cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
State-dependent driving: A route to non-equilibrium stationary states
Creators: name: Das, Soumen
name: Ghosh, Shankar
name: Gupta, Shamik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study three different experiments that involve dry friction and periodic driving, and which employ both single and many-particle systems. These experimental set-ups, besides providing a playground for investigation of frictional effects, are relevant in broad areas of science and engineering. Across all these experiments, we monitor the dynamics of objects placed on a substrate that is being moved in a horizontal manner. The driving couples to the degrees of freedom of the substrate, and this coupling in turn influences the motion of the objects. Our experimental findings suggest emergence of stationary-states with non-trivial features. We invoke a minimalistic phenomenological model to explain our experimental findings. Within our model, we treat the injection of energy into the system to be dependent on its dynamical state, whereby energy injection is allowed only when the system is in its suitable-friction state. Our phenomenological model is built on the fact that such a state-dependent driving results in a force that repeatedly toggles the frictional states in time, and serves to explain our experimental findings.
description: 16 pages, 7 figures
Three Cu(II) (R)-2-chloromandelato complexes generated from dipyridyl-type ligands with different spacer lengths: syntheses, crystal structures, and ferroelectric properties
Creators: name: Qi, Jin-Li
name: Ni, Sheng-Liang
name: Xu, Wei
name: Zheng, Yue-Qing
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: Three Cu(II) complexes, Cu2(bpy)(H2O)(Clma)2 (1), Cu2(bpe)(H2O)2(Clma)2 (2), and Cu(bpp)(Clma) (3), were synthesized (HClma = (R)-2-Chloromandelic acid, bpy = 4,4′-dipyridine, bpe = 1,2-di(4-pyridyl)ethylene, bpp = 1,3-di(4-pyridyl)propane). Complexes 1, 2, and 3 are constructed from 1-D coordination arrays generated from Cu2(H2O)(Clma)2, Cu2(H2O)2(Clma)2, and Cu2(Clma)2 moieties and linked through bpy, bpe, and bpp co-ligands, respectively. 1 and 2 are assembled into 3-D supramolecular networks via O–H⋯O hydrogen bonds with topology of (63)(69·8) and (412·63), respectively, and 3 is assembled into a 3-D architecture through C–H⋯O hydrogen bonds with topology of (43·63)(43)(44·65·8)(46·66·83). Compounds 1, 2, and 3 crystallized in acentric space groups P21, P1, and P21, which exhibit significant ferroelectricity (remnant polarization Pr = 0.008 μC cm−2, coercive field Ec = 21.4 kV cm−1, the spontaneous saturation polarization Ps = 0.167 μC cm−2 for 1, Pr = 0.183 μC cm−2, Ec = 1.69 kV cm−1, and Ps = 0.021 μC cm−2 for 3). Results from infrared and thermal analyses are also discussed.
First observation of MeV gamma-ray universe with bijective imaging spectroscopy using the Electron-Tracking Compton Telescope aboard SMILE-2+
Creators: name: Takada, Atsushi
name: Takemura, Taito
name: Yoshikawa, Kei
name: Mizumura, Yoshitaka
name: Ikeda, Tomonori
name: Nakamura, Yuta
name: Onozaka, Ken
name: Abe, Mitsuru
name: Hamaguchi, Kenji
name: Kubo, Hidetoshi
name: Kurosawa, Shunsuke
name: Miuchi, Kentaro
name: Saito, Kaname
name: Sawano, Tatsuya
name: Tanimori, Toru
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: MeV gamma-rays provide a unique window for the direct measurement of line emissions from radioisotopes, but observations have made little significant progress after COMPTEL/{\it CGRO}. To observe celestial objects in this band, we are developing an electron-tracking Compton camera (ETCC), which realizes both bijective imaging spectroscopy and efficient background reduction gleaned from the recoil electron track information. The energy spectrum of the observation target can then be obtained by a simple ON-OFF method using a correctly defined point spread function on the celestial sphere. The performance of celestial object observations was validated on the second balloon SMILE-2+ installed with an ETCC having a gaseous electron tracker with a volume of 30$\times$30$\times$30 cm$^3$. Gamma-rays from the Crab nebula were detected with a significance of 4.0$σ$ in the energy range 0.15--2.1 MeV with a live time of 5.1 h, as expected before launching. Additionally, the light curve clarified an enhancement of gamma-ray events generated in the Galactic center region, indicating that a significant proportion of the final remaining events are cosmic gamma rays. Independently, the observed intensity and time variation were consistent with the pre-launch estimates except in the Galactic center region. The estimates were based on the total background of extragalactic diffuse, atmospheric, and instrumental gamma-rays after accounting for the variations in the atmospheric depth and rigidity during the level flight. The Crab results and light curve strongly support our understanding of both the detection sensitivity and the background in real observations. This work promises significant advances in MeV gamma-ray astronomy.
Supplementary Material for Europium substituted cerium iron garnet thin films for silicon integrated nonreciprocal photonic device applications
Creators: name: Yang, Yucong
name: Zhang, Tianchi
name: Wu, Di
name: Wei, Zixuan
name: Wang, Junxian
name: Xie, Yunfei
name: Chen, Shuyao
name: Chen, Yizhi
name: Su, Jiejun
name: Qin, Jun
name: Liu, Tao
name: Bi, Lei
Publisher: name: AIP Publishing
Year: 2025
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: Ce element distribution
Digital twinning of building construction processes. Case study: A reinforced concrete cast-in structure
Creators: name: Chacón, Rolando
name: Posada, Hector
name: Ramonell, Carlos
name: Jungmann, Manuel
name: Hartmann, Timo
name: Khan, Rehan
name: Tomar, Rahul
Publisher: name: Elsevier BV
Year: 2024
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: concrete
subject: building construction processes
subject: construction site
subject: digital twin
subject: construction process

description: This paper summarizes the findings obtained during the development of information pipelines between a construction site and its corresponding digital twin. The case study is the construction of an office building in which independent information pipelines can track different aspects of the construction process and the aggregate result can assist managers in decision making in the form of a vaster entity: its digital twin. The digital twin prototype is designed as a recipient of information that mirror its physical building and its systems. The paper contributes with a real case in which these pipelines enable continuous monitoring and analysis of various basic parameters during construction. With a varied array of sensors installed, data was collected, organized and transmitted through a knowledge graph-based system to the digital twin dashboard. A dashboard is able to allocate many sources of data (from sensors, images or point clouds) but also, it helps visualizing data analysis that could help making informed decisions about the building during construction. The paper emphasizes the varied nature of data in construction sites as well as the importance of proper data channeling to enable multi-purpose, effective decision-making using the digital twin. Overall, the paper provides a real life insight that challenges massive implementation of digital twins within the existing construction sites for an office building. It also highlights its potential to improve productivity, resource efficiency, health and safety in construction environments. For this purpose, faced bottlenecks and challenges require refinements, more development and further research.
Study of lime and hemp concrete (LHC) – mix design, casting process and mechanical behaviors
Creators: name: Lecompte, T.
name: Tronet, P.
name: Picandet, V.
name: Baley, C.
Publisher: name: Academic Journal of Civil Engineering
Year: 2015

description: This paper deals with the mechanical behavior of lime and hemp composites. LHC blocks have been processed by compression in a rigid die at a relatively high compression pressure. It allows producing LHC with a high proportion of hemp shiv. New mechanical parameters are proposed to compare experimental results of this study with those of literature. This paper shows that a high pressure of compaction enhances the compressive strength, and can offset a lack of binder. Consequently, a new formula is proposed to predict the strength of LHC, depending on both the binder content and the compaction state of the shiv particles. It leads to some recommendations for the mix design of such composites.
description: Academic Journal of Civil Engineering, Vol 33 No 2 (2015): Special Issue - ICBBM 2015
Design and properties of mortar with seashells fine aggregates
Creators: name: Carro-López, D.
name: González-Fonteboa, B.
name: Martínez, C.
name: Martínez-Abella, F.
name: Seara-Paz, S.
name: Rodríguez, R.
Publisher: name: Academic Journal of Civil Engineering
Year: 2015

description: In this research coating mortars with partial replacement of conventional sand with mussel shell sand are investigated. Three different binders have been used to study the influence of mussel shell sand: cement, aerial lime paste and clay. The cement binder has been used because it is the most use done in conventional construction. On the other hand, lime and clay have been used because they are in accordance with bio-construction principles. Reference mortars and mortars with mussel shell sand as a substitute of conventional sand in different rates: 25%, 50%, 75% and 100%, have been tested. Results show that the use of mussel shell sand increases consistency and reduces compressive strength. These effects are more remarkable as higher the substitution rate is.
description: Academic Journal of Civil Engineering, Vol 33 No 2 (2015): Special Issue - ICBBM 2015
How to Promote Your Article
Creators: name: Ebrahim, Nader Ale
Publisher: name: figshare
Year: 2014
Subjects: Education

description: Writing an article for online distribution in a way that maximized the chances of citation hits, is different from preparing one for print journals in some small, but important, respects. To be cited, articles have to be visible in an electronic environment. Therefore, publishing a high quality paper in scientific journals will be a halfway of receiving citation in the future. The rest of the way is advertising and disseminating the publications by using the proper “Research Tools”. Familiarity with the tools allows the researcher to increase his/her h-index in the short time. This article provides a list of simple yet effective ways to promote your publications
Performance of a hybrid concrete structure with natural fibre reinforcements
Creators: name: Yan, L.
Publisher: name: Academic Journal of Civil Engineering
Year: 2015

description: The use of natural fibres as reinforcement of concrete will be a significant step to have a sustainable construction industry. In this study, a hybrid concrete structure reinforced with natural fibre and natural fibre reinforced polymer composite was introduced, namely, flax fabric reinforced polymer composite (FFRP) tube encased coir fibre reinforced concrete (CFRC), termed as FFRP-CFRC. The compressive and flexural performance of this natural FFRP-CFRC structure were investigated under axial compression and four-point bending. In addition, the effect of ultraviolet radiation and water spray ageing (1500 h exposure) on the mechanical properties of FFRP composites was investigated to study the durability of FFRP composites for civil engineering application. The test results indicate that in axial compression, the use of natural FFRP tube increased the compressive strength and ductility of concrete remarkably. In flexure, the FFRP tube enhanced the lateral load carrying capacity concrete significantly. Coir fiber inclusion changed the failure mode of concrete to be ductile. The ageing conditions cause severe degradation in the tensile and flexural properties of FFRP composites, which was induced by the degradation in flax fibre and polymer matrix interfacial bonding. Overall, this study shows that the hybrid structure has the potential to be light and environmentally-friendly structure for infrastructure application. However, how to improve the durability of FFRP composites is a critical issue which should be considered in the future study.
description: Academic Journal of Civil Engineering, Vol 33 No 2 (2015): Special Issue - ICBBM 2015
Utilizing least squares variance component estimation to combine multi-GNSS clock offsets
Creators: name: Mansur, Gustavo
name: Brack, Andreas
name: Sakic, Pierre
name: Männel, Benjamin
name: Schuh, Harald
Publisher: name: Springer Science and Business Media LLC
Year: 2024
Subjects: subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften
subject: Multi-GNSS
subject: clock combination
subject: variance component estimation
subject: clock bias
subject: clock offset

description: The International GNSS Service (IGS) provides combined satellite and station clock products, which are generated from the individual clock solutions produced by the analysis centers (ACs). Combinations for GPS and GLONASS are currently available, but there is still a lack of combined products for the new constellations such as Galileo, BeiDou, and QZSS. This study presents a combination framework based on least squares variance component estimation using the ACs’ aligned clock solutions. We present the various alignments required to harmonize the solutions from the ACs, namely the radial correction derived from the differences of the associated orbits, the alignment of the AC clocks to compensate for different reference clocks within each AC solution, and the inter-system bias (ISB) alignment to correct for different AC ISB definitions when multiple constellations are used. The combination scheme is tested with IGS MGEX and repro3 products. The RMS computed between the combined product and the aligned ACs’ solutions differ for each constellation, where the lowest values are obtained for Galileo and GPS with on average below 45 psec (13 mm) and reaching more than 150 psec (45 mm) for QZSS. The same behavior is repeated when the process is performed with the repro3 products. A clock and orbit combination validation is done using precise point positioning (PPP) that shows ionosphere-free phase residuals below 10 mm for all constellations, comparable with the AC solutions that are in the same level.
Determination of 2-methoxy-3-alkylpyrazines in wine by gas chromatography/mass spectrometry
Creators: name: Harris, R. L. N.
name: Lacey, M. J.
name: Brown, W. V.
name: Allen, M. S.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: 2-Methoxy-3-alkylpyrazines have been isolated for the first time from a Sauvignon blanc wine by using a combination of distillation or headspace sampling and trapping by an ion-exchange resin. 2-Methoxy-3-isobutylpyrazine has been identified by gas chromatography/mass spectrometry as the major methoxypyrazine in a New Zealand Sauvignon blanc and, with the aid of 2-methoxy-d3-3-isobutylpyrazine as internal standard, its concentration has been determined as 35 ± 2 ppt. The method can be applied to small wine samples (< 60 ml) and detection limits are below the olfactory thresholds.
description: VITIS - Journal of Grapevine Research, Vol. 26 No. 4 (1987): VITIS
Optical effects of domain walls
Creators: name: Khoze, Valentin V.
name: Milne, Daniel L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Domain walls arise in theories where there is spontaneous symmetry breaking of a discrete symmetry such as $\mathbb{Z}_{N}$ and are a feature of many BSM models. In this work we consider the possibility of detecting domain walls through their optical effects and specify three different methods of coupling domain walls to the photon. We consider the effects of these couplings in the context of gravitational wave detectors, such as LIGO, and examine the sensitivity of these experiments to domain wall effects. In cases where gravitational wave detectors are not sensitive we examine our results in the context of axion experiments and show how effects of passing domain walls can be detected at interferometers searching for an axion signal.
description: v4: Added discussion on effects caused by change in Bohr radius, matches version accepted for publication in Physics Letters B
Traveling waves of an FKPP-type model for self-organized growth
Creators: name: Kreten, Florian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 92C15 (Primary) 35C07, 35K57, 34C14 (Secondary)

description: We consider a reaction-diffusion system of densities of two types of particles, introduced by Edouard Hannezo et al. in the context of branching morphogenesis. It is a simple model for a growth process: active, branching particles form the growing boundary layer of an otherwise static tissue, represented by inactive particles (Cell, 171(1):242-255.e27, 2017). The active particles diffuse, branch and become irreversibly inactive upon collision with a particle of arbitrary type. In absence of active particles, this system is in a steady state, without any a priori restriction on the amount of remaining inactive particles. Thus, while related to the well-studied FKPP-equation, this system features a game-changing continuum of steady state solutions, where each corresponds to a possible outcome of the growth process. However, simulations indicate that this system self-organizes: traveling fronts with fixed shape arise under a wide range of initial data. In the present work, we describe all positive and bounded traveling wave solutions, and obtain necessary and sufficient conditions for their existence. We find a surprisingly simple symmetry in the pairs of steady states which are joined via heteroclinic wave orbits. Our approach is constructive: we first prove the existence of almost constant solutions and then extend our results via a continuity argument along the continuum of limiting points.
description: 43 pages, 7 figures
The Pattern Speed of the Milky Way Bar/Bulge from VIRAC & Gaia
Creators: name: Clarke, Jonathan
name: Gerhard, Ortwin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We compare distance resolved, absolute proper motions in the Milky Way bar/bulge region to a grid of made-to-measure dynamical models with well defined pattern speeds. The data are obtained by combining the relative VVV Infrared Astrometric Catalog v1 proper motions with the Gaia DR2 absolute reference frame. We undertake a comprehensive analysis of the various errors in our comparison, from both the data and the models, and allow for additional, unknown, contributions by using an outlier-tolerant likelihood function to evaluate the best fitting model. We quantify systematic effects such as the region of data included in the comparison, the possible overlap from spiral arms, and the choice of synthetic luminosity function and bar angle used to predict the data from the models. Resulting variations in the best-fit parameters are included in their final errors. We thus measure the bar pattern speed to be $Ω_b=33.29\pm1.81 \mathrm{km \, s^{-1} \, kpc^{-1}}$ and the azimuthal solar velocity to be $V_{ϕ,\,\odot} = 251.31 \pm 1.95 \mathrm{km \, s^{-1}}$. These values, when combined with recent measurements of the Galactic rotation curve, yield the distance of corotation, 6.5 < $R_{CR}$ [kpc] < 7.5, the outer Lindblad resonance (OLR), 10.7 < $R_{OLR}$ [kpc] < 12.4, and the higher order, m = 4, OLR, 8.7 < $R_{{OLR}_4}$ [kpc] < 10.0. The measured pattern speed provides strong evidence for the "long-slow" bar scenario.
description: Published in MNRAS, 19 pages, 17 figures Note: Model grid slightly altered from original preprint. Measurement of the pattern speed adjusted down slightly
The effect of addition of sucrose and aeration to grape must on growth and metabolic activity of Saccharomyces cerevisiae
Creators: name: Ribéreau-Gayon, P.
name: Larue, F.
name: Chaumet, P.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: Supplementation of grape must with sucrose has an inhibitory effect on yeast growth, but increases the catabolic activity of yeast populations. It is best done after the initial phase of yeast growth (between days 2 and 4), simultaneously to a short period of aeration which stimulates yeast growth and rate of sugar utilisation.
description: VITIS - Journal of Grapevine Research, Vol. 26 No. 4 (1987): VITIS
Le développement de l'embryon zygotique chez Vitis vinifera L.
Creators: name: Vallade, J.
name: Alabouvette, J.
name: Chabbert, A.-M.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: The development of the zygotic embryo of Vitis vinifera L. The embryonic development of Vitis vinifera from the zygote to the mature embryo has been studied. The planes of early cell divisions are irregular, thus leading to formation of a large globular proembryo comprising about 1500 undifferentiated cells above a bulky suspensor. Organogenesis of the embryo sta rts with initiation of the cotyledons and constitution of the radicular meristem. The intercotyledonary zone, future shoot apex, is formed by about 300 cells. In this zone, cells remain undifferentiated throughout embryogenesis; its organization begins to be completed only after germination. The radicular meristem, on the other hand, is functioning from the embryonic stage. The meristem of the embryonic radicle and the meristem of the adventitious root are identical in their ('open' type) organization.
description: VITIS - Journal of Grapevine Research, Vol. 26 No. 4 (1987): VITIS
Autonomous Coordinated Control of the Light Guide for Positioning in Vitreoretinal Surgery
Creators: name: Koyama, Yuki
name: Marinho, Murilo M.
name: Mitsuishi, Mamoru
name: Harada, Kanako
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Vitreoretinal surgery is challenging even for expert surgeons owing to the delicate target tissues and the diminutive workspace in the retina. In addition to improved dexterity and accuracy, robot assistance allows for (partial) task automation. In this work, we propose a strategy to automate the motion of the light guide with respect to the surgical instrument. This automation allows the instrument's shadow to always be inside the microscopic view, which is an important cue for the accurate positioning of the instrument in the retina. We show simulations and experiments demonstrating that the proposed strategy is effective in a 700-point grid in the retina of a surgical phantom. Furthermore, we integrated the proposed strategy with image processing and succeeded in positioning the surgical instrument's tip in the retina, relying on only the robot's geometric information and microscopic images.
description: Accepted on T-MRB 2022, 16 pages
Necrosis in grapevine buds (Vitis vinifera cv. Queen of Vineyard) III. Endogenous gibberellin levels in leaves and buds
Creators: name: Lavee, S.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: The endogenous content of free and bound gibberellins (GA) in leaves and buds of Queen of Vineyard grapevines was determined. Lateral buds on shoots from vigorous vines had about double the free GA activity of buds from less vigorous vines. No difference in the activity of bound GA was found. The GA content in the leaves of Queen of Vineyard was uniform, regardless of the vigor of the plants. The relation between vigor, GA content and bud necrosis in Queen of Vineyard vines is discussed and a causal dependence is suggested.
description: VITIS - Journal of Grapevine Research, Vol. 26 No. 4 (1987): VITIS
Terpene concentrations and wine quality of Vitis vinifera L. cv. Gewürztraminer as affected by grape maturity and cellar
Creators: name: Marais, J.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: The effect of grape maturity and juice treatments, namely skin-contact and heat treatment, on individual free terpene concentrations in Gewürztraminer juices and wines, as weil as on wine qualjty, was investigated. Total free volatile terpenes and total potentially volatile terpenes were also monitored during ripening of the grapes. Linalool, hotrienol, a -terpineol, citronellol, nerol, geraniol, diendiol-1, trans-geranic acid and the furan linalool oxides were analysed gas chromatographically. Wirre quality characteristics, such as fruitiness/ester-like, spiciness/terpene-like and overall wine quality of the wirres were evaluated sensorially. An increase in grape maturity caused marked increases in total bound terpene, as weil as in most individual terpene concentrations. Skin-contact for 4 and 15 h, respectively, and a combined treatment of 15 h skin-contact and heat treatment caused significant increases in the concentrations of the majority of terpenes analysed. Heat treatment resulted in decreases in geraniol, nerol and citronellol concentrations. The combined skin-contact and heat treatment resulted in higher intensities of fruitiness and spiciness, as weil as overall wine quality.
description: VITIS - Journal of Grapevine Research, Vol. 26 No. 4 (1987): VITIS
Efficiently Fuelling a Quantum Engine with Incompatible Measurements
Creators: name: Manikandan, Sreenath K.
name: Elouard, Cyril
name: Murch, Kater W.
name: Auffèves, Alexia
name: Jordan, Andrew N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a quantum harmonic oscillator measurement engine fueled by simultaneous quantum measurements of the non-commuting position and momentum quadratures of the quantum oscillator. The engine extracts work by moving the harmonic trap suddenly, conditioned on the measurement outcomes. We present two protocols for work extraction, respectively based on single-shot and time-continuous quantum measurements. In the single-shot limit, the oscillator is measured in a coherent state basis; the measurement adds an average of one quantum of energy to the oscillator, which is then extracted in the feedback step. In the time-continuous limit, continuous weak quantum measurements of both position and momentum of the quantum oscillator result in a coherent state, whose coordinates diffuse in time. We relate the extractable work to the noise added by quadrature measurements, and present exact results for the work distribution at arbitrary finite time. Both protocols can achieve unit work conversion efficiency in principle.
description: 13 pages, 5 figures
Enhancement of lime-hemp concrete properties using different manufacturing technologies
Creators: name: Sinka, M.
name: Radina, L.
name: Sahmenko, G.
name: Korjakins, A.
name: Bajare, D.
Publisher: name: Academic Journal of Civil Engineering
Year: 2015

description: The EU directive 2010/31/EU – sets goals to reduce CO2 emission levels by 20% until year 2020. As primary energy for households and construction industry both are among the largest manufacturers of CO2, a building material that can positively impact both these industries is topical. A lime-hemp concrete (LHC) is a material with negative CO2 balance, but to achieve the goals set in EU directive a more industrialized product, that can also be used in insulation of existing buildings is needed, so methods of LHC slab and block manufacture are tested in this paper. Eight different types of hemp shives are taken and twelve LHC mixes are prepared to assess the importance of hemp granulometrical distribution. To measure the effect of different preparation techniques mixes in two different mixers – gravity and forced action – were prepared to test the superiority of the latter as it is widely used in LHC production. Also different drying methods – natural, forced with temperature at various stages and with increased moisture – were tested. As well as various hydraulic additives were tried in order to increase the mechanical properties of the LHC. After complete drying, physical and mechanical properties - density, thermal conductivity, compressive and flexural strength - were determined and compared to assess the most suitable materials and manufacture technologies for LHC blocks. Also a reaction to fire test were performed for one of the samples. The results allow to better understand the principles of how the material works and how it`s properties can be enhanced with various manufacture techniques. The results suggest that LHC blocks have the necessary properties and potential to become widely used in improvement of thermal insulation of existing buildings.
description: Academic Journal of Civil Engineering, Vol 33 No 2 (2015): Special Issue - ICBBM 2015
Quantifying uncertainties in crystal electric field Hamiltonian fits to neutron data
Creators: name: Scheie, Allen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We systematically examine uncertainties from fitting rare earth single-ion crystal electric field (CEF) Hamiltonians to inelastic neutron scattering data. Using pyrochlore and delafossite structures as test cases, we find that uncertainty in CEF parameters can be large despite visually excellent fits. These results show Yb$^{3+}$ compounds have particularly large $g$-tensor uncertainty because of the few available peaks. In such cases, additional constraints are necessary for meaningful fits.
description: 12 pages, 5 figures
Optimal Transport for Unsupervised Denoising Learning
Creators: name: Wang, Wei
name: Wen, Fei
name: Yan, Zeyu
name: Liu, Peilin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Recently, much progress has been made in unsupervised denoising learning. However, existing methods more or less rely on some assumptions on the signal and/or degradation model, which limits their practical performance. How to construct an optimal criterion for unsupervised denoising learning without any prior knowledge on the degradation model is still an open question. Toward answering this question, this work proposes a criterion for unsupervised denoising learning based on the optimal transport theory. This criterion has favorable properties, e.g., approximately maximal preservation of the information of the signal, whilst achieving perceptual reconstruction. Furthermore, though a relaxed unconstrained formulation is used in practical implementation, we prove that the relaxed formulation in theory has the same solution as the original constrained formulation. Experiments on synthetic and real-world data, including realistic photographic, microscopy, depth, and raw depth images, demonstrate that the proposed method even compares favorably with supervised methods, e.g., approaching the PSNR of supervised methods while having better perceptual quality. Particularly, for spatially correlated noise and realistic microscopy images, the proposed method not only achieves better perceptual quality but also has higher PSNR than supervised methods. Besides, it shows remarkable superiority in harsh practical conditions with complex noise, e.g., raw depth images. Code is available at https://github.com/wangweiSJTU/OTUR.
description: Published in IEEE TPAMI, DOI: 10.1109/TPAMI.2022.3170155, https://ieeexplore.ieee.org/document/9763342 (40 pages, 33 figures)
Investigation of the mechanical performance and drying shrinkage of hemp concrete
Creators: name: Kashtanjeva, A.
name: Sonebi, M.
name: Amziane, S.
Publisher: name: Academic Journal of Civil Engineering
Year: 2015

description: The aim of this paper is to investigate the influence of the binder (lime) on the mechanical performance and drying shrinkage of hemp concrete. In order to study the mechanical behaviour, four mixes were made for: external rendering, roof insulation, floor insulation and shuttered walls. The variation of the lime was between 22 and 41 % of the global mass of the hemp concrete. Firstly, the intrinsic characteristics of the hemp shiv were measured through various tests, such as : the particle size which was determinate by scanning the particles and analysing with ImageJ, the water absorption. Secondly, the compressive strengths were determinate for all mixes at 7 and 28 days. The results show that higher compressive strengths were obtained when higher proportion of lime used. Finally the drying shrinkage of these mixes was measured in three curing conditions: the first type curing was in air with relative humidity 50% and temperature 20°C. The second type of curing was covering samples with aluminum foil with relative humidity 50% and temperature 20°C and the last type of curing was covering samples with plastic bags and to place outside with variable relative humidity and temperature. The results of drying shrinkage of hemp concrete increased when the proportion of lime reduced, and the drying shrinkage was higher for the samples kept without any cover.
description: Academic Journal of Civil Engineering, Vol 33 No 2 (2015): Special Issue - ICBBM 2015
Etude des caroténoїdes du raisin à maturité
Creators: name: Razungles, A.
name: Bayonove, C. L.
name: Cordonnier, R. E.
name: Baumes, R. L.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: High performance liquid chromatography was used to separate the carotenoidcompounds in grapevine be rries. By comparison with standards prepared by thin-layer-chromatography, β-carotene, lutein, 5,6-epoxy lutein, violaxanthin and neoxanthin were identified. Quantitative determination in 13 varie ties of Vitis vinifera L. gave evidence that, in mature berries , thecarotenoid contents can vary between 0.8 and 2.5 mg/kg of fresh we ight, according to variety. ß-carotene and lutein were present in larger quantities than the other carotenoids . The relative contents of each pigment were different from those of other fruits and resembled to those of leaves. Moreover, carotenoids were determined during 2 years in 2 varieties, Carignane and Sirah, grown in 8 different geographic sites.
description: VITIS - Journal of Grapevine Research, Vol. 26 No. 4 (1987): VITIS
Investigations on the influence of N fertilizer on resistance to powdery mildew (Oidium tuckeri) downy mildew (Plasmopara viticola) and on phytoalexin synthesis in different grapevine varieties
Creators: name: Bavaresco, L.
name: Eibach, R.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: 1-year-old grapevine cuttings (cvs. Gf Ga-58-30, Fr 993-60, Riesling, Kerner) were grown in a greenhouse in pots at four levels of nitrogen supply, in order to test their resistance to powdery mildew, downy mildew, and their possible stilbene synthesis. Our most significant findings are that: • increased rates of nitrogen supply decrease the degree of resistance against powdery and downy mildew and phytoalexin (stilbene) synthesis; • the hybrids (Gf Ga-58-30 and Fr 993-60) show a higher powdery and downy mildew resistance and a higher stiloene synthesis than the V. 11inifera varieties (Riesling and Kerner); • the amount of stilbene (resveratrol and E-viniferin) increases during the growing cycle.
description: VITIS - Journal of Grapevine Research, Vol. 26 No. 4 (1987): VITIS
Update on Parsley minor releases (openff-1.1.0, 1.2.0)
Creators: name: Jang, Hyesu
Publisher: name: Zenodo
Year: 2020
Subjects: Open Force Field Initiative
force fields
parsley
parameterization
QM dataset
improved peformance

description: This presentation is a part of the Open Force Field Virtual Meeting 2020. Abstract: Valence parameter re-fitting was done with (1) parameter definition adjustments and (2) newly designed QM training set and the validation of improved performance was carried out.
Bayesian quantum thermometry based on thermodynamic length
Creators: name: Jørgensen, Mathias R.
name: Kołodyński, Jan
name: Mehboudi, Mohammad
name: Perarnau-Llobet, Martí
name: Brask, Jonatan B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we propose a theory of temperature estimation of quantum systems, which is applicable in the regime of non-negligible prior temperature uncertainty and limited measurement data. In this regime the problem of establishing a well-defined measure of estimation precision becomes non-trivial, and furthermore the construction of a suitable criterion for optimal measurement design must be re-examined to account for the prior uncertainty. We propose a fully Bayesian approach to temperature estimation based on the concept of thermodynamic length, which solves both these problems. As an illustration of this framework, we consider thermal spin-$1/2$ particles and investigate the fundamental difference between two cases; on the one hand, when the spins are probing the temperature of a heat reservoir and, on the other, when the spins themselves constitute the sample.
description: 12 pages, 5 figures, published version
Coexistence of extended flat band and Kekulé order in Li-intercalated graphene
Creators: name: Bao, Changhua
name: Zhang, Hongyun
name: Wu, Xi
name: Zhou, Shaohua
name: Li, Qian
name: Yu, Pu
name: Li, Jia
name: Duan, Wenhui
name: Zhou, Shuyun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Doping graphene near the 1/4 filling to shift the extended flat band and van Hove singularity below E$_F$ has been highly desirable. Here we report the experimental observation of an extended flat band below E$_F$ in Li-intercalated graphene. Strong electron-phonon interaction is clearly identified by notable kinks in the band dispersion. Moreover, the evolution of the band structure upon Li intercalation shows that the extended flat band and the Kekulé order emerge simultaneously. Our work provides opportunities for investigating flat band related instabilities and its interplay with the Kekulé order
description: Kekul\'e-ordered graphene 3: Flat band
Experimental Bayesian estimation of quantum state preparation, measurement, and gate errors in multi-qubit devices
Creators: name: Landa, Haggai
name: Meirom, Dekel
name: Kanazawa, Naoki
name: Fitzpatrick, Mattias
name: Wood, Christopher J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a Bayesian method for the estimation of single qubit errors in quantum devices, and use it to characterize these errors on three 27-qubit superconducting qubit devices. We self-consistently estimate up to seven parameters of each qubit's state preparation, readout, and gate errors, analyze the stability of these errors as a function of time, and demonstrate easily implemented approaches for mitigating different errors before a quantum computation experiment. On the investigated devices we find non-negligible qubit reset errors that cannot be parametrized as a diagonal mixed state, but manifest as a coherent phase of a superposition with a small contribution from the qubit's excited state. We are able to mitigate such errors by applying pre-rotations on the initialized qubits, which we demonstrate with multi-qubit entangled states. Our results demonstrate that Bayesian estimation can resolve small parameters - including those pertaining to quantum gate errors - with a high relative accuracy, at a lower measurement cost as compared with standard characterization approaches.
description: v3 contains small corrections and clarifications
Dynamical analysis of $k$-essence cosmology in the light of Supernova Ia observations
Creators: name: Chatterjee, Anirban
name: Bandyopadhyay, Abhijit
name: Jana, Biswajit
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we analyse the JLA data on Supernova observations in the context of $k-$essence dark energy model with Lagrangian $L=VF(X)$, with a constant potential $V$ and the dynamical term $X = (1/2)\nabla_μϕ\nabla_νϕ= \dotϕ^2/2$ for a homogeneous scalar field $ϕ(t)$, in a flat FRW spacetime background. Scaling relations are used to extract temporal behaviour of different cosmological quantities and the form of the function $F(X)$ from the data. We explore how the parameters of the model, viz. value of the constant potential $V$ and a constant $C$ appearing in the emergent scaling relation, control the dynamics of the model in the context of JLA data, by setting up and analysing an equivalent dynamical system described by a set of autonomous equations.
description: 22 pages, 7 figures, 3 tables; Accepted for publication in European Physical Journal Plus
Exponential clustering of bipartite quantum entanglement at arbitrary temperatures
Creators: name: Kuwahara, Tomotaka
name: Saito, Keiji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Macroscopic quantum effects play central roles in the appearance of inexplicable phenomena in low-temperature quantum many-body physics. Such macroscopic quantumness is often evaluated using long-range entanglement, i.e., entanglement in the macroscopic length scale. The long-range entanglement not only characterizes the novel quantum phases but also serves as a critical resource for quantum computation. Thus, the problem that arises is under which conditions can the long-range entanglement be stable even at room temperatures. Here, we show that bi-partite long-range entanglement is unstable at arbitrary temperatures and exponentially decays with distance. Our theorem provides a no-go theorem on the existence of the long-range entanglement. The obtained results are consistent with the existing observations that long-range entanglement at non-zero temperatures can exist in topologically ordered phases, where tripartite correlations are dominant. In the derivation of our result, we introduce a quantum correlation defined by the convex roof of the standard correlation function. We establish an exponential clustering theorem for generic quantum many-body systems for such a quantum correlation at arbitrary temperatures, which yields our main result by relating quantum correlation to quantum entanglement. As a simple application of our analytical techniques, we derived a general limit on the Wigner-Yanase-Dyson skew information and the quantum Fisher information, which will attract significant attention in the field of quantum metrology. Our work reveals novel general aspects of low-temperature quantum physics and sheds light on the characterization of long-range entanglement.
description: 14 pages + 27 pages Appendix, 5 figures, [v.2] small improvement [v.3] published version
- A Philosophical Approach about »the Game, the Leisure and the Childhood«  -
Creators: name: Táriq Borges Godinho
Publisher: name: Zenodo
Year: 2022
Subjects: Philosophy, Childhood, Kids, Teaching, Teachers, Professors, Psychology, Pedagogy, Freedom, Duty, Obligations, Educational Psychology

description: Abstract: These are some thoughts about a documentary called »Tarja Branca »White Stripe«« and an analysis of the psychological, anthropological and economical aspects, within a philosophical perspective, of the possible pedagogy and perspective which teachers and professors should and could have in the classroom. I believe that this kind of approach would enrich the lives of those involved: teachers, professors, and students. The idea is to make education as freely as possible, ridden of obligations and duties taken out of desire.
Non-Abelian Wormholes Threaded by a Yang-Mills-Higgs Field beyond the BPS Limit
Creators: name: Chew, Xiao Yan
name: Lim, Kok-Geng
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct numerically the symmetric non-Abelian wormholes which are supported by a phantom field in the Einstein-Yang-Mills-Higgs theory beyond Bogomol'nyi-Prasad-Sommerfield (BPS) limit where the Higgs self-interaction constant $λ$ is non-vanishing. Analogous to the BPS limit, the probe limit is the Yang-Mills-Higgs field in the background of the Ellis wormhole when the gravity is switched off. In the presence of gravity, the wormhole solutions possess the Yang-Mills-Higgs hair where families of hairy wormholes solutions emerge from the Ellis wormhole when the gravitational coupling constant increases. In contrast to the BPS limit, the properties of wormholes change drastically when the gravitational strength approaches a critical value for a fixed $λ$. The hairy wormholes possess two types of double throat configurations. The first type is wormholes that develop the double throat when the gravitational strength almost approaches the critical value for lower $λ$, whereas the second type is wormholes that exhibit the double throat for a certain range of gravitational strength for higher $λ$. These two types of double throat configurations can coexist for a certain range of $λ$ where it is a transition process for first type double throat disappears gradually and the second type double throat becomes dominant.
description: 16 pages and 8 figures. Description of junction condition for wormhole throat has been added in a subsection and acknowledgement part has been updated for this latest version. arXiv admin note: text overlap with arXiv:2009.13334