Distributed storage systems provide large-scale reliable data storage services by spreading redundancy across a large group of storage nodes. In such a large system, node failures take place on a regular basis. When a storage node breaks down, a replacement node is expected to regenerate the redundant data as soon as possible in order to maintain the same level of redundancy. Previous results h...

Department of Forestry and Natural Resources, Purdue University, West Lafayette, Indiana, USA; Department of Biological Sciences, Purdue University, West Lafayette, Indiana, USA; Department of Computer Science, Purdue University, West Lafayette, Indiana, USA; Markey Center of Structural Biology, Purdue University, West Lafayette, Indiana, USA; USDA Forest Service Northern Research Station Hardw...

The conservation of genetic resources in cryocollections requires reliable protocols for the cryopreservation and regeneration preserved material. With Ulmus glabra, thawed buds by vitro organogenesis has suffered from low shoot growth high contamination rates. dehydration before improved rate ameliorated cultures initiated buds, although degree success varied depending on donor tree.

Urban forests adjacent to interstate corridors are understudied ecosystems across cities. Despite their small area, these forests may be strategically located to provide large ecosystem services due to their ability to act as a barrier against air pollutants and noise as well as to provide flood control. The woody vegetation composition and structure of forests adjacent to urban interstates is ...

The forest understory is made up of resident and transitory species and can be much richer than the canopy. With the purpose to describe the contribution of these groups to the woody understory, five Atlantic Forest fragments were selected and studied in Northeastern Brazil. In order to analyze the understory's structure, the sample included woody individuals with circumference at breast height...

We quantified structural attributes in three alluvial flat old-growth coast redwood stands. Tree size parameters and occurrences of distinctive features (e.g., burls, goose pens) were similar between stands. Occurrence of distinctive features was greater among larger trees. Tree sizefrequency distributions conformed to a reverse-J diameter distribution. The range of tree sizes was similar betwe...

As group applications become more prevalent, efficient network utilization becomes a major concern. Multicast transmission may use network bandwidth more efficiently than multiple point-to-point connections. Many algorithms have been proposed for generating " good " multicast trees, however, these algorithms have significant limitations for networks containing mobile hosts. Existing algorithms ...

Browsing of tree saplings by deer hampers forest regeneration in mixed forests across Europe and North America. It is well known that tree species are differentially affected by deer browsing, but little is known about how different facets of diversity, such as species richness, identity, and composition, affect browsing intensity at different spatial scales. Using forest inventory data from th...

Integrated spectral and spatial analysis of high-resolution multispectral imagery provides a means to assess forest structural condition in a variety of applications. This paper describes a research program to develop methods for characterizing forest structural condition in assessment of damage due to anthropogenic and natural factors and in regeneration assessment. Three applications are pres...

The absence of introduced browsing animals from Bench Island, located 5 km east of Stewart Island, provides the opportunity to compare forest structure and regeneration in these two areas of similar vegetation with and without browsing animals. The population structures of the main canopy tree species, rata (Metrosideros umbellata), kamahi (Weinmannia racemosa), and rimu (Dacrydium cupressinum)...