Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

University of Rhode Island

2010

Discipline
Keyword
Publication
File Type

Articles 1 - 13 of 13

Full-Text Articles in Physical Sciences and Mathematics

Improvement Of Hydraulic And Water Quality Renovation Functions By Intermittent Aeration Of Soil Treatment Areas In Onsite Wastewater Treatment Systems, José A. Amador, David A. Potts, George W. Loomis, David V. Kalen, Erika L. Patenaude, Josef H. Görres Dec 2010

Improvement Of Hydraulic And Water Quality Renovation Functions By Intermittent Aeration Of Soil Treatment Areas In Onsite Wastewater Treatment Systems, José A. Amador, David A. Potts, George W. Loomis, David V. Kalen, Erika L. Patenaude, Josef H. Görres

Natural Resources Science Faculty Publications

We tested intermittent aeration of the soil treatment area (STA) of onsite wastewater treatment systems (OWTS) for its ability to restore and maintain STA hydraulic flow and improve the water quality functions of conventional OWTS. Evaluation was conducted on hydraulically-failed conventional OWTS at three state-owned medical group homes in Washington County, RI, USA. Testing was conducted in two phases, with Phase I (before intermittent soil aeration (ISA)) comprising the first 6 months of the study, and Phase II (during ISA) the remaining 7 months. Intermittent soil aeration restored STA hydraulic function in all three systems despite a marked reduction in …

Go to article

Autonomous Underwater Vehicles As Tools For Deep-Submergence Archaeology, Christopher N. Roman, Ian Roderick Mather Nov 2010

Autonomous Underwater Vehicles As Tools For Deep-Submergence Archaeology, Christopher N. Roman, Ian Roderick Mather

Graduate School of Oceanography Faculty Publications

Marine archaeology beyond the capabilities of scuba divers is a technologically enabled field. The tool suite includes ship-based systems such as towed side-scan sonars and remotely operated vehicles, and more recently free-swimming autonomous underwater vehicles (AUVs). Each of these platforms has various imaging and mapping capabilities appropriate for specific scales and tasks. Broadly speaking, AUVs are becoming effective tools for locating, identifying, and surveying archaeological sites. This paper discusses the role of AUVs in this suite of tools, outlines some specific design criteria necessary to maximize their utility in the field, and presents directions for future developments. Results are presented …

Go to article

Journal Usage By Subject For Fiscal Year 2010, Michael A. Cerbo Ii Sep 2010

Journal Usage By Subject For Fiscal Year 2010, Michael A. Cerbo Ii

Technical Services Reports and Statistics

Journal holdings for the University Libraries are listed alphabetically by subject than authority title. Usage statistics for the fiscal year are included along with a cost per use where available. The information is taken from each vendor and incorporated in Serials Solutions 360 Counter.

Go to article

Surface Roughness Effect On Ultracold Neutron Interaction With A Wall And Implications For Computer Simulations, Albert Steyerl, Surendra S. Malik, A. M. Desai, Charles Kaufman May 2010

Surface Roughness Effect On Ultracold Neutron Interaction With A Wall And Implications For Computer Simulations, Albert Steyerl, Surendra S. Malik, A. M. Desai, Charles Kaufman

Physics Faculty Publications

We review the diffuse scattering and the loss coefficient in ultracold neutron reflection from slightly rough surfaces, report a surprising reduction in loss coefficient due to roughness, and discuss the possibility of transition from quantum treatment to ray optics. The results are used in a computer simulation of neutron storage in a recent neutron lifetime experiment that reported a large discrepancy of neutron lifetime with the current particle data value. Our partial reanalysis suggests the possibility of systematic effects that were not included in this publication.

Go to article

Application Of Structured Light Imaging For High Resolution Mapping Of Underwater Archaeological Sites, Chris Roman, Gabrielle Inglis, James Rutter May 2010

Application Of Structured Light Imaging For High Resolution Mapping Of Underwater Archaeological Sites, Chris Roman, Gabrielle Inglis, James Rutter

Graduate School of Oceanography Faculty Publications

This paper presents results from recent work using structured light laser profile imaging to create high resolution bathymetric maps of underwater archaeological sites. Documenting the texture and structure of submerged sites is a difficult task and many applicable acoustic and photographic mapping techniques have recently emerged. This effort was completed to evaluate laser profile imaging in comparison to stereo imaging and high frequency multibeam mapping. A ROV mounted camera and inclined 532 nm sheet laser were used to create profiles of the bottom that were then merged into maps using platform navigation data. These initial results show very promising resolution …

Go to article

Quikscat Analysis Of Hurricane Force Extratropical Cyclones In The Pacific Ocean, Peter Jzyk May 2010

Quikscat Analysis Of Hurricane Force Extratropical Cyclones In The Pacific Ocean, Peter Jzyk

Senior Honors Projects

Since June 1999, NASA’s Quick Scatterometer Spacecraft (QuikSCAT) has been providing forecasters at the Ocean Prediction Center (OPC) with Near-Real-Time (N.R.T.) surface wind speed and direction data over the world’s oceans. QuikSCAT has allowed forecasters to better predict potential hazards such as storm surges and issue warnings when necessary. Over the past decade, QuikSCAT has received a number of upgrades which improved the forecasters’ abilities to predict the weather more accurately and issue warnings, accordingly. Improvements included the availability of the QuikSCAT data within the forecasters’ workstations starting in October 2001, the introduction of higher resolution satellite data in May …

Go to article

The Postsecret Phenomenon: A Contemporary Application Of Existential Psychotherapy, Dan Martin May 2010

The Postsecret Phenomenon: A Contemporary Application Of Existential Psychotherapy, Dan Martin

Senior Honors Projects

In November 2004, as a whimsical break from his monotonous job, Frank Warren decided he would start a small art project in his community. This idea, which he entitled “PostSecret,” involved leaving blank post cards in various public locations that simply asked to “Share a Secret” and listed a few guidelines. Frank’s goal was to “create this non-judgmental, safe place where people could feel comfortable sharing parts of their lives that they've never told a soul.” What he expected to be a small result became a weekly blog, five published books, a traveling art gallery, and a lecture series given …

Go to article

A South County Almanac: Recollections And Observations Of The Outdoors In Southern Rhode Island, Nevan Richard May 2010

A South County Almanac: Recollections And Observations Of The Outdoors In Southern Rhode Island, Nevan Richard

Senior Honors Projects

Since its publication in 1949, “A Sand County Almanac: With Sketches Here and There” has served as the benchmark for writing about the environment and nature. “Sand County” was written by famed environmentalist Aldo Leopold, who for most of his lifetime worked towards the conservation of wildlife and natural resources. In “Sand County,” Aldo Leopold recounts his experiences and observations in various essays and journal entries from his many years of living in Wisconsin, as well his travels across the North American continent. With its publication after Mr. Leopold’s death, it changed the face of the American conservation movement, later …

Go to article

Citrate Synthase And The Visual Interactions Hypothesis, Kristina Camarena May 2010

Citrate Synthase And The Visual Interactions Hypothesis, Kristina Camarena

Senior Honors Projects

It has been shown that the metabolic rates of deep-living species of particular pelagic groups are significantly lower than those that live closer to the surface in the water column. Various theories as to why have been presented, including the visual interactions hypothesis, which states that because there is a greatly minimized ability to visually interact in the light-limited deep, predators have a reduced need for high metabolic rates because they do not actively go after their prey. Citrate synthase is a mitochondrial enzyme found at the beginning of the citric acid cycle, which plays an integral role in cellular …

Go to article

A South County Almanac, Nevan Richard May 2010

A South County Almanac, Nevan Richard

Senior Honors Projects

Since its publication in 1949, “A Sand County Almanac: With Sketches Here and There” has served as the benchmark for writing about the environment and nature. “Sand County” was written by famed environmentalist Aldo Leopold, who for most of his lifetime worked towards the conservation of wildlife, forests, and other natural resources. In “Sand County,” Aldo Leopold recounts his experiences and observations in various essays and journal entries from his many years of living in Wisconsin, as well his travels across the North American continent. With its publication following Mr. Leopold’s death, it changed the face of conservation, later inspiring …

Go to article

Facilitating Behavior Change Of Coastal Communities In Regards To Climatic Hazards, Marisa Nixon May 2010

Facilitating Behavior Change Of Coastal Communities In Regards To Climatic Hazards, Marisa Nixon

Senior Honors Projects

For my Senior Honors Project I participated in the Climate Change Collaborative, which is a new interdisciplinary research project studying the ways in which coastal communities in Rhode Island can better adapt to the environmental, cultural and economic consequences of climate change. As a member of this collaborative, I worked in a vertically integrated team of faculty (psychology researchers, climate scientists and communications science practitioners and researchers) as well as undergraduate and graduate students, to begin an endeavor through which behavior change will be assessed in regards to climate change. For the purposes of this study, we specifically focus on …

Go to article

Spatial And Temporal Variation In Otolith Chemistry For Tautog (Tautoga Onitis) In Narragansett Bay And Rhode Island Coastal Ponds, Ivan Mateo, Edward G. Durbin, David A. Bengtson, Richard Kingsley, Peter K. Swart, Daisy Durant Jan 2010

Spatial And Temporal Variation In Otolith Chemistry For Tautog (Tautoga Onitis) In Narragansett Bay And Rhode Island Coastal Ponds, Ivan Mateo, Edward G. Durbin, David A. Bengtson, Richard Kingsley, Peter K. Swart, Daisy Durant

Fisheries, Animal and Veterinary Sciences Faculty Publications

The elemental composition of otoliths may provide valuable information for establishing connectivity between fish nursery grounds and adult fish populations. Concentrations of Rb, Mg, Ca, Mn, Sr, Na, K, Sr, Pb, and Ba were determined by using solution-based inductively coupled plasma mass spectrometry in otoliths of young-of-the year tautog (Tautoga onitis) captured in nursery areas along the Rhode Island coast during two consecutive years. Stable oxygen (δ18O) and carbon (δ13C) isotopic ratios in young-of-the year otoliths were also analyzed with isotope ratio mass spectrometry. Chemical signatures differed significantly among the distinct nurseries within Narragansett …

Go to article

Does Self Management In Fisheries Enhance Profitability? Examination Of Korea’S Coastal Fisheries, Hirotsugu Uchida, Emi Uchida, Jung-Sam Lee, Jeong-Gon Ryu, Dae-Young Kim Jan 2010

Does Self Management In Fisheries Enhance Profitability? Examination Of Korea’S Coastal Fisheries, Hirotsugu Uchida, Emi Uchida, Jung-Sam Lee, Jeong-Gon Ryu, Dae-Young Kim

Environmental and Natural Resource Economics Faculty Publications

Self management of natural resources has started to gain increasing attention as an alternative tool to command-and-control and market-based tools, but the fundamental question remains: is self management economically beneficial such that it should be promoted in the first place? This article uses a unique set of survey data from South Korea and applies an empirical strategy to provide some of the first quantitative evidence that self management is benefiting the fishermen. We find that positive benefits of fishery self management—an increase in fishery revenue and reduction in cost—are perceived by member fishermen, which is a good start considering the …

Go to article