cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The peculiar chemical pattern of the WASP-160 binary system: signatures of planetary formation and evolution?
Creators: name: Jofré, Emiliano
name: Petrucci, Romina
name: Chew, Yilen Gómez Maqueo
name: Ramírez, Ivan
name: Saffe, Carlos
name: Martioli, Eder
name: Buccino, Andrea
name: Mašek, Martin
name: García, Luciano
name: Canul, Eliab
name: Gómez, Mercedes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Wide binary stars with similar components hosting planets provide a favorable opportunity for exploring the star-planet chemical connection. We perform a detailed characterization of the solar-type stars in the WASP-160 binary system. No planet has been reported yet around WASP-160A while WASP-160B is known to host a transiting Saturn-mass planet, WASP-160B b. For this planet, we also derive updated properties from both literature and new observations. Furthermore, using TESS photometry, we constrain the presence of transiting planets around WASP-160A and additional ones around WASP-160B. The stellar characterization includes, for the first time, the computation of high-precision differential atmospheric and chemical abundances of 25 elements based on high-quality Gemini-GRACES spectra. Our analysis reveals evidence of a correlation between the differential abundances and the condensation temperatures of the elements. In particular, we find both a small but significant deficit of volatiles and an enhancement of refractory elements in WASP-160B relative to WASP-160A. After WASP-94, this is the second stellar pair among the shortlist of planet-hosting binaries showing this kind of peculiar chemical pattern. Although we discuss several plausible planet formation and evolution scenarios for WASP-160A and B that could explain the observed chemical pattern, none of them can be conclusively accepted or rejected. Future high-precision photometric and spectroscopic follow-up, as well as high-contrast imaging observations, of WASP-160A and B, might provide further constraints on the real origin of the detected chemical differences.
description: Accepted for publication in AJ, 28 pages, 13 figures, 5 tables
The feasibility of using supercritical carbon dioxide as a coolant for the CANDU reactor
Creators: name: Tom, Samsun Kwok-Sun
Publisher: name: University of British Columbia
Year: 2010

description: This study indicates the technical feasibility of using supercritical carbon dioxide as a coolant for a CANDU-type reactor. A new concept of supercritical cooling loop is proposed in this study. The reactor is cooled by a single phase coolant, which is pumped at a high density liquid-like state. The supercritical-fluid-cooled reactor has the advantage of avoiding dryout as in gas-cooled reactors, and the advantage of low coolant-circulation power as for liquid-cooled reactors. As a result of eliminating dryout, the maximum operating temperature of the fuel sheath can be increased to 1021°F (550°C) for existing Canadian fuel bundles. Accordingly, the coolant temperature in the case study of this work was calculated to be 855°F. This high temperature coolant can produce steam at a temperature and pressure comparable to that of conventional fossil-fuel plants. However, since the exit coolant temperature from the steam generator may be as low as 280°F, a portion of the supercritical carbon dioxide coolant is used to produce low-pressure steam. A new dual-reheat cycle is proposed to reduce the high degree of irreversibility in the steam generation process. In the new dual-reheat cycle, the coolant heats the low and high pressure feeds in a parallel manner instead of alternative heating as in dual-pressure cycles. The ideal overall plant efficiency of the new proposed dual-reheat cycle is 33.02%, which is comparable to that of the Pickering generating station.
Towards a More Robust Financial Market: A Systematic Review of the Need for the Inception of a Derivatives Market in Bangladesh
Creators: name: Tasnim Uddin Chowdhury
Publisher: name: Premier University Chattogram Bangladesh
Year: 2023
Subjects: Financial Market
Derivatives
Emerging Economies
Systematic Review
Market Efficiency

description: ASEAN Journal of Management & Innovation, 10, 2, 1 - 16
Bayesian optimization of discus flight distance for skill and equipment
Creators: name: Seo, Kazuya
name: Kikuchi, Ryota
Publisher: name: Loughborough University
Year: 2024

description: Engineering of Sport 15 - Proceedings from the 15th International Conference on the Engineering of Sport (ISEA 2024)
Discus throw is a sport in which the athletes attempt to gain the maximum flight distance. Via an empirical learning process, athletes have explored the optimal launch conditions to maximize flight distance. On the other hand, the sizes of a discus are limited based on the regulation. Discus designers have explored empirically the optimal sizes of these values to attain the maximum flight distance within the limits of the regulation. Hubbard and Cheng previously carried out an optimization study based on aerodynamic data. Their optimization was carried out for three control variables, which were the flight path angle, pitch angle and the roll angle at launch. To truly optimize the discus’s sizes and corresponding launch conditions, it is necessary to optimize both the discus design and the launch conditions. In this paper, the theoretical optimal launch conditions and sizes for the men’s discus were revealed for the purpose of maximizing the flight distance. Both the theoretical skill of the athlete and the equipment designed by the engineer were optimized simultaneously
Additional file 8 of Genetic diversity and population divergence of Leonurus japonicus and its distribution dynamic changes from the last interglacial to the present in China
Creators: name: Wang, Yiheng
name: Wang, Jingyi
name: Garran, Thomas Avery
name: Liu, Hangxiu
name: Lin, Huaibin
name: Luo, Jun
name: Yuan, Qingjun
name: Sun, Jiahui
name: Dong, Wenpan
name: Guo, Lanping
Publisher: name: figshare
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 8
Using Strategic Leadership and DMAIC to Transform a Global Hospitality Market Leader: A Case Study
Creators: name: Schlosser, Kristian P.
Publisher: name: RISEBA University of Applied Sciences Denmark
Year: 2023
Subjects: Strategic Leadership
Transformation
Change Management
Hospitality
DMAIC

description: ASEAN Journal of Management & Innovation, 10, 2, 17 - 37
KMD CARE
Creators: Faaborg Midtfyn Kommune
Publisher: name: Rigsarkivet
Year: 2022

description: Formålet med it-systemet er at samle dokumentation vedr. sagsbehandling, ydelser, intern kommunikation m.v. i forhold til borgere, der modtager ydelser inden for serviceloven og sundhedsloven. Derudover kunne kommunikere elektronisk med sygehuse, læger, apoteker i forhold til de gældende sundhedsaftaler. Kunne levere elektronisk data til Danmarks Statistik om borgernes ydelser m.m. samt danne grundlag for styring af økonomi og ressourcer.
Long Cycles in the Infinite-Range-Hopping Bose-Hubbard Model with Hard Cores
Creators: name: Boland, G.
name: Pulé, J. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we study the relation between long cycles and Bose-Condensation in the Infinite range Bose-Hubbard Model with a hard core interaction. We calculate the density of particles on long cycles in the thermodynamic limit and find that the existence of a non-zero long cycle density coincides with the occurrence of Bose-Einstein condensation but this density is not equal to that of the Bose condensate.
description: 26 pages, 2 figures. To appear in JSP
Dust in brown dwarfs and extra-solar planets. VIII. TiO$_2$ seed formation: 3D Monte Carlo versus kinetic approach
Creators: name: Köhn, C.
name: Helling, Ch.
name: Enghoff, M. Bødker
name: Haynes, K.
name: Krog, D.
name: Sindel, J. P.
name: Gobrecht, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We aim to understand the onset of cloud formation {and study the formation of} TiO$_2$-CCNs. The formation of (TiO$_2$)$_{\rm N}$ clusters as precursors to extrasolar cloud formation is modelled by two different methods in order to understand their potential, identify underlying shortcomings, and to validate our methods. We propose potential spectral tracers for TiO$_2$-CCN formation. We applied three-dimensional Monte Carlo (3D MC) simulations to model the collision-induced growth of TiO$_2$-molecules to (TiO$_2$)$_{\rm N}$-clusters in the free molecular flow regime of an atmospheric gas. We derived individual, time-dependent (TiO$_2$)$_{\rm N}$ cluster number densities. For $T=1000$K, the results are compared to a kinetic approach that utilises thermodynamic data for individual (TiO$_2$)$_{\rm N}$ clusters. The {(TiO$_2$)$_{\rm N}$} cluster size distribution is temperature dependent and evolves in time until a steady state is reached. For $T=1000$K, the 3D MC and the kinetic approach agree well regarding the cluster number densities for $N=1\,\ldots\,10$, the vivid onset of cluster formation, and the long transition into a steady state. Collision-induced growth and evaporation simulated using a 3D MC approach enables a faster onset of cluster growth through nucleation bursts. Different size distributions develop for monomer-cluster and for cluster-cluster growth, with the largest clusters appearing for cluster-cluster growth. The (TiO$_2$)$_N$ cluster growth efficiency has a sweet-spot temperature at $\approx 1000$K at which CCN formation is triggered. The combination of local thermodynamic conditions and chemical processes therefore determines CCN formation efficiency.
description: accepted for publication in A&A, 17 pages, 13 figures
Exploring Neural Audio Codec-based Contrastive Language-Audio Pre-training
Creators: name: Huang, Du
Publisher: name: Zenodo
Year: 2024
Subjects: Contrastive Learning
Representation Learning
Audio Embedding Models
Neural Audio Codecs
Contrastive Language-Audio Pretraining
Text-to-Audio Retrieval

description: This thesis investigates the potential of Neural Audio Codecs (NACs) to enrich the audio representation capabilities of Contrastive Language-Audio Pretraining (CLAP) models. We introduce an innovative evaluation approach to systematically compare various CLAP configurations utilizing distinct audio encoder modules on the text-to-audio retrieval task. Our rigorous experimental analysis implies that NAC-based modules offer superior feature discrimination and retrieval eficacy. The research presents a methodological framework for NAC integration in CLAP models, sets new performance benchmarks, and outlines future directions, emphasizing the development of universal audio embeddings and refined pre-training techniques.Our codes are available at https://github.com/duduOliver/SMC_CodecCLAP.
An Empirical Analysis of the Relationship between Motivation-Mediated Incentive and Sales Performance in the Malaysian IT Industry
Creators: name: The, Raymond
Publisher: name: Universiti Putra  Malaysia
Year: 2023
Subjects: Incentive
IT Industry
Motivation
Sales Behavior
Sales Performance
Malaysia

description: ASEAN Journal of Management & Innovation, 10, 2, 56 - 73
The changing accretion states of the intermediate polar MU Camelopardalis
Creators: name: Staude, A.
name: Schwope, A. D.
name: Schwarz, R.
name: Vogel, J.
name: Krumpe, M.
name: Gomez-Moran, A. Nebot
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the timing and spectral properties of the intermediate polar MU Camelopardalis (1RXS J062518.2+733433) to determine the accretion modes and the accretion geometry from multi-wavelength, multi-epoch observational data. Light curves in different observed energy ranges (optical, UV, X-ray) are extracted. The timescales of variability in these light curves are determined using Analysis of Variance. Phase-resolved X-ray spectra are created with respect to the most prominent detected periodicities and each fitted with an identical model, to quantify the differences in the fitted components. The published tentative value for the spin period is unambiguously identified with the rotation period of the white dwarf. We detect a distinct soft X-ray component that can be reproduced well by a black body. The analysis of data obtained at different epochs demonstrates that the system is changing its accretion geometry from disk-dominated to a combination of disk- plus stream-dominated, accompanied with a significant change in brightness at optical wavelengths.
description: Accepted for publication in Astron. Astrophys., 13 pages, 10 figures
Applying the Analytical Hierarchy Process (AHP) and Delphi Method to Identify the Criteria for the Selection of Healthcare Chatbots in Thailand
Creators: name: Sirirak  Phooriyaphan
Publisher: name: Rajamangala University  of Technology  Phra nakorn Thailand
Year: 2023
Subjects: Healthcare Chatbot
Analytic Hierarchy Process (AHP)
Delphi Method

description: ASEAN Journal of Management & Innovation, 10, 2, 74 - 81
An Economic analogy to Electrodynamics
Creators: name: Dasari, Sanjay
name: Biswas, Anindya Kumar
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Physics (physics.gen-ph)
subject: General Finance (q-fin.GN)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: In this note, we would like to find the laws of electrodynamics in simple economic systems. In this direction, we identify the chief economic variables and parameters, scalar and vector, which are amenable to be put directly into the crouch of the laws of electrodynamics, namely Maxwell's equations. Moreover, we obtain Phillp's curve, recession and Black-Scholes formula, as sample applications.
description: 19 pages, duality aspect added, expanded, to comply with journal version
The impact of massive stars and black holes on the fate of open star clusters and their tidal streams
Creators: name: Wang, Long
name: Jerabkova, Tereza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context: To investigate how the content of massive OB stars affects the long-term evolution of young open clusters and their tidal streams, and how such an effect influences the constraint of initial conditions by looking at the present-day observations. Aims: OB stars are typically in binaries, have a strong wind mass loss during the first few Myr, and many become black holes. These affect the dynamical evolution of an open star cluster and impact its dissolution in a given Galactic potential. We investigate the correlation between the mass of OB stars and the observational properties of open clusters. Hyades-like star clusters are well represented in the Solar neighborhood and thus allow comparisons with observational data. Methods: We perform a large number of star-by-star numerical $N$-body simulations of Hyades-like star clusters by using the high-performance $N$-body code \textsc{petar} combined with \textsc{galpy}. We also developed the tool to transfer the simulation data to mock observations of Gaia. Results: We find that OB stars and black holes have a major effect on star cluster evolution. Star clusters with the same initial conditions, but a different initial content of OB stars, follow very different evolutionary paths. Thus, the initial total mass and radius of an observed star cluster cannot be unambiguously determined unless the initial content of OB stars is known. We show that the stellar counts in the corresponding tidal tails, that can be identified in the Gaia data, help to resolve this issues. We thus emphasise the importance of exploring not only star-clusters, but also their corresponding tidal tails. These findings are relevant for studies of the formation of massive stars.
description: 12 pages, 8 figures, accepted to A&A on Sep. 8 2021
Additional file 1 of Genetic diversity and population divergence of Leonurus japonicus and its distribution dynamic changes from the last interglacial to the present in China
Creators: name: Wang, Yiheng
name: Wang, Jingyi
name: Garran, Thomas Avery
name: Liu, Hangxiu
name: Lin, Huaibin
name: Luo, Jun
name: Yuan, Qingjun
name: Sun, Jiahui
name: Dong, Wenpan
name: Guo, Lanping
Publisher: name: figshare
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 1
Application of work sampling to short cycle assembly operations
Creators: name: Villalobos Casillas, Humberto
Publisher: name: University of British Columbia
Year: 2010

description: The objective of this work is to study the applicability of work sampling to a short cycle repetitive operation and to compare the economics of work sampling technique with a conventional time study. To make this comparison, work sampling studies were carried out concurrently with ongoing time studies done by personnel of the Industrial Engineering department in a local lock factory. The criteria for the study were : 1. - The base data would ensure that the predictions would be within ± five percent of the true value with 95% certainty. These are standard confidence limits for most industrial applications. 2. - Preparation time for work sampling and time study were assumed to be equal. Two operations were studied, a line assembly operation and a bench assembly operation. The first study represents the work of a team of four people as a unit. The workers often changed their activities to achieve a better balance of the line, since the nature of the operation is such that it is practically impossible to have the workers at fixed positions performing the same activity all the time. The second activity represents numerous workers working independently at benches. The study proved that for assembly operations work sampling can be used to good effect and at viable cost when compared with standard stop watch study. The acceptability of the studies psychologically favours work sampling, as does the level of training required for the time study practitioner. It is generally accepted that a work sampling analyst could be trained in one-quarter of the time which would be required for time study.
MPEC 2024-S174 : 2024 SZ4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SZ4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
BOOK REVIEWBrand Singapore: Nation Branding in aWorld Disrupted by Covid-19 (3rd Edition)
Creators: name: Thittapong Daengrasmisopon
Publisher: name: Stamford International University
Year: 2023
Subjects: World Disrupted
Covid

description: ASEAN Journal of Management & Innovation, 10, 2, 82 - 84
Miljøadfærd i boligen: Moderne og sen-moderne livsstilsbegrebers forklaringskraft.,2004
Creators: Kirsten Gram Hansen By & Byg-Statens Byggeforskningsinstitu
Publisher: name: Rigsarkivet
Year: 2022

description: Undersøgelsen ser på miljøadfærden i boliger, blandt teenagere fra forskellige sociale klasser.
Investigating regulatory mechanisms for COL5A1 expression in the human cornea in health and disease
Creators: name: Mustafa, Mohammad Zuhair
Publisher: name: The University of Edinburgh
Year: 2022
Subjects: keratoconus
COL5A1
collagen
corneal thickness
cFos protein
PRDM5 protein
disease risk

description: Keratoconus is a complex corneal condition that is characterised by progressive corneal thinning and significant irregular astigmatism and eventual visual loss. The aetiology of keratoconus is not known although genetics is likely to play a large role in individual risk. The underlying biological process that leads to progressive stromal loss and corneal thinning in keratoconus may reflect a pathological extreme of the biological processes controlling healthy corneal thickness. Genome wide association studies (GWAS) have identified several loci significantly associated with central corneal thickness (CCT) and keratoconus risk. Of particular interest are the single nucleotide polymorphisms (SNPs) rs4841899, rs1536482, rs3132303 and rs7032489 positioned in an intergenic region of chromosome 9 between RXRA and COL5A1 and in the first intron of COL5A1 respectively. COL5A1 encodes the alpha chain of Type V Collagen, a regulatory fibril-forming collagen, and the second most abundant collagen in corneal stroma. Thus, I hypothesised that these variants lie in regulatory elements that affect COL5A1 transcription thereby influencing corneal thickness. Functional studies were performed to elucidate whether these variants have regulatory impact and to identify the underlying mechanisms of how they exert their effects. Luciferase assays showed that the CCT-reducing haplotypes around SNPs rs3118515, rs3132303 and rs1536482 lower enhancer activity compared to the alternate haplotypes, in human telomerase-immortalised keratocye cells (hTK). Rs3118515 was prioritised as a likely causal variant and modulates enhancer activity specifically in hTK. DNA binding factors cFos and PRDM5, respectively a component of the transcription factor AP1 and a regulator implicated in collagen gene regulation, were identified as candidates to bind near rs3118515. Chromatin immunoprecipitation confirmed PRDM5 and cFos binding to the genomic region encompassing rs3118515, in hTK cells. Inhibition of AP1 was found to significantly disrupt COL5A1 gene expression and protein expression in vitro. Small deletions introduced in hTK using CRISPR-Cas9 genome editing in the region flanking rs3118515 influenced COL5A1 expression. The role of Prdm5 in the cornea was further investigated by procuring Prdm5-/- mice. Those were found to have significantly thinner corneas at 1 and 3 months old. Primary corneal keratocytes isolated from wild type and homozygous mutant mice showing reduced expression of Col1a1, Col5a1 and Fn1 (encoding fibronectin) in mutant keratocytes. Overall, these results supported a role for the variant rs3118515 in altering expression of COL5A1 in corneal stroma cells by a mechanism involving transcription factors AP1 and PRDM5.
Additional file 2 of Genetic diversity and population divergence of Leonurus japonicus and its distribution dynamic changes from the last interglacial to the present in China
Creators: name: Wang, Yiheng
name: Wang, Jingyi
name: Garran, Thomas Avery
name: Liu, Hangxiu
name: Lin, Huaibin
name: Luo, Jun
name: Yuan, Qingjun
name: Sun, Jiahui
name: Dong, Wenpan
name: Guo, Lanping
Publisher: name: figshare
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 2
Additional file 6 of Genetic diversity and population divergence of Leonurus japonicus and its distribution dynamic changes from the last interglacial to the present in China
Creators: name: Wang, Yiheng
name: Wang, Jingyi
name: Garran, Thomas Avery
name: Liu, Hangxiu
name: Lin, Huaibin
name: Luo, Jun
name: Yuan, Qingjun
name: Sun, Jiahui
name: Dong, Wenpan
name: Guo, Lanping
Publisher: name: figshare
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 6
Observations of track-like neutrino events with Baikal-GVD
Creators: name: Zaborov, Dmitry
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Baikal Gigaton Volume Detector (Baikal-GVD) is a km$^3$-scale neutrino detector currently under construction in Lake Baikal, Russia. The detector currently consists of 2304 optical modules arranged on 64 vertical strings. Further extension of the array is planned for March 2022. The data from the partially complete array have been analyzed using a $χ^2$-based track reconstruction algorithm. After suppression of the downward-going atmospheric muon background, a flux of upward-going neutrino events is observed, dominated by the atmospheric neutrinos. The observed flux is in good agreement with Monte Carlo predictions.
description: 8 pages, 5 figures, to be published in Proceedings of the 37th International Cosmic Ray Conference (ICRC-2021), 12-23 July 2021
Fast universal quantum control above the fault-tolerance threshold in silicon
Creators: name: Noiri, Akito
name: Takeda, Kenta
name: Nakajima, Takashi
name: Kobayashi, Takashi
name: Sammak, Amir
name: Scappucci, Giordano
name: Tarucha, Seigo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Fault-tolerant quantum computers which can solve hard problems rely on quantum error correction. One of the most promising error correction codes is the surface code, which requires universal gate fidelities exceeding the error correction threshold of 99 per cent. Among many qubit platforms, only superconducting circuits, trapped ions, and nitrogen-vacancy centers in diamond have delivered those requirements. Electron spin qubits in silicon are particularly promising for a large-scale quantum computer due to their nanofabrication capability, but the two-qubit gate fidelity has been limited to 98 per cent due to the slow operation.Here we demonstrate a two-qubit gate fidelity of 99.5 per cent, along with single-qubit gate fidelities of 99.8 per cent, in silicon spin qubits by fast electrical control using a micromagnet-induced gradient field and a tunable two-qubit coupling. We identify the condition of qubit rotation speed and coupling strength where we robustly achieve high-fidelity gates. We realize Deutsch-Jozsa and Grover search algorithms with high success rates using our universal gate set. Our results demonstrate the universal gate fidelity beyond the fault-tolerance threshold and pave the way for scalable silicon quantum computers.
Measurements of the Semileptonic Decays $\Bb\to D\ell\nub$ and $\Bb\to D^*\ell\nub$ Using a Global Fit to $D X\ell\nub$ Final States
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Semileptonic $\bar{B}$ decays to $DX\ell\barν$ ($\ell=e$ or $mu$) are selected by reconstructing $D0\ell$ and $D^+\ell$ combinations from a sample of 230 million $Υ(4S) \to B\bar{B}$ decays recorded with the BaBar detector at the PEPII $e^+e^-$ collider at SLAC. A global fit to these samples in a 3-dimensional space of kinematic variables is used to determine the branching fractions $\mathcal{B}(B^- \to D0\ell\barν) = (2.34 \pm 0.03 \pm 0.13) %$ and $\mathcal{B}(B^- \to D^{*0}\ell\barν) = (5.40 \pm 0.02 \pm 0.21) %$,where the errors are statistical and systematic, respectively. The fit also determines form factor parameters in a HQET-based parameterization, resulting in $ρ_D2 = 1.20 \pm 0.04 \pm 0.07$ for $\bar{B} \to D\ell\barν$ and $ρ_{D^*}2 = 1.22 \pm 0.02 \pm 0.07$ for $\bar{B} \to D^*\ell\barν$ These values are used to obtain the product of the CKM matrix element $|V_{cb}|$ times the form factor at the zero recoil point for both $\bar{B} \to D\ell\barν$ decays, $\mathcal{G}(1)|V_{cb}| = (43.1 \pm 0.8 \pm 2.3)\times 10^{-3}$, and for $\bar{B} \to D^*\ell\barν$ decays, $\mathcal{F}(1)|V_{cb}| = (35.9 \pm 0.2 \pm 1.2)\times 10^{-3}$.
description: 18 pages, 5 figures, submitted to Physical Review D
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title: A double-sided elastostatic pressing technology of profiled powders blanks
Creators: name: ÐÑÐ·Ð½ÐµÑÐ¾Ð², ÐÐ°Ð²ÐµÐ»
name: ÐÑÐ¾ÑÑÐ¾ÑÐ¾Ð²Ð°, ÐÐ»ÐµÐºÑÐ°Ð½Ð´ÑÐ°
name: ÐÐµÐ¿ÐµÑÐ°Ð½, ÐÐ¸ÑÐ¸Ð»Ð»
name: ÐÐ°ÑÐ°ÑÐµÐ²ÑÐµÐ², ÐÐ»ÑÑ
name: "Ð¡Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ: Ð½Ð°ÑÐºÐ° Ð¸ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (13; 2024; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: ÐÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÑÐ¾ÑÐºÐ¸
ÐÐ¾Ð»Ð¸ÑÑÐµÑÐ°Ð½Ñ
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molds

description: Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð´Ð²ÑÑÑÑÐ¾ÑÐ¾Ð½Ð½ÐµÐ³Ð¾ ÑÐ»Ð°ÑÑÐ¾ÑÑÐ°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ (Ð­Ð¡Ð) Ð¿ÑÐ¾ÑÐ¸Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð·Ð°Ð³Ð¾ÑÐ¾Ð²Ð¾Ðº Ð¸Ð· Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð². ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¾Ð´Ð½Ð¾ÑÑÐ¾ÑÐ¾Ð½Ð½ÐµÐ³Ð¾ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° ÑÐ½Ð¸Ð²ÐµÑÑÐ°Ð»ÑÐ½ÑÑ Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿ÑÐµÑÑÐ°Ñ Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÐµÐ¹ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Â«Ð¿Ð»Ð°Ð²Ð°ÑÑÐ¸ÑÂ» Ð¿ÑÐµÑÑ-ÑÐ¾ÑÐ¼Ð°Ñ Ð¸ Ð½Ð° ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐµ Ð´Ð²ÑÑÑÑÐ¾ÑÐ¾Ð½Ð½ÐµÐ³Ð¾ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð²Ð°ÑÐ¸Ð°Ð½ÑÑ Ð¿ÑÐµÑÑ-ÑÐ¾ÑÐ¼, ÑÐµÐ°Ð»Ð¸Ð·ÑÑÑÐ¸Ñ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼ÑÑ ÑÑÐµÐ¼Ñ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð±ÑÐ°Ð·ÑÐ° Ð² Ð²Ð¸Ð´Ðµ ÑÑÐµÑÐ¶Ð½Ñ Ñ Ð±ÑÑÑÐ¾Ð¼. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð° Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÑ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ³Ð¾ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ Ð¼ÐµÑÐ¾Ð´Ð°, Ð·Ð°ÐºÐ»ÑÑÐ°ÑÑÐ°ÑÑÑ Ð² ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ð¸ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÑÑÐ°Ð½Ð¾Ð²Ð¾Ðº Ð´Ð»Ñ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐ¸Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹ ÑÐ»Ð¾Ð¶Ð½Ð¾Ð¹ ÑÐ¾ÑÐ¼Ñ.
description: The paper presents an analysis of the current state of the double-sided elastostatic pressing technology (ESP) of profiled powders blanks. The technology of single-sided pressing on universal hydraulic presses is compared with the technology of pressing in the "floating" molds and on a double-acting installation. Variants of molds implementing the studied pressing scheme have been developed. The results of pressing a sample in the form of a rod with a collar are presented. The necessity of further development of the method is shown, which consists in the creation of specialized installations for pressing the complex profiled products.
Vandrearbejder i kinesisk industri, 2007:Industriarbejdere eller landarbejdere i industrien
Creators: Jesper Willaing Zeuthen, Roskilde Universitet
Publisher: name: Rigsarkivet
Year: 2022

description: Formålet er at undersøge hvordan og i hvilket omfang Kinas land/by integrationspolitik i Chengdu indebærer styring ved differentiering.
Mean-Field and Non-Mean-Field Behaviors in Scale-free Networks with Random Boolean Dynamics
Creators: name: Silva, A. Castro e
name: da Silva, J. Kamphorst Leal
Publisher: name: arXiv
Year: 2009
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study two types of simplified Boolean dynamics over scale-free networks, both with synchronous update. Assigning only Boolean functions AND and XOR to the nodes with probability $1-p$ and $p$, respectively, we are able to analyze the density of 1's and the Hamming distance on the network by numerical simulations and by a mean-field approximation (annealed approximation). We show that the behavior is quite different if the node always enters in the dynamic as its own input (self-regulation) or not. The same conclusion holds for the Kauffman KN model. Moreover, the simulation results and the mean-field ones (i) agree well when there is no self-regulation, and (ii) disagree for small $p$ when self-regulation is present in the model.
description: 12 pages, 7 figures
Implementing the Cluster-Based Approach for the Competitiveness of the Rachaburi Orchid Cluster
Creators: name: Boon-Anan Phinaitrup
Publisher: name: School of Public Administration, National Instituteof Development Administration (NIDA)
Year: 2012
Subjects: cluster, small and mediument erprises, Ratchaburi Orchid cluster

description: 1, 10, Thai Journal of Public Administration
Chemical abundances in Seyfert galaxies -- VII. Direct abundance determination of neon based on optical and infrared emission lines
Creators: name: Armah, Mark
name: Dors, O. L.
name: Aydar, C. P.
name: Cardaci, M. V.
name: Hagele, G. F.
name: Feltre, Anna
name: Riffel, R.
name: Riffel, R. A.
name: Krabbe, A. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: For the first time, neon abundance has been derived in the narrow line region from a sample of Seyfert~2 nuclei. In view of this, we compiled from the literature fluxes of optical and infrared (IR) narrow emission lines for 35 Seyfert 2 nuclei in the local universe ($z < 0.06$). The relative intensities of emission lines were used to derive the ionic and total neon and oxygen abundances through electron temperature estimations ($T_{e}$-method). For the neon, abundance estimates were obtained by using both $T_{e}$-method and IR-method. Based on photoionization model results, we found a lower electron temperature [$t_{e}([Ne III])$] for the gas phase where the Ne$^{2+}$ is located in comparison with $t_{3}$ for the O$^{2+}$ ion. We find that the differences (D) between Ne$^{2+}$/H$^{+}$ ionic abundances calculated from IR-method and $T_{e}-$method (assuming $t_{3}$ in the Ne$^{2+}$/H$^{+}$ derivation) are similar to the derivations in star-forming regions (SFs) and they are reduced by a mean factor of $\sim3$ when $t_{e}([Ne III])$ is considered. We propose a semi-empirical Ionization Correction Factor (ICF) for the neon, based on [Ne II]12.81$μ$m, [\ion{Ne}{iii}]15.56$μ$m and oxygen ionic abundance ratios. We find that the average Ne/H abundance for the Seyfert 2s sample is nearly 2 times higher than similar estimate for SFs. Finally, for the very high metallicity regime (i.e. [$12+log(O/H) > 8.80$]) an increase in Ne/O with O/H is found, which likely indicates secondary stellar production for the neon.
description: Accepted for publication by MNRAS
Quantum graphs: self-adjoint, and yet exhibiting a nontrivial $\mathcal{PT}$-symmetry
Creators: name: Exner, Pavel
name: Tater, Milos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Spectral Theory (math.SP)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81Q35, 35J10

description: We demonstrate that a quantum graph exhibits a $\mathcal{PT}$-symmetry provided the coefficients in the condition describing the wave function matching at the vertices are circulant matrices; this symmetry is nontrivial if they are not invariant with respect to transposition. We also illustrate how the transport properties of such graphs are significantly influenced by the presence or absence of the non-Robin component of the coupling.
description: 11 pages, four figures
Hidden solitons in the Zabusky-Kruskal experiment: Analysis using the periodic, inverse scattering transform
Creators: name: Christov, Ivan C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 35Q51, 35P25

description: Recent numerical work on the Zabusky--Kruskal experiment has revealed, amongst other things, the existence of hidden solitons in the wave profile. Here, using Osborne's nonlinear Fourier analysis, which is based on the periodic, inverse scattering transform, the hidden soliton hypothesis is corroborated, and the \emph{exact} number of solitons, their amplitudes and their reference level is computed. Other "less nonlinear" oscillation modes, which are not solitons, are also found to have nontrivial energy contributions over certain ranges of the dispersion parameter. In addition, the reference level is found to be a non-monotone function of the dispersion parameter. Finally, in the case of large dispersion, we show that the one-term nonlinear Fourier series yields a very accurate approximate solution in terms of Jacobian elliptic functions.
description: 10 pages, 4 figures (9 images); v2: minor revision, version accepted for publication in Math. Comput. Simulat
Reduced heat flow in light water (H2O) due to heavy water (D2O)
Creators: name: Gorman, William R.
name: Brownridge, James D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The flow of heat, from top to bottom, in a column of light water can be decreased by over 1000% with the addition of heavy water. A column of light water cools from 25 C to 0 C in 11 hours, however, with the addition of heavy water it takes more than 100 hours. There is a concentration dependence where the cooling time increases as the concentration of added (D2O) increases, with a near maximum being reached with as little as 2% of (D2O) added. This phenomenon will not occur if the water is mixed after the heavy water is added.
description: 18 pages, 22 figures, PDF
Decoherence and thermalization of a pure quantum state in quantum field theory
Creators: name: Giraud, Alexandre
name: Serreau, Julien
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the real-time evolution of a self-interacting O(N) scalar field initially prepared in a pure quantum state. We present a complete solution of the nonequilibrium quantum dynamics from a 1/N-expansion of the two-particle-irreducible effective action at next-to-leading order, which includes scattering and memory effects. Restricting one's attention (or ability to measure) to a subset of the infinite hierarchy of correlation functions, the system is described by an effective (reduced) density matrix which, unlike the full density matrix, has a nontrivial time evolution. In particular, starting from a pure quantum state, we observe the loss of putity/coherence and, on longer time scales, thermalization of the reduced density matrix. We point out that the physics of decoherence is well described by classical statistical field theory.
description: 4 pages, 3 figures. To appear in Phys. Rev. Lett
Fitting ultracold resonances without a fit
Creators: name: Simoni, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a numerical procedure allowing one to extract Feshbach resonance parameters from numerical calculations without relying on approximate fitting procedures. Our approach is based on a simple decomposition of the reactance matrix in terms of poles and residual background contribution, and can be applied to the general situation of inelastic overlapping resonances. A simple lineshape for overlapping inelastic resonances, equivalent to known results in the particular cases of isolated and overlapping elastic features, is also rigorously derived.
description: 16 pages, 5 figures
Magnetoconductance and photoresponse properties of disordered NbTiN films
Creators: name: Sidorova, M.
name: Semenov, A.
name: Huebers, H. -W.
name: Gyger, S.
name: Steinhauer, S.
name: Zhang, X.
name: Schilling, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on the study of phonon properties and electron-phonon coupling in thin NbTiN films, which are intensively exploited in superconducting devices. Studied NbTiN films with thicknesses less than 10~nm are disordered with respect to electron transport, the Ioffe-Regel parameter of $k_F l_e = 2.5-3.0$ ($k_F$ is the Fermi wave vector and $l_e$ is the electron mean free path), and inelastic electron-phonon interaction, the product $q_T l_e \ll 1$ ($q_T$ is the wave vector of a thermal phonon). By means of magnetoconductance and photoresponse techniques, we derived the inelastic electron-phonon scattering rate $1/τ_{e-ph}$ and determined sound velocities and phonon heat capacities. In the temperature range from 12 to 20~K, the scattering rate varies with temperature as $1/τ_{e-ph}\propto T^{3.45\pm0.05}$; its value extrapolated to 10~K amounts to approximately 16~ps. Making a comparative analysis of our films and other films used in superconducting devices, such as polycrystalline granular NbN and amorphous WSi, we found a systematic reduction of the sound velocity in all these films by about 50\% as compared to the corresponding bulk crystalline materials. A corresponding increase in the phonon heat capacities in all these films is, however, less than the Debye model predicts. We attribute these findings to reduced film dimensionality and film morphology.
Phase Transition in Ferromagnetic Ising Models with Non-Uniform External Magnetic Fields
Creators: name: Bissacot, Rodrigo
name: Cioletti, Leandro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82-XX, 82B05, 82B20, 82B26, 60-XX

description: In this article we study the phase transition phenomenon for the Ising model under the action of a non-uniform external magnetic field. We show that the Ising model on the hypercubic lattice with a summable magnetic field has a first-order phase transition and, for any positive (resp. negative) and bounded magnetic field, the model does not present the phase transition phenomenon whenever $\liminf h_i> 0$, where ${\bf h} = (h_i)_{i \in \Z^d}$ is the external magnetic field.
description: 11 pages. Published in Journal of Statistical Physics - 2010
On the absorption of X-ray bright broad absorption line quasars
Creators: name: Giustini, Margherita
name: Cappi, Massimo
name: Vignali, Cristian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Most X-ray studies of BALQSOs found significant (N_H~10^{22-24} cm^{-2}) intrinsic column densities of gas absorbing an underlying typical power-law continuum emission, in agreement with expectations from radiatively driven accretion disk wind models. However, direct spectral analysis was performed only on a limited number of bright sources. We investigate the X-ray emission of a large BALQSO sample at medium to high redshift (0.8 ~ 5 x 10^{22} cm^{-2}) even including the faintest sources analyzed through hardness ratio analysis. The mean photon index is Gamma~1.9, with no significant evolution with redshift. The alpha_ox are typical of radio-quiet broad line AGN, in contrast with the known (from previous X-ray studies) ``soft X-ray weakness'' of BALQSOs and in agreement with the lack of X-ray absorption. We found the low-Absorption Index (AI) subsample to host the lowest X-ray absorbing column densities of the entire sample. X-ray selected BALQSOs show lower X-ray absorption than purely optically selected ones, and soft X-ray weakness does not hold for any of them. Their outflows may be launched by different mechanisms than classical soft X-ray weak BALQSOs or they may be the tail of the already known population seen along a different line of sight, in both cases expanding the observational parameter space for their search and investigation.
description: Accepted by A&A. 20 pages, 10 figures, 5 tables. Appendices available in online edition. Typos corrected, two references added, improved figures
Levocetirizine/cetirizine levels in human milk – an observational, clinical study among breastfeeding women
Creators: name: Nordeng, Hedvig
Publisher: name: Zenodo
Year: 2022
Subjects: lactation
breastfeeding

description: Protocol for an observational human lactation study conducted to detect (levo)cetirizine levels in breastfeeding women and monitor adverse events in nursing infants. In total, 25 to 40 lactating women who meet all inclusion criteria and none of the exclusion criteria will be recruited. The study is conducted as a demonstration project in WP4 of the IMI ConcePTION project. Funding: IMI2 821520 - ConcePTION
Alignment of the ALICE Inner Tracking System with cosmic-ray tracks
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: ALICE (A Large Ion Collider Experiment) is the LHC (Large Hadron Collider) experiment devoted to investigating the strongly interacting matter created in nucleus-nucleus collisions at the LHC energies. The ALICE ITS, Inner Tracking System, consists of six cylindrical layers of silicon detectors with three different technologies; in the outward direction: two layers of pixel detectors, two layers each of drift, and strip detectors. The number of parameters to be determined in the spatial alignment of the 2198 sensor modules of the ITS is about 13,000. The target alignment precision is well below 10 micron in some cases (pixels). The sources of alignment information include survey measurements, and the reconstructed tracks from cosmic rays and from proton-proton collisions. The main track-based alignment method uses the Millepede global approach. An iterative local method was developed and used as well. We present the results obtained for the ITS alignment using about 10^5 charged tracks from cosmic rays that have been collected during summer 2008, with the ALICE solenoidal magnet switched off.
description: 37 pages, 15 captioned figures, 1 table, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3907
A new approach for probing circumbinary disks
Creators: name: Hayasaki, Kimitake
name: Okazaki, Atsuo T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Circumbinary disks are considered to exist in a wide variety of astrophysical objects, e.g., young binary stars, protoplanetary systems, and massive binary black hole systems in active galactic nuclei (AGNs). However, there is no definite evidence for the circumbinary disk except for some in a few young binary star systems. In this Letter, we study possible oscillation modes in circumbinary disks around eccentric and circular binaries. We find that progarde, nonaxisymmetric waves are induced in the inner part of the circumbinary disk by the tidal potential of the binary. Such waves would cause variabilities in emission line profiles from circumbinary disks. Because of prograde precession of the waves, the distance between each component of the binary and the inner edge of the circumbinary disk varies with the beat period between the precession period of the wave and the binary orbital period. As a result, light curves from the circumbinary disks are also expected to vary with the same period. The current study thus provides a new method to detect circumbinary disks in various astrophysical systems.
description: Accepted for publication in ApJ Letters (3/Dec/2008), 4pages, 1figure