в статье рассматривается стратегическое значение Северного морского пути для экономического развития России. Авторами изучены политические, экономические предпосылки этого пути, проанализированы социально-экономические факторы региона и возможные последствия развития.

plantations may influence soil fauna directly or indirectly. this research was conducted in order to study the influence of species plantations on soil macrofauna. plantations of eight tree species including nitrogen fixing trees and non-nitrogen fixing trees based on complete randomized block design with 3 replicates were established in 1372 in dez riverside. soil macrofauna were studied rando...

There exist multiplier effect and substitution in consumption coupons,both of which perform differently various commodities residents.Since Hubei Province began to issued the coupon 2020,it has achieved remarkable results past three years.However,this policy is still confronted with problems such as mismatch between industry structure coupons industries be restored,the imprecise objects coupons...

Purpose The purpose of this work is to explore the feasibility and accuracy with which people can be located in a construction site using Zigbee technology. Such positioning systems will enable the tracking of workers and this is critical in work areas such as tunnels and other constrained spaces which can be hazardous. Furthermore, such systems can detect worker congestion and work in unalloca...

An attack on the implementation of control vectors in the IBM Common Cryptographic Architecture is presented. The final key−part holder in a multiple part import introduces two key−encrypting keys (KEKs), one the intended key and one with a chosen difference from the former, by including this difference in his own key part. When this difference is set to the difference between two control vecto...