American Society of Civil Engineers

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Found 61 Records with the keyword term of "Isotopes"

2011  Effective Shear Strengths of Isotropic Spatially Variable Soil Masses

2011  Salinity Effects from Evaporation and Transpiration under Flood Irrigation

2011  Use of Environmental Isotopes to Determine Impacts on Wetlands Due to Lining of Irrigation Canals, Salton Sea Area, California

2011  Use of Stable Isotopes Deuterium and Oxygen-18 to Derive Evaporation from Flood Irrigation on the Basis of Pan Evaporation Techniques

2009  Carbon and Nitrogen Isotopic Measurements from Southern Appalachian Soils: Assessing Soil Carbon Sequestration under Climate and Land-Use Variation

2007  Preferential Flow in a Reclamation Cover: Hydrological and Geochemical Response

2006  Isotopic Fractionation of Tetrachloroethene Undergoing Biodegradation Supported by Endogenous Decay

2006  Use of Boron as a Tracer for Recycled Water in Brackish Aquifers

2005  Environmental Isotope Study on Recharge and Groundwater Residence Time in a covered Ordovician Carbonate Rock

2005  Using Stable Carbon and Nitrogen Isotope Analysis to Construct Food Web Models along the Truckee River

2000  Fertilizer 15N Presence in Lysimeter Drainage Water

1999  Use of Stable Isotopes for Tracking an Aragonite Beach Fill

1997  Nitrogen Isotopes in Groundwater as Indicator of Land Use

1997  On the Use of High-Performance Simulation in the Management of Groundwater Resources in Large Aquifer Systems

1996  Isotopic Systematics of Saline Waters at Äspö and Laxemar, Sweden

1996  Naturally-Occurring Chemical Analogues for Repository-Derived Radionuclides

1995  Applications of Isotopes to Tracing Sources of Solutes and Water in Shallow Systems

1995  Calcite Fracture Fillings as Indicators of Paleohydrology at the Äspö Hard Rock Laboratory, Sweden

1995  Characteristics of Spent Mox Fuel Resulting From Disposition of SFM and Potential Impacts on the CRWMS

1995  Comparative Repository Performance of Plutonium Forms - Initial Studies

1995  Outstanding Issues for Transuranic Waste Disposal at WIPP

1995  Packaging and Transportaton Issues Associated with Meeting the Spent Fuel Standard

1995  Radiocarbon Dating of Fossil Mollusk Shells in the Yucca Mountain Region

1994  Inferences of Paleoenvironment From Petrographic, Chemical and Stable-Isotope Studies of Calcretes and Fracture Calcites

1994  Isotope Systematics in Ground Water and Hydrogenic Deposits at ÄSPÖ, Sweden

1994  Isotopic Studies of Yucca Mountain Soil Fluids and Carbonate Pedogenesis

1994  Isotopic Tracers of Gold Deposition in Paleozoic Limestones, Southern Nevada

1994  Late Holocene Climate Derived From Vegetation History and Plant Cellulose Stable Isotope Records From the Great Basin of Western North America

1994  Molluscs as Climate Indicators: Preliminary Stable Isotope and Community Analysis

1994  Paleoclimatic and Paleohydrologic Records From Secondary Calcite: Yucca Mountain, Nevada

1994  Strontium Isotope Geochemistry of Soil and Playa Deposits Near Yucca Mountain, Nevada

1994  U-234/U-238 Ratio: Qualitative Estimate of Groundwater Flow in Rocky Flats Monitoring Wells

1993  Distribution of Stable Isotopes in Ground Water in the Rialto-Colton Basin, California

1993  Isotope-Geochemical Investigations of Volcanic Rocks in the Vicinity of the Radiochemical Plant “Mayak” (Russia)

1993  Isotopic and Trace Element Variability in Altered and Unaltered Tuffs at Yucca Mountain, Nevada

1993  Lead Isotopic Composition of Paleozoic and Late Proterozoic Marine Carbonate Rocks in the Vicinity of Yucca Mountain, Nevada

1992  Borosilicate Glass (\Ga,n) Sources Used With Origen-Type Calculations

1992  Isotopic Separation of ³He/4He From Solar Wind Gases Evolved from the Lunar Regolith

1992  ORIGNATE: PC Input Processor for ORIGEN-S

1992  Paleohydrologic Implications of the Stable Isotopic Composition of Secondary Calcite Within the Tertiary Volcanic Rocks of Yucca Mountain, Nevada

1992  Radioelements and Their Occurrence with Secondary Minerals in Heated and Unheated Tuff at the Nevada Test Site

1992  The Role of ORIGEN-S in the Design of Burnup Credit Spent Fuel Casks

1992  Strontium Isotope Geochemistry of Calcite Fracture Fillings in Deep Core, Yucca Mountain, Nevada—A Progress Report

1991  An Evaluation of Evidence Pertaining to the Origin of Vein Deposits Exposed in Trench 14, Nevada Test Site, Nevada

1991  Hydrologic and Geochemical Approaches for Determining Ground-Water Flow Components

1991  Isotopic Discontinuities in Ground Water Beneath Yucca Mountain, Nevada

1991  Microwave Application to TRU Wastes Conditioning System

1991  Potential ¹4CO2 Releases from Spent Fuel Containers at Yucca Mountain

1991  Strontium Isotopes in Carbonate Deposits at Crater Flat, Nevada

1991  Use of Stable Isotopes, Tritium, Soluble Salts, and Redox-Sensitive Elements to Distinguish Ground Water from Irrigation Water in the Salton Sea Basin

1990  Natural Radionuclides in Groundwater From J-13 Well at the Nevada Test Site

1990  Origin of Carbonate Deposits in the Vicinity of Yucca Mountain, Nevada: Preliminary Results of Strontium-Isotope Analyses

1990  A Preliminary Model for Carbon-14 Transport in a Clay Buffer

1990  Reconnaissance \Gd ¹³C and \Gd¹8O Data from Trench 14, Busted Butte, and Drill Hole G-4, Yucca Mountain, Nevada Test Site

1990  Risk Perspective on Potential Releases of ¹4C From the Geologic Repository at Yucca Mountain

1990  A Robotic Return to the Moon

1990  TN28V High Capacity Cask for the Transport and Storage of Vitrified Wastes

1989  ASCE Tritium Resolution Angers Reader

1988  Geohydrologic Aspects of Water-Quality Problems of the San Joaquin Valley, California

1982  Sewage Sludge Disinfection by ¹³7C5 Irradiation

1980  Groundwater Response during Runoff Events