cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evaluating Satellite Detected Tropospheric Ozone Trends above Europe with Ozonesondes
Creators: name: Murray, Mia
name: Gaudel, Audrey
name: Cooper, Owen
name: Smith, Lesley
name: Cullen, Diann
name: Liggett, Amber
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2018

Tropospheric ozone is of significant concern due to its detrimental impact on human health, crops and climate. Assessment of the global tropospheric ozone burden and its trend requires global observations of tropospheric column ozone. Satellite observations are the only source of this important information. There are a total of five satellite products available for the community but they disagree regarding tropospheric column ozone trends. Continual monitoring of ozone profiles from in situ observations such as ozonesondes at different locations around the world provide data necessary for evaluating satellitedetected ozone variability and trends. This study quantified the trends of tropospheric column ozone as measured by ozonesondes over Hohenpeissenberg, Germany. While ozonesondes are flown with a frequency of once a week or less at most stations around the world, Hohenpeissenberg has on average 3-4 launches per week. The tropospheric column ozone was maximum in spring/summer in agreement with other mid-latitude sites. The analysis of tropospheric column ozone trends over Hohenpeissenberg showed no change during the 1996-2018 period. However, the regression analysis of seasonal ozone indicated a statistically significant negative trend during the summer months and a small positive trend during the winter, with no trend during the other seasons. We will use this robust data set to evaluate satellite-detected ozone trends above Europe and will report findings from three publicly available satellite products. This analysis is just the first step in a global-scale intercomparison of newly developed satellite products.
Microphone check
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Newbold, Lindsey
name: Spence, Justin
name: Kaser, Catalin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-041210-01: Microphone check (Verdena says the date in Hupa). Catalin Kaser was present for many of the recordings created on this day, participating in some of them.
The Lifecycle of Hollows on Mercury: An Evaluation of Candidate Volatile Phases and a Novel Model of Formation
Creators: name: Phillips, Michael S.
name: Moersch, Jeffrey E.
name: Viviano, Christina E.
name: Emery, Joshua P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A thermophysical model was developed to test the viability of 57 candidate hollow-forming volatiles within the hollow-formation model framework of Blewett et al. (2013). We find that the thermophysical properties of elemental sulfur (S) combined with the abundance of S on Mercury, make it the most likely hollow-forming volatile explored in this study. We propose a novel model for hollow formation in which a subsurface heat source drives sulfur-rich systems that deposit volatiles (importantly, S) in the near-surface at night within a "sulfur permafrost zone", and daytime solar heating drives sublimation to form hollows.
Using Machine Learning Techniques to Forecast Solar Energetic Particles
Creators: name: Brea, Pedro
name: Bain, Hazel
name: Adamson, Eric
name: Smith, BJ
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2019

Solar energetic particles (SEPs) endanger satellites, disrupt air traffic over the polar regions and high frequency radio communication.The capacity to predict SEP events on Earth ahead of time can lead to the preservation of important space and aeronautical assets as well as well as protection for humans in space. Considering that the methods of acceleration and transport of these particles is still an area of active research and that physics-based models are, at the moment, slower than empirical models, forecasters at the National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Center (SWPC) use the latter, combined with forecaster heuristics, to make real time decisions. This project attempts to improve upon the results of the current statistical model in use at SWPC (Proton Prediction Model) by using machine learning classification techniques. Machine learning models learn and make decisions using an observational training set and are currently much quicker than numerical models for issuing a forecast. SEP forecasts are made based on physical parameters associated with solar flares and coronal mass ejections. Preliminary results show that the logistic regression, Adaboost decision tree, and support vector machine algorithms show an improvement in forecasting skill over the current SWPC Proton Prediction Model.
The MURALES survey. III. Completing the MUSE observations of 37 3C low-z radio galaxies
Creators: name: Balmaverde, Barbara
name: Capetti, Alessandro
name: Marconi, Alessandro
name: Venturi, Giacomo
name: Chiaberge, M.
name: Baldi, R. D.
name: Baum, S.
name: Gilli, R.
name: Grandi, P.
name: Meyer, Eileen T.
name: Miley, G.
name: O'Dea, C.
name: Sparks, W.
name: Torresi, E.
name: Tremblay, G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the final observations of a complete sample of 37 radio galaxies from the Third Cambridge Catalog (3C) with redshift <0.3 and declination <20 degrees obtained with the VLT/MUSE optical integral field spectrograph. These data were obtained as part of the MURALES survey (a MUse RAdio Loud Emission line Snapshot survey) with the main goal of exploring the AGN feedback process in the most powerful radio sources. We present the data analysis and, for each source, the resulting emission line images and the 2D gas velocity field. Thanks to such an unprecedented depth these observations reveal emission line regions (ELRs) extending several tens of kiloparsec in most objects. The gas velocity shows ordered rotation in 25 galaxies, but in several sources it is highly complex. We find that the 3C sources show a connection between radio morphology and emission line properties. In the ten FRI sources the line emission region is generally compact, only a few kpc in size, and only in one case it exceeds the size of the host. Conversely, all but two of the FRII galaxies show large-scale structures of ionized gas. The median extent is 16 kpc with the maximum reaching a size of ~80 kpc. There are no apparent differences in extent or strength between the ELR properties of the FRII sources of high and low gas excitation. We confirm that the previous optical identification of 3C258 is incorrect: this radio source is likely associated with a QSO at z~ 1.54.
description: 29 pages; accepted for publication on A&A
A-A Highway Safety Study
Creators: name: Agent, Kenneth R.
name: Pigman, Jerry G.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2000
Subjects: subject: Transportation Engineering

description: As directed by Legislative action, a traffic safety study for the A-A Highway was to be conducted in fiscal year 1999-2000. An excerpt from the 1998-2000 budget and the Budget Memorandum included the following language related to the scope and direction of the study:  “The Department of Highways shall conduct an intensive traffic accident study on the A-A highway in fiscal year 1999-2000. It shall include an analysis of visibility, signage,lighting, turn lanes, and road striping at each public and private access. The accidents shall be identified by location and by fatalities, major injury, non injury, and minor injury. Causes for the accidents shall be summarized and recommendations made to reduce the high level of accidents on the A-A highway. A public hearing shall be held on the results of the study at a convenient location along the A-A Highway Corridor.”  Therefore, the objectives of this study were to: a) review the crash history of the A-A Highway to determine the number and rate of crashes, b) identify any high-crash locations, c) determine the characteristics of crashes occurring on this highway, and d) review the roadway characteristics and existing conditions (sight distances, traffic control, etc.) on the highway, and e) recommend countermeasures to address the types of collisions found in the analysis.
Projecting Extremes in California Current System
Creators: name: Cazares, Gabriela
name: Lovenduski, Nicole
name: Middlemas, Eleanor
name: Brady, Riley
name: Gilpin, Shay
name: Rader, Jamin
name: Wilson, Malcolm
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2019

With the substantial use of fossil fuels as a source of energy, the concentration of carbon dioxide in the atmosphere has increased significantly. Much of this anthropogenic carbon has been absorbed into the ocean, forcing a chemical reaction with water that culminates in the acidification of the ocean. The acidification of the ocean causes the decrease in carbonate ion concentration, creating an undersaturated system that increases susceptibility to shell dissolution. Modeling studies of the California Current system have projected drastic and rising acidification levels in this region of the ocean within the following century, implying a stressful future for all members of the systemâs food web and the fishing industry. Using the Community Earth System Model â Large Ensemble (CESM-LE) projected changes in the frequency of acidification events were analyzed on a monthly basis from 1920 through 2100 in the California Current system. Additionally, seasonal trends were calculated using saturation depth data in order to gain insight on mechanisms of acidification events. Furthermore, a case study of the CCE1 and CCE2 buoys was used for future validations of the CESM-LE projections. Results demonstrated how the frequency of acidification events is expected to rise more quickly than hypothesized, and how undersaturated water levels are rising to depths higher than ever recorded in history.
Using WRF to determine the effects of natural sensitivities on orographic precipitation
Creators: name: Gordillo, Nicolas
name: Jensen, Anders
name: Xue, Lulin
name: Voemel, Holger
name: Ladwig, Terra
name: Smith, Ebone
name: Taziny, Amin
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2019

Orographic precipitation is an important source of water for parts of the world. However, many factors affecting orographic precipitation are not well understood. This study uses modeling to investigate natural sensitivities of orographic precipitation in producing snow and in its spatial distribution. Based on observations from Seeded and Natural Orographic Wintertime clouds: The Idaho Experiment (SNOWIE), several variations of a 2-D idealized hill case were run using the Weather, Research, and Forecasting model V4.1 (WRF) in order to investigate snow precipitation. The idealized case used a simple terrain and an idealized temperature profile based on SNOWIE observations as realistic set-up for orographic precipitation. A series of wind and temperature profile variations were run to study the sensitivity of the spatial and temporal distribution of orographic snow. We found that the model was very sensitive to small changes in wind and temperature, with the largest amounts of snow being generated using the initial temperature profile. Increases in wind speed increased the amount of windward generated snow. Temperature increases and decreases of up to 3 K reduced both the windward and the leeward snowfall. Temperature has a large effect on cloud liquid water and ice content needed for producing snowfall in the model.
Spinor Green function in higher-dimensional cosmic string space-time in the presence of magnetic flux
Creators: name: Spinelly, J.
name: de Mello, E. R. Bezerra
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we investigate the vacuum polarization effects associated with quantum fermionic charged fields in a generalized $(d+1)-$dimensional cosmic string space-times considering the presence of a magnetic flux along the string. In order to develop this analysis we calculate a general expression for the respective Green function, valid for several different values of $d$, which is expressed in terms of a bispinor associated with the square of the Dirac operator. Adopting this result, we explicitly calculate the renormalized vacuum expectation values of the energy-momentum tensors, $_{Ren.}$, associated with massless fields. Moreover, for specific values of the parameters which codify the cosmic string and the fractional part of the ratio of the magnetic flux by the quantum one, we were able to present in closed forms the bispinor and the respective Green function for massive fields.
description: 27 pages, 6 figures. This version accepted for publication in JHEP contains a minor modification and two new references
Zero-cycles on self-products of varieties: some elementary examples verifying Voisin's conjecture
Creators: name: Laterveer, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C15, 14C25, 14C30

description: An old conjecture of Voisin describes how zero-cycles on a variety $X$ should behave when pulled-back to the self-product $X^m$ for $m$ larger than the geometric genus of $X$. Using complete intersections of quadrics, we give examples of varieties in any dimension and with arbitrarily high geometric genus that verify Voisin's conjecture.
description: 7 pages, to appear in Boll. Unione Mat. Italiana, comments welcome !
Low-Level Temperature Inversions Over Alaska's North Slope: Results from Radiosondes during 2018 Special Observing Periods
Creators: name: Lewis, Kylee
name: Hartten, Leslie M.
name: Smith, Lesley
name: Glanville, Anne
name: Putsavage, Katy
name: Benjamin, Jordan
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2019

The Year of Polar Prediction (YOPP) was created to improve weather prediction models and thus make weather forecasts more accurate. Ensuring that people have accurate and timely information about upcoming weather events is critical to ensuring human health and safety. Although YOPP focuses specifically on the polar regions, improving weather forecasts in the Arctic will lead to better forecasts across the world. The focus of this research was understanding low-level temperature inversions, which can reflect and affect larger-scale weather events. Understanding more about them will foster further knowledge of other aspects of the atmosphere, such as Arctic haze. Radiosonde profiles from UtqiaÄĄvik, Alaska collected during YOPP Special Observing Periods (SOPs), throughout which more data was gathered than is standard, were analyzed in this research. These data were analyzed using computer algorithms, statistical tests, and visual analyses. Results included plots of low-level inversions and statistics covering their depth, temperature gradient, and other factors. Examples of how inversion characteristics vary throughout the day and year were also shown. Winter months have more inversions and on average stronger inversions than summer months due to the lack of solar heating. Surface-based inversions are most likely to occur at 12:00 UTC during the summer months, when sunlight in minimal. The results from this research will be shared with scientists on the YOPP Supersite Model Intercomparison Project (YOPPsiteMIP), who will confront their weather forecasts with the observations to ensure forecasts are as accurate as possible.
Dynamical transition for a particle in a squared Gaussian potential
Creators: name: Touya, C.
name: Dean, D. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the problem of a Brownian particle diffusing in finite dimensions in a potential given by $ψ= ϕ^2/2$ where $ϕ$ is Gaussian random field. Exact results for the diffusion constant in the high temperature phase are given in one and two dimensions and it is shown to vanish in a power-law fashion at the dynamical transition temperature. Our results are confronted with numerical simulations where the Gaussian field is constructed, in a standard way, as a sum over random Fourier modes. We show that when the number of Fourier modes is finite the low temperature diffusion constant becomes non-zero and has an Arrhenius form. Thus we have a simple model with a fully understood finite size scaling theory for the dynamical transition. In addition we analyse the nature of the anomalous diffusion in the low temperature regime and show that the anomalous exponent agrees with that predicted by a trap model.
description: 18 pages, 4 figures .eps, JPA style
Eine freundliche Einladung an die Kirchen, ihre Suche nach Einheit zu erneuern
Creators: name: Link, Hans-Georg
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 55 Nr. 4 (2006): Ökumenische Rundschau, Band 55, Heft 4
Generating multi-chain configurations of an inhomogeneous melt from the knowledge of single-chain properties
Creators: name: Hömberg, Martin
name: Müller, Marcus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Mean-field techniques provide a rather accurate description of single-chain conformations in spatially inhomogeneous polymer systems containing interfaces or surfaces. Intermolecular correlations, however, are not described by the mean-field approach and information about the distribution of distance between different molecules is lost. Based on the knowledge of the exact equilibrium single-chain properties in contact with solid substrates, we generate multi-chain configurations that serve as nearly equilibrated starting configurations for molecular dynamics simulations by utilizing the packing algorithm of Auhl and co-workers [J. Chem. Phys. 119, 12718 (2003)] for spatially inhomogeneous systems, i.e., a thin polymer film confined between two solid substrates. The single-chain conformations are packed into the thin film conserving the single-chain properties and simultaneously minimizing local fluctuations of the density. The extent to which enforcing the near-incompressibility of a dense polymer liquid during the packing process is able to re-establish intermolecular correlations is investigated by monitoring intermolecular correlation functions and the structure function of density fluctuations as a function of the distance from the confining solid substrates.
description: 10 pages, 8 figures
Singular Thermal Relaxation Limit for the Moore-Gibson-Thompson Equation Arising in Propagation of Acoustic Waves
Creators: name: Bongarti, Marcelo
name: Charoenphon, Sutthirut
name: Lasiecka, Irena
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Lxx

description: Moore-Gibson-Thompson (MGT) equations, which describe acoustic waves in a heterogeneous medium, are considered. These are the third order in time evolutions of a predominantly hyperbolic type. MGT models account for a finite speed propagation due to the appearance of thermal relaxation coefficient τ {>} {0} in front of the third order time derivative. Since the values of τ are relatively small and often negligible, it is important to understand the asymptotic behavior and characteristics of the model when τ {\to} {0}. This is a particularly delicate issue since the τ- dynamics is governed by a generator which is singular as τ {\to} {0}. It turns out that the limit dynamics corresponds to the linearized Westervelt equation which is of a parabolic type. In this paper, we provide a rigorous analysis of the asymptotics which includes strong convergence of the corresponding evolutions over infinite horizon. This is obtained by studying convergence rates along with the uniform exponential stability of the third order evolutions. Spectral analysis for the MGT-equation along with a discussion of spectral uppersemicontinuity for both equations (MGT and linearized Westervelt) will also be provided.
description: Conference paper
2000 Highway Cost Allocation Update
Creators: name: Osborne, Monica L.
name: Pigman, Jerry G.
name: Thompson, Eric C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2000
Subjects: subject: Transportation Engineering

description: This update of the highway cost allocation study is the ninth in a recent series that began in the early 1980′s by the Kentucky Transportation Cabinetand the Kentucky Transportation Center. The primary objectives are to determine the level of revenue contribution and cost responsibility for each class ofhighway user. The base year of this study is FY 1999; the most recent time period for which revenue and cost data are available. Highway user or travelactivity for calendar year1998 is the most recent available. A basic premise of the study is that only state maintained highways are of interest in recouping thecosts expended to construct and maintain the system. In 1998, this system comprised 27,415 miles of the 73,360 miles of roads and streets in Kentucky, whileaccommodating 84 percent of all travel in the state.  There are 17 highway user classes with which revenue contribution and cost responsibility are associated. Primary sources of revenue include fueltaxes, registration fees, usage taxes, tolls, and other motor carrier and federal taxes and fees. Primary expenditure categories include construction (subdividedinto 6 categories), maintenance and traffic, administration, and enforcement. Construction was subdivided into planning and design; right of way; utilityrelocation; grade, drain, and surfacing; resurfacing; bridges; and miscellaneous.  Results from the analysis indicate that cost responsibility is borne most heavily by cars and motorcycles with 44.06 percent; followed by heavy truckswith gross weights of 60,000 pounds or more at 27.06 percent. Pickups and other vehicles registered in the 6,000 pound category are responsible for 21.63percent of the cost. The ratio of percentage revenue attributed to percentage cost allocated was also determined in the study. A ratio of one indicates that therevenue and cost percentages are in balance for a particular vehicle type. Cars (0.98), buses (0.86), and heavy trucks (0.90) contribute less revenue than theircost responsibility dictates.
The puzzling MILAGRO hot spots
Creators: name: Drury, Luke
name: Aharonian, Felix
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the reported detection by the MILAGRO experiment of localised hot spots in the cosmic ray arrival distribution and the difficulty of interpreting these observations. A model based on secondary neutron production in the heliotail is shown to fail. An alternative model based on loss-cone leakage through a magnetic trap from a local source region is proposed.
description: Accepted for publication in Astroparticle physics - reformatted to use journal style and with some minor changes at the request of the referee
Application of Statistical Methods to Improving Model Predictions of Rapid Intensification in Tropical Cyclones
Creators: name: MacDaniel, Ivy
name: Rozoff, Christopher
name: Vigh, Jonathan
name: Davis, Chris
name: Aponte, Kristen
name: Rivera-Torres, Nathalie G.
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2019

The goal of this research is to improve predictions of rapid intensification (RI) in tropical cyclones (TCs) using a statistical algorithm. Forecasting RI in TCs is notoriously difficult because even in generally favorable conditions (e.g., high column water vapor, low vertical wind shear and high sea surface temperature), the occurrence and timing of RI is uncertain. In this paper, we discuss the use of logistic regression as a post-processing tool for numerical weather prediction (NWP) TC models. The baseline NWP model used in this study is the Hurricane Weather Research and Forecasting (HWRF) model based on the 2018 operational configuration. We have extensive reforecasts from 2015-2017 and real-time data from 2018 for both the Atlantic and Eastern Pacific basins. From the HWRF forecasts, we derive predictors describing aspects of a TCs environment and inner-core, which are tested for inclusion in the HWRF LOGistic regression (HLOG) model. Top HLOG predictors were determined for each basin using objective feature selection and leave-one-year-out cross-validation. Independent testing over the years 2015-2017 gives Brier Skill Scores (BSSs) of 0.30 and 0.36 for Atlantic and East Pacific, respectively. Testing the model on 2018 real-time HWRF forecasts, the BSS values were 0.24 and 0.13 for the Atlantic and East Pacific models. This talk will also compare these results with other probabilistic RI methods. Examining individual cases in the 2018 season, HLOG generally produced higher probabilities for storms that experienced RI compared to storms that did not experience RI. Overall, the HLOG appears to be a promising, simple, and computationally cheap NWP model post-processing technique.
The impact of magnetic fields on momentum transport and saturation of shear-flow instability by stable modes
Creators: name: Fraser, A. E.
name: Terry, P. W.
name: Zweibel, E. G.
name: Pueschel, M. J.
name: Schroeder, J. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The Kelvin-Helmholtz (KH) instability of a shear layer with an initially-uniform magnetic field in the direction of flow is studied in the framework of 2D incompressible magnetohydrodynamics with finite resistivity and viscosity using direct numerical simulations. The shear layer evolves freely, with no external forcing, and thus broadens in time as turbulent stresses transport momentum across it. As with KH-unstable flows in hydrodynamics, the instability here features a conjugate stable mode for every unstable mode in the absence of dissipation. Stable modes are shown to transport momentum up its gradient, shrinking the layer width whenever they exceed unstable modes in amplitude. In simulations with weak magnetic fields, the linear instability is minimally affected by the magnetic field, but enhanced small-scale fluctuations relative to the hydrodynamic case are observed. These enhanced fluctuations coincide with increased energy dissipation and faster layer broadening, with these features more pronounced in simulations with stronger fields. These trends result from the magnetic field reducing the effects of stable modes relative to the transfer of energy to small scales. As field strength increases, stable modes become less excited and thus transport less momentum against its gradient. Furthermore, the energy that would otherwise transfer back to the driving shear due to stable modes is instead allowed to cascade to small scales, where it is lost to dissipation. Approximations of the turbulent state in terms of a reduced set of modes are explored. While the Reynolds stress is well-described using just two modes per wavenumber at large scales, the Maxwell stress is not.
description: 39 pages, 17 figures, preprint format
A Sparse Sampling-based framework for Semantic Fast-Forward of First-Person Videos
Creators: name: Silva, Michel Melo
name: Ramos, Washington Luis Souza
name: Campos, Mario Fernando Montenegro
name: Nascimento, Erickson Rangel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Technological advances in sensors have paved the way for digital cameras to become increasingly ubiquitous, which, in turn, led to the popularity of the self-recording culture. As a result, the amount of visual data on the Internet is moving in the opposite direction of the available time and patience of the users. Thus, most of the uploaded videos are doomed to be forgotten and unwatched stashed away in some computer folder or website. In this paper, we address the problem of creating smooth fast-forward videos without losing the relevant content. We present a new adaptive frame selection formulated as a weighted minimum reconstruction problem. Using a smoothing frame transition and filling visual gaps between segments, our approach accelerates first-person videos emphasizing the relevant segments and avoids visual discontinuities. Experiments conducted on controlled videos and also on an unconstrained dataset of First-Person Videos (FPVs) show that, when creating fast-forward videos, our method is able to retain as much relevant information and smoothness as the state-of-the-art techniques, but in less processing time.
description: Accepted at the IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI) 2020. arXiv admin note: text overlap with arXiv:1802.08722
Digging deeper into SUSY parameter space with the CMS experiment
Creators: name: Sekmen, Sezen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The classic searches for supersymmetry have not given any strong indication for new physics. Therefore CMS is designing dedicated searches to target the more difficult and specific supersymmetry scenarios. This contribution present three such recent searches based on 13 TeV proton-proton collisions recorded with the CMS detector in 2016, 2017 and 2018: a search for heavy gluinos cascading via heavy next-to-lightest neutralino in final states with boosted Z bosons and missing transverse momentum; a search for compressed supersymmetry in final states with soft taus; and a search for compressed, long-lived charginos in hadronic final states with disappearing tracks.
description: Contribution to the proceedings of 40th International Conference on High Energy physics - ICHEP2020, July 28 - August 6, 2020, Prague, Czech Republic (virtual meeting)
Mobility in wireless sensor networks : advantages, limitations and effects
Creators: name: Jerew, Oday Dakhil Hassan
Publisher: name: The Australian National University
Year: 2011
Subjects: subject: TK7872.D48 J47 2011
subject: Wireless sensor networks

description: The primary aim of this thesis is to study the benefits and limitations of using a mobile base station for data gathering in wireless sensor networks. The case of a single mobile base station and mobile relays are considered. A cluster-based algorithm to determine the trajectory of a mobile base station for data gathering within a specified delay time is presented. The proposed algorithm aims for an equal number of sensors in each cluster in order to achieve load balance among the cluster heads. It is shown that there is a tradeoff between data-gathering delay and balancing energy consumption among sensor nodes. An analytical solution to the problem is provided in terms of the speed of the mobile base station. Simulation is performed to evaluate the performance of the proposed algorithm against the static case and to evaluate the distribution of energy consumption among the cluster heads. It is demonstrated that the use of clustering with a mobile base station can improve the network lifetime and that the proposed algorithm balances energy consumption among cluster heads. The effect of the base station velocity on the number of packet losses is studied and highlights the limitation of using a mobile base station for a large-scale network. We consider a scenario where a number of mobile relays roam through the sensing field and have limited energy resources that cannot reach each other directly. A routing scheme based on the multipath protocol is proposed, and explores how the number of paths and spread of neighbour nodes used by the mobile relays to communicate affects the network overhead. We introduce the idea of allowing the source mobile relay to cache multiple routes to the destination through its neighbour nodes in order to provide redundant paths to destination. An analytical model of network overhead is developed and verified by simulation. It is shown that the desirable number of routes is dependent on the velocity of the mobile relays. In most cases the network overhead is minimized when the source mobile relay caches six paths via appropriately distributed neighbours at the destination. A new technique for estimating routing-path hop count is also proposed. An analytical model is provided to estimate the hop count between source-destination pairs in a wireless network with an arbitrary node degree when the network nodes are uniformly distributed in the sensing field. The proposed model is a significant improvement over existing models, which do not correctly address the low-node density situation.
A Recommended Master Plan for the Kentucky Transportation Cabinet to Build a Partnership with the Public
Creators: name: Hopwood, Theodore
name: Hartman, Donald G.
name: O'Connell, Lenahan
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2000
Subjects: subject: Transportation Engineering

description: Public involvement with proposed projects is necessary to facilitate their timely implementation by state highway agencies. New procedures are necessary to involve the public in the project development process and adequately address their concerns. Kentucky Transportation Center (KTC) researchers and Kentucky Transportation Cabinet Study Advisory Committee members cooperated to identify a set of recommended actions to be considered for implementation by the Cabinet. That work consisted of a series of “internal” reviews of problems and proposed solutions. That was supplemented by external reviews and interviews conducted by KTC researchers to identify “best practices” of other transportation agencies related to promoting public involvement and enhancing their public image. The recommended master plan is comprised of four Categories for Improvement, that addresses12 Principle Initiatives (major goals) that are to be initiated by 41underlying Key Action Steps. The Master Plan is to be implemented in a relatively short three-year time frame. It is intended to support the Cabinet’s adoption of context-sensitive design, to enhance the Cabinet’s ability to involve the public and other stakeholders and to bring the Cabinet to a new level of environmental sensitivity and action.
Effects of a Free Trade Agreement on U.S. and Mexican Sanitary and Phytosanitary Regulations
Creators: name: Forsythe, Ken
name: Lynch, Lori
name: Forsythe, Ken
name: Lynch, Lori
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural and Food Policy
Food Consumption/Nutrition/Food Safety
International Relations/Trade

description: Sanitary and phytosanitary (S&P) regulations that protect both U.S. and Mexican agriculture and consumers from exotic pests and diseases and other foodborne contamination (such as pesticide residues) will continue to be effective under the North American Free Trade Agreement (NAFTA). The presence of pests and diseases limits the movement of food and agricultural products between the United States and Mexico. Even with S&P measures in place, the risk of cross-border contamination continues because pests and diseases do not recognize national borders. The previous cooperative efforts between the United States and Mexico to prevent and control infestation and infection will likely continue regardless of the reduction or removal of trade-restricting measures. Both countries, however, desire to prevent the simultaneous proliferation of new S&P measures that might substitute for tariffs or quotas.
Experimental Maintenance Painting on the I-64 Riverside Expressway in Louisville
Creators: name: Hopwood, Theodore
name: Meade, Bobby W.
name: Palle, Sudhir
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2000
Subjects: subject: Transportation Engineering

description: The Riverside Parkway comprises some 3.2 miles of elevated steel (plate-girder) in downtown Louisville having approximately 24,054 tons of steel. The structures had existing coatings that contained lead. The project posed significant operational and public safety and operational constraints due to close proximity of the structures with residences and businesses along the entire route. In 1996, the KYTC Paint Team developed experimental specifications to re-paint the Parkway by overcoating. Surface preparation procedures included 3,000-psi pressure washing and power-tool cleaning. Containment enclosures were employed throughout the project and hazardous wastes were collected and disposed of. The Parkway spans were painted with a brushed-on spot coat and full brushed-on intermediate coat of aluminum-pigmented moisture cure polyurethane primer and rolled or spray-applied topcoat of high-gloss acrylic polyurethane. The project was let at a cost of about $1.20/ft2. The painting project began in September 1996 and was successfully completed in June 1998. A follow-up inspection in June 1999 revealed that the project was performing exceeding well despite its low cost.
Influence of Environmental Wind on Land-Sea Breeze Afternoon Thunderstorms Over Western Puerto Rico
Creators: name: Nieves Jiménez, Angelie T.
name: Ríos-Berríos, Rosimar
name: Werner, Kelly
name: Ahijevych, David
name: Maull, Keith
name: Williams, Christopher
name: Lezine, Ekaterina
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2019

Land and sea breeze circulations are induced by large temperature contrasts along coastlines. In Puerto Rico, a relatively small Caribbean island with a prolonged mountain range and completely surrounded by water, sea breezes are often present. This phenomenon—along
with terrain and other factors—affects thunderstorm formation on the island. This study focused on the direct consequence of the confluence of the land-sea breeze phenomenon and the upstream winds on thunderstorm location and intensity over the western side of the island. The research aimed to improve the prediction and understanding of these convective storms, which still remains a challenge. The data used for analyzing upstream winds were gathered from the San Juan National Weather Service soundings, and the ones used to determine sea breeze days were obtained from the Mayagüez Harbor Station. A climatological wind analysis determined winds predominantly came from the east, in addition to some southeasterlies and northeasterlies, and their direction depended on the subtropical high location and intensity during the sea breeze days. Radar data and numerical simulations with the Weather Research and Forecasting (WRF) model were examined to test the hypothesis that upstream wind conditions affect the location and intensity of thunderstorms associated with sea breeze. The results conclude that our hypotheses on rainfall location were correct at the time the convection started, but as time passed, thunderstorms moved and expanded due to the sea breeze duration and intensity, amongst other factors.
Results of Creep Tests on Concrete Cylinders for the Cable-Stayed Bridge at Owensboro, Kentucky
Creators: name: Eaton, Dan L.
name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2000
Subjects: subject: Transportation Engineering

description: The Kentucky Transportation Center was requested by the Kentucky Transportation Cabinet to conduct creep tests on the concrete from the new cable-stayed bridge over the Ohio River at Owensboro. The tests have been completed and the data is included herein.
Transcription of "Pingu Helps to Deliver the Mail"
Creators: name: Parker, Verdena
name: Escamilla, Ramón
name: Spence, Justin
name: Rice, Keren
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-111010-02: Transcription of the second narration of the animated video "Pingu Helps to Deliver the Mail" (file VP-101010-15).
Star Formation Near Photodissociation Regions: Detection of a Peculiar Protostar Near Ced 201
Creators: name: Goicoechea, Javier R.
name: Berne, Olivier
name: Gerin, Maryvonne
name: Joblin, Christine
name: Teyssier, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the detection and characterization of a peculiar low-mass protostar (IRAS 22129+7000) located ~0.4 pc from Ced 201 Photodissociation Region (PDR) and ~0.2 pc from the HH450 jet. The cold circumstellar envelope surrounding the object has been mapped through its 1.2 mm dust continuum emission with IRAM-30m/MAMBO. The deeply embedded protostar is clearly detected with Spitzer/MIPS (70 um), IRS (20-35 um) and IRAC (4.5, 5.8, and 8 um) but also in the K_s band (2.15 um). Given the large "near- and mid-IR excess" in its spectral energy distribution, but large submillimeter-to-bolometric luminosity ratio (~2%), IRAS 22129+7000 must be a transition Class 0/I source and/or a multiple stellar system. Targeted observations of several molecular lines from CO, 13CO, C18O, HCO+ and DCO+ have been obtained. The presence of a collimated molecular outflow mapped with the CSO telescope in the CO J=3-2 line suggests that the protostar/disk system is still accreting material from its natal envelope. Indeed, optically thick line profiles from high density tracers such as HCO+ J=1-0 show a red-shifted-absorption asymmetry reminiscent of inward motions. We construct a preliminary physical model of the circumstellar envelope (including radial density and temperature gradients, velocity field and turbulence) that reproduces the observed line profiles and estimates the ionization fraction. The presence of both mechanical and (non-ionizing) FUV-radiative input makes the region an interesting case to study triggered star formation.
title: Development of Advanced Mathematical Morphology Algorithms and their Application to the Detection of Disturbances in Power Systems
Creators: name: Zhu, J
Publisher: name: University of Liverpool Repository
Year: 2018

description: This thesis is concerned with the development of Mathematical morphology (MM)-based algorithms and their applications to signal processing in power systems, including typical power quality disturbances such as low frequency oscillations (LFO) and harmonics. Traditional morphological operators are extended to advanced ones in the thesis, including multi-resolution morphological gradient (MMG) algorithms, envelope extraction morphological filters (MF), LFO extraction MF and convolved morphological filters (CMF). These advanced morphological operators are applied to the detection and classification of power disturbances, detection of continuous and damped LFO, and the detection and removal of harmonics in power systems.
Richmond Public Transportation Study Report
Creators: name: O'Connell, Lenahan
name: Siria, Bruce
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2000
Subjects: subject: Transportation Engineering

description: This study looked at the possible costs and benefits associated with the creation of a small deviated fixed route bus service in Richmond. It concluded that the circumstances in Richmond favor the creation of such a system. It also concluded that only one route–operating one bus, twelve hours per day, Monday through Saturday–is needed at this time.
An Asymmetric Eclipse Seen Towards the Pre-Main Sequence Binary System V928 Tau
Creators: name: van Dam, Dirk
name: Kenworthy, Matthew
name: David, Trevor
name: Mamajek, Eric
name: Hillenbrand, Lynne
name: Cody, Anne Marie
name: Howard, Andrew
name: Isaacson, Howard
name: Ciardi, David
name: Rebull, Luisa
name: Stauffer, John
name: Patel, Rahul
name: Cameron, Andrew Collier
name: Rodriguez, Joseph
name: Pojmański, Grzegorz
name: Gonzales, Erica
name: Schlieder, Joshua
name: Hambsch, Franz-Josef
name: Dufoer, Sjoerd
name: Vanmunster, Tonny
name: Dubois, Franky
name: Vanaverbeke, Siegfried
name: Logie, Ludwig
name: Rau, Steve
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: K2 observations of the weak-lined T Tauri binary V928 Tau A+B show the detection of a single, asymmetric eclipse which may be due to a previously unknown substellar companion eclipsing one component of the binary with an orbital period $>$ 66 days. Over an interval of about 9 hours, one component of the binary dims by around 60%, returning to its normal brightness about 5 hours later. From modeling of the eclipse shape we find evidence that the eclipsing companion may be surrounded by a disk or a vast ring system. The modeled disk has a radius of $0.9923\,\pm\,0.0005\,R_*$, with an inclination of $56.78\,\pm\, 0.03^\circ$, a tilt of $41.22\,\pm\,0.05^\circ$, an impact parameter of $-0.2506\,\pm\,0.0002\,R_*$ and an opacity of 1.00. The occulting disk must also move at a transverse velocity of $6.637\,\pm\,0.002\,R_*\,\mathrm{day}^{-1}$, which depending on whether it orbits V928 Tau A or B, corresponds to approximately 73.53 or 69.26 $\mathrm{km s}^{-1}$. A search in ground based archival data reveals additional dimming events, some of which suggest periodicity, but no unambiguous period associated with the eclipse observed by K2. We present a new epoch of astrometry which is used to further refine the orbit of the binary, presenting a new lower bound of 67 years, and constraints on the possible orbital periods of the eclipsing companion. The binary is also separated by 18" ($\sim$2250 au) from the lower mass CFHT-BD-Tau 7, which is likely associated with V928 Tau A+B. We also present new high dispersion optical spectroscopy that we use to characterize the unresolved stellar binary.
description: 30 pages, 9 tables, 10 figures, accepted for publication in ApJ, GitHub repository for scripts and figures on https://github.com/dmvandam/v928tau