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Articles 46381 - 46410 of 52496
Full-Text Articles in Physical Sciences and Mathematics
Cost-Effective Fire Management For Southern California's Chaparral Wilderness: An Analytical Procedure, Chris A. Childers, Douglas D. Piirto
Cost-Effective Fire Management For Southern California's Chaparral Wilderness: An Analytical Procedure, Chris A. Childers, Douglas D. Piirto
Natural Resources Management and Environmental Sciences
Fire management has always meant fire suppression to the managers of the chaparral covered southern California National Forests. Today, Forest Service fire management programs must be cost effective, while wilderness fire management objectives are aimed at recreating natural fire regimes. A cost-effectiveness analysis has been developed to compare fire management options for meeting these objectives in California's chaparral wilderness. This paper describes the analytical procedure using examples from a study currently being conducted for the Los Padres National Forest, and discusses some preliminary results.
Water Current, Volume 20, October 1988
Water Current, Volume 20, October 1988
Water Current Newsletter
Bonneville Power Administrator Compares Missouri Basin Reservoirs with Pacific Northwest's
Nebraska Ranks Third in Water Use in U.S.
Spalding Appointed Associate Director of UNL Water Center
Nebraska Water Conference Council Holds Fall Meeting
Water Research Proposals are Due December 1
Answers to Water Quality Questions Closer with Burlington Northern Foundation $ Million Grant
Former Nebraskans Address Northwest Water Tour Group
Drought Responses Discussed at Forum
Irrigation Scheduling Of Soybeans, Corn, Wheat, And Potatoes (Camac Progress Report 87-8), Blaine L. Blad
Irrigation Scheduling Of Soybeans, Corn, Wheat, And Potatoes (Camac Progress Report 87-8), Blaine L. Blad
School of Natural Resources: Faculty Publications
No abstract provided.
Comparison Of Measured And Modeled Radiation, Heat, And Water Vapor Fluxes: Fife Pilot Study (Camac Progress Report 87-7), Blaine L. Blad, Shashi B. Verma, Kenneth G. Hubbard, Patrick Starks, Cynthia Hays, John M. Norman, Elizabeth Walter-Shea
Comparison Of Measured And Modeled Radiation, Heat, And Water Vapor Fluxes: Fife Pilot Study (Camac Progress Report 87-7), Blaine L. Blad, Shashi B. Verma, Kenneth G. Hubbard, Patrick Starks, Cynthia Hays, John M. Norman, Elizabeth Walter-Shea
School of Natural Resources: Faculty Publications
No abstract provided.
The Probe, Issue 86 - October 1988
The Probe, Issue 86 - October 1988
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
OCTOBER 1988
Wildlife Legislative Fund of America
APHIS Activity Report
Giardia Lamblia
Personnel
Letters to Ye Ed
Preserving Habitat
The Planet, 1988, Volume 09, Issue 02, Aaron Coffin, Associated Students Environmental Center, Western Washington University
The Planet, 1988, Volume 09, Issue 02, Aaron Coffin, Associated Students Environmental Center, Western Washington University
The Planet
No abstract provided.
Resource Law Notes Newsletter, No. 15, Oct. 1988, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 15, Oct. 1988, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
Analysis Of C2 And C3 Hydrocarbons In Ambient Air. Section I ; Identification And Quantification Of Volatile Organics Emitted From A Landfill. Section Ii, Tsong-Sheng Chang
Analysis Of C2 And C3 Hydrocarbons In Ambient Air. Section I ; Identification And Quantification Of Volatile Organics Emitted From A Landfill. Section Ii, Tsong-Sheng Chang
Theses
SECTION I
A method was developed to analyze Acetylene, Ethylene, Ethane, Propylene and Propane levels in the ambient air. Chlorinated compounds within the operation retention time, Methyl chloride, Methylene chloride and Vinyl chloride, were monitored also.
Four sampling sites are located at Carteret, Elizabeth, Newark and Montville in New Jersey. Samples were taken during the summer of 1988. Two sample duration periods utilizing 12 and 6 liter stainless steel canisters were set up to take 24 hour air samples and instantaneous air samples (5 minutes collection period).
The average levels of Acetylene, Ethylene, Ethane, Propylene and Propane at the four …
Thermal Decomposition Of Dichloromethane/1,1,1-Trichloroethane Mixture In An Atmosphere Of Hydrogen, Yang Soo Won
Thermal Decomposition Of Dichloromethane/1,1,1-Trichloroethane Mixture In An Atmosphere Of Hydrogen, Yang Soo Won
Theses
The thermal decomposition of a dichloromethane/1 , 1 , 1-trichloroethane mixture diluted in hydrogen was conducted in tubular flow reactors at 1 atmosphere total pressure. The thermal degradation of each species was analyzed systematically over temperature ranges from 475 - 810 °C, residence times of 0.05 - 2.0 seconds and three different surface to volume ratio flow reactors.
It was found that the conversions of each species in the mixture were a function of both temperature and residence time. Complete decay occurs at about 810 °C for dichloromethane and around 570 °C for 1,1,1-trichloroethane at 1 second residence time. The …
A Study Of Human Exposure To Benzo(A)Pyrene (Bap) Through Different Pathways. Part A ; Assessment Of Benzo(A)Pyrene (Bap) Exposure Through Urine Analysis With The Hydriodic Acid Reduction Reaction. Part B, Shao-Keng Liang
Theses
PART A: An investigation of total human exposure to an environmental pollutant is described. The study is being conducted in a community impacted by a foundry suspected to be a dominant local source of benzo(a)pyrene (BaP). The research aims to assess the relative contributions of indoor and outdoor sources and to measure BaP in media including indoor air, outdoor air, food and water.
PART B: A method for biological monitoring of exposure to benzo(a)pyrene, a representative polycyclic aromatic hydrocarbon (PAH), has been developed. The analytical procedure includes extraction of PAH and PAH metabolites from urine using commercial cartridges containing c …
The Prairie Naturalist Volume 20, No.3. September 1988
The Prairie Naturalist Volume 20, No.3. September 1988
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
MOVEMENTS OF ADULT STRIPED BASS TRACKED IN WILSON RESERVOIR, KANSAS ▪ K. E. Hampton, T. L. Wenke, and B. A. Zamrzla
GROWTH, POPULATION STRUCTURE, AND MORTALITY OF CHANNEL CATFISH FROM THE POWDER RIVER AND CRAZY WOMAN CREEK, WYOMING ▪ J. B. Smith and W. A. Hubert
HABITAT USE BY WHITE-TAILED DEER IN PRAIRIE-AGRICULTURAL HABITAT IN MONTANA ▪ G. L. Dusek, A. K. Wood, and R. J. Mackie
BEAVER CROP DEPREDATION IN EASTERN SOUTH DAKOTA ▪ C. D. Dieter and T. R. McCabe …
State Water Quality Standards Summary: Nebraska, U.S. Environmental Protection Agency
State Water Quality Standards Summary: Nebraska, U.S. Environmental Protection Agency
United States Environmental Protection Agency: Publications
This publication was prepared by Battelle under contract to the U,S. Environmental Protection Agency (Contract 68-03-3534). Secondary information sources were used to compile data presented in this document. Each State was given an opportunity to review and provide comments on a draft of this information document. In no event shall either the United States or Battelle have any responsibility or liability for any use, misuse, or reliance upon the information contained herein, nor does either warrant or otherwise represent in any way .the accuracy, adequacy, efficacy, or applicability of the contents hereof.
The reader should consult the water quality standards …
Potential Of Surface Water Contamination From Three Triazine Herbicides, William W. Witt, Kip W. Sander
Potential Of Surface Water Contamination From Three Triazine Herbicides, William W. Witt, Kip W. Sander
KWRRI Research Reports
The movement of atrazine, cyanazine, and simazine from the site of application was monitored under conventional, reduced, and no-tillage conditions. Less water and soil was lost from the no-tillage and reduced tillage conditions. Conventional tillage conditions had about 66,000 L/ha runoff in 1986-87 and about 123,000 L/ha runoff in 1987-88. Seasonal rainfall was 885 mm in 1986-87 and 397 mm in 1987-88. The rainfall intensity was greater during the first two events in 1987 than the corresponding events in 1986. The first rainfall event in 1986 accounted for 91, 89, and 78% of the total seasonal loss of atrazine, cyanazine, …
Carlton Plains Soil Survey In The Shire Of Wyndham, East Kimberley, T C. Stoneman
Carlton Plains Soil Survey In The Shire Of Wyndham, East Kimberley, T C. Stoneman
Resource management technical reports
The Carlton Plains covers approximately 11,750 ha midway between Wyndham and Kununurra on the northern bank of the Ord River in the Shire of East Kimberley. The survey area is divided into two geomorphic units, the clay plains and the levee areas. Soils of the former generally belong to the Cununurra family of cracking clays while those of the levees are generally more variable and of medium texture.Samples of the major soils were collected for mechanical analysis and basic chemical analysis.Sodium chloride percentages and exchangeable sodium percentages are both high on the clay soils of the western plain. The suitability …
Expected Mean Squares On Ms-Dos, Richard M. Engeman, Amber D. Lusk
Expected Mean Squares On Ms-Dos, Richard M. Engeman, Amber D. Lusk
United States Department of Agriculture Wildlife Services: Staff Publications
An interactive program for calculating the expected mean squares for balanced designs was developed for use on a Tektronix 4054 desktop computer (Engeman 1982). That program used BASIC string commands that did not translate well into other forms of BASIC, including that for MS-DOS machines. The program has since been rewritten to run on MS-DOS machines. Its output has also been expanded. The new version was written in BASIC on an AT&T PC 6300 and will run on most MS-DOS machines that support BASIC.
Nonparametric Comparison Of Exponential Growth Curves, Russel S. Rickard, Richard M. Engeman, Gary O. Zerbe
Nonparametric Comparison Of Exponential Growth Curves, Russel S. Rickard, Richard M. Engeman, Gary O. Zerbe
United States Department of Agriculture Wildlife Services: Staff Publications
A program to compare exponential growth curves via randomization tests has been developed for the one-way analysis-of variance situation. Exponential growth curves of the form Y = a - b exp( - gt) are first fit to each individual's longitudinal data. The parameters from each individual's curve are then input into the randomization program.
Experimental Studies Of Zinc-65 Uptake Rates By The American Oyster, Crassostrea Virginica With Regard To Salinity, Sediment Concentration, And Body Size, Cheol Mo, Bruce Neilson
Experimental Studies Of Zinc-65 Uptake Rates By The American Oyster, Crassostrea Virginica With Regard To Salinity, Sediment Concentration, And Body Size, Cheol Mo, Bruce Neilson
Reports
Three sets of twelve oysters from the ,James River were placed in three recirculating aquaria dosed with the radioactive tracer zinc-65. All aquaria had the same amount of river bottom sediment which was kept in suspension by the water movement caused by aeration; one aquarium had twice as much tracer as the other two. The salinity of one of the low dose aquaria and. the high dose aquarium was maintained at 18 0/00: the other low dose aquarium was maintained at 1:2 0/00. All other factors were kept constant. Sediment-water-tracer mix was added to the aquaria every 12 hours. Water …
Water Current, Volume 20, August 1988
Water Current, Volume 20, August 1988
Water Current Newsletter
Pacific Northwest Destination of Annual Water Resources Fall Tour
Roger Gold to Direct UNL Water Center
We've Moved! Water Center on East Campus
EPA Releases Booklet on Grondwater Protection
Research Review: Recent Projects Completed by UNL Scientists
Water Quality Initiative Teams Gear Up for Nebraska Water Quality Priority Initiative
Conservation Called for on Annual Water Resources Tour
The Probe, Issue 85 - August/September 1988
The Probe, Issue 85 - August/September 1988
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
AUGUST/SEPTEMBER 1988
Trapping’s Future?
The Toxic Collar
APHIS Activity Report
Pet Food Institute Report
Cholecalciferol
The Repellent, Ro-pel.
Strychnine
House/Tree Sparrows
Letters to Ye Ed
The Effect Of Preozonation On The Anaerobic Biodegradability Of Resistant Phenolic Compounds, Yi-Tin Wang, Pin-Chieh Pai, James L. Latchew
The Effect Of Preozonation On The Anaerobic Biodegradability Of Resistant Phenolic Compounds, Yi-Tin Wang, Pin-Chieh Pai, James L. Latchew
KWRRI Research Reports
Ozone pretreatment studies of four model phenolic compounds were conducted to evaluate the effects of ozonation on the anaerobic biodegradability and toxicity of these compounds. Two types of batch studies, the Biochemical Methane Potential (BMP) and the Anaerobic Toxicity Assay (ATA), were performed on samples ozonated upon phenol, o-cresol, 2,5-dichlorophenol, and 2,4-dinitrophenol.
Experimental results showed that toxic and refractory phenolic compounds were converted to methane gas by means of preozonation. In general, the biodegradable fraction of the oxidation products increased as the ozone dose was increased. However, ozonation to achieve at least 60% COD reduction was necessary to faciliate methane …
Virtually Interactive Large-Scale Model For Arkansas: User's Guide (Vilma), Rosalinda R. A. Cantiller, Richard C. Peralta
Virtually Interactive Large-Scale Model For Arkansas: User's Guide (Vilma), Rosalinda R. A. Cantiller, Richard C. Peralta
Arkansas Water Resources Center Technical Reports
This user’s guide supports the use of VILMA (Virtually Interactive Large-scale Model for Arkansas). This document presents the basic concepts in Chapter I. Chapter II discusses the execution steps that the user follows during a VILMA session. Chapter III provides a detailed illustration of example data files. Chapter IV presents two example VILMA sessions. Finally, Chapter V elaborates on additional concepts. The Appendices consist of relevant program listings, instructions, and example files. In this user’s guide, the word "interactive" means the user enters his responses to the prompts that appear on a computer terminal while he is logged on to …
Wetlands Board Bulletin Vol. Iii, No. 2, Virginia Institute Of Marine Science
Wetlands Board Bulletin Vol. Iii, No. 2, Virginia Institute Of Marine Science
Virginia Wetlands Reports
- Wetland Management: An Early History Middlesex County
- Profiles of Wetlands Board Members Appeals to VMRC
Bulking Control With Ozonation In A Nutrient Removal Activated Sludge System, Johannes Van Leeuwen
Bulking Control With Ozonation In A Nutrient Removal Activated Sludge System, Johannes Van Leeuwen
Johannes van Leeuwen
The control of sludge bulking by ozonation was studied on four parallel pilot-scale (100 l/d) biological nutrient removal systems. Bulking was caused by filamentous organisms which typically occur in nutrient removal systems, i.e. Type 0092, Tpye 0041 and Microthrix parvicella. Continuous dosing of ozone, at 1; 2 and 4g O3/kg mixed liquor suspended solids (MLSS).d resulted in a diluted sludge volume index of about 50 ml/g less than the unozonated control. Ozonation was more effective in the sludge cycle than directly into the aeration basin. Nitrification-denitrification was not affected, not even at dosages of 30 g O3/kg MLSS.d. Biological phosphate …
Survey Of Recent Developments In Indian Water Law: Litigation And Negotiations, Jeanne S. Whiteing
Survey Of Recent Developments In Indian Water Law: Litigation And Negotiations, Jeanne S. Whiteing
Natural Resource Development in Indian Country (Summer Conference, June 8-10)
104 pages.
The Montana Reserved Water Rights Compact Commission, Marcia Beebe Rundle
The Montana Reserved Water Rights Compact Commission, Marcia Beebe Rundle
Natural Resource Development in Indian Country (Summer Conference, June 8-10)
27 pages.
Contains references.
Joint Statement Of Department Of Water Resources Of Arizona, Colorado River Board Of California, And Colorado River Commission Of Nevada On House Bill 2642 Before The Committee On Interior And Insular Affairs House Of Representatives, Myron B. Holbert
Natural Resource Development in Indian Country (Summer Conference, June 8-10)
43 pages.
Instream Flows And Tribal Management Goals: The Flathead Indian Reservation Litigation, Daniel F. Decker
Instream Flows And Tribal Management Goals: The Flathead Indian Reservation Litigation, Daniel F. Decker
Natural Resource Development in Indian Country (Summer Conference, June 8-10)
6 pages.
Off-Reservation Marketing Of Indian Water, Steven J. Shupe
Off-Reservation Marketing Of Indian Water, Steven J. Shupe
Natural Resource Development in Indian Country (Summer Conference, June 8-10)
12 pages.
The Wind River Litigation: Quantification And Implementation, Gordon W. Fassett
The Wind River Litigation: Quantification And Implementation, Gordon W. Fassett
Natural Resource Development in Indian Country (Summer Conference, June 8-10)
19 pages.
The Wind River Litigation: Effects Of The Wyoming Supreme Court’S Decision On The Wind River Reservation’S Water Use And Implications For Other Reservations’ Water Rights, David M. Dornbusch
The Wind River Litigation: Effects Of The Wyoming Supreme Court’S Decision On The Wind River Reservation’S Water Use And Implications For Other Reservations’ Water Rights, David M. Dornbusch
Natural Resource Development in Indian Country (Summer Conference, June 8-10)
11 pages.