College of Letters and Science, University of Wisconsin–Madison
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Department of Physics, UW-Madison
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Dynamic Query Re-Planning Using QOOP
(2018-09-27)Modern data processing clusters are highly dynamic – both in terms of the number of concurrently running jobs and their resource usage. To improve job performance, recent works have focused on optimizing the cluster scheduler ... -
Making the case for data archiving: The changing “value proposition” of social science data archives
(2018-09-28)In this paper, we analyse how three social science data archives (SSDA) have adapted to provide value to different stakeholders over time. Drawing on historical administrative documents and interviews with current and former ... -
Exploration on Deep Drug Discovery: Representation and Learning
(2018-09-20)Virtual (computational) high-throughput screening provides a strategy for prioritizing compounds for experimental screens, but the choice of virtual screening algorithm depends on the dataset and evaluation strategy. We ... -
Influence of Molecular Shape on the Thermal Stability and Molecular Orientation of Vapor-Deposited Organic Semiconductors
(2018-09-14)High thermal stability and anisotropic molecular orientation enhances the performance of vapor-deposited organic semiconductors, but controlling these properties is a challenge in amorphous materials. To understand the ... -
Tenfold increase in the photostability of an azobenzene guest in vapor-deposited glass mixtures
(2018-09-10)Improvements to the photostability of organic glasses for use in electronic applications have generally relied on modification of chemical structure. We show here that the photostability of a guest molecule can also be ... -
Vapor-deposited Organic Glasses Exhibit Enhanced Stability Against Photodegradation
(Soft Matter, 2018-03-25)Photochemically stable solids are in demand for applications in organic electronics. Previous work has established the importance of the molecular packing environment by demonstrating that different crystal polymorphs ... -
Walkability, Amenities, and Housing Choice in Downtown Madison
(2018-08-10)High-Rise apartments are a quintessential living option for residents in major cities and downtown areas. Two important aspects of high-rise apartments are the amenities that are offered and how walkable the area surrounding ... -
Twin Cities LTR Extension: Purple Line
(2018-08-10)The 2004 introduction of the light rail transit system to the Twin Cities area has quickly become the most cost-efficient mode of transportation for residents. The continued success of the light rail has prompted the ... -
A Formula That Generates Hash Collisions
(2018-08-08)We present an explicit formula that produces hash collisions for the Merkle-Damgard construction. The formula works for arbitrary choice of message block and irrespective of the standardized constants used in hash functions, ... -
Overreliance on Classical Computing in Quantum Factorization
(2018-08-08)A 2012 quantum experiment factored 143 after performing some simplifications classically. Further research demonstrated that that experiment arguably performed the quantum factorizations of other numbers too, such as 56153. ... -
Citation Counts Infographic
(2018-07-16)Comic style infographic which explains why different databases have different citation counts for the papers indexed within the databases.(CC-BY-NC-4.0) -
Downstream hydrogen plasma cleaning for mass metrology at NIST
(2018-06-01)On International Metrology Day, May 20, 2019, the redefinition of the International System of Units (SI) is scheduled to be implemented. When this occurs the kilogram, the last remaining unit defined by a physical artifact, ... -
Deep Learning for Entity Matching: A Design Space Exploration
(2018-05-15)Entity matching (EM) finds data instances that refer to the same real-world entity. In this thesis we examine applying deep learning (DL) to EM, to understand DL's benefits and limitations. We review many DL solutions that ... -
Measurements of branching fractions using Fourier transform and grating spectroscopy
(2018-04-30)The measurement of lifetimes using laser-induced fluorescence at the University of Wisconsin-Madison has been one of the most productive experiments in the measurement of atomic spectroscopic data. The NIST bibliographic ... -
High energy density plasma simulations using ultracold neutral plasmas
(2018-04-27)Strongly-coupled Coulomb systems are typically fluid-like plasmas characterized by the ratio of the nearest-neighbor electrical potential energy to the average kinetic energy. When this ratio is near unity, the plasmas are ... -
UW Laboratory Astrophysics
(2018-04-27)In this talk I will describe the laboratory astrophysics program of the Jim Lawler group at the University of Wisconsin – Madison, focusing on the laboratory techniques and instruments used for the measurement of transition ... -
Spectroscopic study of the 7p J=1/2 and 7p J=3/2 states in neutral cesium-133
(2018-04-27)I will start with a few observations of connections between spectroscopy and other (seemingly unrelated) research topics, then focus on Doppler free spectroscopy on the 7p J=1/2 and 7p J=3/2 states in neutral cesium-133. ... -
A Fresh Look at Abundances of Iron-group Elements in Very Metal-Poor Stars
(2018-04-27)Studies of very metal-poor stars have focused attention on the neutron-capture (Z > 30) elements, whose dramatic star-to-star variations give us insights to element production in extreme, explosive nucleosynthesis environments. ... -
The astrophysical r-process: what we are learning from gravitational waves, dwarf galaxies, and stellar archaeology
(2018-04-27)Understanding the origin of the elements is one of the major challenges of modern astrophysics. The rapid neutron-capture process, or r-process, is one of the fundamental ways that stars produce the elements listed along ... -
Six Lines to Tell a Story
(2018-04-27)In this talk, I will highlight a recently completed investigation into a challenge brought against our earlier work on vanadium. The discrepancy between six transition probabilities and its resolution touches on several ...
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