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Articles 49051 - 49080 of 57413
Full-Text Articles in Entire DC Network
Growth And Decay Losses In Colorado Aspen, Thomas E. Hinds, E.M. Wengert
Growth And Decay Losses In Colorado Aspen, Thomas E. Hinds, E.M. Wengert
Aspen Bibliography
Quaking aspen (Populus tremuloides Michx.) stands in Arizona, Colorado, New Mexico, Utah, and Wyoming (fig. 1) contain an estimated 7.1 billion bd ft of sawtimber (Green and Setzer 1974).
Summary Of Nutrient And Biomass Data From Two Aspen Sites In Western United States, Robert S. Johnston, D.L. Bartos
Summary Of Nutrient And Biomass Data From Two Aspen Sites In Western United States, Robert S. Johnston, D.L. Bartos
Aspen Bibliography
No abstract provided.
Biomasse D'Un Peuplement De Peuplier Faux-Tremble Age Six Ans, René Doucet
Biomasse D'Un Peuplement De Peuplier Faux-Tremble Age Six Ans, René Doucet
Aspen Bibliography
The establishment of an experiment designed to study the effect of thinning and fertilization in a 6 year-old trembling aspen stand, provided the opportunity to determine the mass of the standing crop present at the age.
Litter Fall And Chemical Cycling In An Aspen (Populus Tremuloides) Woodland Ecosystem In The Canadian Rockies, J.B. Cragg, A. Carter, C. Leischner, E.B. Peterson, G.N. Sykes
Litter Fall And Chemical Cycling In An Aspen (Populus Tremuloides) Woodland Ecosystem In The Canadian Rockies, J.B. Cragg, A. Carter, C. Leischner, E.B. Peterson, G.N. Sykes
Aspen Bibliography
No abstract provided.
Preliminary Forest Habitat Types Of The Uinta Mountains, Jan A. Henderson, Ronald L. Mauk, Donald L. Anderson, T.A. Davis, T.J. Keck
Preliminary Forest Habitat Types Of The Uinta Mountains, Jan A. Henderson, Ronald L. Mauk, Donald L. Anderson, T.A. Davis, T.J. Keck
Aspen Bibliography
Following pioneering work in northern Idaho and eastern Washington by Daubenmire, 1952, 1968, and later in Montana, Idaho, Wyoming and Utah by Pfister et al., 1974; Steele et al., 1974, 1975; Cooper, 1975; Reed, 1969; Ream 1964; and Pfister (1972) on the subalpine fir and engelmann spruce series. This current work covers all forest land in Utah and adjacent Wyoming including that covered by Pfister.
Runoff Estimates For Small Rural Watersheds And Development Of A Sound Design Method: Volume Iii. Appendix A, Joel E. Fletcher, A. Leon Huber, Frank W. Haws, Calvin G. Clyde
Runoff Estimates For Small Rural Watersheds And Development Of A Sound Design Method: Volume Iii. Appendix A, Joel E. Fletcher, A. Leon Huber, Frank W. Haws, Calvin G. Clyde
Reports
Foreword: This report is composed of thee volumes; Volume I is the Research Report; Volume II consists of recommendations for establishing design manuals and Appendices B, C, D, E, F, G, and H, which are the design aids required for establishing design manuals; Volume III consists of Appendix A, and accumulation of the data base used in the study, FHWA chose to arrange the report as described to facilitate distribution of the results. The methods reported herein are designated as the Federal Highway Administration Methods are designed to be applied to watersheds smaller than 50 square miles but may be …
Measurement Of The Nitric Oxide Altitude Distribution In The Mid-Latitude Mesosphere, K. D. Baker, A. F. Nagy, R. O. Olsen, E. S. Oran, J. Randhawa, D. F. Strobel, T. Tohmatsu
Measurement Of The Nitric Oxide Altitude Distribution In The Mid-Latitude Mesosphere, K. D. Baker, A. F. Nagy, R. O. Olsen, E. S. Oran, J. Randhawa, D. F. Strobel, T. Tohmatsu
Space Dynamics Laboratory Publications
A simple rocket-borne system has been developed for deriving nitric oxide concentration in the mesosphere from measurements of resonantly scattered solar ultraviolet radiation in the NOg ammbaa nd near 2150 •. The NO signal is extracted from a background of Rayleigh-scattered light by a direct measurement of this scattered light by use of an NO absorption cell. This system was utilized to measure the NO concentration above White Sands, New Mexico, in the altitude range from 69 to 101 km. The derived NO profile shows a concentration of about 3 x 10 7 cm-3 at 67 and 100 km with …
Measurements Of 1.5- To 5.3-Μm Infrared Enhancements Associated With A Bright Auroral Breakup, K. D. Baker, D. J. Baker, J. C. Ulwick Jr., A. T. Stair Jr.
Measurements Of 1.5- To 5.3-Μm Infrared Enhancements Associated With A Bright Auroral Breakup, K. D. Baker, D. J. Baker, J. C. Ulwick Jr., A. T. Stair Jr.
Space Dynamics Laboratory Publications
A Paiute-Tomahawk sounding rocket containing a 1.5- to 5.3-•m cryogenically cooled spectrometer was flown into a very bright (IBC III +) auroral breakup from Poker Flat, Alaska. The main emission features at 2.8, 4.3, and 5.3 um were all found to be enhanced owing to the larg•e energy input to the atmosphere associated with the aurora. The most prominent enhancement occurred in the 4.3-Urn feature which is identified as emission from the C02 (v•) band. The maximum of the peak spectral radiance of this feature was observed at a rocket altitude of 92 km and had a value of about …
Rocketborne Measurement Of Mesospheric H2o In The Auroral Zone, James W. Rogers, A. T. Stair Jr.
Rocketborne Measurement Of Mesospheric H2o In The Auroral Zone, James W. Rogers, A. T. Stair Jr.
Space Dynamics Laboratory Publications
Infrared emission spectra of the longwavelengtwhi ngo f the 6.3 • waterb andb etween6 .7 and 7.6 yxa have been measured in the mesosphere using a cryogenic rocketborne spectrometerø The resulting zenith radiance profile has been compared with a high altitude radiance model resulting in a volumem ixingra tioo f 3ø5 -+ 2.2 ppmb etwee4n9 and 70 km
Optimizing Crop Production Through Control Of Water And Salinity Levels In The Soil, J. I. Stewart, R. M. Hagan, W. O. Pruitt, R. E. Danielson, W. T. Franklin, R. J. Hanks, J. P. Riley, E. B. Jackson
Optimizing Crop Production Through Control Of Water And Salinity Levels In The Soil, J. I. Stewart, R. M. Hagan, W. O. Pruitt, R. E. Danielson, W. T. Franklin, R. J. Hanks, J. P. Riley, E. B. Jackson
Reports
Sizable investments have been made and continue to be made throughout the world to develop irrigation potentials. Recent food shortages have heightened the concern for obtaining greater returns to irrigation through improved water management and use. A knowledge of how plant growth cycles relate to moisture and salinity levels in the root zone is prerequisite to developing practical ways of maintaining optimum conditions for maximum production per unit of water concerned. This research further defines the role of irrigation timing and salinity management on crop production, and proposes practical techniques for predicting the crop response to management measures. Some of …
Proposal To Technology Transfer Office Of Water Research And Technology U.S. Department Of Interior, C. Earl Israelsen, Frank W. Haws, Donna H. Falkenborg, L. Douglas James
Proposal To Technology Transfer Office Of Water Research And Technology U.S. Department Of Interior, C. Earl Israelsen, Frank W. Haws, Donna H. Falkenborg, L. Douglas James
Reports
Executive Summary:
Rural Domestic Water System Peak Flows And Design Innovations, Optimal Water Planning Series, Trevor C. Hughes, Yukio Kono, Ronald Canfield
Rural Domestic Water System Peak Flows And Design Innovations, Optimal Water Planning Series, Trevor C. Hughes, Yukio Kono, Ronald Canfield
Reports
Planning engineers commonly use generous factors of safety for peak flow estimates in urban water supply systems both as a hedge against unforeseen growth and because economies of scale result in relatively low user costs even with such reserve capacity. Transplanting of such design criteria into the rural setting, however, simply does not work. The low density portions of rural domestic systems require very realistic design criteria or the construction costs become infeasible for the small number of customers involved. Peak instantaneous flow rates in a Utah rural system were measured continuously during two summers on three dead-end lines serving …
Climatology Of Hailstorms In Utah--The Hail Suppression Potential By Cloud Seeding, Kenneth G. Hubbard
Climatology Of Hailstorms In Utah--The Hail Suppression Potential By Cloud Seeding, Kenneth G. Hubbard
Reports
Hail damage in Utah was examined for individual counties and the entire state. A survey of informal observes was taken and the resulting data base was analyzed. Data from NWS was also examined. County hail damage figures average 4 to 5 percent of production and ranking of counties according to dollar damage occurs in only 4 of the 29 counties (Box Elder, Utah, Millard, and Cache). In many cases the highest dollar damage occurred in the counties of greatest dollar damage should receive the greatest concentration of hail suppression effort. In addition storm severity and crop growth stage were identified …
Weather Modification Studies: The Potential For Creating And Utilizing Ice Crystals In Weather Modification Activities, Kenneth G. Hubbard
Weather Modification Studies: The Potential For Creating And Utilizing Ice Crystals In Weather Modification Activities, Kenneth G. Hubbard
Reports
A method utilizing ice crystals to circumvent nucleation processes in cloud seeding activities is discussed in the framework of nuclei activation concepts. Ice, in the form of small crystals, would be a highly efficient cloud seeding materia up to 0 degrees Celsius. The lower limit on humidity would necessitate dispensing the crystals into air that is saturated with respect to ice but no requirement for 100 percent RH(relative humidity) was found. In fact, the lower limit varies with temperature linearly from about 95 percent RH at -5 degrees Celsius to 75 percent RH at -30 degrees Celsius. Preparation of small …
State Financing Alternatives For Water Projects Required To Support Energy Development In The Western Energy Development Area, Daniel H. Hoggan, Kirk R. Kimball, Edward H. Allen, Jay M. Bagley, Richard L. Dewsnup, Herbert H. Fullerton
State Financing Alternatives For Water Projects Required To Support Energy Development In The Western Energy Development Area, Daniel H. Hoggan, Kirk R. Kimball, Edward H. Allen, Jay M. Bagley, Richard L. Dewsnup, Herbert H. Fullerton
Reports
No abstract provided.
A Study Of Feasibility Of State Water User Fees For Financing Water Development, Daniel H. Hoggan, O. W. Asplund, J. C. Anderson, D. G. Houston
A Study Of Feasibility Of State Water User Fees For Financing Water Development, Daniel H. Hoggan, O. W. Asplund, J. C. Anderson, D. G. Houston
Reports
Water user fees imposed by a state on major water uses is a possible new alternative source of state water development funds. A fee, similar to an excise tax, might be charged for the use of the water resource per se, which in a number of states is declared to be the property of the public of the state. States generally have not employed such fees as a source of operating funds for water agencies or of development capital. Only in the area of water based recreation-fishing, coating, camping, etc.—have states extensively employed user fees. The revenues from these fees, …
Evaluation Of Southern And Central Utah Cloud Seeding Program, Geoffrey E. Hill
Evaluation Of Southern And Central Utah Cloud Seeding Program, Geoffrey E. Hill
Reports
An evaluation of a winter operational-type cloud seeding project in Utah is made by developing meteorological predictors of target precipitation. Twenty-four hour precipitation amounts in seven unseeded years are matched with 12:00 GMT rawinsonde data to form predictor-predictand relationships. Application of the predictors to the first two years of the project indicates that the observed seeded precipitation is about what would be found in the absence of seeding.
Seedability Of Winter Orographic Storms In Utah, Geoffrey E. Hill
Seedability Of Winter Orographic Storms In Utah, Geoffrey E. Hill
Reports
The primary objective of this research has been to collect and analyze data from (randomized) seeded and unseeded winter storms over the Wasatch Mountains for the purpose of developing and designing cloud seeding technology. Two field programs were conducted sequentially; the first was done by airborne seeding and the second by seeding from mountaintop generators. Analysis of precipitation estimators based upon radar and/or rawinsonde data and target precipitation show that increased precipitation due to seeding may occur under certain meteorological conditions. Favorable conditions were found when the supercooled water concentration as measured by aircraft icing rates was high. Precipitation in …
Series Intermittent Sand Filtration Of Wastewater Lagoon Effluents, David W. Hill, J. H. Reynolds, D. S. Filip, E. J. Middlebrooks
Series Intermittent Sand Filtration Of Wastewater Lagoon Effluents, David W. Hill, J. H. Reynolds, D. S. Filip, E. J. Middlebrooks
Reports
Previous researches have found single stage intermittent sand filtration to be a feasible and economic means of upgrading wastewater lagoon effluent to meet future standards. However the major constraint on their use has been the length of the filter runs. Laboratory scale and pilot-scale series intermittent sand filtration of wastewater lagoon effluents has been found to substantially increase the length of filter runs as well as produce a high quality effluent able to meet future standards. Higher loading rates were round to be possible with series intermittent sand filtration. The operation consistently produced an effluent meeting present Utah “Class C” …
Proceedings Of The Utah Water Pollution Control Association Annual Meeting 1977, James H. Reynolds, Donna H. Falkenborg
Proceedings Of The Utah Water Pollution Control Association Annual Meeting 1977, James H. Reynolds, Donna H. Falkenborg
Reports
Preface: This volume is the first published proceeding of the Utah Water Pollution Associations Annual Meeting. The Technical Program of the Annual Meeting was divided into five separate sessions. The program was developed to attract individuals concerned with management, design and operation of wastewater treatment facilities. Special emphsis was given to the design and operation of wastewater filtration devices. Unfortunately, four papers are not included in the proceedings because the authors failed to meet the submission deadline. These papers are (1) "Utah Discharge Requirements" by Calvin Sudweeks, (2) "Chlorine, Califorms, 1977 Standards and you" by Robert A. Sperling, (3) "Panel …
Performance Evaluation Of An Existing Seven Cell Lagoon System, James H. Reynolds, Ralph E. Swiss, Christine A. Macko, E. Joe Middlebrooks
Performance Evaluation Of An Existing Seven Cell Lagoon System, James H. Reynolds, Ralph E. Swiss, Christine A. Macko, E. Joe Middlebrooks
Reports
No abstract provided.
Water Flow Patterns In Heterogeneous Soils Under Trickle Irrigation, Abdolhossien Nassehzadeh-Tabrizi, Roland W. Jeppson, Lyman S. Willardson
Water Flow Patterns In Heterogeneous Soils Under Trickle Irrigation, Abdolhossien Nassehzadeh-Tabrizi, Roland W. Jeppson, Lyman S. Willardson
Reports
No abstract provided.
Growth And Uptake Dynamics Of Selenastrum Capricornutum Parameterized By Percent Nitrogen, Ronald F. Malone, Kenneth A. Voos, William J. Grenney
Growth And Uptake Dynamics Of Selenastrum Capricornutum Parameterized By Percent Nitrogen, Ronald F. Malone, Kenneth A. Voos, William J. Grenney
Reports
Batch cultures of
The Virgin River Basin Study: A Regional Approach To Multiobjective Planning For Water And Related Resources, John E. Keith, Jim Mulder, Trevor C. Hughes, V. A. Narasimhan, Lance Rovig, Karl Eriksen, Don D. Fowler, Lucinda Borchard, Kirk Kimball, Spence Ballard, K. S. Turna, Daniel H. Hoggan
The Virgin River Basin Study: A Regional Approach To Multiobjective Planning For Water And Related Resources, John E. Keith, Jim Mulder, Trevor C. Hughes, V. A. Narasimhan, Lance Rovig, Karl Eriksen, Don D. Fowler, Lucinda Borchard, Kirk Kimball, Spence Ballard, K. S. Turna, Daniel H. Hoggan
Reports
A joint research effort by the Utah Water Research Laboratory and the Nevado Center for Water Resources Research applied two multiobjective planning models to the Virgin River Basin in order to test the efficiency and practicality of applying such tools in water resrouces planning. The surrogate Worth Trade-off (SWT) method couples mathematical optimization to quantify trade offs among noncommensurable objectives with interviews to compare public preferences with respect to these trade offs. PROPDEMM uses information on interest group objectives, balues, willingness to pay, influence, lebel of information, etc. to compare the political feasibility of alternative courses of action. Both models …
A Model Of Environmental Transport Of Heavy Metals Originating From Stack Derived Particulate Emission In Semi-Arid Regions, J. J. Jurinak, William J. Grenney, Gene L. Wooldridge, J. Paul Riley, R. J. Wagenet
A Model Of Environmental Transport Of Heavy Metals Originating From Stack Derived Particulate Emission In Semi-Arid Regions, J. J. Jurinak, William J. Grenney, Gene L. Wooldridge, J. Paul Riley, R. J. Wagenet
Reports
Executive Summary:
Report On Current Data And Uses Of Interstellar Molecules, Joe Hillegas
Report On Current Data And Uses Of Interstellar Molecules, Joe Hillegas
Undergraduate Honors Capstone Projects
The problem presented by polyatomic molecules in interstellar space were first suggested by the detection of CN, CH, and CH+ just before 1940; but it was not until the discovery of radio emission from NH3 in 1968 that radio observatories began to devote considerable time to searches for such molecules. The quest has been an extremely successful one, with well over thirty molecules listed to date and more being added to the collection every month. (The list in the appendix gives some idea of the discoveries, but makes no boast as to its completeness.)
Down At The Hospital, Glenn E. Dickey
Down At The Hospital, Glenn E. Dickey
Undergraduate Honors Capstone Projects
Down at the hospital the other day the ambulance brought us an old German lady who had fallen down on Main Street. We admitted her in east wing and found no bodily damage, but did discover that she was thoroughly drunk. We removed her warmed-over cabbage tennis shoes and were in the process of replacing her Salvation Army discount dress with a hospital gown when three or four bags of Hershey's chocolate kisses fell out from some hidden foyer of her person. All the while she was yelling about her husband's federal pension and how her bishop and the police …
Anglo-American Relations During The Civil War: The Trent Affair, Marvin Bryan Moorhead
Anglo-American Relations During The Civil War: The Trent Affair, Marvin Bryan Moorhead
Undergraduate Honors Capstone Projects
In the fall of 1861 the Confederacy decided to send a second diplomatic mission to Europe: James Mason to London and John Slidell to Paris. Mason and Slidell slipped through the Union blockade and booked passage from Havana to London on the Trent, a British mail packet. On November 8, 1861 Charles Wilkes, captain of the Union warship San Jacinto, stopped the Trent in the Bahama Channel. Instead of escorting the vessel to a Union prize court, which could legally judge who or what on board the British vessel constituted contraband, he seized the two emissaries and let the Trent …
Survey Of The History, Development, And Medical Uses Of Chinese Acupuncture, Kendell G. Hansen
Survey Of The History, Development, And Medical Uses Of Chinese Acupuncture, Kendell G. Hansen
Undergraduate Honors Capstone Projects
It is difficult to pick up a magazine, medical or otherwise, that does not include an article about the Chinese method of diagnosis and treatment known as acupuncture. This ancient technique, about which there is so much current interest, is reputed to have originated nearly 30 centuries ago when a Chinese warrior emperor made the observation that certain arrow wounds caused pain to disappear in remote parts of the body.
During World War II, the new China of the Red Army rediscovered the effectiveness of acupuncture in the treatment of wounded or sick soldiers during combat conditions. Today, Chinese medical …
Determinants Of U.S. Policy Toward China 1925-1937, Kevin Anderson
Determinants Of U.S. Policy Toward China 1925-1937, Kevin Anderson
Undergraduate Honors Capstone Projects
The analysis of American foreign policy has long been a favorite subject for historians, and the U.S. policy toward China during the 1920s and 1930s has received its fair share of attention. Most authors dealing with this period have been content to trace carefully the course taken by U.S. policy makers during this period, pointing out where they went wrong, or defending the policy as being the best possible given the situation. Some authors have presented biographical sketches of various major policymakers, analyzing the role played by their policy maker. Nearly all include reasons a particular policy was followed or …