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29,955 full-text articles. Page 262 of 1249.

Mgrre_Thinsections_05_A_26, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_26, Mgrre

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No abstract provided.


Mgrre_Thinsections_05_A_25, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_25, Mgrre

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No abstract provided.


Discovering Hidden Geothermal Signatures Using Non-Negative Matrix Factorization With Customized K-Means Clustering, V.V. Vesselinov, B. Ahmmed, M.K. Mudunuru, J.D. Pepin, E.R. Burns, D.L. Siler, S. Karra, R.S. Middleton 2022 EnviTrace, LLC., Carbon Solutions LLC

Discovering Hidden Geothermal Signatures Using Non-Negative Matrix Factorization With Customized K-Means Clustering, V.V. Vesselinov, B. Ahmmed, M.K. Mudunuru, J.D. Pepin, E.R. Burns, D.L. Siler, S. Karra, R.S. Middleton

United States Geological Survey: Staff Publications

Discovery of hidden geothermal resources is challenging. It requires the mining of large datasets with diverse data attributes representing subsurface hydrogeological and geothermal conditions. The commonly used play fairway analysis approach typically incorporates subject-matter expertise to analyze regional data to estimate geothermal characteristics and favorability. We demonstrate an alternative approach based on machine learning (ML) to process a geothermal dataset from southwest New Mexico (SWNM). The study region includes low- and medium-temperature hydrothermal systems. Several of these systems are not well characterized because of insufficient existing data and limited past explorative work. This study discovers hidden patterns and relations in …


Mgrre_Thinsections_05_A_24, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_24, Mgrre

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No abstract provided.


Mgrre_Thinsections_05_A_23, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_23, Mgrre

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No abstract provided.


Mgrre_Thinsections_05_A_22, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_22, Mgrre

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No abstract provided.


Mgrre_Thinsections_05_A_21, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_21, Mgrre

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No abstract provided.


The Effects Of Estradiol-17Β On The Sex Reversal, Survival, And Growth Of Green Sunfish Lepomis Cyanellus, Chad N. Teal, Daniel J. Schill, Susan B. Fogelson, Colby M. Roberts, Kevin Fitzsimmons, Javan M. Bauder, William T. Stewart, Scott A. Bonar 2022 University of Arizona

The Effects Of Estradiol-17Β On The Sex Reversal, Survival, And Growth Of Green Sunfish Lepomis Cyanellus, Chad N. Teal, Daniel J. Schill, Susan B. Fogelson, Colby M. Roberts, Kevin Fitzsimmons, Javan M. Bauder, William T. Stewart, Scott A. Bonar

United States Geological Survey: Staff Publications

The feminization of green sunfish Lepomis cyanellus could expand their utility as a game fish or aquacultured species by preventing overcrowding and precocious reproduction in stocked systems. Feminization of green sunfish could also help elucidate information on their sex determination system. We report the feminization of green sunfish cohorts via oral administration of estradiol-17β (E2) during early development. A low-dose (100 E2 mg per kg of diet) and a high-dose (150 E2 mg per kg of diet) experimental E2 treatment were fed to juvenile green sunfish from 30 to 90 days post-hatch. Fish were subsequently evaluated for any treatment effect …


Mgrre_Thinsections_05_A_20, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_20, Mgrre

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No abstract provided.


Mgrre_Thinsections_05_A_19, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_19, Mgrre

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No abstract provided.


Landslide Susceptibility Map Of Johnson County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg 2022 University of Kentucky

Landslide Susceptibility Map Of Johnson County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg

Contract Reports--KGS

The purpose of this map is to identify landslide-prone areas in Johnson County in order to provide the public, as well as local and state government agencies, with information about where landslides are likely to occur. This map represents geomorphic-based susceptibility modeling that focuses on physical slope characteristics and morphology, the quality of which is dependent on data accuracy and resolution of terrain models. The availability of high-resolution (5-ft digital elevation model) lidar derived datasets allows for the generation of terrain elevation derivatives such as hillshades, slope, aspect, curvature, and roughness, as well as identification of existing landslide deposits. These …


Landslide Susceptibility Map Of Floyd County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg 2022 University of Kentucky

Landslide Susceptibility Map Of Floyd County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg

Contract Reports--KGS

The purpose of this map is to identify landslide-prone areas in Floyd County in order to provide the public, as well as local and state government agencies, with information about where landslides are likely to occur. This map represents geomorphic-based susceptibility modeling that focuses on physical slope characteristics and morphology, the quality of which is dependent on data accuracy and resolution of terrain models. The availability of high-resolution (5-ft digital elevation model) lidar derived datasets allows for the generation of terrain elevation derivatives such as hillshades, slope, aspect, curvature, and roughness, as well as identification of existing landslide deposits. These …


Landslide Susceptibility Map Of Magoffin County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg, Ashton A. Killen 2022 University of Kentucky

Landslide Susceptibility Map Of Magoffin County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg, Ashton A. Killen

Contract Reports--KGS

The purpose of this map is to identify landslide-prone areas in Magoffin County, Kentucky, in order to provide the public, as well as local and state government agencies, with information about where landslides are likely to occur. This map represents geomorphic-based susceptibility modeling that focuses on physical slope characteristics and morphology, the quality of which is dependent on data accuracy and resolution of terrain models. The availability of high-resolution (5-ft digital elevation model) lidar derived datasets allows for the generation of terrain elevation derivatives such as hillshades, slope, aspect, curvature, and roughness, as well as identification of existing landslide deposits. …


Landslide Susceptibility Map Of Pike County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg 2022 University of Kentucky

Landslide Susceptibility Map Of Pike County, Kentucky, Matt M. Crawford, Hudson J. Koch, Jason M. Dortch, William C. Haneberg

Contract Reports--KGS

The purpose of this map is to identify landslide-prone areas in Pike County in order to provide the public, as well as local and state government agencies, with information about where landslides are likely to occur. This map represents geomorphic-based susceptibility modeling that focuses on physical slope characteristics and morphology, the quality of which is dependent on data accuracy and resolution of terrain models. The availability of high-resolution (5-ft digital elevation model) lidar derived datasets allows for the generation of terrain elevation derivatives such as hillshades, slope, aspect, curvature, and roughness, as well as identification of existing landslide deposits. These …


Climate Change Alters Aging Patterns Of Reservoir Aquatic Habitats, Leandro E. Miranda, Nicky M. Faucheux 2022 U.S. Geological Survey

Climate Change Alters Aging Patterns Of Reservoir Aquatic Habitats, Leandro E. Miranda, Nicky M. Faucheux

United States Geological Survey: Staff Publications

Two slow-moving developments are threatening reservoir aquatic habitats globally: aging and climate change. These events are projected to transform reservoir aquatic habitats in various and often unpredictable ways. Aging affects in-lake habitats directly, whereas climate change affects both in-lake and off-lake conditions. Climate change is expected to accelerate and, in some instances, possibly decelerate aging. Aging can be indexed as functional age, an index that signals the position of a reservoir along its lifespan relying on inlake descriptors of aquatic habitat. Using existing habitat datasets and climate projections, we developed semi-quantitative predictions about the effect of climate change on reservoir …


Mgrre_Thinsections_05_A_18, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_18, Mgrre

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No abstract provided.


Mgrre_Thinsections_05_A_17, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_17, Mgrre

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No abstract provided.


Mgrre_Thinsections_05_A_16, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_16, Mgrre

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No abstract provided.


Sediment Source Fingerprinting As An Aid To Large-Scale Landscape Conservation And Restoration: A Review For The Mississippi River Basin, Zhen Xu, Patrick Belmont, Janice Brahney, Allen C. Gellis 2022 Utah State University

Sediment Source Fingerprinting As An Aid To Large-Scale Landscape Conservation And Restoration: A Review For The Mississippi River Basin, Zhen Xu, Patrick Belmont, Janice Brahney, Allen C. Gellis

United States Geological Survey: Staff Publications

Reliable quantitative information on sediment sources to rivers is critical to mitigate contamination and target conservation and restoration actions. However, for large-scale river basins, determination of the relative importance of sediment sources is complicated by spatiotemporal variability in erosional processes and sediment sources, heterogeneity in sediment transport and deposition, and a paucity of sediment monitoring data. Sediment source fingerprinting is an increasingly adopted field-based technique that identifies the nature and relative source contribution of sediment transported in waterways. Notably, sediment source fingerprinting provides information that is independent of other field, modeling, or remotely sensed techniques. However, the diversity in sampling, …


Mgrre_Thinsections_05_A_15, MGRRE 2022 Western Michigan University

Mgrre_Thinsections_05_A_15, Mgrre

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No abstract provided.


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