Results 31 to 40 of about 174,137,944 (233)

Quantification and visualization of flood-induced morphological changes in meander structures by UAV-based monitoring

open access: yesEngineering Science and Technology, an International Journal, 2022
River basins are one of the most dynamic terrains on Earth, therefore, river morphology should be monitored continuously and its effects on the environment (i.e. natural hazards) should be mapped whenever possible.
Semih Sami Akay   +2 more
doaj   +1 more source

Earmarks and the FY 2005 Defense Appropriations Act: a study of Congressional control of DoD [PDF]

open access: yes, 2005
MBA Professional ReportThe purpose of this project was to analyze how Congress controls the Department of Defense (DOD) through the budget review process. The project looks at the Congressional marks made to the Defense Appropriations Act.
John J. Bergeron, Bergeron, John J.
core   +2 more sources

Rapid Assessment of Deep Retrofit System Solutions to Improve Energy Efficiency in DoD Installations and Buildings [PDF]

open access: yes, 2012
The paper describes the application of a methodology and tools for early assessment of integrated system solutions for deep retrofit with a potential of 30-50% energy reductions across large building portfolio as well as at an individual building scale ...
Otto, Kevin   +3 more
core   +1 more source

Quantitative Characterization of Coastal Cliff Retreat and Landslide Processes at Portonovo–Trave Cliffs (Conero, Ancona, Italy) Using Multi-Source Remote Sensing Data

open access: yesRemote Sensing, 2023
The integration of multiple data sources, including satellite imagery, aerial photography, and ground-based measurements, represents an important development in the study of landslide processes.
Nicola Fullin   +5 more
doaj   +1 more source

Monitoring Mining Surface Subsidence with Multi-Temporal Three-Dimensional Unmanned Aerial Vehicle Point Cloud

open access: yesRemote Sensing, 2023
Long-term and high-intensity coal mining has led to the increasingly serious surface subsidence and environmental problems. Surface subsidence monitoring plays an important role in protecting the ecological environment of the mining area and the ...
Xiaoyu Liu   +3 more
doaj   +1 more source

Ergodicity and spectral cascades in point vortex flows on the sphere [PDF]

open access: yes, 2015
A.C.P. was supported under DOD (MURI) Grant No. N000141110087 ONR. The computations were supported by the CUNY HPCC under NSF Grants No. CNS-0855217 and No. CNS-0958379.We present results for the equilibrium statistics and dynamic evolution of moderately
Poje, A.C.   +3 more
core   +1 more source

Erosion Quantification in Runoff Agriculture Plots by Multitemporal High-Resolution UAS Digital Photogrammetry

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In this work, we apply close-range photogrammetry with unmanned aircraft systems to quantify erosion with millimetric spatial resolution in agricultural plots. We evaluate the proposed methodology against the traditional runoff method on active plots.
Sergio Arriola-Valverde   +3 more
doaj   +1 more source

A COMPARATIVE ANALYSIS OF DOD AND FEDERAL NON-DOD COR COMPETENCIES [PDF]

open access: yes, 2019
The purpose of this research is to analyze and measure the effectiveness of the guidance for identification, development, certification, and management of contracting officer’s representatives (CORs) within the Department of Defense (DoD) in comparison ...
Lee, Phillip   +2 more
core   +1 more source

Use of High-Resolution Multi-Temporal DEM Data for Landslide Detection

open access: yesGeosciences, 2022
Landslides in urban areas have been relatively well-documented in landslide inventories despite issues in accuracy and completeness, e.g., the absence of small landslides.
Behnam Azmoon, Aynaz Biniyaz, Zhen Liu
doaj   +1 more source

Different Paths for Developing Terrestrial LiDAR Data for Comparative Analyses of Topographic Surface Changes

open access: yesApplied Sciences, 2020
High resolution terrestrial laser scanning data (TLS; terrestrial LiDAR) provide an excellent background for quantitative resource estimation through the comparative analysis of topographic surface changes.
Waldemar Kociuba
doaj   +1 more source

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