The new ozone monitor. Final report (open access)

The new ozone monitor. Final report

This report describes the development of an invention for measuring the concentration of ozone by measuring the heat evolved when the ozone is catalyzed and converted back to oxygen. This ozone monitor evolved through a number of prototype as described in the final report. The final instrument is accurate, reliable and can be installed as a part of a control system. This instrument can be built and calibrated for any necessary specific ozone concentration range. This instrument uses inexpensive parts and would be simple to maintain. the manufacturing cost is less than any equally reliable and accurate ozone monitor presently available. The advantage this system has is that the ozone is directly measured as the temperature of the catalyst. It does not need UV lamps (which continually degrade in use and have a variable life) or use any chemistry where a material is continuously used up. This new ozone monitor directly measures the heat that is generated from the ozone as it converts back into oxygen as the gas mixture flows through the catalyst. The catalyst has theocratically an infinite life. It can clog if the system it is installed in, is dusty. But in systems that produce ozone, it …
Date: September 20, 1994
Creator: Karlson, E.L.
Object Type: Report
System: The UNT Digital Library
Angular biasing in implicit Monte-Carlo (open access)

Angular biasing in implicit Monte-Carlo

Calculations of indirect drive Inertial Confinement Fusion target experiments require an integrated approach in which laser irradiation and radiation transport in the hohlraum are solved simultaneously with the symmetry, implosion and burn of the fuel capsule. The Implicit Monte Carlo method has proved to be a valuable tool for the two dimensional radiation transport within the hohlraum, but the impact of statistical noise on the symmetric implosion of the small fuel capsule is difficult to overcome. We present an angular biasing technique in which an increased number of low weight photons are directed at the imploding capsule. For typical parameters this reduces the required computer time for an integrated calculation by a factor of 10. An additional factor of 5 can also be achieved by directing even smaller weight photons at the polar regions of the capsule where small mass zones are most sensitive to statistical noise.
Date: October 20, 1994
Creator: Zimmerman, G.B.
Object Type: Article
System: The UNT Digital Library
Environmental guidance regulatory bulletin (open access)

Environmental guidance regulatory bulletin

In the July 19, 1988, Federal Register [52 FR 27290] the Environmental Protection Agency (EPA) issued a final rule that conditionally exempted waste samples used in small-scale treatability studies from regulation under Subtitle C of the Resource Conservation and Recovery Act (RCRA). The final rule was intended to promote the development of new technologies for the treatment of hazardous wastes. However, in order to minimize danger to human health and the environment, it also imposed limitations and conditions on the amount of wastes that may be exempted from RCRA Subtitle C regulations for use in treatability studies. On July 7, 1993, EPA proposed amendments to the existing regulations that would increase the quantity limits for certain types of waste. In addition, EPA proposed to extend the period of time for which laboratories may conduct treatability studies involving bioremediation technologies from 1 year to 2 years. This bulletin summarizes the provisions of the revised rule.
Date: October 20, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Acceptance Test Report for 241-U compressed air system (open access)

Acceptance Test Report for 241-U compressed air system

This Acceptance Test Report (ATR) documents the results of acceptance testing of a newly upgraded compressed air system at 241-U Farm. The system was installed and the test successfully performed under work package 2W-92-01027.
Date: October 20, 1994
Creator: Freeman, R. D.
Object Type: Report
System: The UNT Digital Library
Development of an expert system for transportation of hazardous and radioactive materials (open access)

Development of an expert system for transportation of hazardous and radioactive materials

Under the sponsorship of the US Department of Energy`s (DOE`s) Transportation Management Division (EM-261), the Transportation Technologies Group at Oak Ridge National Laboratory (ORNL) has designed and developed an expert system prototype application of the hazardous materials transportation regulations. The objective of this task was to provide a proof-of-concept for developing a computerized expert system that will ensure straightforward, consistent, and error-free application of the hazardous materials transportation regulations. The expert system prototype entailed the analysis of what an expert in hazardous materials shipping information could/should do. From the analysis of the different features required for the expert system prototype, it was concluded that the developmental efforts should be directed to a Windows{trademark} 3.1 hypermedia environment. Hypermedia technology usually works as an interactive software system that gives personal computer users the ability to organize, manage, and present information in a number of formats--text, graphics, sound, and full-motion video.
Date: May 20, 1994
Creator: Ferrada, J. J.; Michelhaugh, R. D. & Rawl, R. R.
Object Type: Article
System: The UNT Digital Library