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Articles 291931 - 291960 of 302419

Full-Text Articles in Physical Sciences and Mathematics

Hydrologic Inventory Of The Bear River Study Unit, Frank W. Haws Jan 1973

Hydrologic Inventory Of The Bear River Study Unit, Frank W. Haws

Reports

Purpose and Scope of Study.

The 1963 Utah State Legislature authorized the Utah Water and Power Board (now the Utah Division of Water Resources) to develop a state water plan in order to give coordination and direction to the activities of all state and federal agencies concerned with Utah's water resources. To facilitate the development of this plan, a proposal was submitted through the State Planning Coordinator in the Governor's Office to the Urban Renewal Administration of the Housing and Home Finance Agency. Funding was approved effective May 19, 1966, under the Urban Planning Assistance Program authorized by Section 701 …


Bibliography Of Latin American Agricultural Production And Development. Volume I: Inputs And Outputs In Crop And Livestock Production, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely Jan 1973

Bibliography Of Latin American Agricultural Production And Development. Volume I: Inputs And Outputs In Crop And Livestock Production, Allen Lebaron, Samuel Daines, Percy Aitken, Ruby Johnson, Angeles Ely

Reports

No abstract provided.


A Review Of Utah Water Research Laboratory, Utah Water Research Laboratory Jan 1973

A Review Of Utah Water Research Laboratory, Utah Water Research Laboratory

Reports

No abstract provided.


Sorption Kinetics Part I: A Laboratory Investigation Of Six Proposed Rate Laws Using Batch Reactors, David W. Hendricks, Laxman G. Kuratti Jan 1973

Sorption Kinetics Part I: A Laboratory Investigation Of Six Proposed Rate Laws Using Batch Reactors, David W. Hendricks, Laxman G. Kuratti

Reports

Six proposed rate equations for sorption kinetics have been investigated by laboratory batch experiments involving some 270 individual “runs” to determine sorption uptake with time for varying conditions of initial sorbate concentration, temperature, and sorbent species. The sorbate selected was rhodamine-B dye, used because it will sorb readily and is easily measured. Two sorbents, Dowex 50 resin, and Filtrasorb 200 activated carbon were used. Temperature conditions were 10, 20, 30, and 40°C, and concentrations ranged from .0008 to 400 micrograms per ml, rhodamine-B. Analysis of data was computer automated, requiring as input only test conditions, instrument readings, dilutions, and corresponding …


Social, Economic, Environmental, And Technical Factors Influencing Water Reuse, A. Bruce Bishop, Suravuth Pratishthananda, John Keith, Craig Colton, A. Berry Crawford Jan 1973

Social, Economic, Environmental, And Technical Factors Influencing Water Reuse, A. Bruce Bishop, Suravuth Pratishthananda, John Keith, Craig Colton, A. Berry Crawford

Reports

A growing population together with rising per capita income has resulted in increased demand for water for virtually all uses. At the same time there has been increased public concern for maintaining the quality of streams for recreation, sight-seeing, and other social uses, and to conserve environmental values. A partial answer to these conflicts in water use and management is more extensive waste water reclamation and reuse. Heretofore, water salvage and reuse has been mainly practiced in specific operational cases, such as recycling industrial process water, or on an ad hoc basis, such as a series of diversions and subsequent …


Protection Of Our Fragile Upper Atmosphere, Clayton Clark Jan 1973

Protection Of Our Fragile Upper Atmosphere, Clayton Clark

Faculty Honor Lectures

Termination of U.S. government support for the Supersonic Transport, SST, may eventually cost the United States its leadership in aviation and billions of dollars in international trade losses, yet if the world wide SST program is allowed to continue, the costs to mankind as a result of damage to environmental resources could be much higher. The decision to terminate the project was heavily based upon concern for possible changes in the properties of the upper atmosphere as a result of SST operations in that realm, with consequent danger to plant and animal life on the Earth below. Briefly, the concern …


Decomposition And Mineralization In An Artemisia Tridentata Community In Northern Nevada, Peter L. Comanor Jan 1973

Decomposition And Mineralization In An Artemisia Tridentata Community In Northern Nevada, Peter L. Comanor

Memorandum

No abstract provided.


Model Of Net Co2 Exchange Rate For C-4 Grasses, G. L. Cunningham, F. R. Balding, J. P. Syvertsen Jan 1973

Model Of Net Co2 Exchange Rate For C-4 Grasses, G. L. Cunningham, F. R. Balding, J. P. Syvertsen

Memorandum

No abstract provided.


Biomass And Nutrients In Desert Shrub Ecosystems, James O. Klemmedson, Edwin L. Smith Jan 1973

Biomass And Nutrients In Desert Shrub Ecosystems, James O. Klemmedson, Edwin L. Smith

Memorandum

No abstract provided.


Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, G. R. Mehuys, L. H. Stolzy, J. Letey Jr., L. V. Weeks Jan 1973

Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, G. R. Mehuys, L. H. Stolzy, J. Letey Jr., L. V. Weeks

Memorandum

No abstract provided.


Gas Exchange, Translocation And Root Growth Of Cold Desert Plants, M. M. Caldwell, H. H. Wiebe, E. J. Depuit, Osvaldo Fernandez, L. B. Camp, Marcee Fareed Jan 1973

Gas Exchange, Translocation And Root Growth Of Cold Desert Plants, M. M. Caldwell, H. H. Wiebe, E. J. Depuit, Osvaldo Fernandez, L. B. Camp, Marcee Fareed

Memorandum

No abstract provided.


Special Purpose Models, D. Wilkin Jan 1973

Special Purpose Models, D. Wilkin

Memorandum

No abstract provided.


Demographic And Bioenergetic Studies Of Cutworms In Curlew Valley, W. J. Hanson, G. F. Knowlton Jan 1973

Demographic And Bioenergetic Studies Of Cutworms In Curlew Valley, W. J. Hanson, G. F. Knowlton

Memorandum

No abstract provided.


Population Studies Of The Desert Cottontail (Sylvilagus Auduboni) And Black-Tailed Jackrabbit (Lepus Californicus) In The Sonoran Desert, C.R. Hungerford, C.H. Lowe, R.L. Madsen Jan 1973

Population Studies Of The Desert Cottontail (Sylvilagus Auduboni) And Black-Tailed Jackrabbit (Lepus Californicus) In The Sonoran Desert, C.R. Hungerford, C.H. Lowe, R.L. Madsen

Memorandum

No abstract provided.


Foraging Activity Of The Leaf-Cutter Ant, Acromyrmex Versicolor, In Relation To Season, Weather And Colony Condition, F. G. Werner Jan 1973

Foraging Activity Of The Leaf-Cutter Ant, Acromyrmex Versicolor, In Relation To Season, Weather And Colony Condition, F. G. Werner

Memorandum

No abstract provided.


Measurements Of Carbon And Nitrogen Changes In Soil, Eugene E. Staffeldt, Kristina Bemond Vogt Jan 1973

Measurements Of Carbon And Nitrogen Changes In Soil, Eugene E. Staffeldt, Kristina Bemond Vogt

Memorandum

No abstract provided.


Distribution Of Mictroorganisms In Desert Soil, A.T. Vollmer, F. Au, S.A. Bamberg Jan 1973

Distribution Of Mictroorganisms In Desert Soil, A.T. Vollmer, F. Au, S.A. Bamberg

Memorandum

No abstract provided.


Growth And Development Of Sitanion Hystrix And Poa Sandbergii, M. Hironaka, E. W. Tisdale Jan 1973

Growth And Development Of Sitanion Hystrix And Poa Sandbergii, M. Hironaka, E. W. Tisdale

Memorandum

No abstract provided.


Terrestrial Models: Plant Processes (Version I, Ii, Iii), W. Valentine Jan 1973

Terrestrial Models: Plant Processes (Version I, Ii, Iii), W. Valentine

Memorandum

No abstract provided.


Tucson Validation Sites Report, John L. Thames Jan 1973

Tucson Validation Sites Report, John L. Thames

Memorandum

No abstract provided.


Consumption Of Larrea By Chewing Insects, F. G. Werner, A. R. Olsen Jan 1973

Consumption Of Larrea By Chewing Insects, F. G. Werner, A. R. Olsen

Memorandum

No abstract provided.


Respiratory Metabolism Of Utah Chub (Gila Atraria), R. H. Kramer, P. K. Rajagopal Jan 1973

Respiratory Metabolism Of Utah Chub (Gila Atraria), R. H. Kramer, P. K. Rajagopal

Memorandum

No abstract provided.


Annual Nutrient And Energy Intake Of The Desert Cottontail, Sylvilagus Auduboni, Under Natural Conditions, H G. Reynolds, F. J. Turkowski, R. M. Chew Jan 1973

Annual Nutrient And Energy Intake Of The Desert Cottontail, Sylvilagus Auduboni, Under Natural Conditions, H G. Reynolds, F. J. Turkowski, R. M. Chew

Memorandum

No abstract provided.


Sensitivity Analysis, I. Noy-Meir, D. Goodall Jan 1973

Sensitivity Analysis, I. Noy-Meir, D. Goodall

Memorandum

No abstract provided.


Distillation-Condensation Of Water And Nutrient Movement In A Desert Ecosystem, N. Stark Jan 1973

Distillation-Condensation Of Water And Nutrient Movement In A Desert Ecosystem, N. Stark

Memorandum

No abstract provided.


Biology Of Nematodes In Desert Ecosystems, R. Mankau, S. A. Sher, D. W. Freckman Jan 1973

Biology Of Nematodes In Desert Ecosystems, R. Mankau, S. A. Sher, D. W. Freckman

Memorandum

No abstract provided.


Diest, Food Preference And Reproductive Cycles Of Some Desert Rodents, Russell P. Balda, Clark E. Franz, O.J. Reichman, Kent M. Van De Graaff Jan 1973

Diest, Food Preference And Reproductive Cycles Of Some Desert Rodents, Russell P. Balda, Clark E. Franz, O.J. Reichman, Kent M. Van De Graaff

Memorandum

No abstract provided.


Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, F. B. Turner, P. A. Medica, D. D. Smith Jan 1973

Reproduction And Survivorship Of The Lizard, Uta Stansburiana, And The Effects Of Winter Rainfall, Density And Predation On These Processes, F. B. Turner, P. A. Medica, D. D. Smith

Memorandum

No abstract provided.


Role Of Orthoporus Ornatus Millipedes In A Desert Ecosystem, C. S. Crawford, R. C. Wooten Jr. Jan 1973

Role Of Orthoporus Ornatus Millipedes In A Desert Ecosystem, C. S. Crawford, R. C. Wooten Jr.

Memorandum

No abstract provided.


Gas Exchange And Productivity For Opuntia Spp., Irwin P. Ting, H. B. Johnson, T. A. Yonkers, S. R. Szarek Jan 1973

Gas Exchange And Productivity For Opuntia Spp., Irwin P. Ting, H. B. Johnson, T. A. Yonkers, S. R. Szarek

Memorandum

No abstract provided.