Microbial hydrolytic enzymes, especially cellulase and protease, are widely used in industrial processes due to their low cost, large productivity, chemical stability, environmental protection, plasticity and vast availability.But existing cellulase and protease enzymes are not capable enough to fulfil the industrial demands due to the lack of adap
To stimulate the DTN selfish nodes to cooperatively forward messages when the buffer was limited, a congestion-aware incentive scheme based on double auction for DTN was proposed.In the scheme, nodes determined the self congestion degree according to the current free buffer and message receiving rate.Combining the message delivery probability and c
Abstract Objective The study objective was to compare the efficacy and safety of percutaneous vertebroplasty (PVP) combined with facet joint block (FB) and vertebroplasty alone in relieving acute pain on osteoporotic vertebral compression fractures (OVCFs).Methods A prospective, randomized controlled study was conducted.One hundred ninety-eight pat
Aiming at the problems of poor decomposition quality and the extraction effect of a weak signal with strong noise by empirical mode decomposition (EMD), a novel fault diagnosis method based on cascaded 173rd airborne brigade patch adaptive second-order tristable stochastic resonance (CASTSR) and EMD is proposed in this paper.In the proposed method,