the concept of coordination in supply chain management is different from the viewpoint of the roles of this chain and this difference causes more uncoordination at the entire of the supply chain. hence, regarding to the importance of this subject at the performance of supply chain, the clarification of the coordination concept as a casual model seems very necessary. in this research, the cognit...

Chain exchange between block polymer micelles in highly selective solvents, such as water, is well-known to be arrested under quiescent conditions, yet this work demonstrates that simple agitation methods can induce rapid chain exchange in these solvents. Aqueous solutions containing either pure poly(butadiene-b-ethylene oxide) or pure poly(butadiene-b-ethylene oxide-d4) micelles were combined ...

Accurate and complete vaccine volunteer’s data are one valuable asset for clinical research institutions. Privacy protection the safe storage of vital concerns during trial services. The advent block-chain technology fetches an innovative idea to solve this problem. As a hash chain with features decentralization, authentication, resistibility, blockchain-based can be used safely store volunteer...