SCIENTIFIC AND TECHNICAL AEROSPACE REPORTS

A Biweekly Publication of the National Aeronautics and Space Administration
VOLUME 44, ISSUE 4 - February 24, 2006

32 COMMUNICATIONS AND RADAR
Includes radar; radio, wire, and optical communications; land and global communications; communications theory.

For related information see also 04 Aircraft Communications and Navigation; and 17 Space Communications, Spacecraft Communications, Command and Tracking; for search and rescue, see 03 Air Transportation and Safety; and 16 Space Transportation and Safety.

20060005677 Newcastle-upon-Tyne Univ., Newcastle, UK

Rules-Based SSDL Protocol Framework

Kuo, D.; Greenfield, P.; Parastatidis, S.; Webber, J.; Apr. 2005; 20 pp.; In English Report No.(s): PB2006-102748; CS-TR-902; Copyright; Avail.: National Technical Information Service (NTIS)

The Rules-based SSDL Protocol Framework defines a collection of XML Infoset element information items that can be used to describe the messaging behaviour of a service. The framework use conditions (Boolean expressions) to precisely specify when messages can be sent and received by a service. A distributed applications application protocol is defined by the messaging behaviour of interacting services participating in the distributed application. NTIS

Data Bases; Protocol (Computers); Soaps

20060005694 Government Accountability Office, Washington, DC, USA

Internet Management: Prevalence of False Contact Information for Registered Domain Names

Nov. 2005; 56 pp.; In English Report No.(s): PB2006-103474; GAO-06-165; No Copyright; Avail.: CASI: A04, Hardcopy

Individuals or organizations seeking to register the names of their Web sites may provide inaccurate contact information to registrars in order to hide their identities or to prevent members of the public from contacting them. Contact information is made publicly available on the Internet through a service known as Whois. Data accuracy in the Whois service can help law enforcement officials to investigate intellectual property misuse and online fraud, or identify the source of spam e-mail, and can help Internet operators to resolve technical network issues. GAO was asked, among other things, to (1) determine the prevalence of patently false or incomplete contact data in the Whois service for the .com, .org, and .net domains; (2) determine the extent to which patently false data are corrected within 1 month of being reported to ICANN; and (3) describe steps the Department of Commerce (Commerce) and ICANN have taken to ensure the accuracy of contact data in the Whois database. NTIS

Computer Networks; Internets; Websites

20060005710 Bureau of the Census, Washington, DC, USA

Economic Census 2002: Construction, Industry Series. Power and Communication Line and Related Structures Construction

Dec. 2004; 50 pp.; In English Report No.(s): PB2006-103095; EC02-23I-237130; No Copyright; Avail.: CASI: A03, Hardcopy

The economic census is the major source of facts about the structure and functioning of the nation's economy. It provides essential information for government, business, industry, and the general public. Title 13 of the USA Code (Sections 131, 191, and 224) directs the Census Bureau to take the economic census every 5 years, covering years ending in '2' and '7'. The economic census furnishes an important part of the framework for such composite measures as the gross domestic product estimates, input/output measures, production and price indexes, and other statistical series that measure short-term changes in economic conditions. NTIS

Census; Classifications; Communication Cables; Construction; Construction Industry; Economic Analysis

20060005756 Ottawa Univ., Ontario, Canada

Liebermann-Fried Model Parameters for Calculating Vapour-Liquid Equlibria of Oxygenate and Hydrocarbon Mixtures

Wang, Zhaohui; Lu, Benjamin C.-Y.; Peng, Ding-Yu; Lan, Christopher Q.; Journal of The Chinese Institute of Engineers. Special Issue: Chemical Engineering; Volume 28, No. 7; November 2005, pp. 1089-1105; In English; See also 20060005754; Copyright; Avail.: Other Sources

The Liebermann-Fried model parameters are reported for a total of 123 binary non-associated mixtures, covering ten oxygenates and 16 hydrocarbons.

They were determined from excess enthalpies of binary mixtures available in the literature at 298.15 K.

It is feasible to use these parameters for obtaining reasonably reliable vapour-liquid equilibria at constant temperature or at constant pressure for mixtures containing the considered binary mixtures. Author

Liquid-Vapor Equilibrium; Computation; Binary Mixtures

Source: NASA