The production of chemicals from food processing wastes using a novel fermenter separator. Annual progress report, January 1993--March 1994 (open access)

The production of chemicals from food processing wastes using a novel fermenter separator. Annual progress report, January 1993--March 1994

The basic objective of this project is to convert waste streams from the food processing industry to usable fuels and chemicals using novel bioreactors. These bioreactors should allow economical utilization of waste (whey, waste sugars, waste starch, bottling wastes, candy wastes, molasses, and cellulosic wastes) by the production of ethanol, acetone/butanol, organic acids (acetic, lactic, and gluconic), yeast diacetyl flavor, and antifungal compounds. Continuous processes incorporating various processing improvements such as simultaneous product separation and immobilized cells are being developed to allow commercial scale utilization of waste stream. The production of ethanol by a continuous reactor-separator is the process closest to commercialization with a 7,500 liter pilot plant presently sited at an Iowa site to convert whey lactose to ethanol. Accomplishments during 1993 include installation and start-up of a 7,500 liter ICRS for ethanol production at an industry site in Iowa; Donation and installation of a 200 liter yeast pilot Plant to the project from Kenyon Enterprises; Modeling and testing of a low energy system for recovery of ethanol from vapor is using a solvent absorption/extractive distillation system; Simultaneous saccharification/fermentation of raw corn grits and starch in a stirred reactor/separator; Testing of the ability of `koji` process to ferment raw …
Date: March 15, 1994
Creator: Dale, M. C.; Venkatesh, K. V.; Choi, H.; Salicetti-Piazza, L.; Borgos-Rubio, N.; Okos, M. R. et al.
Object Type: Report
System: The UNT Digital Library
Space sensors for global change (open access)

Space sensors for global change

Satellite measurements should contribute to a fuller understanding of the physical processes behind the radiation budget, exchange processes, and global change. Climate engineering requires global observation for early indications of predicted effects, which puts a premium on affordable, distributed constellations of satellites with effective, affordable sensors. Defense has a requirement for continuous global surveillance for warning of aggression, which could evolve from advanced sensors and satellites in development. Many climate engineering needs match those of defense technologies.
Date: February 15, 1994
Creator: Canavan, G. H.
Object Type: Article
System: The UNT Digital Library
Secondary oil recovery from selected Carter sandstone oilfields -- Black Warrior Basin, Alabama. Quarterly technical progress report, September 1--November 30, 1993 (open access)

Secondary oil recovery from selected Carter sandstone oilfields -- Black Warrior Basin, Alabama. Quarterly technical progress report, September 1--November 30, 1993

Anderman/Smith Operating Co. is operating a secondary oil recovery project involving the Carter sandstone in northwest Alabama. The project objectives are: (1) to increase the ultimate economic recovery of oil from the Carter reservoirs, thereby increasing domestic reserves and lessening US dependence on foreign oil; (2) to extensively model, test, and monitor the reservoirs so their management is optimized; and (3) to assimilate and transfer the information and results gathered to other US oil companies to encourage them to attempt similar projects. As a result of waterflood operations at the Central Buff unit, oil production from the Fowler Brasher 7--9 well increased to 40--50 stb/d in late October, and averaged about 45 stb/d in November with no measurable water production. Production at the Fowler Dodson 8--12 was more erratic during the same period. In October, the oil rate for this well increased to nearly 17 stb/d with no reported water production. However, in November the oil production rate declined to about 9 stb/d with an associated average water rate of nearly 17 bpd. Water analysis showed that this produced water was significantly fresher than the connate water produced prior to waterflood operations. This provides evidence for early breakthrough of water …
Date: January 15, 1994
Creator: Anderson, J. C.
Object Type: Report
System: The UNT Digital Library
What can we do about it? (open access)

What can we do about it?

The requirements for intercept have been defined. Most can be met with existing technology. Them are significant uncertainties in coupling efficiency and fragmentation limits. The best approach depends on warning, NEO size and composition, and cost. Optimal defenses generally involve both detection and defense. They are effective to large diameters and justify expenditures on the order of $50-100M/yr. Flyby and landing precursor experiments are scientifically justified. Coupling and deflection experiments are also needed and feasible.
Date: February 15, 1994
Creator: Canavan, G. H.
Object Type: Article
System: The UNT Digital Library
Long-range mesoscale modeling of pollutant transport for the European Tracer EXperiment (ETEX) (open access)

Long-range mesoscale modeling of pollutant transport for the European Tracer EXperiment (ETEX)

The European Tracer EXperiment (ETEX). The ETEX program involves two tracer experiments each comprising from distinct elements: (a) long-range atmospheric tracer release, sampling, and analysis; (b) real-time model operation and evaluation; and (c) post-release model operation and evaluation. The experiments consist of the release of a non-buoyant tracer from a location in western Europe and sampling of the atmospheric concentration by a network of about 200 stations located in 17 countries. Twenty-three institutions from 19 countries are expected to participate in the real-time modeling program including the Savannah River Technology Center (SRTC) of the US Department of Energy`s Savannah River Site (SRS). Notification of the release will occur only after the initiation of the release. Participants will be required to provide 60-h concentration predictions as quickly a possible (within 6 h of being notified) and updated predictions every 12 h after the notification. In 1993 two ``dry runs`` for the real-time modeling component of the program were conducted; the actual tracer release experiment is scheduled for the fall of 1994. This paper describes the modeling approach employed by SRTC and presents some of the results of the second ETEX real-time dry run.
Date: April 15, 1994
Creator: Fast, J. D.; Griggs, D. P. & Addis, R. P.
Object Type: Article
System: The UNT Digital Library
Radiation Recordkeeping Practices at DOE Facilities (open access)

Radiation Recordkeeping Practices at DOE Facilities

In order to evaluate the radiation recordkeeping practices at DOE facilities, a questionnaire was sent to DOE and DOE contractor facilities which requested information concerning the record keeping systems. The questionnaire was sent to the DOE/DOE contractor facilities via DOE/HQ and the respective field offices. The questionnaire stipulated that at multiple contractor sites, only those facilities who kept the records should respond to the questionnaire; however, those responding should indicate the facilities for which they maintained records.
Date: March 15, 1994
Creator: Traub, R. J.
Object Type: Report
System: The UNT Digital Library
Conceptual design for the STAR barrel electromagnetic calorimeter support rings (open access)

Conceptual design for the STAR barrel electromagnetic calorimeter support rings

The STAR electromagnetic calorimeter (EMC) will be used to measure the energy of photons and electrons from collisions of beams of particles in the RHIC accelerator under construction at Brookhaven National Laboratory. The present design is documented in the EMC Conceptual Design Report, and consists of a cylindrical barrel and two flat endcap calorimeter sections. The barrel EMC will consist of 120 modules, each subtending 6{degrees} in azimuthal angle about the beam ({phi}), and half the barrel length. Each module will be subdivided into ``towers`` of alternating scintillator and lead, which project to the nominal interaction point. There is a strong coupling between the designs for the EMC and for the conventional solenoidal magnet, which will be located immediately outside the barrel EMC. For example, the inner radius of the magnet must be minimized to lower costs and to reduce the STAR detector`s outer diameter to fit within constraints of the existing detector building. This condition requires the calorimeter modules to be just thick enough to accomplish physics goals and to support their weight with small deflections. This note describes progress in the design of the EMC support rings. Several ring designs and methods of construction have been considered. In …
Date: February 15, 1994
Creator: Bielick, E.; Fornek, T.; Spinka, H. & Underwood, D.
Object Type: Report
System: The UNT Digital Library
Lawrence Berkeley Laboratory FY 1994 site development plan (open access)

Lawrence Berkeley Laboratory FY 1994 site development plan

This plan describes the mission, workload, site population, site and regional information, program projections and requirements, master plan, five-year construction plan, and management considerations.
Date: April 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The development and applications of biomarkers (open access)

The development and applications of biomarkers

This report is a compilation of submitted abstracts of scientific papers presented at the second Department of Energy-supported workshop on the use and applications of biomarkers held in Santa Fe, New Mexico, from April 26--29, 1994. The abstracts present a synopsis of the latest scientific developments in biomarker research and how these developments meet with the practical needs of the occupational physician as well as the industrial hygienist and the health physicist. In addition to considering the practical applications and potential benefits of this promising technology, the potential ethical and legal ramifications of using biomarkers to monitor workers are discussed. The abstracts further present insights on the present benefits that can be derived from using biomarkers as well as a perspective on what further research is required to fully meet the needs of the medical community.
Date: April 15, 1994
Creator: Normandy, J. & Peeters, J.
Object Type: Article
System: The UNT Digital Library
Bioconversion of coal derived synthesis gas to liquid fuels. Quarterly technical progress report, January 1, 1994--March 31, 1994 (open access)

Bioconversion of coal derived synthesis gas to liquid fuels. Quarterly technical progress report, January 1, 1994--March 31, 1994

The overall objective of the project is to develop an integrated two-stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first steps, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol.
Date: April 15, 1994
Creator: Jain, M. K.; Worden, R. M. & Grethlein, H.
Object Type: Report
System: The UNT Digital Library
Solar collector manufacturing activity 1993 (open access)

Solar collector manufacturing activity 1993

The report presents national and State-level data on the U.S. solar thermal collector and photovoltaic cell and module manufacturing industry.
Date: August 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Energy Analysis and Diagnostic Centers: A program of direct energy conservation assistance for small and medium-size manufacturers. Quarterly progress report, June 1994 (open access)

Energy Analysis and Diagnostic Centers: A program of direct energy conservation assistance for small and medium-size manufacturers. Quarterly progress report, June 1994

During the quarter ending June 30, 1994, the EADCs in the Western Region performed a total of 109 energy audits and six industrial assessments under the contract continuation beginning October 1, 1993. Energy audit reports were issued to 90 manufacturers during the past quarter. Industrial assessment reports were issued to three clients.
Date: August 15, 1994
Creator: Kirsch, F. W.
Object Type: Report
System: The UNT Digital Library
Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 27, April 1, 1994--June 30, 1994 (open access)

Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 27, April 1, 1994--June 30, 1994

The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal-fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone-fired. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions through a combination of two technologies, gas reburning and sorbent injection.
Date: July 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Petroleum marketing monthly, August 1994 (open access)

Petroleum marketing monthly, August 1994

The Petroleum Marketing Monthly (PMM) provides information and statistical data on a variety of crude oils and refined petroleum products. The publication presents statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysts, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the f.o.b. and landed cost of imported crude oil, and the refiners` acquisition cost of crude oil. Refined petroleum product Sales data include motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane. The Petroleum Marketing Division, Office of Oil and Gas, Energy Information Administration ensures the accuracy, quality, and confidentiality of the published data in the Petroleum Marketing Monthly.
Date: August 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Highly dispresed catalysts for coal liquefaction. Quarterly report No. 10, November 23, 1993--February 22, 1994 (open access)

Highly dispresed catalysts for coal liquefaction. Quarterly report No. 10, November 23, 1993--February 22, 1994

The objectives of this project are to study the effect of pretreatment methods on the two-stage liquefaction process. In particular, the effects of dispersed catalysts and carbon monoxide atmospheres on a coal liquefaction process. The project is divided into three technical tasks. Task 1 and 2 deal with the analyses and liquefaction experiments, respectively, whereas Task 3 deals with the economic impact of utilizing the pretreatment methods. This quarter the authors concentrated on Tasks 1 and 2, which are summarized below.
Date: April 15, 1994
Creator: Hirschon, A. S. & Wilson, R. B.
Object Type: Report
System: The UNT Digital Library
Radioactive waste storage issues (open access)

Radioactive waste storage issues

In the United States we generate greater than 500 million tons of toxic waste per year which pose a threat to human health and the environment. Some of the most toxic of these wastes are those that are radioactively contaminated. This thesis explores the need for permanent disposal facilities to isolate radioactive waste materials that are being stored temporarily, and therefore potentially unsafely, at generating facilities. Because of current controversies involving the interstate transfer of toxic waste, more states are restricting the flow of wastes into - their borders with the resultant outcome of requiring the management (storage and disposal) of wastes generated solely within a state`s boundary to remain there. The purpose of this project is to study nuclear waste storage issues and public perceptions of this important matter. Temporary storage at generating facilities is a cause for safety concerns and underscores, the need for the opening of permanent disposal sites. Political controversies and public concern are forcing states to look within their own borders to find solutions to this difficult problem. Permanent disposal or retrievable storage for radioactive waste may become a necessity in the near future in Colorado. Suitable areas that could support - a nuclear storage/disposal …
Date: August 15, 1994
Creator: Kunz, D. E.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Evaluation of Gas-Reburning and Low NO{sub x} Burners on a wall fired boiler. [Quarterly] technical progress report No. 15, April 1--June 30, 1994 (open access)

Evaluation of Gas-Reburning and Low NO{sub x} Burners on a wall fired boiler. [Quarterly] technical progress report No. 15, April 1--June 30, 1994

Clean Coal Technology (CCT) implies the use of coal in an environmentally acceptable manner. Coal combustion results in the emission of oxides of nitrogen (No), which are precursors of both acid rain and ozone formation. The primary objective of this CCT project is to evaluate the use of Gas Reburning and Low NO{sub x} Burners (GR-LNB) for NO{sub x} emission control from a wall fired boiler. It is anticipated that, if the demonstration is successful, the GR-LNB technology could become commercialized during the 1 990` s and will be capable of (1) achieving significant reduction in the emissions of nitrogen oxides and sulfur dioxide (another acid rain precursor) from existing facilities to minimize environmental impacts such as transboundary and interstate pollution and/or (2) providing for future energy needs in an environmentally acceptable manner. Low NO{sub x} burners are designed to delay the mixing of the coal fuel with combustion air to minimize the NO{sub x} formation. Typically, one may obtain up to 50% reduction in NO{sub x} emissions through the use of LNB. For LNB applications, the technology is developed and a number of LNB designs are commercially available. With GR, about 80--85 percent of the coal fuel is fired …
Date: July 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Hanford spent fuel inventory baseline (open access)

Hanford spent fuel inventory baseline

This document compiles technical data on irradiated fuel stored at the Hanford Site in support of the Hanford SNF Management Environmental Impact Statement. Fuel included is from the Defense Production Reactors (N Reactor and the single-pass reactors; B, C, D, DR, F, H, KE and KW), the Hanford Fast Flux Test Facility Reactor, the Shipping port Pressurized Water Reactor, and small amounts of miscellaneous fuel from several commercial, research, and experimental reactors.
Date: July 15, 1994
Creator: Bergsman, K. H.
Object Type: Report
System: The UNT Digital Library
Differential geometry on Hopf algebras and quantum groups (open access)

Differential geometry on Hopf algebras and quantum groups

The differential geometry on a Hopf algebra is constructed, by using the basic axioms of Hopf algebras and noncommutative differential geometry. The space of generalized derivations on a Hopf algebra of functions is presented via the smash product, and used to define and discuss quantum Lie algebras and their properties. The Cartan calculus of the exterior derivative, Lie derivative, and inner derivation is found for both the universal and general differential calculi of an arbitrary Hopf algebra, and, by restricting to the quasitriangular case and using the numerical R-matrix formalism, the aforementioned structures for quantum groups are determined.
Date: December 15, 1994
Creator: Watts, P.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Explosion bonding of dissimilar materials for fabricating APS front end components: Analysis of metallurgical and mechanical properties and UHV applications (open access)

Explosion bonding of dissimilar materials for fabricating APS front end components: Analysis of metallurgical and mechanical properties and UHV applications

The front end beamline section contains photon shutters and fixed masks. These components are made of OFHC copper and GlidCOP AL-15. Stainless steels (304 or 316) are also used for connecting photon shutters and fixed masks to other components that operate in the ultrahigh vacuum system. All these dissimilar materials need to be joined together. However, bonding these dissimilar materials is very difficult because of their different mechanical and thermal properties and incompatible metallurgical properties. Explosion bonding is a bonding method in which the controlled energy of a detonating explosive is used to create a metallurgical bond between two or more similar or dissimilar materials. No intermediate filler metal, for example, a brazing compound or soldering alloy, is needed to promote bonding, and no external heat need be applied. A study of the metallurgical and mechanical properties and YGV applications of GlidCop AL-15, OFHC copper, and 304 stainless steel explosion-bonded joints has been done. This report contains five parts: an ultrasonic examination of explosion-bonded joints and a standard setup; mechanical-property and thermal-cycle tests of GlidCop AL-15/304 stainless steel explosion-bonded joints; leak tests of a GlidCop AL-15/304 stainless steel explosion-bonded interfaces for UHV application; metallurgical examination of explosion-bonded interfaces and failure …
Date: June 15, 1994
Creator: Li, Yuheng; Shu, Deming & Kuzay, T. M.
Object Type: Report
System: The UNT Digital Library
[Trip report of travel to Las Vegas to consider specification for the Integrated Data System (IDS) with administrative memos]. Volume 1, FY92--FY93 (open access)

[Trip report of travel to Las Vegas to consider specification for the Integrated Data System (IDS) with administrative memos]. Volume 1, FY92--FY93

This document is a compilation of travel reports and memorandums that are the results of planning between Los Alamos National Laboratory and Computer Applications Group, Inc.
Date: December 15, 1994
Creator: Hall, J.
Object Type: Report
System: The UNT Digital Library
Progress toward uranium scrap recycling via electron beam cold hearth refining (open access)

Progress toward uranium scrap recycling via electron beam cold hearth refining

A 250 kW electron beam cold hearth refining (EBCHR) melt furnace at Lawrence Livermore National Laboratory (LLNL) has been in operation for over a year producing 5.5 in.-diameter ingots of various uranium alloys. Production of in-specification uranium-6%-niobium (U-6Nb) alloy ingots has been demonstrated using Virgin feedstock. A vibratory scrap feeder has been installed on the system and the ability to recycle chopped U-6Nb scrap has been established. A preliminary comparison of vacuum arc remelted (VAR) and electron beam (EB) melted product is presented.
Date: December 15, 1994
Creator: McKoon, R.H.
Object Type: Report
System: The UNT Digital Library
FY94 CAG trip reports, CAG memos and other products: Volume 2. Final report (open access)

FY94 CAG trip reports, CAG memos and other products: Volume 2. Final report

The Yucca Mountain Site Characterization Project (YMP) of the US DOE is tasked with designing, constructing, and operating an Exploratory Studies Facility (ESF) at Yucca Mountain, Nevada. The purpose of the YMP is to provide detailed characterization of the Yucca Mountain site for the potential mined geologic repository for permanent disposal of high-level radioactive waste. Detailed characterization of properties of the site are to be conducted through a wide variety of short-term and long-term in-situ tests. Testing methods require the installation of a large number of test instruments and sensors with a variety of functions. These instruments produce analog and digital data that must be collected, processed, stored, and evaluated in an attempt to predict performance of the repository. The Integrated Data and Control System (IDCS) is envisioned as a distributed data acquisition that electronically acquires and stores data from these test instruments. IDCS designers are responsible for designing and overseeing the procurement of the system, IDCS Operation and Maintenance operates and maintains the installed system, and the IDCS Data Manager is responsible for distribution of IDCS data to participants. This report is a compilation of trip reports, interoffice memos, and other memos relevant to Computer Applications Group, Inc., work …
Date: December 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
A study of the Teachers` Academy for Mathematics and Science (open access)

A study of the Teachers` Academy for Mathematics and Science

The Teachers` Academy for Mathematics and Science in Chicago (TAMS) is a freestanding institution founded in 1989 by scientists and a variety of other stakeholders, to advance the systemic reform of mathematics and science education in Chicago`s public schools. It focuses on the ``re-tooling`` of its elementary level teachers. The TAMS program, which has been funded in part by the DOE, contributes to strategic goals two through five of the Office of University and Science Education (OUSE). This evaluation of TAMS by the National Center for Improving Science Education is primarily a qualitative study that summarizes the history and current status of the organization and its programs. Data was obtained through extensive interviews, observations, and document review, using a framework of templates to guide data collection and analyses. The findings are organized around a series of lessons learned from the first three years of TAMS and conclusions about its current status.
Date: September 15, 1994
Creator: Brett, B.; Scheirer, M.A. & Raizen, S.
Object Type: Report
System: The UNT Digital Library