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Articles 1 - 12 of 12
Full-Text Articles in Physical Sciences and Mathematics
Fluid Inclusion Analysis Of Halite: A Snapshot Of The Cambrian Explosion, Amy R.A. Lefebvre
Fluid Inclusion Analysis Of Halite: A Snapshot Of The Cambrian Explosion, Amy R.A. Lefebvre
Undergraduate Student Research Internships Conference
This research focused on obtaining a brief overview of information preserved within evaporite samples formed during the Early Cambrian. With the help of halite screening methods, fluid and gas analysis, through a micro thermometer and mass spectrometer, respectively, as well as trace element analysis conducted by Act Labs, results reflecting Earth's climate over 500 million years ago were obtained. These indicated the approximate weather conditions, and atmospheric composition, during this time period, within an intracontinental dessert location. Specifically, these results reflects a global warming period, with daily variations. Although much more research is needed in order to validate this summer's …
Uncovering The Mysteries Of Retention Ponds: Comparing The Abundance And Type Of Microplastics In Storm Water Ponds In London Ontario, Natalie Rose Minda
Uncovering The Mysteries Of Retention Ponds: Comparing The Abundance And Type Of Microplastics In Storm Water Ponds In London Ontario, Natalie Rose Minda
Undergraduate Student Research Internships Conference
Microplastics are plastics <5 mm (Liu, 2019; Arthur et al., 2009). They are created in two ways: Intentionally or from the fragmentation of larger pieces of plastic (National Ocean Service, 2021). They can negatively impact human, wildlife and ecosystem health in many ways depending on the exposure, type, size, and shape of the microplastic (Campanale, 2020). Retention ponds are often created in neighborhoods to collect water in order to prevent flooding. They also often serve as habitat for wildlife. Sediment samples were collected in two ponds in London Ontario both dredged in 2016. Samples were processed in the lab and further analyzed under the microscope to isolate the microplastics. Results have not been determined yet, but the abundance and type of microplastic varies in both ponds. Plastic pollution in retention ponds should be considered more, as it poses a threat to human and ecosystem health.
Using Stable-Isotopes To Determine The Effects Of Land-Use Change On Carbon Storage, Morgan Basile
Using Stable-Isotopes To Determine The Effects Of Land-Use Change On Carbon Storage, Morgan Basile
Undergraduate Student Research Internships Conference
Over the last century, there has been drastic conversion of natural vegetation to agriculture. The decomposition of plant tissue is transformed into soil organic matter that is rich in carbon and stored within soil aggregates. This research examines the effects of land-use change on carbon storage by using stable-isotopes of organic matter. The stable-isotopes of organic matter within aggregates will be used to quantify the amount of carbon that has been added to the soil after a change in land-use (e.g. restoration of agricultural land to grassland).
Meteorite Investigation And Classification, Olivia N. Benest
Meteorite Investigation And Classification, Olivia N. Benest
Undergraduate Student Research Internships Conference
Several meteorites arrive on Earth every day, but only a small percentage of them are found. They are easiest to spot on deserts or frozen ice. Western has a large number of unclassified meteorites found in the Northwest Africa (NWA) and Oman deserts. These meteorites include chondrites, achondrites, irons, and even Lunar and Martian meteorites. Classifying a meteorite requires detailed examination by optical microscopy, as well as micro X-ray diffraction (µXRD), and Electron Probe Microanalysis (EPMA), to observe their mineralogy (metal, oxide, sulfide, and silicate mineral phases), textures (e.g. chondrules, CAIs) and composition, in order to classify their petrologic type …
Development Of High-Resolution Meteor Spectra Analysis, Zhangqing Yang
Development Of High-Resolution Meteor Spectra Analysis, Zhangqing Yang
Undergraduate Student Research Internships Conference
Meteoroids are often billions of years old and as they ablate and ionize in the atmosphere, they give off light leaving us clues to the history of our solar system. In addition, their presence imposes serious risks to our equipment and astronauts in space. My research deals with analyzing High-Resolution Meteor Spectra, which are obtained by separating the light Meteors give off through a Diffraction Grating. Firstly, as the Meteor’s speed during ablation affects its spectrum, the position, speed, and trajectory of 40 well-tracked Meteors (picked from over 500) were determined using the programs Metal and Mirfit. Then, the spectra …
Simulating Salience: Developing A Model Of Choice In The Visual Coordination Game, Adib Sedig
Simulating Salience: Developing A Model Of Choice In The Visual Coordination Game, Adib Sedig
Undergraduate Student Research Internships Conference
This project is primarily inspired by three papers: Colin Camerer and Xiaomin Li’s (2019 working paper)—Using Visual Salience in Empirical Game Theory, Ryan Oprea’s (2020)—What Makes a Rule Complex?, and Caplin et. al.’s (2011)—Search and Satisficing. Over the summer, I worked towards constructing a model of choice for the visual coordination game that can model player behavior more accurately than traditional game theoretic predictions. It attempts to do so by incorporating a degree of bias towards salience into a cellular automaton search algorithm and utilizing it alongside a sequential search mechanism of satisficing. This …
The Application Of Machine Learning To Help Identify Oceanic Anoxic Event 2 In Shales, Marc Mechem
The Application Of Machine Learning To Help Identify Oceanic Anoxic Event 2 In Shales, Marc Mechem
Undergraduate Student Research Internships Conference
No abstract provided.
Numerical Modelling Of A Novel 3d T-Junction Microfluidic Droplet Generator, Andrew G.H. Roberts
Numerical Modelling Of A Novel 3d T-Junction Microfluidic Droplet Generator, Andrew G.H. Roberts
Undergraduate Student Research Internships Conference
No abstract provided.
You Are What You Eat: Micro-Ct Analysis Of Early Triassic Coprolites, Olivia N. Benest
You Are What You Eat: Micro-Ct Analysis Of Early Triassic Coprolites, Olivia N. Benest
Undergraduate Student Research Internships Conference
Poster summarizing coprolite research, micro-CT analysis results, and future studies.
Synthesis Of Photoluminescent Metal-Chalcogen Clusters For Potential Oled Applications, Aaron Mitchell
Synthesis Of Photoluminescent Metal-Chalcogen Clusters For Potential Oled Applications, Aaron Mitchell
Undergraduate Student Research Internships Conference
No abstract provided.
Speed And Accuracy For Partial Differential Equation Solvers, Aidan Grasby
Speed And Accuracy For Partial Differential Equation Solvers, Aidan Grasby
Undergraduate Student Research Internships Conference
This Research project consisted of testing multiple software used to solve partial differential equations to determine the fastest solver while not compromising other aspects such as accuracy. The larger project involved using electrodes and electric fields to treat brain tumours. An optimization program is required to determine electrode placement and this program must solve partial differential equations to determine the electric field for each electrode configuration. This optimization step is extremely slow so it is critical a faster partial differential equation solver is found. Therefore, I tested various software to determine the fastest solver that could then be linked with …
Studies Of Subvarieties Of Classical Complex Algebraic Geometry, Wenzhe Wang
Studies Of Subvarieties Of Classical Complex Algebraic Geometry, Wenzhe Wang
Undergraduate Student Research Internships Conference
My project in this USRI program is to study subvariety of classical complex algebraic geometry. I observed the orbit of elements in the unit sphere in space ℂ² ⊗ ℂ², the structure of unit sphere of ℂ² ⊗ ℂ². After this, I tried to generalize the result to ℂ^n ⊗ ℂ^n.