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Articles 49351 - 49380 of 52761
Full-Text Articles in Entire DC Network
#58 - Survival In The Wilderness, Department Of Health Education
#58 - Survival In The Wilderness, Department Of Health Education
Keys to Total Health
- Survival in the Wilderness
- Finding Directions
- Into the Wilderness!
- Foods in the Wilderness
- Surviving A Disaster
- Quiz
A Comparative Water Quality Study Of Man-Made Drainage And Natural Streams, Kent W. Boyum
A Comparative Water Quality Study Of Man-Made Drainage And Natural Streams, Kent W. Boyum
Journal of the Minnesota Academy of Science
The effects of man-made drainage systems on the water quality of receiving bodies Is relatively unknown. During the ice-free season of 1979, thirteen drainage ditches and f our rivers were sampled at intervals of three to eight days. With increasing flow, total orthophosphatephosphorous, total Kjeldahl-nitrogen, nitrate-nitrogen and total dissolved solids increased, but not proportionately to f low, with total orthophosphate-phosphorous showing the least proportionality. Variation was observed in each ditch and river when broken down seasonally for each parameter. Generally, when the percentage of flow was greater in one of the three seasons, the percentage of each of the other …
Land-Cover Changes In A River Valley In Blue Earth County, Minnesota, 1938-1974, Corrie Schaffer Cowley
Land-Cover Changes In A River Valley In Blue Earth County, Minnesota, 1938-1974, Corrie Schaffer Cowley
Journal of the Minnesota Academy of Science
The boundary of the Blue Earth River Valley was determined by stereoscopic viewing of 1938-39 aerial photographs. The same boundary was then drawn on corresponding 1974 photographs. All area within the river valley was assigned to one of four land-cover. Comparison of 1938-39 to 1974 shows a decrease of 19 percent in river area, an increase of one percent in row crop area, an increase of 52 percent in tree area, and a decrease of 45 percent in scrub area.
A Survey Of Water Flow In Drainage Ditches And Streams In South Central Minnesota, Clay Pierce, Bill Thompson
A Survey Of Water Flow In Drainage Ditches And Streams In South Central Minnesota, Clay Pierce, Bill Thompson
Journal of the Minnesota Academy of Science
Discharge was monitored on 13 agricultural drainage ditches and 4 small rivers in south central Minnesota. Derived data were categorized by response to hydrologic events and stream order. Stream order was found to be the most reliable predictor of hydrologic event response. Peak flows in drainage ditches were found to correspond to peak flows in rivers.
Geophysical Well-Log Measurements In Three Drill Holes At Salt Valley, Utah, Jeffrey J. Daniels, Robert J. Hite, James H. Scott, U.S. Geological Survey
Geophysical Well-Log Measurements In Three Drill Holes At Salt Valley, Utah, Jeffrey J. Daniels, Robert J. Hite, James H. Scott, U.S. Geological Survey
All U.S. Government Documents (Utah Regional Depository)
Three exploratory drill holes were drilled at Salt Valley, Utah, to study the geologic, physical, geochemical, and hydrologic properties of the evaporite sequence in the Permian Paradox Member of the Hermosa Formation. The results of these studies will be used to help to determine the suitability of salt deposits in the Paradox basin as a storage medium for radioactive waste material.
An Analysis Of The Irreversible Thermodynamics Model For Coupled Heat And Moisture Transport Phenomena In Unsaturated Porous Media, J. A. Havens
Arkansas Water Resources Center Technical Reports
The Irreversible Thermodynamics-based model for the description of coupled heat and moisture transfer, attributed to Cary and Taylor, was analyzed. The transport coefficients appearing in the model equations were independently determined, and the equations were numerically integrated to predict temperature and moisture content profiles for a closed system of water unsaturated glass beads. An experimental investigation of the moist glass beads medium provided measurements of steady-state profiles of local temperatures and moisture content. These data, when compared with model predictions, indicated the validity of the Irreversible Thermodynamics approach. The coupling coefficient relating thermal gradients to moisture flux was found to …
Report No 40 - Commercially Exploited Vacsular Plants Native In Western Australia: Census, Atlas And Preliminary Assessment Of Conservation Status, Barbara L. Rye, S. D. Hopper, L. E. Watson
Report No 40 - Commercially Exploited Vacsular Plants Native In Western Australia: Census, Atlas And Preliminary Assessment Of Conservation Status, Barbara L. Rye, S. D. Hopper, L. E. Watson
Fisheries Research Reports
A census and atlas is provided of 1 119 native Western Australian plant species which were commercially exploited during 1977-79 in the cut plant, nursery or seed trades. The exploited species are concentrated in the vicinities of Perth and Albany, the two matin centres for the wildflower industry. Preliminary assessments of the conservation status of the exploited species are provided. Approximately r200 species are regarded as being rare, geographically or poorly collected, and further studies are recommended for these species to determine whether they are in danger of overexploitation.
The Probe, Issue 3 - January 1980
The Probe, Issue 3 - January 1980
The Probe: Newsletter of the National Animal Damage Control Association
Contents: GROWING PAINS MORE WAYS TO SKIN A CAT One of the five pieces of anti-trap legislation pending in the 96th Congress really tight trap cover where you can't return to check a trap in time to conform with regulations LIST OF HONORABLE HEROES NADCA CHARTER MEMBERSHIP LIST
Fisheries Report No 39 - The Wildlife Of The Proposed Toolonga Nature Reserve, Shark Bay Shire, Western Australia, A. A. Burbidge, P. J. Fuller, K. Cashin
Fisheries Report No 39 - The Wildlife Of The Proposed Toolonga Nature Reserve, Shark Bay Shire, Western Australia, A. A. Burbidge, P. J. Fuller, K. Cashin
Fisheries Research Reports
Following a Cabinet endorsed recommendation by the Environmental Protection Authority in 1975, an area of vacant Crown Zand (the Toolonga Area) was examined during April and September, 1978.
The geology, soils and vegetation of the area are described and annotated lists of mammals, birds, amphibians and reptiles are presented. A small part of the area lies in the South West Botanical Province (Irwin District) but most is in the Eremaean Botanical Province (Carnarvon District). The vertebrate fauna is a mixture of south-western, Shark Bay and arid zone species, but the last predominate.
The Toolonga Area provides an opportunity to protect …
Evaluation Of Areas For Off-Road Recreational Motorcycle Use, Volume I: Evaluation Method, United States Army Corps Of Engineers
Evaluation Of Areas For Off-Road Recreational Motorcycle Use, Volume I: Evaluation Method, United States Army Corps Of Engineers
All U.S. Government Documents (Utah Regional Depository)
To answer user demands for more areas on which to operate off-road recreational motocycles (trailbikes), and to respond to Presidential Executive Orders which require that Federally-owned lands be evaluated for such use, Army land managers need a systematic way of determining land use suitability. This report describes the method developed by the U.S. Army Construction Engineering Research Laboratory (CERL) to help installation personnel comply with the policies, procedures, and criteria of Army Regulation (AR) 210-9, Use of Off-Road Vehicles on Army Lands.
Evaluation Of Areas For Off-Road Recreational Motorcycle Use, Volume Ii: Alternate Soil Suitability Determination Methods, United States Army Corps Of Engineers
Evaluation Of Areas For Off-Road Recreational Motorcycle Use, Volume Ii: Alternate Soil Suitability Determination Methods, United States Army Corps Of Engineers
All U.S. Government Documents (Utah Regional Depository)
Volume I of this report described how to evaluate the soil suitability of areas for off-road recreational motorcycle (trailbike) use on land under the jurisdiction of the Department of the Army. This soil evaluation method relied on the availability of a recent, detailed soil survey. Since such surveys are not always available, Volume II describes alternative methods of evaluating the suitability of soils for trailbike use. Volume II illustrates and describes seven alternative soil evaluation methods. Each method is defined as more or less useful in terms of its reliability and the ease and speed by which its results may …
Laster Photoacoustic Detection Of Water Pollutants - Phase I, Gregory J. Salamo
Laster Photoacoustic Detection Of Water Pollutants - Phase I, Gregory J. Salamo
Arkansas Water Resources Center Technical Reports
No abstract provided.
Land Capability Study Of (Sandy) Soils, North West Of The Ivanhoe Plains, Kununurra, W.A, Jim Dixon, W F. Holman
Land Capability Study Of (Sandy) Soils, North West Of The Ivanhoe Plains, Kununurra, W.A, Jim Dixon, W F. Holman
Land resources series
This survey was concducted at the request of Colonial Sugar Refineries as a co-operative effort involving the West Australian State Government Departments of Agriculture and Lands and Surveys. C.S.R. are investigating the feasibility of sugar cane production in the Ord River Project Irrigation Area. Part of the project could involve cane production on currently undeveloped sandy soils held under pastoral lease. The object of developing sandy soils is twofold:- i) the sandy soils will require overhead irrigation and it will be possible to mix industrial wastes with the irrigation waters for disposal; ( ii) sandy soils should be trafficable sooner …
Botanical And Ecological Aspects Of Coastal Raised Peatlands In Maine : And Their Relevance To The Critical Areas Program Of The State Planning Office, Ian A. Worley
Maine Collection
Botanical and Ecological Aspects of Coastal Raised Peatlands in Maine : and Their Relevance to the Critical Areas Program of the State Planning Office.
by Ian A. Worley
A Report Prepared for the Maine Critical Areas Program, State Planning Office, 184 State Street, Augusta, Maine 04333.
Planning Report No. 69 (January 1980)
Contents: Foreword / Abstract / Table of Contents / List of Figures / List of Tables / Acknowledgements / Introduction / Natural History and Ecology of the Coastal Raised Peatlands / Selection of Coastal Peatlands Recommended for Evaluation by the Critical Areas Program / General Evaluation of Coastal …
James Eights, Albany Naturalist: New Evidence, Char Miller, Naomi Goldsmith
James Eights, Albany Naturalist: New Evidence, Char Miller, Naomi Goldsmith
Pomona Faculty Publications and Research
Eights's contributions to scientific study and to the popularization of science have been understated and misunderstood.
The Rush Creek – Lisco Structural Basin, Garden And Morrill Counties, Nebraska, Robert F. Diffendal Jr.
The Rush Creek – Lisco Structural Basin, Garden And Morrill Counties, Nebraska, Robert F. Diffendal Jr.
School of Natural Resources: Faculty Publications
Detailed field mapping of outcrops in southern Garden and Morrill counties, Nebraska, has revealed a drop of more than 60 m (200 ft) in 4.8 km (3 mi) in the elevation of the contact between the Brule Formation and the Ogallala Group as exposed on the east side of Rush Creek. Beds of silt, sand, siltstone, and volcanic ash locally dip to the northwest at angles up to 8.5'. The contact between the two formations cannot be seen on the west side of Rush Creek but beds in the Ogallala Group there dip to the north and northeast. Rocks north …
Leslie Population Estimate For A Large Lake, Jack Peterson, Melvin Taylor, Allan Hanson
Leslie Population Estimate For A Large Lake, Jack Peterson, Melvin Taylor, Allan Hanson
Nebraska Game and Parks Commission: Staff Research Publications
The accuracy of a population estimate made by the Leslie removal method was evaluated for adult northern pike (Esox lucius) in a 288-hectare lake. The Leslie estimate of 6,290 fish was within 1% of that obtained from direct enumeration.
The Limnological Status Of Lake Mead And Lake Mohave Under Present And Future Powerplant Operations Of Hoover Dam, Larry J. Paulson, John R. Baker, James E. Deacon, U.S. Water And Power Resources Service
The Limnological Status Of Lake Mead And Lake Mohave Under Present And Future Powerplant Operations Of Hoover Dam, Larry J. Paulson, John R. Baker, James E. Deacon, U.S. Water And Power Resources Service
Publications (WR)
The ever-increasing demand for energy in the southwest has led to a search for additional sources of power generation. Coal-fired powerplants currently provide most of the baseline energy in the southwest, but this must be supplemented with hydroelectric power during periods of peak demand. In order to provide additional peaking power, the U.S. Bureau of Reclamation is considering a number of projects to modify existing hydroelectric facilities, or add new facilities in the Lake Mead Recreation Area. The Hoover Powerplant Modification Feasibility Investigation was authorized by Congress on December 16, 1975 to determine the feasibility of: (i) adding one or …
The Relationship Of Food Conversion Efficiency And Growth Potential In Juvenile Mosquitofish, Gambusia Affinis, Joseph J. Cech Jr., Michael J. Massingill, Wayne A. Wurtsbaugh
The Relationship Of Food Conversion Efficiency And Growth Potential In Juvenile Mosquitofish, Gambusia Affinis, Joseph J. Cech Jr., Michael J. Massingill, Wayne A. Wurtsbaugh
Watershed Sciences Faculty Publications
New information concerning respiratory metabolic rates of juvenile mosquitofish (i = 915 mg 02 kg-1 h-1 at 20° C) was applied to existing data on mosquitofish respiration and combined with findings on growth and food consumption rates to determine percentages of net ingested energy used for growth and respiration over a 10- 35° C temperature range. The energy percentage used by mosquitofish for respiration was minimized at 25-30° C while that used for growth (= food conversion efficiency) was maximized at the same temperature. A calculated growth potential index, derived from an overall energy balance equation, was also maximized at …
User Manual For The Probabilistic Stream Simulation And Assessment Model (Pssam), Brad A. Finney, David S. Bowles, Michael P. Windham
User Manual For The Probabilistic Stream Simulation And Assessment Model (Pssam), Brad A. Finney, David S. Bowles, Michael P. Windham
Reports
No abstract provided.
Evaluation Of Mutagenicity Testing Of Extracts From Processed Oil Shale, Judith G. Dickson, V. Dean Adams
Evaluation Of Mutagenicity Testing Of Extracts From Processed Oil Shale, Judith G. Dickson, V. Dean Adams
Reports
The Ames/
Weather Modification By Cloud Seeding, Arnett S. Dennis
Weather Modification By Cloud Seeding, Arnett S. Dennis
Reports
It is an understatement to say that people are confused about cloud seeding. While it has been called "the crime of the century" and outlawed in Pennsylvania, the governments of the dry, western part of the United States continue to spend tax revenues on cloud seeding to increase water supplies. During the past five years, I have talked with officials responsible for decisions regarding cloud seeding programs in about 15 states of the U.S.A., in a dozen other countries, and in the World Meteorological Organization. Some of the officials involved are experts in atmospheric physics, but most are not. Members …
Evaluation Of Livestock Runoff As A Source Of Water Pollution In Northern Utah, Stephen T. Wieneke, Dennis B. George, Daniel S. Filip, Brad Finney
Evaluation Of Livestock Runoff As A Source Of Water Pollution In Northern Utah, Stephen T. Wieneke, Dennis B. George, Daniel S. Filip, Brad Finney
Reports
A mathematical model was developed to predict the impact of dairy and beef cattle feedlot runoff on receiving streams. The mathematical expressions used in the model describing runoff quantity and quality were not only a function of single rain or snow precipitation events but also consecutive events prior to the runoff occurrence. The runoff quantity and quality were also a function of feedlot surface. Computer simualtions indicate that pollutants from feedlot runoff may have a significant impact on receiving streams during winter months. Runoff from feedlots located within the study area, however, had little impact on water quality in the …
Model Of Drawdown In Well Fields Influenced By Boundaries: Technical Description And User's Manual, Najwan T. Shareef, David S. Bowles
Model Of Drawdown In Well Fields Influenced By Boundaries: Technical Description And User's Manual, Najwan T. Shareef, David S. Bowles
Reports
This model is designed to calculate the drawdown of a piezometric surface or water table at a given point of interest in a well field. Many different well and aquifer hydraulic conditions can be considered. The effect of field boundaries is solved by the image well theory. Many points of interest, well (recharge or injection), boundaries (barrier or recharge), and time increments as well as constant and variable pumping rate case have been included in the model. The drawdown at a point of interest can be decomposed into the following compenents for each real well due to the effect of: …
Evaluation Of Particular Mulches As Plant Growth Media And Erosion Inhibitors, C. Earl Israelson, William F. Campbell, Eugene K. Israelsen, Ronald V. Canfield, David Ianson
Evaluation Of Particular Mulches As Plant Growth Media And Erosion Inhibitors, C. Earl Israelson, William F. Campbell, Eugene K. Israelsen, Ronald V. Canfield, David Ianson
Reports
Introduction: Increasing public awareness of the desireability of protecting the environment from soil erosion caused by wind and water has centered attention on large construction projects such as highways and housing subdivisions, as well as on individual building sites and parking lots. If unattended, sediment produced from these areas pollutes surface water, restricts drainage, fills reservoirs, damages adjacent land, and upsets the natual ecology of lakes and streams. The search continues for products and practices that will prevent or lessen the amount of sediment leaving construction sites. Products currently in use include chemical as well as organic materials, and they …
Flood Damage Mitigation In Utah, L. Douglas James, Dean T. Larson, Daniel H. Hoggan, Terrence L. Glover
Flood Damage Mitigation In Utah, L. Douglas James, Dean T. Larson, Daniel H. Hoggan, Terrence L. Glover
Reports
Utah is subjected to flash flooding in mountain canyons, mudflows and shallow water flooding on lowlands at the canyon outlets, storm water flooding after thunderstorms in urban areas, and prolonged periods of inundation in certain lowland areas during snowmelt periods. In response to these problems, individuals are making private land use and flood proofing decisions, larger communities have storm water collection programs, three federal agencies are involved in structural flood control, and the Federal Emergency management Agency is managing a National Flood Insurance Program designed to promote community floodplain management efforts. A framework was deceloped of the dynamically interactive feedback …
Municipal Water Resources Analysis For Area Potentially Impacted By Mx Missile Complex In Utah, Trevor C. Hughes, V. A. Narasimhan, William J. Grenney, L. Douglas James
Municipal Water Resources Analysis For Area Potentially Impacted By Mx Missile Complex In Utah, Trevor C. Hughes, V. A. Narasimhan, William J. Grenney, L. Douglas James
Reports
Scope of Report: This report analyzes the impact of the proposed MX Missile complex upon existing municipal water supply and waste treatment systems serving selected communitites either near the perimeter or within the Utah portion of the proposed MX complex boundary. As can be seen from the location map in Figure 1, possible sites for elements within the total MX missile complex have been identified in 14 Utah desert valleys in the five counties, from north to south, of Tooele, Juab, Millard, Beaver, and Iron. The 60,000 people, who live in these counties according to the 1975 census, are largely …
A Framework For Risk Analysis Of Earth Dams, Jon C. Howell, Loren R. Anderson, David S. Bowles, Ronald V. Canfield
A Framework For Risk Analysis Of Earth Dams, Jon C. Howell, Loren R. Anderson, David S. Bowles, Ronald V. Canfield
Reports
This purpose of this thesis is to present in a logical and straightforward manner, the types of probabilistic, deterministic and judgment methods which should be part f a risk analysis process for earth dam planning, design, construction and operation. In doing this, an attempt was made to include all of the elements (components of the risk analysis procedure defined herein) which were considered to be important. Descriptions of these elements as well as how they are used to estimate probabilities for the occurrence of each of three failure conditions (i.e. no failure, partial failure, complete failure) are also presented. Explanations …
Management Of The Hydrologic System In Areas Subject To Coal Mining Activities, Rollin H. Hotchkiss, Eugene K. Israelsen, J. Paul Riley
Management Of The Hydrologic System In Areas Subject To Coal Mining Activities, Rollin H. Hotchkiss, Eugene K. Israelsen, J. Paul Riley
Reports
Publicity given to the detrimental effects of mining activities on the environment has tended to overshadow somewhat the hydrologic opportunities and benfits that could be associated with these activities. For example, many areas disturbed by surface mining have proved to be excellent recharge areas for groundwater aquifers. The degree to which mine sites can be exploited to improve management of the hydrologic system depends on both the local geology and the mining techniques used. The report examines the effects of present mining activities on the associated hydrology system, and identifies specific mining procedures and management techniques which not only minimize …
A Preliminary Study On Expanding And Financing State Water Development, Daniel H. Hoggan, Kirk R. Kimball, Jay M. Bagley
A Preliminary Study On Expanding And Financing State Water Development, Daniel H. Hoggan, Kirk R. Kimball, Jay M. Bagley
Reports
The effects of recent energy price increases, domestic inflation rates, financial market fluctuations, and changing public attitudes toward federally sponsored water resource development and management have brought economic and financial consideratiosn to the forefront of Western water management issues. Recently enacted federal policies place increased responsibility on the states and localities for the development and management of their water resources. A response common to many of the western states has been to stengthen traditional, and often small, water financing and development programs. In creating and sustaining such a posture, however, state governments must address the important questions pertaining to the …