cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mocking Faint Black Holes during Reionization
Creators: name: Eide, Marius B.
name: Ciardi, Benedetta
name: Feng, Yu
name: Di Matteo, Tiziana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To investigate the potential abundance and impact of nuclear black holes (BHs) during reionization, we generate a neural network that estimates their masses and accretion rates by training it on 23 properties of galaxies harbouring them at $z=6$ in the cosmological hydrodynamical simulation Massive-Black II. We then populate all galaxies in the simulation from $z=18$ to $z=5$ with BHs from this network. As the network allows to robustly extrapolate to BH masses below those of the BH seeds, we predict a population of faint BHs with a turnover-free luminosity function, while retaining the bright (and observed) BHs, and together they predict a Universe in which intergalactic hydrogen is $15\%$ ionized at $z=6$ for a clumping factor of 5. Faint BHs may play a stronger role in H reionization without violating any observational constraints. This is expected to have an impact also on pre-heating and -ionization, which is relevant to observations of the 21 cm line from neutral H. We also find that BHs grow more efficiently at higher $z$, but mainly follow a redshift-independent galaxy-BH relation. We provide a power law parametrisation of the hydrogen ionizing emissivity of BHs.
description: 8 pages, 7 figures, accepted for publication in MNRAS
Grammatical elicitation: Grammatical relation marking
Creators: name: Palacio, Frank
name: Dabkowski, Maksymilian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: cab

description: Grammatical relations marking on verbs oubra 'hug,' ariha 'see,' and eibagu 'run' inflected for imperfective -jẽjn IPFV, potential g-, and future -ba.
A Complete Renormalization Group Trajectory Between Two Fixed Points
Creators: name: Abdesselam, Abdelmalek
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T08; 81T16; 81T17; 82B27; 37D10

description: We give a rigorous nonperturbative construction of a massless discrete trajectory for Wilson's exact renormalization group. The model is a three dimensional Euclidean field theory with a modified free propagator. The trajectory realizes the mean field to critical crossover from the ultraviolet Gaussian fixed point to an analog recently constructed by Brydges, Mitter and Scoppola of the Wilson-Fisher nontrivial fixed point.
description: 57 pages, Latex, 2 figures and 3 references added
A moiré superlattice on the surface of a topological insulator
Creators: name: Cano, Jennifer
name: Fang, Shiang
name: Pixley, J. H.
name: Wilson, Justin H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Twisting van der Waals heterostructures to induce correlated many-body states provides a novel tuning mechanism in solid-state physics. In this work, we theoretically investigate the fate of the surface Dirac cone of a three-dimensional topological insulator subject to a superlattice potential. Using a combination of diagrammatic perturbation theory, lattice model simulations, and ab initio calculations we elucidate the unique aspects of twisting a single Dirac cone with an induced moiré potential and the role of the bulk topology on the reconstructed surface band structure. We report a dramatic renormalization of the surface Dirac cone velocity as well as demonstrate a topological obstruction to the formation of isolated minibands. Due to the topological nature of the bulk, surface band gaps cannot open; instead, additional satellite Dirac cones emerge, which can be highly anisotropic and made quite flat. We discuss the implications of our findings for future experiments.
description: 27 pages, 12 figures
Evaluation of the Service Performance of Bridge Components
Creators: name: Hopwood, Theodore
name: Brown, Robert
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2004
Subjects: subject: Transportation Engineering

description: This study was initiated to provide review of common bridges to determine the performance of their components. Seven bridge types were selected that constituted 85 % of the Kentucky Transportation Cabinet (KYTC) bridge inventory. 319 bridges were inspected by Kentucky Transportation Cabinet (KTC) researchers, representing 5 about % of those bridges. Common details/components were identified and evaluated including features of interest to the KYTC Study Advisory Committee. In addition to those findings, KTC researchers evaluated KYTC National Bridge Inventory reports and maintenance needs forms for the same bridges.  Design modifications/material changes were recommended to improve performance of new bridges. Additionally, remedial measures were identified that would enhance the durability of existing bridges. Recommendations were also provided that would permit a more proactive approach to bridge maintenance activities.
Paroxytricha quadrinucleata
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Hypotrichea
Oxytrichida
Oxytrichidae
Paroxytricha
Paroxytricha quadrinucleata

description: Paroxytricha quadrinucleata 1 Foissner, 2016
Distribution. BRAZIL: (Foissner 2016). CHILE: (Foissner 2016). JAMAICA: (Foissner 2016). MEXICO: surroundings of the town of Xalapa (Foissner 2016), (Th). VENEZUELA: South margin of the Henri Pittier National Park, Biological Station Rancho Grande (Foissner 2016).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 11, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Safety and Health Concerns for KYTC and Contractor Personnel
Creators: name: Hopwood, Theodore
name: Palle, Sudhir
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2004
Subjects: subject: Transportation Engineering

description: This study was initiated to provide a review of safety and health issues related to Kentucky Transportation Cabinet (KYTC) construction activities including both KYTC and contractor personnel. Work included a literature search, interviews with KYTC resident engineers, and both a survey of and subsequent meeting with district construction safety coordinators. Recommendations are provided for implementing changes to improve safety and health regulatory compliance for both KYTC and contractor personnel.
AGuIX nanoparticle-nanobody bioconjugates to target immune checkpoint receptors
Creators: name: Carmès, Léna
name: Bort, Guillaume
name: Lux, François
name: Seban, Léa
name: Rocchi, Paul
name: Muradova, Zeinaf
name: Hagège, Agnès
name: Heinrich-Balard, Laurence
name: Delolme, Frédéric
name: Gueguen-Chaignon, Virginie
name: Truillet, Charles
name: Crowley, Stephanie
name: Bello, Elisa
name: Doussineau, Tristan
name: Dougan, Michael
name: Tillement, Olivier
name: Schoenfeld, Jonathan
name: Brown, Needa
name: Berbeco, Ross
Publisher: name: arXiv
Year: 2024
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Comparison of click chemistry and sortagging grafting strategies for functionalizing AGuIX nanoparticles with nanobodies to develop a tri-functional technology combining MRI imaging, radiotherapy, and immunotherapy by inhibiting immune checkpoints.
description: Nanoscale, 2024
A flash flood risk assessment of the Colorado Front Range using GIS
Creators: name: Edwards, Braxton
name: Wilhelmi, Olga
name: Morss, Rebecca
name: Golden, Mary
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2005
Subjects: Flash flood events
Social vulnerability
Critical facilities
Hydrology

Although significant research has been performed on impacts and mitigation of flash flood events, the methodology for assessing social vulnerability and regions at risk has not been fully developed. This project explored the environmental-social links of flood hazards and developed a GIS-based methodology for flood risk assessment. The assessment was based on a model that risk was a product of exposure to a hazard and societal vulnerability. Vulnerability was represented by population characteristics and distribution of critical facilities. Exposure was estimated by combining the Areal Mean Basin Average Rainfall (AMBER) method combined with GIS techniques. This method involved relating precipitation accumulation, averaged over a stream basin, to National Weather Service flash flood guidance values to identify basins with flooding potential. The vulnerability and the exposure were integrated in a GIS to estimate the total risk. The 1997 extreme precipitation event in Fort Collins, Colorado was used as a model to assess potential flood risk in two metropolitan areas: Fort Collins and Denver. Results yielded a GIS-based model that combines hydrometeorological information with social data, and allowed for radar-derived precipitation data to be integrated into the GIS to map key areas at risk in Fort Collins and Denver. Early identification of risk areas can assist emergency and flood-plain managers in developing response and mitigation measures. These results can provide a framework to expand this study of flood risk by introducing near-real time precipitation data, hydrological models and, detailed socio-economic geographic data.
Tsallis Statistics in High Energy Physics: Chemical and Thermal Freeze-Outs
Creators: name: Cleymans, J.
name: Paradza, M. W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an overview of a proposal in relativistic proton-proton ($pp$) collisions emphasizing the thermal or kinetic freeze-out stage in the framework of the Tsallis distribution. In this paper we take into account the chemical potential present in the Tsallis distribution by following a two step procedure. In the first step we used the redundancy present in the variables such as the system temperature, $T$, volume, $V$, Tsallis exponent, $q$, chemical potential, $μ$, and performed all fits by effectively setting to zero the chemical potential. In the second step the value $q$ is kept fixed at the value determined in the first step. This way the complete set of variables $T, q, V$ and $μ$ can be determined. The final results show a weak energy dependence in $pp$ collisions at the centre-of-mass energy $\sqrt{s}= 6$ GeV to 13 TeV. The chemical potential $μ$ at kinetic freeze-out shows an increase with beam energy. This simplifies the description of the thermal freeze-out stage in $pp$ collisions as the values of $T$ and of the freeze-out radius $R$ vary only mildly over a wide range of beam energies.
description: 12 pages, 6 figures
Enhancing access to climate model metadata via a web-accessible database
Creators: name: Fernandez, Alisha
name: Buja, Lawrence
name: Oxelson, Jennifer
name: Bevirt, Brian
name: Prinzi-Kimbro, Kim
name: Forbes, Shanna-Shaye
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2005

The Climate and Global Dynamics Division (CGD) at the National Center for Atmospheric Research (NCAR) wants to provide the greatest possible public access to their climate model research databases. CGD recognized that the information from their climate model runs could be better organized to allow for efficient discovery, analysis, and sharing of the research metadata. A number of factors were identified, including insufficient information in the data files to adequately describe the data and the difficulty of automatically generating catalogs of the experiments and data. A web-accessible metadata database was developed to enhance climate model metadata organization and accessibility. Using the spiral software development process, an iterative database design and creation process, with rapid reviews of each design, was used to ensure that the final product satisfied the user's requirements. The database was designed to meet a specific set of requirements from CGD for storing metadata from the Community Climate System Model (CCSM). A web application created a browser-based interface to the database that acts as a catalog for users to locate and sort the metadata in an online browser. Previously, CGD developers manually created a static website containing the metadata that proved to be time consuming and difficult to maintain. This project's web-accessible database enhances CGD's ability to share their metadata with the public, making their climate model results accessible to a much wider audience.
Formation of Embedded Microstructures by Thermal Activated Solvent Bonding
Creators: name: Ng, S. H.
name: Tjeung, R. T.
name: Wang, Z. F.
name: Lu, A. C. W.
name: Rodriguez, I.
name: De Rooij, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: We present a thermal activated solvent bonding technique for the formation of embedded microstrucutres in polymer. It is based on the temperature dependent solubility of polymer in a liquid that is not a solvent at room temperature. With thermal activation, the liquid is transformed into a solvent of the polymer, creating a bonding capability through segmental or chain interdiffusion at the bonding interface. The technique has advantages over the more commonly used thermal bonding due to its much lower operation temperature (30 degrees C lower than the material's Tg), lower load, as well as shorter time. Lap shear test indicated bonding shear strength of up to 2.9 MPa. Leak test based on the bubble emission technique showed that the bonded microfluidic device can withstand at least 6 bars (87 psi) of internal pressure (gauge) in the microchannel. This technique can be applied to other systems of polymer and solvent.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/EDA-Publishing)
Duality in Noncommutative Maxwell-Chern-Simons Theory
Creators: name: Rivelles, Victor O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Applying a master action technique we obtain the dual of the noncommutative Maxwell-Chern-Simons theory. The equivalence between the Maxwell-Chern-Simons theory and the self-dual model in commutative space-time does not survive in the non-commutative setting. We also point out an ambiguity in the Seiberg-Witten map.
description: 10 pages; Fifth International Conference on Mathematical Methods in Physics, Rio de Janeiro, April 24-28, 2006; PoS documentclass
Creating a software tool to reuse existing decoders
Creators: name: Forbes, Shanna-Shaye
name: Wilson, Anne
name: Butcher, Kirsten
name: Bhushan, Sonal
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2005

The Local Data Manager (LDM) was created by Unidata at the University Corporation for Atmospheric Research (UCAR) to relay atmospheric data in near real time to its community of universities and research facilities. Although the LDM successfully delivers data to its community, Unidata is considering other alternatives with more advanced options for data relay. One alternative to the LDM, the Network News Transfer Protocol-based InterNet News (INN), was shown to successfully deliver data. Since the interface that INN provides to these programs is different from the LDM's interface, a new piece of software to pass INN articles to existing decoders was required. Decoders are used to transform data into a variety of formats for purposes such as visualization and input to other programs. This project's aim was to create a software tool called a decoder wrapper that allows data to be decoded via INN just as it is decoded via LDM. The decoder wrapper was created in C and then upgraded to an object oriented design to facilitate code comprehension and future modification. The created decoder wrapper will facilitate the use of both LDM and INN on the relay network, by putting INN's data products into a format desired by INN users. It will also facilitate further testing within Unidata of INN's capabilities for data relay. This
Listening broadband physical model for microphones: a first step
Creators: name: Millot, Laurent
name: Valette, Antoine
name: Lopes, Manuel
name: Pelé, Gérard
name: Elliq, Mohammed
name: Lambert, Dominique
Publisher: name: arXiv
Year: 2024
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We will present a first step in design of a broadband physical model for microphones. Within the proposed model, classical directivity patterns (omnidirectional, bidirectional and cardioids family) are refound as limit cases: monochromatic excitation, low frequency and far-field approximation. Monophonic pieces of music are used as sources for the model so we can listen the simulation of the associated recorded sound field in realtime thanks to a Max/MSP application. Listening and subbands analysis show that the directivity is a function of frequential subband and source location. This model also exhibits an interesting proximity effect. Audio demonstrations will be given.Paper 6638 presented at the 120th Convention of the Audio Engineering Society, Paris, 2006
Search for a new Resonance decaying into Top-Antitop at Tevatron
Creators: name: Schwanenberger, Christian
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this report a new search for a narrow-width heavy resonance decaying into top quark pairs (X -> ttbar) in ppbar collisions at sqrt(s)=1.96 TeV has been performed using data collected by the D0 detector at the Fermilab Tevatron collider. The analysis considers ttbar candidate events in the lepton+jets channel using a lifetime tag to identify b-jets and the ttbar invariant mass distribution to search for evidence of resonant production. The analyzed dataset corresponds to an integrated luminosity of approximately 370 pb^-1. Since no evidence for a ttbar resonance X is found, upper limits on sigma(X) x B(X -> ttbar) for different hypothesized resonance masses using a Bayesian approach are set. Within a topcolor-assisted technicolor model, the existence of a leptophobic Z' boson with M(Z') < 680 GeV and width Gamma(Z') = 0.012 M(Z') can be excluded at 95% C.L..
description: Talk given at the "International Europhysics Conference on High Energy Physics", July 21st - 27th 2005, Lisboa, Portugal
Interactive Steering of Hierarchical Clustering
Creators: name: Yang, Weikai
name: Wang, Xiting
name: Lu, Jie
name: Dou, Wenwen
name: Liu, Shixia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Hierarchical clustering is an important technique to organize big data for exploratory data analysis. However, existing one-size-fits-all hierarchical clustering methods often fail to meet the diverse needs of different users. To address this challenge, we present an interactive steering method to visually supervise constrained hierarchical clustering by utilizing both public knowledge (e.g., Wikipedia) and private knowledge from users. The novelty of our approach includes 1) automatically constructing constraints for hierarchical clustering using knowledge (knowledge-driven) and intrinsic data distribution (data-driven), and 2) enabling the interactive steering of clustering through a visual interface (user-driven). Our method first maps each data item to the most relevant items in a knowledge base. An initial constraint tree is then extracted using the ant colony optimization algorithm. The algorithm balances the tree width and depth and covers the data items with high confidence. Given the constraint tree, the data items are hierarchically clustered using evolutionary Bayesian rose tree. To clearly convey the hierarchical clustering results, an uncertainty-aware tree visualization has been developed to enable users to quickly locate the most uncertain sub-hierarchies and interactively improve them. The quantitative evaluation and case study demonstrate that the proposed approach facilitates the building of customized clustering trees in an efficient and effective manner.
description: Accepted for IEEE Transactions on Visualization and Computer Graphics (TVCG)
Water vapor estimates using simultaneous S and Ka Band radar measurements
Creators: name: Goodman, Keith
name: Ellis, Scott
name: Kessinger, Cathy
name: Worster, Cindy
name: Weber, William
name: Reynolds, Amber
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2005

Water vapor is a key component in defining Earth's climate and has a vital role in the Earth's hydrologic cycle. Despite its significance, the water vapor content in the atmosphere has often been difficult to measure with sufficient spatial and temporal resolution. In this experiment, path-integrated water vapor estimates in the boundary layer were retrieved by using the ground-based, dual-frequency S-band and Ka-band radars (S-Pol-Ka). The water vapor retrieval method consisted of the following procedures: using quality control criteria to minimize contamination from Mie scattering, estimating the atmospheric attenuation of the Ka-band, and using Hans Liebe's radiative transfer model to formulate a polynomial equation that computed the water vapor content from the Ka-band attenuation. The data used to obtain the water vapor estimates were collected on 11, 14, 16, and 19 January 2005 during the Rain In Cumulus over the Ocean (RICO) Experiment. On these days, simultaneous measurements were recorded by the S-Pol-Ka radar system and dropsondes were released from research aircraft. Weather echoes in the radar domain offered numerous paths for water vapor retrieval. Dropsonde data provided independent measurements of the water vapor content and were used to validate the results from the retrieval method. On the four days analyzed, water vapor estimates compared favorably with dropsonde measurements along some radar paths while others showed considerable scatter. Based on acceptable trends of the estimates, preliminary results suggested that this methodology can successfully retrieve estimates of water vapor content. Additional work is needed to understand the limitations of the technique.
Rieske, Uwe (Hg.): Migration und Konfession ...
Creators: name: Voigt, Karl Heinz
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 61 Nr. 4 (2012): Ökumenische Rundschau, Band 61, Heft 4
Investigating airflow effects on the accuracy of cloud particle measurements
Creators: name: Goyea, Olusegun
name: Rogers, David
name: Horst, Thomas
name: Stobbs, Mark
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2005
Subjects: Cloud droplet measurements
Microphysics
Condensation
Coalescence
Light scattering
Probe

Accurate cloud droplet measurements are important for an increased understanding of cloud microphysical processes, especially the nucleation and growth of cloud particles through condensation and coalescence. In addition, cloud droplets play a significant role in the formation of precipitation; therefore, accurate measurements are important for precipitation forecasting. A Forward Scattering Spectrometer Probe (FSSP) is a cloud droplet measuring instrument that uses light scattering intensity in determining size distribution and concentration. A German version of the FSSP was developed, with minor structural changes, in order to reduce inaccuracies associated with cloud droplet measurements. The goal of the research was to investigate the effects of changes in droplet velocities and trajectories during measurement using the standard and modified FSSP probes. This investigation will help determine a probe configuration with improved measurement capabilities. Two modeling and simulation packages were used; Gambit and Fluent. Gambit was used to generate probe prototype models, 3d computational grids and the computational flow domain. Fluent was used for flow simulations under specified boundary and operating conditions. The analysis examined flow fields at various airspeeds (focusing on 145m/s as a case study), angles of attack and trajectories of 20 - 50Îźm sized particles passing through the measurement volume. The results obtained showed change in particle velocities within the sampling volume for both probes. In addition, both probe simulations showed evidence of particle trajectories approaching the sampling area. This plays an important role in determining the amount of particle passing through the laser beam. Further investigations have to be carried out in order to determine the more suitable probe configuration.
The impact of the halo spin-concentration relation on disc scaling laws
Creators: name: Posti, Lorenzo
name: Famaey, Benoit
name: Pezzulli, Gabriele
name: Fraternali, Filippo
name: Ibata, Rodrigo
name: Marasco, Antonino
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy scaling laws, such as the Tully-Fisher, mass-size and Fall relations, can provide extremely useful clues on our understanding of galaxy formation in a cosmological context. Some of these relations are extremely tight and well described by one single parameter (mass), despite the theoretical existence of secondary parameters such as spin and concentration, which are believed to impact these relations. In fact, the residuals of these scaling laws appear to be almost uncorrelated with each other, posing significant constraints on models where secondary parameters play an important role. Here, we show that a possible solution is that such secondary parameters are correlated amongst themselves, in a way that removes correlations in observable space. In particular, we focus on how the existence of an anti-correlation between the dark matter halo spin and its concentration -- which is still debated in simulations -- can weaken the correlation of the residuals of the Tully-Fisher and mass-size relations. Interestingly, using simple analytic galaxy formation models, we find that this happens only for a relatively small portion of the parameter space that we explored, which suggests that this idea could be used to derive constraints to galaxy formation models that are still unexplored.
description: Accepted for publication in A&A
High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector
Creators: name: 2 Collaboration
name: Akhmetshin, R. R.
name: Aulchenko, V. M.
name: Banzarov, V. Sh.
name: Barkov, L. M.
name: Bashtovoy, N. S.
name: Bondar, A. E.
name: Bondarev, D. V.
name: Bragin, A. V.
name: Dhawan, S. K.
name: Eidelman, S. I.
name: Epifanov, D. A.
name: Fedotovich, G. V.
name: Gabyshev, N. I.
name: Gorbachev, D. A.
name: Grebenuk, A. A.
name: Grigoriev, D. N.
name: Hughes, V. W.
name: Ignatov, F. V.
name: Karpov, S. V.
name: Kazanin, V. F.
name: Khazin, B. I.
name: Koop, I. A.
name: Krokovny, P. P.
name: Kuzmin, A. S.
name: Logashenko, I. B.
name: Lukin, P. A.
name: Lysenko, A. P.
name: Mikhailov, K. Yu.
name: Miller, J. P.
name: Milshtein, A. I.
name: Nesterenko, I. N.
name: Nikulin, M. A.
name: Okhapkin, V. S.
name: Otboev, A. V.
name: Perevedentsev, E. A.
name: Popov, A. S.
name: Redin, S. I.
name: Roberts, B. L.
name: Root, N. I.
name: Ruban, A. A.
name: Ryskulov, N. M.
name: Shamov, A. G.
name: Shatunov, Yu. M.
name: Shwartz, B. A.
name: Sibidanov, A. L.
name: Sidorov, V. A.
name: Skrinsky, A. N.
name: Smakhtin, V. P.
name: Snopkov, I. G.
name: Solodov, E. P.
name: Thompson, J. A.
name: Yudin, Yu. V.
name: Zaitsev, A. S.
name: Zverev, S. G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a measurement of the pion form factor based on e+e- annihilation data from the CMD-2 detector in the energy range 0.6
description: 18 pages, 10 figures. Added comparison with KLOE measurement, minor updates. Accepted by PLB
Temperature compensation in high accuracy accelerometers using multi-sensor and machine learning methods
Creators: name: Iafolla, Lorenzo
name: Santoli, Francesco
name: Carluccio, Roberto
name: Chiappini, Stefano
name: Fiorenza, Emiliano
name: Lefevre, Carlo
name: Loffredo, Pasqualino
name: Lucente, Marco
name: Morbidini, Alfredo
name: Pignatelli, Alessandro
name: Chiappini, Massimo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Temperature is a major source of inaccuracy in high-sensitivity accelerometers and gravimeters. Active thermal control systems require power and may not be ideal in some contexts such as airborne or spaceborne applications. We propose a solution that relies on multiple thermometers placed within the accelerometer to measure temperature and thermal gradient variations. Machine Learning algorithms are used to relate the temperatures to their effect on the accelerometer readings. However, obtaining labeled data for training these algorithms can be difficult. Therefore, we also developed a training platform capable of replicating temperature variations in a laboratory setting. Our experiments revealed that thermal gradients had a significant effect on accelerometer readings, emphasizing the importance of multiple thermometers. The proposed method was experimentally tested and revealed a great potential to be extended to other sources of inaccuracy, such as rotations, as well as to other types of measuring systems, such as magnetometers or gyroscopes.
Managing Risk in Ethanol Processing Using Formula Pricing Contracts
Creators: name: Bullock, David W.
name: Wilson, William W.
name: Bullock, David W.
name: Wilson, William W.
Publisher: name: Unknown
Year: 2019
Subjects: subject: Demand and Price Analysis
subject: margin contracting
subject: formula pricing
subject: ethanol
subject: Monte Carlo simulation

description: Manufacturers of ethanol face considerable pricing risk from both an input (corn and natural gas) and output (ethanol, distillers dried grains, and corn oil) in addition to the fluctuating value of the ethanol renewable identification numbers (D6 RINs) attached to each gallon of ethanol produced. Additionally, ethanol plants face technical risks related to their physical plant extraction rates for ethanol, DDGs, and corn oil along with their efficiency in using natural gas (or an alternative heat source). The purpose of this study is to examine the risk characteristics of a fixed margin, formula pricing contract applied to the ethanol industry using Monte Carlo simulation and sensitivity analysis. The margin model is set up for a typical South Dakota dry mill plant that has corn oil extraction capabilities in addition to dry DDGs. The results indicate that there are benefits to both the buyer and seller from utilizing the proposed contract. Under the average pricing scenario, the buyer can expect to pay a marginally lower mean ethanol price with a slightly lower probability of paying a high price and a slightly higher probability of paying a low price when compared to paying the spot ethanol price at delivery. At the mean, the buyer could feasibly save approximately 30 cents per gallon (on an average $1.43 delivery price) through perfect timing on setting the price components. For the seller, the gain from the contract is primarily due to a substantial reduction in margin volatility and better 5% value-atrisk (VaR) values when compared to the delivery benchmark under all three buyer pricing scenarios. The ethanol seller can also achieve gains in margin through increased ethanol extraction efficiency with an approximate 2% gain in margin for each 1% increase in the extraction rate.
Fractional Chiral Hinge Insulator
Creators: name: Hackenbroich, Anna
name: Hudomal, Ana
name: Schuch, Norbert
name: Bernevig, B. Andrei
name: Regnault, Nicolas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose and study a wave function describing an interacting three-dimensional fractional chiral hinge insulator (FCHI) constructed by Gutzwiller projection of two non-interacting second order topological insulators with chiral hinge modes at half filling. We use large-scale variational Monte Carlo computations to characterize the model states via the entanglement entropy and charge-spin-fluctuations. We show that the FCHI possesses fractional chiral hinge modes characterized by a central charge $c=1$ and Luttinger parameter $K=1/2$, like the edge modes of a Laughlin $1/2$ state. By changing the boundary conditions for the underlying fermions, we investigate the topological degeneracy of the FCHI. Within the range of the numerically accessible system sizes, we observe a non-trivial topological degeneracy. A more numerically pristine characterization of the bulk topology is provided by the topological entanglement entropy (TEE) correction to the area law. While our computations indicate a vanishing bulk TEE, we show that the gapped surfaces host a two-dimensional topological order with a TEE per surface compatible with half that of a Laughlin $1/2$ state, a value that cannot be obtained from topological quantum field theory.
description: 7+21 pages, 3+14 figures
Design and Modeling of Micromechanical GaAs based Hot Plate for Gas Sensors
Creators: name: Jakovenko, J.
name: Husak, M.
name: Lalinskytfh, T.
name: Drzik, M.
name: Vanko, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: For modern Gas sensors, high sensitivity and low power are expected. This paper discusses design, simulation and fabrication of new Micromachined Thermal Converters (MTCs) based on GaAs developed for Gas sensors. Metal oxide gas sensors generally work in high temperature mode that is required for chemical reactions to be performed between molecules of the specified gas and the surface of sensing material. There is a low power consumption required to obtain the operation temperatures in the range of 200 to 500 oC. High thermal isolation of these devices solves consumption problem and can be made by designing of free standing micromechanical hot plates. Mechanical stability and a fast thermal response are especially significant parameters that can not be neglected. These characteristics can be achieved with new concept of GaAs thermal converter.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/EDA-Publishing)
GASP XXIX -- Unwinding the arms of spiral galaxies via ram-pressure stripping
Creators: name: Bellhouse, Callum
name: McGee, Sean L.
name: Smith, Rory
name: Poggianti, Bianca M.
name: Jaffé, Yara L.
name: Kraljic, Katarina
name: Franchetto, Andrea
name: Fritz, Jacopo
name: Vulcani, Benedetta
name: Tonnesen, Stephanie
name: Roediger, Elke
name: Moretti, Alessia
name: Gullieuszik, Marco
name: Shin, Jihye
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first study of the effect of ram-pressure "unwinding" the spiral arms of cluster galaxies. We study 11 ram-pressure stripped galaxies from GASP (GAs Stripping Phenomena in galaxies) in which, in addition to more commonly observed "jellyfish" features, dislodged material also appears to retain the original structure of the spiral arms. Gravitational influence from neighbours is ruled out and we compare the sample with a control group of undisturbed spiral galaxies and simulated stripped galaxies. We first confirm the unwinding nature, finding the spiral arm pitch angle increases radially in 10 stripped galaxies and also simulated face-on and edge-on stripped galaxies. We find only younger stars in the unwound component, while older stars in the disc remain undisturbed. We compare the morphology and kinematics with simulated ram-pressure stripping galaxies, taking into account the estimated inclination with respect to the intracluster medium and find that in edge-on stripping, unwinding can occur due to differential ram-pressure caused by the disc rotation, causing stripped material to slow and "pile-up". In face-on cases, gas removed from the outer edges falls to higher orbits, appearing to "unwind". The pattern is fairly short-lived (<0.5Gyr) in the stripping process, occurring during first infall and eventually washed out by the ICM wind into the tail of the jellyfish galaxy. By comparing simulations with the observed sample, we find a combination of face-on and edge-on "unwinding" effects are likely to be occurring in our galaxies as they experience stripping with different inclinations with respect to the ICM.
description: Accepted for publication in MNRAS, 30 pages, 17 figures
ENSO's effect on the wind energy production of South Dakota
Creators: name: Harper, Bret
name: Harriss, Robert
name: Gochis, David
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2005
Subjects: Wind turbines

An aging infrastructure, environmental concerns, and growing demand threaten to undermine the reliability and long-term sustainability of the current fossil fuel electricity supply and transmission system. It is widely agreed that renewable energy sources will become increasingly important in the evolution to a next-generation electric grid. In this study we investigated the use and value of climate information in determining the location and performance of wind power turbines in the Northern Great Plains of the United States. Fifty years of hourly wind speed data were used to evaluate the possible influence of seasonal and interannual climate variability on wind power production at four locations in South Dakota. The El Nino Southern Oscillation (ENSO) is a documented source of climate variability in the Northern Great Plains. Our results documented a dominant El Nino/La Nina influence on the probability of lull in wind speeds, with the stronger influence in the eastern half of the state. Information on wind speed lulls is important to the wind energy industry because these are periods when no energy is being produced All of the locations also showed a slight decrease in power production potential during El Nino events. Our preliminary results confirmed that information on climate variability and change can be of significant use and value to future wind power planning, siting, and performance.
NGC 2403 XMM4: evidence for a super-Eddington neutron star with a possible transient pulsation
Creators: name: Luangtip, W.
name: Roberts, T. P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a study of the X-ray source NGC 2403 XMM4 (4XMM J073702.2+653934) based on 20 years of archival observations with XMM-Newton, Chandra, Swift and NuSTAR. Although it has previously been classified as an ultraluminous X-ray source (ULX), we show that its luminosity rarely, if ever, passes the $10^{39} \rm ~erg~s^{-1}$ threshold luminosity for a ULX. It does, however, behave very similarly to ULXs, with its 0.3-10 keV spectra well described by two thermal components, the softer of which behaves consistently with the expectations for an advection-dominated disc ($L\propto T^{1.49\pm0.85}$), and we find tentative evidence for an extra spectral component above 10 keV. We also find moderately significant evidence for an absorption feature in one spectrum that could originate in an outflowing wind, although a cyclotron resonance scattering feature is also a possibility. Most intriguingly, we find a possible transient pulsation at $\sim 3.32$ Hz in a short segment of one observation using an accelerated pulsation search. This evidence suggests that NGC 2403 XMM4 is displaying many of the hallmarks of super-Eddington accretion at luminosities between $5 - 10 \times 10^{38} \rm ~erg~s^{-1}$ which, when considered alongside the putative pulsation, points to the presence of a neutron star as the accreting object this system.
description: 15 pages, 9 figures, accepted for publication in MNRAS
A DSA-like digital signature protocol
Creators: name: Zahhafi, Leila
name: Khadir, Omar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: 94A60, 11T71

description: In this paper we propose a new digital signature protocol inspired by the DSA algorithm. The security and the complexity are analyzed. Our method constitutes an alternative if the classical scheme DSA is broken.
Heinz, Daniel (Hg.): Freikirchen und Juden im "Dritten Reich"
Creators: name: Voigt, Karl Heinz
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 61 Nr. 4 (2012): Ökumenische Rundschau, Band 61, Heft 4
Determining sub-parsec supermassive black hole binary orbits with infrared interferometry
Creators: name: Dexter, J.
name: Lutz, D.
name: Shimizu, T. T.
name: Shangguan, J.
name: Davies, R. I.
name: de Zeeuw, P. T.
name: Sturm, E.
name: Eisenhauer, F.
name: Förster-Schreiber, N. M.
name: Gao, F.
name: Genzel, R.
name: Gillessen, S.
name: Pfuhl, O.
name: Tacconi, L. J.
name: Widmann, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radial velocity monitoring has revealed the presence of moving broad emission lines in some quasars, potentially indicating the presence of a sub-parsec binary system. Phase-referenced, near-infrared interferometric observations could map out the binary orbit by measuring the photocenter difference between a broad emission line and the hot dust continuum. We show that astrometric data over several years may be able to detect proper motions and accelerations, confirming the presence of a binary and constraining system parameters. The brightness, redshifts, and astrometric sizes of current candidates are well matched to the capabilities of the upgraded VLTI/GRAVITY+ instrument, and we identify a first sample of 10 possible candidates. The astrometric signature depends on the morphology and evolution of hot dust emission in supermassive black hole binary systems. Measurements of the photocenter offset may reveal binary motion whether the hot dust emission region is fixed to the inner edge of the circumbinary disk, or moves in response to the changing irradiation pattern from an accreting secondary black hole.
description: 17 pages, 6 figures, ApJ, in press
A probe to study the microwave surface resistance of crystals, of the high temperature superconductor YBCO
Creators: name: Gheinani, Ahmad Reza Hosseini
Publisher: name: University of British Columbia
Year: 2009

description: A superconducting cavity resonator has been developed for the systematic study of the microwave surface resistance of high purity (twinned and detwinned), zinc and nickel doped YBaiCu3O7-8 single crystals at 22.7 GHz. We have successfully tested the resonator on three pure and two 0.15% zinc doped samples; one of the measurement was on a pure crystal grown using the newly developed barium zirconate crucibles. Measurements in the geometry Hrf//c show a crossover in the low temperature behavior of samples as the purity is varied; in one of the doped samples we see a crossover to a gapless regime with a residual conductivity that is close to o00, the predicted zero temperature limit for a d-wave superconductor in 2-D. Measurements with Hrf parallel to the ab-plane have allowed us to measure the ab-anisotropy of a 0.15% zinc doped crystal, which we find to be qualitatively similar to the ab-anisotropy of the pure system [33]. Finally, the measurements are compared in the two geometries.
Letter from J. Corbet at The Canadian Bank of Commerce to "Sir" [James Goldie], August 13, 1914
Creators: name: Canadian Bank Of Commerce
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to "Sir" [James Goldie] from J. Corbet at The Canadian Bank of Commerce, dated August 13, 1914, advising James Goldie that the account is overdrawn again.
Characterizing multipath sources at seismic frequencies: A case study for the Parkfield GPS Array
Creators: name: Hernandez, Michael
name: Larson, Kristine
name: Eriksson, Susan
name: Stolte, Christopher
name: Adame, Erick
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2005
Subjects: Automated technique

Multipath, the skewed positions due to signal deflections from surrounding objects, remains one of the limiting sources of error in position measurements determined by 1-Hertz Global Positioning System (GPS) data. There is currently no standard automated technique to remove multipath consequently affecting the accuracy of any geodetic or seismological application of GPS data. For GPS data to provide sub-centimeter position accuracy, multipath error must first be removed. Characterizing multipath entails identifying sources that contribute to relevant position errors for certain satellite-receiver pairs. In this study, signal-to-noise ratios (SNR) from 1-hz receivers were used to make this characterization possible. SNR recorded by the receivers are sensitive to changes in the time-varying GPS environments and are a conduit for revealing multipath. The analysis of SNR power spectra identified receiver-recording characteristics indicative of specular multipath. These included large amplitudes and high frequency or long period interference. With knowledge of the period of observed multipath, a forward model helped in predicting the distance from the theoretical horizontal reflector to the antenna. This was possible since the distance from a horizontal reflector to antenna determines, in part, the phase and frequency of multipath. Preliminary results have identified time frames and specific satellite-receiver pairs in which significant multipath occurs. This, coupled with actual photos of receiver environments, aids in predicting when, where, and why significant multipath will appear. Knowledge gained from multipath characterization can be applied toward the prevention or removal of multipath at other GPS sites with the Parkfield array as a representative model.