cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stimulated Brillouin scattering and Brillouin-coupled four-wave-mixing in a silica microbottle resonator
Creators: name: Asano, Motoki
name: Takeuchi, Yuki
name: Özdemir, Şahin Kaya
name: Ikuta, Rikizo
name: Yang, Lan
name: Imoto, Nobuyuki
name: Yamamoto, Takashi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report the first observation of stimulated Brillouin scattering (SBS) with Brillouin lasing, and Brillouin-coupled four-wave-mixing (FWM) in an ultra-high-Q silica microbottle resonator. The Brillouin lasing was observed at the frequency of $Ω_B=2π\times10.4$ GHz with a threshold power of $0.45$ mW. Coupling between Brillouin and FWM was observed in both backward and forward scattering directions with separations of $2Ω_B$. At a pump power of $10$ mW, FWM spacing reached to 7th and 9th order anti-Stokes and Stokes, respectively.
Determinantal structure and bulk universality of conditional overlaps in the complex Ginibre ensemble
Creators: name: Akemann, Gernot
name: Tribe, Roger
name: Tsareas, Athanasios
name: Zaboronski, Oleg
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In these proceedings we summarise how the determinantal structure for the conditional overlaps among left and right eigenvectors emerges in the complex Ginibre ensemble at finite matrix size. An emphasis is put on the underlying structure of orthogonal polynomials in the complex plane and its analogy to the determinantal structure of $k$-point complex eigenvalue correlation functions. The off-diagonal overlap is shown to follow from the diagonal overlap conditioned on $k\geq2$ complex eigenvalues. As a new result we present the local bulk scaling limit of the conditional overlaps away from the origin. It is shown to agree with the limit at the origin and is thus universal within this ensemble.
description: 17 pages, proceedings of "Random Matrix Theory: Applications in the era of information theory", April 29 - May 3 2019, Krakow, Poland
Global Scaling Symmetry, Noether Charge and Universality of Shear Viscosity
Creators: name: Liu, Hai-Shan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently it was established in Einstein-Maxwell-Dilaton gravity that the KSS viscosity/entropy ratio associated with AdS planar black holes can be viewed as the boundary dual to the generalized Smarr relation of the black holes in the bulk. In this paper we establish this relation in Einstein gravity with general minimally-coupled matter, and also in theories with an additional non-minimally coupled scalar field. We consider two examples for explicit demonstrations.
description: 16 pages, no figure
Do children have asymmetrical expectations about sharing in parent-child relationships?
Creators: name: Garcia, Vivian
name: Thomas, Ashley J.
name: Saxe, Rebecca
name: Sommerville, Jessica
name: Garcia, Maria Garcia
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Developmental Psychology
subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This is an updated pre-registration with more details about planned analyses etc. The person analyzing and making decisions about analysis (Ashley Thomas) was not involved in collecting the data and has not had access to it.
Higher-order Time-Symmetry-Breaking Phase Transition due to meeting of an Exceptional Point and Fano Resonance
Creators: name: Tanaka, Satoshi
name: Garmon, Savannah
name: Kanki, Kazuki
name: Petrosky, Tomio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have theoretically investigated the time-symmetry breaking phase transition process for two discrete states coupled with a one-dimensional continuum by solving the nonlinear eigenvalue prob- lem for the effective Hamiltonian associated with the discrete spectrum. We obtain the effective Hamiltonian with use of the Feshbach-Brillouin-Wigner projection method. Strong energy depen- dence of the self-energy appearing in the effective Hamiltonian plays a key role in the time-symmetry breaking phase transition: as a result of competition in the decay process between the Van Hove singularity and the Fano resonance, the phase transition becomes a higher-order transition when both the two discrete states are located near the continuum threshold.
description: 13 pagese, 10 figures
Optimization of Energy Storage system for Dc Powered Home: ( A case study of Tullu Gudo in Ziway Lake Island
Creators: name: Anteneh Girma
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2021
Subjects: DC supply, Energy storage system, Renewable energy resource, Solar radiation, Standby loss

description: Renewable energy resource using photovoltaic (PV) panels offers an alternative and cost effective
 solution for DC powered home where the grid is not connected. However, one of the main
 drawbacks of renewable energy resource is the change in energy production depending on weather
 condition which has an influence on the system. To make PV system reliable and affordable supply
 of power, the energy storage system plays a vital role by supplying a continuous power demand to
 the load. When the solar radiation varies, the energy storage charge/discharge process shows
 some fluctuation, this situation is not good for battery life and system voltage. The batteries are
 used to balance the low frequency surges, due to its low power density and low charge/discharge
 process. In this thesis work, supercapacitor is used to mitigate the fluctuation of charging
 /discharging of the battery. The supercapacitor are used to balance the high frequency power
 surge, because of its high power density and high charge/discharge process. The method is based
 on decoupling of low and high frequency power components and utilizes error current of the
 battery to control the supercapacitor. Thus, optimize the fluctuation and the current stress occurs
 on the battery. Furthermore; the DC supply system has been compared to the existing alternating
 current (AC) system in terms of losses on the feeder, rectifier and standby loss. Based on this
 investigation, it is concluded that 120V DC system is by 3.64% energy efficient compared to the
 conventional 220V AC voltage system. Two scenarios, namely only with battery storage system
 and battery with supercapacitor have been compared by considering the primary load demand for
 solar radiation variation from 670 w/m2 to 480w/m2 and from 480 w/m2 to 0 w/m2. The goal is to
 evaluate the energy storage device capability to power DC home with reliable power against
 change of power output from the solar system. The simulation is conducted using MATLAB
 SIMULINK software. From the enquiry, the battery with supercapacitor have 27.66% DC at 480
 w/m2 bus voltage fluctuation improvements. Beside this, the battery with supercapacitor compared
 with without supercapacitor has reduction of battery peak current up to 3.51% and 6.29% at
 radiation level of 670 w/m2 and 480 w/m2 respectively.
Gamow-Teller strength distributions and neutrino energy loss rates due to chromium isotopes in stellar matter
Creators: name: Nabi, Jameel-Un
name: Shehzadi, Ramoona
name: Fayaz, Muhammad
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Gamow-Teller transitions in isotopes of chromium play a consequential role in the presupernova evolution of massive stars. $β$-decay and electron capture rates on chromium isotopes significantly affect the time rate of change of lepton fraction ($\dot{Y_{e}}$). Fine-tuning of this parameter is one of the key for simulating a successful supernova explosion. The (anti)neutrinos produced as a result of electron capture and $β$-decay are transparent to stellar matter during presupernova phases. They carry away energy and this result in cooling the stellar core. In this paper we present the calculations of Gamow-Teller strength distributions and (anti)neutrino energy loss rates due to weak interactions on chromium isotopes of astrophysical importance. We compare our results with measured data and previous calculations wherever available.
description: 22 pages, 12 figures, 5 tables. arXiv admin note: text overlap with arXiv:1602.06134
Monolayer MXenes: promising half-metals and spin gapless semiconductors
Creators: name: Gao, Guoying
name: Ding, Guangqian
name: Li, Jie
name: Yao, Kailun
name: Wu, Menghao
name: Qian, Meichun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Half-metals and spin gapless semiconductors are promising candidates for spintronic applications due to the complete (100%) spin polarization of electrons around the Fermi level. Based on recent experimental and theoretical findings of graphene-like monolayer transition metal carbides and nitrides (also known as MXenes), we demonstrate from first-principles calculations that monolayer Ti2C and Ti2N exhibit nearly half-metallic ferromagnetism with the magnetic moments of 1.91 and 1.00 UB per formula unit, respectively, while monolayer V2C is a metal with instable antiferromagnetism, and monolayer V2N is a nonmagnetic metal. Interestingly, under a biaxial strain, there is a phase transition from nearly half-metal to truly half-metal, spin gapless semiconductor, and metal for monolayer Ti2C. Monolayer Ti2N is still a nearly half-metal under a proper biaxial strain. Large magnetic moments can be induced by the biaxial tensile and compressive strains for monolayer V2C and V2N, respectively. We also show that the structures of these four monolayer MXenes are stable according to the calculated formation energy and phonon spectrum. Our investigations suggest that, unlike monolayer graphene, monolayer MXenes Ti2C and Ti2N without vacancy, doping or external electric field exhibit intrinsic magnetism, especially the half-metallic ferromagnetism and spin gapless semiconductivity, which will stimulate further studies on possible spintronic applications for new two-dimensional materials of MXenes.
description: Accepted by Nanoscale (2016-3-26)
Identifying which movies appeal to high-openness individuals using their plot keywords
Creators: name: Rentfrow, Jason
name: Sudeep Bhatia
name: Nave, Gideon
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Personality and Social Contexts
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Movies
subject: Openness
subject: Personality
subject: Text

description: The study intends to evaluate the predictive performance of an algorithm that relies on movies’ plot keywords on IMDb to estimate the movies’ appeal to audiences that differ in their level of openness to experience. All information is available under "files" in a PDF document.
Ethnic Diversity and Social Integration - What are the Consequences of Ethnic Residential Boundaries and Halos for Social Integration in Germany? Update after initial review
Creators: name: Schaeffer, Merlin
name: Jünger, Stefan
Publisher: name: OSF Registries
Year: 2020
Subjects: subject: Social Statistics
subject: Race and Ethnicity
subject: Political Science
subject: FOS: Political science
subject: Social and Behavioral Sciences
subject: Sociology
subject: FOS: Sociology

description: Does ethnic diversity erode the social integration of contemporary mass-scale societies? Continued immigration and corresponding growing ethnic, racial, and religious diversity have prompted this important and highly controversial question. This article gives a brief introduction to the scientific literature on this question and derives from it a gap that it seeks to address: According to a small number of studies on related but different topics, ethnic diversity may be particularly detrimental to social integration if it takes shape as one of two specific types of ethnic residential segregation. The contested boundaries hy-pothesis has it that border regions sandwiched between homogeneous ethnic enclaves are particularly conflict prone and characterized by increased rates of crime. The halo-effect hypothesis claims that people who live in homogenous neighborhoods that border on ethnically diverse ones (or are even encircled by them) are more likely to vote for right-wing populist parties. In this article, we expand both approaches to the study of so-cial integration in theoretical and empirical terms. With respect to theory building, we dis-cuss why social integration, as indicated by social trust and community attachment, should suffer from these two types of ethnic segregation. To test these claims empirically, we use data from the geo-coded German General Social Survey (ALLBUS/GGSS) 2016 and 2018 that we merge with 100mX100m spatial grid data from the German Census 2011. These data allow us to apply edge detection techniques to identify ethnic residential boundaries, and our recently developed donut-method to measure ethnic residential ha-los. Our pre-registered study is the first investigation into the arguably important question whether ethnic residential boundaries and halos erode social integration.
Do External Threats Depolarize Americans? An Experimental Test in the Shadow of China's Rise
Creators: name: Yeung, Eddy
name: Xu, Weifang
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: American Politics
subject: Political Science
subject: FOS: Political science
subject: International Relations
subject: Social and Behavioral Sciences

description: Do external threats unite Americans? While the previous literature and various foreign-policy pundits suggest they do, the latest scholarship argues that, in the contemporary political climate where partisans are highly polarized, security threats from foreign adversaries do not depolarize Americans. In this project, we challenge this recent but widely accepted narrative. We theorize that whether external threats depolarize Americans’ foreign policy preferences depends not only on partisan cues—as the current literature suggests—but also on pre-existing polarization patterns. When polarized citizens are subjected to partisan cues, Democrats and Republicans will update their policy preferences differentially and, given their pre-existing polarization, external threats can promote partisan unity in turn. To test our theory, we design a survey experiment that primes American partisans the security threats from China, while randomizing the sender of such prime. We hypothesize that when pre-existing polarization exists—such that Republicans’ support for aggressive policy response to China is much higher than Democrats’ support for the same policy—the threat communicated by Democratic politicians will disproportionately boost Democrats’ endorsement of such policy, thereby converging the foreign policy preferences between the two parties. We also investigate the implications of our argument on affective polarization.
The Role of Sociodemographic Factors on the Acceptability of Digital Mental Health Care: A Scoping Review Protocol
Creators: name: Abouzeid, Nagi
name: Lal, Shalini
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Health Information Technology
subject: Psychiatric and Mental Health
subject: Medicine and Health Sciences
subject: Rehabilitation and Therapy
subject: Mental and Social Health
subject: Social and Behavioral Sciences
subject: Acceptability
subject: Digital Mental Health Care
subject: Sociodemographic Factors

description: Introduction: Many individuals experiencing mental health complications face barriers when attempting to access services. To bridge this care gap, digital mental health innovations (DMHI) have proven to be valuable additions to in-person care by enhancing access to care. An important aspect to consider when evaluating the utility of DMHI is perceived acceptability. However, it is unclear whether diverse sociodemographic groups differ in their degree of perceived acceptability of DMHI. Objective: This scoping review aims to synthesize evidence on the role of socio-demographic factors (e.g., age, gender) in the perceived acceptability of DMHI among individuals seeking mental health care. Methods: Guided by the JBI Manual of Evidence Synthesis, chapter on Scoping Review, a search strategy developed according to the PCC framework will be implemented in MEDLINE and then adapted to four electronic databases (i.e., CINAHL, MEDLINE, PsycINFO, and EMBASE). The study selection strategy will be piloted by two reviewers on subsets of 30 articles until agreement among reviewers reaches 90%, after which one reviewer will complete the remaining screening of titles and abstracts. The full-text screening, data extraction strategy, and charting tool will be completed by one reviewer and then validated by a second member of the team. Main findings will be presented using tables and figures. Expected contributions: This scoping review will examine the extent to which sociodemographic factors have been considered in the digital mental health literature. Also, the proposed review may help determine whether certain populations have been associated with a lower level of acceptability within the context of digital mental health care. This investigation aims to favor equitable access to DMHI among diverse populations.
Synthesis of optical spring potentials in optomechanical systems
Creators: name: Slatyer, Harry J.
name: Guccione, Giovanni
name: Cho, Young-Wook
name: Buchler, Ben C.
name: Lam, Ping Koy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a method to tailor the potential experienced by a moveable end mirror in a cavity optomechanical system by specifying the spectral properties of the input field. We show that by engineering the power spectral density of the cavity input field a desired force function can be approximated, with the accuracy of the approximation limited only by the linewidth of the cavity. The very general technique presented here could have applications in many kinds of optomechanical systems, particularly those used for sensing and metrology. We demonstrate the method by applying it to improve the sensitivity of a particular gravity measurement.
description: 9 pages, 4 figures
Opportunities of Harvesting Solar Energy from Condominium Communal open spaces (The Case of Addis Ababa
Creators: name: Haftom Yohannes
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2021
Subjects: Landscape, Solar Energy, Early Design Phase, Effective Solar Space, Communal open Space.

description: This thesis work is carried out to worth the integration of landscape architecture with solar
 devices for harvesting solar energy from condominium communal open spaces. Luckily,
 Ethiopia has high potential in solar energy, and a growing number of literature and case studies
 are discussing about the global acceptance of applying solar technology in landscape
 architecture. As per the observation and interview were done; at night time, those communal
 open spaces have poor physical setting and their socioeconomic impact was visible understood.
 Following the objective of the research; the research approach and methodology was set-out,
 and tools: Revit 360 software to identify the effect solar space, Solar GIs prospect to assess
 solar radiation from 10 coordinate points of Addis Ababa, and Real Time Landscaping to
 forward solar integrated landscape design were used.
 After the data was analyzed, the result implies: the ideal ESS(Effective Solar Space) of the
 two sample communal open spaces namely “Kilinto” and “Crown” condominium sites is
 obtained 565.84 m2 and 2277.29m2 out-of the total 2122.5m2 and 6734.5 m2 areal coverage
 respectively. In Addis Ababa, the solar potential also oscillates between 4.425 and 4.66
 Kwh/Kwp per day while using Mono PVCsi panel device with the suggested installation of 180
 º azimuth orientation and 15 º panel tilted angle. In general, identification of Effective Solar
 Space is critical in EDP (Early Design Phase) for a loud cost-effectiveness, for harnessing wellestimated solar energy and for meaningful solar-landscaping design integration too. Hereafter,
 the government should use the opportunity of enormous urban condominium open spaces
 existence for generating of solar energy with mutual beneficiary of residents. Correspondingly,
 architects should also be active on customizing of solar energy with their design concepts
 through adapting simple site solar analysis.
EMOTIONAL ARTIFICIAL INTELLIGENCE IN EDUCATION
Creators: name: Elkhova, Oxana
Publisher: name: figshare
Year: 2023
Subjects: Philosophy of cognition

description: The development of emotional artificial intelligence has become very popular in modern scientific research. The last two decades have been marked by significant advances in artificial intelligence in object recognition, categorization, and decision making. Artificial intelligence systems are at the forefront of research, demonstrating a growing ability to learn without human control, with limited learning data, and to deal with unformed and uncertain information. There is an attempt to create systems with artificial intelligence as close as possible in the direction of the ability to flexibly classify information and use it as the basis for decision-making. By and large, this is a movement towards the creation of «sociable» computers that display their own emotions and respond to the emotions of the user. The creation of computers that display emotions is already a difficult task, since it requires the formalization of concepts and mechanisms that are often not yet fully explored by emotional psychology. The problem is exacerbated by the high level of ambiguity that exists in depicting emotional states and the factors that can be used to detect them. In particular, many people may have different emotional reactions to the same impulse, and this variety depends on the characteristics of a particular person, which are not always obvious. For example, they depend on his goals, preferences, and expectations from the process. Affective Computing – literally translates as emotional computing or emotional artificial intelligence (AI). This is the field of AI that researches and develops systems capable of recognizing, interpreting, processing and simulating human emotions. Such systems are an important part of human-computer interaction.
On conclusive eavesdropping and measures of mutual information in quantum key distribution
Creators: name: Rastegin, Alexey E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address the question of quantifying eavesdropper's information gain in an individual attack on systems of quantum key distribution. It is connected with the concept of conclusive eavesdropping introduced by Brandt. Using the BB84 protocol, we examine the problem of estimating a performance of conclusive entangling probe. The question of interest depends on the choice of a quantitative measure of eavesdropper's information about the error-free sifted bits. The Fuchs--Peres--Brandt probe realizes a very powerful individual attack on the BB84 scheme. In the usual formulation, Eve utilizes the Helstrom scheme in distinguishing between the two output probe states. In conclusive eavesdropping, the unambiguous discrimination is used. Comparing these two versions allows to demonstrate serious distinctions between widely used quantifiers of mutual information. In particular, the so-called Rényi mutual information does not seem to be a completely legitimate measure of an amount of mutual information. It is brightly emphasized with the example of conclusive eavesdropping.
description: 10 pages, one figure. The paper is published in Quantum Information Processing, Howard Brandt memorial issue
Context Tree based Image Contour Coding using A Geometric Prior
Creators: name: Zheng, Amin
name: Cheung, Gene
name: Florencio, Dinei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: If object contours in images are coded efficiently as side information, then they can facilitate advanced image / video coding techniques, such as graph Fourier transform coding or motion prediction of arbitrarily shaped pixel blocks. In this paper, we study the problem of lossless and lossy compression of detected contours in images. Specifically, we first convert a detected object contour composed of contiguous between-pixel edges to a sequence of directional symbols drawn from a small alphabet. To encode the symbol sequence using arithmetic coding, we compute an optimal variable-length context tree (VCT) $\mathcal{T}$ via a maximum a posterior (MAP) formulation to estimate symbols' conditional probabilities. MAP prevents us from overfitting given a small training set $\mathcal{X}$ of past symbol sequences by identifying a VCT $\mathcal{T}$ that achieves a high likelihood $P(\mathcal{X}|\mathcal{T})$ of observing $\mathcal{X}$ given $\mathcal{T}$, and a large geometric prior $P(\mathcal{T})$ stating that image contours are more often straight than curvy. For the lossy case, we design efficient dynamic programming (DP) algorithms that optimally trade off coding rate of an approximate contour $\hat{\mathbf{x}}$ given a VCT $\mathcal{T}$ with two notions of distortion of $\hat{\mathbf{x}}$ with respect to the original contour $\mathbf{x}$. To reduce the size of the DP tables, a total suffix tree is derived from a given VCT $\mathcal{T}$ for compact table entry indexing, reducing complexity. Experimental results show that for lossless contour coding, our proposed algorithm outperforms state-of-the-art context-based schemes consistently for both small and large training datasets. For lossy contour coding, our algorithms outperform comparable schemes in the literature in rate-distortion performance.
Democratic Evaluation: How Comparisons Influence Individual Assessments of Democracy
Creators: name: Gandhi, Jennifer
name: Yeung, Eddy
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: American Politics
subject: Comparative Politics
subject: Political Science
subject: FOS: Political science
subject: Social and Behavioral Sciences

description: Public perceptions about how democratic their government is are critical in identifying transgressions against democracy in order to mobilize against democratic backsliding. We investigate the effect of comparisons on the formation of these perceptions. Comparator regimes—across time and space—can serve as "democratic benchmarks" that influence people's evaluations of whether their own government is democratic and whether they are satisfied with democracy as it is practiced where they live. We preregister two survey experiments that investigate the effect of comparisons on popular attitudes toward democracy in states across the United States. By asking respondents directly about state-level democracy, we first seek to make a descriptive contribution—one that will enable us to compare perceptions of democracy at the subnational level with objective measures of it. We also seek to provide causal evidence on whether comparisons affect popular attitudes about democracy.
A Calibration Scheme for Non-Line-of-Sight Imaging Setups
Creators: name: Klein, Jonathan
name: Laurenzis, Martin
name: Hullin, Matthias B.
name: Iseringhausen, Julian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The recent years have given rise to a large number of techniques for "looking around corners", i.e., for reconstructing occluded objects from time-resolved measurements of indirect light reflections off a wall. While the direct view of cameras is routinely calibrated in computer vision applications, the calibration of non-line-of-sight setups has so far relied on manual measurement of the most important dimensions (device positions, wall position and orientation, etc.). In this paper, we propose a semi-automatic method for calibrating such systems that relies on mirrors as known targets. A roughly determined initialization is refined in order to optimize a spatio-temporal consistency. Our system is general enough to be applicable to a variety of sensing scenarios ranging from single sources/detectors via scanning arrangements to large-scale arrays. It is robust towards bad initialization and the achieved accuracy is proportional to the depth resolution of the camera system. We demonstrate this capability with a real-world setup and despite a large number of dead pixels and very low temporal resolution achieve a result that outperforms a manual calibration.
Cryptovalsa rabenhorstii Sacc., Myc. Ven.
Creators: name: Mehrabi, Mehdi
name: Hemmati, Roghayeh
name: Vasilyeva, Larissa N.
name: Trouillas, Florent P.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Sordariomycetes
Xylariales
Diatrypaceae
Cryptovalsa
Cryptovalsa rabenhorstii

description: Cryptovalsa rabenhorstii (Nitschke) Sacc., Myc. Ven. 135, tab. XIV. Fig. 3
 Basionym: Valsa rabenhorstii Nitschke Pyr. Germ.
 Synonym: Sphaeria spiculosa var. robiniae Rabenh., in Exsicc. Klotzsch, Herb. myc.
 Saprobic on decaying wood. Sexual morph: Stromata in the bark of dead branches (2 cm diam), effuse, covered by the epidermis which is not discolored. Perithecia buried in the inner bark, black and shin inside, either scattered in groups of 5–25 perithecia or rarely in larger groups, circinately or linear arranged, 400–600 μm diam, delimited by a black zone in the host tissues, ostioles mostly sheltered around a white to yellowish ectostroma, ostioles poorly emerging. Asci clavate, long and slender pedicellate, polysporous, 115–175 (–200) × 13–20 μm. Ascospores hyaline when immature turning yellowish to light-brown at maturity, sub-allaintoid to cylindrical, smooth, aseptate (12−)13−15 (−16)×(2.5−)3−4(−5) μm.
 Asexual morph: immersed in bark, pycnidiainterspersed amongst stromata, rare, 0.5–2 mm diam, subconical, delimited by a black zone in the host tissues, hymenium labyrinthiform, light yellow, surface white to grey, powdery, with yellow stratum of spores. Conidia filiform and arcuate, 17–22(–25) × 0.8–1 μm.
 Cultural characteristics:—Colonies irregular, with abundant aerial mycelia reaching the lid of Petri-dishes, white to primrose (23 ,, b) at the surface and primrose to amber (19 , b) at the reverse after 2 weeks in the dark at 24 °C, covering 75 mm Petri-dish after 5 days at 24°C.
 Specimen examined:— IRAN, Mazandaran Province, Sari City, on dead branches of Citrus sp., 5 November 2014, M. Mehrabi, MNC72 (IRAN 16683F, IRAN 2346C).
 Notes:—This species resembles closely C. rabenhorstii on Vitis vinifera in Australia (Trouillas et al. 2011). However, this fungus has a black zone that surrounds the globose perithecia within the host tissue. The pathogenicity of this species on grapevine has been confirmed (Pitt et al. 2013). The results of the phylogenetic analyses of the ITS sequences supported the morphological identification (bootstrap value= 100% in MP and 99% in NJ, Fig. 1). To our knowledge, no members of the genus Citrus have been reported as substrate for this species. The present record is the first report of this species in Iran.
description: Published as part of Mehrabi, Mehdi, Hemmati, Roghayeh, Vasilyeva, Larissa N. & Trouillas, Florent P., 2016, Diatrypella macrospora sp. nov. and new records of diatrypaceous fungi from Iran, pp. 43-55 in Phytotaxa 252 (1) on pages 48-49, DOI: 10.11646/phytotaxa.252.1.4, http://zenodo.org/record/13677220
Numerical Investigation the Analysis of Single Pile in Clay Soil Subjected to Coupled Lateral Forces & Moments
Creators: name: Dawit Weleli
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2021
Subjects: Laterally Loaded Piles, Short Pile, Long Pile, Combined Loading, Clay, 3D Finite Difference Method.

description: Laterally loaded piles are subjected to significant horizontal forces and moments, such as
 marine and offshore structures, retaining structures, and tall buildings under wind or seismic
 loading. This study has investigated the analysis of a single pile in clay soil subjected to coupled
 lateral forces and moments by using three-dimensional finite-difference method both in short
 rigid pile and long elastic pile using continuum models built-in FLAC3D 6.0 (Fast Lagrangian
 Analysis of Continua in 3 Dimensions) computer program. The soils are modeled using MohrCoulomb constitutive model and the piles are modeled using pile structural element with elastic
 constitutive model. In addition to the investigation of the analysis of a single pile in clay soil
 subjected to coupled lateral forces and moments with and without vertical loading, four
 different groups of parametric analyses have been conducted taking pile soil type, pile length,
 pile width, and load eccentricity. The results showed that for long elastic pile the stiff soil gives
 770.89 KN more lateral load capacity than the soft clay soil, while for the short rigid pile the
 stiff soil gives 506.85 KN more lateral load capacity than the soft clay soil. Increasing the width
 of the pile has a significant increment in lateral loading capacity of the pile up to a diameter of
 2.0m. Taking the maximum 1.035MN and minimum 142.19KN lateral load capacities
 associated with the 30m and 5m pile lengths respectively, increasing the length of the pile has
 a significant increment in lateral loading capacity of the pile. The load eccentricity has a
 significant decrement in lateral loading capacity of the pile up to e/L ratio of 6. For a pile
 subjected to coupled lateral forces and moments, considering three analyses it showed that the
 maximum lateral load capacity is without moment which is 716.61KN, 620.41KN and
 470.02KN while the minimum lateral load capacity of 431.98KN, 389.47KN and 409.13KN
 respectively achieved at 750KNm applied moment load, giving a for both short rigid pile and
 long elastic pile the maximum lateral load capacity decreases with increasing applied moment,
 which gives similar effect on layered clay soils. Considering the effect of vertical load on
 coupled lateral forces and moments, the additional 500KN vertical loading the pile has decrease
 the lateral load carrying capacity by 22.13% , 22.60%, and 19.72% respectively, giving
 increasing in vertical load decreases the lateral load carrying capacity in coupled lateral load
 and moments system.
Mesoscopic wave physics in fish shoals
Creators: name: Tallon, Benoit
name: Roux, Philippe
name: Matte, Guillaume
name: Guillard, Jean
name: Skipetrov, Sergey E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Ultrasound scattered by a dense shoal of fish undergoes mesoscopic interference, as is typical of low-temperature electrical transport in metals or light scattering in colloidal suspensions. Through large-scale measurements in open sea, we show a set of striking deviations from classical wave diffusion making fish shoals good candidates to study mesoscopic wave phenomena. The very good agreement with theories enlightens the role of fish structure on such a strong scattering regime that features slow energy transport and brings acoustic waves close to the Anderson localization transition.
description: 5 pages, 3 figures + Supplementary text (9 pages 3 figures)
Federated Variance-Reduced Stochastic Gradient Descent with Robustness to Byzantine Attacks
Creators: name: Wu, Zhaoxian
name: Ling, Qing
name: Chen, Tianyi
name: Giannakis, Georgios B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This paper deals with distributed finite-sum optimization for learning over networks in the presence of malicious Byzantine attacks. To cope with such attacks, most resilient approaches so far combine stochastic gradient descent (SGD) with different robust aggregation rules. However, the sizeable SGD-induced stochastic gradient noise makes it challenging to distinguish malicious messages sent by the Byzantine attackers from noisy stochastic gradients sent by the 'honest' workers. This motivates us to reduce the variance of stochastic gradients as a means of robustifying SGD in the presence of Byzantine attacks. To this end, the present work puts forth a Byzantine attack resilient distributed (Byrd-) SAGA approach for learning tasks involving finite-sum optimization over networks. Rather than the mean employed by distributed SAGA, the novel Byrd- SAGA relies on the geometric median to aggregate the corrected stochastic gradients sent by the workers. When less than half of the workers are Byzantine attackers, the robustness of geometric median to outliers enables Byrd-SAGA to attain provably linear convergence to a neighborhood of the optimal solution, with the asymptotic learning error determined by the number of Byzantine workers. Numerical tests corroborate the robustness to various Byzantine attacks, as well as the merits of Byrd- SAGA over Byzantine attack resilient distributed SGD.
Identifiability Conditions for Compressive Multichannel Blind Deconvolution
Creators: name: Mulleti, Satish
name: Lee, Kiryung
name: Eldar, Yonina C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In applications such as multi-receiver radars and ultrasound array systems, the observed signals can often be modeled as a linear convolution of an unknown signal which represents the transmit pulse and sparse filters which describe the sparse target scenario. The problem of identifying the unknown signal and the sparse filters is a sparse multichannel blind deconvolution (MBD) problem and is in general ill-posed. In this paper, we consider the identifiability problem of sparse-MBD and show that, similar to compressive sensing, it is possible to identify the sparse filters from compressive measurements of the output sequences. Specifically, we consider compressible measurements in the Fourier domain and derive identifiability conditions in a deterministic setup. Our main results demonstrate that $L$-sparse filters can be identified from $2L^2$ Fourier measurements from only two coprime channels. We also show that $2L$ measurements per channel are necessary. The sufficient condition sharpens as the number of channels increases asymptotically in the number of channels, it suffices to acquire on the order of $L$ Fourier samples per channel. We also propose a kernel-based sampling scheme that acquires Fourier measurements from a commensurate number of time samples. We discuss the gap between the sufficient and necessary conditions through numerical experiments including comparing practical reconstruction algorithms. The proposed compressive MBD results require fewer measurements and fewer channels for identifiability compared to previous results, which aids in building cost-effective receivers.
description: 13 pages, 5 figures
Numerical Investigation on the Deformation Characteristics of Saddle Dam: Case of Grand Ethiopian Renaissance Dam
Creators: name: Biniam Assefa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2021
Subjects: Concrete face rockfill dams, deformation, finite element analysis, PLAXIS, hardening model.

description: The major causes of damages of concrete face rockfill dams (CFRD) is displacement of the dam
 body. Many historical evidences proved that when the settlement of dam crest is greater than 1%
 of the dam height, cracks on the face slab and openings occur which results in high leakage rate
 resulting in operation problem of the dam. In addition, several high CFRDs have experienced the
 cracking of the concrete face during first reservoir impounding.
 In this study, deformation characteristics of a concrete faced rock-fill dam (CFRD) of the Grand
 Ethiopian Renaissance dam was investigated. Secondary data was used to model the foundation
 and embankment materials. Two dimensional plane strain finite element analyses were carried out
 to assess the displacements in the dam both for construction and impoundment stages by using
 finite element method (FEM) computer program PLAXIS 2D. The hardening soil model is used
 to represent the nonlinear, inelastic and stress dependent behavior of rock-fill materials and HoekBrown model to simulate the foundation rock and linear elastic model is used to represent the
 stress-strain behavior of face slab, Plinth, and access gallery.
 From the numerical investigation of deformation characteristics, the expected maximum crest
 settlement is 10.86cm for end of construction loading condition and 15.28cm for impoundment
 loading condition showing significant crest settlement and deformation of face slab will occur
 during the impoundment stage. For end of construction loading condition, the crest settlement
 using numerical and empirical method shows good agreement average value of 10.86 cm and 10.62
 respectively. The face slab displacement using numerical and empirical method also shows good
 agreement with values of 14.19cm and 9.20cm.
Topological defect formation in 1D and 2D spin chains realized by network of optical parametric oscillators
Creators: name: Hamerly, Ryan
name: Inaba, Kensuke
name: Inagaki, Takahiro
name: Takesue, Hiroki
name: Yamamoto, Yoshihisa
name: Mabuchi, Hideo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A network of optical parametric oscillators is used to simulate classical Ising and XY spin chains. The collective nonlinear dynamics of this network, driven by quantum noise rather than thermal fluctuations, seeks out the Ising / XY ground state as the system transitions from below to above the lasing threshold. We study the behavior of this "Ising machine" for three canonical problems: a 1D ferromagnetic spin chain, a 2D square lattice, and problems where next-nearest-neighbor couplings give rise to frustration. If the pump turn-on time is finite, topological defects form (domain walls for the Ising model, winding number and vortices for XY) and their density can be predicted from a numerical model involving a linear "growth stage" and a nonlinear "saturation stage". These predictions are compared against recent data for a 10,000-spin 1D Ising machine.
description: 34 pages, 15 figures. Preprint of an article submitted for consideration in International Journal of Modern Physics B. [Copyright 2016 World Scientific Publishing Company] [www.worldscientific.com/worldscinet/ijmpb]
[B.4.05.a.1.] Le Pain quotidien
Creators: name: L'Humanité (Périodique)
Publisher: name: École des Hautes Études en Sciences Sociales; Éditions de l'Humanité
Year: 2023
Subjects: http://www.idref.fr/027280470/id
http://www.idref.fr/050613995/id
http://www.idref.fr/027416593/id
http://www.idref.fr/027261468/id
http://www.idref.fr/03470499X/id

Abstract
Convolution Idempotents with a given Zero-set
Creators: name: Siripuram, Aditya
name: Osgood, Brad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We investigate the structure of N-length discrete signals h satisfying h*h=h that vanish on a given set of indices. We motivate this problem from examples in sampling, Fuglede's conjecture, and orthogonal interpolation of bandlimited signals. When N is a prime power, we characterize all such h with a prescribed zero set in terms of digit expansions of nonzero indices in the inverse DFT of h.
title: Annotated bibliography on the rain screen principle
Creators: name: Kerr, D. D.
Publisher: name: National Research Council of Canada. Division Of Building Research
Year: 1985
Subjects: subject: Rainscreen walls
valueUri: urn:ircsubjects:IRC03821
subject: Murs à écran pare-pluie
valueUri: urn:ircsubjects:IRC03821
subject: rain
subject: pluie
subject: watertightness
subject: étanchéité à l'eau
subject: joints (junctions)
subject: joint (liaison)
subject: pressurization
subject: pressurisation
subject: rain screens
subject: écran pare-pluie
subject: rain penetration
subject: pénétration de la pluie

description: The focus of current research at DBR is to determine what factors contribute to the operation of the rain screen and their importance in relation to each other. As a preliminary step to this research, a literature survey was done to determine the extent of research already completed on the open rain screen, especially on the phenomenon of pressure equalization. This bibliography is the result of that survey.
description: Les travaux de recherche actuels qui se déroulent à la DRB sont axés sur l'identification des facteurs qui déterminent le fonctionnement des espaces de décompression ou écrans de pluie et la description de l'importance de ces facteurs les uns par rapport aux autres. Comme étape préliminaire de cette recherche, une recherche bibliographique a été réalisée dans le but de déterminer l'étendue des efforts de recherche déjà menés à bien dans le domaine des écrans de pluie ouverts, et plus particulièrement sur le phénomène de l'équilibrage de pression. Cette bibliographie découle de cette recherche.
Sparse Array Design via Fractal Geometries
Creators: name: Cohen, Regev
name: Eldar, Yonina C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Sparse sensor arrays have attracted considerable attention in various fields such as radar, array processing, ultrasound imaging and communications. In the context of correlation-based processing, such arrays enable to resolve more uncorrelated sources than physical sensors. This property of sparse arrays stems from the size of their difference coarrays, defined as the differences of element locations. Thus, the design of sparse arrays with large difference coarrays is of great interest. In addition, other array properties such as symmetry, robustness and array economy are important in different applications. Numerous studies have proposed diverse sparse geometries, focusing on certain properties while lacking others. Incorporating multiple properties into the design task leads to combinatorial problems which are generally NP-hard. For small arrays these optimization problems can be solved by brute force, however, in large scale they become intractable. In this paper, we propose a scalable systematic way to design large sparse arrays considering multiple properties. To that end, we introduce a fractal array design in which a generator array is recursively expanded according to its difference coarray. Our main result states that for an appropriate choice of the generator such fractal arrays exhibit large difference coarrays. Furthermore, we show that the fractal arrays inherit their properties from their generators. Thus, a small generator can be optimized according to desired requirements and then expanded to create a fractal array which meets the same criteria. This approach paves the way to efficient design of large arrays of hundreds or thousands of elements with specific properties.
description: 16 pages, 9 figures, 1 Table