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You searched on: Author: william healy

Displaying records 11 to 20 of 35 records.
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11. Performance Measurements and Analysis of Low Data Rate Wireless Communication Under Interference Sources in Buildings
Published: 10/13/2010
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: Interference from collocated networks operating over the same frequency range becomes an increasingly severe problem as the number of networks overlapping geographically increases within commercial and residential buildings. This paper aims to highli ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905715

12. An Experimental Study of Interference Impacts on ZigBee-based Wireless Communications Inside Buildings
Published: 8/7/2010
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: ZigBee is a wireless technology developed as an open global standard to address the unique needs of low-cost, low-power wireless sensor networks. This standard takes full advantages of the IEEE 802.15.4 physical radio specification and operates in un ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905714

13. ZigBee-Wireless Mesh Networks for Building Automation and Control
Published: 4/12/2010
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: ZigBee is a wireless technology developed as an open global standard to address the unique needs of low-cost low-power wireless sensor networks. This standard takes full advantages of the IEEE 802.15.4 physical radio specification and operates in unl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905069

14. Wireless Sensor Network Performance Metrics for Building Applications
Published: 4/1/2010
Authors: Won Suk Jang, William M Healy
Abstract: Metrics are investigated to help assess the performance of wireless sensors in buildings. Wireless sensor networks present tremendous opportunities for energy savings and improvement in occupant comfort in buildings by making data about conditions a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901761

15. Measurement Science Roadmap for Net-Zero Energy Buildings
Series: Technical Note (NIST TN)
Report Number: 1660
Published: 3/18/2010
Authors: Joan Pellegrino, Arthur Hunter Fanney, Andrew Keith Persily, Piotr A Domanski, William M Healy, Steven T Bushby
Abstract: Buildings account for nearly a third of the world s energy use today, and this share is expected to rise along with population growth and levels of prosperity. In the United States, residential and commercial buildings consume about 40% of primary en ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905024

16. Measurement Challenges in Achieving Energy Monitoring Systems in Buildings
Series: Technical Note (NIST TN)
Report Number: 1656
Published: 3/3/2010
Author: William M Healy
Abstract: The benefits of energy conserving approaches in buildings are often not apparent to building occupants because of the insufficient feedback provided regarding energy consumption. A review of the literature suggests that energy feedback devices can p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904372

17. Assessment of Performance Metrics for Use of Wireless Sensor Networks in Buildings
Published: 9/30/2009
Authors: Won Suk Jang, William M Healy
Abstract: This paper is part of an effort to develop measurement systems and methods to better predict the performance of wireless sensor and control networks in building applications. Because of the variability in application requirements, the development of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902706

18. Practical Challenges in Wireless Sensor Network Use in Buildings
Series: Technical Note (NIST TN)
Report Number: 1604
Published: 9/30/2008
Authors: William M Healy, Won Suk Jang
Abstract: While wireless sensor network technology has advanced in recent years, potential users of these systems in buildings still have concerns with their use. This report summarizes results of a literature survey and interactions with building industry pr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861630

19. Wireless Sensor Networks as Part of a Web-Based Building Environmental Monitoring System
Published: 8/1/2008
Authors: Won Suk Jang, William M Healy, Miroslaw J Skibniewski
Abstract: The presented research shows how advanced wireless sensor technology can be used by engineers to monitor conditions in and around buildings.  The objective is split into three different tasks.  First, wireless sensor hardware is programmed ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861495

20. Effect of Temperature Stratification Near Heating Elements on the Measured Energy Factors of Electric Water Heaters
Published: 6/2/2008
Author: William M Healy
Abstract: Two different models of 190 L (50 gallon) residential electric water heaters were tested to investigate problems that arise in determining their energy efficiencies due to the steep temperature gradient near the lower heating element. This gradient ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861655



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