Many potential applications have been proposed for carbon nanotubes, including conductive and high-strength composites; energy storage and energy conversion devices; sensors; field emission displays and radiation sources; hydrogen storage media; and nanometer-sized semiconductor devices, probes, and interconnects. Some of these applications are now realized in products. Others are demonstrated ...

Data backup and archiving is an important aspect of business processes to avoid loss due to system failures and natural calamities. As the amount of data and applications grow in number, concerns regarding cost efficient data preservation force organizations to scout for inexpensive storage options. Addressing these concerns, we present Tape Cloud, a novel, highly cost effective, unified storag...

......Many applications today, used by millions of people around the clock, store and process massive data sets. These data-centric computing applications include transaction processing, search engines, and e-mail services as well as newer types of applications, such as social networking and photo and video sharing. The amount of data these applications must handle is growing tremendously, and ...

Object-based storage is the natural evolution of the block storage interface, aimed at efficiently and effectively meeting the performance, reliability, security, and service requirements demanded by current and future applications. The object-based storage interface provides an organizational container, called an object, into which higher-level software (e.g., file systems, databases, and user...

INTRODUCTION We are interested in designing mobile social computing systems for the next billion users. Our aim is to create systems that are appropriate (and appropriable) within their social, cultural, infrastructural, economic, and political settings. In this paper, we discuss our emerging work on mobile applications and the social computing approach that underlies it. We note the growing in...

The development in the last decade of methodology for measuring and scaling household food insecurity and hunger in U.S. populations makes possible systematic examination of the ways in which hunger and food insecurity affect individuals and families. The impact on children has always been of primary concern for policy, advocacy, and science because of the vulnerability of children to long-term...

Storage Intensive Supercomputing The storage-intensive supercomputing (SISC) project [1] at LLNL is a research effort that is currently investigating hardware architectures for improving the performance of large, data-intensive applications. In order to achieve nextgeneration performance goals for these applications, it is necessary to consider system architectures that employ both computationa...

In large scale data centers, controlling tail latencies of IO requests keeps storage performance bounded and predictable, which is critical for infrastructure resource planning. This work provides a transparent mechanism for applications to pass prioritized IO commands to storage devices. As a consequence, we observe much shorter tail latencies for prioritized IO while impacting nonprioritized ...

The use of hydroelectric pump-storage system at large scale, MW-size systems, is already widespread around the world. Designed for large scale applications, pump-storage station can be scaled-down for small, remote residential applications. Given the cost and complexity associated with installing a substation further than 100 miles from the main transmission lines, a remote, independent and sel...

Cloud computing promises easy development and deployment of large-scale, fault tolerant, and highly available applications. Cloud storage services are a key enabler of this, because they provide reliability, availability, and fault tolerance via internal mechanisms that developers need not reason about. Despite this, challenges remain for distributed cloud applications developers. They still ne...