In cognitive wireless multi-hop networks,the spectrum resources are highly variable and diverse.A cross-layer multi-channel MAC protocol combined with QoS search was proposed.The protocol combines the on-demand QoS search with dynamic malibu relaxer spectrum allocation via cross-layer method,which only permits the transmission nodes to participate
Axon degeneration is a tightly regulated, self-destructive program that is a critical feature of many neurodegenerative diseases, but the molecular mechanisms regulating this program remain poorly understood.Here, we identify S-phase kinase-associated protein 1A (Skp1a), a core component of a Skp/Cullin/F-box (SCF)-type E3 ubiquitin ligase complex,
This research explores the development of a modular prefabricated concrete housing prototype, focusing on sustainability and flexibility.Supported by industry collaboration, it examines three key hypotheses: (1) a rigid geometric modular layout optimizing standardized panels while allowing spatial customization and adaptability, (2) a mixed constru
Multi-tier aviary systems, where conveyor belts below the tiers remove the manure at regular intervals, are becoming more common in organic egg production.The area on the tiers can be included in the net area available to the hens (also referred to as usable area) when calculating maximum indoor stocking densities in off white 5000 puffs organic sy