cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fully Unintegrated Parton Correlation Functions and Factorization in Lowest Order Hard Scattering
Creators: name: Collins, J. C.
name: Rogers, T. C.
name: Staśto, A. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the need to correct the potentially large kinematic errors in approximations used in the standard formulation of perturbative QCD, we reformulate deeply inelastic lepton-proton scattering in terms of gauge invariant, universal parton correlation functions which depend on all components of parton four-momentum. Currently, different hard QCD processes are described by very different perturbative formalisms, each relying on its own set of kinematical approximations. In this paper we show how to set up formalism that avoids approximations on final-state momenta, and thus has a very general domain of applicability. The use of exact kinematics introduces a number of significant conceptual shifts already at leading order, and tightly constrains the formalism. We show how to define parton correlation functions that generalize the concepts of parton density, fragmentation function, and soft factor. After setting up a general subtraction formalism, we obtain a factorization theorem. To avoid complications with Ward identities the full derivation is restricted to abelian gauge theories; even so the resulting structure is highly suggestive of a similar treatment for non-abelian gauge theories.
description: 44 pages, 69 figures typos fixed, clarifications and second appendix added
Additional file 3 of Burden of illness in US hospitals due to carbapenem-resistant Gram-negative urinary tract infections in patients with or without bacteraemia
Creators: name: Shields, Ryan K.
name: Zhou, Yun
name: Kanakamedala, Hemanth
name: Cai, Bin
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 3: Supplementary Table 3. LOS charges according to presence of bacteraemia and carbapenem resistance.
Modelling rapid TeV variability of PKS 2155-304
Creators: name: Katarzynski, K.
name: Lenain, J-P.
name: Zech, A.
name: Boisson, C.
name: Sol, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present theoretical modelling for the very rapid TeV variability of PKS 2155--304 observed recently by the H.E.S.S. experiment. To explain the light-curve, where at least five flaring events were well observed, we assume five independent components of a jet that are characterized by slightly different physical parameters. An additional, significantly larger component is used to explain the emission of the source at long time scales. This component dominates the emission in the X-ray range, whereas the other components are dominant in the TeV range. The model used for our simulation describes precisely the evolution of the particle energy spectrum inside each component and takes into account light travel time effects. We show that a relatively simple synchrotron self-Compton scenario may explain this very rapid variability. Moreover, we find that absorption of the TeV emission inside the components due to the pair creation process is negligible.
description: 6 pages, 1 figure, Accepted for publication in MNRAS the Main Journal
A connection with skew symmetric torsion and Kähler curvature tensor on quasi-Kähler manifolds with Norden metric
Creators: name: Mekerov, Dimitar
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C15, 53C50

description: There is considered a connection with skew symmetric torsion on a quasi-Kähler manifold with Norden metric. Some necessary and sufficient conditions are derived for the corresponding curvature tensor to be Kählerian. In the case when this tensor is Kählerian, some relations are obtained between its scalar curvature and the scalar curvature of other curvature tensors. Conditions are given for the considered manifolds to be isotropic-Kähler.
Spatial and temporal distribution of a 1-MeV proton microbeam guided through a poly(tetrafluoroethylene) macrocapillary
Creators: name: Nagy, G. U. L.
name: Gaál, Z. T.
name: Rajta, I.
name: Tőkési, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present computer simulations about the spatial and temporal evolution of a 1-MeV proton microbeam transmitted through an insulating macrocapillary with the length of 45 mm and with the inner diameter of 800 μm. The axis of the capillary was tilted to 1° relative to the axis of the incident beam, which ensured geometrical nontransparency. The simulation is based on the combination of stochastic (Monte Carlo) and deterministic methods. It involves (1) random sampling of the initial conditions, according to distributions generated by the widely used and freely available computer software packages, SRIM and WINTRAX, (2) the numerical solution of the governing equations for following the classical trajectory of the projectiles, and (3) the description of the field-driven charge migration on the surface and in the bulk of the insulator material. We found that our simulation describes reasonably all of our previous experimental observations, indicating the functionality and reliability of the applied model. In addition, we found that at different phases of the beam transmission, different atomic processes result in the evolution of the beam distribution. First, in a scattering phase, the multiple small angle atomic scattering dominates in the beam transmission, resulting in an outgoing beam into a wide angular range and in a wide energy window. Later, in a mixed phase, scattering and guiding happens simultaneously, with a continuously increasing contribution of guiding. Finally, in the phase of the stabilized, guided transmission, a quadrupolelike focusing effect is observed, i.e., the transmitted beam is concentrated into a small spot, and the transmitted protons keep their initial kinetic energy.
Unraveling unparticles through violation of atomic parity and rare beauty
Creators: name: Bhattacharyya, Gautam
name: Choudhury, Debajyoti
name: Ghosh, Dilip Kumar
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We put constraints on unparticle physics, specifically on the scale $Λ_\U$ and the scale dimension $d_\U$ of unparticle operators, using (i) measurements of atomic parity violation as well as (ii) branching ratio and CP asymmetry measurements in some rare non-leptonic B decay channels.
description: 11 pages, 3 figures; v2: minor typos settled, to appear in Phys Lett B; v3: minor changes in discussions following Eq.(8), matches PLB version
Unconventional quantum phases of lattice bosonic mixtures
Creators: name: Buonsante, P.
name: Giampaolo, S. M.
name: Illuminati, F.
name: Penna, V.
name: Vezzani, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Lattice (hep-lat)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider strongly interacting boson-boson mixtures on one-dimensional lattices and, by adopting a qualitative mean-field approach, investigate their quantum phases as the interspecies repulsion is increased. In particular, we analyze the low-energy "quantum emulsion" metastable states occurring at large values of the interspecies interaction, which are expected to prevent the system from reaching its true ground state. We argue a significant decrease in the visibility of the time-of-flight images in the case of these spontaneously disordered states.
description: 10 pages, 2 figures - to appear in the topical issue on "Novel Quantum Phases and Mesoscopic Physics in Quantum Gases" of the European Physical Journal B (2009)
Cell nuclei classification in histopathological images using hybrid OLConvNet
Creators: name: Tripathi, Suvidha
name: Singh, Satish Kumar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Computer-aided histopathological image analysis for cancer detection is a major research challenge in the medical domain. Automatic detection and classification of nuclei for cancer diagnosis impose a lot of challenges in developing state of the art algorithms due to the heterogeneity of cell nuclei and data set variability. Recently, a multitude of classification algorithms has used complex deep learning models for their dataset. However, most of these methods are rigid and their architectural arrangement suffers from inflexibility and non-interpretability. In this research article, we have proposed a hybrid and flexible deep learning architecture OLConvNet that integrates the interpretability of traditional object-level features and generalization of deep learning features by using a shallower Convolutional Neural Network (CNN) named as $CNN_{3L}$. $CNN_{3L}$ reduces the training time by training fewer parameters and hence eliminating space constraints imposed by deeper algorithms. We used F1-score and multiclass Area Under the Curve (AUC) performance parameters to compare the results. To further strengthen the viability of our architectural approach, we tested our proposed methodology with state of the art deep learning architectures AlexNet, VGG16, VGG19, ResNet50, InceptionV3, and DenseNet121 as backbone networks. After a comprehensive analysis of classification results from all four architectures, we observed that our proposed model works well and perform better than contemporary complex algorithms.
Mapping oil palm density at country scale: An active learning approach
Creators: name: Rodríguez, Andrés C.
name: D'Aronco, Stefano
name: Schindler, Konrad
name: Wegner, Jan D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Accurate mapping of oil palm is important for understanding its past and future impact on the environment. We propose to map and count oil palms by estimating tree densities per pixel for large-scale analysis. This allows for fine-grained analysis, for example regarding different planting patterns. To that end, we propose a new, active deep learning method to estimate oil palm density at large scale from Sentinel-2 satellite images, and apply it to generate complete maps for Malaysia and Indonesia. What makes the regression of oil palm density challenging is the need for representative reference data that covers all relevant geographical conditions across a large territory. Specifically for density estimation, generating reference data involves counting individual trees. To keep the associated labelling effort low we propose an active learning (AL) approach that automatically chooses the most relevant samples to be labelled. Our method relies on estimates of the epistemic model uncertainty and of the diversity among samples, making it possible to retrieve an entire batch of relevant samples in a single iteration. Moreover, our algorithm has linear computational complexity and is easily parallelisable to cover large areas. We use our method to compute the first oil palm density map with $10\,$m Ground Sampling Distance (GSD) , for all of Indonesia and Malaysia and for two different years, 2017 and 2019. The maps have a mean absolute error of $\pm$7.3 trees/$ha$, estimated from an independent validation set. We also analyse density variations between different states within a country and compare them to official estimates. According to our estimates there are, in total, $>1.2$ billion oil palms in Indonesia covering $>$15 million $ha$, and $>0.5$ billion oil palms in Malaysia covering $>6$ million $ha$.
Redox hysteresis of super-Earth exoplanets from magma ocean circulation
Creators: name: Lichtenberg, Tim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Internal redox reactions may irreversibly alter the mantle composition and volatile inventory of terrestrial and super-Earth exoplanets and affect the prospects for atmospheric observations. The global efficacy of these mechanisms, however, hinges on the transfer of reduced iron from the molten silicate mantle to the metal core. Scaling analysis indicates that turbulent diffusion in the internal magma oceans of sub-Neptunes can kinetically entrain liquid iron droplets and quench core formation. This suggests that the chemical equilibration between core, mantle, and atmosphere may be energetically limited by convective overturn in the magma flow. Hence, molten super-Earths possibly retain a compositional memory of their accretion path. Redox control by magma ocean circulation is positively correlated with planetary heat flow, internal gravity, and planet size. The presence and speciation of remanent atmospheres, surface mineralogy, and core mass fraction of atmosphere-stripped exoplanets may thus constrain magma ocean dynamics.
description: Accepted for publication in ApJL; 7 pages, 2 figures; summaries available at http://bit.ly/Lichtenberg21blog (blog) and http://bit.ly/Lichtenberg21ApJLvideo (video)
Additional file 1 of Burden of illness in US hospitals due to carbapenem-resistant Gram-negative urinary tract infections in patients with or without bacteraemia
Creators: name: Shields, Ryan K.
name: Zhou, Yun
name: Kanakamedala, Hemanth
name: Cai, Bin
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 1: Supplementary Table 1. Time to death, Day 14 and Day 30 mortality, and mortality by pathogen.
Comparative study of screened inter-layer interactions in the Coulomb drag effect in bilayer electron systems
Creators: name: Asgari, R.
name: Tanatar, B.
name: Davoudi, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Coulomb drag experiments in which the inter-layer resistivity is measured are important as they provide information on the Coulomb interactions in bilayer systems. When the layer densities are low correlation effects become significant to account for the quantitative description of experimental results. We investigate systematically various models of effective inter-layer interactions in a bilayer system and compare our results with recent experiments. In the low density regime, the correlation effects are included via the intra- and inter-layer local-field corrections. We employ several theoretical approaches to construct static local-field corrections. Our comparative study demonstrates the importance of including the correlation effects accurately in the calculation of drag resistivity. Recent experiments performed at low layer densities are adequately described by effective inter-layer interactions incorporating static correlations.
description: Final Version. To appear in Phys. Rev. B
Cellulose nanocrystals mimicking micron sized fibers to assess the deposition of latex particles on cotton
Creators: name: Oikonomou, Evdokia K.
name: Golemanov, Konstantin
name: Dufils, Pierre-Emmanuel
name: Wilson, James
name: Ahuja, Ritu
name: Heux, Laurent
name: Berret, Jean-François
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the interactions of cationic latex particles synthesized by RAFT/MADIX-mediated emulsion polymerization with anionic cellulose nanocrystals (CNCs) and cotton fabrics. Latexes in the size range 200-300 nm with poly(butyl acrylate) or poly(2-ethylhexyl acrylate) hydropho-bic cores and hydrophilic shell are synthesized. We show that the latex/CNC interaction is me-diated by electrostatics, the interaction being the strongest with the most charged particles. The adsorption process is efficient and does not require any functionalization step for either cellulose or latex. A major result is the observation by cryogenic transmission electron micros-copy of latexes coated with entangled arrays of CNCs, and for the softer particles a notable deformation of their structure into faceted polyhedra. By labeling the latexes with hydrophobic carbocyanine dyes, their deposition on woven cotton fabrics is studied in situ and quantified by fluorescence microscopy. As with the CNCs, the highest deposition on cotton in the wet and dried states is achieved with the most charged latexes. This demonstrates that CNCs can serve as models to adjust the interactions of latex particles with cotton, and thus optimize manufac-turing processes for the development of advanced textiles.
description: 20 pages 6 figures, to be published in ACS Applied Polymer Materials
Additional file 2 of Burden of illness in US hospitals due to carbapenem-resistant Gram-negative urinary tract infections in patients with or without bacteraemia
Creators: name: Shields, Ryan K.
name: Zhou, Yun
name: Kanakamedala, Hemanth
name: Cai, Bin
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 2: Supplementary Table 2. Mortality rate by pathogen in overall UTI group, and with or without bacteraemia.
Free-Floating HI Clouds in the M 81 Group
Creators: name: Brinks, Elias
name: Walter, Fabian
name: Skillman, Evan D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent VLA observations pointed at dwarf spheroidal (dSph) galaxies in the M 81 group reveal a hitherto hidden population of extremely low mass (~1e5 Msol) HI clouds with no obvious optical counterparts. We have searched 10 fields in the M81 group totalling 2.2 square degree, both targeting known dwarf spheroidal galaxies and blank fields around the central triplet. Our observations show that the new population of low-mass HI clouds appears to be confined to a region toward the South-East of the central triplet (at distances of ~100 kpc from M 81). Possible explanations for these free-floating HI clouds are that they are related to the dSphs found to the South-East of M 81, that they belong to the galaxies of the M 81 triplet (equivalent to HVCs), that they are of primordial nature and provide fresh, unenriched material falling into the M 81 group, or that they are tidal debris from the 3-body interaction involving M 81-M 82-NGC 3077. Based on circumstantial evidence, we currently favour the latter explanation.
description: To appear in the Proceedings of IAU Symp. 244 on "Dark Galaxies and Lost Baryons", eds. J. I. Davies & M. J. Disney
Regulation of organic anion transporters
Creators: name: Zhang, Jinghui
Publisher: name: No Publisher Supplied
Year: 2021

description: The members of the organic anion transporter (OAT) family are mainly expressed in kidney, liver, placenta, intestine, and brain. These transporters are key players for the translocation of various substances into and out of cells, such as clinical drugs, pesticides, signaling molecules, heavy metal conjugates, components of phytomedicines, and toxins, thus critical for maintaining systemic homeostasis and influencing the pharmacological effects and toxicity of the drugs. Given the crucial roles of OATs in physiological and pathological processes and in determining the therapeutical efficacy and toxicity of many clinical drugs, elucidating the cellular and molecular mechanisms underlying OAT regulation is of great significance. The regulations of OATs can take place at multiple levels, such as at the levels of transcription, post-transcription, translation, and post-translation, and numerous signaling pathways are involved in these regulations. My thesis work focuses on the investigation of post-translational modifications (PTMs) of OATs as well as the related signaling pathways in vitro and in vivo. The first chapter gives a general overview of OATs. Chapters 2-6 describe my investigations on OAT mediated drug-drug interaction (DDI) and the cellular and molecular mechanisms underlying the regulation of OATs by ubiquitination, phosphorylation, and SUMOylation as well as related signaling molecules, such as protein kinases and deubiquitinating enzymes. Lastly, I will discuss about the future direction in chapter 7.
Squeezing anyons for braiding on small lattices
Creators: name: Srivatsa, N. S.
name: Li, Xikun
name: Nielsen, Anne E. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Adiabatically exchanging anyons gives rise to topologically protected operations on the quantum state of the system, but the desired result is only achieved if the anyons are well separated, which requires a sufficiently large area. Being able to reduce the area needed for the exchange, however, would have several advantages, such as enabling a larger number of operations per area and allowing anyon exchange to be studied in smaller systems that are easier to handle. Here, we use optimization techniques to squeeze the charge distribution of Abelian anyons in lattice fractional quantum Hall models, and we show that the squeezed anyons can be exchanged within a smaller area with a close to ideal outcome. We first use a toy model consisting of a modified Laughlin trial state to show that one can shape the anyons without altering the exchange statistics under certain conditions. We then squeeze and braid anyons in the Kapit-Mueller model and an interacting Hofstadter model by adding suitable potentials. We consider a fixed system size, for which the charge distributions of the normal anyons overlap, and we find that the outcome of the exchange process is closer to the ideal value for the squeezed anyons. The time needed for the exchange is also important, and for a particular example we find that the duration needed for the process to be close to the adiabatic limit is about five times longer for the squeezed anyons when the path length is the same. Finally we show that the exchange outcome is robust with respect to small modifications of the potential away from the optimized value.
description: 9 pages, 4 figures, 1 movie
Financial feasibility analysis of cost and traffic volume: Case study on toll road investment project
Creators: name: Mulyono Wraharjo
name: Susanti, Betty
name: Kadarsa, Edi
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2022
Subjects: Cost increment
Traffic volume
Financial feasibility
Toll road investment

description: Engineering and Applied Science Research, 49, 3, 308-315
A Non-Intrusive Method for Temperature Measurements in Flames Produced by Milligram-Sized Solid Samples
Creators: name: Frances, Colleen
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Engineering
subject: Material Flammability
subject: Plastics

description: Fires are responsible for the loss of thousands of lives and billions of dollars in property damage each year in the United States.  Flame retardants can assist in the prevention of fires through mechanisms which either prevent or greatly inhibit flame spread and development.  In this study samples of both brominated and non-brominated polystyrene were tested in the Milligram-scale Flaming Calorimeter and images captured with two DSL-R cameras were analyzed to determine flame temperatures through use of a non-intrusive method.  Based on the flame temperature measurement results, a better understanding of the gas phase mechanisms of flame retardants may result, as temperature is an important diagnostic in the study of fire and combustion.  Measurements taken at 70% of the total flame height resulted in average maximum temperatures of about 1656 K for polystyrene and about 1614 K for brominated polystyrene, suggesting that the polymer flame retardant may reduce flame temperatures.
Design and development of natural-draft Ethanol/LPG burner for heavy-duty cooking
Creators: name: Ativis Sirivichaikum
name: Usa Makmool Grare
name: Sumrerng Jugjai
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2022
Subjects: Heavy duty burner
Ethanol burner
Fuel-flexible
Porous medium burner
Natural-draft burner

description: Engineering and Applied Science Research, 49, 3, 316-326
Sequential convolutional network for behavioral pattern extraction in gait recognition
Creators: name: Ding, Xinnan
name: Wang, Kejun
name: Wang, Chenhui
name: Lan, Tianyi
name: Liu, Liangliang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: As a unique and promising biometric, video-based gait recognition has broad applications. The key step of this methodology is to learn the walking pattern of individuals, which, however, often suffers challenges to extract the behavioral feature from a sequence directly. Most existing methods just focus on either the appearance or the motion pattern. To overcome these limitations, we propose a sequential convolutional network (SCN) from a novel perspective, where spatiotemporal features can be learned by a basic convolutional backbone. In SCN, behavioral information extractors (BIE) are constructed to comprehend intermediate feature maps in time series through motion templates where the relationship between frames can be analyzed, thereby distilling the information of the walking pattern. Furthermore, a multi-frame aggregator in SCN performs feature integration on a sequence whose length is uncertain, via a mobile 3D convolutional layer. To demonstrate the effectiveness, experiments have been conducted on two popular public benchmarks, CASIA-B and OU-MVLP, and our approach is demonstrated superior performance, comparing with the state-of-art methods.
Decoherence of floating qubits due to capacitive coupling
Creators: name: Steffen, Matthias
name: Brito, Frederico
name: DiVincenzo, David
name: Kumar, Shwetank
name: Ketchen, Mark
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: It has often been assumed that electrically floating qubits, such as flux qubits, are immune to decoherence due to capacitive coupling. We show that capacitive coupling to bias leads can be a dominant source of dissipation, and therefore of decoherence, for such floating qubits. Classical electrostatic arguments are sufficient to get a good estimate of this source of relaxation for standard superconducting qubit designs. We show that relaxation times can be improved by designing floating qubits so they couple symmetrically to the bias leads. Observed coherence times of flux qubits with varying degrees of symmetry qualitatively support our results.
description: V1: 4 pages, 3 figures. V2: 5 pages, 3 figures. Published version
HOT SURFACE IGNITION OF R-32 AND R-410A REFRIGERANT MIXTURES WITH  LUBRICATING OIL
Creators: name: Boussouf, Adam
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Engineering

description: This study examines the flammability of refrigerant and oil mixtures. The flammability risk associated with refrigerants is an important property to consider prior to their use in residential and commercial HVAC systems. This research was conducted to compare the ignition characteristics of R-32 with R-410A, and the effects of lubricating oil. Unpiloted hot-plate ignition tests were carried out to determine ignition temperatures and quantify the flammability risks associated with these refrigerants. Additionally, computational fluid dynamic (CFD) methods were used to model the vapor temperatures and concentrations of an R-32 jet impinging on a hot-surface. The laboratory results indicate that R-32 will ignite upon contact with a 764oC surface. This is higher than the reported 648oC autoignition temperature of R-32. R-410A was found to ignite upon contact with a 790oC surface. Results with mixtures of refrigerant and polyolester (POE) oil were found to ignite at temperatures close to that of oil alone, 645oC. CFD predictions show that ignition is likely to occur along the edges of the apparatus, where the fuel vapor concentrations and temperatures are within the limits of combustion.
Water vapor diffusion: A control factor in the selection of environmentally friendly waste sites in Mosul city, Iraq
Creators: name: Nabel K. Asmel
name: Abideen A. Ganiyu
name: Harith E. Ali
name: AlShaima Abdullah Al Saadi
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2022
Subjects: Diffusion
Porous media
Limestone
Gypsum
Plastic soil
Non-plastic soil

description: Engineering and Applied Science Research, 49, 3, 327-339
SALT observations of the supernova remnant MCSNR J0127-7332 and its associated Be X-ray binary SXP 1062 in the SMC
Creators: name: Gvaramadze, V. V.
name: Kniazev, A. Y.
name: Gallagher, J. S.
name: Oskinova, L. M.
name: Chu, Y. -H.
name: Gruendl, R. A.
name: Katkov, I. Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the results of optical spectroscopy of the Small Magellanic Cloud supernova remnant (SNR) MCSNR J0127-7332 and the mass donor Be star, 2dFS 3831, in its associated high-mass X-ray binary SXP 1062 carried out with the Southern African Large Telescope (SALT). Using high-resolution long-slit spectra, we measured the expansion velocity of the SNR shell of \approx 140 km/s, indicating that MCSNR J0127-7332 is in the radiative phase. We found that the observed line ratios in the SNR spectrum can be understood if the local interstellar medium is ionized by 2dFS 3831 and/or OB stars around the SNR. We propose that MCSNR J0127-7332 is the result of supernova explosion within a bubble produced by the stellar wind of the supernova progenitor and that the bubble was surrounded by a massive shell at the moment of supernova explosion. We estimated the age of MCSNR J0127-7332 to be \la 10 000 yr. We found that the spectrum of 2dFS 3831 changes with orbital phase. Namely, the equivalent width of the Halpha emission line decreased by \approx 40 per cent in \approx 130 d after periastron passage of the neutron star and then almost returned to its original value in the next \approx 100 d. Also, the spectrum of 2dFS 3831 obtained closest to the periastron epoch (about three weeks after the periastron) shows a noticeable emission line of He II λ4686, which disappeared in the next about two weeks. We interpret these changes as a result of the temporary perturbation and heating of the disk as the neutron star passes through it.
description: 12 pages, 8 figures, accepted for publication in MNRAS
Materia e prassi comprendente: percorsi
Creators: name: Cambria, Florinda
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Marx; materia; prassi

description: Le pagine che seguono riproducono un lavoro di annotazione e rielaborazione condotto su estratti delle Tesi su Feuerbach di Marx e della Settima riscrittura, apparsa su «Nóema» 5-1 (2014). Viene tracciata una sorta di mappa il cui intento principale è di rendere esplicite, mostrandole graficamente, le decisioni silenziose che hanno guidato la riscrittura.
description: Nóema, No 6-1 (2015): La materia
Junior Management Science, Bd. 4 Nr. 2 (2019)
Creators: name: Junior Management Science
Publisher: name: Junior Management Science
Year: 2019

description: R&D accounting discretion as an income smoothing tool: An empirical analysis of German listed companies...151-172
Implementation of strategic change by franchisees: A sensemaking perspective...173-194
The Influence of Cryptocurrencies on Enterprise Risk Management – an Empirical Evidence by the Example of Bitcoin...195-227
Does Subordinated Debt Discipline Banks? Empirical Evidence of Market Discipline in Europe...228-240
The Impact of the Organic Label Halo Effect on Consumers’ Quality Perceptions, Value-in-Use and Well-Being...241-264
Charakteristika vs. Carry - Outperformance in Devisenmärkten...265-304
Reconfigurable and approximate computing for video coding
Creators: name: Palumbo, Francesca
name: Sau, Carlo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: The Chapter begins with a discussion of the constraints and needs of video coding systems. The lack in flexibility of traditional monolithic codec specifications, not suitable to model commonalities among codecs and foster reusability among successive codec generations/updates, was the main trigger for the development of a new standard initiative within the ISO/IEC MPEG committee, called reconfigurable video coding (RVC). The MPEG-RVC framework exploits the dataflow nature behind video coding to foster flexible and reconfigurable codec design, as well as to support dynamic reconfiguration. The Chapter goes on to consider that the inherent resiliency of various functional blocks (like motion estimation in the high-efficiency video coding, HEVC) and the varying levels of user perception make video coding suitable to apply approximate computing techniques. Approximate computing, if properly supported at design time, allows achieving run-time trade-offs, representing a new direction in hardware-software codesign research. The main assumption behind approximate computing, exploited within video coding, is that the degree of accuracy (in this case during codec execution) is not required to be the same all the time. The final part of the Chapter attempts to put together the concepts addressed and remarks on which are, in the authors' opinion, some interesting research directions.
description: Chapater of the VLSI Architectures for Future Video Coding, IET Digital Library, 2019 (https://digital-library.theiet.org/content/books/10.1049/pbcs053e_ch9)
Measurements of CKM Angle Beta from BABAR
Creators: name: Ulmer, Keith A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present recent results of hadronic B meson decays related to the CKM angle beta. The data used were collected by the BABAR detector at the pepII asymmetric-energy e+e- collider operating at the Upsilon(4S) resonance located at the Stanford Linear Accelerator Center.
description: 6 pages, contributed to the Proceedings of the Lake Louise Winter Institute 2007
Disability Law Stories: A Disability Studies and Critical Race (Dis/Crit) Legal Analysis
Creators: name: Perez, Katherine Ashley
Publisher: name: University of Illinois at Chicago
Year: 2024

description: Though Critical Race Studies scholars and Disability Legal Studies scholars have developed analyses accounting for the role of race and disability in the law, respectively, neither has sufficiently attended to the complexity in accounting for both race and disability at the same time. In this dissertation, I introduce a Disability Studies and Critical Race (Dis/Crit) Legal Analysis framework. Utilizing Dis/Crit Legal Analysis, I unearth how race and disability play a role in the Burger Supreme Court (1969-1986) cases related to competency to stand trial, insanity as a criminal defense, and competency to be executed. Using “storytelling” as methodology, I contextualize three Supreme Court cases by delving into the historical trajectories of the areas of law at play, the stories of the lives of the petitioners who cases made their way to the Supreme Court, and the social and political milieu during those cases. By analyzing this area of law through this framework, I discover the disconnect between theory and practice, the contingency and role of racism and ableism in America, and the strategies employed to assist disabled clients caught in the criminal legal system whether or not they reinforce a broken system.
Nanosized Fe3O4/SiO2 core-shells fabricated from natural sands, magnetic properties, and their application for dye adsorption
Creators: name: Munasir
name: Taufiq, Ahmad
name: Ambarwati Teraningtyas
name: Diah Hari Kusumawati
name: Zainul Arifin Imam Supardi
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2022
Subjects: Fe3O4/SiO2
Magnetic nanoparticle
Dye color
Wastewater

description: Engineering and Applied Science Research, 49, 3, 340-352
Effects of drivers' speed during the yellow-light signal and satisfaction of drivers at the intersections with the red-light cameras
Creators: name: Phongphan Tankasem
name: Wuttikrai Chaipanha
name: Patiphan Kaewwichian
name: Jetsada Kumphong
name: Thanapol Promraksa
name: Thanyarat Sateinnam
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2022
Subjects: RLC
Yellow light
Red-light running
Red-light camera
Satisfaction

description: Engineering and Applied Science Research, 49, 3, 353-362
Private information via the Unruh effect
Creators: name: Bradler, Kamil
name: Hayden, Patrick
name: Panangaden, Prakash
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a relativistic theory of quantum information, the possible presence of horizons is a complicating feature placing restrictions on the transmission and retrieval of information. We consider two inertial participants communicating via a noiseless qubit channel in the presence of a uniformly accelerated eavesdropper. Owing to the Unruh effect, the eavesdropper's view of any encoded information is noisy, a feature the two inertial participants can exploit to achieve perfectly secure quantum communication. We show that the associated private quantum capacity is equal to the entanglement-assisted quantum capacity for the channel to the eavesdropper's environment, which we evaluate for all accelerations.
description: 5 pages. v2: footnote deleted and typos corrected. v3: major revision. New capacity (single-letter!) theorem and implicit assumption lifted
Constraining properties of neutron stars with heavy-ion reactions in terrestrial laboratories
Creators: name: Li, Bao-An
name: Chen, Lie-Wen
name: Ko, Che Ming
name: Krastev, Plamen G.
name: Steiner, Andrew W.
name: Yong, Gao-Chan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Heavy-ion reactions provide a unique means to investigate the equation of state (EOS) of neutron-rich nuclear matter, especially the density dependence of the nuclear symmetry energy $E_{sym}(ρ)$. The latter plays an important role in understanding many key issues in both nuclear physics and astrophysics. Recent analyses of heavy-ion reactions have already put a stringent constraint on the $E_{sym}(ρ)$ around the saturation density. This subsequently allowed us to constrain significantly the radii and cooling mechanisms of neutron stars as well as the possible changing rate of the gravitational constant G.
description: 6 pages. Talk given at the Nuclear Physics in Astrophysics III, Dresden, Germany, March 26-31, 2007. To appear in a special volume of J. of Phys. G
Constraining nonstandard neutrino interactions at electron colliders
Creators: name: Liao, Jiajun
name: Zhang, Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The presence of nonstandard neutrino interactions (NSI) has a large effect on the precision measurements at next generation neutrino oscillation experiments. Other type of experiments are needed to constrain the NSI parameter space. We study the constraints on NSI with electrons from current and future $e^+e^-$ collider experiments including Belle II, STCF and CEPC. We find that Belle II and STCF will provide competitive and complementary bounds on electron-type NSI parameters compared to the current global analysis, and strong improvements for the constraints on tau-type NSI. In addition, CEPC alone will impose stringent constraints on the parameter space of NSI with electrons. We find that the degeneracy between the left-handed (vector) and right-handed (axial-vector) NSI parameters can be lifted by combining the data from three different running modes, and the allowed ranges for $|ε_{ee}^{eL}|$ ($|ε_{ee}^{eV}|$) and $|ε_{ee}^{eR}|$ ($|ε_{ee}^{eA}|$) can be constrained to be smaller than 0.002 at CEPC even if both of them are present.
description: 19 pages, 10 figures, 2 tables
Causal signal transmission by quantum fields. I. Response of the harmonic oscillator
Creators: name: Plimak, L. I.
name: Stenholm, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is shown that response properties of a quantum harmonic oscillator are in essence those of a classical oscillator, and that, paradoxical as it may be, these classical properties underlie all quantum dynamical properties of the system. The results are extended to non-interacting bosonic fields, both neutral and charged.
description: Accepted to Annals of Physics
Empirical transverse charge densities in the deuteron
Creators: name: Carlson, Carl E.
name: Vanderhaeghen, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the recent empirical information on the deuteron electromagnetic form factors we map out the transverse charge density in the deuteron as viewed from a light front moving towards the deuteron. The charge densities for a transversely polarized deuteron are characterized by monopole, dipole and quadrupole patterns.
description: 4 pages, 2 figures
Swirling combustion of premixed gaseous reactants in a short cylindrical chamber
Creators: name: Pierik, Ronald Jay
Publisher: name: University of British Columbia
Year: 2010

description: The effects of swirl and spark location on combustion duration were studied in a constant volume cylindrical chamber of length-to-diameter ratio of 0.5. A chemically balanced methane-air mixture was swirled up to 628 radians per second by tangential injection. The chamber was closed by a valve before ignition by a spark gap of variable location and electrode geometry. The burning duration, indicated by repeated measurements of combustion pressure rise, was found to be a strong function of swirl intensity and spark location. Increased swirl resulted in decreased burning duration; mid-radius ignition location combined with high swirl resulted in the shortest combustion durations. Spark gap was found to have an important effect on the standard deviation of the burning duration, especially with high swirl. Various "flame holders" were installed to achieve shorter burning durations and lower cyclic variation. Results indicated that the best ignition source geometry was an unshielded, low-drag probe. This gave the least burning durations and the least cyclic variation at the higher swirl values.
Reduction and adsorption co-processes for selenate removal by zeolite-supported nanoscale zero-valent iron
Creators: name: Jakkapop Phanthasri
name: Dickson Y.S. Yan
name: Kitirote Wantala
name: Rattabal Khunphonoi
name: Visanu Tanboonchuy
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2022
Subjects: Selenate
Selenium
Fly ash
Zeolite
Nanoscale zero-valent iron
Adsorption

description: Engineering and Applied Science Research, 49, 3, 363-372
A review of integrable deformations in AdS/CFT
Creators: name: Swanson, Ian
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Marginal beta deformations of N=4 super-Yang-Mills theory are known to correspond to a certain class of deformations of the S^5 background subspace of type IIB string theory in AdS_5 x S^5. An analogous set of deformations of the AdS_5 subspace is reviewed here. String energy spectra computed in the near-pp-wave limit of these backgrounds match predictions encoded by discrete, asymptotic Bethe equations, suggesting that the twisted string theory is classically integrable in this regime. These Bethe equations can be derived algorithmically by relying on the existence of Lax representations, and on the Riemann-Hilbert interpretation of the thermodynamic Bethe ansatz. This letter is a review of a seminar given at the Institute for Advanced Study, based on research completed in collaboration with McLoughlin.
description: 16 pages; Seminar review written for the `Brief Reviews' section of Mod. Phys. Lett. A: [http://www.worldscinet.com/mpla/mpla.shtml]
An effective local routing strategy on the BA network
Creators: name: Li, Yu-Jian
name: Xi, Zhen-Dong
name: Yin, Chuan-Yang
name: Wang, Bing-Hong
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this paper, We propose a effective routing strategy on the basis of the so-called nearest neighbor search strategy by introducing a preferential delivering exponent alpha. we assume that the handling capacity of one vertex is proportional to its degree when the degree is smaller than a cut-off value $K$, and is infinite otherwise. It is found that by tuning the parameter alpha, the scale-free network capacity measured by the order parameter is considerably enhanced compared to the normal nearest-neighbor strategy. Traffic dynamics both near and far away from the critical generating rate R_c are discussed. We also investigate R_c as functions of m (connectivity density), K (cutoff value). Due to the low cost of acquiring nearest-neighbor information and the strongly improved network capacity, our strategy may be useful and reasonable for the protocol designing of modern communication networks.
description: 9 pages, 5 figures
Comparative study on path interval determinations in filleted end milling
Creators: name: Sekine, Tsutomu
name: Kameya, Kyoko
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2022
Subjects: Tool path generation
Path interval
Multi-axis CNC machining
Filleted end mill
Modeling error

description: Engineering and Applied Science Research, 49, 3, 373-380