The textile and apparel production consumption generate a huge amount of solid waste. Mechanical recycling is one main method to recycle cotton waste; however, shredding in mechanical shortens fiber length reduces quality. As result, the application mechanically recycled textiles may be limited. This research investigated methods post-consumer waste designed developed second-life products. stud...

Ab.wacrThis paper presents ABROAD, an adaptive medium access control (MAC) protocol for reliable broadcast packet transmission in wireless networks. ABROAD incorporates a collision-avoidance handshake within each slot of a synchronous transmission schedule, allowing nodes to reclaim and/or rewe idle slots while maintaining bounded ac. cess delay. Thus, ABROAD provides worst-case performance gua...

Automatic storage reclamation via reference counting has important advantages, but has always suffered from a major weakness due to its inability to reclaim cyclic data structures. We describe a novel cycle collection algorithm that is both concurrent — it is capable of collecting garbage even in the presence of simultaneous mutation — and localized — it never needs to perform a global search o...

The efficiency of language implementations is heavily influenced by the selected strategy for allocation and reclaim of memory. Memory allocation in a distributed shared memory (DSM) cluster poses additional challenges. Designing the DSM as a distributed heap is natural and relieves the application programmer from the burden of memory management. Garbage collection is incremental and refrains f...

Phylogenetic hypotheses generated from seven Drosophila mitochondrial genomes support a well-corroborated genealogy with a single evolutionary history. These mitochondrial data form a model system for investigating the efficiency of genes and accuracy of different tree-building methods in recovering a well-supported genealogy. We consider 15 genes (13 protein-coding and 2 rRNAs) and 83 tree-bui...

Access to professional midwifery care is a basic reproductive right that women in the United States have long been denied. Today American midwives are growing in numbers and in or gan i za tion al and legal strength. Their excellent outcomes and women’s high levels of satisfaction with their care are placing increasing pressure on the health care system to more fully incorporate them, but the b...

Sleep states are an important and wellunderstood feature of modern server and desktop CPUs that enable significant power savings during idle and partial load scenarios. Making proper decisions about how to use this feature remains a major challenge for operating systems since it requires a trade-off between potential energy-savings and performance penalties for long and short phases of inactivi...