cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Planetary nurseries: vortices formed at smooth viscosity transition
Creators: name: Regaly, Zs.
name: Kadam, K.
name: Tarczay-Nehez, D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Excitation of Rossby wave instability and development of a large-scale vortex at the outer dead zone edge of protoplanetary discs is one of the leading theories that explains horseshoe-like brightness distribution in transition discs. Formation of such vortices requires a relatively sharp viscosity transition. Detailed modelling, however, indicates that viscosity transitions at the outer edge of the dead zone is relatively smooth. In this study, we present 2D global, non-isothermal, gas-dust coupled hydrodynamic simulations to investigate the possibility of vortex excitation at smooth viscosity transitions. Our models are based on a recently postulated scenario, wherein the recombination of charged particles on the surface of dust grains results in reduced ionisation fraction and in turn the turbulence due to magnetorotational instability. Thus, the alpha-parameter for the disc viscosity depends on the local dust-to-gas mass ratio. We found that the smooth viscosity transitions at the outer edge of the dead zone can become Rossby unstable and form vortices. A single large-scale vortex develops if the dust content of the disc is well coupled to the gas, however, multiple small-scale vortices ensue for the case of less coupled dust. As both type of vortices are trapped at the dead zone outer edge, they provide sufficient time for dust growth. The solid content collected by the vortices can exceed several hundred Earth masses, while the dust-to-gas density ratio within often exceeds unity. Thus, such vortices function as planetary nurseries within the disc, providing ideal sites for formation of planetesimals and eventually planetary systems.
description: accepted for publication in MNRAS
Hipposideros schistaceus K. Andersen 1918
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Hipposideridae
Hipposideros
Hipposideros schistaceus

description: Hipposideros schistaceus K. Andersen, 1918. Ann. Mag. Nat. Hist., ser. 9, 2:382. TYPE LOCALITY: India, Karnatika, Bellary. DISTRIBUTION: S India.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on pages 174-175, DOI: 10.5281/zenodo.7353060
The association between congenital malformations and childhood cancer : a register-based case-control study
Creators: name: Altmann, Anne E.
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.
Photon-Enhanced Thermionic Emission Solar Cells Based on Si, GaAs, and InP
Creators: name: Varpula, A.
name: Prunnila, M.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 331-333
description: Photovoltaic energy conversion at high temperatures can be realized with photon-enhanced-thermionicemission
(PETE) solar cells. This characteristic allows them to be combined in tandem with thermal concentrated
solar power systems. The cathode, which absorbs photons and works as the emitter electrode, is a crucial component
of the PETE device. We investigate the utilization of Si, GaAs, and InP as the cathode materials using numerical
device models. Simulated absorber characteristics and device efficiencies are presented and discussed. Our
simulations show that Si, GaAs, and InP are all promising materials for PETE solar cells, if surface recombination,
electron affinities, and thermal stability of these materials can be optimized. GaAs and InP show higher efficiencies
than Si due to their higher band gaps and strong photon absorption characteristics.
Quantum Decoherence and Thermalization at Finite Temperature within the Canonical Thermal State Ensemble
Creators: name: Novotny, M. A.
name: Jin, F.
name: Yuan, S.
name: Miyashita, S.
name: De Raedt, H.
name: Michielsen, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study measures of decoherence and thermalization of a quantum system $S$ in the presence of a quantum environment (bath) $E$. The entirety $S$$+$$E$ is prepared in a canonical thermal state at a finite temperature, that is the entirety is in a steady state. Both our numerical results and theoretical predictions show that measures of the decoherence and the thermalization of $S$ are generally finite, even in the thermodynamic limit, when the entirety $S$$+$$E$ is at finite temperature. Notably, applying perturbation theory with respect to the system-environment coupling strength, we find that under common Hamiltonian symmetries, up to first order in the coupling strength it is sufficient to consider $S$ uncoupled from $E$, but entangled with $E$, to predict decoherence and thermalization measures of $S$. This decoupling allows closed form expressions for perturbative expansions for the measures of decoherence and thermalization in terms of the free energies of $S$ and of $E$. Large-scale numerical results for both coupled and uncoupled entireties with up to 40 quantum spins support these findings.
description: 46 pages, 21 figures, long appendix includes the perturbation theory calculation details
Selecting embedding delays: An overview of embedding techniques and a new method using persistent homology
Creators: name: Tan, Eugene
name: Algar, Shannon
name: Corrêa, Débora
name: Small, Michael
name: Stemler, Thomas
name: Walker, David
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37B20, 37M10

description: Delay embedding methods are a staple tool in the field of time series analysis and prediction. However, the selection of embedding parameters can have a big impact on the resulting analysis. This has led to the creation of a large number of methods to optimise the selection of parameters such as embedding lag. This paper aims to provide a comprehensive overview of the fundamentals of embedding theory for readers who are new to the subject. We outline a collection of existing methods for selecting embedding lag in both uniform and non-uniform delay embedding cases. Highlighting the poor dynamical explainability of existing methods of selecting non-uniform lags, we provide an alternative method of selecting embedding lags that includes a mixture of both dynamical and topological arguments. The proposed method, {\em Significant Times on Persistent Strands} (SToPS), uses persistent homology to construct a characteristic time spectrum that quantifies the relative dynamical significance of each time lag. We test our method on periodic, chaotic and fast-slow time series and find that our method performs similar to existing automated non-uniform embedding methods. Additionally, $n$-step predictors trained on embeddings constructed with SToPS was found to outperform other embedding methods when predicting fast-slow time series.
Manufacturing of 300Wp Modules by Industrialization of PERC Solar Cell Technology Including Crystal, Cell and Module Development
Creators: name: Arndt, C.
name: Stichtenoth, D.
name: Müller, N.
name: Reinicke, M.
name: Grote, D.
name: Schröder, U.
name: Scherr, M.
name: Weser, M.
name: Lange, F.
name: Voigt, P.
name: Olwal, P.
name: Schubert, L.
name: Satian, F.
name: Doering, M.
name: Neitzert, M.
name: Geiler, T.
name: Meyer, K.
name: Gybin, O.
name: Dreckschmidt, F.
name: Neusel, J.
name: Altmannshofer, S.
name: Mach, M.
name: Markscheffel, C.
name: Froitzheim, A.
name: Müller, M.
name: Koch, C.
name: Fischer, G.
name: Schneiderlöchner, E.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Manufacturing Issues and Processing

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 376-381
description: The PERC-cell concept has become today’s industry standard for high efficiency crystalline Si solar cells. A 100MW
PERC-cell production line was set up. In this contribution we will discuss major milestones and key improvements of
further development based on this stable production line. A substantial power gain could be achieved by systematic
identification and improvement of key potentials along the whole value chain from crystal to module notably optimizing
the interfaces between crystal and solar cell and solar cell and module. We optimized lifetime of the Cz grown crystal, by
optimization of the crystal growing process. We improved the solar cell device by improving emitter saturation currentsn
which results in open circuit voltages up to 667mV. Additionally we reduced series resistance losses in the module
production process by using a cutting process. Further we reduced optical losses in the module by introducing new
module materials which are already available for mass production. More than 100.000 cells have been produced on
mass production equipment on a 24/7 basis which results in average efficiency of 20.4% and average module power of
299.2 Wp. The product has passed all internal and external qualification procedures of the IEC 61215 test criteria.
Finally we give an Roadmap outlook of 22.5% efficiency by continuous improvement of standard PERC technology.
Tau Now
Creators: name: Fargion, Daniele
name: Oliva, Pietro
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: UHECR and UHE neutrino map correlation seem to most inconclusive. We show here that a few peculiar UHECR narrow clustering might be connected to a first UHE muon neutrino tracks. Moreover we discuss the best filtered and amplified UHE neutrino astronomy painted by up-going tau airshower. Their discover by new projects could be reached soon.
description: 8 pages, 7 figure
Dietary and related factors in the health of Japanese expatriate workers
Creators: name: Stuckey, Rwth.
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.
Hipposideros semoni Matschie 1903
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Hipposideridae
Hipposideros
Hipposideros semoni

description: Hipposideros semoni Matschie, 1903. Denks. Med. Nat. Ges. Jena (Semon Zool. Forsch. Austr.), 8:774 (Heft 6:132). TYPE LOCALITY: Australia, Queensland, Cooktown. DISTRIBUTION: N Queensland (Australia), E New Guinea.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 175, DOI: 10.5281/zenodo.7353060
Electronic vortex structure of Fe-based superconductors: application to LiFeAs
Creators: name: Uranga, B. Mencia
name: Gastiasoro, Maria N.
name: Andersen, Brian M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Detailed tunneling spectroscopy of vortex core states can provide important insight to the momentum structure of the superconducting order parameter. We present a theoretical study of vortex bound states in iron-based superconductors by use of a realistic five-band model relevant to these systems, and superconductivity stabilized by spin-fluctuation generated pairing vertices yielding an $s\pm$ gap structure. The computed local density of states agrees remarkably well with both the bias dependence of the local conductance and the spatial structure of the low-bias conductance as obtained by scanning tunneling microscopy measurements on LiFeAs [T. Hanaguri et al., Phys. Rev. B 85, 214505 (2012)].
description: 7 pages, 6 figures
Thermally Robust, High-Temperature Metamaterial Emitters
Creators: name: Pfiester, N.
name: Naka, N.
name: DeMeo, D.
name: Shemelya, C.
name: Vandervelde, T.E.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 334-337
description: The efficiency of existing energy sources can be increased through the application of thermophotovoltaic
(TPV) technologies, which would reclaim lost heat and turn it back into usable electricity. In order to maximize the
efficiency of these sources, the conversion efficiency of the TPV system needs to be optimized. Using metamaterials, we
have created selective emitters that tailor the incident light spectrum to the band gap of specific diodes, offering the
potential to reduce diode heating and increase efficiency. Usage of metals such as platinum and tungsten makes the
emitters able to withstand the high temperatures required to create ideal spectra for III-V cells. Simulations from CST
Microwave Studio were used in the design process.
Active subthreshold dendritic conductances shape the local field potential
Creators: name: Ness, Torbjørn V
name: Remme, Michiel W H
name: Einevoll, Gaute T
Publisher: name: arXiv
Year: 2015
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: The main contribution to the local field potential (LFP) is thought to stem from synaptic input to neurons and the ensuing subthreshold dendritic processing. The role of active dendritic conductances in shaping the LFP has received little attention, even though such ion channels are known to affect the subthreshold neuron dynamics. Here we used a modeling approach to investigate the effects of subthreshold dendritic conductances on the LFP. Using a biophysically detailed, experimentally constrained model of a cortical pyramidal neuron, we identified conditions under which subthreshold active conductances are a major factor in shaping the LFP. We found that particularly the hyperpolarization-activated inward current, I$_{\rm h}$, can have a sizable effect and cause a resonance in the LFP power spectral density. To get a general, qualitative understanding of how any subthreshold active dendritic conductance and its cellular distribution can affect the LFP, we next performed a systematic study with a simplified model. We found that the effect on the LFP is most pronounced when (1) the synaptic drive to the cell is asymmetrically distributed (i.e., either basal or apical), (2) the active conductances are distributed non-uniformly with the highest channel densities near the synaptic input, and (3) when the LFP is measured at the opposite pole of the cell relative to the synaptic input. In summary, we show that subthreshold active conductances can be strongly reflected in LFP signals, opening up the possibility that the LFP can be used to characterize the properties and cellular distributions of active conductances.
Enhancing the Performance of a-Si:H Thin Film Solar Cells by Using Spectral Conversion Layer Based on Non-Toxic ZnO Quantum Dots
Creators: name: Lee, K.-S.
name: Yun, S.J.
name: Lim, J.W.
name: Yun, H.J..
name: Lee, Y.J.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 344-346
description: Spectral conversion phenomena such as down conversion, up conversion, and down shift have been
attracted to further enhance the device performance of solar cells. Owing to the thermodynamic limit of photoconversion
efficiency, spectral conversion has been a promising candidate to tune the absorption light spectrum.
Quantum dots have been reported higher efficiency as down conversion or down shift. Rigid surface passivation of
cadmium or lead based quantum dots might give chemical resistances or stabilities. However, non-toxic materials as
spectral converting quantum dots would be a long-term solution regarding to environmental aspects. In this study,
non-toxic zinc oxide based quantum dots are shown enhanced efficiency of hydrogenated amorphous silicon solar
cells as a spectral conversion layer with more than 5% of efficiency gain.
Advancing Long Wavelength Thermophotovoltaic Diodes
Creators: name: Licht, A.S.
name: Levinson, K.
name: Zayan, A.
name: DeMeo, D.
name: Vandervelde, T.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 338-343
description: The conventional thermophotovoltaic diode material is gallium antimonide (GaSb). However, with a
cut-off wavelength of 1.73μm, GaSb is optimized for high temperature sources (>1400°C). For lower temperature
applications, TPV diodes with longer cut-off wavelengths are required for optimal conversion of the spectrum.
Development of these longer wavelength diodes will enable TPV to harvest previously untapped sources of energy.
Bulk III-V, ternary and quaternary, compounds, such as InGaAs and InGaAsSb, have much longer cut-off
wavelengths than GaSb and have been explored extensively. This paper reviews the III-V materials that have been
studied for TPV and discusses alternative ideas for extending the diodes to even longer wavelengths. This includes
the addition of heavier III-V elements, such as thallium and bismuth, which have yet to be fabricated for TPV. In
addition to new materials, new structures may also extend TPV to longer wavelengths. We discuss the incorporation
of a superlattice structure, which is composed of alternating thin layers of material in which the bandgap is
determined by varying the thickness and periodicity of the constituent layers. Superlattice structures allow for
flexibility in band engineering and reduced Auger recombination rates. The most recent progress on these materials
is presented here.
Comet 108P/Ciffreo: The Blob
Creators: name: Kim, Yoonyoung
name: Jewitt, David
name: Luu, Jane
name: Li, Jing
name: Mutchler, Max
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Short-period comet 108P/Ciffreo is known for its peculiar double morphology, in which the nucleus is accompanied by a co-moving, detached, diffuse 'blob'. We report new observations of 108P/Ciffreo taken with the Hubble Space Telescope and the Nordic Optical Telescope and use them to determine the cause of this unusual morphology. The separation and the longevity of the blob across several orbits together rule out the possibility of a single, slow-moving secondary object near the primary nucleus. We use a model of coma particle dynamics under the action of solar gravity and radiation pressure to show that the blob is an artifact of the turn-around of particles ejected sunward and repelled by sunlight. Numerical experiments limit the range of directions which can reproduce the morphology and explain why the co-moving blob appearance is rare.
description: 31 pages, 8 figures, accepted for publication in AJ
Radiation Resistant III-V Photovoltaic Converters for Ultimate Applications
Creators: name: Vlasov, A.S.
name: Emelyanov, V.M.
name: Aronova, E.S.
name: Chosta, O.I.
name: Kalyuzhnyy, N.A.
name: Mintairov, S.A.
name: Shvarts, M.Z.
name: Trufanov, A.N.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 347-351
description: Radiation resistance of GaAs PV converters of 805–830 nm laser beams with the initial efficiency
greater than 50% at irradiation by 1.25 MeV neutrons has been investigated. It has been shown that, in achieving the
displacement damage doze of 1.7·1011 MeV/g, the short circuit current of tested PV converters for the 809 nm laser
beam decreases in 2 times in the n-p polarity structure and in 2.5 times – in p-n polarity. A possibility to raise the PV
converter radiation resistance by optimizing thicknesses of its photoactive layers allowing conserving up to half of
the initial efficiency at displacement damage doze of greater than 1012 MeV/g has been studied. A mathematical
model has been proposed, which describes processes of photo-induced annealing of radiation defects in GaAs PV
converters. It has been shown that, for laser beam PV converters, a substantial decrease in the radiation degradation
rate in the case of prevalence of damaging particles, when defects created by them can be annealed.
Colour vision and the road environment : conspicuity of road signs - does colour defectiveness matter?
Creators: name: O'Brien, Kylie A.
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.
Vertically Epitaxial Silicon Nanowire Growth without Metallic Catalyst
Creators: name: Nguyen, V.H.
name: Tutashkonko, S.
name: Hoshi, Y.
name: Usami, N.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 295-297
description: A new alternative of vertically epitaxial Si nanowire growth without introduction of any metallic
catalyst is reported. Using Si substrate patterned with anodic aluminum oxide (AAO), the selective growth was
carried out with gas source molecular beam epitaxy (MBE). The mechanism of Si epitaxial nanowire growth was
based on thermal decomposition of Si2H6 gas and surface reactions on Si surface at the bottom of AAO template. The
growth conditions such as flow rate was varied to optimize the Si nanowire growth at growth temperature of 700oC. It
was found that the selective growth with flow rate of 0.5 sccm resulted in 1μm-long Si nanowires; whereas, the Si
thin film was non-selectively formed on AAO template with flow rate more than 1sccm. We found that increase of
the growth temperature and decrease of the flow rate are useful to improve the selectivity. It hopefully opens the
possibility to realize high-quality Si nanowires which are promising for Si based-solar cell application.
EDEN Survey: Small Transiting Planet Detection Limits and Constraints on the Occurrence Rates for Late M Dwarfs within 15 pc
Creators: name: Dietrich, Jeremy
name: Apai, Dániel
name: Schlecker, Martin
name: Hardegree-Ullman, Kevin K.
name: Rackham, Benjamin V.
name: Kurtovic, Nicolas
name: Molaverdikhani, Karan
name: Gabor, Paul
name: Henning, Thomas
name: Chen, Wen-Ping
name: Mancini, Luigi
name: Bixel, Alex
name: Gibbs, Aidan
name: Boyle, Richard P.
name: Brown-Sevilla, Samantha
name: Burn, Remo
name: Delage, Timmy N.
name: Flores-Rivera, Lizxandra
name: Franceschi, Riccardo
name: Pichierri, Gabriele
name: Savvidou, Sofia
name: Syed, Jonas
name: Bruni, Ivan
name: Ip, Wing-Huen
name: Ngeow, Chow-Choong
name: Tsai, An-Li
name: Lin, Chia-Lung
name: Hou, Wei-Jie
name: Hsiao, Hsiang-Yao
name: Lin, Chi-Sheng
name: Lin, Hung-Chin
name: Basant, Ritvik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Earth-sized exoplanets that transit nearby, late spectral type red dwarfs will be prime targets for atmospheric characterization in the coming decade. Such systems, however, are difficult to find via wide-field transit surveys like Kepler or TESS. Consequently, the presence of such transiting planets is unexplored and the occurrence rates of short-period Earth-sized planets around late M dwarfs remain poorly constrained. Here, we present the deepest photometric monitoring campaign of 22 nearby late M dwarf stars, using data from over 500 nights on seven 1-2 meter class telescopes. Our survey includes all known single quiescent northern late M dwarfs within 15 pc. We use transit-injection-and-recovery tests to quantify the completeness of our survey, successfully identify most ($>80\%$) transiting short-period (0.5-1 d) super-Earths ($R > 1.9 R_\oplus$), and are sensitive ($\sim50\%$) to transiting Earth-sized planets ($1.0-1.2 R_\oplus$). Our high sensitivity to transits with a near-zero false positive rate demonstrates an efficient survey strategy. Our survey does not yield a transiting planet detection, yet it provides the most sensitive upper limits on transiting planets orbiting our target stars. Finally, we explore multiple hypotheses about the occurrence rates of short-period planets (from Earth-sized planets to giant planets) around late M dwarfs. We show, for example, that giant planets at short periods ($<1$ day) are uncommon around our target stars. Our dataset provides some insight into occurrence rates of short-period planets around TRAPPIST-1-like stars, and our results can help test planetary formation and system evolution models, as well as guide future observations of nearby late M dwarfs.
description: 27 pages, 11 figures
Laser Accelerated Ions from a Shock Compressed Gas Foil
Creators: name: Helle, M. H.
name: Gordon, D. F.
name: Kaganovich, D.
name: Chen, Y.
name: Palastro, J. P.
name: Ting, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present results of energetic laser-ion acceleration from a tailored, near solid density gas target. Colliding hydrodynamic shocks compress a pure hydrogen gas jet into a 70 μm thick target prior to the arrival of the ultra-intense laser pulse. A density scan reveals the transition from a regime characterized by a wide angle, low energy beam to one of a more focused beam with a high energy halo. In the latter case, three dimensional simulations show the formation of a Z-pinch driven by the axial current resulting from laser wakefield accelerated electrons. Ions at the rear of the target are then accelerated by a combination of space charge fields from accelerated electrons and Coulombic repulsion as the pinch dissipates.
description: 4 pages, 6 figues plus supplemental. arXiv admin note: substantial text overlap with arXiv:1507.04594
Fully relativistic multiple scattering calculations for general potentials
Creators: name: Ebert, H.
name: Braun, J.
name: Koedderitzsch, D.
name: Mankovsky, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The formal basis for fully relativistic Korringa-Kohn-Rostoker (KKR) or multiple scattering calculations for the electronic Green function in case of a general potential is discussed. Simple criteria are given to identify situations that require to distinguish between right and left hand side solutions to the Dirac equation when setting up the electronic Green function. In addition various technical aspects of an implementation of the relativistic KKR for general local and non-local potentials will be discussed.
Hot Carrier Relaxation and Phonon Dispersion in III-V Alloys
Creators: name: Smyth, T.
name: Yagi, S.
name: Wang, Y.
name: Dvorak, M.
name: Tayebjee, M.
name: Fabien, C.
name: Gunning, B.
name: Xia, H.
name: Feng, Y.
name: Tessarek, C.
name: Latzel, M.
name: Heilmann, M.
name: Chang, C.-W.
name: Wadekar, P.
name: Tu, L.W.
name: Shrestha, S.
name: Bremner, S.
name: Huang, S.
name: Doolittle, W.A.
name: Schmidt, T.W.
name: Sugiyama, M.
name: Christiansen, S.
name: Conibeer, G.J.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 316-321
description: The hot carrier solar cell is an approach that will circumvent the Shockley-Queisser limit by extracting
‘excess’ energy charge carriers from the cell absorber before they can thermalize with the lattice. Aiming to
construct such an absorber, the current work finds support for decay-blocking of zone-centre optical phonons,
building up a non-equilibrium phonon population that will continually re-supply carriers with energy until collection.
Such a bottleneck relies on pathways classifiable under either phonon decay blocking or phonon/carrier constriction.
The so-called Klemens decay mechanism can be limited by use of a medium with large phonon band gap such as
InN, and carrier and phonon transport can be delayed within multiple quantum well superlattices based in III-V
material systems. To minimize lattice mismatch and simplify fabrication, investigation has been carried out into
InGaAs and InGaN alloy combinations, either of which can be used to build a device widely varying in electronic
barrier height throughout its structure. We utilize femtosecond-resolved photoluminescence to measure carrier
relaxation times in these materials and employ Raman scattering spectroscopy together with Inelastic X-ray
Scattering to map the relevant phonon dispersions.
Attitudes towards organ donation among Melbourne's Italian community
Creators: name: Williams, Fiona Mary .
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.
Pratiche familiari, materialismo, Institutional Ethnography: riflessioni sull'opera di Dorothy Smith
Creators: name: Tartari, Morena
Publisher: name: Zenodo
Year: 2022
Subjects: Institutional Ethnography, Materialist method, Ethnomethodology, Dorothy Smith, family practices

description: Il paper illustra, attraverso due esempi empirici, il contributo che l’etnografia istituzionale di Dorothy Smith offre allo studio delle pratiche familiari.
description: Questo contributo è stato presentato nella Tavola Rotonda "Quale sociologia delle pratiche familiari? Ricezione, applicazioni e prospettive di ricerca" organizzata da Luca Trappolin, Dipartimento FISPPA, Università di Padova, 15.11.2022
Simulations of the progenitors of black hole-neutron star gravitational wave sources
Creators: name: Jiang, Long
name: Chen, Wen-Cong
name: Tauris, Thomas M.
name: Muller, Bernhard
name: Li, Xiang-Dong
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent discoveries of gravitational wave (GW) events most likely originating from black hole (BH) + neutron star (NS) mergers reveal the existence of BH+NS binaries. The formation of BH+NS binaries and their merger rates through isolated binary evolution have been investigated extensively with population synthesis simulations. A detailed stellar evolution modelings of the formation of this population, however, is missing in the literature. In this work, we perform the first complete 1D model of more than 30 BH+NS progenitor systems which are calculated self-consistently until the iron core collapse with infall velocity exceeds 1000 km s^-1. Focusing on the progenitors of BH- NS GW sources, we apply the MESA code starting from a post-common envelope binary with short orbital period (< 1 day) consisting of a BH and a zero-age main-sequence helium star that experiences stable mass transfer. These NS masses could be significantly larger depending on the exact mass cut during the supernova explosion. These BH+NS systems are likely to merge and produce GW events within a Hubble time. System C is a potential progenitor of a GW200115-like event, while Systems A and B are possible candidates for a GW200105-like event and may represent the final destiny of the X-ray binary SS433.
description: 14pages, 9 figures, Accepted to be published on ApJ
Diameter Reduction of Silicon Nanowires Using Ozone Oxidation Method for the Application to the All-Silicon Tandem Solar Cells
Creators: name: Kurokawa, Y.
name: Ishida, E.
name: Yamada, Y.
name: Kato, S.
name: Yamada, A.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 298-302
description: For the purpose of the application to the top cell in all-silicon tandem solar cells, we have fabricated
silicon nanowire arrays using metal assisted chemical etching with silica nanoparticles (MACES) method. In this
method, the diameter of SiNWs can be controlled to around 30 nm. However, to control the bandgap of SiNWs using
the quantum size effect, the diameter has to be less than 5 nm. In this study, to reduce the diameter, we tried ozone
thermal oxidation of SiNWs. Ozone enables us oxidation at lower temperature than oxygen. SiNW arrays fabricated
by MACES were oxidized under 24.9wt% ozone at 700 °C for 3 hours. From an energy dispersive x-ray spectroscopy
(EDS) mapping, it was confirmed that the oxygen concentration was increased in the whole of SiNW arrays after the
oxidation. Cross-sectional transmission electron microscopy (TEM) image showed that the silicon-part-diameter of a
SiNW was reduced to about 5 nm around the top of the SiNW. Therefore, ozone oxidation process is promising
method to reduce the diameter of SiNWs at lower temperature.
Theory of Driven Nonequilibrium Critical Phenomena
Creators: name: Feng, Baoquan
name: Yin, Shuai
name: Zhong, Fan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A system driven in the vicinity of its critical point by varying a relevant field in an arbitrary function of time is a generic system that possesses a long relaxation time compared with the driving time scale and thus represents a large class of nonequilibrium systems. For such a manifestly nonlinear nonequilibrium strongly fluctuating system, we show that there exists universal nonequilibrium critical behavior that is well described incredibly by its equilibrium critical properties. A dynamic renormalization-group theory is developed to account for the behavior. The weak driving may give rise to several time scales depending on its form and thus rich nonequilibrium phenomena of various regimes and their crossovers, negative susceptibilities, as well as violation of fluctuation-dissipation theorem. An initial condition that can be in either equilibrium or nonequilibrium but has longer correlations than the driving scales also results in a unique regime and complicates the situation. Implication of the results on measurement is also discussed. The theory may shed light on study of other nonequilibrium systems and even nonlinear science.
description: 15 pages, 11 figures
Lattice specific heat for the RMIn$_5$ (R = Gd, La, Y, M = Co, Rh) compounds: non-magnetic contribution subtraction
Creators: name: Facio, Jorge I.
name: Betancourth, D.
name: Bolecek, N. R. Cejas
name: Jorge, G. A.
name: Pedrazzini, Pablo
name: Correa, V. F.
name: Cornaglia, Pablo S.
name: Vildosola, V.
name: García, D. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyze theoretically a common experimental process used to obtain the magnetic contribution to the specific heat of a given magnetic material. In the procedure, the specific heat of a non-magnetic analog is measured and used to subtract the non-magnetic contributions, which are generally dominated by the lattice degrees of freedom in a wide range of temperatures. We calculate the lattice contribution to the specific heat for the magnetic compounds GdMIn$_5$ (M = Co, Rh) and for the non-magnetic YMIn$_5$ and LaMIn$_5$ (M = Co, Rh), using density functional theory based methods. We find that the best non-magnetic analog for the subtraction depends on the magnetic material and on the range of temperatures. While the phonon specific heat contribution of YRhIn$_5$ is an excellent approximation to the one of GdCoIn$_5$ in the full temperature range, for GdRhIn$_5$ we find a better agreement with LaCoIn$_5$, in both cases, as a result of an optimum compensation effect between masses and volumes. We present measurements of the specific heat of the compounds GdMIn$_5$ (M = Co, Rh) up to room temperature where it surpasses the value expected from the Dulong-Petit law. We obtain a good agreement between theory and experiment when we include anharmonic effects in the calculations.
Hipposideros speoris
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Hipposideridae
Hipposideros
Hipposideros speoris

description: Hipposideros speoris (Schneider, 1800). In Schreber, Die Säugethiere, pl. 59 b. TYPE LOCALITY: India, Madras, Tranquebar. DISTRIBUTION: Peninsular India, Sri Lanka. SYNONYMS: apiculatus, aureus, blythi, dukhunensis, marsupialis, pulchellus, templetonii.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 175, DOI: 10.5281/zenodo.7353060
Metapocyrtus (Orthocyrtus) willietorresi Cabras & Medina 2019
Creators: name: Cabras, Analyn A.
name: Cudera, Rizalyn
name: Mamon, Joelyn
name: Medina, Milton Norman D.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Metapocyrtus
Metapocyrtus willietorresi

description: Metapocyrtus (Orthocyrtus) willietorresi Cabras & Medina, 2019 Metapocyrtus (Artapocyrtus) willietorresi Cabras & Medina, 2019: 186 Type locality. Mt. Apo Natural Park, Davao del Sur. Type depository. UMCRC. Material examined. Male: Philippines - Mindanao / Kapatagan / Davao del Sur / December, 2021 / coll. LC (typed on white card). Presently in UMCRC. Remarks. Cabras and Medina (2019) placed the species under the subgenus Metapocyrtus Artapocyrtus. However, based on additional materials and further evidence, the authors obviously made some errors, and the species should be placed in the subgenus Metapocyrtus Orthocyrtus based on the characters mentioned by Cabras et al. (2018). In addition, Cabras and Medina (2019) described the species based on two specimens from Mt. Apo and declared it a new species due to the uniqueness of its elytral and pronotal markings consisting of circular patterns. The shape of the aedeagus of the newly acquired materials (Figs 15-17) further confirms membership of the species in Orthocyrtus and its relationship to the Orthocyrtus lanusinus species group. One of the defining characteristics of Orthocyrtus is the shape of its rostrum. Figs 18-21 show the dorsal view of the different species of Orthocyrtus mentioned in this paper.
description: Published as part of Cabras, Analyn A., Cudera, Rizalyn, Mamon, Joelyn & Medina, Milton Norman D., 2022, Two new species of Metapocyrtus (Orthocyrtus) Heller, 1912 (Coleoptera, Curculionidae, Entiminae) from southern Mindanao, Philippines, with ecological notes, pp. 133-147 in ZooKeys 1116 on page 133, DOI: 10.3897/zookeys.1116.83236
description: {"references": ["Cabras, A, Medina, MN, 2019. Metapocyrtus ginalopezae sp.n., a new Orthocyrtus from Davao de Oro. Baltic Journal of Coleopterology 19 (2): 205 - 2011", "Cabras, A, Medina, MN, Bollino, M, 2018. A new species of the subgenus Orthocyrtus Heller, 1912, genus Metapocyrtus Heller, 1912 (Coleoptera, Curculionidae, Entiminae, Pachyrhynchini) from Mindanao, with notes on its ecology. Baltic Journal of Coleopterology 18 (1): 39 - 46"]}
Thermionic/tunneling Carrier Collection from MQWs: How Different Mechanisms Affect Solar Cell Performance under 1 Sun and Concentration
Creators: name: Wang, Y.
name: Sodabanlu, H.
name: Fujii, H.
name: Toprasertpong, K.
name: Watanabe, K.
name: Sugiyama, M.
name: Nakano, Y.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 310-312
description: In our previous work, we have designed and fabricated a series of multiple quantum wells (MQWs) solar
cell which were different from conventional MQWs with the ultra-thin barrier ( < 4 nm) aiming at very efficient carrier
extraction via carrier tunneling mechanism in MQWs region. Preliminary results indicated that utilization of such a thin
barrier design, MQWs solar cell can improve carrier collection efficiency exhibiting as an enhanced current density with
the minimized open circuits voltage loss. So far, investigations have been only focused on transport mechanism of
carriers generated in MQWs region. Photon generated carriers from bulk material in a p-i-n MQWs cell has never been
discussed in details on the transport mechanism through periodical well and barrier part, though it has very much
significance as well. In this report, influence from barrier in MQWs region has been discussed on carriers generated in
the bulk in term s of barrier thickness and potential barriers’ height.
Long-Term Density Trend in the Mesosphere and Lower Thermosphere from Occultations of the Crab Nebula with X-Ray Astronomy Satellites
Creators: name: Katsuda, Satoru
name: Enoto, Teruaki
name: Lommen, Andrea N.
name: Mori, Koji
name: Motizuki, Yuko
name: Nakajima, Motoki
name: Ruhl, Nathaniel C.
name: Sato, Kosuke
name: Stober, Gunter
name: Tashiro, Makoto S.
name: Terada, Yukikatsu
name: Wood, Kent S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: We present long-term density trends of the Earth's upper atmosphere at altitudes between 71 and 116 km, based on atmospheric occultations of the Crab Nebula observed with X-ray astronomy satellites, ASCA, RXTE, Suzaku, NuSTAR, and Hitomi. The combination of the five satellites provides a time period of 28 yr from 1994 to 2022. To suppress seasonal and latitudinal variations, we concentrate on the data taken in autumn (49< doy <111) and spring (235< doy <297) in the northern hemisphere with latitudes of 0--40 degrees. With this constraint, local times are automatically limited either around noon or midnight. We obtain four sets (two seasons times two local times) of density trends at each altitude layer. We take into account variations due to a linear trend and the 11-yr solar cycle using linear regression techniques. Because we do not see significant differences among the four trends, we combine them to provide a single vertical profile of trend slopes. We find a negative density trend of roughly -5 %/decade at every altitude. This is in reasonable agreement with inferences from settling rate of the upper atmosphere. In the 100--110 km altitude, we found an exceptionally high density decline of about -12 %/decade. This peak may be the first observational evidence for strong cooling due to water vapor and ozone near 110 km, which was first identified in a numerical simulation by Akmaev et al. (2006). Further observations and numerical simulations with suitable input parameters are needed to establish this feature.
description: 38 pages, 9 figures, accepted for publication in Journal of Geophysical Research - Space Physics
1/f noise from the nonlinear transformations of the variables
Creators: name: Kaulakys, B.
name: Alaburda, M.
name: Ruseckas, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The origin of the low-frequency noise with power spectrum $1/f^β$ (also known as $1/f$ fluctuations or flicker noise) remains a challenge. Recently, the nonlinear stochastic differential equations for modeling $1/f^β$ noise have been proposed and analyzed. Here we use the self-similarity properties of this model with respect to the nonlinear transformations of the variable of these equations and show that $1/f^β$ noise of the observable may yield from the power-law transformations of well-known standard processes, like the Brownian motion, Bessel and similar stochastic processes. Analytical and numerical investigations of such techniques for modeling processes with $1/f^β$ fluctuations is presented.
description: 5 pages, 11 figures
Unusual Landau Level Pinning and Correlated $ν=1$ Quantum Hall Effect in Hole Systems Confined to Wide GaAs Quantum Wells
Creators: name: Liu, Yang
name: Hasdemir, S.
name: Shayegan, M.
name: Pfeiffer, L. N.
name: West, K. W.
name: Baldwin, K. W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In two-dimensional hole systems confined to wide GaAs quantum wells, where the heavy- and light- hole states are close in energy, we observe a very unusual crossing of the lowest two Landau levels as the sample is tilted in magnetic field. At a magic tilt angle $θ\simeq 34^{\circ}$, which surprisingly is independent of the well-width or hole density, in a large filling factor range near $ν=1$ the lowest two levels are nearly degenerate as evinced by the presence of two-component quantum Hall states. Remarkably, a quantum Hall state is seen at $ν=1$, consistent with a \textit{correlated} $Ψ_{111}$ state.
Electrical and Optical Characterization of Core-Shell InGaN/GaN Nanowire Solar Cells on Si (111)
Creators: name: Cheriton, R.
name: Han, S.
name: Trojnar, A.
name: Connie, A.
name: Nguyen, H.P.
name: Mi, Z.
name: Krich, J.J.
name: Hinzer, K.
Publisher: name: WIP
Year: 2014
Subjects: NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
New Materials and Concepts for Cells

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 307-309
description: We present electrical and optical characterization of InGaN/GaN nanowires on silicon with a goal to
develop an intermediate band solar cell based on this novel material system. We demonstrate current-voltage
characteristics illuminated with up to 16 suns AM 1.5G illumination, and the improved photoluminescence properties
of InGaN/GaN quantum dots inside GaN nanowireswith an AlGaN shell. A sub-bandgap contribution to the quantum
efficiency is observed, demonstrating the use of InGaN/GaN quantum dots as a possible route towards efficiency
beyond the Shockley-Queisser limit.