cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental study and modeling of IF steel oxidation process in air
Creators: name: Ren, Xuzhan
Publisher: name: University of British Columbia
Year: 2009

description: This thesis examines the oxidation of Interstitial-free steels in air by means of an experimental investigation and process modeling. The ultimate objective is to develop a computer model which could be employed to predict scale growth under industrial conditions. A purely theoretical approach to developing a model for industrial use is not appropriate because there are too many factors involved in the oxidation process and it would be difficult to make realistic predictions. The experiments were conducted under conditions as close as possible to industrial practice. With IF steels, two different scale growth mechanisms were found. Based on those different mechanisms, an innovative model for simulating heat transfer and predicting scale growth has been formulated and implemented on a personal computer. The model gives the best possible results in comparison to previous studies of predicting scale growth for the whole process and has the potential of being applied in the steel industry. For oxidation experiments, samples bigger than those used in the past were employed to reduce geometrical effects. Samples that are too small tend to give oxidation data that deviates greatly from the industrial situation due to geometric effects. Below 950 °C, adherent and dense scale is usually formed while above 950 °C, detached, laminated and porous scale accounts for most of the scale formed. The gap formed due to detachment reduces the scaling rate. So after gap formation, the scaling rates at 1000 °C and 1050 °C are lower than that at 950 °C. However the porosity and fissures of the scale increase the scaling rate. Temperature plays an even bigger role in oxidation. At temperatures higher than 1050 °C, the scaling rates are higher than that at 950 °C in spite of the detachment of the scale formed. These three factors compete with each other. The primary isothermal oxidation data is very different from the secondary isothermal oxidation data. This difference is very important in developing a practical model. The microstructural aspects of the scale formed were also comprehensively examined. For modeling, the basic idea is to use a whole set of isothermal oxidation data to simulate the oxidation process for any given temperature history. However if a sample goes through two different oxidation mechanisms, the primary isothermal oxidation data cannot be used for the secondary mechanism. With other details taken into account, the scale growth model gives results in good agreement with the experimental measurements.
Cost-Benefit Analysis and Regulatory Reform: An Assessment of the Science and the Art
Creators: name: Kopp, Raymond J.
name: Krupnick, Alan J.
name: Toman, Michael
name: Kopp, Raymond J.
name: Krupnick, Alan J.
name: Toman, Michael
Publisher: name: Unknown
Year: 1997
Subjects: subject: Demand and Price Analysis
subject: cost-benefit
subject: cost-effectiveness
subject: risk management
subject: regulatory reform

description: The continuing efforts in the 104th Congress to legislate requirements for cost-benefit analysis (CBA) and the revised Office of Management and Budget guidelines for the conduct of such assessments during a regulatory rulemaking process highlight the need for a comprehensive examination of the role that CBA can play in agency decision-making. This paper summarizes the state of knowledge regarding CBA and offers suggestions for improvement in its use, especially in the context of environmental regulations.
Parity law of the singlet-triplet gap in graphitic ribbons
Creators: name: Hajj, Mohamad Al
name: Alet, Fabien
name: Capponi, Sylvain
name: Lepetit, Marie Bernadette
name: Malrieu, Jean-Paul
name: Todo, Synge
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: This work explores the possibility to transfer the parity law of the singlet-triplet gap established for square ladders (gapped for even number of legs, gapless for odd number of legs) to fused polyacenic 1-D systems, i.e., graphite ribbons. Qualitative arguments are presented in favor of a gapped character when the number $n\_ω$ of benzene rings along the ribbon width is odd. A series of numerical calculations (quantitative mapping on spin 1/2 chains, renormalized excitonic treatments and Quantum Monte Carlo) confirm the parity law and the gapless character of the ribbon for even $n\_ω$.
description: 7 pages, 7 figures, published version
Path Integral and the Induction Law
Creators: name: Barone, F. A.
name: Farina, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We show how the induction law is correctly used in the path integral computation of the free particle propagator. The way this primary path integral example is treated in most textbooks is a little bit missleading.
description: 5 latex pages, no figures
The Effects of Potential Land Development on Agricultural Land Prices
Creators: name: Plantinga, Andrew J.
name: Lubowski, Ruben N.
name: Stavins, Robert N.
name: Plantinga, Andrew J.
name: Lubowski, Ruben N.
name: Stavins, Robert N.
Publisher: name: Unknown
Year: 2002
Subjects: Land Economics/Use

description: We conduct a national-scale study of the determinants of agricultural land values to better understand how current farmland prices are influenced by the potential for future land development. The theoretical basis for the empirical analysis is a spatial city model with stochastic returns to future land development. From the theoretical model, we derive an expression for the current price of agricultural land in terms of annual returns to agricultural production, the price of recently developed land parcels, and expressions involving model parameters that are represented in the empirical model by nonlinear functions of observed variables and parameters to be estimated. We estimate the model of agricultural land values with a cross-section on approximately three thousand counties in the contiguous U.S. The results provide strong support for the model, and provide the first evidence that option values associated with irreversible and uncertain land development are capitalized into current farmland values. The empirical model is specified in a way that allows us to identify the contributions to land values of rents from near-term agricultural use and rents from potential development in the future. For each county in the contiguous U.S., we estimate the share of the current land value attributable to future development rents. These results give a clearer indication of the magnitude of land development pressures and yield insights into policies to preserve farmland and associated environmental benefits.
Exploring the possible gluon condensation signature in gamma-ray emission from pulsars
Creators: name: Ruan, J. H.
name: Zheng, Z. C.
name: Zhu, W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The very high energy gamma-ray emissions from pulsars are usually considered to be dominated by leptonic scenario since the hadronic flux is weak. We point out that the gluon condensation predicted by a nonlinear QCD evolution equation may greatly enhance the cross sections of proton-target interactions and give rise to a characteristic broken power law in the gamma-ray spectra. The result is used to explore the gluon condensation signature in the observed gamma-ray spectra from pulsars.
description: 24 pages, 14 figures and 1 table. Accepted for publication in JCAP
The GDPR Enforcement Fines at Glance
Creators: name: Ruohonen, Jukka
name: Hjerppe, Kalle
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The General Data Protection Regulation (GDPR) came into force in 2018. After this enforcement, many fines have already been imposed by national data protection authorities in Europe. This paper examines the individual GDPR articles referenced in the enforcement decisions, as well as predicts the amount of enforcement fines with available meta-data and text mining features extracted from the enforcement decision documents. According to the results, three articles related to the general principles, lawfulness, and information security have been the most frequently referenced ones. Although the amount of fines imposed vary across the articles referenced, these three particular articles do not stand out. Furthermore, a better statistical evidence is available with other meta-data features, including information about the particular European countries in which the enforcements were made. Accurate predictions are attainable even with simple machine learning techniques for regression analysis. Basic text mining features outperform the meta-data features in this regard. In addition to these results, the paper reflects the GDPR's enforcement against public administration obstacles in the European Union (EU), as well as discusses the use of automatic decision-making systems in judiciary.
description: Information Systems, published online in August 2021, pp. 1-11. Substantial overlap expected with arXiv:2003.05151; accepted by venue (i.e., extended conference paper)
First Results from a Photometric Survey of Strong Gravitational Lens Environments
Creators: name: Williams, K. A.
name: Momcheva, I.
name: Keeton, C. R.
name: Zabludoff, A. I.
name: Lehar, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Many strong gravitational lenses lie in complex environments, such as poor groups of galaxies, that significantly bias conclusions from lens analyses. We are undertaking a photometric survey of all known galaxy-mass strong lenses to characterize their environments and include them in careful lens modeling, and to build a large, uniform sample of galaxy groups at intermediate redshifts for evolutionary studies. In this paper we present wide-field photometry of the environments of twelve lens systems with 0.24 < z_lens < 0.5. Using a red-sequence identifying technique, we find that eight of the twelve lenses lie in groups, and that ten group-like structures are projected along the line of sight towards seven of these lenses. Follow-up spectroscopy of a subset of these fields confirms these results. For lenses in groups, the group centroid position is consistent with the direction of the external tidal shear required by lens models. Lens galaxies are not all super-L_* ellipticals; the median lens luminosity is < L_*, and the distribution of lens luminosities extends 3 magnitudes below L_* (in agreement with theoretical models). Only two of the lenses in groups are the brightest group galaxy, in qualitative agreement with theoretical predictions. As in the local Universe, the highest velocity-dispersion groups contain a brightest member spatially coincident with the group centroid, whereas lower-dispersion groups tend to have an offset brightest group galaxy. This suggests that higher-dispersion groups are more dynamically relaxed than lower-dispersion groups and that at least some evolved groups exist by z ~ 0.5.
description: Accepted for publication to the Astrophysical Journal. Figure 1 reduced in resolution. Requires emulateapj.sty. Table 6 to be published electronically. Revised version includes moderate changes to text, minor changes to conclusions, addition of one subsection
Precise Capture Rates of Cosmic Neutrinos and Their Implications on Cosmology
Creators: name: Akita, Kensuke
name: Hurwitz, Saul
name: Yamaguchi, Masahide
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We explore the potential of measurements of cosmological effects, such as neutrino spectral distortions from the neutrino decoupling and neutrino clustering in our Galaxy, via cosmic neutrino capture on tritium. We compute the precise capture rates of each neutrino species including such cosmological effects to probe them. These precise estimates of capture rates are also important in that the would-be deviation of the estimated capture rate could suggest new neutrino physics and/or a non-standard evolution of the universe. In addition, we discuss the precise differences between the capture rates of Dirac and Majorana neutrinos for each species, the required energy resolutions to detect each neutrino species and the method of reconstruction of the spectrum of cosmic neutrinos via the spectrum of emitted electrons, with emphasis on the PTOLEMY experiment.
description: 35 pages, 4 figures and 5 tables. Version accepted for publication in EPJC
Fractional Corner Charge of Sodium Chloride
Creators: name: Watanabe, Haruki
name: Po, Hoi Chun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent developments in higher-order topological phases have elucidated on the relationship between nontrivial multipole moments in the bulk and the emergence of fractionally quantized charges at the boundary. Here, we put on the table a proposal of the three-dimensional octupole insulator with fractionally quantized corner charges $\pm e/8$: sodium chloride, commonly known as table salt. The fractional quantization of the corner charge is unaffected by the quantum fluctuation of the electric charge per ion, as we demonstrate explicitly with ab initio calculations. We further show that the electrostatic signature of the fractional charge is well-preserved even when the ideal crystal is sprinkled with defects, and provide a systematic analysis on how the corner charge contribution could be isolated from the electric-field corrections originating from realistic surface relaxation. Our results suggest that the observation of corner charges from quantized multipole moments in solids might be around the corner.
description: 14 pages, 7 figures
Semi-classical quantisation of magnetic solitons in the anisotropic Heisenberg quantum chain
Creators: name: Miao, Yuan
name: Ilievski, Enej
name: Gamayun, Oleksandr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using the algebro-geometric approach, we study the structure of semi-classical eigenstates in a weakly-anisotropic quantum Heisenberg spin chain. We outline how classical nonlinear spin waves governed by the anisotropic Landau-Lifshitz equation arise as coherent macroscopic low-energy fluctuations of the ferromagnetic ground state. Special emphasis is devoted to the simplest types of solutions, describing precessional motion and elliptic magnetisation waves. The internal magnon structure of classical spin waves is resolved by performing the semi-classical quantisation using the Riemann-Hilbert problem approach. We present an expression for the overlap of two semi-classical eigenstates and discuss how correlation functions at the semi-classical level arise from classical phase-space averaging.
description: 61 pages, 14 figures
Desarrollo Territorial Rural en America Latina: Discurso y Realidades
Creators: name: Alfaro, Jorge Mora
name: Alfaro, Jorge Mora
Publisher: name: Unknown
Year: 2006
Subjects: Community/Rural/Urban Development

description: The reorientation ocurred in the socioeconomic, politic and institutional development of the Latin American and Caribbean countries, since 80's decade, provoke significant transformations in the regional rural spaces. The socioeconomic bipolarization is one of the most remarkable phenomena in the new conditions of the rural areas: by one side, was conformed a dynamic sector of companies, familiar's producers and external investors, dedicated to goods exportation or a different non agriculture rural activities (NARA). On the other side, numerous rural families, without the resources and the capabilities to compete with the imported goods, were gradually excluded. The NARA and the familiar pluriactivity are two ways used by the rural families to incomes generations in this new context. But the persistent poverty shows that many of them couldn't obtain the resources needed for their wealth. The Territorial Rural Development Strategies (TRDS) are one of the proposals to impulse the productive, social and institutional development in the rural areas. But these strategies confront serious obstacles to concrete their objectives and to promote the population participation and the rural wealth. In this paper were analyzed the main obstacles to encourage the TRDS in the region.
Measurement of the running of the QED coupling in small-angle Bhabha scattering at LEP
Creators: name: The OPAL Collaboration
name: Abbiendi, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using the OPAL detector at LEP, the running of the effective QED coupling alpha(t) is measured for space-like momentum transfer from the angular distribution of small-angle Bhabha scattering. In an almost ideal QED framework, with very favourable experimental conditions, we obtain: Delta alpha(-6.07GeV^2) - Delta alpha(-1.81GeV^2) = (440 pm 58 pm 43 pm 30) X 10^-5, where the first error is statistical, the second is the experimental systematic and the third is the theoretical uncertainty. This agrees with current evaluations of alpha(t).The null hypothesis that alpha remains constant within the above interval of -t is excluded with a significance above 5sigma. Similarly, our results are inconsistent at the level of 3sigma with the hypothesis that only leptonic loops contribute to the running. This is currently the most significant direct measurment where the running alpha(t) is probed differentially within the measured t range.
description: 43 pages, 12 figures, Submitted to Euro. Phys. J. C
The impact of COVID-19 on the stock market crash risk in China
Creators: name: Liu, Zhifeng
name: Huynh, Toan Luu Duc
name: Dai, Peng-Fei
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: This study investigates the impact of the COVID-19 pandemic on the stock market crash risk in China. For this purpose, we first estimated the conditional skewness of the return distribution from a GARCH with skewness (GARCH-S) model as the proxy for the equity market crash risk of the Shanghai Stock Exchange. We then constructed a fear index for COVID-19 using data from the Baidu Index. Based on the findings, conditional skewness reacts negatively to daily growth in total confirmed cases, indicating that the pandemic increases stock market crash risk. Moreover, the fear sentiment exacerbates such risk, especially with regard to the impact of COVID-19. In other words, when the fear sentiment is high, the stock market crash risk is more strongly affected by the pandemic. Our evidence is robust for the number of daily deaths and global cases.
description: 30 pages
Sustained subcutaneous delivery of secretome of human cardiac stem cells promotes cardiac repair following myocardial infarction
Creators: name: Kompa, Andrew R
name: Greening, David
name: Kong, Anne M
name: McMillan, Paul J
name: Hoayun Fang
name: Ritika Saxena
name: Wong, Raymond CB
name: Jarmon G Lees
name: Priyadharshini Sivakumaran
name: Newcomb, Andrew E
name: Bakhos A Tannous
name: Kos, Cameron
name: Mariana, Lina
name: Loudovaris, Thomas
name: Hausenloy, Derek J
name: Shiang Y Lim
Publisher: name: La Trobe
Year: 2021
Subjects: Uncategorized

description: Abstract: Aims - To establish pre-clinical proof of concept that sustained subcutaneous delivery of the secretome of human cardiac stem cells (CSCs) can be achieved in vivo to produce significant cardioreparative outcomes in the setting of myocardial infarction. Methods and results - Rats were subjected to permanent ligation of left anterior descending coronary artery and randomized to receive subcutaneous implantation of TheraCyte devices containing either culture media as control or 1 × 106 human W8B2+ CSCs, immediately following myocardial ischaemia. At 4 weeks following myocardial infarction, rats treated with W8B2+ CSCs encapsulated within the TheraCyte device showed preserved left ventricular ejection fraction. The preservation of cardiac function was accompanied by reduced fibrotic scar tissue, interstitial fibrosis, cardiomyocyte hypertrophy, as well as increased myocardial vascular density. Histological analysis of the TheraCyte devices harvested at 4 weeks post-implantation demonstrated survival of human W8B2+ CSCs within the devices, and the outer membrane was highly vascularized by host blood vessels. Using CSCs expressing plasma membrane reporters, extracellular vesicles of W8B2+ CSCs were found to be transferred to the heart and other organs at 4 weeks post-implantation. Furthermore, mass spectrometry-based proteomic profiling of extracellular vesicles of W8B2+ CSCs identified proteins implicated in inflammation, immunoregulation, cell survival, angiogenesis, as well as tissue remodelling and fibrosis that could mediate the cardioreparative effects of secretome of human W8B2+ CSCs. Conclusions Subcutaneous implantation of TheraCyte devices encapsulating human W8B2+ CSCs attenuated adverse cardiac remodelling and preserved cardiac function following myocardial infarction. The TheraCyte device can be employed to deliver stem cells in a minimally invasive manner for effective secretome-based cardiac therapy.
Bericht über die Gemeinsame Arbeitsgruppe zwischen der römisch-katholischen Kirche und dem Ökumenischen Rat der Kirchen vor dem Zentralausschuß in Utrecht
Creators: name: Vischer, Lukas
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 21 Nr. 4 (1972): Ökumenische Rundschau, Band 21, Heft 4
Decomposing non-stationary signals with time-varying wave-shape functions
Creators: name: Colominas, Marcelo A.
name: Wu, Hau-Tieng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Modern time series are usually composed of multiple oscillatory components, with time-varying frequency and amplitude contaminated by noise. The signal processing mission is further challenged if each component has an oscillatory pattern, or the wave-shape function, far from a sinusoidal function, and the oscillatory pattern is even changing from time to time. In practice, if multiple components exist, it is desirable to robustly decompose the signal into each component for various purposes, and extract desired dynamics information. Such challenges have raised a significant amount of interest in the past decade, but a satisfactory solution is still lacking. We propose a novel {\em nonlinear regression scheme} to robustly decompose a signal into its constituting multiple oscillatory components with time-varying frequency, amplitude and wave-shape function. We coined the algorithm {\em shape-adaptive mode decomposition (SAMD)}. In addition to simulated signals, we apply SAMD to two physiological signals, impedance pneumography and electroencephalography. Comparison with existing solutions, including linear regression, recursive diffeomorphism-based regression and multiresolution mode decomposition, shows that our proposal can provide an accurate and meaningful decomposition with computational efficiency.
Fourier-Laplace transform of a variation of polarized complex Hodge structure
Creators: name: Sabbah, Claude
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary 32S40, Secondary 14C30, 34Mxx

description: We show that the Fourier-Laplace transform of a regular holonomic module over the Weyl algebra of one variable, which generically underlies a variation of polarized Hodge structure, underlies itself an integrable variation of polarized twistor structure.
description: 36 pages. AMSLatex Revised version, few modifications
Finite size effects on kaonic pasta structures
Creators: name: Maruyama, Toshiki
name: Tatsumi, Toshitaka
name: Voskresensky, Dmitri N.
name: Tanigawa, Tomonori
name: Endo, Tomoki
name: Chiba, Satoshi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Non-uniform structures of mixed phases at the first-order phase transition to charged kaon condensation are studied using a density functional theory within the relativistic mean field model. Including electric field effects and applying the Gibbs conditions in a proper way, we numerically determine density profiles of nucleons, electrons and condensed kaons. Importance of charge screening effects is elucidated and thereby we show that the Maxwell construction is effectively justified. Surface effect is also studied to figure out its effect on the density profiles.
Robust Orbital Stabilization: A Floquet Theory-based Approach
Creators: name: Sætre, Christian Fredrik
name: Shiriaev, Anton S.
name: Freidovich, Leonid B.
name: Gusev, Sergei V.
name: Fridman, Leonid M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The design of robust orbitally stabilizing feedback is considered. From a known orbitally stabilizing controller for a nominal, disturbance-free system, a robustifying feedback extension is designed utilizing the sliding-mode control (SMC) methodology. The main contribution of the paper is to provide a constructive procedure for designing the time-invariant switching function used in the SMC synthesis. More specifically, its zero-level set (the sliding manifold) is designed using a real Floquet-Lyapunov transformation to locally correspond to an invariant subspace of the Monodromy matrix of a transverse linearization. This ensures asymptotic stability of the periodic orbit when the system is confined to the sliding manifold, despite any system uncertainties and external disturbances satisfying a matching condition. The challenging task of oscillation control of the underactuated Cart-Pendulum system subject to both matched and unmatched disturbances/uncertainties demonstrates the efficacy of the proposed scheme.
description: 36 pages, 9 figures. International Journal of Robust and Nonlinear Control, 2021
Self flowing refractory castables : study of the hydraulic bond and ceramic matrix formation
Creators: name: Esanu, Florin
Publisher: name: University of British Columbia
Year: 2009

description: Refractories are enabling materials in that their primary function is to facilitate the production of other materials such as metals, glasses, petrochemicals, and cements. They have enabled the utilization of heat to make materials since the Bronze Age. Although, in recent years, a number of studies concerning the many complex variables that determine the rheologic, hydraulic and ceramic properties of Advanced Refractory Castables (ARC) have been performed, the fundamentals of free-flow and of transition from a hydraulic to a ceramic matrix are still only poorly understood. The aim of this study is to provide a scientific base for understanding the flow behavior of A R C and its influence on the formation of ceramic. For this purpose the flow behavior of a series of low, ultra-low and no cement ARC compositions was analyzed. A method for measuring the viscosity of the binding system of ARC was developed. This method allowed for the first time the study of a direct correlation between the rheology of the matrix and the flow of a castable, and therefore a precise and scientific base for determining the influence of different dispersant additives. The rheological parameters of ARC compositions for different amounts of water, silica fume purity, content and type of refractory aggregate were correlated with mechanical strength at high temperatures. Based on the experimental and theoretical work carried out in this study a thorough characterization of the rheology of self-flowing castable refractories was performed. The rheological conditions that allow the early formation of the hydraulic matrix were identified. A new concept of interaction (Flash Flocculation) between the binding system and the spray gunning admixtures was developed. This concept was materialized in a novel type of spray gunning admixture. Laboratory studies as well as a pilot scale experiment confirmed the superiority of the flash flocculating admixture over the setting accelerators, which are currently used as spray gunning admixtures.
Motive und Kräfte ostkirchlicher Weltmission in Mittelalter und Neuzeit
Creators: name: Schaeder, Hildegard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 21 Nr. 4 (1972): Ökumenische Rundschau, Band 21, Heft 4
A Spectroscopic Study of the Environments of Gravitational Lens Galaxies
Creators: name: Momcheva, I.
name: Williams, K. A.
name: Keeton, C. R.
name: Zabludoff, A. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We present the first results from our spectroscopic survey of the environments of strong gravitational lenses. The lens galaxy belongs to a poor group of galaxies in six of the eight systems in our sample. We discover three new groups associated with the lens galaxies of BRI 0952-0115 (five members), MG 1654+1346 (seven members), and B2114+022 (five members). We more than double the number of members for another three previously known groups around the lenses MG 0751+2716 (13 total members), PG 1115+080 (13 total members), and B1422+231 (16 total members). We determine the kinematics of the six groups, including their mean velocities, velocity dispersions, and projected spatial centroids. The velocity dispersions of the groups range from 110 +170, -80 to 470 +100, -90 km/s. In at least three of the lenses -- MG0751, PG1115, and B1422 -- the group environment significantly affects the lens potential. These lenses happen to be the quadruply-imaged ones in our sample, which suggests a connection between image configuration and environment. The lens galaxy is the brightest member in fewer than half of the groups. Our survey also allows us to assess for the first time whether mass structures along the line of sight are important for lensing. We first show that, in principle, the lens potential may be affected by line-of-sight structures over a wide range of spatial and redshift offsets from the lens. We then quantify real line-of-sight effects using our survey and find that at least four of the eight lens fields have substantial interloping structures close in projection to the lens, and at least one of those structures (in the field of MG0751) significantly affects the lens potential.
description: Accepted for publication in the Astrophysical Journal. Figure 6 posted as a JPEG image. Requires emulateapj.sty
"YASHIL IQTISODIYOT" ASOSIDA SANOAT TARMOG'I SAMARADORLIGINI OSHIRISH XUSUSIYATLARI.
Creators: name: Kalandarova, Elnura
Publisher: name: Zenodo
Year: 2024

description: Maqolada “Yashil iqtisodiyot” asosida sanoat tarmog’i samaradorligini oshirishga erishish va bu yo‘nalishda samarali usullardan foydalanish bo’yicha tahlillar olib boriladi. O‘zbekiston hududlarida sanoat tarmog’i yashil iqtisodiyotga asoslangan iqtisodiyotni targ’ib qilish va rivojlantirish bo‘yicha ilmiy asoslangan tavsiyalar ishlab chiqildi.
Tensor-force effects on shell-structure evolution in $N = 82$ isotones and $Z = 50$ isotopes in the relativistic Hartree-Fock theory
Creators: name: Wang, Zhiheng
name: Naito, Tomoya
name: Liang, Haozhao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The evolution of the energy difference between the neutron states $1i_{13/2}$ and $1h_{9/2}$ in the $N=82$ isotones and that between the proton states $1h_{11/2}$ and $1g_{7/2}$ in the $Z = 50$ isotopes are investigated within the framework of the relativistic Hartree-Fock theory, using the density-dependent effective interactions PKA1 and PKO$i$ ($i = 1 $, $ 2 $, $ 3 $). By identifying the contributions of the tensor force, which is naturally induced via the Fock terms, we find that the tensor force plays crucial roles in the evolution of the shell structure. The strength of the tensor force is also explored. It is found that moderately increasing the coupling strength of pion-nucleon coupling, i.e., $f_π$, will significantly improve the description of the shell-structure evolution. In particular, reducing the density dependence of $f_π$ is shown to be more preferable, in comparison to enlarging $f_π$ with a factor. This is in consistence with the idea of "tensor renormalization persistency" and provides valuable guidance for the development of nuclear energy density functional in the relativistic framework.
description: 15 pages, 7 figures, 3 tables
Characterizing Attitudinal Network Graphs through Frustration Cloud
Creators: name: Rusnak, Lucas
name: Tešić, Jelena
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: Information Retrieval (cs.IR)
subject: Systems and Control (eess.SY)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: Attitudinal Network Graphs are signed graphs where edges capture an expressed opinion; two vertices connected by an edge can be agreeable (positive) or antagonistic (negative). A signed graph is called balanced if each of its cycles includes an even number of negative edges. Balance is often characterized by the frustration index or by finding a single convergent balanced state of network consensus. In this paper, we propose to expand the measures of consensus from a single balanced state associated with the frustration index to the set of nearest balanced states. We introduce the frustration cloud as a set of all nearest balanced states and use a graph-balancing algorithm to find all nearest balanced states in a deterministic way. Computational concerns are addressed by measuring consensus probabilistically, and we introduce new vertex and edge metrics to quantify status, agreement, and influence. We also introduce a new global measure of controversy for a given signed graph and show that vertex status is a zero-sum game in the signed network. We propose an efficient scalable algorithm for calculating frustration cloud-based measures in social network and survey data of up to 80,000 vertices and half-a-million edges. We also demonstrate the power of the proposed approach to provide discriminant features for community discovery when compared to spectral clustering and to automatically identify dominant vertices and anomalous decisions in the network.
Transport through anisotropic magnetic molecules with partially ferromagnetic leads: Spin-charge conversion and negative differential conductance
Creators: name: Elste, Florian
name: Timm, Carsten
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically investigate inelastic transport through anisotropic magnetic molecules weakly coupled to one ferromagnetic and one nonmagnetic lead. We find that the current is suppressed over wide voltage ranges due to spin blockade. In this system, spin blockade is associated with successive spin flips of the molecular spins and depends on the anisotropy energy barrier. This leads to the appearance of a window of bias voltages between the Coulomb blockade and spin blockade regimes where the current is large and to negative differential conductance at low temperatures. Remarkably, negative differential conductance is also present close to room temperature. Spin-blockade behavior is accompanied by super-Poissonian shot noise, like in nonmagnetic quantum dots. Finally, we show that the charge transmitted through the molecule between initial preparation in a certain spin state and infinite time very strongly depends on the initial spin state in certain parameter ranges. Thus the molecule can act as a spin-charge converter, an effect potentially useful as a read-out mechanism for molecular spintronics.
description: 8 pages with 5 figures, version as published
Exploring DeshuffleGANs in Self-Supervised Generative Adversarial Networks
Creators: name: Baykal, Gulcin
name: Ozcelik, Furkan
name: Unal, Gozde
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Generative Adversarial Networks (GANs) have become the most used networks towards solving the problem of image generation. Self-supervised GANs are later proposed to avoid the catastrophic forgetting of the discriminator and to improve the image generation quality without needing the class labels. However, the generalizability of the self-supervision tasks on different GAN architectures is not studied before. To that end, we extensively analyze the contribution of a previously proposed self-supervision task, deshuffling of the DeshuffleGANs in the generalizability context. We assign the deshuffling task to two different GAN discriminators and study the effects of the task on both architectures. We extend the evaluations compared to the previously proposed DeshuffleGANs on various datasets. We show that the DeshuffleGAN obtains the best FID results for several datasets compared to the other self-supervised GANs. Furthermore, we compare the deshuffling with the rotation prediction that is firstly deployed to the GAN training and demonstrate that its contribution exceeds the rotation prediction. We design the conditional DeshuffleGAN called cDeshuffleGAN to evaluate the quality of the learnt representations. Lastly, we show the contribution of the self-supervision tasks to the GAN training on the loss landscape and present that the effects of these tasks may not be cooperative to the adversarial training in some settings. Our code can be found at https://github.com/gulcinbaykal/DeshuffleGAN.
description: Accepted manuscript
Study of Factors Influencing China-ASEAN Agricultural Product Trade Development in the Context of “the Belt and Road”
Creators: name: YUE Yanyu
name: XIE Dongdi
name: YUE Yanyu
name: XIE Dongdi
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: The Belt and Road (B&D), China-ASEAN, Agricultural product trade, Influencing factors, Trade gravity model

description: This paper reviewed and analyzed the current situations and influencing factors of the bilateral agricultural product trade development in China-ASEAN Free Trade Area (CAFTA), which has important practical significance for promoting the in-depth development of the free trade area and has guiding significance for precise policy implementation. Based on the status of import and export trade of agricultural products in CAFTA from 2013 to 2017, it constructed a trade gravity model. With the aid of STATA14.0 software, it explored major factors influencing the development of bilateral agricultural trade from the total amount of agricultural products import and export and Commodity Indexes for the Standard International Trade Classification, Revision 3 (SITC Rev.3) agricultural product classification data. The empirical regression results show that the GDP of ASEAN countries, the ratio of agricultural added value to GDP, and the per capita gross national income (GNI) measured based on the purchasing power parity (PPP) exchange rate have the greatest impact on agricultural product trade in CAFTA in the context of “the Belt and Road” (B&D). Based on empirical research, it came up with recommendations including adjusting the import and export structure of agricultural products, enhancing product competitive advantages, and implementing diversified markets.
A quantum-network approach to spin interferometry driven by Abelian and non-Abelian fields
Creators: name: Hijano, A.
name: Berg, T. van den
name: Frustaglia, D.
name: Bercioux, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theory of conducting quantum networks that accounts for Abelian and non-Abelian fields acting on spin carriers. We apply this approach to model the conductance of mesoscopic spin interferometers of different geometry (such as squares and rings), reproducing recent experimental findings in nanostructured InAsGa quantum wells subject to Rashba spin-orbit and Zeeman fields (as, e.g., the manipulation of Aharonov-Casher interference patterns by geometric means). Moreover, by introducing an additional field-texture engineering, we manage to single out a previously unnoticed spin-phase suppression mechanism. We notice that our approach can also be used for the study of complex networks and the spectral properties of closed systems.
description: 13 pages with 9 figures
k-deformed Poincare algebras and quantum Clifford-Hopf algebras
Creators: name: da Rocha, Roldao
name: Bernardini, Alex E.
name: Vaz, Jayme
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15A66, 16W30, 20G42

description: The Minkowski spacetime quantum Clifford algebra structure associated with the conformal group and the Clifford-Hopf alternative k-deformed quantum Poincare algebra is investigated in the Atiyah-Bott-Shapiro mod 8 theorem context. The resulting algebra is equivalent to the deformed anti-de Sitter algebra U_q(so(3,2)), when the associated Clifford-Hopf algebra is taken into account, together with the associated quantum Clifford algebra and a (not braided) deformation of the periodicity Atiyah-Bott-Shapiro theorem.
description: 10 pages, RevTeX, one Section and references added, improved content.
Delay of Disorder by Diluted Polymers
Creators: name: Kityk, A. V.
name: Wagner, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the effect of diluted flexible polymers on a disordered capillary wave state. The waves are generated at an interface of a dyed water sugar solution and a low viscous silicon oil. This allows for a quantitative measurement of the spatio-temporal Fourier spectrum. The primary pattern after the first bifurcation from the flat interface are squares. With increasing driving strength we observe a melting of the square pattern. It is replaced by a weak turbulent cascade. The addition of a small amount of polymers to the water layer does not affect the critical acceleration but shifts the disorder transition to higher driving strenghs and the short wave length - high frequency fluctuations are suppressed.
Survey Report on Accelerating Development of Modern Vegetable Industry in Zibo City, Shandong Province
Creators: name: SUN Dongwen
name: GENG Bo
name: KONG Fuling
name: ZHANG Haijuan
name: SUN Dongwen
name: GENG Bo
name: KONG Fuling
name: ZHANG Haijuan
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Zibo City, Modern vegetable, Survey report

description: At present, Zibo is in the critical stage of rural revitalization. In order to accelerate the development of modern vegetable industry and promote rural revitalization, Zibo City Vegetable Office organized special personnel to carry out this survey. This survey report comprehensively analyzed the current development situation of vegetable industry in Zibo City: the industrial structure has been constantly optimized, the standardization has made new breakthroughs, the project implementation has achieved remarkable results, and the technological level has realized constant improvement. It found out the problems that restrict the development of modern vegetables in Zibo City: small-scale scattered planting accounts for a large proportion, vegetable output rate is not high, product quality supervision is difficult, and some vegetable farmers are low in technological quality. In view of the current situation and existing problems of vegetable development in Zibo City, it came up with recommendations for accelerating the development of modern vegetable industry, including driving through project leading, to achieving innovative development, accelerating scientific and technological training and strengthening talent support, developing new organizations to promote industrial upgrading, strengthening quality supervision and improving vegetable quality, and industrial integration and development to expand and strengthen the vegetable industry.
Regression-based model predicting cost contingencies for road network projects
Creators: name: Ammar, Taher
name: Abdel-Monem, Mohamed
name: El-Dash, Karim
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Cost contingencies represent a significant markup percentage for construction projects. Many construction projects experience cost overruns due to unexpected events before or during the construction phase. Determining the cost contingency for construction projects is one of the most frequent and widespread financial problems many countries face. Since the amount included in the estimates is always insufficient to absorb the actual cost overruns of the project. The main objective of this paper is to develop a simple realistic regression model for predicting the appropriate contingency amount for road network projects before the bidding stage. The regression model has been developed based on data from real case studies for 75 road network projects to adequately consider all potential risks may face the project. Good-of-fit tests were used to select the best-fitting statistical distribution for a given dataset. Based on the analysis of selected data, the log-logistic probability distribution function is the best-fit curve representing cost overrun behavior, and the cumulative distribution function has been used to determine the realistic probability of incurred cost overrun. Based on the analysis of real case studies, it is suggested that an average of 59.722% be used as a cost overrun contingency amount for road network projects. The study outcomes will help practitioners and researchers improve future accuracy/calculations of contingency amount for road construction projects and improve the decision-making process.