cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uncovering Value Creation Factors in Organic Food Supply Chains
Creators: name: Mili, Samir
name: Arfa, Imen
Publisher: name: International Journal on Food System Dynamics
Year: 2020
Subjects: value creation; value drivers; business models; organic supply chain

description: Appropriate value creation processes play a key role in the success of organic food supply chains in terms of effective response to consumer requirements and sustainability goals. In this study we explore key drivers for value creation in the Spanish organic olive supply chain taken as representative case study. A business model survey was conducted with the participation of a highly qualified panel of experts to provide innovative options for value generation in the organic olive oil industry. Elicited expert judgements relate to the identification of the potential sources of adding value along the supply chain as a whole and among its different actors, as well as the factors that influence positively and negatively the adding-value formation. Findings contribute new ideas and pathways to develop innovative, effective and sustainable business models capable to generate value for companies, customers and the society as a whole. Results can be readily applied in real-world case studies to improve existing company business models.
description: International Journal on Food System Dynamics, Vol 11, No 5 (2020)
Scaling laws of the out-of-time-order correlators at the transition to the spontaneous $\cal{PT}$-symmetry breaking in a Floquet system
Creators: name: Zhao, Wen-Lei
name: Wang, Ru-Ru
name: Ke, Han
name: Liu, Jie
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate both numerically and analytically the dynamics of out-of-time-order correlators (OTOCs) in a non-Hermitian kicked rotor model, addressing the scaling laws of the time dependence of OTOCs at the transition to the spontaneous $\mathcal{PT}$ symmetry breaking. In the unbroken phase of $\mathcal{PT}$ symmetry, the OTOCs increase monotonically and eventually saturate with time, demonstrating the freezing of information scrambling. Just beyond the phase transition points, the OTOCs increase in the power-laws of time, with the exponent larger than two. Interestingly, the quadratic growth of OTOCs with time emerges when the system is far beyond the phase transition points. Above numerical findings have been validated by our theoretical analysis, which provides a general framework with important implications for Floquet engineering and the information scrambling in chaotic systems.
Lagrangian perturbations theory : Third-order solution for general dark energy models
Creators: name: Lee, Seokcheon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the Lagrangian perturbation theory of a general dark energy models with a constant equation of state, ω, and derive the fitting form of the fastest growing mode solutions up to the third order. These fitting forms are less than few % errors compared to the numerical calculation. We also correct the solutions of Einstein-de Sitter and the open universe with the proper initial conditions and the correct consideration for the growing mode solutions in order to compare with the general dark energy models. Even though these fitting forms are limited to the constant equation of state models, one can apply these to the time-varying ωby interpolating between models with the constant ω. These fitting forms can be used for the correct prediction for the two point correlation function and can give the proper predictions for the different dark energy models.
description: 25 pages, 12 figures, To match the version accepted by Physical Review D
Rate of Thixotropic Rebuilding of Cement Pastes Modified with Highly Purified Attapulgite Clays
Creators: name: Kawashima, Shiho
name: Chaouche, Mohend
name: Corr, David J.
name: Shah, Surendra P.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Engineering
subject: Civil engineering
subject: FOS: Civil engineering

description: This study investigates the influence of highly purified, nano-sized attapulgite clays on the rate of structural rebuilding of cement pastes. A shear rheological protocol is implemented that measures the rate of rebuilding of pastes after being broken down under shear and maintained under stress corresponding to the weight of the material. This simulates a real casting situation during which the concrete is initially in motion, then cast in place and measures how quickly it gains green strength immediately after placement. The rate of recovery for different resting times and preshear conditions are considered. The strain rate decay curves are fitted with a compressed exponential model to obtain relaxation time. The results show that the purified attapulgite clays significantly accelerate rate of recovery of pastes, especially at early ages. However, this accelerating effect diminishes at longer resting times as hydration mechanisms begin to dominate.
Binary collision approximation for multi-decorated granular chains
Creators: name: Bragança, Eduardo André de F.
name: Rosas, Alexandre
name: Lindenberg, Katja
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study pulse propagation along decorated tapered granular chains without precompression. Our goal is to generalize the results obtained in our previous work, by analyzing a decorated chain with an arbitrary number of small grains between the large ones. Making use of an effective description, where the original decorated tapered chain is replaced by a non-decorated tapered chain with effective masses interacting via an effective potential, and applying the binary collisions approximation, we calculate the residence time of the pulse on each effective large grain. We also present the comparison between the numerical integration of the equations of motion and our analytical predictions which show the agreement to be very good for the pulse velocity, albeit only qualitatively for the velocity of the grains.
CHADA Characterisation Data and description of a characterisation experiment for Impedance Spectroscopy for Organic Photovoltaic Samples
Creators: name: Al-Zubaidi R-Smith, Nawfal
name: Gramse, Georg
name: Kienberger, Ferry
name: Moerman, David
name: Douheret, Olivier
Publisher: name: Zenodo
Year: 2020
Subjects: Impedance Spectroscopy
organic photovoltaic
characterization data

description: This CHADA (Characterisation Data and description of a characterisation experiment) describes impedance spectroscopy experiments for organic photovoltaic samples
Quantum Anomalous Hall Effect in Magnetically Doped InAs/GaSb Quantum Wells
Creators: name: Wang, Qingze
name: Liu, Xin
name: Zhang, Hai-Jun
name: Samarth, Nitin
name: Zhang, Shou-Cheng
name: Liu, Chao-Xing
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The quantum anomalous Hall effect has recently been observed experimentally in thin films of Cr doped (Bi,Sb)$_2$Te$_3$ at a low temperature ($\sim$ 30mK). In this work, we propose realizing the quantum anomalous Hall effect in more conventional diluted magnetic semiconductors with doped InAs/GaSb type II quantum wells. Based on a four band model, we find an enhancement of the Curie temperature of ferromagnetism due to band edge singularities in the inverted regime of InAs/GaSb quantum wells. Below the Curie temperature, the quantum anomalous Hall effect is confirmed by the direct calculation of Hall conductance. The parameter regime for the quantum anomalous Hall phase is identified based on the eight-band Kane model. The high sample quality and strong exchange coupling make magnetically doped InAs/GaSb quantum wells good candidates for realizing the quantum anomalous Hall insulator at a high temperature.
Entfernung lang und kurzkettiger PFAS aus Trinkwasser mittels Hybridverfahren aus Aktivkohlefiltration und Anionentausch
Creators: name: Lesmeister, Lukas
Publisher: name: Zenodo
Year: 2023

description: Presentation given in German at the 15. AACHENER TAGUNG WASSERTECHNOLOGIE – Verfahren der Abwasserbehandlung und Wasseraufbereitung, 25th – 26th October 2023, Aachen, Germany by Lukas Lesmeister, DVGW-TZW. The presentation relates to the work carried out in the ZeroPM WP Technical Solutions and focuses on using activated carbon and ion exchange resins to clean PFAS contamianted water
Modeling of Nonlinear Signal Distortion in Fiber-Optical Networks
Creators: name: Johannisson, Pontus
name: Agrell, Erik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A low-complexity model for signal quality prediction in a nonlinear fiber-optical network is developed. The model, which builds on the Gaussian noise model, takes into account the signal degradation caused by a combination of chromatic dispersion, nonlinear signal distortion, and amplifier noise. The center frequencies, bandwidths, and transmit powers can be chosen independently for each channel, which makes the model suitable for analysis and optimization of resource allocation, routing, and scheduling in large-scale optical networks applying flexible-grid wavelength-division multiplexing.
Dust Eddington Ratios for Star-Forming Galaxy Subregions
Creators: name: Blackstone, Ian
name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radiation pressure on dust is an important feedback process around star clusters and may eject gas from bright sub-regions in star-forming galaxies. The Eddington ratio has previously been constructed for galaxy-averaged observations, individual star clusters, and Galactic HII regions. Here we assess the role of radiation pressure in thousands of sub-regions across two local star-forming galaxies, NGC 6946 and NGC 5194. Using a model for the spectral energy distribution from stellar population synthesis and realistic dust grain scattering and absorption, we compute flux- and radiation pressure-mean opacities and population-averaged optical depth $\langleτ_{\rm RP}\rangle$. Using Monte-Carlo calculations, we assess the momentum coupling through a dusty column to the stellar continuum. Optically-thin regions around young stellar populations are $30-50$ times super-Eddington. We calculate the Eddington ratio for the sub-regions including the local mass of young and old stars and HI and molecular gas. We compute the fraction of the total star formation that is currently super-Eddington, and provide an assessment of the role of radiation pressure in the dusty gas dynamics. Depending on the assumed height of the dusty gas and the age of the stellar population, we find that $\sim0-10$% of the sightlines are super-Eddington. These regions may be accelerated to $\sim5-15$ km/s by radiation pressure alone. Additionally, our results show that for beamed radiation the function $1-\exp(-\langleτ_{\rm RP}\rangle)$ is an excellent approximation to the momentum transfer. Opacities and optical depths are tabulated for SEDs of different stellar ages and for continuous star formation.
description: 17 pages, 9 figures
Der König und der Proletarier; [ca. 1845]
Creators: name: Freiligrath, Ferdinand
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel. - Gedicht. - Textanfang: Ein Dämpfer kam von Bieberich: stolz war die Furche, die er zog! Er quamt und räderte zu Thal, daß rechts und links die Brandung flog! ... - Ausg. 1846 m.d.T.: Von unten auf!
Influence of Purified Attapulgite Clays on the Adhesive Properties of Cement Pastes as Measured by the Tack Test
Creators: name: Kawashima, Shiho
name: Chaouche, Mohend
name: Corr, David J.
name: Shah, Surendra P.
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Engineering
subject: Civil engineering
subject: FOS: Civil engineering

description: This study evaluates the influence of small additions of highly-purified attapulgite clays (0.2% and 0.5% addition by mass of cement) on the adhesive properties of cement pastes. Adhesive properties are measured by the tack test, a novel method of evaluating the rheological properties of granular materials. To better understand the results of the tack test as they pertain to cementitious materials, a highly concentrated material that is evolving due to thixotropic rebuilding and hydration, they are supplemented with a measure of the viscoelastic properties over time obtained through low-amplitude oscillatory shear rheometry. The influence of different preshear conditions and resting times (age of paste) on the adhesive properties are determined. Results show the tack test to be a suitable method for obtaining useful information about the adhesive properties and structural evolution of the material in the fresh state.
Readme_casos
Creators: name: Humbe, Rojas Palacios Jorge
Publisher: name: Zenodo
Year: 2022
Subjects: modelo, sistemas, informacion, geografica, epidemiologia, R

description: README : CASOS COVID-19, EN COLEGIO DE CALI. Herramienta tecnologica de aplicacion en epidemiologia en edificios para investigar brotes de enfermedades
description: Presentado como comunicación en XL Reunión anual de SEE en San Sebastian, España.
CURRENT SCENARIO OF ORGANISED RETAIL INDUSTRY IN INDIA – STRUCTURE, GROWTH, TRENDS, PROSPECTS AND CHALLENGES
Creators: name: Sudeep B Chandramana
name: R Menaka
Publisher: name: figshare
Year: 2020
Subjects: subject: 150501 Consumer-Oriented Product or Service Development
subject: FOS: Economics and business
subject: 150503 Marketing Management (incl. Strategy and Customer Relations)
subject: 150504 Marketing Measurement
subject: 150505 Marketing Research Methodology
subject: 150506 Marketing Theory

description: The main objective of this paper is to gain insight into the developments of modern retail from theIndian context. This paper attempts to provide detailed account of the growth of retail industry inIndia with a futuristic perspective. It observes the growing awareness and brand consciousness amongpeople of different socio-economic classes in India and how the retail markets are going throughmajor growth. It also explores the upcoming trends in organised retail marketing. In India the growingmiddle class and the nearly untapped retail industry are the main attractive forces for global retailgiants planning to enter into emerging markets, which will in turn help the Indian Retail Industry togrow faster. This paper includes growth of retail sector in India, emerging trends, opportunities andalso highlights the challenges faced by the industry
teams.valid5
Creators: name: Dror, Tzipi
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The experiment is detailed in the plan. Data collection began on 29/1/24 (and has collected 698/2000 participants so far), but I have not yet looked at the data.
Cosmic rays can drive strong outflows from gas-rich high-redshift disk galaxies
Creators: name: Hanasz, Michal
name: Lesch, Harald
name: Naab, Thorsten
name: Gawryszczak, Artur
name: Kowalik, Kacper
name: Wóltański, Dominik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present simulations of the magnetized interstellar medium (ISM) in models of massive star forming (40 Msun / yr) disk galaxies with high gas surface densities (~100 Msun / pc^2) similar to observed star forming high-redshift disks. We assume that type II supernovae deposit 10 per cent of their energy into the ISM as cosmic rays and neglect the additional deposition of thermal energy or momentum. With a typical Galactic diffusion coefficient for CRs (3e28 cm^2 / s) we demonstrate that this process alone can trigger the local formation of a strong low density galactic wind maintaining vertically open field lines. Driven by the additional pressure gradient of the relativistic fluid the wind speed can exceed 1000 km/s, much higher than the escape velocity of the galaxy. The global mass loading, i.e. the ratio of the gas mass leaving the galactic disk in a wind to the star formation rate becomes of order unity once the system has settled into an equilibrium. We conclude that relativistic particles accelerated in supernova remnants alone provide a natural and efficient mechanism to trigger winds similar to observed mass-loaded galactic winds in high-redshift galaxies. These winds also help explaining the low efficiencies for the conversion of gas into stars in galaxies as well as the early enrichment of the intergalactic medium with metals. This mechanism can be at least of similar importance than the traditionally considered momentum feedback from massive stars and thermal and kinetic feedback from supernova explosions.
description: 5 pages, 5 figures, accepted in ApJL; corrected title
Analytic Model for Off-Axis GRB Afterglow Images -- Geometry Measurement and Implications for Measuring $H_0$
Creators: name: Govreen-Segal, Taya
name: Nakar, Ehud
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analytic model for measuring the jet core angle ($θ_c$) and viewing angle ($θ_{obs}$) of off-axis gamma-ray bursts independently of the jet angular structure outside of the core. We model the images of off-axis jets and using this model we show that $θ_{obs}$ and $θ_c$ can be measured using any two of the three following observables: the afterglow light curve, the flux-centroid motion, and the image width. The model is calibrated using 2D relativistic hydrodynamic simulations with a broad range of jet angular structures. We study the systematic errors due to the uncertainty in the jet structure and find that when using the light curve and centroid motion to determine $θ_{obs}$ and $θ_c$, our formulae can be accurate to a level of $5-10\%$ and $30\%$, respectively. In light of the Hubble tension, the systematic error in $\cosθ_{obs}$ in GRBs originating in a binary compact object merger is of special interest. We find that the systematic uncertainty on the measurement of $\cosθ_{obs}$ due to the unknown jet structure is smaller than $1.5\%$ for well-observed events. A similar error is expected if the microphysical parameters evolve at a level that is not easily detected by the light curve. Our result implies that this type of systematic uncertainty will not prevent measurement of $H_0$ to a level of $2\%$ with a sample of well-observed GW events with resolved afterglow image motion. Applying our model to the light curve and centroid motion observations of GW170817 we find $θ_{obs}=19.2\pm 2~°$ (1$σ$) and $θ_c=1.5-4~°$.
description: Accepted for publication in MNRAS. To match the published version, minor changes have been made to the text
Influence of Kaolinite Clay on the Chloride Diffusion Property of Cement-Based Materials
Creators: name: Fan, Yingfang
name: Zhang, Shiyi
name: Kawashima, Shiho
name: Shah, Surendra P.
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Engineering
subject: Civil engineering
subject: FOS: Civil engineering

description: To constitute blended cement concrete with high chloride diffusion resistivity, the effects of kaolinite clay on the mechanical properties and chloride diffusivity of cement paste, mortar and concrete were investigated. Ordinary Portland cement was partially replaced by kaolinite clay at 0%, 1%, 3%, 5%, 7% and 9% by weight of cement. All blended cement-based samples were prepared using a w/c ratio of 0.5. The microstructure, workability, early-age and long-term flexural strength of pastes were tested. The chloride diffusivity of mortars was measured. And the compressive strength and chloride diffusivity of concrete were measured. Mercury Intrusion Porosimetry (MIP) was employed to evaluate porosity characteristics. Scanning Electron Microscopy (SEM) and Energy Dispersive Spectra (EDS) were applied to investigate the micro morphology and chemical element distribution inside the cement matrix, and the rapid chloride migration (RCM) method was applied to test chloride diffusivity. The MIP test results show that the addition of clay improves the micro-pore structure in the cement paste and limits the introduction of chloride ions. SEM imaging suggests that the kaolinite clay is acting as both filler and accelerator of cement hydration. It is found that the addition of clay alters the water requirement of normal consistency and the setting time of cement, whereas it has little influence on the soundness. Compared to the control, the flexural strength of cement paste with 1% kaolinite clay increased by 30.41%, 39.04%, 36.27% and 38.32% at 1, 3, 7 and 90 days, respectively. The 28-day flexural strength only increased slightly. It is observed that the cement mortar with clay has lower chloride diffusion coefficient values compared to the plain mortar, the 28-day diffusion coefficient of chloride ion View the MathML source(DCl-) of cement mortar is decreased by 53.03% with 5% clay. The increase in compressive strength of the cement concrete with clay is 12%, 13.5%, and 28.4% compared to the control at 1%, 3% and 5% addition, respectively. The chloride diffusion coefficient of cement concrete decreases exponentially with the clay addition. The reduction of chloride diffusion coefficient of cement concrete is 8.68% and 18.87% at 1% and 5% clay, respectively. The 28-day compressive strength increases linearly with the chloride diffusion coefficient of the concrete.
Modelo SIG para la microepidemiologia espacial con R - readme
Creators: name: Humbe, Rojas Palacios Jorge
Publisher: name: Zenodo
Year: 2022
Subjects: modelo, sistemas, informacion, geografica, epidemiologia, R

description: Herramienta tecnologica de aplicacion en epidemiologia en edificios para investigar brotes de enfermedades
description: Presentado como comunicación en XL Reunión anual de SEE en San Sebastian, España.
MPEC 2023-G32 : DAILY ORBIT UPDATE (2023 April 5)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

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.
Majorization and Measures of Classical Polarization in Three Dimensions
Creators: name: Gamel, Omar
name: James, Daniel F. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There has been much discussion in the literature about rival measures of classical polarization in three dimensions. We gather and compare the various proposed measures of polarization, creating a geometric representation of the polarization state space in the process. We use majorization, previously used in quantum information, as a criterion to establish a partial ordering on the polarization state space. Using this criterion and other considerations, the most useful polarization measure in three dimensions is found to be one dependent on the Bloch vector decomposition of the polarization matrix.
description: 8 pages
ICJMM_Jan2015_Published_CURRENT SCENARIO OF ORGANISED RETAIL INDUSTRY.pdf
Creators: name: Sudeep B Chandramana
name: R Menaka
Publisher: name: figshare
Year: 2020
Subjects: subject: 150501 Consumer-Oriented Product or Service Development
subject: FOS: Economics and business
subject: 150503 Marketing Management (incl. Strategy and Customer Relations)
subject: 150504 Marketing Measurement
subject: 150505 Marketing Research Methodology
subject: 150506 Marketing Theory

description: The main objective of this paper is to gain insight into the developments of modern retail from theIndian context. This paper attempts to provide detailed account of the growth of retail industry inIndia with a futuristic perspective. It observes the growing awareness and brand consciousness amongpeople of different socio-economic classes in India and how the retail markets are going throughmajor growth. It also explores the upcoming trends in organised retail marketing. In India the growingmiddle class and the nearly untapped retail industry are the main attractive forces for global retailgiants planning to enter into emerging markets, which will in turn help the Indian Retail Industry togrow faster. This paper includes growth of retail sector in India, emerging trends, opportunities andalso highlights the challenges faced by the industry
UHECR: Signatures and Models
Creators: name: Berezinsky, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The signatures of Ultra High Energy (E >1 EeV) proton propagation through CMB radiation are pair-production dip and GZK cutoff. The visible characteristics of these two spectral features are ankle, which is intrinsic part of the dip, beginning of GZK cutoff in the differential spectrum and E_{1/2} in integral spectrum. Measured by HiRes and Telescope Array (TA) these characteristics agree with theoretical predictions. However, directly measured mass composition remains a puzzle. While HiRes and TA detectors observe the proton dominated mass composition, the data of Auger detector strongly evidence for nuclei mass composition becoming progressively heavier at energy higher than 4 EeV and reaching Iron at energy about 35 EeV. The models based on the Auger and HiRes/TA data are considered independently and classified using the transition from galactic to extragalactic cosmic rays. The ankle cannot provide this transition. since data of all three detector at energy (1 - 3) EeV agree with pure proton composition (or at least not heavier than Helium). If produced in Galaxy these particles result in too high anisotropy. This argument excludes or strongly disfavours all ankle models with ankle energy E_a > 3 EeV. The calculation of elongation curves, X_{\max}(E), for different ankle models strengthens further this conclusion. Status of other models, the dip, mixed composition and Auger based models are discussed.
description: Invited talk at Int. Symposium on Future Directions in UHECR, CERN 2012
Isotropization of the Quark Gluon Plasma
Creators: name: Epelbaum, Thomas
name: Gelis, François
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report here recent analytical and numerical work on the theoretical treatment of the early stages of heavy ion collisions, that amounts to solving the classical Yang-Mills equations with fluctuating initial conditions. Our numerical simulations suggest a fast isotropization of the pressure tensor of the system. This trend appears already for small values of the coupling constant $α_s$ . In addition, the system exhibits an anomalously small shear viscosity.
description: 8 pages, 2 figures, Plenary contribution to the International Conference on the Initial Stages of High-Energy Nuclear Collisions 2013 (IS2013). v3: Final version, to appear in NPA. http://dx.doi.org/10.1016/j.nuclphysa.2014.02.014
Effects of Colloidal Nanosilica on Rheological and Mechanical Properties of Fly Ash-Cement Mortar
Creators: name: Hou, Pengkun
name: Kawashima, Shiho
name: Wang, Kejin
name: Corr, David J.
name: Qian, Jueshi
name: Shah, Surendra P.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Engineering
subject: Civil engineering
subject: FOS: Civil engineering
subject: Nanotechnology
subject: FOS: Nanotechnology

description: The present study is aimed at investigating the combined effects of colloidal nanosilica (CNS) and fly ash on the properties of cement-based materials. The fresh and hardened properties of mixtures with CNS of 10 nm size and two Class F fly ashes were evaluated. Results revealed that CNS accelerates the setting of fly ash–cement systems by accelerating cement hydration, while fly ash can offset the reduction in fluidity caused by CNS. The early-age strength gain (before 7 d) of fly ash–cement systems was improved by CNS. However, the strength gain of mixtures with CNS diminished at later ages (after 28 d), where strength was eventually comparable to or exceeded by mixtures without CNS. Results showed that lack of Ca(OH)₂, which results from the high pozzolanic reactivity of CNS at early ages, and the hydration hindrance effect of CNS on cement at later ages can be the critical reasons.
The impact range for smooth wall-liquid interactions in nanoconfined liquids
Creators: name: Ingebrigtsen, Trond S.
name: Dyre, Jeppe C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Bulk and nanoconfined liquids have initially very different physics; for instance, nanoconfined liquids show stratification and position-dependent relaxation processes. A number of similarities between bulk and nanoconfined liquids have nevertheless been reported in computer simulations during the last decade. Inspired by these observations, we present results from molecular dynamics computer simulations of three nanoconfined liquids (i.e., single-component Lennard-Jones (LJ) liquid, Kob-Andersen binary LJ mixture, and an asymmetric dumbbell model) demonstrating also a microscopic similarity between bulk and nanoconfined liquids. The results show that the interaction range for the wall-liquid and liquid-liquid interactions of the nanoconfined liquid are identical to the bulk liquid as long as the liquid remains "Roskilde simple" in nanoconfinement, i.e., the liquid has strong correlations between virial and potential energy equilibrium fluctuations in the NVT ensemble.
description: 8 pages
On the Tremaine-Gunn Limit with Mass-Varying Particles
Creators: name: Boubekeur, Lotfi
name: Profumo, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: General classical arguments on the time evolution of the phase-space density can be used to derive constraints on the mass of particle candidates for the cosmological dark matter (DM). The resulting Tremaine-Gunn limit is extremely useful in constraining particle DM models. In certain models, however, the DM particle mass varies appreciably over time. In this work, we generalize the phase-space limits on possible DM particle masses to these scenarios. We then examine the ensuing cosmological implications on the effective DM equation of state and indirect DM detection.
description: RevTeX, 7 pages, 3 figures. Matches published version in PRD
Directe Wahl, Associationsrecht und Volksvertretung, oder die Täuschungen, womit die Anhänger der constitutionellen Monarchie bedroht sind; [ca. 1848]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel
Inclusive Growth And Youth Empowerment: A development Model for Aspirational India
Creators: name: Sudeep B Chandramana
Publisher: name: figshare
Year: 2020
Subjects: subject: 70108 Sustainable Agricultural Development
subject: FOS: Other agricultural sciences
subject: 150106 Sustainability Accounting and Reporting
subject: FOS: Economics and business

description: Inclusive Growth And Youth Empowerment: A development Model For Aspirational India
Additional file 3 of Diagnosis of Epstein-Barr and cytomegalovirus infections using decision trees: an effective way to avoid antibiotic overuse in paediatric tonsillopharyngitis
Creators: name: Takács, Andrea Tímea
name: Bukva, Mátyás
name: Bereczki, Csaba
name: Burián, Katalin
name: Terhes, Gabriella
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Supplementary Material 3
Importance of Catalyst Stability vis-à-vis Hydrogen Peroxide Formation Rates in PEM Fuel Cell Electrodes
Creators: name: Sethuraman, Vijay A.
name: Weidner, John W.
name: Haug, Andrew T.
name: Pemberton, Marianne
name: Protsailo, Lesia V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The role of catalyst stability on the adverse effects of hydrogen peroxide (H2O2) formation rates in a proton exchange membrane fuel cell (PEMFC) is investigated for Pt, Pt binary (PtX, X = Co, Ru, Rh, V, Ni) and ternary (PtCoX, X = Ir, Rh) catalysts. The selectivity of these catalysts towards H2O2 formation in the oxygen reduction reaction (ORR) was measured on a rotating ring disc electrode. These measured values were used in conjunction with local oxygen and proton concentrations to estimate local H2O2 formation rates in a PEMFC anode and cathode. The effect of H2O2 formation rates on the most active and durable of these catalysts (PtCo and PtIrCo) on Nafion membrane durability was studied using a single-sided membrane electrode assembly (MEA) with a built-in reference electrode. Fluoride ion concentration in the effluent water was used as an indicator of the membrane degradation rate. PtIrCo had the least fluorine emission rate (FER) followed by PtCo/KB and Pt/KB. Though PtCo and PtIrCo show higher selectivity for H2O2 formation than unalloyed Pt, they did not contribute to membrane degradation. This result is explained in terms of catalyst stability as measured in potential cycling tests in liquid electrolyte as well as in a functional PEM fuel cell.
description: 38 pages, 13 figures
Modification of Cement-Based Materials with Nanoparticles
Creators: name: Kawashima, Shiho
name: Hou, Pengkun
name: Corr, David J.
name: Shah, Surendra P.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Engineering
subject: Civil engineering
subject: FOS: Civil engineering
subject: Nanotechnology
subject: FOS: Nanotechnology

description: This is a summary paper on the work being done at the Center for Advanced Cement-Based Materials at Northwestern University on the modification of cement-based materials with nanoparticles, specifically nanoclays, calcium carbonate nanoparticles, and nanosilica. The rheological properties of clay-modified cement-based materials are investigated to understand the influence of nanoclays on thixotropy. The influence of the method of dispersion of calcium carbonate nanoparticles on rate of hydration, setting, and compressive strength are evaluated. And an in-depth study on the mechanisms underlying the influence of nanosilica on the compressive strength gain of fly ash–cement systems is discussed. The motivation behind these studies is that with proper processing techniques and fundamental understanding of the mechanisms underlying the effect of the nanoparticles, they can be used to enhance the fresh-state and hardened properties of cement-based materials for various applications. Nanoclays can increase the green strength of self-consolidating concrete for reduced formwork pressure and slipform paving. Calcium carbonate nanoparticles and nanosilica can offset the negative effects of fly ash on early-age properties to facilitate the development of a more environmentally friendly, high-volume fly ash concrete.
Collective effects in vortex movements in complex (dusty) plasmas
Creators: name: Schwabe, Mierk
name: Zhdanov, Sergey
name: Räth, Christoph
name: Graves, David B.
name: Thomas, Hubertus M.
name: Morfill, Gregor E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study the onset and characteristics of vortices in complex (dusty) plasmas using two-dimensional simulations in a setup modeled after the PK-3 Plus laboratory. A small number of microparticles initially self-arranges in a monolayer around the void. As additional particles are introduced, an extended system of vortices develops due to a non-zero curl of the plasma forces. We demonstrate a shear-thinning effect in the vortices. Velocity structure functions and the energy and enstrophy spectra show that vortex flow turbulence is present that is in essence of the "classical" Kolmogorov type.
description: 5 pages, 6 figures
MECHANICS IN ORGANIC MIXED IONIC-ELECTRONIC CONDUCTORS
Creators: name: Wang, Xiaokang
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Solid mechanics

description: This Dissertation aims at establishing an integrated framework of multimodal experiments and multiphysics theory to extend the understanding of the mechanics in electrochemically active materials using organic mixed ionic-electronic conductors (OMIECs) as a model system. OMIECs allow the transport of both ions and electrons, which is accompanied by the (electronic, micro-) structural reorganization. The electronic structural change in OMIECs induces transforms in the electrical conductivity and optical absorbance. The change in molecular packing invites the size change and evolution of mechanical properties. The multiphysics processes render OMIECs a fascinating platform for understanding the multi-physics coupling and advancing organic electrochemical devices. Despite significant progress, there are urgent needs in the experimental techniques and the subsequent mechanical characterization, theoretical understanding of the multiphysics processes, and mechanics-informed design principles for high-performance devices. Specifically, (i) an accurate and straightforward experimental method is in need to better understand the mechanical behaviors and kinetics such as swelling and softening of OMIECs upon electrochemical redox reactions; (ii) a theoretical framework is missing that describes the rich coupled multiphysics processes such as large deformation, charge and mass transport, electrostatics, and phase evolution in OMIECs; (iii) the rational design of the materials and structures based on mechanics principles are required for mechanically reliable, high-performance organic electrochemical devices. In this Dissertation, the mechanics of OMIECs are studied systematically. The basics of OMIECs, knowledge gaps, and the outline are introduced in Chapter 1. The in-situ environmental nanoindentation apparatus and the associating characterization techniques are presented in Chapter 2. In Chapter 3, a theoretical mechanics model is presented that elucidates the interfacial mechanical degradation of thin-film electrodes and outlines the design principles for mechanically reliable electrodes. In Chapter 4, the electrochemical doping kinetics and its stress dependency on conductive polymers are studied via a designed moving front device. Chapter 5 presents a thermodynamically consistent continuum theory of two-phase OMIECs undergoing large deformation, charge and mass transport, electrostatics, and phase separation, which forms the theoretical foundation for such conductive polymer systems. The conclusion and perspectives on future work are presented in Chapter 6.
Effects of Colloidal NanoSiO2 on Fly Ash Hydration
Creators: name: Hou, Pengkun
name: Wang, Kejin
name: Qian, Jueshi
name: Kawashima, Shiho
name: Kong, Deyu
name: Shah, Surendra P.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Engineering
subject: Civil engineering
subject: FOS: Civil engineering
subject: Nanotechnology
subject: FOS: Nanotechnology

description: The influences of colloidal nanoSiO₂ (CNS) addition on fly ash hydration and microstructure development of cement–fly ash pastes were investigated. The results revealed that fly ash hydration is accelerated by CNS at early age thus enhancing the early age strength of the materials. However, the pozzolanic reaction of fly ash at later age is significantly hindered due to the reduced CH content resulting from CNS hydration and the hindered cement hydration, as well as due to a layer of dense, low Ca/Si hydrate coating around fly ash particles. The results and discussions explain why the cementitious materials containing nanoSiO₂ had a lower strength gain at later ages. Methods of mitigating the adverse effect of nanoSiO₂ on cement/FA hydration at later ages were proposed.
PRIDE AND LEADERSHIP COMMUNICATION BEHAVIOR
Creators: name: Mo'minov Sherozbek Siddiqjonovich PhD student of FerSU.
name: Shukurov Rahmatillo Mirzatillayevich FerSU associate professor, candidate of philological sciences
Publisher: name: Zenodo
Year: 2023

description: In this article, opinions about lack of arrogance and communication etiquette of the leader are presented. Also, the article mentions some of the author's views, such as the culture of treatment, behavior of the leader, his relationship with the employees of the organization in which he operates, and what kind of culture of treatment he should implement when problems arise.
Keywords. Leader, culture of treatment, arrogance, organization, personnel, employee, problem, standard.
Search for Gravitational Waves from Scorpius X-1 in LIGO O3 Data With Corrected Orbital Ephemeris
Creators: name: Whelan, John T.
name: Tenorio, Rodrigo
name: Wofford, Jared K.
name: Clark, James A.
name: Daw, Edward J.
name: Goetz, Evan
name: Keitel, David
name: Neunzert, Ansel
name: Sintes, Alicia M.
name: Wagner, Katelyn J.
name: Woan, Graham
name: Killestein, Thomas L.
name: Steeghs, Danny
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Improved observational constraints on the orbital parameters of the low-mass X-ray binary Scorpius~X-1 were recently published in Killestein et al (2023). In the process, errors were corrected in previous orbital ephemerides, which have been used in searches for continuous gravitational waves from Sco~X-1 using data from the Advanced LIGO detectors. We present the results of a re-analysis of LIGO detector data from the third observing run of Advanced LIGO and Advanced Virgo using a model-based cross-correlation search. The corrected region of parameter space, which was not covered by previous searches, was about 1/3 as large as the region searched in the original O3 analysis, reducing the required computing time. We have confirmed that no detectable signal is present over a range of gravitational-wave frequencies from $25\textrm{Hz}$ to $1600\textrm{Hz}$, analogous to the null result of Abbott et al (2022). Our search sensitivity is comparable to that of Abbott et al (2022), who set upper limits corresponding, between $100\textrm{Hz}$ and $200\textrm{Hz}$, to an amplitude $h_0$ of about $10^{-25}$ when marginalized isotropically over the unknown inclination angle of the neutron star's rotation axis, or less than $4\times 10^{-26}$ assuming the optimal orientation.
description: 8 pages, 3 figures, 2 tables. Typeset with AASTeX 6.3.1. Accepted for publication in The Astrophysical Journal. arXiv admin note: text overlap with arXiv:2209.02863
A Study on Consumers’ Buying Behaviour in Retail Outlet
Creators: name: Sudeep B Chandramana
name: R Menaka
Publisher: name: figshare
Year: 2020
Subjects: subject: 150503 Marketing Management (incl. Strategy and Customer Relations)
subject: FOS: Economics and business
subject: 150506 Marketing Theory
subject: 150501 Consumer-Oriented Product or Service Development

description: The retail sector is tending to spread quickly in India over the last few decades.The Indian retail industry is composed of organized and unorganized retail markets. It hasexperienced high growth over the last few years with a recognizable focus towardsorganized retailing formats. The industry is shifting towards a modern concept of retailing.As India’s retail industry is combatively expanding itself, great demand for retail outlets isbeing created. Moreover, easy availability of debit/credit cards has contributedsignificantly to a strong and growing retail consumer culture in India. Customers arebecoming more powerful, more knowledgeable and more sophisticated, and research intomodern consumer behavior is increasingly significant for the retailing sector. Storeattributes are important to consumers when they make the decision where to shop. Storeattributes are presented by retailers according to their specific functional strategies. Storeattributes must be offered that are desired by the targeted consumer. The challenge toretailers is to determine which store attributes are relatively more important to thetargeted consumer. The face of Indian consumerism is changing: not Indian consumerism isevolving from Bajaj Scooter family man to Bajaj Pulsar trendy youngster. This changingconsumer’s taste and lifestyle, somewhere automatically give some advantage to organizedsector. This makes imperative for unorganized retail sector to restructure itself in order towithstand the increasing competition and to meet consumer expectations by moving withtrends. Hence, the present study focusing on the customers’ buying behaviour in RetailOutlet and findings were by primary and secondary sources of data collections.
title: MRI imaging features of Cri-du-chat syndrome
Creators: name: SRINATH, NEELA
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Neuroradiology
subject: CNS
subject: Paediatric
subject: MR
subject: Imaging sequences
subject: Congenital
subject: Clinical Cases

description: Clinical History: A 14-month-old girl, 3rd born of a non-consanguineous marriage, presented with developmental delay. Her antenatal history was uneventful. On examination, she had microcephaly, facial dysmorphism in the form of hypopigmented hair, frontal bossing, hypertelorism, epicanthic folds, flat nasal bridge and inverted nares and central hypotonia.

description: 14 months, female
Influence of Clays on the Shrinkage and Cracking Tendency of SCC
Creators: name: Gao, Xiaojian
name: Kawashima, Shiho
name: Liu, Xiaoyan
name: Shah, Surendra P.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Engineering
subject: Civil engineering
subject: FOS: Civil engineering

description: The influence of different types of clay on the shrinkage and cracking tendency of fly ash modified self-consolidating concrete (SCCF) for the application of slipform paving were investigated in this study. The mortar phase of each mix was tested for autogenous shrinkage, total free shrinkage under drying and restrained shrinkage cracking. The mechanical properties (flexural strength, compressive strength, and modulus) were studied to supplement the results of the shrinkage and cracking tests. The plain SCCF mix was compared against the clay-modified SCCF mixes, as well as conventional SCC and slipform concrete (SFC) mixes. The results showed that the very early-age autogenous shrinkage of SCCF mortar was increased by the addition of clays due to adsorption effects. The effects of the clays on total shrinkage under long-term drying were found to depend mainly on the pozzolanic reactivity, but these effects were very slight at low dosages of about 1% by mass of binder. The early-age cracking tendency was aggravated by the clays composed of purified magnesium alumino silicate and metakaolin, but little influenced by the clay composed of kaolinite, illite and silica. Overall, the SCC mixture modified with both fly ash and a small amount of clay showed comparable shrinkage and early-age cracking performances as conventional SFC.