Packed bed units generally, represent the most suitable storage units for air heating solar systems. In these systems the storage unit receives the heat from the collector during the collection period and discharges the heat to the building at the retrieval process. A method for sizing of packedbed storage in an air heating system is represented. The design is based on the K-S curves, which hav...

Content-addressability is a fundamental feature of human memory underlying many associative information retrieval tasks. In contrast to location-based memory devices, content-addressable memories require complex interactions between memory elements, which makes conventional computation paradigms difficult. Here we present a molecular computational model of content-addressable information storag...

In order to improve the retrieval performance of on-line information retrieval systems, an efficient index update scheme is proposed in this paper, which can provide better skipping function and further enhance both space and time efficiencies without inserting any additional auxiliary information. A uniform storage model (USM) is proposed to manage both short and long postings lists based on l...

We present an overview of a software system for storing, retrieving, georeferencing and visualizing boundary information obtained from Census 2000 Tiger/Line files, ESRI shape files or from image processing. Boundary information represents a vector data type as opposed to grid-based information denoted as a raster data type. In a Geospatial Information System (GIS) both data types are present. ...

Introduction. To store information at extremely high-density and data-rate, we propose to adapt, integrate, and extend the techniques developed by chemists and molecular biologists for the purpose of manipulating biological and other macromolecules. In principle, volumetric densities in excess of 10 bits/cm can be achieved when individual molecules having dimensions below a nanometer or so are ...