cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Combined Experimental and Simulatory Evaluation of Thermal and Mechanical Loads on PV Modules
Creators: name: Hirschl, C.
name: Granitzer, M.
name: Spielberger, M.
name: Mühleisen, W.
name: Kraft, M.
name: Kroupa, G.
name: Schicker, J.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3561-3565
description: A key factor for the long-term performance degradation of PV modules is an in-use damage of the
actual solar cells by loads causing (micro-)cracks. Besides external mechanical forces, the main source of these is
forces created by different thermal expansions of the module components, inducing mechanical loads as soon as the
module temperature changes. These thermo-mechanical effects are complex and highly interdependent, also since
they are not only affected by the momentary temperature situation but likewise by the module’s life history. This
becomes an issue since manufacturing and use of PV modules necessarily comprise temperature changes; residual
stresses thus become an inherent part of each module. To achieve a better understanding of these effects, resistant
strain gauge rosettes and temperature sensors have been included in dedicated test mini-modules comprising only one
solar cell each. Using these, the principal strains occurring during lamination and later in thermal cycles simulating
use have been monitored and analysed. It can be shown that the thermal loads of the lamination process impose the
highest stresses on the solar cells, and that this stress magnitude is not correlated to the lamination time. The experiments
also confirm the protective effect of the ethylene/vinyl acetate (EVA) encapsulant for preventing cell fracture.
Related simulations taking into account the highly temperature-dependent material properties of the EVA can qualitatively
reproduce the experimental findings, although a detailed reproduction will requiring future efforts taking
even more effects into account.
title: Cartes de la composition minérale des fourrages naturels : éléments majeurs
Creators: name: De Zborowski, Isolde
name: CIRAD-IEMVT-FRA
Publisher: name: CTA; CIRAD-IEMVT
Year: 1985
Subjects: subject: Élevage
subject: Pâturages
subject: Fourrage vert
subject: Composition chimique
subject: Calcium
subject: Phosphore
subject: Magnesium
subject: Potassium
subject: Tchad
subject: Sahel
subject: Zone soudano-sahélienne
subject: F60 - Physiologie et biochimie végétales
subject: F60 - Plant physiology and biochemistry

description: In : Élevage et potentialités pastorales sahéliennes. Synthèses cartographiques. Tchad = Animal husbandry and Sahelian pastoral potentialities. Cartographic synthesis. Chad. CIRAD-IEMVT. Wageningen : CTA-CIRAD-IEMVT. ISBN 2-85985-117-8
Constraining crystalline color superconducting quark matter with gravitational-wave data
Creators: name: Lin, Lap-Ming
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate the maximum equatorial ellipticity sustainable by compact stars composed of crystalline color-superconducting quark matter. For the theoretically allowed range of the gap parameter $Δ$, the maximum ellipticity could be as large as $10^{-2}$, which is about 4 orders of magnitude larger than the tightest upper limit obtained by the recent science runs of the LIGO and GEO600 gravitational wave detectors based on the data from 78 radio pulsars. We point out that the current gravitational-wave strain upper limit already has some implications for the gap parameter. In particular, the upper limit for the Crab pulsar implies that $Δ$ is less than O(20) MeV for a range of quark chemical potential accessible in compact stars, assuming that the pulsar has a mass $1.4 M_{\odot}$, radius 10 km, breaking strain $10^{-3}$, and that it has the maximum quadrupole deformation it can sustain without fracturing.
description: Minor changes to match the published version
Novices' Learning Barriers When Using Code Examples in Open-Ended Programming
Creators: name: Wang, Wengran
name: Kwatra, Archit
name: Skripchuk, James
name: Gomes, Neeloy
name: Milliken, Alexandra
name: Martens, Chris
name: Barnes, Tiffany
name: Price, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Open-ended programming increases students' motivation by allowing them to solve authentic problems and connect programming to their own interests. However, such open-ended projects are also challenging, as they often encourage students to explore new programming features and attempt tasks that they have not learned before. Code examples are effective learning materials for students and are well-suited to supporting open-ended programming. However, there is little work to understand how novices learn with examples during open-ended programming, and few real-world deployments of such tools. In this paper, we explore novices' learning barriers when interacting with code examples during open-ended programming. We deployed Example Helper, a tool that offers galleries of code examples to search and use, with 44 novice students in an introductory programming classroom, working on an open-ended project in Snap. We found three high-level barriers that novices encountered when using examples: decision, search and integration barriers. We discuss how these barriers arise and design opportunities to address them.
BIPV: Case Studies for Microinverter Applications
Creators: name: Corsi, A.
name: Fabbri, E.
name: Romano, M.
name: Mosa, W.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
Balance of System Components

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3574-3578
description: The increasing penetration of photovoltaic generators in parallel to the grid and the day by day decreasing incentives for these types of installations require a more detailed analysis about the convenience of an investment on PV installation. In particular the building integrated photovoltaic solutions (BIPV) can be, for significant part of the time, affected by shadows caused by the presence of other buildings in the proximity or poles, dormers etc. in the roof. In this paper, various shadow’s conditions with several irradiation intensity affecting the modules are considered and the related I-V curves are displayed with real measurements. Then a simulated model is derived which matchs the results achieved experimentally. For some of the shadow conditions, we will demonstrate with simulation as well as with real experiments the efficacy, on some cases, of the introduction of microinverters
installed on the modules versus one string inverter for the whole string.
Automatised full one-loop renormalisation of the MSSM I: The Higgs sector, the issue of tan(beta) and gauge invariance
Creators: name: Baro, N.
name: Boudjema, F.
name: Semenov, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We give an extensive description of the renormalisation of the Higgs sector of the minimal supersymmetric model in SloopS. SloopS is an automatised code for the computation of one-loop processes in the MSSM. In this paper, the first in a series, we study in detail the non gauge invariance of some definitions of tan(beta). We rely on a general non-linear gauge fixing constraint to make the gauge parameter dependence of different schemes for tan(beta) at one-loop explicit. In so doing, we update, within these general gauges, an important Ward-Slavnov-Taylor identity on the mixing between the pseudo-scalar Higgs, A^0, and the Z^0. We then compare the tan(beta) scheme dependence of a few observables. We find that the best tan(beta) scheme is the one based on the decay A^0 -> tau^+ tau^- because of its gauge invariance, being unambiguously defined from a physical observable, and because it is numerically stable. The oft used DRbar scheme performs almost as well on the last count, but is usually defined from non-gauge invariant quantities in the Higgs sector. The use of the heavier scalar Higgs mass in lieu of tan(beta) though related to a physical parameter induces too large radiative corrections in many instances and is therefore not recommended.
description: 34 pages, 1 figure, typos corrected, accepted for publication in Phys. Rev. D
Architectural Award Building-Integrated Solar Technology 2011
Creators: name: Becker, G.
name: Flade, F.
name: Krippner, R.
name: Schiebelsberger, B.
name: Weber, W.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
PV and Architecture

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3839-3842
description: The architectural award for building-integrated solar technology granted by Solarenergieförderverein Bayern
(the Bavarian association for the promotion of solar energy, in German abbreviated as SeV) aims at promoting excellence in
planning and designing of building-integrated solar power systems. This award makes accessible the exemplary solutions in
qualitatively sophisticated architecture to the greater public. This is the fifth time SeV has sponsored a competition dedicated
to integrating solar technology into architecture. The entries submitted for the competition in 2011 show how architects have
become increasingly interested in solar technology. Private homes continue to hold a dominant position as regards the building
types, however, the scope of requirements regarding building function remains varied in general. It has been pleasing to
follow the positive developments in the quality of architectural and technical solutions used in building small apartments,
including a number of show homes. There has also been greater interest in integrating solar collectors into building façades.
Solar technology is even being incorporated into installations in public spaces and active media façades.
EFFECT OF FIRING CONDITIONS ON PROPERTIES OF DAN KWIAN POTTERY
Creators: name: Sutham Srilomsak
name: Wanwisa Pattanasiriwisawa
name: Weenawan Somphon
name: Waraporn Tanthanuch
name: Nonglak Meethong
Publisher: name: Suaranaree University of Technology
Year: 2014
Subjects: Dan Kwian, pottery, ceramic, firing

description: 3, 21, Suranaree Journal of Science and Technology
Confinement-induced zero-bias peaks in conventional superconductor hybrids
Creators: name: Cayao, Jorge
name: Burset, Pablo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Majorana bound states in topological superconductors have been predicted to appear in the form of zero-bias conductance peaks of height $2e^{2}/h$, which represents one of the most studied signatures so far. Here, we show that quasi zero-energy states, similar to Majorana bound states, can naturally form in any superconducting hybrid junction due to confinement effects, without relation to topology. Remarkably, these topologically trivial quasi zero-energy states produce zero-bias conductance peaks, thus mimicking the most representative Majorana signature. Our results put forward confinement as an alternative mechanism to explain the ubiquitous presence of trivial zero-bias peaks and quasi zero-energy states in superconductor hybrids.
description: 13 pages, 7 figures
title: Carte de la composition minérale des fourrages naturels : oligo-éléments
Creators: name: De Zborowski, Isolde
name: CIRAD-IEMVT-FRA
Publisher: name: CTA; CIRAD-IEMVT
Year: 1985
Subjects: subject: Élevage
subject: Pâturages
subject: Fourrage vert
subject: Composition chimique
subject: Oligo-élement
subject: Cuivre
subject: Zinc
subject: Manganèse
subject: Cobalt
subject: Tchad
subject: Sahel
subject: Zone soudano-sahélienne
subject: F60 - Physiologie et biochimie végétales
subject: F60 - Plant physiology and biochemistry

description: In : Élevage et potentialités pastorales sahéliennes. Synthèses cartographiques. Tchad = Animal husbandry and Ssahelian pastoral potentialities. Cartographic synthesis. Chad. CIRAD-IEMVT. Wageningen : CTA-CIRAD-IEMVT. ISBN 2-85985-117-8
Time-dependent analytic solutions of quasi-steady shocks with cooling
Creators: name: Lesaffre, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I present time-dependent analytical solutions of quasi-steady shocks with cooling, where quasi-steady shocks are objects composed of truncated steady-state models of shocks at any intermediate time. I compare these solutions to simulations with a hydrodynamical code and finally discuss quasi-steady shocks as approximations to time-dependent shocks. Large departure of both the adiabatic and steady-state approximations from the quasi-steady solution emphasise the importance of the cooling history in determining the trajectory of a shock.
description: 14 pages, 4 figures, published in Geophysical and Astrophysical Fluid Dynamics
Quantum fluctuations in the transverse Ising spin glass model: A field theory of random quantum spin systems
Creators: name: Takahashi, Kazutaka
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We develop a mean-field theory for random quantum spin systems using the spin coherent state path integral representation. After the model is reduced to the mean field one-body Hamiltonian, the integral is analyzed with the aid of several methods such as the semiclassical method and the gauge transformation. As an application we consider the Sherrington-Kirkpatrick model in a transverse field. Using the Landau expansion and its improved versions, we give a detailed analysis of the imaginary-time dependence of the order parameters. Integrating out the quantum part of the order parameters, we obtain the effective renormalized free energy written in terms of the classically defined order parameters. Our method allows us to obtain the spin glass-paramagnetic phase transition point $Γ/J\sim 1.62$ at T=0.
description: 12 pages, 3 figures; minor changes, proofread for publication
A Silicon Nano 3D Optimized Design with Embeded Nanolayer for P.V. Ultra High Efficiency without Concentrator - From Disruptive Concept to a Family of Disruptive Products
Creators: name: Kuznicki, Z.T.
name: Basta, M.
name: Hosatte, M.
name: Meyrueis, P.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
New Materials, Cells and Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 389-392
description: Nanostructures based on amorphous/crystalline differences can be grown by a new fabrication process
using common PV industry techniques. As for other nanostructures created by chemical variations, confinement
properties may enhance carrier multiplication effects. For crystalline silicon test samples with embedded amorphous
silicon nano-layer, an increase of quantum efficiency after etching of the passivation layer was experimentally
observed. Considering results of previous works, an explanation based solely on the activation of electron
multiplication was suggested. The simulation indicated that the extra energy required to generate a second electron
was lower than the band gap. Therefore, Low-Energy Electron Multiplication (LEEM) was observed in singlejunction
all-silicon device. LEEM could be further enhanced by spatial optimization of the nanostructures. This new
effect opens perspectives for the development of ultra-high efficiency solar cells without concentrator and a family of
disruptive optoelectronic products might emerge from these progresses.
Relativistic Outflows in two quasars in the Chandra Deep Field South
Creators: name: Zheng, Z. Y.
name: Wang, J. X.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we provide new 1 Ms $Chandra$ ACIS spectra of two quasars in the Chandra Deep Field South (CDF-S), which were previously reported to show strong and extremely blueshifted X-ray emission/absorption line features in previous 1 Ms spectra, with outflowing bulk velocity $v\sim$0.65-0.84c. In the new 1 Ms spectra, the relativistic blueshifted line feature is solidly confirmed in CXO CDFS J033225.3-274219 (CDFS 46, $z$ = 1.617), and marginally visible in CXO CDFS J033260.0-274748 (CDFS 11, $z$ = 2.579), probably due to the increased Chandra ACIS background in the new 1 Ms exposure. The new data rule out the possibility (though very tiny already based on the old 1Ms data) that the two sources were selected to be unusual due to noise spikes in the spectra. The only likely interpretation is extremely blueshifted iron absorption/emission line or absorption edge due to relativistic outflow. We find that the rest frame emission line center in CDFS 46 marginally decreased from 16.2 keV to 15.2 keV after 7 years. The line shift can be due to either decreasing outflowing velocity or lower ionization level. Including the two quasars reported in this paper, we collect from literature a total of 7 quasars showing blueshifted emission or absorption line feature with $v\geq0.4c$ in X-ray spectra, and discuss its connection to jet and/or BAL (broad absorption line) outflow.
description: 16 pages, 4 figures, ApJ accepted
Chaoticity of the Wet Granular Gas
Creators: name: Fingerle, A.
name: Herminghaus, S.
name: Zaburdaev, V. Yu.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this work we derive an analytic expression for the Kolmogorov-Sinai entropy of dilute wet granular matter, valid for any spatial dimension. The grains are modelled as hard spheres and the influence of the wetting liquid is described according to the Capillary Model, in which dissipation is due to the hysteretic cohesion force of capillary bridges. The Kolmogorov-Sinai entropy is expanded in a series with respect to density. We find a rapid increase of the leading term when liquid is added. This demonstrates the sensitivity of the granular dynamics to humidity, and shows that the liquid significantly increases the chaoticity of the granular gas.
description: 13 pages, 10 figures, Physical Review E
The Second Born Corrections to the Electrical and Thermal Conductivities of Dense Matter in the Liquid Metal Phase
Creators: name: Itoh, Naoki
name: Uchida, Shinsuke
name: Sakamoto, Yu
name: Kohyama, Yasuharu
name: Nozawa, Satoshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The second Born corrections to the electrical and thermal conductivities are calculated for the dense matter in the liquid metal phase for various elemental compositions of astrophysical importance. Inclusion up to the second Born corrections is sufficiently accurate for the Coulomb scattering of the electrons by the atomic nuclei with Z < 26. Our approach is semi-analytical, and is in contrast to that of the previous authors who have used fully numerical values of the cross section for the Coulomb scattering of the electron by the atomic nucleus. The merit of the present semi-analytical approach is that this approach affords us to obtain the results with reliable Z-dependence and ρ-dependence. The previous fully numerical approach has made use of the numerical values of the cross section for the scattering of the electron off the atomic nucleus for a limited number of Z-values, Z=6, 13, 29, 50, 82, and 92, and for a limited number of electron energies, 0.05MeV, 0.1MeV, 0.2MeV, 0.4MeV, 0.7MeV, 1MeV, 2MeV, 4MeV, and 10MeV. Our study, however, has confirmed that the previous results are sufficiently accurate. They are recovered, if the terms higher than the second Born terms are taken into account. We make a detailed comparison of the present results with those of the previous authors. The numerical results are parameterized in a form of analytic formulae that would facilitate practical uses of the results. We also extend our calculations to the case of mixtures of nuclear species. The corresponding subroutine can be retrieved from http://www.ph.sophia.ac.jp/~itoh-ken/subroutine/subroutine.htm
description: 21 pages, 2 figures, accepted by the Astrophysical Journal
Predicting the asymmetric response of a genetic switch to noise
Creators: name: Ochab-Marcinek, Anna
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: We present a simple analytical tool which gives an approximate insight into the stationary behavior of nonlinear systems undergoing the influence of a weak and rapid noise from one dominating source, e.g. the kinetic equations describing a genetic switch with the concentration of one substrate fluctuating around a constant mean. The proposed method allows for predicting the asymmetric response of the genetic switch to noise, arising from the noise-induced shift of stationary states. The method has been tested on an example model of the lac operon regulatory network: a reduced Yildirim-Mackey model with fluctuating extracellular lactose concentration. We calculate analytically the shift of the system's stationary states in the presence of noise. The results of the analytical calculation are in excellent agreement with the results of numerical simulation of the noisy system. The simulation results suggest that the structure of the kinetics of the underlying biochemical reactions protects the bistability of the lactose utilization mechanism from environmental fluctuations. We also show that, in the consequence of the noise-induced shift of stationary states, the presence of fluctuations stabilizes the behavior of the system in a selective way: although the extrinsic noise facilitates, to some extent, switching off the lactose metabolism, the same noise prevents it from switching on.
description: 23 pages, 7 figures, accepted for publication in Journal of Theoretical Biology. Version 3: corrected typos, corrected the Fig. 3 caption
Lamb waves sensor in liquid media utilizing higher-order quasi-longitudinal S5 and S6 modes
Creators: name: Hamidullah, Muhammad
name: Rezzag, Nassim
name: Élie-Caille, Céline
name: Leblois, Thérèse
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Higher-order quasi-longitudinal (QL) Lamb waves have been reported for sensor application in liquid media at a higher thickness-to-wavelength (h/l) ratio than the fundamental symmetric modes, with the main advantage of having higher operating frequency and reduction in the total size of the device without reducing the plate thickness. However, the trade-off in the reduction of the electromechanical coupling coefficient (K2) is a hinder in utilizing QL Lamb waves with higher-order numbers. Here we performed finite element simulation and verified experimentally the possibility of utilizing S5 and S6 QL Lamb wave modes in liquid media based on a two-port delay line device on a thick GaAs substrate. While the K2 values are lower for QL modes at higher-order numbers, the signal amplitude of S21 transmission parameter at the resonant frequency is still distinguishable from the noise floor. The result demonstrates the feasibility of higher-order modes at a higher h/l ratio for sensor application in liquid media, thus allowing further reduction in the wavelength and the total size of the sensor device.
Solar Cells from 120 ppma Carbon-Contaminated Feedstock without Significantly Higher Reverse Current or Shunt
Creators: name: Manshanden, P.
name: Coletti, G.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Feedstock, Crystallisation and Wafering

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 951-954
description: In a bid to drive down the cost of silicon wafers, several options for solar grade silicon feedstock have been investigated over the years. All methods have in common that the resulting silicon contains higher levels of impurities like dopants, oxygen, carbon or transition metals, the type and level of impurities depending on the raw materials and refining processes. In this work wafers from a p-type mc-Si ingot made with feedstock contaminated with 120 ppma of carbon have been processed into solar cells together with reference uncontaminated feedstock from semiconductor grade polysilicon with <0.4 ppma carbon. The results show that comparable reverse current, shunts, and efficiencies can be reached for both types of wafers. Gettering and defect hydrogenation effectiveness also did not deviate from the reference. Electroluminescence pictures do not show increased hotspot formation, even at -16V.
A New Approach in Numerical Simulation of PV Systems for PV Boats
Creators: name: Gorter, T.
name: Reinders, A.H.M.E.
name: Van Houten, F.J.A.M.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Off-grid Applications

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4294-4299
description: Conventional PV simulation methods are not sufficient to simulate and calculate energy balances for moving objects, such as PV-powered boats or PV-powered racing cars. We are developing a tool which can be used in 3D modeling software Rhinoceros. We want Frisian shipdesigners to help predict PV boat performance in an early stage of the design process. Our tool is based on conventional methods to determine solar positions with relation to an arbitrary oriented PV module. But added to the conventional methods, we integrated the availability of simulating PV energy yields on PV boats for pre-determined trajectories. Furthermore we can determine optimal PV orientation on PV boats for arbitrary times and places. Our tool is in a development stage and momentarily we are able to simulate clear sky situations. In order to prove the functionality of our tool, we’ve simulated 2 cases with 2 scenarios. The first case is a boat on a summer’s day and the second case a boat on a winter’s day in the Frisian Province region. With our tool we show that varying PV orientation on the boat, the energy yield can be increased. We also show that for
pre-determined trajectories in summer, horizontal PV module orientation is not always the best choice to achieve the highest energy yields. The accuracy of our model is not yet determined.
Automated Classification of Sloan Digital Sky Survey (SDSS) Stellar Spectra using Artificial Neural Networks
Creators: name: Bazarghan, Mahdi
name: Gupta, Ranjan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Automated techniques have been developed to automate the process of classification of objects or their analysis. The large datasets provided by upcoming spectroscopic surveys with dedicated telescopes urges scientists to use these automated techniques for analysis of such large datasets which are now available to the community. Sloan Digital Sky Survey (SDSS) is one of such surveys releasing massive datasets. We use Probabilistic Neural Network (PNN) for automatic classification of about 5000 SDSS spectra into 158 spectral type of a reference library ranging from O type to M type stars.
description: 27 pages, 11 figures To appear in Astrophys. Space Sci., 2008
Adaptive Multi-Teacher Multi-level Knowledge Distillation
Creators: name: Liu, Yuang
name: Zhang, Wei
name: Wang, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Knowledge distillation~(KD) is an effective learning paradigm for improving the performance of lightweight student networks by utilizing additional supervision knowledge distilled from teacher networks. Most pioneering studies either learn from only a single teacher in their distillation learning methods, neglecting the potential that a student can learn from multiple teachers simultaneously, or simply treat each teacher to be equally important, unable to reveal the different importance of teachers for specific examples. To bridge this gap, we propose a novel adaptive multi-teacher multi-level knowledge distillation learning framework~(AMTML-KD), which consists two novel insights: (i) associating each teacher with a latent representation to adaptively learn instance-level teacher importance weights which are leveraged for acquiring integrated soft-targets~(high-level knowledge) and (ii) enabling the intermediate-level hints~(intermediate-level knowledge) to be gathered from multiple teachers by the proposed multi-group hint strategy. As such, a student model can learn multi-level knowledge from multiple teachers through AMTML-KD. Extensive results on publicly available datasets demonstrate the proposed learning framework ensures student to achieve improved performance than strong competitors.
description: Neurocomputing 2020.07
A Full Year BIPV Case Study on Power Performance Research of Four Different PV Modules
Creators: name: Chen, H.J.
name: Chan, C.-C.
name: Huang, C.-Y.
name: Shu, C.M.
name: Chang, G.-W.
name: Sung, H.C.
name: Chiu, H.-J.
name: Chiang, C.-M.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Large PV Power Plants and Distributed PV: System Aspects and Grid Connection

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3896-3900
description: The BIPV (Building integrated Photovoltaic system) case study has been analyzed the power
performance on the four different types of PV module for the net zero energy research project in Hsinchu,
Taiwan. This study used pvsys software to simulate the four different types of PV module and combined
the real power performance on the different building surfaces. The total PV system capacities of the four
different types of PV module were 8.04kWp, which had been installed on the roof, wall, windows and
shading system. This paper used the DMY (Daily Mean Yields) and PR(Performance Ratio) to analysis the
PV systems performance during full year research in June 2011. The DMY values at the roof, wall, windows
and sun awning were 2.70, 0.92, 1.27, 1.86 (kWh/kWp/day) respectively. The System Performance Ratio at
roof, wall, windows and sun awning were81.69%, 66.46%, 72.55%, 56.72% respectively. The total average
error between the simulation by PVsys and the monitored of the PV power performance is around 0.76% to
11.16%.
From nucleation to percolation: the effect of system size when disorder and stress localization compete
Creators: name: Roy, Subhadeep
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A phase diagram for a one-dimensional fiber bundle model is constructed with a continuous variation in two parameters guiding the dynamics of the model: strength of disorder and range of stress relaxation. When the range of stress relaxation is very low, the stress concentration plays a prominent role and the failure process is nucleating where a single crack propagates from a particular nucleus with a very high spatial correlation unless the disorder strength is high. On the other hand, a high range of stress relaxation represents the mean-field limit of the model where the failure events are random in space. At an intermediate disorder strength and stress release range, when these two parameters compete, the failure process shows avalanches and precursor activities. As the size of the bundle is increased, it favors a nucleating failure. In the thermodynamic limit, we only observe a nucleating failure unless either the disorder strength is extremely high or the stress release range is high enough so that the model is in the mean-field limit. A complex phase diagram on the plane of disorder strength, stress release range, and system size is presented showing different failure modes - (I) nucleation, (II) avalanche, and (III) percolation, depending on the spatial correlation observed during the failure process.
description: 16 pages, 10 figures. arXiv admin note: substantial text overlap with arXiv:2107.09979
Influence of Operating Conditions and Physical Properties of Liquid Medium on Volumetric Oxygen Transfer Coefficient in a Dual Impeller Bioreactor
Creators: name: Kongdej LIMPAIBOON
Publisher: name: Walailak University
Year: 2013
Subjects: Stirred bioreactor, agitation, air flow rate, dissolved oxygen, glucose concentration, volumetric mass transfer coefficient of oxygen

description: 6, 10, Walailak Journal of Science and Technology
Search for strange tribaryon states in the inclusive ^4He(K^{-}_{stopped}, p) reaction
Creators: name: Sato, M.
name: Bhang, H.
name: Chiba, J.
name: Choi, Seonho
name: Fukuda, Y.
name: Hanaki, T.
name: Hayano, R. S.
name: Iio, M.
name: Ishikawa, T.
name: Ishimoto, S.
name: Ishiwatari, T.
name: Itahashi, K.
name: Iwai, M.
name: Iwasaki, M.
name: Kienle, P.
name: Kim, J. H.
name: Matsuda, Y.
name: Ohnishi, H.
name: Okada, S.
name: Outa, H.
name: Suzuki, S.
name: Suzuki, T.
name: Tomono, D.
name: Widmann, E.
name: Yamazaki, T.
name: Yim, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A search for tribaryon states was performed at KEK-PS. We adopted the $^4$He($K^-_{stopped}, p)$ reaction to populate the states with strangeness -1, charge 0 and isospin 1. No significant narrow structure was observed in the mass region from 3000 to 3200 MeV/c^2 in an inclusive missing mass spectrum. The upper limit of the formation branching ratio was determined to be ($1\sim3)\times 10^{-4}$, ($0.7\sim2)\times 10^{-3}$ and ($2\sim8) \times 10^{-3}$/($stopped K^{-}$) with 95 % confidence level for narrow states with an assumed width of 0, 20 and 40 MeV/c^2, respectively.
description: 11 pages, 6 figures, submitted to Physics Letters B
Créer des cartes reproductibles avec mapsf
Creators: name: Giraud, Timothée
Publisher: name: Zenodo
Year: 2021
Subjects: cartography
map
reproducible research

description: Slides: https://rcarto.github.io/ined2021/ L’écosystème spatial du logiciel libre R est riche, dynamique et mature et plusieurs packages permettent d’importer, de traiter et de représenter les données spatiales. Le package mapsf s’appuie sur cet écosystème pour intégrer la création de cartes thématiques de qualité dans les chaînes de traitement avec R. mapsf permet de créer la plupart des types de carte utilisés habituellement en cartograpie statistique (carte choroplèthes, typologies, symboles proportionnels ou gradués…). Pour chaque type de carte plusieurs paramètres permettent de personnaliser la représentation cartographique, ces paramètres sont les même que ceux que l’on retrouve dans les logiciels de SIG ou de cartographie usuels (par exemple le choix des discrétisations et des palettes de couleurs, modifications des taille des symboles ou la personnalisation des légendes). Associées aux fonctions de représesentation des données d’autres fonctions sont dédiées à l’habillage cartographique (thèmes ou chartes graphiques, légendes, échelles, flèches d’orientation, titre, crédits, annotations...), à la création de cartons ou à l’export des cartes. mapsf est le successeur de cartography, il offre les mêmes fonctionnalités principales tout en étant plus léger et plus ergonomique. Lors de cette présentation nous aborderons les principales fonctionnalités du package puis, à travers une série d’exemples, nous verrons comment composer des cartes statistiques plus ou moins complexes.
Improving MP2 band gaps with low-scaling approximations to EOM-CCSD
Creators: name: Lange, Malte F.
name: Berkelbach, Timothy C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Despite its reasonable accuracy for ground-state properties of semiconductors and insulators, second-order Moller-Plesset perturbation theory (MP2) significantly underestimates band gaps. Here, we evaluate the band gap predictions of partitioned equation-of-motion MP2 (P-EOM-MP2), which is a second-order approximation to equation-of-motion coupled-cluster theory with single and double excitations. On a test set of elemental and binary semiconductors and insulators, we find that P-EOM-MP2 overestimates band gaps by 0.3 eV on average, which can be compared to the underestimation by 0.6 eV on average exhibited by the G0W0 approximation with a PBE reference. We show that P-EOM-MP2, when interpreted as a Green's function-based theory, has a self-energy that includes all first- and second- order diagrams and a few third-order diagrams. We find that the GW approximation performs better for materials with small gaps and P-EOM-MP2 performs better for materials with large gaps, which we attribute to their superior treatment of screening and exchange, respectively.
description: 4+ pages, 1 table, 3 figures
Massive feature extraction for explaining and foretelling hydroclimatic time series forecastability at the global scale
Creators: name: Papacharalampous, Georgia
name: Tyralis, Hristos
name: Pechlivanidis, Ilias G.
name: Grimaldi, Salvatore
name: Volpi, Elena
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Statistical analyses and descriptive characterizations are sometimes assumed to be offering information on time series forecastability. Despite the scientific interest suggested by such assumptions, the relationships between descriptive time series features (e.g., temporal dependence, entropy, seasonality, trend and linearity features) and actual time series forecastability (quantified by issuing and assessing forecasts for the past) are scarcely studied and quantified in the literature. In this work, we aim to fill in this gap by investigating such relationships, and the way that they can be exploited for understanding hydroclimatic forecastability and its patterns. To this end, we follow a systematic framework bringing together a variety of -- mostly new for hydrology -- concepts and methods, including 57 descriptive features and nine seasonal time series forecasting methods (i.e., one simple, five exponential smoothing, two state space and one automated autoregressive fractionally integrated moving average methods). We apply this framework to three global datasets originating from the larger Global Historical Climatology Network (GHCN) and Global Streamflow Indices and Metadata (GSIM) archives. As these datasets comprise over 13 000 monthly temperature, precipitation and river flow time series from several continents and hydroclimatic regimes, they allow us to provide trustable characterizations and interpretations of 12-month ahead hydroclimatic forecastability at the global scale...
A Simple and Rapid HPLC Technique for Determination of Arecoline in Areca Nut (Areca catechu L.) Extract
Creators: name: Chutima JANTARAT, Pornpak SIRATHANARUN
Publisher: name: Walailak University
Year: 2013
Subjects: Arecoline, areca catechu, HPLC method, determination

description: 1, 10, Walailak Journal of Science and Technology
Quantitative magnetic resonance image analysis via the EM algorithm with stochastic variation
Creators: name: Zhang, Xiaoxi
name: Johnson, Timothy D.
name: Little, Roderick J. A.
name: Cao, Yue
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Quantitative Magnetic Resonance Imaging (qMRI) provides researchers insight into pathological and physiological alterations of living tissue, with the help of which researchers hope to predict (local) therapeutic efficacy early and determine optimal treatment schedule. However, the analysis of qMRI has been limited to ad-hoc heuristic methods. Our research provides a powerful statistical framework for image analysis and sheds light on future localized adaptive treatment regimes tailored to the individual's response. We assume in an imperfect world we only observe a blurred and noisy version of the underlying pathological/physiological changes via qMRI, due to measurement errors or unpredictable influences. We use a hidden Markov random field to model the spatial dependence in the data and develop a maximum likelihood approach via the Expectation--Maximization algorithm with stochastic variation. An important improvement over previous work is the assessment of variability in parameter estimation, which is the valid basis for statistical inference. More importantly, we focus on the expected changes rather than image segmentation. Our research has shown that the approach is powerful in both simulation studies and on a real dataset, while quite robust in the presence of some model assumption violations.
description: Published in at http://dx.doi.org/10.1214/07-AOAS157 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Modeling Transport of SARS-CoV-2 Inside a Charlotte Area Transit System (CATS) Bus
Creators: name: McGowan, Gregory
name: Feaster, Jeffrey
name: Jones, Andy
name: Agricola, Lucas
name: Goodson, Matthew
name: Timms, William
name: Uddin, Mesbah
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: We present in this paper a model of the transport of human respiratory particles on a Charlotte Area Transit System (CATS) bus to examine the efficacy of interventions to limit exposure to SARS-CoV-2, the virus that causes COVID-19. The methods discussed here utilize a commercial Navier-Stokes flow solver, RavenCFD, run using a massively parallel supercomputer to model the flow of air through the bus under varying conditions, such as windows being open or the HVAC flow settings. Lagrangian particles are injected into the RavenCFD predicted flow fields to simulate the respiratory droplets from speaking, coughing, or sneezing. These particles are then traced over time and space until they interact with a surface or are removed via the HVAC system. Finally, a volumetric Viral Mean Exposure Time (VMET) is computed to quantify the risk of exposure to the SARS-CoV-2 under various environmental and occupancy scenarios. Comparing the VMET under varying conditions should help identify viable methods to reduce the risk of viral exposure of CATS bus passengers during the COVID-19 pandemic.
Extraction of invariant manifolds and application to turbulence with a passive scalar
Creators: name: Sujovolsky, Nicolas E.
name: Mininni, Pablo D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The reduction of dimensionality of physical systems, specially in fluid dynamics, leads in many situations to nonlinear ordinary differential equations which have global invariant manifolds with algebraic expressions containing relevant physical information of the original system. We present a method to identify such manifolds, and we apply it to a reduced model for the Lagrangian evolution of field gradients in homogeneous and isotropic turbulence with a passive scalar.
description: 6 pages, 3 figures
MOESM3 of Comparative outcomes of heart failure among existent classes of anti-diabetic agents: a network meta-analysis of 171,253 participants from 91 randomized controlled trials
Creators: name: Yang, Da-ya
name: He, Xin
name: Liang, Hui-wei
name: Zhang, Shao-zhao
name: Zhong, Xiang-bin
name: Luo, Chu-fan
name: Du, Zhi-min
name: He, Jian-gui
name: Zhuang, Xiao-dong
name: Liao, Xin-xue
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 3: Figure S1. Flow chart of study inclusion.
MOESM4 of Comparative outcomes of heart failure among existent classes of anti-diabetic agents: a network meta-analysis of 171,253 participants from 91 randomized controlled trials
Creators: name: Yang, Da-ya
name: He, Xin
name: Liang, Hui-wei
name: Zhang, Shao-zhao
name: Zhong, Xiang-bin
name: Luo, Chu-fan
name: Du, Zhi-min
name: He, Jian-gui
name: Zhuang, Xiao-dong
name: Liao, Xin-xue
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 4: Table S3. Baseline characteristics of included studies. Table S4. Methodological quality assessment of included studies. Table S5. Heart failure events of included studies.
Monitored PV System Data Analysis of PV-Powered Racing Boat during the Dong Energy Solar Challenge 2012
Creators: name: Gorter, T.
name: Voerman, E.-J.
name: Joore, P.
name: Reinders, A.H.M.E.
name: Van Houten, F.J.A.M.
Publisher: name: WIP
Year: 2012
Subjects: PV Systems
Off-grid Applications

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4300-4305
description: In order to understand PV system’s behavior on PV boats, we’ve monitored in 2010 a PV boat during the Frisian Solar Challenge. In 2012 we have monitored a similar PV boat which participated in the same race in 2012. Since these 2 boats share the same configuration, but different installed PV systems, we have
analyzed the data of both boats for comparison. Both races followed the same trajectories; however weather conditions varied between sunny with over 900W/m2 irradiation to stormy with very low irradiation under 80W/m2. In general our 2010 boat performed better compared to our 2012 boat. In 2012, average irradiation was
lower compared with 2010. In 2010 we could use 14.2kWh to sail a distance of 190km whereas in 2012 we could use 12.3kWh to sail a distance of 212km. This difference is caused by the low irradiation conditions in 2012 compared with 2010. PV system energy losses are higher when irradiation is lower. A lower speed has high impact on the energy balance of a PV boat. Average speed in 2010 was 13.9km/h and in 2012 12.6km/h. Although the boat performance ratio in 2012 has been lower compared to 2010, respectively 0.545 and 0.702, even in bad weather conditions the 2012 PV boat performed as expected.
Additional file 2 of CHICKN: extraction of peptide chromatographic elution profiles from large scale mass spectrometry data by means of Wasserstein compressive hierarchical cluster analysis
Creators: name: Permiakova, Olga
name: Guibert, Romain
name: Kraut, Alexandra
name: Fortin, Thomas
name: Hesse, Anne-Marie
name: Burger, Thomas
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 2: Preprocessing details. Detailed explanations of Eq. (1) (interpolation needs, justification of the method and parameter tuning).