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in subjects: "Organoleptic Properties"

open access

Validation and sensitivity of a simulated photograph technique for visibility modeling

The Los Alamos Scientific Laboratory (LASL) visibility model is capable of producing simulated before and after pictures that illustrate visual effects of smoke plumes. Although the model has been under development for a few years, until recently there had been very little testing of the model against field experience or testing of sensitivity of the model results to numerical approximations used in the model. Further validation and sensitivity testing of the LASL model began in late 1979. The … more

Date: January 1, 1980

Creator: Williams, M.; Chan, L.Y. & Lewis, R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Resource, technology, and environment at the geysers

A general review, description, and history of geothermal development at the Geysers is presented. Particular emphasis is placed on environmental impacts of development of the area. The discussion is presented under the following chapter titles: introduction; energy, enthalpy and the First Law; vapor-producing geothermal reservoirs--review and models; geothermal; entropy and the Second Law; power plants--basics; H/sub 2/S emissions; hydrogen sulfide--possible health effects and odor; other emiss… more

Date: June 1, 1977

Creator: Weres, O.; Tsao, K. & Wood, B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Environmental monitoring final report: groundwater chemical analyses

This report presents the results of analyses of groundwater qualtiy at the SRC-I Demonstration Plant site in Newman, Kentucky. Samples were obtained from a network of 23 groundwater observation wells installed during previous studies. The groundwater was well within US EPA Interim Primary Drinking Water Standards for trace metals, radioactivity, and pesticides, but exceeded the standard for coliform bacteria. Several US EPA Secondary Drinking Water Standards were exceeded, namely, manganese, co… more

Date: February 1, 1984

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Evaluation of oxidation techniques for preparing bioassay and environmental samples for liquid scintillation counting

In environmental and biological monitoring for carbon-14 and tritium, the presence of color and chemical quenching agents in the samples can degrade the efficiency of liquid scintillation counting. A series of experiments was performed to evaluate the usefulness, under routine conditions, of first oxidizing the samples to improve the counting by removing the color and quenching agents. The scintillation counter was calibrated for the effects of quenching agents on its counting efficiency. Oxidi… more

Date: October 1, 1979

Creator: Miller, H.H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Accelerated aging of cellulose by laser irradiation. [Development for Shroud of Turin]

We describe a new technique for studying thermally-induced chemical transformations in cellulose developed for the Shroud of Turin. The apparatus consists of a carbon dioxide laser for heating, an infrared thermometer, and an optical reflectance spectrometer for tracking the progressive discoloration of the sample. To illustrate the technique, we present measurements from a single piece of sample linen along five isotherms in the range 200-290/degree/C. The results are explained in terms of fir… more

Date: January 1, 1988

Creator: Jackson, J. P.; Arthurs, E.; Schwalbe, L. A.; Sega, R. M.; Windish, D.; Long, W. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Cooling our communities: A guidebook on tree planting and light-colored surfacing

This book is a practical guide that presents the current state of knowledge on potential environmental and economic benefits of strategic landscaping and altering surface colors in our communities. The guidebook, reviews the causes, magnitude, and impacts of increased urban warming, then focuses on actions by citizens and communities that can be undertaken to improve the quality of our homes and towns in cost-effective ways.

Date: January 1, 1992

Creator: Akbari, H.; Davis, S.; Huang, J. (eds.) (Lawrence Berkeley Lab., CA (United States)); Dorsano, S. (ed.) (The Bruce Co., (United States)) & Winnett, S. (ed.) (Environmental Protection Agency, Washington, DC (United States). Climate Change Div.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Reggeon Field Theory and the phases of QCD

We propose a Reggeon Field Theory phase diagram involving Sub-critical and Super-critical Pomeron behavior and the Expanding Disc. We describe the derivation of Reggeon Field Theory from QCD using infra-red analysis of the reggeon diagrams of the spontaneously broken theory. Matching the Reggeon Field Theory phase-diagram to that of lattice QCD with many fermions has significant implications for the chiral properties of continuum QCD when the number of flavors is less than the maximum allowed b… more

Date: July 21, 1987

Creator: White, A.R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Direct enzymatic extraction of starch from corn as an energy-saving alternative to production of high-fructose syrup. Quarterly progress report, July 1, 1981-September 30, 1981

Progress is reported on the project to extract starch from corn efficiently. The procedure for removing organic impurities from corn syrup is described. Data are graphically shown of the ultraviolet scan of the dirty and clean syrup. Impurity in the glucose syrup could be reduced from 0.51 gm/ml level using the sedimental method down to 0.23 mg/ml by filtering the syrup through diatomic earth filter. The industrial products contain about 0.37 mg/ml (industrial product also filtered through diat… more

Date: January 1, 1981

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Turbidity variations in the Lower Columbia Basin

Turbidity variations in the Lower Columbia Basin appear to be related to agricultural activity and synoptic meteorological conditions. Changes in particulate size distribution are apparent in the turbidity color dependence. Turbidities at Hanford have shown considerable variation since 1974.

Date: January 1, 1979

Creator: Laulainen, N. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Effect of chain rigidity on conductivity of conjugated polymers

There are several ways to introduce processability to conjugated polymers, and one of them is discussed here. The basic approach involves the introduction of flexible centers in a conjugated backbone with a periodicity that allows the existence of conjugated sequences characterized by an electron mobility high enough to result in electronic conduction upon oxidation or reduction. The process consists of the use of AsF/sub 5/ as a polymerization catalyst, and AsF/sub 3/ as a non-conventional med… more

Date: January 1, 1986

Creator: Aldissi, M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Location of odor sources and the affected population in Imperial County, California

This report is divided into four sections. The first two sections contain general background information on Imperial County. The third section is a general discussion of odor sources in Imperial County, and the fourth maps the specific odor sources, the expected areas of perception, and the affected populations. this mapping is done for the Imperial Valley and each of the four Imperial County KGRA's (Known Geothermal Resource Areas) where odor from the development of the geothermal energy may a… more

Date: August 1, 1981

Creator: Hahn, J. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Treatment of biomass-gasification wastewaters by wet-air oxidation

Production of synthetic natural gas from gasification of biomass results in the generation of a high-strength wastewater that is difficult to treat by conventional means. This study investigated the use of wet air oxidation (WAO) as a treatment method for these wastewaters. A literature review was conducted to identify the suitability of WAO for the treatment of high-strength industrial wastewaters and to determine typical operating conditions for such treatment. Data presented in the literatur… more

Date: September 1, 1981

Creator: English, C.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Preliminary field demonstration of a fiber-optic TCE sensor. [Trichloroethylene (TCE)]

We have developed a differential-absorption fiber-optic sensor for use in groundwater and vadose zone monitoring of certain volatile organochlorines. The principle of detection is a quantitative, irreversible chemical reaction that forms visible light-absorbing products. The sensor has been evaluated against gas chromatographic (GC) standard measurements and has demonstrated accuracy and sensitivity sufficient for the environmental monitoring of trace levels of trichloroethylene (TCE) and chlor… more

Date: February 1, 1991

Creator: Angel, S.M.; Langry, K.; Roe, J.; Colston, B.W. Jr.; Daley, P.F. & Milanovich, F.P.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Imperial County baseline health survey potential impact of geothermal energy

The survey purpose, methods, and statistical methods are presented. Results are discussed according to: area differences in background variables, area differences in health variables, area differences in annoyance reactions, and comparison of symptom frequencies with age, smoking, and drinking. Included in appendices are tables of data, enumeration forms, the questionnaire, interviewer cards, and interviewer instructions. (MHR)

Date: June 1, 1981

Creator: Deane, M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Human health implications of geothermal energy

Environmental problems consist of the release of noncondensable gases and vapors, disposal of saline fluids, possible land subsidence and enhanced seismicity, noise, accidents such as well blowouts, and socioeconomic impacts. The most important issue related to human health is believed to be the emission of noncondensable gases, including hydrogen sulfide, mercury, and radon. Based upon data at The Geysers, California, Power Plant, emissions of mercury and radon are not large enough to result i… more

Date: August 21, 1979

Creator: Anspaugh, L. R. & Hahn, J. L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Plume blight visibility modeling with a simulated photograph technique

A description is given of a visibility model and the results of its application to plume blight problems. The model calculates pollutant dispersion, atmospheric chemistry, and radiative transfer in plumes from industrial facilities. The principal model output is in the form of a simulated photograph that depicts a scene that has been modified by light scattering particulates and light absorbing gases. Pollutant dispersion is described by a gaussian model with provision for multiple reflections … more

Date: January 1, 1979

Creator: Williams, M. D.; Treiman, E. & Wecksung, M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Irradiation preservation of seafood: Literature review

The application of gamma-irradiation for extending the shelf life of seafood has been of interest for many years. This report reviews a number of studies on seafood irradiation conducted over the past several years. Topics covered include seafood irradiation techniques and dosages, species applicability and differences, the effects of packaging on seafood preservation, and changes in organoleptic acceptability as a result of irradiation. Particular attention is given to radiation effects (likel… more

Date: October 1, 1987

Creator: Molton, P. M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Detecting heavy flavors at CBA

In the CBA luminosity range (L approx. = 10/sup 32/-10/sup 33/cm/sup -2/sec/sup -1/) the expected rate of bare heavy flavor production is high enough to allow for detection schemes which rely on relatively small leptonic branching ratios. These provide a clean separation of the signal from the gluon plus light quark background, while retaining sufficient statistics for further study. The current status of the investigation of lepton-related triggers and cuts is presented, and the jet topologies… more

Date: March 1, 1983

Creator: Aronson, S.; Ogilvie, M.; Stumer, I.; Tanaka, M. & Wanderer, P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Guide to making time-lapse graphics using the facilities of the National Magnetic Fusion Energy Computing Center

The advent of large, fast computers has opened the way to modeling more complex physical processes and to handling very large quantities of experimental data. The amount of information that can be processed in a short period of time is so great that use of graphical displays assumes greater importance as a means of displaying this information. Information from dynamical processes can be displayed conveniently by use of animated graphics. This guide presents the basic techniques for generating b… more

Date: May 1, 1980

Creator: Munro, J.K. Jr.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Environmental control for confinement livestock housing

Advantages and disadvantages of mechanical ventilation systems for livestock housing are discussed. Various principles involved in environmental control are reviewed. The design, operation, maintenance, and management of the equipment needed for environmental control are discussed. (JGB)

Date: June 1, 1980

Creator: Jones, D. D.; Friday, W. H. & DeForest, S. S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Sludge storage lagoon biogas recovery and use

The City of Memphis has two wastewater treatment plants. The SWTP employs two large anaerobic digestion sludge lagoons as part of the overall sludge treatment system. Although these lagoons are effective in concentrating and digesting sludge, they can generate offensive odors. The SWTP uses aerobic digesters to partially stabilize the sludge and help reduce objectionable odors before it enters the lagoons. The anaerobic digestion of sludge in the lagoons results in the dispersion of a large qua… more

Date: July 1, 1991

Creator: Muller, D. & Norville, C. (Memphis and Shelby County Div. of Planning and Development, TN (United States))

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Theoretical mean colors for RR Lyrae variables. [Computer code, variable Eddington radiation approximation]

A hydrodynamically pulsating 0.6 M/sub solar/ model of a typical RR Lyrae variable was studied with a radiation transport-hydrodynamic computer program to predict theoretical T/sub e/ and colors at many phases and to find the proper methods for getting mean colors and the consequent mean effective temperatures. The variable Eddington radiation approximation method was used with gray and with multifrequency absorption coefficients to represent the radiation flow in the outer optically thin layer… more

Date: January 1, 1978

Creator: Davis, C.G. & Cox, A.N.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A Fast Online Event Display for a High Intensity Fixed-Target Spectrometer

A workstation-based event display program for the Fermilab Tagged Photon Spectrometer (TPS) is described. Fast displays are required to monitor detector elements, observe hit patterns and energy deposition, and to check track reconstruction. Design considerations, novel features, and performance are designed. 5 refs., 4 figs., 1 tab.

Date: May 3, 1990

Creator: Napier, Austin

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Exploratory benefit-cost analysis of environmental controls on hydrothermal energy

A study of the value of environmental benefits generated by environmental regulation of hydrothermal sites was initiated to compare these benefits with the estimated costs of regulation. Primary objectives were to 1) evaluate the environmental damages caused by unregulated hydrothermal resource development, 2) use existing environmental and economic data to estimate the dollar value of preventing expected environmental damages at two sites, and 3) compare the benefits and costs of preventing th… more

Date: February 1, 1981

Creator: Scott, M. J.; Wells, K. D.; Currie, J. W. & King, M. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department