cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reconstructing inclined extensive air showers from radio measurements
Creators: name: Huege, Tim
name: Schlüter, Felix
Publisher: name: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Year: 2022

description: We present a reconstruction algorithm for extensive air showers with zenith angles between 65°and 85° measured with radio antennas in the 30-80 MHz band. Our algorithm is based on a signal model derived from CoREAS simulations which explicitly takes into account the asymmetries introduced by the superposition of charge-excess and geomagnetic radiation as well as by early-late effects. We exploit correlations among fit parameters to reduce the dimensionality and thus ensure stability of the fit procedure. Our approach reaches a reconstruction efficiency near 100% with an intrinsic resolution for the reconstruction of the electromagnetic energy of well below 5%. It can be employed in upcoming large-scale radio detection arrays using the 30-80 MHz band, in particular the AugerPrime Radio detector of the Pierre Auger Observatory, and can likely be adapted to experiments such as GRAND operating at higher frequencies.
The Randić index and signless Laplacian spectral radius of graphs
Creators: name: Ning, Bo
name: Peng, Xing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50, 05C90

description: Given a connected graph $G$, the Randić index $R(G)$ is the sum of $\tfrac{1}{\sqrt{d(u)d(v)}}$ over all edges $\{u,v\}$ of $G$, where $d(u)$ and $d(v)$ are the degree of vertices $u$ and $v$ respectively. Let $q(G)$ be the largest eigenvalue of the singless Laplacian matrix of $G$ and $n=|V(G)|$. Hansen and Lucas (2010) made the following conjecture: \[ \frac{q(G)}{R(G)} \leq \begin{cases} \frac{4n-4}{n} & 4 \leq n\leq 12 \frac{n}{\sqrt{n-1}} & n\geq 13 \end{cases} \] with equality if and only if $G=K_{n}$ for $4\leq n\leq 12$ and $G=S_n$ for $n\geq 13$, respectively. Deng, Balachandran, and Ayyaswamy (J. Math. Anal. Appl. 2014) verified this conjecture for $4 \leq n \leq 11$. In this paper, we solve this conjecture completely.
description: 14 pages
Extreme multistability in symmetrically coupled clocks
Creators: name: Su, Zhen
name: Kurths, Jürgen
name: Liu, Yaru
name: Yanchuk, Serhiy
Publisher: name: arXiv
Year: 2023
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Extreme multistability (EM) is characterized by the emergence of infinitely many coexisting attractors or continuous families of stable states in dynamical systems. EM implies complex and hardly predictable asymptotic dynamical behavior. We analyse a model for pendulum clocks coupled by springs and suspended on an oscillating base, and show how EM can be induced in this system by a specifically designed coupling. First, we uncover that symmetric coupling can increase the dynamical complexity. In particular, the coexistence of multiple isolated attractors and continuous families of stable periodic states is generated in a symmetric cross-coupling scheme of four pendulums. These coexisting infinitely many states are characterized by different levels of phase synchronization between the pendulums, including anti-phase and in-phase states. Some of the states are characterized by splitting of the pendulums into groups with silent sub-threshold and oscillating behavior, respectively. The analysis of the basins of attraction further reveals the complex dependence of EM on initial conditions.
description: 13 pages, 9 figures
Optimized Demand Side Management and Minimized Battery Storage for High Self-Consumption with PV-Driven Low-Part-Load Heat Pumps
Creators: name: Heithorst, B.
name: Kiefer, F.
name: Shen, J.
name: Kastl, A.
name: Präbst, A.
name: Spinnler, M.
name: Sattelmayer, T.
Publisher: name: WIP
Year: 2016
Subjects: PV Applications and Integration
Grid and Energy System Integration

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2415-2422
description: Heat pumps for domestic applications have shown to be an intelligent option for demand side
management and thus enhanced self-consumption of photovoltaic power. The underlying intention is to store a
surplus in energy in a cheap and long-life thermal storage instead of using batteries or burdening grid. New
commercially available heat pump systems are supplied with variable frequency drives in order to reduce the
energy consumption and allow part load operation. Nevertheless, they suffer from relatively high minimum partload
values and thus limited control range due to the characteristics of the used scroll compressor. In contrast to
these systems, Spinnler et al. (2014) presented a novel concept for an enhanced "low-part-load" capable heat
pump or compression chiller system based on swash-plate compressors typically used in mobile applications.
These systems show better control characteristics and very low possible part load at a relatively high efficiency.
The aim of this paper is to compare highly transient driven scroll and swash-plate based heat pumps and to
develop an intelligent energy storage system design for increasing self-consumption in domestic application. A
quasi-steady state computational model of the heat pump system including a transient building model was
therefore implemented in Matlab. An analysis of the simulated heat pump power shows that small short-time
electrical storages, combined with a thermal water storage tank could be an interesting alternative for a durable
and robust Demand-Side-Management-integrated heat pump system. It could be shown that the size of the
thermal storage has a significant influence on the self-consumption ratio.
Do the Footwear Profiles and Foot-Related Problems Reported by Netball Players Differ Between Males and Females?
Creators: name: Kirk, MM
name: Mattock, Joshua
name: Coltman, CE
name: Steele, Julie
Publisher: name: University of Wollongong
Year: 2025
Subjects: classificationCode: 4207
subject: Sports science and exercise
classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences
classificationCode: 3202
subject: Clinical sciences
classificationCode: 4201
subject: Allied health and rehabilitation science

description: Introduction: We explored the footwear profiles and foot-related problems reported by netball players and whether these differed between males and females. Methods: Two thousand nine hundred and twenty-five amateur, sub-elite and elite netball players (men n = 279; women n = 2646; age 26.4 ± 10.0 years) completed a custom-designed online survey with questions related to netball experience, current netball footwear habits and history of foot-related problems. Footwear profiles and foot-related problems were considered in logistic regressions against sex and competition level to ascertain significant relationships (p < 0.05) and predictive values (odds ratio). Results: Although 80.4% of respondents reported wearing netball-specific shoes, females were 13.2 times more likely to wear netball-specific shoes than males. Foot-related problems and foot pain were reported by 84.3% and 56.8% of netball players, respectively; with blisters, ankle sprain/strains and calluses being most common. Although women were significantly more likely to suffer from foot-related problems than men, males were significantly more likely to believe their foot pain was caused by the footwear they wore for netball. Conclusion: The high prevalence of foot-related problems and pain reported by all netball players suggests that the shoes players are currently wearing for netball are not meeting the requirements of players, particularly regarding fit, comfort and functionality. As male netball players have significantly different footwear profiles to female players, men are likely to require netball-specific footwear that differs to the netball-specific shoes designed for female players.
Fritz Schnorf, in der Beugen, Meilen, geboren am 15. August 1893, gestorben am 24. Mai 1963
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 1963
Subjects: subject: 330 Wirtschaft
subject: 920 Biografien, Genealogie, Insignien
subject: Schnorf, Fritz
subject: Nachruf

description: Enthält: Trauerfeier in der Kirche Meilen am 28. Mai 1963: Abdankungspredigt gehalten von Herrn Pfarrer Karl Baumann, Meilen; Ansprache von Herrn Robert Naville, Vizepräsident der Schweizerischen Aluminium AG. Nachruf in der "Neuen Zürcher Zeitung" von Herrn Generaldirektor E. Meyer, Meilen; Nachruf in der "Zürichsee-Zeitung" von Herrn a. Gemeindepräsident A. Glogg, Meilen.
Characterisation of filamin A in the rat testis
Creators: name: Vongchanh, Nicole.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Microlensing by Kuiper, Oort, and Free-Floating Planets
Creators: name: Gould, Andrew
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Microlensing is generally thought to probe planetary systems only out to a few Einstein radii. Microlensing events generated by bound planets beyond about 10 Einstein radii generally do not yield any trace of their hosts, and so would be classified as free floating planets (FFPs). I show that it is already possible, using adaptive optics (AO), to constrain the presence of potential hosts to FFP candidates at separations comparable to the Oort Cloud. With next-generation telescopes, planets at Kuiper-Belt separations can be probed. Next generation telescopes will also permit routine vetting for all FFP candidates, simply by obtaining second epochs 4-8 years after the event. At present, the search for such hosts is restricted to within the "confusion limit" of theta_confus ~ 250 mas, but future WFIRST observations will allow one to probe beyond this confusion limit as well.
description: 4 pages, submitted to JKAS
Combined PV Solar Compression Cooling and Free Cooling System
Creators: name: Gantenbein, P.
name: Omlin, L.
name: Notter, D.
name: Snegirjovs, A.
Publisher: name: WIP
Year: 2016
Subjects: PV Applications and Integration
Grid and Energy System Integration

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2411-2414
description: A photovoltaic and grid connected, electric energy driven cooling system is set up and measurements are performed. The system with a maximum cooling power of Pcool = 8kW can be operated in several cooling modes (predominantly) regarding comfort and energy efficiency but also can be run in a heating mode. Therefore it contains PV modules, a compression cooling machine i.e. heat pump (HP), a cold storage (cold side of the HP), an outdoor unit and cold ceilings for the cold distribution. To increase the system efficiency, while cooling is needed, the energy on the hot side of the HP is used for domestic hot water preparation. In case of favourable weather conditions the cold storage can be cooled down in the free cooling mode, the most energy efficient cooling operation mode. The outdoor unit for heat rejection is therefore positioned on a shadowy place.
A water based ethanol brine (20 vol.% ethanol) is used as the heat transfer fluid because of better thermo-physical properties than water at low temperature i.e. below 20°C?. To perform measurements a number of sensors are installed and for system operation control and data acquisition the NI LabVIEW® software is used. The data analysis is further done with MATLAB scripts. First operation and data analysis results show a good performance of the system.
Coincidence spectroscopy of high-lying Rydberg states produced in strong laser fields
Creators: name: Larimian, Seyedreza
name: Erattupuzha, Sonia
name: Lemell, Christoph
name: Yoshida, Shuhei
name: Nagele, Stefan
name: Maurer, Raffael
name: Baltuška, Andrius
name: Burgdörfer, Joachim
name: Kitzler, Markus
name: Xie, Xinhua
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the measurement of electron emission after the interaction of strong laser pulses with atoms and molecules. These electrons originate from high-lying Rydberg states with quantum numbers up to $n \lesssim 120$ formed by frustrated field ionization. Simulations show that both tunneling ionization by a weak dc field and photoionization by the black-body radiation contribute to delayed electron emission on the nano- to microsecond scale. We measured ionization rates from these Rydberg states by coincidence spectroscopy. Further, the dependence of the Rydberg-state production on the ellipticity of the driving laser field proves that such high-lying Rydberg states are populated through electron recapture. The present experiment provides detailed quantitative information on Rydberg production by frustrated field ionization.
Zur Erinnerung an Erica von Schulthess Rechberg, geb. Frensdorff, 29. November 1883 - 20. Juni 1970
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 1970
Subjects: subject: 700 Künste, Bildende und angewandte Kunst
subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Schultheß-Rechberg, Erica von

description: Aus der Abdankungsansprache von Herrn Pfarrer Gerhard Keller, Pfäffikon
Simulation of Local Energy Surplus Usage in Hybrid Grids with a High PV Penetration Rate
Creators: name: Stakic, D.
name: Ruf, H.
name: Ditz, K.
name: Funk, D.
name: Heilscher, G.
name: Meier, F.
Publisher: name: WIP
Year: 2016
Subjects: PV Applications and Integration
Grid and Energy System Integration

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2423-2426
description: The objective of the “optimizing hybrid energy grids for smart cities”- (OrPHEuS) project is the
development of cooperative control strategies for smart cities and hybrid energy networks. The OrPHEuS project aims at
solutions for optimizing the interaction among multiple energy grids e.g. electric power, district heating and gas, which
are connected through coupling points and defined as hybrid energy grids. This paper focus on the framework developed
for the situation in the two test areas close to the city of Ulm, Southern Germany. The test areas have suburban and
village character with high photovoltaic penetration rate. The interaction of the key values of the heat, gas and electrical
demand has been investigated. As a result the most promising configuration for the control strategies was set-up. As a
part of the preprocessing for the co-simulation of the energy grids the potential storage capacity within the gas grid was
calculated.
ACR Roundtable proposal: the luxury brand consumption experience in the digital era
Creators: name: Wang, Qing
name: Morhart, Felicitas
name: Griesser, Simone
Publisher: name: Zenodo
Year: 2022

description: Digital technology including social media challenge fundamental premises of luxury brands including exclusivity, status, authenticity, and sensory experiences. Digital luxury experiences differ from their offline counterparts and brought forward terms like "webmosphere" or "luxemosphere" indicating new approaches. Little is known about the underlying mechanisms manifested in these new phenomena.
description: + ID der Publikation: hslu_89020 + Art des Beitrages: Moderation + Veranstalter: Association of Consumer Research + Sprache: Englisch + Letzte Aktualisierung: 2022-09-13 14:41:49
Expression and regulation of cyclooxygenase isoforms in the rat testis
Creators: name: Ali, Ugur.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The structure and evolution of a forming galaxy cluster at z = 1.62
Creators: name: Hatch, N. A.
name: Muldrew, S. I.
name: Cooke, E. A.
name: Hartley, W. G.
name: Almaini, O.
name: Simpson, C. J.
name: Conselice, C. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a comprehensive picture of the Cl0218.3-0510 protocluster at $z=1.623$ across 10 co-moving Mpc. Using filters that tightly bracket the Balmer and 4000 Angstrom breaks of the protocluster galaxies we obtain precise photometric redshifts resulting in a protocluster galaxy sample that is 89+/-5% complete and has a contamination of only 12+/-5%. Both star forming and quiescent protocluster galaxies are located allowing us to map the structure of the forming cluster for the first time. The protocluster contains 6 galaxy groups, the largest of which is the nascent cluster. Only a small minority of the protocluster galaxies are in the nascent cluster (11%) or in the other galaxy groups (22%), as most protocluster galaxies reside between the groups. Unobscured star forming galaxies predominantly reside between the protocluster's groups, whereas red galaxies make up a large fraction of the groups' galactic content, so observing the protocluster through only one of these types of galaxies results in a biased view of the protocluster's structure. The structure of the protocluster reveals how much mass is available for the future growth of the cluster and we use the Millennium Simulation, scaled to a Planck cosmology, to predict that Cl0218.3-0510 will evolve into a 2.7x 10^14 Msun cluster by the present day.
description: Accepted for publication in MNRAS
In vitro and in vivo development of mouse embryos following in vitro fertilization and intracytoplasmic injection of fresh and sub-optimal sperm using different culture media
Creators: name: Kanagasabai, Sivachelvi.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Predicting Coronal Mass Ejections Using Machine Learning Methods
Creators: name: Bobra, Monica G.
name: Ilonidis, Stathis
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Of all the activity observed on the Sun, two of the most energetic events are flares and Coronal Mass Ejections (CMEs). Usually, solar active regions that produce large flares will also produce a CME, but this is not always true (Yashiro et al., 2005). Despite advances in numerical modeling, it is still unclear which circumstances will produce a CME (Webb & Howard, 2012). Therefore, it is worthwhile to empirically determine which features distinguish flares associated with CMEs from flares that are not. At this time, no extensive study has used physically meaningful features of active regions to distinguish between these two populations. As such, we attempt to do so by using features derived from [1] photospheric vector magnetic field data taken by the Solar Dynamics Observatory's Helioseismic and Magnetic Imager instrument and [2] X-ray flux data from the Geostationary Operational Environmental Satellite's X-ray Flux instrument. We build a catalog of active regions that either produced both a flare and a CME (the positive class) or simply a flare (the negative class). We then use machine-learning algorithms to [1] determine which features distinguish these two populations, and [2] forecast whether an active region that produces an M- or X-class flare will also produce a CME. We compute the True Skill Statistic, a forecast verification metric, and find that it is a relatively high value of approximately 0.8 plus or minus 0.2. We conclude that a combination of six parameters, which are all intensive in nature, will capture most of the relevant information contained in the photospheric magnetic field.
description: Accepted for publication in the Astrophysical Journal
The relationship between hormonal changes and follicular development in the superovulated Holstein cow
Creators: name: Downie, Shara Katherine.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
title: Project of Acoustic Adaptation of the Church with a Long Reverberation Time
Creators: name: Brański, Adam
name: Janas, Lucjan
name: Prędka, Edyta
name: Klich, Rafał
name: Szynal, Daniel
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Vibrations in Physical Systems, 33(2), 2022209-1 - 2022209-6
$q$-Bernstein functions and applications
Creators: name: Krasniqi, Valmir
name: Mansour, Toufik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We characterize of the $q$-Bernstein functions in terms of $q$-Laplace transform. Moreover, we present several results of $q$-completely monotonic, $q$-log completely monotonic and $q$-Bernstein functions.
description: 9
NuSTAR and Swift observations of the very high state in GX 339-4: Weighing the black hole with X-rays
Creators: name: Parker, M. L.
name: Tomsick, J. A.
name: Kennea, J. A.
name: Miller, J. M.
name: Harrison, F. A.
name: Barret, D.
name: Boggs, S. E.
name: Christensen, F. E.
name: Craig, W. W.
name: Fabian, A. C.
name: Fuerst, F.
name: Grinberg, V.
name: Hailey, C. J.
name: Romano, P.
name: Stern, D.
name: Walton, D. J.
name: Zhang, W. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results from spectral fitting of the very high state of GX~339-4 with NuSTAR and Swift. We use relativistic reflection modelling to measure the spin of the black hole and inclination of the inner disk, and find a spin of $a=0.95^{+0.02}_{-0.08}$ and inclination of $30$°$\pm1$ (statistical errors). These values agree well with previous results from reflection modelling. With the exceptional sensitivity of NuSTAR at the high-energy side of the disk spectrum, we are able to constrain multiple physical parameters simultaneously using continuum fitting. By using the constraints from reflection as input for the continuum fitting method, we invert the conventional fitting procedure to estimate the mass and distance of GX~339-4 using just the X-ray spectrum, finding a mass of $9.0^{+1.6}_{-1.2}M_\odot$ and distance of $8.4\pm0.9$ kpc (statistical errors).
description: 6 pages, 4 figures, accepted for publication in ApJ Letters
Pure non-Markovian evolutions
Creators: name: De Santis, Dario
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Markovian dynamics are characterized by information backflows, where the evolving open quantum system retrieves part of the information previously lost in the environment. Hence, the very definition of non-Markovianity implies an initial time interval when the evolution is noisy, otherwise no backflow could take place. We identify two types of initial noise, where the first has the only effect of degrading the information content of the system, while the latter is essential for the appearance of non-Markovian phenomena. Therefore, all non-Markovian evolutions can be divided into two classes: noisy non-Markovian (NNM), showing both types of noise, and pure non-Markovian (PNM), implementing solely essential noise. We make this distinction through a timing analysis of fundamental non-Markovian features. First, we prove that all NNM dynamics can be simulated through a Markovian pre-processing of a PNM core. We quantify the gains in terms of information backflows and non-Markovianity measures provided by PNM evolutions. Similarly, we study how the entanglement breaking property behaves in this framework and we discuss a technique to activate correlation backflows. Finally, we show the applicability of our results through the study of several well-know dynamical models.
description: 14+4 pages, 5 figures. Comments are welcome! Accepted for publication in Quantum
New Design Challenges for Utility Scale PV Power Plants
Creators: name: Santamaria, S.
name: Palatnic, E.
name: Montanari, F.
Publisher: name: WIP
Year: 2016
Subjects: PV Applications and Integration
Utility-Scale PV

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2436-2440
description: In the last five years the size of utility scale PV plants has exponentially increased, while the awarded
PPA prices or tariffs have exponentially decreased. Additionally, the demand for PV plants is aggressively growing
in new and emerging markets and in new countries. In order to remain competitive, companies are faced with new
design challenges in tough market and country conditions. The following paper examines the PV market changes,
design optimization, the impact of market availability, construction planning and logistics, and the impact harsh
environmental conditions has on a utility scale PV project.
Shallow Water Memory: Stokes and Darwin Drifts
Creators: name: Sheikh-Jabbari, M. M.
name: Taghiloo, V.
name: Vahidinia, M. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: It has been shown in \cite{Tong:2022gpg} that shallow water in the Euler description admits a dual gauge theory formulation. We show in the Lagrange description this gauge symmetry is a manifestation of the 2 dimensional area-preserving diffeomorphisms. We find surface charges associated with the gauge symmetry and their algebra, and study their physics in the shallow water system. In particular, we provide a reinterpretation of the Kelvin circulation theorem in terms of conserved charges. In the linear shallow water case, the charges form a u(1) current algebra with level proportional to the Coriolis parameter over the height of the fluid. We also study memory effect for the gauge theory description of the linearized shallow water and show Euler, Stokes and Darwin drifts can be understood as a memory effect and/or change of the surface charges in the gauge theory description.
description: 28 pages, 2 figures, minor improvements, references added
Maximum Power Point Modeling through Irradiance Based Duty Cycle Calculation
Creators: name: Upadhyay, P.
name: Pulipaka, S.
name: Kumar, R.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2360-2364
description: This paper proposes an irradiance based modeling of duty cycle, for maximum power point operation of a panel. In existing methods for irradiance prediction, a relation was established to input maximum power duty cycle with parameters of panel. Proposed system operated with better maximum power point based on panel parameters duty cycle relation. Duty cycle of the converter is independent of feedback from output side so that the necessity of voltage sensing was eliminated and duty cycle input to converter was calculated from irradiance input on panel. Irradiance data for last 10 years was collected from NASA’s website and for various level of irradiance Vmp, Imp are modeled to ensure maximum output power from converter. Duty cycle is then calculated with converter topology to trigger switch. Modeling of proposed system was done with different irradiance levels to calculate duty cycle for a year. Then obtained model was verified at predicted irradiance levels and a maximum point operation up to 98.21% was obtained. In various parameters of solar panel maximum power voltage, maximum power current and load side impedance was taken for duty cycle calculation. This proposed research work based on input effective resistance and output resistance is useful in constant voltage demand applications like battery charging or to supply constant dc load.
RCSLenS: A new estimator for large-scale galaxy-matter correlations
Creators: name: Buddendiek, A.
name: Schneider, P.
name: Hildebrandt, H.
name: Blake, C.
name: Choi, A.
name: Erben, T.
name: Heymans, C.
name: van Waerbeke, L.
name: Viola, M.
name: Harnois-Deraps, J.
name: Koens, L.
name: Nakajima, R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present measurements of the galaxy bias $b$ and the galaxy-matter cross-correlation coefficient $r$ for the BOSS LOWZ luminous red galaxy sample. Using a new statistical weak lensing analysis of the Red Sequence Cluster Lensing Survey (RCSLenS) we find the bias properties of this sample to be higher than previously reported with $b=2.45^{+0.05}_{-0.05}$ and $r=1.64^{+0.17}_{-0.16}$ on scales between $3'$ and $20'$. We repeat the measurement for angular scales of $20'\leq \vartheta \leq70'$, which yields $b=2.39^{+0.07}_{-0.07}$ and $r=1.24^{+0.26}_{-0.25}$. This is the first application of a data compression analysis using a complete set of discrete estimators for galaxy-galaxy lensing and galaxy clustering. As cosmological data sets grow, our new method of data compression will become increasingly important in order to interpret joint weak lensing and galaxy clustering measurements and to estimate the data covariance. In future studies this formalism can be used as a tool to study the large-scale structure of the Universe to yield a precise determination of cosmological parameters.
description: 14 pages, 14 figures, accepted for publication in MNRAS
When to focus on the detail and when on the big picture: psychological distance of utilitarian vs luxury products and services
Creators: name: Griesser, Simone
name: Hills, Thomas T.
name: Wang, Qing
Publisher: name: Zenodo
Year: 2022
Subjects: NLP
Natural Language Processing
text analysis
Twitter
social media
psychological distance

description: How customers experience a product or a service is a much debated topic. This study applies the Construal Level Theory (Trope & Liberman, 2010), a social cognitive theory, to explain how consumer perceive utilitarian vs. luxury products and services. The assumption investigated is that luxury products are psychologically the most distant and abstract, followed by luxury experiences, utilitarian products and utilitarian experiences. This is tested with digitalised book data from Google. The retrieved words are replaced with concreteness scores from Brysbaert et al. (2014) and analysed in a repeated two-way factorial. Results show that products are generally psychologically closer and concreter than experiences and the link between psychological distance and utilitarian vs. luxury goods is not as strong as assumed. The results are discussed in light of data type, analytical techniques, and consumption phases.
description: + ID der Publikation: hslu_89023 + Art des Beitrages: Poster-Präsentation + Veranstalter: European Marketing Academy + Sprache: Englisch + Letzte Aktualisierung: 2022-09-13 14:43:52
Performance Analysis of Transposition Models Simulating Solar Radiation on Inclined Surfaces
Creators: name: Xie, Y.
name: Sengupta, M.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2352-2355
description: Transposition models are widely used in the solar energy industry to simulate solar radiation on inclined
photovoltaic (PV) panels. These transposition models have been developed using various assumptions about the distribution
of the diffuse radiation, and most of the parameterizations in these models have been developed using hourly measurements.
Numerous studies have compared the performance of transposition models but this paper aims to understand the quantitative
uncertainty in the state-of-the-art transposition models and the sources leading to the uncertainty using high-resolution
ground measurements in the plane-of-array. Our results suggest that the aerosol optical depth (AOD) can affect the accuracy
of isotropic models. The choice of empirical coefficients and the use of decomposition models can both result in uncertainty
in the output from the transposition models. It is expected that the results of this study will ultimately lead to improvement of
the parameterizations as well as the development of improved physical models.
EPR Paradox, Quantum Nonlocality and Physical Reality
Creators: name: Kupczynski, Marian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Eighty years ago Einstein demonstrated that a particular interpretation of the reduction of wave function led to a paradox and that this paradox disappeared if statistical interpretation of quantum mechanics was adopted. According to the statistical interpretation a wave function describes only an ensemble of identically prepared physical systems. Searching for an intuitive explanation of long range correlations between outcomes of distant measurements, performed on pairs of physical systems prepared in a spin singlet state, John Bell analysed local realistic hidden variable models and proved that correlations consistent with these models satisfy Bell inequalities which are violated by some predictions of quantum mechanics. Several different local models were constructed, various inequalities proven and shown to be violated by experimental data. Some physicists concluded that Nature is definitely not local. We strongly disagree with this conclusion and we critically analyze some influential finite sample proofs of various inequalities and so called quantum Randi challenges. We also show how one can win so called Bell game.The violation of inequalities does not prove that local and causal explanation of correlations is impossible. The violation of inequalities gives only a strong argument against counterfactual definiteness and against a point of view according to which experimental outcomes are produced in irreducible random way. We also explain the meaning of sample homogeneity loophole and show how it can invalidate statistical significance tests. We point out that this loophole was not closed in several recent experiments testing local realism.
description: 17 pages, 72 references
Estimating Future Recycling Quantities of PV Modules in the European Union
Creators: name: Kleiss, G.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Sustainability and Recycling

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2370-2373
description: This work addresses an expected timeline for future quantities of to-be-recycled PV solar modules. The triggering point considered for recycling is end-of-life (breakdown, wear-out). A general adaption of the reliability engineering concept in terms of the Weibull failure model to the expected lifetime of PV modules is given and in particular a three-modal failure model (initial failures, service life failures, wear out) is reduced to two less complex failure models: a step functional model is presented, that can be applied when comprehensive knowledge for the service live failures (from a single manufacturer with precise data) is available. In case of absence of precise data a reduction to a generalizing single failure mode model is proposed and adapted. The latter concept is applicable when statements over an entire market (with a mix of products and manufactures) are done. Model calculations for the European market and the German market as an example show that the time-peak-shaved deployment of PV modules translates into a smooth and broadened distribution of the expected return time of the modules. Consequently, industry should be prepared much earlier to take back and recycle modules than commonly expected.
Proximity effect and Majorana bound states in clean semiconductor nanowires coupled to disordered superconductors
Creators: name: Cole, William S.
name: Sau, Jay D.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a semiconductor wire with strong spin-orbit coupling, which is proximity-coupled to a superconductor with chemical potential disorder. When tunneling at the semiconductor- superconductor interface is very weak, it is known that disorder in the superconductor does not affect the induced superconductivity nor, therefore, the effective topological superconductivity that emerges above a critical magnetic field. We demonstrate nonperturbatively how this result breaks down with stronger proximity coupling by obtaining the low-energy (i.e., subgap) excitation spectrum through direct numerical diagonalization of an appropriate BdG hamiltonian. With strong proximity coupling, we find that disorder in the parent superconductor suppresses the (non- topological) induced gap at zero magnetic field by disordering the induced pair potential. In the topological superconducting phase at large magnetic field, strong proximity coupling reduces the localization length of Majorana bound states, such that the induced disorder eliminates the topological gap while bulk Majorana zero modes emerge, even for short wires.
description: 6+3 pages, 4 figures
All optical implementation of a time-domain ptychographic pulse reconstruction set-up
Creators: name: Spangenberg, Dirk-Mathys
name: Brügmann, Michael
name: Rohwer, Erich
name: Feurer, Thomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: An all optical implementation of pulse reconstruction using time-domain ptychography is demonstrated showing excellent results. Setup and reconstruction are easy to implement and a number of drawbacks found in other second order techniques are removed, such as the beam splitter modifying the pulse under consideration, the time ambiguity, or the strict correspondence between time delay increment and temporal resolution. Ptychography generally performs superior to algorithms based on general projections, requires considerable less computational effort and is much less susceptible to noise.
description: 6 pages, 4 figures, submitted to Applied Optics
Measurements of heavy-flavour nuclear modification factor and elliptic flow in Pb--Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 2.76 TeV with ALICE
Creators: name: Dubla, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Heavy quarks, i.e. charm and beauty, are sensitive probes of the medium produced in high-energy heavy-ion collisions. They are produced in the early stage of the collisions and are expected to experience the whole collision evolution interacting with the medium constituents via both elastic and inelastic processes. The nuclear modification factor ($R_{\rm AA}$) and the elliptic flow ($v_{2}$) are two of the main experimental observables that allow us to investigate the interaction strength of heavy quarks with the medium. The ALICE collaboration measured the production and elliptic flow of open heavy-flavour hadrons via their hadronic and semi-leptonic decays to electrons at mid-rapidity and to muons at forward rapidity in Pb--Pb collisions. Recent results will be discussed, and model calculations including the interaction of heavy quarks with the hot, dense, and deconfined medium will be confronted with the data.
Interpolation Methods for Obtaining Maps on Solar Radiation for Colombian Geographical Conditions
Creators: name: Aldana, A.
name: Rodriguez Patarroyo, D.J.
name: Simbaqueva, O.
Publisher: name: WIP
Year: 2016
Subjects: Operation, Performance, Reliability and Sustainability of Photovoltaics
Solar Resource and Forecasting

description: 32nd European Photovoltaic Solar Energy Conference and Exhibition; 2374-2376
description: The study of solar radiation has many purposes not only in the field of meteorology but in the
development and implementation of new technologies to contribute to a sustainable economy. For the design,
implementation and management of any applications that make use of solar energy, it is necessary to know and to
characterize the energy resource. One way is through solar radiation values obtained from the meteorological observation
networks to reconstruct information about the solar energy potential. Climatic and atmospheric factors as well as the
geographic position of Colombia, are affecting the availability of solar resources. For this reason, in this work the solar
energy potential of the Colombian territory is quantified through the development of an atlas of global solar radiation,
based on data collected from stations of the Institute of Hydrology, Meteorology and Environmental Studies (IDEAM)
and under the time series between 2002 and 2013 on average.
Kinetic formulation of vortex vector fields
Creators: name: Bochard, Pierre
name: Ignat, Radu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35F21, 35B65

description: This article focuses on gradient vector fields of unit Euclidean norm in $\mathbb{R}^N$ . The stream functions associated to such vector fields solve the eikonal equation and the prototype is given by the distance function to a closed set. We introduce a kinetic formulation that characterizes stream functions whose level sets are either spheres or hyperplanes in dimension $N \geq 3$. Our main result proves that the kinetic formulation is a selection principle for the vortex vector field whose stream function is the distance function to a point.
Modeling and Analysis of Cellular Networks using Stochastic Geometry: A Tutorial
Creators: name: ElSawy, Hesham
name: Sultan-Salem, Ahmed
name: Alouini, Mohamed-Slim
name: Win, Moe Z.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper presents a tutorial on stochastic geometry (SG) based analysis for cellular networks. This tutorial is distinguished by its depth with respect to wireless communication details and its focus on cellular networks. The paper starts by modeling and analyzing the baseband interference in a basic cellular network model. Then, it characterizes signal-to-interference-plus-noise-ratio (SINR) and its related performance metrics. In particular, a unified approach to conduct error probability, outage probability, and rate analysis is presented. Although the main focus of the paper is on cellular networks, the presented unified approach applies for other types of wireless networks that impose interference protection around receivers. The paper then extends the baseline unified approach to capture cellular network characteristics (e.g., frequency reuse, multiple antenna, power control, etc.). It also presents numerical examples associated with demonstrations and discussions. Finally, we point out future research directions.
description: Submitted to IEEE Communications Surveys and Tutorials
Comments on SUSY Exact Action in 3D Supergravity
Creators: name: Iizuka, Norihiro
name: Tanaka, Akinori
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider 2+1 dimensional off-shell N = 1 pure supergravity that is constructed from graviton, gravitino and auxiliary field. We show that the $R^2$ supersymmetric invariant and $R^2_{μν}$ supersymmetric invariant are expressed as local supersymmetric exact terms up to mass terms for gravitino. In both cases, the mass parameter is proportional to the off-shell supersymmetric cosmological constant.
description: 5 pages
Holographic Conformal Partial Waves as Gravitational Open Wilson Networks
Creators: name: Bhatta, Atanu
name: Raman, Prashanth
name: Suryanarayana, Nemani V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a method to holographically compute the conformal partial waves in any decomposition of correlation functions of primary operators in conformal field theories using open Wilson network operators in the holographic gravitational dual. The Wilson operators are the gravitational ones where gravity is written as a gauge theory in the first order Hilbert-Palatini formalism. We apply this method to compute the global conformal blocks and partial waves in 2d CFTs reproducing many of the known results.
description: 33 pages, 5 figures
Linking neutrino oscillations to the nucleosynthesis of elements
Creators: name: Wu, Meng-Ru
name: Martinez-Pinedo, Gabriel
name: Qian, Yong-Zhong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutrino interactions with matter play an important role in determining the nucleosynthesis outcome in explosive astrophysical environments such as core-collapse supernovae or mergers of compact objects. In this article, we first discuss our recent work on the importance of studying the time evolution of collective neutrino oscillations among active flavors in determining their effects on nucleosynthesis. We then consider the possible active-sterile neutrino mixing and demonstrate the need of a consistent approach to evolve neutrino flavor oscillations, matter composition, and the hydrodynamics when flavor oscillations can happen very deep inside the supernovae.
description: 6 pages, 2 figures, OMEG 2015 conference proceedings, to appear in EPJ WOC proceedings