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Articles 3331 - 3360 of 4614

Full-Text Articles in Civil and Environmental Engineering

Upper Spokane River Model: Boundary Conditions And Model Setup, 2001, Spencer Slominski, Robert Leslie Annear, Chris Berger, Scott A. Wells Dec 2002

Upper Spokane River Model: Boundary Conditions And Model Setup, 2001, Spencer Slominski, Robert Leslie Annear, Chris Berger, Scott A. Wells

Civil and Environmental Engineering Faculty Publications and Presentations

The Washington Department of Ecology is interested in a water quality model for the Upper Spokane River system for use in developing Total Maximum Daily Loads (TMDLs). The goals of this modeling effort are to:

• Gather data to construct a computer simulation model of the Spokane River system including Long Lake Reservoir and the pools behind Nine Mile dam, Upper Falls dam and Upriver dam for 2001 based on the calibration conducted for 1991 and 2000 data sets, (Annear et al, 2001).

• Ensure that the model accurately represents the system hydrodynamics and water quality (flow, temperature, dissolved oxygen …


Tmdls: Statistical Correlations Or Mechanistic Modeling?, Scott A. Wells, Thomas M. Cole Nov 2002

Tmdls: Statistical Correlations Or Mechanistic Modeling?, Scott A. Wells, Thomas M. Cole

Civil and Environmental Engineering Faculty Publications and Presentations

In developing TMDL waste-load allocations for the Snake River-Reservoir system in Western Idaho and Eastern Oregon, determinations of the assimilative capacity of the system and the impact of pollutant reduction strategies has been performed using both a statistical-correlation approach and a mechanistic modeling approach. The system included the Lower Snake River, Brownlee Reservoir, Oxbow Reservoir, and Hells Canyon Reservoir with the focus was on Brownlee Reservoir.

The statistical approach used on Brownlee Reservoir divided the system into riverine and lacustrine zones. Field data were then averaged over season and location to provide statistical correlations, such as between total phosphorus (TP) …


Field Guide To The Geology Of The Harlan County Lake Area, Harlan County, Nebraska, With A History Of Events Leading To Construction Of Harlan County Dam, Robert F. Diffendal Jr., Duane R. Mohlman, R. George Corner, F. Edwin Harvey, K. J. Warren, Scott Summerside, Roger K. Pabian, Duane A. Eversoll Aug 2002

Field Guide To The Geology Of The Harlan County Lake Area, Harlan County, Nebraska, With A History Of Events Leading To Construction Of Harlan County Dam, Robert F. Diffendal Jr., Duane R. Mohlman, R. George Corner, F. Edwin Harvey, K. J. Warren, Scott Summerside, Roger K. Pabian, Duane A. Eversoll

School of Natural Resources: Faculty Publications

The year 2002 will mark the fiftieth anniversary of completion of the Harlan County Dam and Multi-Purpose Reservoir. This seems a good time to write about the history of and reasons for building the dam, the effects of the dam and reservoir on the Republican River valley, and the geologic features seen along the shores of the lake and areas nearby. As many junior authors helped produced this educational circular, they are listed in the table of contents. All other sections were written by the senior author.

Includes July 2016 update: Addendum of photographs showing fault traces on drought-exposed lake …


Creep And Creep-Recovery Models For Wood Under High Stress Levels, Zhiyong Cai, Kenneth J. Fridley, Michael O. Hunt, David V. Rosowsky Jul 2002

Creep And Creep-Recovery Models For Wood Under High Stress Levels, Zhiyong Cai, Kenneth J. Fridley, Michael O. Hunt, David V. Rosowsky

Civil and Environmental Engineering and Construction Faculty Research

Forty small clear southern pine specimens were loaded under third-point bending to examine creep and creep-recovery behavior for wood under high stress levels. Stress levels of between 69% and 91% of the predicted static strength were applied for 23 h with 1 h allowed for recovery, and the resulting deflection vs. time behavior was studied. The experimental creep and creep-recovery behavior was modeled using modified power law functions. The results indicate that these functions provide the best fit to both primary and secondary experimental data. The empirical models can be used to simulate the viscoelastic behavior of wood under high …


Coalbed Methane In The San Juan Basin Of Colorado And New Mexico, Catherine Cullicott, Carolyn Dunmire, Jerry Brown, Chris Calwell Apr 2002

Coalbed Methane In The San Juan Basin Of Colorado And New Mexico, Catherine Cullicott, Carolyn Dunmire, Jerry Brown, Chris Calwell

Coalbed Methane Development in the Intermountain West (April 4-5)

35 pages (includes color illustrations and maps).

Contains 6 pages of endnotes.


Coalbed Methane Development In Wyoming’S Powder River Basin, Diana Hulme Apr 2002

Coalbed Methane Development In Wyoming’S Powder River Basin, Diana Hulme

Coalbed Methane Development in the Intermountain West (April 4-5)

21 pages (includes color illustrations and maps).

Contains endnotes.


Powder River Basin Coalbed Methane Financial Model (Prb-Cbm-Fm), W. Thomas Goerold Apr 2002

Powder River Basin Coalbed Methane Financial Model (Prb-Cbm-Fm), W. Thomas Goerold

Coalbed Methane Development in the Intermountain West (April 4-5)

12 pages (includes illustrations).

Contains references.


Overview Of Cbm Issues In The San Juan Basin, Catherine Cullicott Apr 2002

Overview Of Cbm Issues In The San Juan Basin, Catherine Cullicott

Coalbed Methane Development in the Intermountain West (April 4-5)

3 pages (includes some color illustrations and maps).


Impacts Of Cbm Development On Communities, Gwen Lachelt Apr 2002

Impacts Of Cbm Development On Communities, Gwen Lachelt

Coalbed Methane Development in the Intermountain West (April 4-5)

2 pages.


Agenda: Coalbed Methane Development In The Intermountain West, University Of Colorado Boulder. Natural Resources Law Center Apr 2002

Agenda: Coalbed Methane Development In The Intermountain West, University Of Colorado Boulder. Natural Resources Law Center

Coalbed Methane Development in the Intermountain West (April 4-5)

306 p. : ill., maps ; 28 cm

"July 2002"--Cover

Proceedings of a conference held April 4-5, 2002

Listed as no. 28 in the Research Report Series on the NRLC Recent Publications list

Includes bibliographical references

Contents:

Coalbed methane development in the Intermountain West : a primer / Gary Bryner -- Coalbed methane development in the Intermountain West : case studies. Coalbed methane in the San Juan Basin of Colorado and New Mexico / Catherine Cullicott, Carolyn Dunmire, Jerry Brown, Chris Calwell ; Coalbed methane development in Wyoming's Powder River Basin / Diana Hulme -- Keynote address / Rebecca Watson …


The Hydrology Of Coalbed Methane Reservoirs And The Interplay Of Gas, Water, And Coal In Cbm Production, Leslie Nogaret Apr 2002

The Hydrology Of Coalbed Methane Reservoirs And The Interplay Of Gas, Water, And Coal In Cbm Production, Leslie Nogaret

Coalbed Methane Development in the Intermountain West (April 4-5)

7 pages (includes color illustrations and map).


Best Cbm D[R]Illing, Completion, Production, Technologies, And Management Practices, Dennis Carlton Apr 2002

Best Cbm D[R]Illing, Completion, Production, Technologies, And Management Practices, Dennis Carlton

Coalbed Methane Development in the Intermountain West (April 4-5)

3 pages.


Cbm Development And Water Issues, Dave Brown Apr 2002

Cbm Development And Water Issues, Dave Brown

Coalbed Methane Development in the Intermountain West (April 4-5)

7 pages (includes color illustrations).


Keynote Address, John Watts Apr 2002

Keynote Address, John Watts

Coalbed Methane Development in the Intermountain West (April 4-5)

5 pages.


Coalbed Methane In The Rocky Mountain Region: Yesterday, Today And Tomorrow, Matthew R. Silverman Apr 2002

Coalbed Methane In The Rocky Mountain Region: Yesterday, Today And Tomorrow, Matthew R. Silverman

Coalbed Methane Development in the Intermountain West (April 4-5)

8 pages (includes color illustrations and maps).

Contains references.


Developing Cbm In The Powder River Basin, William T. Brown, Jr. Apr 2002

Developing Cbm In The Powder River Basin, William T. Brown, Jr.

Coalbed Methane Development in the Intermountain West (April 4-5)

5 pages (includes some color illustrations and maps).


Federal, State, And Local Regulatory Framework For Permitting Of Cbm Development, Kate Zimmerman Apr 2002

Federal, State, And Local Regulatory Framework For Permitting Of Cbm Development, Kate Zimmerman

Coalbed Methane Development in the Intermountain West (April 4-5)

17 pages.

Contains 5 pages of endnotes.


Concluding Comments, Mark Pearson Apr 2002

Concluding Comments, Mark Pearson

Coalbed Methane Development in the Intermountain West (April 4-5)

3 pages.


Coalbed Methane Development In The Intermountain West: Primer, Gary Bryner Apr 2002

Coalbed Methane Development In The Intermountain West: Primer, Gary Bryner

Coalbed Methane Development in the Intermountain West (April 4-5)

50 pages (includes color illustrations and maps).

Contains 7 pages of endnotes.



An Overview Of Cbm Exploration And Production, Steve De Albuquerque Apr 2002

An Overview Of Cbm Exploration And Production, Steve De Albuquerque

Coalbed Methane Development in the Intermountain West (April 4-5)

9 pages (includes color illustrations and maps).


Waste Or Wasted? Rethinking The Regulation Of Coalbed Methane Byproduct Water In The Rocky Mountains: A Comparative Analysis Of Approaches To Cbm Produced Water Quantity Legal Issues In Utah, New Mexico, Colorado, Montana And Wyoming, Thomas F. Darin Apr 2002

Waste Or Wasted? Rethinking The Regulation Of Coalbed Methane Byproduct Water In The Rocky Mountains: A Comparative Analysis Of Approaches To Cbm Produced Water Quantity Legal Issues In Utah, New Mexico, Colorado, Montana And Wyoming, Thomas F. Darin

Coalbed Methane Development in the Intermountain West (April 4-5)

30 pages.

Contains 13 pages of references.


Cbm Development On The Southern Ute Reservation, Bob Zahradnik Apr 2002

Cbm Development On The Southern Ute Reservation, Bob Zahradnik

Coalbed Methane Development in the Intermountain West (April 4-5)

6 pages (includes color illustrations and maps).


The Geology And Production Characteristics Of The Powder River And Other Cbm Basins In Wyoming, Lance Cook Apr 2002

The Geology And Production Characteristics Of The Powder River And Other Cbm Basins In Wyoming, Lance Cook

Coalbed Methane Development in the Intermountain West (April 4-5)

7 pages (includes some color illustrations and maps).


A Review Of Cbm Development In The Powder River And Other Wyoming Basins, Don Likwarz Apr 2002

A Review Of Cbm Development In The Powder River And Other Wyoming Basins, Don Likwarz

Coalbed Methane Development in the Intermountain West (April 4-5)

6 pages (includes illustrations).


Cbm Water Management: Challenges, Solutions, And Opportunities, Mike Day Apr 2002

Cbm Water Management: Challenges, Solutions, And Opportunities, Mike Day

Coalbed Methane Development in the Intermountain West (April 4-5)

15 pages (includes color illustrations and maps).


Cbm Development, Ranching, And Agriculture, Nancy Sorenson, Jill Morrison Apr 2002

Cbm Development, Ranching, And Agriculture, Nancy Sorenson, Jill Morrison

Coalbed Methane Development in the Intermountain West (April 4-5)

5 pages.


Fisheries Management Report No. 6 - Proceedings Of Marron Farming Open Day 2002, Greg B. Maguire Apr 2002

Fisheries Management Report No. 6 - Proceedings Of Marron Farming Open Day 2002, Greg B. Maguire

Fisheries Published Reports

The marron industry is of considerable importance to the Department of Fisheries, being one of the older aquaculture industries in Western Australia, and one that accounts for around half the aquaculture licence holders in the State. While it has not grown as quickly as many hoped in the past, in 2000/01, some 52.2 tonnes of marron were produced, worth $1.18 million at the farm gate.

It is regionally significant, particularly in the south-west, and depending on appropriate site selection, has considerable potential in other areas. Farms are distributed from near Geraldton to around Bremer Bay, with additional interest around Esperance. …


Smart Growth And Land Acquisition Priorities, New England Environmental Finance Center Mar 2002

Smart Growth And Land Acquisition Priorities, New England Environmental Finance Center

Land Conservation

It is well-known and generally accepted that all undeveloped land in New England cannot forever be protected from development; nor would this be a desirable goal, as continued economic development and population growth are near certainties. For these and other reasons, private land trusts and government agencies generally use explicit criteria to prioritize their land acquisition activities and prospects.

Much land protection in New England and elsewhere, however, has occurred without substantial attention to such land use needs as fostering the best locations for where people will live, businesses will locate, and infrastructure will be built to avoid degrading resources. …


Effect Of Ph And Gas-Phase Ozone Concentration On The Decolorization Of Common Textile Dyes, Craig D. Adams, Steven Gorg Mar 2002

Effect Of Ph And Gas-Phase Ozone Concentration On The Decolorization Of Common Textile Dyes, Craig D. Adams, Steven Gorg

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper presents the results of a laboratory study on the effect of pH (2, 5, and 9) and gas-phase ozone concentration (1, 7, and 11 wt. %) on the decolorization efficiency via ozonation for seven common textile dyes. Higher gas-phase ozone concentrations resulted in higher decolorization rates due to more rapid ozone transfer. Higher gas-phase ozone concentration, however, was also observed to have a positive, neutral, or negative effect on ozone dose requirements for different dyes. In general, greater ozone utilization efficiency was achieved at lower pH levels where direct ozone reactions predominate. It was observed that because ozonation …


Removal Of Antibiotics From Surface And Distilled Water In Conventional Water Treatment Processes, Craig D. Adams, Yang Wang, K. Loftin, M. Meyer Mar 2002

Removal Of Antibiotics From Surface And Distilled Water In Conventional Water Treatment Processes, Craig D. Adams, Yang Wang, K. Loftin, M. Meyer

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Conventional drinking water treatment processes were evaluated under typical water treatment plant conditions to determine their effectiveness in the removal of seven common antibiotics: carbadox, sulfachlorpyridazine, sulfadimethoxine, sulfamerazine, sulfamethazine, sulfathiazole, and trimethoprim. Experiments were conducted using synthetic solutions prepared by spiking both distilled/ deionized water and Missouri River water with the studied compounds. Sorption on Calgon WPH powdered activated carbon, reverse osmosis, and oxidation with chlorine and ozone under typical plant conditions were all shown to be effective in removing the studied antibiotics. Conversely, coagulation/flocculation/sedimentation with alum and iron salts, excess lime/soda ash softening, ultraviolet irradiation at disinfection dosages, and …