineering. However, the surface vibration characteristics induced by breaking have not sufficiently studied. In this paper, a model for calculating velocity supercritical was established based on time-domain recursive method, and reliability of verified using LS-DYNA nonlinear finite element software; blasting e...

In this study, the structural performance of joint construction method using aluminum sprayed plate in concrete was evaluated, and corrosion characteristics film mortar also evaluated. The rate high early stage after placing, but it decreased with passage embedding period. This due to products deposited on surface aluminum, which presumably suppression especially anodic reactions. evaluation, w...

In the field of hardware and software verification, many applications require to determine satisfiability of first-order-logic with respect to one or more background theories, also referred to as Satisfiability Modulo Theories (SMT). The majority of these applications relies on bit-precise reasoning as provided by SMT solvers for the quantifier-free theory of fixed-size bit-vectors, often combi...

Ground vibrations caused by blasting are undesirable results in the mining industry and can cause serious damage to the nearby buildings and facilities; therefore, controlling such vibrations has an important role in reducing the environmental damaging effects. Controlling vibration caused by blasting can be achieved once peak particle velocity (PPV) is predicted. In this paper, the values of P...

Shot Peening process relies on multiple impacts of spherical media to a surface to achieve residual compressive stresses. This results in improved material characteristic.0utofthetwomethodd propeilingshotsforpeeningviz. Airless Shot Peening and Pneumatic Shot Peeningthis papercteals with essentials of centrifugal Blasting Machine and converting a centrifugal Airless Blast Machine to a Shot Peen...