Aiming at the problem that traditional cloud-based data sharing schemes rely on trusted third parties and only focus on data privacy protection or access control, a blockchain data sharing scheme based on localized difference privacy and attribute-based searchable encryption Implements was proposed.The blockchain and cloud server were combined to s
It was proved that the P2P streaming system could JVN be modeled by a queuing chain which was composed by multiple M/M/n queuing system according to the queuing theory.Based on this result,the stationary transmission model of P2P streaming was proposed by the analysis on the peer buffer state variation.The transmission characteristics under differe
Abstract Background Leymus chinensis is a vital, dominant grass species in Eurasian temperate grasslands, including the Inner Mongolian steppe.L.chinensis exhibits enhanced drought tolerance through symbiosis with arbuscular mycorrhizal fungi (AMF).The physiological mechanisms behind this drought resistance need to be unraveled.A pot experiment was
Hillary J Mull,1,2 Marlena H Shin,1 Ryann L Engle,1 Amy M Linsky,1,3,4 Emily Kalver,1 Rebecca Lamkin,1 Jennifer L Sullivan1,5 1VA Boston Healthcare System, Center for Healthcare Organization and Implementation Research (CHOIR), Boston, MA, USA; 2Department of Surgery, Boston University School of Medicine, Boston, MA, USA; 3General Internal Medicine