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2020

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Ecological Studies Of An Abyssal Nodule Province To Inform The Management Of Deep-Sea Mining, Kirsty Alexandra Mcquaid Jan 2020

Ecological Studies Of An Abyssal Nodule Province To Inform The Management Of Deep-Sea Mining, Kirsty Alexandra Mcquaid

School of Biological and Marine Sciences Theses

The abyssal environment remains one of the most poorly studied parts of the planet. While predominantly an environment dominated by soft sediments, some abyssal regions are known to harbour potato-sized, rock-like formations known as polymetallic nodules. These nodule provinces are now the subject of exploration by nations and their nominated contractors keen to develop a new deep-sea mining industry. This new industry has the potential for large-scale environmental impacts, but at present these impacts are difficult to predict, and therefore mitigate, as a result of the lack of ecological data and scientific understanding of these areas. The studies carried out …

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Exploring Virtual Worlds With Cultural Algorithms: Ancient Alpena-Amberley Land Bridge, Thomas Joseph Palazzolo Jan 2020

Exploring Virtual Worlds With Cultural Algorithms: Ancient Alpena-Amberley Land Bridge, Thomas Joseph Palazzolo

Wayne State University Dissertations

In this thesis the Land Bridge system (DEEPDIVE) is described. The goal of the project is to use Artificial Intelligence technology to aid Archaeologists in the discovery of ancient prehistoric sites, now underwater. The example used here is the Alpena-Amberley Land Bridge that stretched across Lake Huron from Alpena in Michigan to Amberley in Ontario. During the Ice Age (around 10,000 years ago) it was above water for several thousand years. It was postulated that during that time it was used as a migration pathway for caribou, a major food source then. AI techniques were used to create a virtual …

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Marsbee Preliminary Design Analysis Tool, Hunter Dunne Jan 2020

Marsbee Preliminary Design Analysis Tool, Hunter Dunne

Theses

The Marsbee is a novel bioinspired flapping flight vehicle concept for aerial Martian exploration. The Marsbee design addresses the challenges of flying on Mars by mimicking the unsteady lift generation mechanisms seen in terrestrial insects. To enable the comparison of the Marsbee system to other flying Martian exploration concepts, a systems-based analyzer was created, consisting of several physics-based models. Constraints were used to maintain dynamic similarity between the Marsbee and insects on Earth. The current analyzer only models hovering flight. The functionality of the analyzer was demonstrated by analyzing 2 million randomly generated two-wing and 2 million randomly generated four-wing …

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Evaluation Of Engineering Properties Of Soil In Al Butayn, Mudarraj Al Qassim And Turubah - Hail Saudi Arabia, Turki Essam A. Sehly Jan 2020

Evaluation Of Engineering Properties Of Soil In Al Butayn, Mudarraj Al Qassim And Turubah - Hail Saudi Arabia, Turki Essam A. Sehly

Masters Theses

"Fractures, sinkhole, building cracks, and ground subsidence have spread in many regions of the Kingdom of Saudi Arabia, some of which are related to seismic activity, others due to the presence of unstable soils (collapsing soils and Expansive soils) and others because of faults, while others result from drawing groundwater at great rates. The current study has several facts related to the formation of cracks and landslides, including:
1) A general study of geomorphology and geology of the study areas.
2) The causes affecting the formation of cracks and subsidence.
3) Detailed geomorphological and geological studies of the locations of …

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From 'Wonderful Grandeur' To 'Awful Things': What The Antiquities Act And National Monuments Reveal About The Statue Statutes And Confederate Monuments, Zachary Bray Jan 2020

From 'Wonderful Grandeur' To 'Awful Things': What The Antiquities Act And National Monuments Reveal About The Statue Statutes And Confederate Monuments, Zachary Bray

Kentucky Law Journal

No abstract provided.

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Future Vision For Autonomous Ocean Observations, Christopher Whitt, Jay Pearlman, Brian Polagye, Frank Caimi, Frank Muller-Karger, Andrea Copping, Heather Spence, Shyam Madhusudhana, William Kirkwood, Ludovic Grosjean, Bilal Muhammad Fiaz, Satinder Singh, Sikandra Singh, Dana Manalang, Ananya Sen Gupta, Alain Maguer, Justin J. H. Buck, Andreas Marouchos, Malayath Aravindakshan Atmanand, Ramasamy Venkatesan, Vedachalam Narayanaswamy, Pierre Testor, Elizabeth Douglas, Sebastien De Halleux, Siri Jodha Khalsa Jan 2020

Future Vision For Autonomous Ocean Observations, Christopher Whitt, Jay Pearlman, Brian Polagye, Frank Caimi, Frank Muller-Karger, Andrea Copping, Heather Spence, Shyam Madhusudhana, William Kirkwood, Ludovic Grosjean, Bilal Muhammad Fiaz, Satinder Singh, Sikandra Singh, Dana Manalang, Ananya Sen Gupta, Alain Maguer, Justin J. H. Buck, Andreas Marouchos, Malayath Aravindakshan Atmanand, Ramasamy Venkatesan, Vedachalam Narayanaswamy, Pierre Testor, Elizabeth Douglas, Sebastien De Halleux, Siri Jodha Khalsa

Marine Science Faculty Publications

Autonomous platforms already make observations over a wide range of temporal and spatial scales, measuring salinity, temperature, nitrate, pressure, oxygen, biomass, and many other parameters. However, the observations are not comprehensive. Future autonomous systems need to be more affordable, more modular, more capable and easier to operate. Creative new types of platforms and new compact, low power, calibrated and stable sensors are under development to expand autonomous observations. Communications and recharging need bandwidth and power which can be supplied by standardized docking stations. In situ power generation will also extend endurance for many types of autonomous platforms, particularly autonomous surface …

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Paleoecology Of Bivalves In The Carmel Formation (Middle Jurassic, Bajocian) Of Utah, Evan L. Shadbolt Jan 2020

Paleoecology Of Bivalves In The Carmel Formation (Middle Jurassic, Bajocian) Of Utah, Evan L. Shadbolt

Senior Independent Study Theses

The Carmel Formation of the Middle Jurassic has many mysteries. One of these enigmas is its bivalves. The formation contains the famous oyster balls called ostreoliths. Despite bivalves making up 80 percent of the fossils found in the Carmel Formation, it is not understood how the bivalves lived in this community. The formation is located in southwestern and central Utah. It was deposited when an epicontinental seaway covered most of Utah. The paleoclimate of Utah was hot and dry, which meant that the environment was evaporite heavy. This also meant that the seawater at the southernmost extent of the seaway …

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Interpretive Geologic Maps And Cross Sections For Phelps, Kearney, And Adams Counties In Nebraska, Dana Divine, Leslie M. Howard Jan 2020

Interpretive Geologic Maps And Cross Sections For Phelps, Kearney, And Adams Counties In Nebraska, Dana Divine, Leslie M. Howard

Conservation and Survey Division: Faculty and Staff Publications

Data from thousands of test-hole and well logs were interpreted to improve understanding and management of the High Plains aquifer in a three-county study area adjacent to the Big Bend reach of the Platte River. Five principal conclusions resulted from these interpretations: (1) the extent of Neogene Ogallala deposits beneath the study area is different than previously mapped; (2) a large paleovalley incised into Cretaceous bedrock probably cuts across Kearney and Adams counties and may be the course of the ancestral Platte River prior to formation of the Big Bend; (3) a groundwater mound created by irrigation canals artificially raises …

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Application Of Geophysics And Remote Sensing Techniques For Economic Mineral Exploitation In Libya, Awad Abdussalam Henish Lemnifi Jan 2020

Application Of Geophysics And Remote Sensing Techniques For Economic Mineral Exploitation In Libya, Awad Abdussalam Henish Lemnifi

Doctoral Dissertations

“This study investigates crustal thickness and properties within the north central Africa region. Results obtained from 15 seismic stations belonging to the Libyan Center for Remote Sensing and Space Science are reported, in addition to 3 seismic stations publically available, using receiver functions, the first P-to-S receiver function investigation of the 410 km and 660 km depth discontinuities bounding the mantle transition zone (MTZ), and P wave tomography methods. The results from the first method show crustal thicknesses ranging from 24 km to 36 km (with uncertainties ranging between ±0.10 km and ±0.90 km). More specifically, crustal thickness ranges from …

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