Physical Sciences and Mathematics Commons^™

Boat Wake Attenuation Through Artificial Vegetation - A Case Study From Peche Island, Jamie Kathryn Lilly

Electronic Theses and Dissertations

The use of nature-based solutions and engineering ideas has sparked interest in the value of vegetated shorelines for protecting against erosion. However, there is a lack of field data, and more research is needed to understand how effective vegetation is in reducing the impact of wind waves and boat wakes. The difference in period between wind waves and boat wakes suggests that they may be attenuated differently, requiring further study to determine the optimal management design. The purpose of this study is to quantify the ability of artificial vegetation to attenuate boat wakes and calculate the drag coefficient for model …

Medical Monitoring Working Group Focused Call Summaries, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Quantifying Survival And Behaviour Of Hatchery-Reared Juvenile Bloater Stocked Across Bathymetric Depths In Lake Ontario, Lydia L. Paulic

Electronic Theses and Dissertations

Over 20 million native and non-native fishes are stocked into the Great Lakes annually as part of restoration initiatives and to support commercial and recreational fisheries. Bloater (Coregonus hoyi), a deep-water planktivore that was extirpated from Lake Ontario in the 1980s, has been consistently stocked in the lake since 2012 by Canadian and American natural resource agencies with the goal of producing a self-sustaining population. Previous research has highlighted challenges with stocking such as poor survival, attributed to high predation, potential maladaptive behaviour and barotrauma resulting from introducing a hatchery-reared species into a foreign environment. To address these survival challenges, …

Final 2023 Butte Priority Soils Operable Unit Type B Borrow Material Submittal #1, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Approved Butte Priority Soils Operable Unit (Bpsou) Unreclaimed And Insufficiently Reclaimed Sites Request For Information 2022-01, Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Using A Sand Tank Groundwater Model To Investigate A Groundwater Flow Model, Christopher Evrard, Callie Johnson, Michael A. Karls, Nicole Regnier

CODEE Journal

A Sand Tank Groundwater Model is a tabletop physical model constructed of plexiglass and filled with sand that is typically used to illustrate how groundwater water flows through an aquifer, how water wells work, and the effects of contaminants introduced into an aquifer. Mathematically groundwater flow through an aquifer can be modeled with the heat equation. We will show how a Sand Tank Groundwater Model can be used to simulate groundwater flow through an aquifer with a no flow boundary condition.

Fish Assemblage Structure In Great Lakes Coastal Wetlands Over Ten Years, Matthew S. Silverhart

Masters Theses

Coastal wetlands in the Laurentian Great Lakes are important habitats for many fish species. The geographic scale of the watershed and the diversity of land uses in the region result in substantial environmental variation among coastal wetlands. During 2011-2020, annual surveys were conducted as part of the Great Lakes Coastal Wetland Monitoring Program (GLCWMP) to better understand the status and trends of coastal wetlands. Fish sampling consisted of fyke netting in monodominant vegetation zones. During this time, 1225 unique monodominant plant zones in coastal wetlands were sampled, resulting in 584,125 fishes captured that consisted of 113 different species. Yellow Perch …

The Valuation Of Exit Option In A Lignite Mine Using Monte Carlo Simulation, Marcin Pawlak, Tomasz Wiśniewski

Journal of Sustainable Mining

This study aims to demonstrate the application of simulation techniques to the valuation of real options. The nature of the paper is methodological and empirical. The purpose of the valuation of the option to close a lignite mine in Poland is to demonstrate the methodology and advantages of employing Monte Carlo simulation in the valuation of real options. Close to actual numerical data reveals a complex optimization problem in the context of strategy selection by decision-makers. Numerous factors (extraction costs, reclamation costs, the write-off for the reclamation fund, etc.), their interpenetration and multilevel influence on the decision to close the …

Mathematical Model For The Management Of The Wave Processes In Three-Winding Transformers With Consideration Of The Main Magnetic Flux In Mining Industry, M. S. Seheda, O. S. Beshta, P. F. Gogolyuk, Yu. V. Blyznak, R. D. Dychkovskyi, A. Smoliński

Journal of Sustainable Mining

The aim of the work is to study the wave processes in three-winding power transformers caused by impulse overvoltage, to create an improved mathematical model for reproducing the process of distribution and transmission of the impulse in the windings of a three-winding power transformer. A mathematical model has been developed for the study of internal overvoltage in the windings of three-winding power transformers, based on the proposed substitute circuit of an infinitesimal element, taking into account the longitudinal and transverse inductive connections between the turns of the winding, the electromagnetic connections between the windings and the flux splitting from the …

The Effect Of Blasting Using Low-Density Emulsion Explosives, Vinko Škrlec, Mario Dobrilović, Barbara Štimac Tumara, Vječislav Bohanek

Journal of Sustainable Mining

Low-density emulsion explosives are essentially blends of an emulsion matrix and a certain amount of gaseous phase inclusions acting as hot spots. With the addition of expanded polystyrene for gaseous sensibilization, the resulting explosive blend was developed to reduce peak values and pressure impulse of gaseous detonation products on surrounding rock. This resulted in a decrease in rock stress and a decrease in cracking zone width outside of the minefield boundary. The use of low-density emulsion explosives correlates with the decrease in the seismic effect of blasting, more precisely, the decrease of induced rock oscillation velocities. The low-density emulsion explosive …

Numerical Simulation On Effect Of Coal Pillar Width On Stability Of Retained Roadway: A Case Study Of Khe Cham Coal Mine, Vietnam, Quang Phuc Le, Tien Dung Le

Journal of Sustainable Mining

When extracting coal seams in Vietnam underground mines, coal pillars are often left unmined for the protection of retained roadways in the longwall mining method. During longwall mining operations, coal pillars are often placed where high-stress concentrations occur in the abutment pressure zone of adjacent panels, especially when extracting seams under hard-to-cave main roof conditions. The instability of coal pillars under the loading of the main roof may cause the roadway to collapse, threatening the safe operation of a coal mine. This paper presents a detailed numerical investigation of the effect of coal pillar width on the stability of retained …

Assessing Compliance To Water Resources And Reconstruction Framework During Post-Conflict Reconstruction Borno State, Muritala Olaniyi Oke Dr

Journal of African Conflicts and Peace Studies

Northeast and northwest of Nigeria have, as a result of activities of Boko Haram, bandit and kidnappers, had their public and private properties destroyed. Governments and other stakeholders, upon some successes of the military, have started post-conflict reconstruction to rebuild the war-torn urban and rural communities with the provision of water taking the center stage. This paper looks at the utilisation of Water Resources and a Reconstruction framework for integrating water projects into reconstruction processes. This paper rests on the argument that water projects during reconstruction should not be handled as “normal” water projects and that a more culturally and …

Fauna, Flora, And Land Cover Changes Over The Last Two Decades In The Mobile-Tensaw River Delta, Gabriel De Oliveria, Steven R. Schultze, Guilherme Mataveli

Technical Reports

A technical report documenting ecosystem changes to the Mobile-Tensaw River Delta region due to urban expansion over approximately two decades (2001-2019).

Current Challenges And Future Of Agricultural Genomes To Phenomes In The Usa, C. K. Tuggle, J. L. Clarke, B. M. Murdoch, E. Lyons, N. M. Scott, B. Benes, J. D. Campbell, H. Ching, C. L. Daigle, S. D. Choudhury, J.C. M. Dekkers, J.R.R. Dorea, D. S. Erti, B. O. Fragomeni, J. E. Fulton, C. R. Guadagno, D. E. Hagen, A. S. Hess, L. M. Kramer, C. J. Lawrence-Dill, A. E. Lipka, T. Lubberstedt, F. M. Mccarthy, P. S. Schnable

School of Natural Resources: Faculty Publications

No abstract provided.

Outpatient Fall Prevention In Ambulatory Adults 65 Years Old And Over, Dorothy L. Osborne-White

Doctor of Nursing Practice (DNP) Scholarly Projects

Abstract

Background: In the United States (U.S.), falls are the leading cause of injury among adults 65 and over, resulting in 36 million falls yearly (Moreland et al., 2020). According to the Centers for Disease Control and Prevention (CDC, 2023), one in four older adults experiences a fall each year. Falls are the world's second most prominent cause of accidental deaths (World Health Organization [WHO], 2021). Falls are the leading cause of both fatal and non-fatal injuries among older adults (Moreland et al., 2020).

Methods: A quality improvement project that included a fall bundle was implemented in a primary clinic. …

The Problem Of Teaching The Science Of Climate Change: A Call For Critical Thinking In Teacher Education And Professional Development, Isidoro Talavera

All Faculty and Staff Scholarship

This article discusses how to teach the science of climate change as a call for introducing critical thinking in science teacher education programs and professional development. It can be argued that to get a science student to develop his/her critical thinking skills to think outside the box, teachers must work to overcome the student’s and their own dogmatic beliefs, hardened biases, and motivated and/or distorted reasoning. The article shows how teacher education programs and professional development providers should change their methods and strategies by providing a framework to overcome the key elements of the problem of teaching the science of …

From Pollution To Resource: Advancing Swine Waste Treatment In The Usa, Viney P. Aneja, Ryke Longest, Matias B. Vanotti, Ariel A. Szogi, Gudigopuram B. Reddy

Faculty Scholarship

Concentrated animal feeding operations (CAFOs) have led to environmental challenges, specifically waste management. Swine CAFOs generate large amounts of waste, requiring proper treatment to avoid air and water pollution. Conventional waste management technologies, such as lagoon and spray field systems, do not prevent air and water pollution impacts. Research for the past few decades led to recommendations for waste treatment technologies superior to lagoons and spray fields. Private environmental sustainability initiatives focused on reducing greenhouse gas emissions in the food supply chain have implemented biogas digester projects for capturing methane in covered swine lagoons to reduce greenhouse gas emissions. However, …

2023 San Diego Regional Climate Collaborative Annual Report, San Diego Regional Climate Collaborative

San Diego Regional Climate Collaborative

The San Diego Regional Climate Collaborative is a network for public agencies that serves the San Diego region to share expertise, leverage resources and advance comprehensive solutions to facilitate climate change planning. By partnering with academia, nonprofits, and businesses, the SDRCC also works to leverage the profile of regional leadership. This is the 2023 San Diego Regional Climate Collaborative Annual Report.

Perennializing Marginal Croplands: Going Back To The Future To Mitigate Climate Change With Resilient Biobased Feedstocks, Salvador Ramirez Ii, Marty R. Schmer, Virginia L. Jin, Robert B. Mitchell, Catherine E. Stewart, Jay Parsons, Daren D. Redfearn, John J. Quinn, Gary E. Varvel, Kenneth P. Vogel, Ronald F. Follett

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Managing annual row crops on marginally productive croplands can be environmentally unsustainable and result in variable economic returns. Incorporating perennial bioenergy feedstocks into marginally productive cropland can engender ecosystem services and enhance climate resiliency while also diversifying farm incomes. We use one of the oldest bioenergy-specific field experiments in North America to evaluate economically and environmentally sustainable management practices for growing perennial grasses on marginal cropland. This long-term field trial called 9804 was established in 1998 in eastern Nebraska and compared the productivity and sustainability of corn (Zea mays L.)—both corn grain and corn stover—and switchgrass (Panicum virgatum …

Shannon Point Marine Center Research Intern, Ben (Benjamin Gregory) Molenhouse

College of the Environment Internship Reports

One of my first goals was to implement the skills I have gained at university and apply them to real world scenarios. I wanted to learn about the intricacies of Zostera marina (eelgrass) populations in Puget Sound as well as the critical factors that seagrasses play within the Salish Sea. I particularly wanted to research how local conditions effect phenotypes of eelgrass populations. Lastly, I set a goal to use the opportunity to conduct research to help further my knowledge of the effects that climate change has on eelgrass populations in marine ecosystems.

King County Department Of Natural Resources Esci Intern, Grace Landaverde

College of the Environment Internship Reports

My job as an environmental science intern at King County Department of Natural Resources and Parks was to develop and complete an independent research project that will both help King County’s Science and Technical Support Section and my development as a beginning toxicologist. During my internship, I worked with three mentors whose job was to guide and assist interns in choosing and completing their independent research projects. So far in my internship, I have learned how to find and refine a research question, submit a research proposal, professionally work with my mentors and fellow interns to develop and complete the …

Nwac Snow School Intern, Zoe Marion Kass

College of the Environment Internship Reports

Mt. Baker Snow School is a cooperative program between Mt. Baker Ski Area, the Northwest Avalanche Center, Western Washington University, and the U.S. Forest Service (Mt. Baker Ski Area Inc). The aim of the program is to provide a hands-on educational experience for middle school students to learn about snow science. Snow School is primarily run by volunteer instructors, along with a few professional lead instructors from NWAC and WWU, the education coordinator Devon Schoos, the onsite coordinator Pat Kennedy and the Mt. Baker Ski Area representative Rachel Grasso. As an intern with Mt. Baker Snow School, I worked as …

City Of Bellingham Restoration Intern, Josiah Giuseppe Cennamo-Rose

College of the Environment Internship Reports

Over the course of this internship, September - June, my team and I have facilitated volunteer work parties where everyone involved removed thousands of pounds of invasive plants from parks all over the city of Bellingham. Plants such as Himalayan Blackberry, Tansy ragwort, Bindweed, Creeping Thistle, Common Tansy, Mullein, Knockweed, Scotch Broom, Clematis (Old Man's Beard), and many more. We have planted hundreds if not thousands of native plants ranging from trees like Douglas firs and Western Red Cedars to small and medium shrubs like Oregon Grape and Ocean Spray.

Skagit Fisheries Enhancement Group Intern, Michaela M. Provancha

College of the Environment Internship Reports

During the Fall 2023 quarter, my internship focused mostly on the Salmon in the Classroom program, where elementary grade students learn about salmon and their life cycle before raising their own Coho eggs and releasing them as fry. This program runs over the course of most of the school year and ends in March with salmon release field trips. This program, more than anything, strives to create positive outdoor memories for the students that hopefully stay with them as they continue to grow older. Another main goal of this program is to introduce the idea of salmon and their life …

Western Washington University Palladium Nanoparticles, Brett M. Nunley

College of the Environment Internship Reports

Throughout my three quarters of chemistry research for my environmental science internship, I gained a significant amount of experience with not only the process of scientific research, but also technical skills such as operating various analytical instrumentation. When I started in spring quarter 2023, I began shadowing Riley McGraw as I was going to be taking over his project once he graduated after that quarter. Each member of the lab had their own reaction that was catalyzed by palladium and would form nanoparticles as the reaction progressed (Figure 1).

Wwu Mapping Accessibility Project Intern, Elilzabeth A. Bridge

College of the Environment Internship Reports

The overarching goal of the Mapping Accessibility Project (MAP) is to create new ways for people with disabilities to interact with Western Washington University’s campus, and to improve areas where accessibility is lacking. This project is headed by Dr. Francisco Laso and began Fall Quarter of 2023 with three undergraduate interns (including myself), and a consultant from the Spatial Analysis Institute: Stu Rekasse.

Lake Water Chemistry And Local Adaptation Shape Nacl Toxicity In Daphnia Ambigua, Mary Alta Rogalski, Elizabeth S. Baker, Clara M. Benadon

Biology Faculty Publications

Increasing application of road deicing agents (e.g., NaCl) has caused widespread salinization of freshwater environments. Chronic exposure to toxic NaCl levels can impact freshwater biota at genome to ecosystem scales, yet the degree of harm caused by road salt pollution is likely to vary among habitats and populations. The background ion chemistry of freshwater environments may strongly impact NaCl toxicity, with greater harm occurring in ion-poor, soft water conditions. In addition, populations exposed to salinization may evolve increased NaCl tolerance. Notably, if organisms are adapted to their natal lake water chemistry, toxicity responses may also vary among populations in a …

199965, David Kerstetter

PERC Albacore sPAT Data

Datasets (and supporting material) from 4sPAT electronic tags deployed on albacore caught by pelagic longline gear in the western North Atlantic.

199953, David Kerstetter

PERC Albacore sPAT Data

Datasets (and supporting material) from 4sPAT electronic tags deployed on albacore caught by pelagic longline gear in the western North Atlantic.

199949, David Kerstetter

PERC Albacore sPAT Data

Datasets (and supporting material) from 4sPAT electronic tags deployed on albacore caught by pelagic longline gear in the western North Atlantic.