Search Results

A New Wireless Sensor Node Design for Program Isolation and Power Flexibility

Description: Over-the-air programming systems for wireless sensor networks have drawbacks that stem from fundamental limitations in the hardware used in current sensor nodes. Also, advances in technology make it feasible to use capacitors as the sole energy storage mechanism for sensor nodes using energy harvesting, but most current designs require additional electronics. These two considerations led to the design of a new sensor node. A microcontroller was chosen that meets the Popek and Goldberg virtualization requirements. The hardware design for this new sensor node is presented, as well as a preliminary operating system. The prototypes are tested, and demonstrated to be sustainable with a capacitor and solar panel. The issue of capacitor leakage is considered and measured.
Date: December 2009
Creator: Skelton, Adam W.
Partner: UNT Libraries

Efficient Energy Saving Scheme for On-Chip Caches

Description: This paper discusses efficient energy saving techniques for on-chip caches, focusing especially on drowsy cache schemes.
Date: 2002
Creator: Gomathisankaran, Mahadevan & Somani, Arun
Item Type: Paper
Partner: UNT College of Engineering

Leakage from High-Pressure Natural-Gas Transmission Lines

Description: From Scope of Report: "With the cooperation of the Natural Gas Association of America, therefore, the Bureau of Mines has made a scientific study of leakage losses. The fundamental purpose of a study has been to gather information that will aid operating companies in their leakage problems and as a result to conserve natural gas for domestic and industrial consumption instead of allowing it dissipated into the air."
Date: 1928
Creator: Rawlins, E. L. & Wosk, L. D.
Item Type: Report
Partner: UNT Libraries Government Documents Department