Results 61 to 70 of about 5,084,494 (418)
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey
, 2017 This publication is the first in a series of annual reports that will make data available regarding changes in stratigraphic nomenclature and that will list publications in which the changes have been described.
G. V. Cohee, W. S. West
semanticscholar +1 more source
Human-Wildlife Interactions, 2017 Radar systems designed to detect avian activity at airfields are useful in understanding factors that influence the risk of bird and aircraft collisions (bird strikes).
Peter S. Coates +4 more
doaj +1 more source
Yankuang ceshi, 2022 BACKGROUND Selenium is one of the essential trace elements for humans. Eating agricultural products containing selenium is an important way for humans to obtain selenium. It is of great significance for the utilization of selenium-enriched soil resources
GONG Cang +9 more
doaj +1 more source
Use of groundwater lifetime expectancy for the performance assessment of a deep geologic radioactive waste repository:2. Application to a Canadian Shield environment [PDF]
, 2011 Cornaton et al. [2007] introduced the concept of lifetime expectancy as a performance measure of the safety of subsurface repositories, based upon the travel time for contaminants released at a certain point in the subsurface to reach the biosphere or compliance area.
arxiv +1 more source
Scientific ReportsHydrajet fracturing could be a promising technique for increasing hydrate production; however, the pressure distribution law inside the perforation tunnel must first be investigated.
Jiawei Zhou +7 more
doaj +1 more source
, 2013 The map illustrates the topography of the Austin East Quadrangle in 2013.Waller Creek Working ...
U.S. Geological Survey
core +1 more source
4D Printed Self‐Deploying Bio‐Based Scaffolds for the Regeneration of Endoluminal Tissue
Advanced Materials Technologies, EarlyView.A bilayer self‐deploying tubular C‐shaped scaffold, made of natural polymers and triggerable by humidity, is fabricated via 4D printing for the regeneration of gastro‐intestinal tissue. The choice of the materials and their spatial arrangement is guided by physical and biological evaluation, whereas the geometry of the structure is optimized through ...
Irene Chiesa +9 more
wiley +1 more source
IRSEI-based monitoring of ecological quality and analysis of drivers in the Daling River Basin
Scientific ReportsThe Daling River Basin is an important ecological functional area in the western region of Liaoning with outstanding environmental problems. The monitoring of ecological and environmental quality in the basin and the analysis of driving factors are of ...
Jintao Ge +8 more
doaj +1 more source
Geothermal Energy, 2022 The energy sector is undergoing a fundamental transformation, with a significant investment in low-carbon technologies to replace fossil-based systems. In densely populated urban areas, deep boreholes offer an alternative over shallow geothermal systems,
Kaiu Piipponen +6 more
doaj +1 more source