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Adaptive path planning: Algorithm and analysis

Description: To address the need for a fast path planner, we present a learning algorithm that improves path planning by using past experience to enhance future performance. The algorithm relies on an existing path planner to provide solutions difficult tasks. From these solutions, an evolving sparse work of useful robot configurations is learned to support faster planning. More generally, the algorithm provides a framework in which a slow but effective planner may be improved both cost-wise and capability-… more
Date: March 1, 1995
Creator: Chen, Pang C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Anchor Nodes Placement for Effective Passive Localization

Description: This paper discusses anchor nodes placement for effective passive localization. The authors show that, for effective passive localization, the optimal placement of the anchor nodes is at the center of the network in such a way that no three anchor nodes share linearity.
Date: 2011
Creator: Akl, Robert G.; Pasupathy, Karthikeyan & Haidar, Mohamad
Item Type: Refine your search to only Paper
Partner: UNT College of Engineering
open access

Beyond the CM-5: A case study in performance analysis for the CM-5, T3D, and high performance RISC workstations

Description: We present a comprehensive performance evaluation of our molecular dynamics code SPaSM on the CM-5 in order to devise optimization strategies for the CM-5, T3D, and RISC workstations. In this analysis, we focus on the effective use of the SPARC microprocessor by performing measurements of instruction set utilization, cache effects, memory access patterns, and pipeline stall cycles. We then show that we can account for more than 99% of observed execution time of our program. Optimization strateg… more
Date: March 22, 1995
Creator: Beazley, David M. & Lomdahl, Peter S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Building business from technology: The Sandia experience

Description: This paper describes New Ventures, a new initiative at Sandia National Laboratories that encourages the creation of new businesses based on laboratory technology as a timely, efficient means of technology transfer. Sandia`s New Ventures program has shown that a dedicated effort can produce significant results. In the three years prior to this program`s launch, just two ventures per year on average were created based on laboratory technology. By comparison, the New Ventures program has enabled 2… more
Date: July 1, 1995
Creator: Traylor, L.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

Call Admission Control Scheme for Arbitrary Traffic Distribution in CDMA Cellular Systems

Description: This presentation discusses call admission control (CAC). The authors define a set of feasible call configurations that results in a CAC algorithm that captures the effect of having an arbitrary traffic distribution and whose complexity scales linearly with the number of cells.
Date: September 2000
Creator: Akl, Robert G.; Hegde, Manju V.; Naraghi-Pour, Mort & Min, Paul S.
Item Type: Refine your search to only Presentation
Partner: UNT College of Engineering

CDMA Network Design

Description: This presentation gives an overview of code-division multiple access (CDMA) and inter-cell effects, network capacities, sensitivity analysis of base station locations, pilot-signal power, and transmission power of the mobiles, and concludes with numerical results.
Date: May 2002
Creator: Akl, Robert G.
Item Type: Refine your search to only Presentation
Partner: UNT College of Engineering

Cell Placement in a CDMA Network

Description: This presentation discusses research on cell placement in a CDMA network. In order to enable iterative cell placement the authors use a computationally efficient iterative process to calculate the inter-cell and intra-cell interferences as a function of pilot-signal power and base station location.
Date: September 1999
Creator: Akl, Robert G.; Hegde, Manju V.; Naraghi-Pour, Mort & Min, Paul S.
Item Type: Refine your search to only Presentation
Partner: UNT College of Engineering
open access

Computer-aided coordination and overcurrent protection for distribution systems

Description: Overcurrent protection and coordination studies for electrical distribution systems have become much easier to perform with the emergence of several commercially available software programs that run on a personal computer. These programs have built-in libraries of protective device time-current curves, damage curves for cable and transformers, and motor starting curves, thereby facilitating the design of a selectively coordinated protection system which is also well-protected. Additionally, des… more
Date: March 1, 1995
Creator: Tolbert, L.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Expanding the Search for Digital Preservation Solutions: Adopting PREMIS in Cultural Heritage Institutions

Description: Paper accompanying a poster presentation for the 2009 ACM/IEEE-CS Joint Conference on Digital Libraries. This paper provides some preliminary results on factors that affect the adoption of PREMIS (Preservation Metadata Implementation Strategies) in cultural heritage institutions.
Date: 2009
Creator: Alemneh, Daniel Gelaw
Item Type: Refine your search to only Paper
Partner: UNT Libraries
open access

Grid-based Coordinated Routing in Wireless Sensor Networks

Description: This paper discusses grid-based coordinated routing in wireless sensor networks and compares the energy available in the network over time for different grid sizes. The authors explore the quality of service of wireless sensor networks, how the coordinator nodes are elected, and the size of the grid area that will minimize the total energy consumption and extend the lifetime of the network.
Date: January 2007
Creator: Akl, Robert G. & Sawant, Uttara
Item Type: Refine your search to only Paper
Partner: UNT College of Engineering
open access

High-tech controls for energy and environment. Proceedings

Description: This document contains reports which were presented at a symposium for adaptive control systems. Topics were concerned with fuzzy logic, genetic algorithms, adaptive processes control, nonlinear component analysis, and processes control and efficiency applied to reducing nitrogen oxides emissions and to a column flotation unit. Individual reports (22 reports) are processed separately for the data bases.
Date: May 1, 1995
Creator: Biondo, S. J. & Drummond, C. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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