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Articles 1 - 30 of 35
Full-Text Articles in Physical Sciences and Mathematics
On Generating Functions In Additive Number Theory, Ii: Lower-Order Terms And Applications To Pdes, J. Brandes, Scott T. Parsell, C. Poulias, G. Shakan, R. C. Vaughn
On Generating Functions In Additive Number Theory, Ii: Lower-Order Terms And Applications To Pdes, J. Brandes, Scott T. Parsell, C. Poulias, G. Shakan, R. C. Vaughn
Mathematics Faculty Publications
We obtain asymptotics for sums of the form
Sigma(p)(n=1) e(alpha(k) n(k) + alpha(1)n),
involving lower order main terms. As an application, we show that for almost all alpha(2) is an element of [0, 1) one has
sup(alpha 1 is an element of[0,1)) | Sigma(1 <= n <= P) e(alpha(1)(n(3) + n) + alpha(2)n(3))| << P3/4+epsilon,
and that in a suitable sense this is best possible. This allows us to improve bounds for the fractal dimension of solutions to the Schrodinger and Airy equations.
Sustainability And The Evolution Of The Academic Library Ecosystem: Pressing Forward With The Greening Of Wcu's Presser And F.H. Green Libraries, Walt Cressler
Sustainability Research & Practice Seminar Presentations
No abstract provided.
West Chester's Energy Future, Will Williams
West Chester's Energy Future, Will Williams
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Human Rights And Social, Economic, & Environmental Justice: Ethics Of Samfundssind & Agape, Claire L. Dente
Human Rights And Social, Economic, & Environmental Justice: Ethics Of Samfundssind & Agape, Claire L. Dente
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Contempt In The Public Sphere, Joan Woolfrey
Contempt In The Public Sphere, Joan Woolfrey
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Soft Ion Sputtering Of Pani Studied By Xps, Afm, Tof-Sims, And Sts, Christopher M. Goodwin, Zachary E. Voras, Xiao Tong, Thomas P. Beebe, Jr.
Soft Ion Sputtering Of Pani Studied By Xps, Afm, Tof-Sims, And Sts, Christopher M. Goodwin, Zachary E. Voras, Xiao Tong, Thomas P. Beebe, Jr.
Chemistry Faculty Publications
Herein is a study of the soft sputtering method, gas cluster ion sputtering (GCIS), and its effects on the atomic, morphologic, and band structure properties of polyaniline (PAni) as studied with X-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry, atomic force microscopy, and scanning tunneling spectroscopy (STS). The GCIS source used was a 1000 argon atom cluster with 4 keV energy, which resulted in a sputter yield of 3.4 ± 0.2 × 10−3 nm3 per argon atom. Soft ion sputtering reduced the sample by explicitly removing the oxidized contaminants as determined by surface sensitive techniques: XPS and Time-of-flight secondary …
Improving The State Of Society And Making Men Happy: Rhetorical Citizenship In Historical And Contemporary Vegetarian/Vegan Discourses, Kristin E. Kondrlik
Improving The State Of Society And Making Men Happy: Rhetorical Citizenship In Historical And Contemporary Vegetarian/Vegan Discourses, Kristin E. Kondrlik
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Geologic Map Of The Structural Margin Of Northeastern North America, Daniel Melnick
Geologic Map Of The Structural Margin Of Northeastern North America, Daniel Melnick
Earth & Space Sciences Student Work
No abstract provided.
Low-Load Metal-Assisted Catalytic Etching Produces Scalable Porosity In Si Powders, Konstantin Tamarov, Riku Kiviluoto, Josph D. Swanson, Bret A. Unger, Alexis T. Ernst, Mark Aindow, Joakim Riikonen, Vesa-Pekka Lehto, Kurt W. Kolasinski
Low-Load Metal-Assisted Catalytic Etching Produces Scalable Porosity In Si Powders, Konstantin Tamarov, Riku Kiviluoto, Josph D. Swanson, Bret A. Unger, Alexis T. Ernst, Mark Aindow, Joakim Riikonen, Vesa-Pekka Lehto, Kurt W. Kolasinski
Chemistry Faculty Publications
The recently discovered low-load metal-assisted catalytic etching (LL-MACE) creates nanostructured Si with controllable and variable characteristics that distinguish this technique from the conventional high-load variant. LL-MACE employs 150 times less metal catalyst and produces porous Si instead of Si nanowires. In this work, we demonstrate that some of the features of LL-MACE cannot be explained by the present understanding of MACE. With mechanistic insight derived from extensive experimentation, it is demonstrated that (1) the method allows the use of not only Ag, Pd, Pt, and Au as metal catalysts but also Cu and (2) judicious combinations of process parameters such …
A Green New Deal For Schools: Inequality, Funding, And Finance In Pennsylvania, David I. Backer
A Green New Deal For Schools: Inequality, Funding, And Finance In Pennsylvania, David I. Backer
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Un Sdg 4: When Access To Education Is *Not* Enough, Christine M. Chiarelli-Helminiak
Un Sdg 4: When Access To Education Is *Not* Enough, Christine M. Chiarelli-Helminiak
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Ruggedized Color Measurement For Beer, Wort, And Malt, Roger Barth, Randall H. Reiger, Yuki Kim
Ruggedized Color Measurement For Beer, Wort, And Malt, Roger Barth, Randall H. Reiger, Yuki Kim
Chemistry Faculty Publications
The standard instrument for measuring malt, wort, and beer color is the spectrophotometer. Spectrophotometers are not rugged; they have critically aligned collimators, monochromators, lenses, slits, and mirrors that make them difficult to use and maintain in a production environment. Our research shows that wort and beer color can be measured accurately with rugged equipment based on light emitting diodes (LEDs) with results in agreement with those of a spectrophotometer. Two or more colored diodes were used. LED-based apparatus does not require critical alignment, is not highly sensitive to environmental conditions such as temperature, moisture, dust, and vibration, and can be …
Second-Best Prioritization Of Environmental Cleanups, Jacob Lariviere, Matthew J. Mcmahon, Justin Roush
Second-Best Prioritization Of Environmental Cleanups, Jacob Lariviere, Matthew J. Mcmahon, Justin Roush
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Listening To Young People: Philadelphia Youth Organizers' Perspectives On 2020 And Sustaining The Movement(S) Beyond, Hannah Ashley, Ananiya Jones, Lilah Saber, Mayana Ashley-Carner
Listening To Young People: Philadelphia Youth Organizers' Perspectives On 2020 And Sustaining The Movement(S) Beyond, Hannah Ashley, Ananiya Jones, Lilah Saber, Mayana Ashley-Carner
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Projecting Ev Distribution And Charging Demand: Dvrpc/Uc Davis's Ev Planning Toolkit, Adam Beam
Projecting Ev Distribution And Charging Demand: Dvrpc/Uc Davis's Ev Planning Toolkit, Adam Beam
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Response Of Photoluminescence Of H-Terminated And Hydrosilylated Porous Si Powders To Rinsing And Temperature, Kurt W. Kolasinski, Joseph D. Swanson, Benjamin Roe, Teresa Lee
Response Of Photoluminescence Of H-Terminated And Hydrosilylated Porous Si Powders To Rinsing And Temperature, Kurt W. Kolasinski, Joseph D. Swanson, Benjamin Roe, Teresa Lee
Chemistry Faculty Publications
The photoluminescence (PL) response of porous Si has potential applications in a number of sensor and bioimaging techniques. However, many questions still remain regarding how to stabilize and enhance the PL signal, as well as how PL responds to environmental factors. Regenerative electroless etching (ReEtching) was used to produce photoluminescent porous Si directly from Si powder. As etched, the material was H-terminated. The intensity and peak wavelength were greatly aected by the rinsing protocol employed. The highest intensity and bluest PL were obtained when dilute HCl(aq) rinsing was followed by pentane wetting and vacuum oven drying. Roughly half of the …
Infinite Sets Of Solutions And Almost Solutions Of The Equation N∙M = Reversal(N∙M) Ii, Viorel Nitica, Cem Ekinci
Infinite Sets Of Solutions And Almost Solutions Of The Equation N∙M = Reversal(N∙M) Ii, Viorel Nitica, Cem Ekinci
Mathematics Faculty Publications
Motivated by their intrinsic interest and by applications to the study of numeric palindromes and other sequences of integers, we discover a method for producing infinite sets of solutions and almost solutions of the equation N M reversal N M ⋅= ⋅ ( ) , our results are valid in a general numeration base b > 2 .
Updating Wcu’S Climate Action Plan: Creating A Version 2 For Our Community Of Learners, Bradley Flamm
Updating Wcu’S Climate Action Plan: Creating A Version 2 For Our Community Of Learners, Bradley Flamm
Sustainability Research & Practice Seminar Presentations
No abstract provided.
An Innovative "Green" Suzuki Coupling Reaction For The Crl-232 Lab, James W. Wheeler, David Dehm
An Innovative "Green" Suzuki Coupling Reaction For The Crl-232 Lab, James W. Wheeler, David Dehm
Chemistry Student Work
A major objective of “Green Chemistry” is to provide a more modern chemical experience in the laboratory along with reducing the amount of waste generated and make the lab safer for our students. The latest effort is the continuance to update the chemical reactions in the DHE 232 Organic Chemistry Lab by employing a “water-based” Suzuki Coupling Reaction. The 2010 Nobel prize was awarded to Heck, Negishi, and Suzuki for the palladium-catalyzed cross coupling reaction. This reaction has gained wide acceptance in industry where it is used in large scale reactions to make drugs (naproxen, 5-HT1a Agonist), agricultural chemicals (Boscalid® …
Infinite Sets Of Solutions And Almost Solutions Of The Equation N⋅M=Reversal(N⋅M) Ii, Cem Ekinci
Infinite Sets Of Solutions And Almost Solutions Of The Equation N⋅M=Reversal(N⋅M) Ii, Cem Ekinci
Mathematics Student Work
Motivated by their intrinsic interest and by applications to the study of numeric palindromes and other sequences of integers, we discover a method for producing infinite sets of solutions and almost solutions of the equation N⋅M=reversal(N⋅M), our results are valid in a general numeration base b>2.
Earth Day At 50: Sustainable Exhibition Planning During A Time Of Pandemic, Michael A. Di Giovine, Natalie Fenner, Tyler C. Haney, Foster W. Krupp, Ben Popp, Melina Schauermann
Earth Day At 50: Sustainable Exhibition Planning During A Time Of Pandemic, Michael A. Di Giovine, Natalie Fenner, Tyler C. Haney, Foster W. Krupp, Ben Popp, Melina Schauermann
Sustainability Research & Practice Seminar Presentations
No abstract provided.
West Chester University Fair Trade Campaign, Kathleen Tobelmann
West Chester University Fair Trade Campaign, Kathleen Tobelmann
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Solve Climate By 2030, Jessica L. Schedlbauer, Paul Morgan
Solve Climate By 2030, Jessica L. Schedlbauer, Paul Morgan
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Pack It Up, Pass It On: Ditch The Dumpster Wcu, Amy L. Maxcy
Pack It Up, Pass It On: Ditch The Dumpster Wcu, Amy L. Maxcy
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Stars In Our Eyes: Documenting Wcu Sustainability Efforts, Bradley Flamm
Stars In Our Eyes: Documenting Wcu Sustainability Efforts, Bradley Flamm
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Preparing Youth For Climate Action: Philadelphia Teachers Facilitating Student-Led Social Change In Elementary And Middle School Classrooms, Kathleen Riley, Elizabeth Soslau
Preparing Youth For Climate Action: Philadelphia Teachers Facilitating Student-Led Social Change In Elementary And Middle School Classrooms, Kathleen Riley, Elizabeth Soslau
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Regenerative Electroless Etching (U.S. Patent), Kurt W. Kolasinski, Jarno Salonen, Ermei Makila
Regenerative Electroless Etching (U.S. Patent), Kurt W. Kolasinski, Jarno Salonen, Ermei Makila
Chemistry Faculty Publications
A regenerative electroless etching process produces nanostructured semiconductors in which an oxidant (Ox 1 ) is used as a catalytic agent to facilitate reaction between a semiconductor and a second oxidant (Ox2) that would be unreactive (or slowly reactive compared to Ox 1 ) in the primary reaction. Ox2 is used to regenerate Ox1 , which can initiate etching by injecting holes into the semiconductor valence band. The extent of reaction is controlled by the amount of Ox2 added; the reaction rate, by the injection rate of Ox2 . This general strategy is demonstrated specifically to produce highly luminescent nanocrystalline …
Envisioning Higher Education For Sustainability After The Sh*T Hits The Fan, Paul Morgan, Rebecca Drake
Envisioning Higher Education For Sustainability After The Sh*T Hits The Fan, Paul Morgan, Rebecca Drake
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Project 1851 - A Journey In Sustainability: A Tech-Integrated And Regenerative Rental Property, Markos Duey
Project 1851 - A Journey In Sustainability: A Tech-Integrated And Regenerative Rental Property, Markos Duey
Sustainability Research & Practice Seminar Presentations
No abstract provided.
Geological Origins Of The Ridley Creek Valley Landscape And Its Influence On Human Land Use, Walt Cressler
Geological Origins Of The Ridley Creek Valley Landscape And Its Influence On Human Land Use, Walt Cressler
University Libraries Faculty Publications
Ridley Creek is a 24-mile long tributary of the Delaware River located in southeastern Pennsylvania. Its geological history has determined the topography of its watershed. The rolling Piedmont hills along most of its length, and the flat Coastal Plain at its confluence with the river have profoundly influenced the history of human land use within this landscape.