cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of interactions between finite-sized particles and terminally attached polymer using numerical self-consistent-field theory
Creators: name: Steels, Bradley Michael
Publisher: name: University of British Columbia
Year: 2009

description: Non-specific protein adsorption is known to influence many processes. For example, fouling of food processing equipment or fouling of biomedical implants often occurs because of strong protein adsorption. Protein adsorption on these and other surfaces, such as biomaterials, can however be reduced by attaching polymer chains by one end to the surface. Terminally attached polymer chains have also found application in size-based chromatographic separations. The goal of this thesis is to improve our understanding of the way in which solute molecules interact with terminally attached polymer chains, and to use this knowledge to predict optimum system conditions for minimizing protein adsorption. We develop a numerical selfconsistent- field lattice model, based on an earlier model of Scheutjens and Fleer [1979; 1980], to calculate theoretical results for the polymer density distribution of isolated and interacting chains around a solute particle positioned at a fixed distance from a surface. In addition, the excess energy required to move the particle into the polymer chains (interaction energy) is calculated using a statistical mechanical treatment of the lattice model. The effect of system variables such as particle size, chain length, surface density and interaction parameters on density distributions and interaction energies is also studied. The model is first applied to the compression of a single polymer chain by a disc of finite radius. Results are compared to predictions of a previous scaling thermodynamic model by Subramanian et al. [1995]. We see no first order partial-escape transition as reported by Subramanian et al. Instead, we find that the energy required to compress the chain increases monotonically, becoming independent of chain length at very close compression Calculations for the interaction of a solute particle with a surface covered by many polymer chains (a brush) shows that the polymer segments will fill in behind the particle quite rapidly as it moves toward the surface. When there is no strong energetic attraction between the polymer and solute we predict that the interaction energy will be purely repulsive upon compression due to losses in conformational entropy of the polymer chains. Above a critical chain length, which depends upon particle size, a maximum in the force required to move the particle toward the surface is observed due to an engulfment of the particle as chains attempt to access the free volume behind the particle. If an attraction exists between the polymer and solute, such that a minimum in the interaction energy is seen, the optimum conditions for solute repulsion occur at the highest surface density attainable. Long chain length can lead to increased solute concentration within the polymer layer due to the fact that more favourable polymer-solute contacts are able to occur than with short chains at a similar entropic penalty.
On the infinite-dimensional QR algorithm
Creators: name: Colbrook, Matthew J.
name: Hansen, Anders C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 47A10, 65J10, 46N40, 03D55

description: Spectral computations of infinite-dimensional operators are notoriously difficult, yet ubiquitous in the sciences. Indeed, despite more than half a century of research, it is still unknown which classes of operators allow for computation of spectra and eigenvectors with convergence rates and error control. Recent progress in classifying the difficulty of spectral problems into complexity hierarchies has revealed that the most difficult spectral problems are so hard that one needs three limits in the computation, and no convergence rates nor error control is possible. This begs the question: which classes of operators allow for computations with convergence rates and error control? In this paper we address this basic question, and the algorithm used is an infinite-dimensional version of the QR algorithm. Indeed, we generalise the QR algorithm to infinite-dimensional operators. We prove that not only is the algorithm executable on a finite machine, but one can also recover the extremal parts of the spectrum and corresponding eigenvectors, with convergence rates and error control. This allows for new classification results in the hierarchy of computational problems that existing algorithms have not been able to capture. The algorithm and convergence theorems are demonstrated on a wealth of examples with comparisons to standard approaches (that are notorious for providing false solutions).We also find that in some cases the IQR algorithm performs better than predicted by theory and make conjectures for future study.
Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model
Creators: name: Albertus, C.
name: Hernandez, E.
name: Nieves, J.
name: Verde-Velasco, J. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We evaluate static properties and semileptonic decays for the ground state of doubly heavy $Ξ, Ξ', Ξ^*$ and $Ω, Ω', Ω^*$ baryons. Working in the framework of a nonrelativistic quark model, we solve the three--body problem by means of a variational ansazt made possible by heavy quark spin symmetry constraints. To check the dependence of our results on the inter-quark interaction we use five different quark-quark potentials that include a confining term plus Coulomb and hyperfine terms coming from one--gluon exchange. Our results for static properties (masses, charge and mass radii, magnetic moments...) are, with a few exceptions for the magnetic moments, in good agreement with a previous Faddeev calculation. Our much simpler wave functions are used to evaluate semileptonic decays of doubly heavy $Ξ,Ξ'(J=1/2)$ and $Ω, Ω'(J=1/2)$ baryons. Our results for the decay widths are in good agreement with calculations done within a relativistic quark model in the quark--diquark approximation.
description: 23 latex pages, 7 figures, 11 tables. Corrected version according to the discussion in the erratum to be published in Eur. Phys. J. A. Eur. Phys. J. A 32, 183 (2007); erratum Eur. Phys. J. A in press, available as online first
All van der Waals Integrated Nanophotonics
Creators: name: Ling, Haonan
name: Li, Renjie
name: Davoyan, Artur R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Integrated optics is at the heart of a wide range of systems from remote sensing and communications to computing and quantum information processing. Demand for smaller and more energy efficient structures stimulates search for more advanced material platforms. Here, we propose a concept of an all van der Waals photonics, where we show that electronically bulk transition metal dichalcogenide (TMDC) semiconductors are well fitted for the design of key optical components for nanoscale and integrated photonics. Specifically, we demonstrate theoretically that owing to low optical loss and high refractive index across near-infrared and telecom frequency bands, components made of bulk TMDCs can potentially outperform counterparts made of conventional 3D semiconductors, such as Si and III/Vs. We discuss several key quantum and classical optical components and show that bulk TMDCs may pave the way to smaller footprint devices, more energy efficient electro-optical modulators, and stronger quantum light-materials interaction. Enhanced optical performance, ease of integration, and a wide selection of materials suggest that bulk TMDCs may complement and, potentially, replace existing integrated photonics systems.
description: 12 pages, 5 figures
Evolution of lifestyles in Fusarium and allied genera
Creators: name: Crous, Pedro W
Publisher: name: Zenodo
Year: 2023

description: Talk presented at the "Special Interest Group (SIG) Symposium of the H2020-MSCA-RISE project “Mycobiomics”" of the Asian Mycological Congress 2023 (AMC2023), BEXCO, Busan, Republic of Korea, 10-13 October 2023
Machine learning for beam dynamics studies at the CERN Large Hadron Collider
Creators: name: Arpaia, P.
name: Azzopardi, G.
name: Blanc, F.
name: Bregliozzi, G.
name: Buffat, X.
name: Coyle, L.
name: Fol, E.
name: Giordano, F.
name: Giovannozzi, M.
name: Pieloni, T.
name: Prevete, R.
name: Redaelli, S.
name: Salvachua, B.
name: Salvant, B.
name: Schenk, M.
name: Camillocci, M. Solfaroli
name: Tomàs, R.
name: Valentino, G.
name: Van der Veken, F. F.
name: Wenninger, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Machine learning entails a broad range of techniques that have been widely used in Science and Engineering since decades. High-energy physics has also profited from the power of these tools for advanced analysis of colliders data. It is only up until recently that Machine Learning has started to be applied successfully in the domain of Accelerator Physics, which is testified by intense efforts deployed in this domain by several laboratories worldwide. This is also the case of CERN, where recently focused efforts have been devoted to the application of Machine Learning techniques to beam dynamics studies at the Large Hadron Collider (LHC). This implies a wide spectrum of applications from beam measurements and machine performance optimisation to analysis of numerical data from tracking simulations of non-linear beam dynamics. In this paper, the LHC-related applications that are currently pursued are presented and discussed in detail, paying also attention to future developments.
Dicke States Generation via Selective Interactions in Dicke-Stark Model
Creators: name: Mu, Fengchun
name: Gao, Ya
name: Yin, Hong-Da
name: Wang, Gangcheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a method to create selective interactions with Dicke-Stark model by means of time-dependent perturbation theory. By choosing the proper rotating framework, we find that the time oscillating terms depend on the number of atomic excitations and the number of photonic excitations. Consequently, the Rabi oscillation between selective states can be realized by properly choosing the frequency of the two-level system. The second order selective interactions can also be studied with this method. Then various states such as Dicke states, superposition of Dicke states and GHZ states can be created by means of such selective interactions. The numerical results show that high fidelity Dicke states and Greenberger-Horne-Zeilinger states can be created by choosing the proper frequency of two-level system and controlling the evolution time.
description: To be published in Optics Express
Non-Bloch quench dynamics
Creators: name: Li, Tianyu
name: Sun, Jia-Zheng
name: Zhang, Yong-Sheng
name: Yi, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quench dynamics of non-Hermitian topological models with non-Hermitian skin effects. Adopting the non-Bloch band theory and projecting quench dynamics onto the generalized Brillouin zone, we find that emergent topological structures, in the form of dynamic skyrmions, exist in the generalized momentum-time domain, and are correlated with the non-Bloch topological invariants of the static Hamiltonians. The skyrmion structures anchor on the fixed points of dynamics whose existence are conditional on the coincidence of generalized Brillouin zones of the pre- and post-quench Hamiltonians. Global signatures of dynamic skyrmions, however, persist well beyond such a condition, thus offering a general dynamic detection scheme for non-Bloch topology in the presence of non-Hermitian skin effects. Applying our theory to an experimentally relevant, non-unitary quantum walk, we explicitly demonstrate how the non-Bloch topological invariants can be revealed through the non-Bloch quench dynamics.
description: 11 pages, 6 figures
On the Evolution of the Dense Core Mass Function
Creators: name: Swift, Jonathan J.
name: Williams, Jonathan P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The mass distributions of dense cores in star-forming regions are measured to have a shape similar to the initial mass function of stars. This has been generally interpreted to mean that the constituent cores will form individual stars or stellar systems at a nearly constant star formation efficiency. This article presents a series of numerical experiments evolving distributions of dense cores into stars to quantify the effects of stellar multiplicity, global core fragmentation, and a varying star formation efficiency. We find that the different evolutionary schemes have an overall small effect on the shape of the resultant distribution of stars. Our results imply that at the current level of observational accuracy the comparison between the mass functions of dense cores and stars alone is insufficient to discern between different evolutionary models. Observations over a wide range of mass scales including the high or low-mass tails of these distributions have the largest potential for discerning between different core evolutionary schemes.
description: 6 pages, 3 figures, ApJ accepted
VLSI Design of an Integrated System for Iddt Testing
Creators: name: Itskovich, Mikhail
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: ADC
Equivalent Time
Iddt
Signal Processing
Testing

description: The growing efficiency in manufacturing of semiconductor devices combined with increased speed, size and performance of integrated products puts an incredible pressure on testing and verification technology. While negligible in the past, the cost of verification for a modern semiconductor design can be as high as half of the total manufacturing cost. In order to accommodate testing requirements, modern test equipment is required to operate up to 100 times faster than the state-of-the-art production circuits while using technologies several generations older. The challenge for a test engineer is to adopt older equipment to new testing needs. The challenge for a researcher is to develop unique methodology to overcome performance limitations and to reduce testing costs. The challenge of this dissertation is to design and manufacture a testing system for the next generation of testing equipment. This dissertation is based on prior research into the capability of Iddt and Vddt testing methods. The primary goal is to develop an interface for capturing high speed analog transients visible on the chip power supply. This involves acquisition of multiple transient signals in parallel at rates above 1GHz. This goal is achieved by adopting technologies such as Delta Sigma modulation for size reduction and Equivalent Time Sampling for timing resolution and bandwidth reduction. The secondary goal is to demonstrate the signal processing practicality of the proposed data acquisition system. A compatible signal processor design is required to demonstrate the validity of the proposed data acquisition approach. This dissertation follows through the research and design of a compatible signal processing architecture to serve as validation of current research and a practical link to future development of the combined architecture. All designs described in this work have been created from concept by the author and fabricated in parts over 5 testchips in 0.18um and 0.13um fabrication processes. The background research, the design process and the final results are described.
USAGE OF INTERACTIVE TEACHING TECHNOLOGIES
Creators: name: Tadjibaeva, Adila
name: Maxkamova, Dildora
name: Xusanov, Ibrohim
Publisher: name: Zenodo
Year: 2023

description: Interactive whiteboards have emerged as a powerful educational tool, revolutionizing the way teachers engage and interact with students in the classroom. This paper explores the effectiveness of interactive whiteboards in education and their potential to enhance learning outcomes. By providing a dynamic and interactive platform, these devices promote active student participation, collaborative learning, and information retention. The interactive features of whiteboards, such as touch-screen technology, digital annotation, and multimedia integration, offer diverse teaching possibilities across various subjects and grade levels. Furthermore, the integration of interactive whiteboards with educational software and online resources expands the scope of learning opportunities, providing access to a vast array of interactive content. This paper examines the benefits, challenges, and best practices associated with the implementation of interactive whiteboards in educational settings and highlights their potential to foster student engagement, critical thinking, and creativity. The findings emphasize the need for effective teacher training and ongoing support to maximize the educational benefits of interactive whiteboards.
Visualizing Team Performance Dynamics
Creators: name: Bergeron, Ryan Joseph
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Computer Science (0984)

description: In team-based environments, statistical analysis is used as the primary evaluation method for success. The standard practiced methods of analysis use histograms, statistical comparison, and other generic performance visualizations. However, grasping the real value that an individual has to team composition is difficult to achieve through standard analysis tools. Furthermore, these methods fail to convey the underlying relationships of measured performance attributes of a team's individuals. This work proposes a method to visualize the impact of composite performance through the visualization of loosely coupled multi-attribute data sets. The research focuses on the team dynamics of volleyball and the performance of individuals' tracked skill data stored in a relational database to facilitate multi-attribute data set filtering. There are three key components to our method of team composition performance analysis. Zones of Influence generated from data sets convey the spatial influence and range of a player. Scalar color mapping of hot and cold convey images of urgency. Height mapping of scalar data elicits understanding of magnitude and quantity of events. These three components used in conjunction with loosely coupled multi-attribute data visualize individual player impact on team performance.
Visualizing network security events using compound glyphs from a service-oriented perspective
Creators: name: Pearlman, Jason
Publisher: name: Maryland Shared Open Access Repository
Year: 2007
Subjects: Computer Science (0984)

description: Network security is the complicated field of controlling access within a computer network. One of the difficulties in network security is detecting the presence, severity, and type of a network attack. Knowledge of such an attack is used to mitigate its damage and prevent such attacks from occurring in the future. We present a new visualization of a computer network for security purposes by approaching the problem from a service-oriented perspective.  This approach involves a node graph visualization where each node is represented as a compound glyph, which gives details about the network activity for the specific node based upon its service usage. Furthermore, we visualize temporal activity using time slicing techniques in the compound glyph to give more details about the network and allow interactive controls for an administrator to actively monitor a network in order to react to security events quickly. Our resulting visualizations of networks successfully identified and described denial of service and compromised network attacks.
Online Alternate Generator against Adversarial Attacks
Creators: name: Li, Haofeng
name: Zeng, Yirui
name: Li, Guanbin
name: Lin, Liang
name: Yu, Yizhou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The field of computer vision has witnessed phenomenal progress in recent years partially due to the development of deep convolutional neural networks. However, deep learning models are notoriously sensitive to adversarial examples which are synthesized by adding quasi-perceptible noises on real images. Some existing defense methods require to re-train attacked target networks and augment the train set via known adversarial attacks, which is inefficient and might be unpromising with unknown attack types. To overcome the above issues, we propose a portable defense method, online alternate generator, which does not need to access or modify the parameters of the target networks. The proposed method works by online synthesizing another image from scratch for an input image, instead of removing or destroying adversarial noises. To avoid pretrained parameters exploited by attackers, we alternately update the generator and the synthesized image at the inference stage. Experimental results demonstrate that the proposed defensive scheme and method outperforms a series of state-of-the-art defending models against gray-box adversarial attacks.
description: Accepted as a Regular paper in the IEEE Transactions on Image Processing
The prevalence and pattern of pharmaceutical and excipient exposure in a neonatal unit in Slovenia
Creators: name: Fister, Petja
name: Spela Urh
name: Karner, Aleksandra
name: Krzan, Mojca
name: Paro-Panjan, Darja
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: Developmental Biology
subject: Biological Sciences
subject: Sociology
subject: FOS: Sociology
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Pharmacology
subject: Biochemistry

description: Objective: Because of the restraints on conducting studies on pharmaceutical use in sick newborns, many drugs are used off-label in this population. Moreover, industrially manufactured pharmaceuticals may contain different excipients, which may be either untested or not licensed for use in neonates. The aim of our study was to determine the prevalence and pattern of pharmaceutical and excipient exposure in newborns hospitalized at the Department of Neonatology, Ljubljana, Slovenia.Methods: A longitudinal prospective cross-sectional study was performed during a one-month period and included all hospitalized neonates. Route of administration, site of action, type of manufacture, licensing status, type and concentrations of excipients for all pharmaceuticals given to the neonates were determined.Results: Twenty seven different pharmaceutical preparations were prescribed to a total of 48 hospitalized newborns. In most cases, newborns were prescribed various pharmaceuticals that were not approved for use in this population. Newborns were exposed to 60 different excipients in industrially manufactured pharmaceutical preparations. More than half of the received pharmaceuticals contained potentially harmful and harmful excipients.Conclusions: Two-thirds of pharmaceutical preparations for neonates were used off-label. Newborns receive more auxiliary substances, which may be unsuitable for this age group and may even be toxic to them, via industrially manufactured pharmaceuticals.
Nonlinear interactions and localisation phenomena in many-body ultracold atomic systems
Creators: name: Caballero Benitez, Santiago Francisco
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: QC175.47.B65 C33 2011
subject: Bose-Einstein gas
subject: Electron gas

description: The recent advances in trapping, cooling, and manipulation of alkali atoms have opened the possibility to create and study novel states of matter. The quantum nature of matter becomes relevant at ultracold temperatures and emergent phenomena, such as Bose-Einstein condensation (BEC), are strongly affected by the interaction between atoms and their statistics. In this thesis we will address some of the physics in ultracold quantum gases, with Bose (Chapter 2 and Chapter 3) and Fermi statistics (Chapter 4), as well as ultracold Bose-Fermi mixtures (Chapter 3). We will discuss phenomena driven by nonlinear interactions, such as, localisation, macroscopic quantum self-trapping, intrinsic decoherence, Mott insulating symmetry states, formation of bro-ken symmetry states and the BCS-BEC crossover. In this thesis new major results can be summarised as follows: {u2022} The establishment of the relation between stationary states and decoherence origi-nated from many-body interactions in double well bosonic systems, Chapter 2. {u2022} The suppression or enhancement of localisation related phenomena (Superfluid and Mott-Insulator states or Macroscopic Quantum Self-trapping) in Bose-Fermi mixtures due to the presence of fermions and the interplay with many-body interactions in few site systems, Chapter 3. {u2022} The mapping of the BCS-BEC crossover problem to a magnetic impurity problem in the BCSside of a Feshbach resonance, and the possible origin of the pseudo gap in strongly interacting ultracold fermion systems, Chapter 4.
Visualization Design Billboards:  Exploring the Visualization Design Space
Creators: name: Rolnick, Shari Lynn
Publisher: name: Maryland Shared Open Access Repository
Year: 2009
Subjects: glyph-based visualization
visualization
vizualization design space

description: Designing an appropriate visualization of a dataset is a difficult task, often requiring even experts to spend vast amounts of time engaged in trial and error. Expert and less experienced users alike would benefit from a more intuitive way to explore the space of possible visualizations of a given dataset. In glyph- based visualizations, visualizations are determined by assigning dataset fields to visualization attributes, choosing a color map, and setting a scale factor. The space of possible visualizations includes all combinations of dataset field assignments, color map settings, and scale factor settings. Visualization Billboards strives to provide such a method, allowing the user to explore the visualization design space using a familiar paradigm, that of exploring an unfamiliar city. The user can move through the set of possible visualizations as though it were a three- dimensional space. At each point, a different visualization is displayed on a visualization billboard. Users can retrace their steps to see visualizations he has looked at in the past or move forward through new visualizations. The system uses the Visualization Toolkit ( VTK) to generate visualizations. It provides a graphical user interface that allows the user to explore the space. The system significantly simplifies the task of choosing an appropriate visualization for a dataset, allowing a user who is unfamiliar with visualization systems to find a satisfactory image.
Time-Dependent Synchrotron and Compton Spectra from Jets of Microquasars
Creators: name: Gupta, Swati
name: Boettcher, Markus
name: Dermer, Charles D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Jet models for the high-energy emission of Galactic X-ray binary sources have regained significant interest with detailed spectral and timing studies of the X-ray emission from microquasars, the recent detection by the HESS collaboration of very-high-energy gamma-rays from the microquasar LS~5039, and the earlier suggestion of jet models for ultraluminous X-ray sources observed in many nearby galaxies. Here we study the synchrotron and Compton signatures of time-dependent electron injection and acceleration, adiabatic and radiative cooling, and different jet geometries in the jets of Galactic microquasars. Synchrotron, synchrotron-self-Compton, and external-Compton radiation processes with soft photons provided by the companion star and the accretion disk are treated. An analytical solution is presented to the electron kinetic equation for general power-law geometries of the jets for Compton scattering in the Thomson regime. We pay particular attention to predictions concerning the rapid flux and spectral variability signatures expected in a variety of scenarios, making specific predictions concerning possible spectral hysteresis, similar to what has been observed in several TeV blazars. Such predictions should be testable with dedicated monitoring observations of Galactic microquasars and ultraluminous X-ray sources using Chandra and/or XMM-Newton.
description: Accepted for publication in ApJ; 37 manuscript pages, including 10 eps figures; uses AASTeX macros
Vehicular Networking for Intelligent and Autonomous Traffic Management
Creators: name: Gupte, Sanket Sunil
Publisher: name: Maryland Shared Open Access Repository
Year: 2011
Subjects: Smart Traffic
VANET
Vehicular Ad-Hoc Network
Vehicular Networks

description: Despite the push for using mass transit, the number of vehicles on the road is growing at a steady rate and traffic congestion has become a daily problem that most people suffer. This not only impacts the productivity of the population but also poses a safety risk.  Most of the technologies for intelligent highways focus on safety measures and increased driver awareness, and expect a centralized management for the traffic flow.  We present a new approach for enabling autonomous and adaptive traffic management through vehicular networks. By allowing data exchange between vehicles about route choices, congestion and traffic alerts, a vehicle makes a decision on the best course of action. Unlike centralized schemes that provide recommendations, our VANET-based Autonomous Management (VAM) approach factors in the destination and routes of nearby vehicles in deciding on whether rerouting is advisable. In addition, VAM leverages the presence of smart traffic lights and enables coordination between vehicles and light-controllers in order to ease congestion. The collective effect of all vehicles will be an autonomous reshape of the traffic pattern based on their destinations and road conditions. To validate our approach we have developed a graphical tool that not only enables the collection of performance statistics but also allows visualizing the effect on traffic. The implementation also supports smart traffic lights and configurable roads. The simulation results demonstrate the advantage of VAM and there is up-to 40% increase in overall throughput for fully cooperative drivers.
Following up TESS Single Transits With Archival Photometry and Radial Velocities
Creators: name: Yao, Xinyu
name: Pepper, Joshua
name: Gaudi, B. Scott
name: Dalba, Paul A.
name: Burt, Jennifer A.
name: Wittenmyer, Robert A.
name: Dragomir, Diana
name: Rodriguez, Joseph E.
name: Villanueva,, Steven
name: Stevens, Daniel J.
name: Stassun, Keivan G.
name: James, David J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: NASA's Transiting Exoplanet Survey Satellite (TESS) mission is expected to discover hundreds of planets via single transits first identified in their light curves. Determining the orbital period of these single transit candidates typically requires a significant amount of follow-up work to observe a second transit or measure a radial velocity orbit. In Yao et al. (2019), we developed simulations that demonstrated the ability to use archival photometric data in combination with TESS to "precover" the orbital period for these candidates with a precision of several minutes, assuming circular orbits. In this work, we incorporate updated models for TESS single transits, allowing for eccentric orbits, along with an updated methodology to improve the reliability of the results. Additionally, we explore how radial velocity (RV) observations can be used to follow up single transit events, using strategies distinct from those employed when the orbital period is known. We find that the use of an estimated period based on a circular orbit to schedule reconnaissance RV observations can efficiently distinguish eclipsing binaries from planets. For candidates that pass reconnaissance RV observations, we simulate RV monitoring campaigns that enable one to obtain an approximate orbital solution. We find this method can regularly determine the orbital periods for planets more massive than 0.5 M_J with orbital periods as long as 100 days.
description: 28 pages, 11 figures, accepted for publication in the Astronomical Journal
Using the Semantic Web to support knowledge integration, retrieval and expansion for ecoinformatics
Creators: name: Parafiynyk, Andriy
Publisher: name: Maryland Shared Open Access Repository
Year: 2007
Subjects: Computer Science (0984)
Biology, Bioinformatics (0715)
Biology, Ecology (0329)
semantic web
ecoinformatics
social media
blogging
ontology
flickr

description: Today, the information on the World Wide Web is growing at an astonishing rate providing a rapidly expanding source of valuable data. The abundance of distributed information on the Web increases the importance of efficient organization, sharing and retrieval of available data. This is particularly important in scientific research where efficient collaboration, exchange of results of experiments and observations, fast discovery of relevant information and data integration from different sources are the key elements for success. This thesis investigates how the Semantic Web can be used to facilitate: - combining information from multiple heterogeneous resources into well structured machine-understandable OWL documents that can be used by humans as well as automated intelligent agents - defining OWL ontologies which describe the concepts in Semantic Web representation of data and relationships among those concepts - answering complicated queries about the data - producing new knowledge as a result of applying ontologies and reasoning to the original data - efficient discovery of relevant information and obtaining data in well structured flexible format. We develop a set of ontologies, tools and applications within the Spire (Semantic Prototypes In Research Ecoinformatics) project (http://spire.umbc.edu) that help us to demonstrate how the aforementioned goals can be achieved. In particular, we develop a number of ontologies (SpireEcoConcepts, EthanKeywords, EthanAnimals, EthanPlants) which help us to describe biological data obtained from multiple sources (as well as relationships among different parts of that data) in a machine-understandable way and apply OWL reasoners to that data to find answers for various questions which are of great interest for environmentalists and ecologists. As an effort to exploit popular on-line resources and knowledge generated by hundreds of thousands of people, we designed the Splickr and SPOTter applications to produce Semantic Web content and show how Semantic Web technologies can be used to generate new knowledge from existing resources. The goal of our research is to investigate the advantages and successful use cases of the Semantic Web as well as identify improvements that can be made to boost the expressivity of Semantic Web languages and usefulness of Semantic Web technologies.
Multipartite Nonlocality without Entanglement in Many Dimensions
Creators: name: Niset, J.
name: Cerf, N. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a generic method to construct a product basis exhibiting Nonlocality Without Entanglement with $n$ parties each holding a system of dimension at least $n-1$. This basis is generated via a quantum circuit made of control-Discrete Fourier Transform gates acting on the computational basis. The simplicity of our quantum circuit allows for an intuitive understanding of this new type of nonlocality. We also show how this circuit can be used to construct Unextendible Product Bases and their associated Bound Entangled States. To our knowledge, this is the first method which, given a general Hilbert space $\bigotimes_{i=1}^n {\cal H}_{d_i}$ with $d_i\le n-1$, makes it possible to construct (i) a basis exhibiting Nonlocality Without Entanglement, (ii) an Unextendible Product Basis, and (iii) a Bound Entangled state.
description: 8 pages, 4 figures
Unconditionally secure one-way quantum key distribution using decoy pulses
Creators: name: Yuan, Z. L.
name: Sharpe, A. W.
name: Shields, A. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report here a complete experimental realization of one-way decoy-pulse quantum key distribution, demonstrating an unconditionally secure key rate of 5.51 kbps for a 25.3 km fibre length. This is two orders of magnitudes higher than the value that can be obtained with a non-decoy system. We introduce also a simple test for detecting the photon number splitting attack and highlight that it is essential for the security of the technique to fully characterize the source and detectors used.
description: 10 pages, 5 figures
Hilarion, Metropolit (Alfeyev): Geheimnis des Glaubens
Creators: name: Önder, Josef
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 69 Nr. 1 (2020): Ökumenische Rundschau, Band 69, Heft 1
Goalooru
Creators: name: Goalooru Jerry
Publisher: name: Zenodo
Year: 2021
Subjects: football

description: Система онлайн-трансляции Goalooru предоставляет результаты более чем 1000 футбольных и баскетбольных соревнований! Прямая трансляция, последние результаты, турнирные таблицы, расписание матчей.
 https://www.goalooru.com
description: Moscow
ALFALFA: an Exploration of the z=0 HI Universe
Creators: name: Giovanelli, Riccardo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Arecibo Legacy Fast ALFA (ALFALFA) Survey is a program aimed at obtaining a census of HI-bearing objects over a cosmologically significant volume of the local Universe. It will cover 7074 square degrees of the high latitude sky accessible with the Arecibo 305m telescope, using the 7-beam feed L-band feed array (ALFA). Started in February 2005, as of Summer of 2007 survey observations are 44\% complete. ALFALFA offers an improvement of about one order of magnitude in sensitivity, 4 times the angular resolution, 3 times the spectral resolution, and 1.6 times the total bandwidth of HIPASS. Although it will cover only one quarter the sky solid angle surveyed by HIPASS, ALFALFA will detect approximately six times as many sources, with a median depth of 110 Mpc. Preliminary results of ALFALFA are presented, with emphasis on those related with the Virgo cluster.
description: 13 pages, 8 figures, proceedings of "100 Years of Cosmology" conference, Venice 2007. to appear in Nuovo Cimento
Performance assessment of feedback controller output and process output
Creators: name: Ye, Rebecca Yan
Publisher: name: University of British Columbia
Year: 2009

description: Performance assessment tools are very useful in providing information about the control loop performance. To maintain high process performance, effective methodologies to measure the actual performance of the control loops are urgently needed.. -Since the industry normally has a fixed set-point for each loop, most of the control action is to reject disturbance, i.e. regulatory control. The most popular performance index for regulatory control nowadays is the Harris index due to it's simplicity of usage. The Harris index requires only routine operating data and prior knowledge of the process delay. It compares the variance of the process output with the benchmark of minimum variance. An application of the Harris index to PID controller tuning is discussed in this thesis. A new input/output index (I/O) is developed in this thesis. It requires more knowledge about the process model than the Harris index, but provides more information about the performance of a closed-loop system. The key feature of this //0 index is that the user can specify a benchmark which considers the balance between process output variance and the controller output variance. However, in this case, the process model needs to be identified so that the upper bound of the controller output variance and the lower bound of the process output variance can be obtained to set the benchmark for thorough performance assessment of the control system. In industry, during closed-loop control, both controller output and process output variances are desired to be as little as possible. Though Minimum Variance Control (MVC) may minimize the process output variance, it is not desirable in many cases due to excessive control action and sensitivity to changes in process dynamics. Therefore, balancing the process output and process input variances becomes very important. This new performance index uses the upper bound of the controller output and lower bound of the process output from MVC. In fact, it can indicate graphically the optimal operating point for each loop. Hence, this I/O index is more practical and reliable. An extensive simulation study was performed to examine the operation, usefulness and limitations of the performance indices. These simulations confirm the benefit of using the new I/O index for assessing regulatory control.
The cosmology of sub-MeV dark matter freeze-in
Creators: name: Dvorkin, Cora
name: Lin, Tongyan
name: Schutz, Katelin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark matter (DM) could be a relic of freeze-in through a light mediator, where the DM is produced by extremely feeble, IR-dominated processes in the thermal Standard Model plasma. In the simplest viable models with the DM mass below the MeV scale, the DM has a small effective electric charge and is born with a nonthermal phase-space distribution. This DM candidate would cause observable departures from standard cosmological evolution. In this work, we combine data from the cosmic microwave background (CMB), Lyman-$α$ forest, quasar lensing, stellar streams, and Milky Way satellite abundances to set a lower limit on freeze-in DM masses up to $\sim 20\,$keV, with the exact constraint depending on whether the DM thermalizes in its own sector. We perform forecasts for the CMB-S4 experiment, the Hydrogen Epoch of Reionization Array, and the Vera Rubin Observatory, finding that freeze-in DM masses up to $\sim 80\,$keV can be explored. These cosmological probes are highly complementary with proposed direct-detection efforts to search for this DM candidate.
description: 5+17 pages, 3+9 figures
Initial Reports of the Deep Sea Drilling Project - Volume 91
Creators: name: Menard, H.W.
name: Natland, J.
name: Jordan, T.H.
name: Orcutt, J.A.
name: The Leg 91 Science Party
Publisher: name: U.S. Government Printing Office
Year: 1987
Subjects: Deep Sea Drilling Project
Glomar Challenger
DSDP
Leg 91
Site 595
Site 596
Marine Seismic System
Tonga Trench
Southwest Pacific Ocean

description: This volume covers Leg 91 of the cruises of the Drilling Vessel Glomar Challenger. Leg 91 was dedicated to the deployment of the Marine Seismic System (MSS) at a site in the Southwest Pacific Basin, approximately 1000 km east of the Tonga Trench. The MSS is a downhole seismometer system developed by the Naval Ocean Research and Development Activity (NORDA) and the Defense Advanced Research Projects Agency (DARPA) to monitor regional seismicity in the deep-ocean environment for potential use in verifying compliance with nuclear test-ban treaties. The MSS deployment strategy was to emplace the BIP in a hole drilled by Glomar Challenger into the basaltic basement that underlies the oceanic sediments, which has several potential advantages over locating seismometers within the sediment column or directly on the seafloor. This volume documents the drilling and seismic experiments conducted by Glomar Challenger at DSDP Site 595, where the MSS was successfully deployed, and the hydraulic piston coring at Site 596, approximately 8 n. mi. west of Site 595. Leg 91 had both engineering and scientific objectives. The former centered on the operational testing of the complete MSS system. Leg 91 was the first full-scale deployment of the MSS into a new borehole. The scientific objectives of seismic experiments were of two principal types: (1) those related to the general problems of assessing and understanding the seismic recording environment of the oceanic crust below the sediments and (2) those pertaining to the specific problems of crustal and upper mantle structure in the southwest Pacific. Glomar Challenger sailed from Wellington, New Zealand, on January 16, 1983 to begin Leg 91, and arrived in Papeete, Tahiti on 20 February, 1983 to end the leg.
Charmonium Decays of $Y(4260), psi(4160), and psi(4040)
Creators: name: Coan, T. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using data collected with the CLEO detector operating at the CESR e+e- collider at sqrt s = 3.97-4.26 GeV, we investigate 15 charmonium decay modes of the psi(4040), psi(4160), and Y(4260) resonances. We confirm, at 11$σ$ significance, the BaBar Y(4260) --> pi+ pi- J/psi discovery, make the first observation of Y(4260) --> pi0 pi0 J/psi (5.1 sigma), and find the first evidence for Y(4260) --> K+ K- J/psi (3.7 sigma). We measure e+e- cross-sections at sqrt s = 4.26 GeV as sigma(pi+ pi- J/psi) = 58 +12-10 +- 4 pb, sigma(pi0 pi0 J/psi) = 23 +12 -8 +- 1 pb, and sigma(K+ K- J/psi) = 9 +9 -5 +- 1 pb, in which the uncertainties are statistical and systematic, respectively. Upper limits are placed on other decay rates from all three resonances.
description: 11 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2006/, Submitted to PRL
Analysis of the Scanning Tunneling Microscopy Images of the Charge Density Wave Phase in Quasi-one-dimensional Rb0.3MoO3
Creators: name: Machado-Charry, E.
name: Ordejon, P.
name: Canadell, E.
name: Brun, C.
name: Wang, Z. Z.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The experimental STM images for the CDW phase of the blue bronze RbMoO3 have been successfully explained on the basis of first-principles DFT calculations. Although the density of states near the Fermi level strongly concentrates in two of the three types of Mo atoms Mo-II and Mo-III, the STM measurement mostly probes the contribution of the uppermost O atoms of the surface, associated with the Mo-IO6 octahedra. In addition, it is found that the surface concentration of Rb atoms plays a key role in determining the surface nesting vector and hence the periodicity of the CDW modulation. Significant experimental inhomogeneities of the b* surface component of the wavevector of the modulation, probed by STM, are reported. The calculated changes in the surface nesting vector are consistent with the observed experimental inhomogeneities.
description: 4 pages 5 Figures