cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Julia And Python In Astronomy: Better Together
Creators: name: Barbary, Kyle
Publisher: name: Zenodo
Year: 2016
Subjects: Python
Astronomy
Julia

description: Astronomers love Python because it is open source, easy to learn, and has a tremendous ecosystem for scientific computing. The Julia programming language has many of those same characteristics. In this talk, I discuss Julia, its use in astronomy and the growing ecosystem of astronomy packages, particularly those managed by the JuliaAstro organization (http://JuliaAstro.github.io).
Old Version Of: Existence And Uniqueness Of Solutions To Dynamic Models With Occasionally Binding Constraints.
Creators: name: Holden, Tom D.
Publisher: name: Zenodo
Year: 2016
Subjects: occasionally binding constraints
zero lower bound
existence
uniqueness
price targeting
Taylor principle
linear complementarity problem

description: This version is out of date. Please see the latest version here: https://zenodo.org/record/59196
description: C62
E3
E4
E5
Styles of thinking: towards a synthesis of the cognitive and neuropsychological research and its application for comparing students in architecture and medicine
Creators: name: Kienholz, Alice, 1948-
Publisher: name: University of Calgary
Year: 1984
Subjects: subject: BF 311 K52 1986
subject: Cognitive styles
subject: Cerebral dominance

description: Bibliography: p. 83-96.
Old Version Of: Computation Of Solutions To Dynamic Models With Occasionally Binding Constraints.
Creators: name: Holden, Tom D.
Publisher: name: Zenodo
Year: 2016
Subjects: occasionally binding constraints
zero lower bound
computation
DSGE
linear complementarity problem

description: This version is out of date. Please see the latest version here: https://zenodo.org/record/59197
description: C61
C63
E3
E4
E5
Nonlinear dynamic analysis of an optimal particle damper
Creators: name: Sánchez, Martín
name: Carlevaro, C. Manuel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the dynamical behavior of a single degree of freedom mechanical system with a particle damper. The particle (granular) damping was optimized for the primary system operating condition by using an appropriate gap size for a prismatic enclosure. The particles absorb the kinetic energy of the vibrating structure and convert it into heat through the inelastic collisions and friction. This results in a highly nonlinear mechanical system. Considering linear signal analysis, state space reconstruction, Poincaré sections and the determination of maximal Lyapunov exponents, the motion of the granular system inside the enclosure is characterized for a wide frequency range. With the excitation frequency as control parameter, either regular and chaotic motion of the granular bed are found and their influence on the damping is analyzed.
description: 18 pages, 8 figures. arXiv admin note: text overlap with arXiv:1105.0304
Tandem aerodynamic aerosol classifier – differential mobility analyzer as a single charged aerosol source for diameters up to one micrometer
Creators: name: Owen, Miles
name: Grisham, Morgan
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: This work describes a method to generate monodisperse, spherical, single-charged aerosols for instrument calibration in the size range of 32 – 1000 nm using an aerodynamic aerosol classifier (AAC) and differential mobility analyzer (DMA) in series. The AAC is used to input a monodisperse aerosol into the DMA to reduce the fraction of larger multiple charged particles exiting the DMA. The method produces test aerosols over a wide size range with less than 1% multiple charging and in concentrations between 4,000 – 10,000 particles/cm3 at more than 2 liters/minute flow rate, sufficient to be measured with the aerosol electrometer and condensation particle counter (CPC). At diameters between 32 nm and 1000 nm, the multiple charging was less than 0.1%. Operating parameters for the AAC and DMA are provided, along with CPC detection efficiencies up to 1000 nm measured with traceability to the international system of units. Use of the AAC allows for calibrations to be performed over almost the full particle diameter range of the DMA with an easily reproduced experimental setup using commercially available equipment.
Sibling relationships in single-parent versus married-parent families
Creators: name: Kier, Cheryl A. (Cheryl Ann), 1959-
Publisher: name: University of Calgary
Year: 1984
Subjects: subject: BF 723 S43 K52 1986
subject: Brothers and sisters
subject: Children of single parents
subject: Parent and child

description: Bibliography: p. 104-114.
Tunable morphing of electroactive dielectric-elastomer balloons
Creators: name: Su, Yipin
name: Riccobelli, Davide
name: Chen, Yingjie
name: Chen, Weiqiu
name: Ciarletta, Pasquale
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Designing smart devices with tunable shapes has important applications in industrial manufacture. In this paper, we investigate the nonlinear deformation and the morphological transitions between buckling, necking, and snap-through instabilities of layered DE balloons in response to an applied radial voltage and an inner pressure. We propose a general mathematical theory of nonlinear electro-elasticity able to account for finite inhomogeneous strains provoked by the electro-mechanical coupling. We investigate the onsets of morphological transitions of the spherically symmetric balloons using the surface impedance matrix method. Moreover, we study the nonlinear evolution of the bifurcated branches through finite element numerical simulations. Our analysis demonstrates the possibility to design tunable DE spheres, where the onset of buckling and necking can be controlled by geometrical and mechanical properties of the passive elastic layers. Relevant applications include soft robotics and mechanical actuators.
Martin Jahn, Gab es in der vorgeschichtlichen Zeit bereits einen Handel?
Creators: name: Geschwindt, F.
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: Martin Jahn, Gab es in der vorgeschichtlichen Zeit bereits einen Handel? Abhandlungen der Sachsischen Akademie der Wissenschaften zu Leipzig Bd. 48, H. 4. Akademie-Verlag Berlin 1956. 41 Seiten, 2 Tafeln, 10 Abbildungen.
description: Bonner Jahrbücher, Bd. 157 (1957): Bonner Jahrbücher
Victorine v. Gonzenbach, Untersuchungen zu den Knabenweihen im Isiskult der römischen Kaiserzeit
Creators: name: Morenz, S.
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: Victorine v. Gonzenbach, Untersuchungen zu den Knabenweihen im Isiskult der römischen Kaiserzeit. Antiquitas 1, Bd. IV (Bonn 1957) 8°. 167 Seiten, 32 Tafeln.
description: Bonner Jahrbücher, Bd. 157 (1957): Bonner Jahrbücher
The Lightest Higgs Boson Mass in Pure Gravity Mediation Model
Creators: name: Ibe, Masahiro
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the lightest Higgs boson mass in the minimal supersymmetric Standard Model with "pure gravity mediation". By requiring that the model provides the observed dark matter density, we find that the lightest Higgs boson is predicted to be below 132GeV. We also find that the upper limit on the lightest Higgs boson mass becomes 128GeV, if we further assume thermal leptogenesis mechanism as the origin of baryon asymmetry of universe. The interrelations between the Higgs boson mass and the gaugino masses are also discussed.
description: 18 pages, 5 figures, minor corrections
Double-Copying Self-Dual Yang-Mills Theory to Self-Dual Gravity on Twistor Space
Creators: name: Borsten, Leron
name: Jurco, Branislav
name: Kim, Hyungrok
name: Macrelli, Tommaso
name: Saemann, Christian
name: Wolf, Martin
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a simple Lorentz-invariant action for maximally supersymmetric self-dual Yang-Mills theory that manifests colour-kinematics duality. We also show that this action double copies to a known action for maximally supersymmetric self-dual gravity. Both actions live on twistor space and illustrate nicely the homotopy algebraic perspective on the double copy presented in arXiv:2307.02563. This example is particularly interesting as the involved Hopf algebra controlling the momentum dependence is non-commutative and suggests a generalisation to gauged maximally supersymmetric self-dual gravity.
description: 1+19 pages, extended presentation, published version
title: Landmarkenbasierte Registrierung menschlicher Cochleae
Creators: name: Ebrahimzadeh, Amir H.
Publisher: name: Hochschule Hannover
Year: 2021
Subjects: subject: 610 Medizin, Gesundheit
subject: 004 Informatik

description: Im Rahmen der vorliegenden Bachelorarbeit ging es um die Forschungsfrage, ob eine landmarkenbasierte Registrierung hinreichende Ergebnisse für die Anpassung eines Formmodells an eine segmentierte Cochlea liefert. Dazu wurden zwölf Landmarken auf die Oberfläche einer segmentierten Cochlea sowie auf die eines ausgewählten Formmodells gesetzt. Im Anschluss wurden die Abstände zwischen korrespondieren Landmarken des Formmodells und der segmentierten Cochlea mithilfe von drei verschiedenen Optimierungsverfahren minimiert. Bei dem quantitativen Vergleich zwischen den Ergebnissen der vorgestellten Optimierungsverfahren konnten keine signifikanten Unterschiede festgestellt werden. In der Evaluation wurde demonstriert, dass das Formmodell an der segmentierten Cochlea insgesamt hinreichend angenähert werden konnte. Lediglich in der Basalregion und am Apex der Cochlea ist die Anpassung noch verbesserungsbedürftig.
Evaluation strategies for monadic computations
Creators: name: Petricek, Tomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: I.1.3; D.3.2

description: Monads have become a powerful tool for structuring effectful computations in functional programming, because they make the order of effects explicit. When translating pure code to a monadic version, we need to specify evaluation order explicitly. Two standard translations give call-by-value and call-by-name semantics. The resulting programs have different structure and types, which makes revisiting the choice difficult. In this paper, we translate pure code to monadic using an additional operation malias that abstracts out the evaluation strategy. The malias operation is based on computational comonads; we use a categorical framework to specify the laws that are required to hold about the operation. For any monad, we show implementations of malias that give call-by-value and call-by-name semantics. Although we do not give call-by-need semantics for all monads, we show how to turn certain monads into an extended monad with call-by-need semantics, which partly answers an open question. Moreover, using our unified translation, it is possible to change the evaluation strategy of functional code translated to the monadic form without changing its structure or types.
description: In Proceedings MSFP 2012, arXiv:1202.2407
title: Mapping data acquisition and processing report, Cruise EX1302.
title: Ship shakedown & multibeam patch test, ROV shakedown & field trials, NE canyons exploration, May 13 - June 6, 2013, Charleston, South Carolina to North Kingstown, Rhode Island.
titleType: Subtitle
Creators: name: Lobecker, Elizabeth
name: Gallant, Laura T.
name: Jacklyn, James
name: Conway, Richard Earl
name: Harris, Ashley
name: Self-Miller, Vanessa
name: Kist, Jennifer
Publisher: name: NOAA Office of Ocean Exploration and Research.
Year: 2015
Subjects: subject: Okeanos Explorer (Ship). Cruise (EX1302 : ǂd 2013)
subject: Multibeam mapping--Atlantic Coast (U.S.)--Equipment and supplies--Testing.

description: The purpose of this report is to briefly describe the mapping data collection and processing methodsutilized during EX-13-02, and to report the cruise results with respect to mapping data. This report does not attempt to summarize overall ROV shakedown cruise results, which were the main objective for the latter two weeks of the cruise. For a detailed description of the Okeanos Explorer mapping capabilities, see the appendix section'Kongsberg EM 302 Multibeam Sonar Description and Operational Specifications' and the ship’s readiness report, which can be obtained by contacting the ship's operations officer (ops.explorer@noaa.gov) or the Okeanos Explorer Mapping team (oar.oer.mapping@noaa.gov).
A newly developed dilution system for optical particle size and concentration measurements in oil-injected screw compressors
Creators: name: Deichmann, Johannes C.
name: Straube, Christian
name: Eisengräber-Pabst, Jobst
name: Grein, Thomas
name: Meyer, Jörg
name: Dittler, Achim
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Oil mist coalescence separators are widely used downstream of screw compressors. Unfortunately, due to high concentration most of the available literature reporting particle sizes in raw or clean gas of screw compressors is on model systems at atmospheric pressure and room temperature. To study oil mist coalescence separators under real-world conditions, the pressurized aerosol needs to be diluted. In this work, two newly developed isobaric and isothermal dilution systems for particle size measurements using an optical particle counter (200 nm–10 µm) in the application scenario are presented. For both systems, one a single-stage and the other a triple-stage system, transfer functions were determined in the laboratory using a pressurized oil atomizer. As a proof of concept, the triple-stage dilution system was used on a compressor test bench to study the influence of operating conditions (varying pressure and volume flow) on the particle size distribution and concentration in raw and clean gas. Both raw and clean gas particle size distributions showed most particles in the size range below 500 nm. The achievable dilution factor of 1000 was sufficient for measuring the raw gas concentration. On a second compressor test bench, the single-stage dilution system was used to study the influence of different coalescence separators on clean gas particle size distribution and concentration. Three separators were used for experiments: one industry-typical reference separator, one with less layers, and one with a weakened entrainment separation fleece. As expected, the particle size distributions showed clear differences, i.e., higher penetration or increased entrainment. Copyright © 2023 American Association for Aerosol Research
Formal Verification of Robotic Contact Tasks via Reachability Analysis
Creators: name: Tang, Chencheng
name: Althoff, Matthias
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Verifying the correct behavior of robots in contact tasks is challenging due to model uncertainties associated with contacts. Standard methods for testing often fall short since all (uncountable many) solutions cannot be obtained. Instead, we propose to formally and efficiently verify robot behaviors in contact tasks using reachability analysis, which enables checking all the reachable states against user-provided specifications. To this end, we extend the state of the art in reachability analysis for hybrid (mixed discrete and continuous) dynamics subject to discrete-time input trajectories. In particular, we present a novel and scalable guard intersection approach to reliably compute the complex behavior caused by contacts. We model robots subject to contacts as hybrid automata in which crucial time delays are included. The usefulness of our approach is demonstrated by verifying safe human-robot interaction in the presence of constrained collisions, which was out of reach for existing methods.
description: This work has been accepted by the 22nd IFAC World Congress (2023 in Yokohama, Japan)
Immunopathogenesis of an experimental autoimmune renal disease in the rat
Creators: name: Cornish, Jillian, 1950-
Publisher: name: University of Calgary
Year: 1984
Subjects: subject: RC 918 G55 C649 1985
subject: Glomerulonephritis - Immunological aspects
subject: Autoimmune diseases
subject: Rats - Physiology

description: Bibliography: p. 162-177.
Ramsey Fringes and Time-domain Multiple-Slit Interference from Vacuum
Creators: name: Akkermans, Eric
name: Dunne, Gerald V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Sequences of alternating-sign time-dependent electric field pulses lead to coherent interference effects in Schwinger vacuum pair production, producing a Ramsey interferometer, an all-optical time-domain realization of the multiple-slit interference effect, directly from the quantum vacuum. The interference, obeying fermionic quantum statistics, is manifest in the momentum dependence of the number of produced electrons and positrons along the linearly polarized electric field. The central value grows like $N^2$ for $N$ pulses [i.e., $N$ "slits"], and the functional form is well-described by a coherent multiple-slit expression. This behavior is generic for many driven quantum systems.
description: 5 pp, 5 figures
Cuestionario sobre usos y actitudes hacía la tecnología e Internet de las personas mayores
Creators: name: Urbina, Santos
name: Tur, Gemma
name: Fernández, Irantzu
Publisher: name: Zenodo
Year: 2022
Subjects: active ageing; digital technology usage; digital technology attitudes; Likert scale

description: This questionnaire aims to collect the uses and attitudes towards technology and the Internet of the elderly and was prepared for a study carried out on the island of Ibiza (Spain).
 The tool is divided into two blocks, one on the use of technological devices and the Internet and the other related to attitudes towards ICT and the Internet. A content validation process was followed through the International Panel for Research in Educational Technology (PI2TE) . For this, a total of 10 experts were used.
 Subsequently, statistical validation was carried out.
description: The research for which this study has been prepared has been funded by the Spanish Ministry of Science and Innovation/State Research Agency/ Grant number PID2020-113101RB-I00
Level number variance and spectral compressibility in a critical two-dimensional random matrix model
Creators: name: Ossipov, A.
name: Rushkin, I.
name: Cuevas, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study level number variance in a two-dimensional random matrix model characterized by a power-law decay of the matrix elements. The amplitude of the decay is controlled by the parameter b. We find analytically that at small values of b the level number variance behaves linearly, with the compressibility chi between 0 and 1, which is typical for critical systems. For large values of b, we derive that chi=0, as one would normally expect in the metallic phase. Using numerical simulations we determine the critical value of b at which the transition between these two phases occurs.
description: 6 pages
Fuzzy order-sorted feature logic
Creators: name: Milanese, Gian Carlo
name: Pasi, Gabriella
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Order-Sorted Feature (OSF) logic is a knowledge representation and reasoning language based on function-denoting feature symbols and set-denoting sort symbols ordered in a subsumption lattice. OSF logic allows the construction of record-like terms that represent classes of entities and that are themselves ordered in a subsumption relation. The unification algorithm for such structures provides an efficient calculus of type subsumption, which has been applied in computational linguistics and implemented in constraint logic programming languages such as LOGIN and LIFE and automated reasoners such as CEDAR. This work generalizes OSF logic to a fuzzy setting. We give a flexible definition of a fuzzy subsumption relation which generalizes Zadeh's inclusion between fuzzy sets. Based on this definition we define a fuzzy semantics of OSF logic where sort symbols and OSF terms denote fuzzy sets. We extend the subsumption relation to OSF terms and prove that it constitutes a fuzzy partial order with the property that two OSF terms are subsumed by one another in the crisp sense if and only if their subsumption degree is greater than 0. We show how to find the greatest lower bound of two OSF terms by unifying them and how to compute the subsumption degree between two OSF terms, and we provide the complexity of these operations.
description: Accepted for publication in Fuzzy Sets and Systems
The Urban fringe: people and policies : a case study of Rocky View, Alberta
Creators: name: Price, Jacqueline D.
Publisher: name: Environmental Design
Year: 1986
Subjects: subject: HD 319 A25 P74 1987
subject: Land use, Rural - Alberta - Rocky View (Municipal District)
subject: Land use, Urban - Alberta - Calgary
subject: Land use, Alberta - Rocky View (Municipal District)
subject: Regional planning - Alberta - Rocky View (Municipal District)
subject: Rocky View (Alta. : Municipal District)

description: Bibliography: p. 223-230.
title: A Novel Isoallergen Dau c 1.0401 in Carrot : Stability, Allergenicity, and Comparison with Other Isoallergens
Creators: name: Jacob, Thessa
name: Wangorsch, Andrea
name: Vogel, Lothar
name: Reuter, Andreas
name: Mahler, Vera
name: Wöhrl, Birgitta M.
name: Biochemie IV ‐ Biopolymere, Universität Bayreuth, Universitätsstr. 30, Bayreuth, D‐95447 Germany
name: Molecular Allergology, Paul‐Ehrlich‐Institut, Langen, D‐63225 Germany
name: Division Of Allergology, Paul‐Ehrlich‐Institut, Langen, D‐63225 Germany
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: Allergenicity
subject: Dau c 1 isoallergen
subject: Mass spectrometry
subject: Protein stability
subject: RT‐PCR
subject: 540
subject: 570

description: Scope: Around 25% of food allergic persons in Central Europe suffer from carrot allergy caused by the major carrot allergen Dau c 1. Three different isoallergens, Dau c 1.01, Dau c 1.02 and Dau c 1.03 are identified. However, information about the qualitative and quantitative composition of natural (n)Dau c 1 is scarce. Methods and Results: The new carrot allergen Dau c 1.0401 is identified on the mRNA and protein level by RT‐PCR and mass spectrometry. It displays only around 60% sequence identity to the other known Dau c 1 isoallergens. NMR and CD‐spectra are typical for a well‐folded protein containing both α‐helices and β‐strands. It showed a poor refolding capacity after incubation at 95 °C. IgE‐binding is impaired in immunoblots, whereas in inhibition assays IgE binding to soluble Dau c 1.0401 is detected and it clearly provoked a response in mediator release assays. Conclusion: Dau c 1.0401 is a new isoallergen which contributes to the allergenicity of carrots. The absence of immunoreactivity in immobilized assays indicates that IgE binding is impaired when the protein is blotted on a solid phase. Altogether, the results point out that its allergenicity can be reduced upon carrot processing.
Algorithm for branching and population control in correlated sampling
Creators: name: Chen, Siyuan
name: Yang, Yiqi
name: Morales, Miguel
name: Zhang, Shiwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Correlated sampling has wide-ranging applications in Monte Carlo calculations. When branching random walks are involved, as commonly found in many algorithms in quantum physics and electronic structure, population control is typically not applied with correlated sampling due to technical difficulties. This hinders the stability and efficiency of correlated sampling. In this work, we study schemes for allowing birth/death in correlated sampling and propose an algorithm for population control. The algorithm can be realized in several variants depending on the application. One variant is a static method that creates a reference run and allows other correlated calculations to be added a posteriori. Another optimizes the population control for a set of correlated, concurrent runs dynamically. These approaches are tested in different applications in quantum systems, including both the Hubbard model and electronic structure calculations in real materials.
description: 10 pages, 8 figures
Parameterization of polydisperse aerosol optical properties during hygroscopic growth
Creators: name: Jung, Chang H.
name: Han, Kyung Man
name: Yoon, Young Jun
name: Kim, Dongchul
name: Lee, Ji Yi
name: Lee, Hyung-Min
name: Um, Junshik
name: Lee, Seoung Soo
name: Kim, Yong Pyo
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Aerosol water uptake and the related influence on its optical properties owing to the hygroscopic growth of polydisperse aerosols have a significant effect on air quality and climate. This study develops an analytical parameterization for a single hygroscopic optical parameter and the scattering enhancement factor for polydisperse aerosol sizes. Polydisperse lognormal size distributions for geometric mean diameters of 0.05–1 µm and geometric standard deviations of 1.3–2.5 are considered with real refractive indices between 1.35 and 1.6. The analytical expression obtained for the optical parameter is compared to Mie theory and reasonable agreements within the size range investigated in this study are observed. Further, our results show that the analytical expression could express polydispersed aerosol optical properties as a function of geometric mean diameter and geometric standard deviation of a lognormal distribution and the refractive index. The obtained analytical expression can be efficiently used for 3D models with a reduced computational burden. Copyright © 2023 American Association for Aerosol Research
Synthesis of the N-Butyl Ester and N-Butylamide of Methyl-Phenylphosphinic Acid – Two Case Studies
Creators: name: Kiss, Nóra Zsuzsa
name: Henyecz, Réka
name: Jablonkai, Erzsébet
name: Keglevich, György
Publisher: name: Figshare
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology

description: n-Butyl methyl-phenylphosphinate and methyl-phenylphosphinic n-butylamide were synthesized by different methods comprising the reaction of methyl-phenylphosphinyl chloride with nBuOH or nBuNH2, respectively, the T3P®-promoted derivatization of methyl-phenylphosphinic acid with nBuOH or nBuNH2, the microwave-assisted direct esterification of the model phosphinic acid, and finally the alkylating esterification with n-butyl bromide under phase transfer catalytic and MW-assisted conditions. The different methods, mostly elaborated by us, were compared from practical and environmentally-friendly points of view.
Fis Einführung Als Gemeinsame Aufgabe Von Bibliothek Und Technischer Universität / Fis Implementation As Joint Challenge For Library And Technical University
Creators: name: Gausmann, Ulrike
name: Berthold, Henrike
Publisher: name: Zenodo
Year: 2016
Subjects: FIS
CRIS
KDSF
VIVO
Forschungsinformationssystem
Current research information system
TU Dresden
SLUB Dresden

description: 105. Deutscher Bibliothekartag in Leipzig 2016

6. Bibliothekskongress / Themenkreis 4: Wissen organisieren und erhalten / Forschungsinformationssysteme: Best Practice und aktuelle Trends (15.03.2016, 16:00-18:00, Seminarraum 14/15)
Parameterization of polydisperse aerosol optical properties during hygroscopic growth
Creators: name: Jung, Chang H.
name: Han, Kyung Man
name: Yoon, Young Jun
name: Kim, Dongchul
name: Lee, Ji Yi
name: Lee, Hyung-Min
name: Um, Junshik
name: Lee, Seoung Soo
name: Kim, Yong Pyo
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Biotechnology
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
classificationCode: 20199
subject: Astronomical and Space Sciences not elsewhere classified
subject: Developmental Biology
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences

description: Aerosol water uptake and the related influence on its optical properties owing to the hygroscopic growth of polydisperse aerosols have a significant effect on air quality and climate. This study develops an analytical parameterization for a single hygroscopic optical parameter and the scattering enhancement factor for polydisperse aerosol sizes. Polydisperse lognormal size distributions for geometric mean diameters of 0.05–1 µm and geometric standard deviations of 1.3–2.5 are considered with real refractive indices between 1.35 and 1.6. The analytical expression obtained for the optical parameter is compared to Mie theory and reasonable agreements within the size range investigated in this study are observed. Further, our results show that the analytical expression could express polydispersed aerosol optical properties as a function of geometric mean diameter and geometric standard deviation of a lognormal distribution and the refractive index. The obtained analytical expression can be efficiently used for 3D models with a reduced computational burden. Copyright © 2023 American Association for Aerosol Research
Slow and Fast Transitions in the Rising Phase of Outbursts from NS-LMXB transients, AqlX-1 and 4U1608-52
Creators: name: Asai, Kazumi
name: Matsuoka, Masaru
name: Mihara, Tatehiro
name: Sugizaki, Mutsumi
name: Serino, Motoko
name: Nakahira, Satoshi
name: Negoro, Hitoshi
name: Ueda, Yoshihiro
name: Yamaoka, Kazutaka
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyzed the initial rising behaviors of X-ray outbursts from two transient low-mass X-ray binaries (LMXBs) containing a neutron-star (NS), Aql X-1 and 4U 1608-52, which are continuously being monitored by MAXI/GSC in 2--20 keV, RXTE/ASM in 2--10 keV, and Swift/BAT in 15--50 keV. We found that the observed ten outbursts are classified into two types by the patterns of the relative intensity evolutions in the two energy bands below/above 15 keV. One type behaves as the 15--50 keV intensity achieves the maximum during the initial hard-state period and drops greatly at the hard-to-soft state transition. On the other hand, the other type does as both the 2--15 keV and the 15--50 keV intensities achieve the maximums after the transition. The former have the longer initial hard-state ($\gtrsim$ 9 d) than the latter's ($\ltsim$5 d). Therefore, we named them as slow-type (S-type) and fast-type (F-type), respectively. These two types also show the differences in the luminosity at the hard-to-soft state transition as well as in the average luminosity before the outburst started, where the S-type are higher than the F-type in the both. These results suggest that the X-ray radiation during the pre-outburst period, which heats up the accretion disk and delays the disk transition (i.e., from a geometrically thick disk to a thin one), would determine whether the following outburst becomes S-type or F-type. The luminosity when the hard-to-soft state transition occurs is higher than $\sim 8 \times10^{36}$ erg s$^{-1}$ in the S-type, which corresponds to 4% of the Eddington luminosity for a 1.4 \Mo NS.
description: 14 pages, 10 figures; Publications of the Astronomical Society of Japan, 2013
Central Speed of Sound, Trace Anomaly and Observables of Neutron Stars from Perturbative Analyses of Scaled TOV Equations
Creators: name: Cai, Bao-Jun
name: Li, Bao-An
name: Zhang, Zhen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The central speed of sound (SS) measures the stiffness of the Equation of State (EOS) of superdense neutron star (NS) matter. Its variations with density and radial coordinate in NSs in conventional analyses often suffer from uncertainties of the specific nuclear EOSs used. Using the central SS and NS mass/radius scaling obtained from solving perturbatively the scaled Tolman-Oppenheimer-Volkoff (TOV) equations, we study the variations of SS, trace anomaly and several closely related properties of NSs in an EOS-model independent manner. We find that the SS increases with the reduced central pressure $\widehat{P}_{\rm{c}}\equiv P_{\rm{c}}/\varepsilon_{\rm{c}}$ (scaled by the central energy density $\varepsilon_{\rm{c}}$), and the conformal bound for SS tends to break down for NSs with masses higher than about 1.9$M_{\odot}$. The ratio $P/\varepsilon$ is upper bounded as $P/\varepsilon\lesssim0.374$ around the centers of stable NSs. We demonstrate that it is an intrinsic property of strong-field gravity and is more relevant than the perturbative QCD bound on it. While a sharp phase transition at high densities characterized by a sudden vanishing of SS in cores of massive NSs are basically excluded, the probability for a continuous crossover signaled by a peaked radial profile of SS is found to be enhanced as $\widehat{P}_{\rm{c}}$ decreases, implying it likely happens near the centers of massive NSs. Moreover, a new and more stringent causality boundary as $R_{\max}/\rm{km}\gtrsim 4.73M_{\rm{NS}}^{\max}/M_{\odot}+1.14$ for NS M-R curve is found to be excellently consistent with observational data on NS masses and radii. Furthermore, new constraints on the ultimate energy density and pressure allowed in NSs before collapsing into black holes are obtained and compared with earlier predictions in the literature.
description: Phys. Rev. D (2023) in press
Towards Conformal Invariance and a Geometric Representation of the 2D Ising Magnetization Field
Creators: name: Camia, Federico
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 82B27, 60K35, 82B43, 60D05

description: We study the continuum scaling limit of the critical Ising magnetization in two dimensions. We prove the existence of subsequential limits, discuss connections with the scaling limit of critical FK clusters, and describe work in progress of the author with C. Garban and C.M. Newman.
description: 20 pages, 1 figure, presented at the workshop "Inhomogeneous Random Systems" held at IHP (Paris) on January 26-27, 2010
Dissimilarity maps on trees and the representation theory of $GL_n(\C)$
Creators: name: Manon, Christopher
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We revisit the representation theory in type $A$used previously to establish that the dissimilarity vectors of phylogenetic trees are points on the tropical Grassmannian variety. We use a different version of this construction to show that the space of phylogenetic trees $K_n$ maps to the tropical varieties of every flag variety of $GL_n(\C).$ Using this map, we interpret the tropicalization of the semistandard tableaux basis of an irreducible representation of $GL_n(\C)$ as combinatorial invariants of phylogenetic trees.
description: 6 figures
Reactive nitrogen and total organic carbon calibration techniques for the Aerodyne aerosol mass spectrometer
Creators: name: Price, Derek J.
name: Piasecki, Alison M.
name: Shah, Rishabh U.
name: Hayden, Katherine L.
name: Burkholder, James B.
name: Roberts, James M.
name: Middlebrook, Ann M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
classificationCode: 29999
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Plant Biology

description: The Aerodyne aerosol mass spectrometer (AMS) is used extensively to measure the chemical composition of non-refractory submicron aerosol particles for laboratory and atmospheric field studies. Typical AMS calibration methods are mass-based, involving generating pure or mixtures of particles with a known size and number concentration. Here we present a new calibration method using a heated platinum/molybdenum catalyst-based conversion technique that provides an independent measurement of reactive nitrogen (Nr) and total organic carbon (Cy) traceable to gas-phase standards of nitric oxide (NO) and carbon dioxide (CO2), respectively. The calibration method was tested using dried particles composed of pure ammonium nitrate (AN), other ammonium salts, and nitrogen-containing organic species. The nitrate ionization efficiencies determined with the AMS single particle or Nr calibration methods matched within experimental uncertainties (±15%). By measuring the AMS lens transmission efficiency and incorporating light-scattering measurements of the AMS collection efficiency, the catalyst method independently showed that the AMS relative ionization efficiency (RIE) for ammonium was essentially the same among different ammonium containing compounds (±9%), regardless of the corresponding anion and stoichiometry, quantifying support of a major assumption inherent in AMS calibrations. The Nr and Cy measurements were used to calibrate the RIE for 4-nitrocatechol (1.1 ± 0.4), isosorbide mononitrate (1.2 ± 0.1) and triammonium citrate (2.1 ± 0.2), which were within the range of organic RIEs used in AMS quantitation. The combined catalyst system provided more accurate measurements of the elemental carbon-to-nitrogen ratios than the high-resolution AMS elemental analysis using the Improved-Ambient method plus the inorganic nitrogen.
Formation of a disk structure in the symbiotic binary AX Per during its 2007-10 precursor-type activity
Creators: name: Skopal, A.
name: Tarasova, T. N.
name: Cariková, Z.
name: Castellani, F.
name: Cherini, G.
name: Dallaporta, S.
name: Frigo, A.
name: Marangoni, C.
name: Moretti, S.
name: Munari, U.
name: Righetti, G. L.
name: Siviero, A.
name: Tomaselli, S.
name: Vagnozzi, A.
name: Valisa, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: AX Per is an eclipsing symbiotic binary. During active phases, deep narrow minima are observed in its light curve, and the ionization structure in the binary changes significantly. From 2007.5, AX Per entered a new active phase. It was connected with a significant enhancement of the hot star wind. Simultaneously, we identified a variable optically thick warm (Teff ~ 6000 K) source that contributes markedly to the composite spectrum. The source was located at the hot star's equator and has the form of a flared disk, whose outer rim simulates the warm photosphere. The formation of the neutral disk-like zone around the accretor during the active phase was connected with its enhanced wind. We suggested that this connection represents a common origin of the warm pseudophotospheres that are indicated during the active phases of symbiotic stars.
description: 13 pages, 9 figures, 8 tables, accepted for A&A
Steganography Algorithm to Hide Secret Message inside an Image
Creators: name: Ibrahim, Rosziati
name: Kuan, Teoh Suk
Publisher: name: arXiv
Year: 2011
Subjects: subject: Multimedia (cs.MM)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In this paper, the authors propose a new algorithm to hide data inside image using steganography technique. The proposed algorithm uses binary codes and pixels inside an image. The zipped file is used before it is converted to binary codes to maximize the storage of data inside the image. By applying the proposed algorithm, a system called Steganography Imaging System (SIS) is developed. The system is then tested to see the viability of the proposed algorithm. Various sizes of data are stored inside the images and the PSNR (Peak signal-to-noise ratio) is also captured for each of the images tested. Based on the PSNR value of each images, the stego image has a higher PSNR value. Hence this new steganography algorithm is very efficient to hide the data inside the image.
description: 7 pages, 7 figures
The X-ray corona in the black-hole binary GRO J1655--40 from the properties of non-harmonically related quasi-periodic oscillations
Creators: name: Rout, Sandeep K.
name: Mendez, Mariano
name: Garcia, Federico
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The study of quasi periodic oscillations (QPOs) plays a vital role in understanding the nature and geometry of the Comptonizing medium around black-hole X-ray binaries. The spectral-state dependence of various types of QPOs (namely A, B, & C) suggests that they could have different origins. The simultaneous presence of different types of QPOs would therefore imply the simultaneous occurrence of different mechanisms. In this work we study the radiative properties of two non-harmonically related QPOs in the black-hole binary GRO J1655--40 detected at the peak of the ultraluminous state during the 2005 outburst of the source. The two QPOs have been previously identified as types B & C, respectively. We jointly fit the phase-lag and rms spectra of the QPOs and the time-averaged spectrum of the source with the time-dependent Comptonization model vkompth to infer the geometry of the media producing the QPOs. The time-averaged spectrum required a hot disk of 2.3 keV and a steep power law with index 2.7, revealing that the source was in an ultraluminous state. The corona that drives the variability of the type-B QPO is smaller in size and has a lower feedback fraction than the one that drives the variability of the type-C QPO. This suggests the simultaneous presence of a horizontally extended corona covering the accretion disk and a vertically elongated jet-like corona that are responsible for the type-C & B QPOs, respectively.
description: Updated with corrections from https://doi.org/10.1093/mnras/stad2899
Parameterization of Polydisperse Aerosol Optical Properties during Hygroscopic Growth
Creators: name: Jung, Chang H.
name: Han, Kyung Man
name: Yoon, Young Jun
name: Kim, Dongchul
name: Lee, Ji Yi
name: Lee, Hyung-Min
name: Um, J.
name: Lee, S. S.
name: Kim, Yong Pyo
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Aerosol water uptake and the related influence on its optical properties owing to the hygroscopic growth of polydisperse aerosols have a significant effect on air quality and climate. This study develops an analytical parameterization for a single hygroscopic optical parameter and the scattering enhancement factor for polydisperse aerosol sizes. Polydisperse lognormal size distributions for geometric mean diameters of 0.05–1 μm and geometric standard deviations of 1.3–2.5 are considered with real refractive indices between 1.35-1.6. The analytical expression obtained for the optical parameter is compared to Mie theory and reasonable agreements within the size range investigated in this study are observed. Further, our results show that the analytical expression could express polydispersed aerosol optical properties as a function of geometric mean diameter and geometric standard deviation of a lognormal distribution and the refractive index. The obtained analytical expression can be efficiently used for 3D models with a reduced computational burden.
Type II t-J model and shared antiferromagnetic spin coupling from Hund's rule in superconducting La$_3$Ni$_2$O$_7$
Creators: name: Oh, Hanbit
name: Zhang, Ya-Hui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently, a 80 K superconductor was discovered in La$_3$Ni$_2$O$_7$ under high pressure. Density function theory (DFT) calculations identify $d_{x^2-y^2}$, $d_{z^2}$ as the active orbitals on the bilayer square lattice with a $d^{8-x}$ configuration of of Ni per site. One naive expectation is to describe this system in terms of a two-orbital t-J model. However, we emphasize the importance of Hund's coupling $J_H$ and the $x=0$ limit should be viewed as a spin-one Mott insulator. Especially, the significant Hund's coupling shares the inter-layer super-exchange $J_\perp$ of the $d_{z^2}$ orbital to the $d_{x^2-y^2}$ orbital, an effect that cannot be captured by conventional perturbation or mean-field approaches. In this study, we first explore the limit where the $d_{z^2}$ orbital is Mott localized, dealing with a one-orbital bilayer t-J model focused on the $d_{x^2-y^2}$ orbital. Notably, we find that strong inter-layer pairing survives up to $x=0.5$ hole doping driven by the transmitted $J_\perp$, which explains the existence of a high Tc superconductor in the experiment at this doping level. Next, we uncover the more realistic situation where the $d_{z^2}$ orbital is slightly hole-doped and cannot be simply integrated out. We take the $J_H\rightarrow +\infty$ limit and propose a type II t-J model with four \textit{spin-half} singlon ($d^7$) states and three \textit{spin-one} doublon ($d^8$) states. Employing a parton mean-field approach, we recover similar results as in the one-orbital t-J model, but now with the effect of the $J_\perp$ automatically generated. We propose future experiments to electron dope the system to further enhance $T_c$.
description: 5+4 pages, 4+2 figures