搜索结果: 1-15 共查到“理学 USA”相关记录47条 . 查询时间(0.016 秒)
Tokamak Energy of the UK is to send its gamma radiation cryostat system to the US Department of Energy's Sandia Laboratories in Albuquerque, New Mexico, so that it can be exposed to extreme conditions...
Estimating land-use change impacts on direct runoff and non-point source pollutant loads in the Richland Creek basin (Illinois,USA) by applying the L-THIA model
land-use change runoff non-point source pollution hydrological model
2015/8/13
An export coefficient approach to hydrological and non-point source (NPS) pollution modeling enables quick and simple assessment of long-term impacts for planning purposes. An export coefficient and g...
Watershed Physiography, Land Use, and Sediment Yield: A Case Study from Northwest Arkansas, USA
Reservoir Sedimentation Watershed Sediment yield Land use Slope
2015/8/11
Precision echo sounder surveys of bathymetry and sediment thickness of Lee Creek Reservoir and Lake Shepherd Springs (northwest Arkansas) were combined with Geographic Information Systems (GIS) analys...
Salt Marsh Primary Production and Its Responses to Relative Sea Level and Nutrients in Estuaries at Plum Island, Massachusetts, and North Inlet, SouthCarolina, USA
Primary Production Relative Sea Level
2015/7/16
Feedbacks between flooding and plant growth that help to stabilize marshes against rising sea level are being investigated in estuaries at Plum Island, Massachusetts, and North Inlet, South Carolina. ...
OBIS-USA:A Data-Sharing Legacy of the Census of Marine Life
OBIS-USA Data-Sharing Legacy Census of Marine Life
2015/7/9
The United States Geological Survey's Biological Informatics Program hosts OBIS-USA, the US node of the Ocean Biogeographic Information System (OBIS). OBIS-USA gathers, coordinates, applies standard f...
Nutrient and Contaminant Export Dynamics in a Larger-order Midwestern Watershed: Upper White River, Central Indiana, USA
export nitrogen nitrate phosphorus atrazine
2015/1/16
The transport of excess nutrients, sediment, and other contaminants to surface waters has been shown to cause a number of environmental and human health concerns. An understanding of the export pathwa...
MERCURY DISTRIBUTION IN SOILS AND STREAM SEDIMENTS OF CENTRAL INDIANA, USA
Mercury Soil Sediment Emissions
2015/1/16
An investigation of mercury (Hg) in soils and stream sediments was conducted to understand the impact of urbanization on Hg deposition and accumulation on the upper west fork of the White River waters...
IDENTIFYING VARIATIONS OF SOCIO-SPATIAL VULNERABILITY TO HEAT-RELATED MORTALITY DURING THE 1995 EXTREME HEAT EVENT IN CHICAGO, IL, USA
Extreme Heat Event Vulnerable populations Heat-related death Urban Heat Island
2015/1/9
Extreme Heat Events are the leading cause of weather-related mortalities in the continental United States. Recent publications have suggested that vulnerability to extreme heat is impacted by variatio...
Estimating land-use change impacts on direct runoff and non-point source pollutant loads in the Richland Creek basin (Illinois, USA) by applying the L-THIA model
land-use change runoff non-point source pollution
2015/1/7
An export coefficient approach to hydrological and non-point source (NPS) pollution modeling enables quick and simple assessment of long-term impacts for planning purposes. An export coefficient and g...
Watershed Physiography, Land Use, and Sediment Yield: A Case Study from Northwest Arkansas, USA
Sediment yield Land use Slope Arkansas
2015/1/6
Precision echo sounder surveys of bathymetry and sediment thickness of Lee Creek Reservoir and Lake Shepherd Springs (northwest Arkansas) were combined with Geographic Information Systems (GIS) analys...
The Effects of Sea Level Change on the Molecular and Isotopic Composition of Sediments in the Cretaceous Western Interior Seaway: Oceanic Anoxic Event 3, Mesa Verde, CO, USA
Sea Level Change on the Molecular Isotopic Composition of Sediments Cretaceous Western Interior Seaway Oceanic Anoxic Event 3 Mesa Verde CO, USA
2014/11/4
Cretaceous Oceanic Anoxic Events (OAEs) represent periods of enhanced burial of organic matter in black shale in marine, continental margin, and epicontinental settings around the globe. Compared to o...
Characterization of magmatic and diffusional processes in fractionally differentiated ultramafic systems: Examples from the Grand Canyon, USA
Earth sciences Grand Canyon Magma chamber Olivine coronas Proterozoic Spinel Ultramafic
2014/10/22
A 50 meter thick unit of Proterozoic cumulate layered wehrlite, lherzolite, and olivine websterite exposed at river mile 91 in the Ninetyone Mile Creek Canyon, a side canyon to the Grand Canyon, Arizo...
Th Effcts of Sea Level Change on the Molecular and Isotopic Composition of Sediments in the Cretaceous Western Interior Seaway: Oceanic Anoxic Event 3, Mesa Verde, CO, USA
Sea Level Change on the Molecular Isotopic Composition Sediments Cretaceous Western Interior Seaway Oceanic Anoxic Event 3 Mesa Verde CO USA
2014/10/22
Cretaceous Oceanic Anoxic Events (OAEs) represent periods of enhanced burial of organic matter in black shale in marine, continental margin, and epicontinental settings around the globe. Compared to o...
Shale-Derived Dissolved Organic Mattr as a Substrate for Subsurface Methanogenic Communities in the Antrim Shale, Michigan Basin, USA
Shale-Derived Dissolved Organic Matter as a Substrate Subsurface Methanogenic Communities Antrim Shale Michigan Basin USA
2014/10/22
The microbial origin of methane produced from sedimentary basins is a subject of great interest, with implications for the global cycling of carbon as well as natural gas exploration. Despite the grow...
Th Effcts of Sea Level Change on the Molecular and Isotopic Composition of Sediments in the Cretaceous Western Interior Seaway: Oceanic Anoxic Event 3, Mesa Verde, CO, USA
Isotopic Composition Sediments the Cretaceous Western Interior Seaway Oceanic Anoxic Event 3 Mesa Verde CO USA
2014/10/20
Cretaceous Oceanic Anoxic Events (OAEs) represent periods of enhanced burial of organic matter in black shale in marine, continental margin, and epicontinental settings around the globe. Compared to o...