cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metal Assisted Etching of Sliver Solar Cells
Creators: name: Booker, K.
name: Brauers, M.
name: Crisp, E.
name: Rahman, S.
name: Weber, K.J.
name: Stocks, M.
name: Blakers, A.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 980-982
description: SLIVER solar cells are thin, flexible solar cells that can be manufactured by etching grooves into a silicon wafer. Using SLIVER cells increases the available surface area for light absorption and reduces silicon wastage. In this project, SLIVER precursors are fabricated by a novel method which utilises metal-assisted etching (MAE) with Au as catalyst. This enables the use of conventional <100> oriented wafers for the process in place of <110>. The MAE process can also simultaneously texture the surface of the silicon during groove etching, removing several processing steps.
Grooves have been etched to depth of 650μm with minimal widening and high pattern fidelity, maintaining the texture pattern along the whole SLIVER length. Etch rates can be controlled by various factors such as solution composition and temperature and are strongly dependent on parameters such as Au thickness and groove width. The production of SLIVER precursors with MAE allows a significant reduction in material costs and a simplification of the cell manufacturing process.
New orbital ephemerides for the dipping source 4U 1323-619: constraining the distance to the source
Creators: name: Gambino, A. F.
name: Iaria, R.
name: Di Salvo, T.
name: Del Santo, M.
name: Burderi, L.
name: Matranga, M.
name: Pintore, F.
name: Riggio, A.
name: Sanna, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: 4U 1323-619 is a low mass X-ray binary system that shows type I X-ray bursts and dips. The most accurate estimation of the orbital period is 2.941923(36) hrs and a distance from the source that is lower than 11 kpc has been proposed. We aim to obtain the orbital ephemeris, the orbital period of the system, as well as its derivative to compare the observed luminosity with that predicted by the theory of secular evolution. We took the advantage of about 26 years of X-ray data and grouped the selected observations when close in time. We folded the light curves and used the timing technique, obtaining 12 dip arrival times. We fit the delays of the dip arrival times both with a linear and a quadratic function. We locate 4U 1323-619 within a circular area centred at RA (J2000)= 201.6543\degree and DEC (J2000)= -62.1358\degree with an associated error of 0.0002\degree, and confirm the detection of the IR counterpart already discussed in literature. We estimate an orbital period of P=2.9419156(6) hrs compatible with the estimations that are present in the literature, but with an accuracy ten times higher. We also obtain a constraint on the orbital period derivative for the first time, estimating $\dot{P}=(8\pm 13)\times 10^{-12}$ s/s. Assuming that the companion star is in thermal equilibrium in the lower main sequence, and is a neutron star of 1.4 M$_{\odot}$, we infer a mass of 0.28$\pm$0.03 M$_{\odot}$ for the companion star. Assuming a distance of 10 kpc, we obtained a luminosity of (4.3$\pm$0.5)$\times 10^{36}$ erg s$^{-1}$, which is not in agreement with what is predicted by the theory of secular evolution. Using a 3D extinction map of the K$_{s}$ radiation in our Galaxy, we obtain a distance of 4.2$^{+0.8}_{-0.7}$ kpc at 68\% confidence level. (Abridged)
description: 10 pages, 8 figures, accepted for publication in Astronomy & Astrophysics
Interdigitated Back Contact Design Combined with Silicon Heterojunction Technology: A Promising Candidate for Very High Efficiency Industrial Solar Cells
Creators: name: Lachenal, D.
name: Bätzner, D.L.
name: Frammelsberger, W.
name: Legradic, B.
name: Meixenberger, J.
name: Papet, P.
name: Strahm, B.
name: Wahli, G.
name: Paviet-Salomon, B.
name: Tomasi, A.
name: Holm, N.
name: De Wolf, S.
name: Ballif, C.
name: Eypert, C.
name: Gaston, J.P.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 992-995
description: Interdigitated back contact cells present the advantages to reach very high current densities (Jsc) when compared to the standard solar cell technology with a front grid. Conversely, hetero junction technology enables very high open-circuit voltages, thanks to passivated contacts . The combination of both technologies, called IBC-HJT technology, allows the achievement of very high efficiencies as presented by Panasonic this year. This work presents our first IBC-HJT results with a simple cell process. Effects of front and back passivation layer properties are discussed presented while a main limitation of the in-situ shadow masking to pattern the doped amorphous layers is discussed. Best open-circuit voltages (Voc) up to 733 mV and Jsc values above 40 mA/cm2 demonstrate the potential and industrial relevance of such technology.
Cloeotis Thomas 1901
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Rhinonycteridae
Cloeotis

description: Cloeotis Thomas, 1901. Ann. Mag. Nat. Hist., ser. 7, 8:28. TYPE SPECIES: Cloeotis percivali Thomas, 1901. COMMENTS: Reviewed by Hill (1982).
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 170, DOI: 10.5281/zenodo.7353060
Friedrich Ludwig Imhoof-Hotze (1807-1893) an Ottilie Grossbach (1836-1919), verheiratete von Deschwanden, aufbewahrt im Nachlass von Joseph Wolfgang von Deschwanden (1819-1866)
Creators: name: Imhoof-Hotze, Friedrich Ludwig
Publisher: name: [s.n.]
Year: 1866

description: Brief aus Winterthur
Front Side Antireflection Concepts for Silicon Solar Cells with Diffractive Rear Side Structures
Creators: name: Bett, A.
name: Eisenlohr, J.
name: Höhn, O.
name: Bläsi, B.
name: Benick, J.
name: Repo, P.
name: Savin, H.
name: Goldschmidt, J.C.
name: Hermle, M.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 987-991
description: For thin silicon solar cells, standard pyramidal textures cannot be used as antireflection structures due to their thicknesses of several micrometres. In this paper, we investigate two alternative front side antireflection surfaces, which in combination with diffractive rear side structures could lead to low surface reflectance and advanced light trapping: firstly, planar multi-layer antireflection coatings, optimized using experimentally determined refractive indices, have been produced. The resulting hemispheric reflectance weighted with the AM1.5g spectrum (280 nm to 1000 nm) for two and three optimized planar layers were 3.67 % and 3.52 %, respectively, slightly higher than for a sample with inverted pyramids with 3.09 %. Secondly, black silicon was investigated. This acicular nanostructured silicon surface has a very low reflectance over a wide range of the spectrum (weighted reflectance 1.21 %). Reflection and transmission measurements show that a black silicon surface leads to scattering and light trapping. As we see significant absorption for energies below the silicon bandgap for all samples with structured surfaces, possible mechanisms leading to these measurement results were analysed.
Multicrystalline Silicon Solar Cell Improvement by Atmospheric Pressure Dry Etching Process
Creators: name: Kafle, B.
name: Trogus, D.
name: Seiffe, J.
name: Clochard, L.
name: Duffy, E.
name: Hofmann, M.
name: Rentsch, J.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 973-975
description: In this paper, a plasma-less atmospheric pressure dry texture process that is capable of forming nanostructures in the c-Si surface, has been investigated. The texture process uses diluted molecular fluorine (F2) as the process gas. Thermal activation of fluorine occurs on Si wafer surface in a dissociative chemisorption process leading to removal of Si in the form of volatile SiFx species. The etching process can be controlled to form nanostructures with different aspect ratios and surface reflection values. Nanotexturing of mc wafers was performed by removing very low amount of Si substrate during the texturing process (~0.6 μm). These nanotextured wafers were further processed into p-type Al-BSF solar cells. The nanostructured cells show excellent Voc and FF that are comparable to the reference cells. Significant gain in short circuit current (Jsc) was achieved by the virtue of an enhanced light coupling in nanotextured solar cells. The best conversion efficiency of 17.3% was achieved for the mc Al-BSF cell. Adaptation of the emitter on nanotextured surface has potential to further increase the conversion efficiency.
The VLT/SPHERE view of the ATOMIUM cool evolved star sample. I. Overview: Sample characterization through polarization analysis
Creators: name: Montargès, M.
name: Cannon, E.
name: de Koter, A.
name: Khouri, T.
name: Lagadec, E.
name: Kervella, P.
name: Decin, L.
name: McDonald, I.
name: Homan, W.
name: Waters, L. B. F. M.
name: Sahai, R.
name: Gottlieb, C. A.
name: Malfait, J.
name: Maes, S.
name: Pimpanuwat, B.
name: Jeste, M.
name: Danilovich, T.
name: De Ceuster, F.
name: Van de Sande, M.
name: Gobrecht, D.
name: Wallström, S. H. J.
name: Wong, K. T.
name: Mellah, I. El
name: Bolte, J.
name: Herpin, F.
name: Richards, A. M. S.
name: Baudry, A.
name: Etoka, S.
name: Gray, M. D.
name: Millar, T. J.
name: Menten, K. M.
name: Müller, H. S. P.
name: Plane, J. M. C.
name: Yates, J.
name: Zijlstra, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. Through the ATOMIUM project, based on an ALMA large program, we aim to present a consistent view of a sample of 17 nearby cool evolved stars (Aymptotic Giant Branch and red supergiant stars). Methods. Here we present VLT/SPHERE-ZIMPOL polarimetric maps obtained in the visible of 14 out of the 17 ATOMIUM sources. They were obtained contemporaneously with the ALMA high spatial resolution data. To help interpret the polarized signal, we produced synthetic maps of light scattering by dust, through 3D radiative transfer simulations with the RADMC3D code. Results. The degree of linear polarization (DoLP) observed by ZIMPOL spreads across several optical filters. We infer that it primarily probes dust located just outside of the point spread function, and in or near the plane of the sky, with a total optical depth close to unity in the line of sight, representing only a fraction of the total circumstellar dust. The maximum DoLP ranges from 0.03-0.38 depending on the source, fractions that can be reproduced by our 3D pilot models for grains composed of common dust species. The spatial structure of the DoLP shows a diverse set of shapes. Only for three sources do we note a correlation between the ALMA CO and SiO lines, which trace the gas density, and the DoLP, which traces the dust. Conclusion. The clumpiness of the DoLP and the lack of a consistent correlation between the gas and the dust location show that, in the inner circumstellar environment (CSE), dust formation occurs at very specific sites. This has potential consequences for the derived mass-loss rates and dust-to-gas ratio in the inner region of the CSE. Except for $π^1$~Gru and perhaps GY Aql, we do not detect interactions between the circumstellar wind and the hypothesized companions that shape the wind at larger scales. This suggests that the orbits of any other companions are tilted out of the plane of the sky.
description: Accepted for publication in Astronomy & Astrophysics. 22 pages, 15 figures, 5 tables
Inkjet-Printed Diffusion Sources
Creators: name: Stüwe, D.
name: Keding, R.
name: Salim, A.
name: Jahn, M.
name: Efinger, R.
name: Clement, F.
name: Thaidigsmann, B.
name: Korvink, J.G.
name: Tüshaus, C.
name: Barth, S.
name: Doll, O.
name: Biro, D.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 976-979
description: This paper presents an up-scalable solution for the formation of doped areas based on inkjet printing of boron and phosphorous doping inks. The influence of the thickness of the inkjet-printed doping source layers and the diffusion temperature on the sheet resistance is evaluated. In addition, the doping profiles are measured. For a diffusion temperature of 950 °C a sheet resistance of 50 Ω/sq is achieved with the boron ink. At the same temperature a sheet resistance of 18 Ω/sq is achieved with the boron ink. The process is then for the first time applied for the fabrication of back-contact back-junction solar cells with inkjet-printed p+-emitter. The best solar cell features an efficiency of  = 20.6 %. To date, these are the best solar cells with an inkjet-printed doping source. Lifetime samples that are processed in parallel exhibit an emitter saturation current density below 90 fA/cm2.
Ultrafast single-nanowire multi-terahertz spectroscopy with sub-cycle temporal resolution
Creators: name: Eisele, M.
name: Cocker, T. L.
name: Huber, M. A.
name: Plankl, M.
name: Viti, L.
name: Ercolani, D.
name: Sorba, L.
name: Vitiello, M. S.
name: Huber, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Phase-locked ultrashort pulses in the rich terahertz (THz) spectral range have provided key insights into phenomena as diverse as quantum confinement, first-order phase transitions, high-temperature superconductivity, and carrier transport in nanomaterials. Ultrabroadband electro-optic sampling of few-cycle field transients can even reveal novel dynamics that occur faster than a single oscillation cycle of light. However, conventional THz spectroscopy is intrinsically restricted to ensemble measurements by the diffraction limit. As a result, it measures dielectric functions averaged over the size, structure, orientation and density of nanoparticles, nanocrystals or nanodomains. Here, we extend ultrabroadband time-resolved THz spectroscopy (20 - 50 THz) to the sub-nanoparticle scale (10 nm) by combining sub-cycle, field-resolved detection (10 fs) with scattering-type near-field scanning optical microscopy (s-NSOM). We trace the time-dependent dielectric function at the surface of a single photoexcited InAs nanowire in all three spatial dimensions and reveal the ultrafast ($
MIRI/JWST observations reveal an extremely obscured starburst in the z=6.9 system SPT0311-58
Creators: name: Álvarez-Márquez, J.
name: Gómez, A. Crespo
name: Colina, L.
name: Neeleman, M.
name: Walter, F.
name: Labiano, A.
name: Pérez-González, P.
name: Bik, A.
name: Noorgaard-Nielsen, H. U.
name: Ostlin, G.
name: Wright, G.
name: Alonso-Herrero, A.
name: Azollini, R.
name: Caputi, K. I.
name: Eckart, A.
name: Fèvre, O. Le
name: García-Marín, M.
name: Greve, T. R.
name: Hjorth, J.
name: Ilbert, O.
name: Kendrew, S.
name: Pye, J. P.
name: Tikkanen, T.
name: Topinka, M.
name: van der Werf, P.
name: Ward, M.
name: van Dishoeck, E. F.
name: Güdel, M.
name: Henning, Th.
name: Lagage, P. O.
name: Ray, T.
name: Waelkens, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using MIRI on-board JWST we present mid-infrared sub-arcsec imaging (MIRIM) and spectroscopy (MRS) of the hyperluminous infrared system SPT0311-58 at z=6.9. MIRI observations are compared with existing ALMA far-infrared continuum and [CII]158$μ$m imaging. Even though the ALMA observations suggests very high star formation rates (SFR) in the eastern (E) and western (W) galaxies of the system, the H$α$ line is not detected. This, together with the detection of the Pa$α$ line, implies very high optical nebular extinction with lower limits of 4.2 (E) and 3.9 mag (W), and even larger 5.6 (E) and 10.0 (W) for SED derived values. The extinction-corrected Pa$α$ SFRs are 383 and 230M$_{\odot}$yr$^{-1}$ for the E and W galaxies, respectively. This represents 50% of the SFRs derived from the [CII]158$μ$m line and infrared light for the E galaxy and as low as 6% for the W galaxy. The MIRI observations reveal a clumpy stellar structure, with each clump having 3 to 5 $\times$10$^{9}$M$_\mathrm{\odot}$, leading to a total stellar mass of 2.0 and 1.5$\times$10$^{10}$M$_\mathrm{\odot}$ for the E and W galaxies, respectively. The specific SFR in the stellar clumps ranges from 25 to 59Gyr$^{-1}$, which are 3 to 10 times larger than the values measured in galaxies of similar mass at redshifts 6 to 8. The overall gas mass fraction is $M_\mathrm{gas}$/$M_*\sim3$, similar to that of z=4.5-6 star-forming galaxies. The observed properties of SPT0311-58 such as the clumpy distribution at sub(kpc) scales and the very high average extinction are similar to those observed in low- and intermediate-z LIRGs and ULIRGs, even though SPT0311-58 is observed only 800 Myr after the Big Bang. Massive, heavily obscured, clumpy starburst systems like SPT0311-58 likely represent the early phases in the formation of massive high-z bulge/spheroids and luminous quasars.
description: 18 pages, 8 figures, final published version in A&A
Cloeotis percivali Thomas 1901
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Rhinonycteridae
Cloeotis
Cloeotis percivali

description: Cloeotis percivali Thomas, 1901. Ann. Mag. Nat. Hist., ser. 7, 8:28. TYPE LOCALITY: Kenya, Coast Prov., Takaungu. DISTRIBUTION: Kenya, Tanzania, S Zaire, Mozambique, Zambia, Zimbabwe, SE Botswana, Swaziland, Transvaal (South Africa). SYNONYMS: australis.
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 170, DOI: 10.5281/zenodo.7353060
SiCN:H Layers Deposited by PECVD to Decrease LID on P-Type Cz-Si Cells
Creators: name: Pouliquen, S.
name: Marot, Y.
name: Zauner, A.
name: Hong, J.
name: Urrejola, E.
name: Coeuret, F.
name: Gouhinec, F.
name: Leterrier, Y.
name: Charpentier, C.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 946-949
description: Solar cells manufactured on boron doped Czochralski-grown silicon (Cz-Si) degrade in performance after several hours under illumination until a stable efficiency is reached. This effect is the Light Induced Degradation (LID) which is attributed to the activation of specific metastable defect in the silicon bulk. The metastable defect is correlated with the boron and oxygen concentration in the materials. Kang and co-workers showed that the LID could be reduced by replacing the standard hydrogenated silicon nitride (SiN:H) anti-reflection film by a carbon–rich SiN:H film deposited from polymer solid or liquid source. In this paper, different SiCN:H layers and SiN:H/SiCN:H stacks were studied. Chemical, optical and passivation properties are presented. To obtain consolidated results, 100 cells with SiN:H and SiN:H/SiCN:H were performed. The results present the efficiencies before and after light soaking, up to 260 hours. The efficiencies, Voc and fill factor are presented during the illumination for the standard SiN:H layers and the SiN:H/SiCN:H stack.
After illumination, for the cells based on a double-layer SiCN:H/SiN:H antireflective coating (ARC), the efficiencies were improved and were higher than the standard SiN:H reference cell. Up on light soaking the LID was less pronounced for the carbon containing SiN:H/SiCN:H based cells.
Hydrogen Plasma Etching for Heterojunction Silicon Solar Cell Application Using an Industrial ICPECVD Machine
Creators: name: Tang, M.
name: Ge, J.
name: Wong, J.
name: Ling, Z.P.
name: Huber, M.R.
name: Zhang, Z.
name: Dörr, M.
name: Dippell, T.
name: Hohn, O.
name: Wohlfart, P.
name: Aberle, A.G.
name: Mueller, T.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 966-968
description: This paper describes the development of a hydrogen plasma etching process to substitute the commonly applied hydrofluoric acid dip prior to surface passivation of crystalline silicon wafers. For the plasma etching experiments, an industrial inline inductively coupled plasma-enhanced chemical vapour deposition reactor (SINGULARHET, SINGULUS TECHNOLOGIES, Germany) was used. The work shows that after surface passivation of Si wafers with symmetrically deposited amorphous silicon, the plasma etched samples showed similar high lifetimes up to 3.7 ms on 100 μm thick 3 Ωcm wafers, compared to other high quality passivation schemes using hydrofluoric acid dipping.
Rotational properties of the Haumea family members and candidates: Short-term variability
Creators: name: Thirouin, Audrey
name: Sheppard, Scott S.
name: Noll, Keith S.
name: Moskovitz, Nicholas A.
name: Ortiz, Jose-Luis
name: Doressoundiram, Alain
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Haumea is one of the most interesting and intriguing transneptunian objects (TNOs). It is a large, bright, fast rotator, and its spectrum indicates nearly pure water ice on the surface. It has at least two satellites and a dynamically related family of more than ten TNOs with very similar proper orbital parameters and similar surface properties. The Haumean family is the only one currently known in the transneptunian belt. Various models have been proposed but the formation of the family remains poorly understood. In this work, we have investigated the rotational properties of the family members and unconfirmed family candidates with short-term variability studies, and report the most complete review to date. We present results based on five years of observations and report the short-term variability of five family members, and seven candidates. The mean rotational periods, from Maxwellian fits to the frequency distributions, are 6.27+/-1.19 h for the confirmed family members, 6.44+/-1.16 h for the candidates, and 7.65+/-0.54 h for other TNOs (without relation to the family). According to our study, there is a suggestion that Haumea family members rotate faster than other TNOs, however, the sample of family member is still too limited for a secure conclusion. We also highlight the fast rotation of 2002 GH32. This object has a 0.36+/-0.02 mag amplitude lightcurve and a rotational period of about 3.98 h. Assuming 2002 GH32 is a triaxial object in hydrostatic equilibrium, we derive a lower limit to the density of 2.56 g cm^-3. This density is similar to Haumea's and much more dense than other small TNO densities.
description: Accepted for publication, AJ
Risk factors for hepatitis C transmission in the Victorian population : a telephone survey
Creators: name: Watson, Rowland .
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.
On the degree of stochastic asymmetry in the tidal tails of star clusters
Creators: name: Pflamm-Altenburg, J.
name: Kroupa, P.
name: Thies, I.
name: Jerabkova, T.
name: Beccari, G.
name: Prusti, T.
name: Boffin, H. M. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context: Tidal tails of star clusters are commonly understood to be populated symmetrically. Recently, the analysis of Gaia data revealed large asymmetries between the leading and trailing tidal tail arms of the four open star clusters Hyades, Praesepe, Coma Berenices and NGC 752. Aims: As the evaporation of stars from star clusters into the tidal tails is a stochastic process, the degree of stochastic asymmetry is quantified in this work. Methods: For each star cluster 1000 configurations of test particles are integrated in the combined potential of a Plummer sphere and the Galactic tidal field over the life time of the particular star cluster. For each of the four star clusters the distribution function of the stochastic asymmetry is determined and compared with the observed asymmetry. Results: The probabilities for a stochastic origin of the observed asymmetry of the four star clusters are: Praesepe ~1.7 sigma, Coma Berenices ~2.4 sigma, Hyades ~6.7 sigma, NGC 752 ~1.6 sigma. Conclusions: In the case of Praesepe, Coma Berenices and NGC 752 the observed asymmetry can be interpreted as a stochastic evaporation event. However, for the formation of the asymmetric tidal tails of the Hyades additional dynamical processes beyond a pure statistical evaporation effect are required.
description: accepted for publication by A&A
Gravitational radiation from neutron stars deformed by crustal Hall drift
Creators: name: Suvorov, Arthur George
name: Mastrano, Alpha
name: Geppert, Ulrich
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A precondition for the radio emission of pulsars is the existence of strong, small-scale magnetic field structures (`magnetic spots') in the polar cap region. Their creation can proceed via crustal Hall drift out of two qualitatively and quantitatively different initial magnetic field configurations: a field confined completely to the crust and another which penetrates the whole star. The aim of this study is to explore whether these magnetic structures in the crust can deform the star sufficiently to make it an observable source of gravitational waves. We model the evolution of these field configurations, which can develop, within $\sim 10^4$ -- $10^5$ yr, magnetic spots with local surface field strengths $\sim 10^{14}$ G maintained over $\gtrsim 10^6$ yr. Deformations caused by the magnetic forces are calculated. We show that, under favourable initial conditions, a star undergoing crustal Hall drift can have ellipticity $ε\sim 10^{-6}$, even with sub-magnetar polar field strengths, after $\sim 10^5$ yr. A pulsar rotating at $\sim 10^2$ Hz with such $ε$ is a promising gravitational-wave source candidate. Since such large deformations can be caused only by a particular magnetic field configuration that penetrates the whole star and whose maximum magnetic energy is concentrated in the outer core region, gravitational wave emission observed from radio pulsars can thus inform us about the internal field structures of young neutron stars.
description: 14 pages, 6 figures, 5 tables. Accepted for publication in MNRAS
A systematic review, using meta-analysis, of the efficacy of sertindole in the treatment of schizophrenia
Creators: name: Paoletti, N. .
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.
Role of small-scale impulsive events in heating the X-ray bright points of the quiet Sun
Creators: name: Mondal, Biswajit
name: Klimchuk, James A
name: Vadawale, Santosh V.
name: Sarkar, Aveek
name: Del Zanna, Giulio
name: Athiray, P. S.
name: Mithun, N. P. S.
name: Mason, Helen E.
name: Bhardwaj, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Small-scale impulsive events, known as nanoflares, are thought to be one of the prime candidates that can keep the solar corona hot at its multi-million Kelvin temperature. Individual nanoflares are difficult to detect with the current generation instruments; however, their presence can be inferred through indirect techniques such as a Differential Emission Measure (DEM) analysis. Here we employ this technique to investigate the possibility of nanoflare heating of the quiet corona during the minimum of solar cycle 24. During this minimum, active regions (ARs) were absent on the solar-disk for extended periods. In the absence of ARs, X-ray bright points (XBP) are the dominant contributor to disk-integrated X-rays. We estimate the DEM of the XBPs using observations from the Solar X-ray Monitor (XSM) onboard the Chandrayaan-2 orbiter and the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamic Observatory. XBPs consist of small-scale loops associated with bipolar magnetic fields. We simulate such XBP loops using the EBTEL hydrodynamic code. The lengths and magnetic field strengths of these loops are obtained through a potential field extrapolation of the photospheric magnetogram. Each loop is assumed to be heated by random nanoflares having an energy that depends on the loop properties. The composite nanoflare energy distribution for all the loops has a power-law slope close to -2.5. The simulation output is then used to obtain the integrated DEM. It agrees remarkably well with the observed DEM at temperatures above 1 MK, suggesting that the nanoflare distribution, as predicted by our model, can explain the XBP heating.
description: Submitted in the Astrophysical Journal, 20 pages, 10 figures
An Empirical Study on the Characteristics of Connected Knowledge Subgraphs on Stack Overflow
Creators: name: Wolf, Grey
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461202
subject: Empirical software engineering

description: An Empirical Study on the Characteristics of Connected Knowledge Subgraphs on Stack OverflowThis repository provides the code for constructing and data mining Connected Knowledge Subgraphs. It includes the construction of Connected Knowledge Subgraphs, the computation of network parameters for subgraphs, samples and results for qualitative analysis, and data mining for quantitative analysis.DatasetWe utilize the official Stack Overflow dump database as the underlying dataset. You can access the data via the following link: https://archive.org/details/stackexchange_20221206For the qualitative analysis, we have provided sample data and sampling results, which you can find in the repository.DependencyPackage Version------------------- -------contourpy 1.0.7cycler 0.11.0et-xmlfile 1.1.0fonttools 4.39.4importlib-resources 5.12.0joblib 1.3.2kiwisolver 1.4.4matplotlib 3.7.1mpmath 1.3.0networkx 3.1numpy 1.24.3openpyxl 3.1.2packaging 23.1pandas 2.0.2Pillow 9.5.0pip 22.3.1powerlaw 1.5PyMySQL 1.0.3pyparsing 3.0.9python-dateutil 2.8.2pytz 2023.3scikit-learn 1.3.0scipy 1.11.2seaborn 0.12.2setuptools 65.5.1six 1.16.0threadpoolctl 3.2.0tzdata 2023.3wheel 0.38.4xlrd 2.0.1zipp 3.15.0StartFirst, you should download the dataset from our link.You can construct the connected knowledge subgraphs by running MakeMaps.py.You can get the subgraphs metrics by running clustering_coefficient.py, average_degree.py and biggest_component.py.You can get the samples for the qualitative analysis by viewing samples.xlsx.You can get the quantitative analysis methods by running number_pic.py, getView_perPost_linked.py, updatetime.py and error_number.py.ReferenceIf you use this code, please consider citing us.
Why does high pressure destroy co-non-solvency of PNIPAm in aqueous methanol?
Creators: name: de Oliveira, Tiago E.
name: Netz, Paulo A.
name: Mukherji, Debashish
name: Kremer, Kurt
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: It is well known that poly(N-isopropylacrylamide) (PNIPAm) exhibits an interesting, yet puzzling, phenomenon of co-non-solvency. Co-non-solvency occurs when two competing good solvents for PNIPAm, such as water and alcohol, are mixed together. As a result, the same PNIPAm collapses within intermediate mixing ratios. This complex conformational transition is driven by preferential binding of methanol with PNIPAm. Interestingly, co-non-solvency can be destroyed when applying high hydrostatic pressures. In this work, using a large scale molecular dynamics simulation employing high pressures, we propose a microscopic picture behind the suppression of the co-non-solvency phenomenon. Based on thermodynamic and structural analysis, our results suggest that the preferential binding of methanol with PNIPAm gets partially lost at high pressures, making the background fluid reasonably homogeneous for the polymer. This is consistent with the hypothesis that the co-non-solvency phenomenon is driven by preferential binding and is not based on depletion effects.
Accelerating the Solar Cell Efficiency & Cost of Ownership Roadmap Using Ion Implantation
Creators: name: Latchford, I.
name: Mandrell, L.
name: Adibi, B.
name: Smith, C.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 943-945
description: Growth in the solar market over the coming years will drive new demands in cell manufacturing capacity at
higher cell efficiency levels and lower costs/watt. At the same time manufacturers will focus intently on the cell technology
roadmap strategy that offers faster transitions to higher cell efficiency levels and lower costs/watt to maintain a competitive
edge. Strategic placement of new technologies (such as ion implant) will be driven into the new lines earlier to gain the much
needed manufacturing and integration knowledge ahead of the necessary technology shifts, which are bound to accelerate.
Ion Implant has already demonstrated the capability to enhance p-mono cell efficiency while lowering cost / watt compared
to traditional diffusion flows. Key enhancements made by ion implant include highly tunable and repeatable emitter profiles
offering higher cell efficiency, and tighter distribution, single sided doping, patterned dopant capability and a pathway to ntype
processing. This cell roadmap is proven with older process technology steps and therefore is low risk; however the
number of steps needed using traditional cell processing will not be cost competitive going forward. This paper describes a
detailed cost of ownership model developed for the future cell technology to allow a comparison of the traditional processing
steps vs. ion implant flow. The data shows that the higher cell efficiency technology gains more by step count reduction and
therefore more impactful cost reduction.
Coelops Blyth 1848
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Hipposideridae
Coelops

description: Coelops Blyth, 1848. J. Asiat. Soc. Bengal, 17:251. TYPE SPECIES: Coelops frithii Blyth, 1848. SYNONYMS: Chilophylla. COMMENTS: Includes Chilophylla; see Ellerman and Morrison-Scott (1951:131).
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 170, DOI: 10.5281/zenodo.7353060
description: {"references": ["Ellerman, J. R., and T. C. S. Morrison-Scott. 1951. Checklist of Palaearctic and Indian mammals 1758 to 1946. Trustees of the British Museum (Natural History), London, 810 pp."]}
Review of Megen de Bruin-Molé. Gothic Remixed. Monster Mashups and Frankenfictions in 21st-Century Culture. London-New York, Bloomsbury Academic, 2020. Paperback ed. 2021
Creators: name: Saggini, Francesca
Publisher: name: Zenodo
Year: 2023
Subjects: adaptation
appropriation
frankenfictions
Mary Shelley
Frankenstein

description: Invited review of Megen de Bruin-Molé. Gothic Remixed. Monster Mashups and Frankenfictions in 21st-Century Culture. London-New York, Bloomsbury Academic, 2020. Paperback ed. 2021
Design of a Bifacial Si Solar Cell with Uniformly Doped B Implanted and P Thermal Diffused Layers
Creators: name: Eisenberg, Y.
name: Grigorieva, G.
name: Kagan, M.
name: Zviagina, K.
name: Kreinin, L.
name: Bordin, N.
name: Eisenberg, N.
name: Hava, S.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 950-953
description: Combined thermal diffusion – ion implantation technology, which was extensively used for n+-p-p+ space Si cell fabrication, can be applied also for terrestrial cell production. Starting Si of both p- and n- conductivity types can be used. The drawback of B ion implantation as a doping process for p+ layer formation is the introduction of a defect layer behind the implanted layer that can result in additional recombination losses. The effect of 30 keV B ion implantation and subsequent annealing was studied. Back IQE analysis of n+-p-p+ cells reveals the main factors affecting the formation of the defect layer and its influence on solar cell base recombination. Among these factors are: implantation dose, starting Si parameters and injection level during the measurements. Decrease of implantation dose and increase of annealing temperature suppress the formation of the defect layer. Experiments with annealing temperature in the range 910 - 1015 oC were carried out. SiN cap layer as a tool for decrease of out- diffusion can be used for rminimizing the implantation dose.
The depth profiles of electro active B atoms after annealing at high temperatures are quite deep, and due to the back junction n+-n-p+ cell design was found as preferable. This is demonstrated by simulation of front and back IQE of the cell confirmed by measurement results. According to simulation the effective surface recombination at n+-n high-low barrier can be improved by using high resistivity Si (above ~ 5 .cm).
Thermal oxidation was tested as a relative simple and controllable process for the p+ layer passivation. The influence of the positive charge which is typical for a silicon oxide film was estimated. According to simulation, the surface doping concentration is the dominating parameter influencing the effective surface recombination. The charge in the passivation layer is not influencing significantly when surface doping concentration is relatively high (above ~1019 cm-3)
Ultrafast mid-infrared nanoscopy of strained vanadium dioxide nanobeams
Creators: name: Huber, M. A.
name: Plankl, M.
name: Eisele, M.
name: Marvel, R. E.
name: Sandner, F.
name: Korn, T.
name: Schüller, C.
name: Haglund,, R. F.
name: Huber, R.
name: Cocker, T. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Long regarded as a model system for studying insulator-to-metal phase transitions, the correlated electron material vanadium dioxide (VO$_2$) is now finding novel uses in device applications. Two of its most appealing aspects are its accessible transition temperature ($\sim$341 K) and its rich phase diagram. Strain can be used to selectively stabilize different VO$_2$ insulating phases by tuning the competition between electron and lattice degrees of freedom. It can even break the mesoscopic spatial symmetry of the transition, leading to a quasi-periodic ordering of insulating and metallic nanodomains. Nanostructuring of strained VO$_2$ could potentially yield unique components for future devices. However, the most spectacular property of VO$_2$ - its ultrafast transition - has not yet been studied on the length scale of its phase heterogeneity. Here, we use ultrafast near-field microscopy in the mid-infrared to study individual, strained VO$_2$ nanobeams on the 10 nm scale. We reveal a previously unseen correlation between the local steady-state switching susceptibility and the local ultrafast response to below-threshold photoexcitation. These results suggest that it may be possible to tailor the local photo-response of VO$_2$ using strain and thereby realize new types of ultrafast nano-optical devices.
Pilot survey of knowledge of septic system owners and development of community resource materials
Creators: name: Cannon, Jacqueline .
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.
An APEX study of molecular outflows in FUor-type stars
Creators: name: de Miera, Fernando Cruz-Sáenz
name: Kóspál, Ágnes
name: Ábrahám, Péter
name: Csengeri, Timea
name: Féher, Orsolya
name: Güsten, Rolf
name: Henning, Thomas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: FU Orionis-type objects (FUors) are low-mass pre-main-sequence objects which go through a short-lived phase (~100 years) of increased mass accretion rate (from 10^-8 to 10^-4 M_sun yr^-1). These eruptive young stars are in the early stages of stellar evolution and, thus, still deeply embedded in a massive envelope that feeds material to the circumstellar disk that is then accreted onto the star. Some FUors drive molecular outflows, i.e. low-velocity wide-angle magneto-hydrodynamical winds, that inject energy and momentum back to the surrounding envelopes, and help clear the material surrounding the young star. Here we present a 12CO (3--2), 13CO (3--2) and 12CO (4--3) survey of 20 FUor-type eruptive young stars observed with APEX. We use our 13CO (3--2) observations to measure the masses of the envelopes surrounding each FUor and find an agreement with the FUor evolutionary trend found from the 10um silicate feature. We find outflows in 11 FUors, calculate their masses and other kinematic properties, and compare these with those of outflows found around quiescent young stellar objects gathered from the literature. This comparison indicates that outflows in FUors are more massive than outflows in quiescent sources, and that FUor outflows have a higher ratio outflow mass with respect to the envelope than the quiescent sample, indicating that the eruptive young stars have lower star-forming efficiencies. Finally, we found that the outflow forces in FUors are similar to those of quiescent young stellar objects, indicating that their accretion histories are similar or that the FUor outflows have lower velocities.
description: Accepted for publication in ApJ. 29 pages, 8 tables, 10 figures, 2 figuresets
Application of Catalytic Phosphorus Doping to a-Si/c-Si Heterojunction Solar Cells
Creators: name: Tsuzaki, S.
name: Ohdaira, K.
name: Oikawa, T.
name: Koyama, K.
name: Matsumura, H.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 969-972
description: Phosphorus (P) catalytic doping (Cat-doping), realized by exposing c-Si surface to radicals generated by catalytically cracking PH3 molecules, is applied to amorphous silicon (a-Si)/crystalline silicon (c-Si) heterojunction solar cells. A thin n-type layer created by the P Cat-doping improves surface recombination velocity (SRV), caused by its field effect. A heterojunction solar cell receiving P Cat-doping demonstrates better open-circuit voltage (Voc) than a heterojunction cell with no P Cat-doping. This indicates the applicability of Cat-doping to a- Si/c-Si heterojunction solar cells, resulting from the advantage of the Cat-doping which can be performed at less than 200 °C.
SOFIA and ALMA Investigate Magnetic Fields and Gas Structures in Massive Star Formation: The Case of the Masquerading Monster in BYF 73
Creators: name: Barnes, Peter J.
name: Ryder, Stuart D.
name: Novak, Giles
name: Crutcher, Richard M.
name: Fissel, Laura M.
name: Pitts, Rebecca L.
name: Schap, William J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present SOFIA+ALMA continuum and spectral-line polarisation data on the massive molecular cloud BYF 73, revealing important details about the magnetic field morphology, gas structures, and energetics in this unusual massive star formation laboratory. The 154$μ$m HAWC+ polarisation map finds a highly organised magnetic field in the densest, inner 0.55$\times$0.40 pc portion of the cloud, compared to an unremarkable morphology in the cloud's outer layers. The 3mm continuum ALMA polarisation data reveal several more structures in the inner domain, including a pc-long, $\sim$500 M$_{\odot}$ "Streamer" around the central massive protostellar object MIR 2, with magnetic fields mostly parallel to the east-west Streamer but oriented north-south across MIR 2. The magnetic field orientation changes from mostly parallel to the column density structures to mostly perpendicular, at thresholds $N_{\rm crit}$ = 6.6$\times$10$^{26}$ m$^{-2}$, $n_{\rm crit}$ = 2.5$\times$10$^{11}$ m$^{-3}$, and $B_{\rm crit}$ = 42$\pm$7 nT. ALMA also mapped Goldreich-Kylafis polarisation in $^{12}$CO across the cloud, which traces in both total intensity and polarised flux, a powerful bipolar outflow from MIR 2 that interacts strongly with the Streamer. The magnetic field is also strongly aligned along the outflow direction; energetically, it may dominate the outflow near MIR 2, comprising rare evidence for a magnetocentrifugal origin to such outflows. A portion of the Streamer may be in Keplerian rotation around MIR 2, implying a gravitating mass 1350$\pm$50 M$_{\odot}$ for the protostar+disk+envelope; alternatively, these kinematics can be explained by gas in free fall towards a 950$\pm$35 M$_{\odot}$ object. The high accretion rate onto MIR 2 apparently occurs through the Streamer/disk, and could account for $\sim$33% of MIR 2's total luminosity via gravitational energy release.
description: 33 pages, 32 figures, accepted by ApJ. Line-Integral Convolution (LIC) images and movie versions of Figures 3b, 7, and 29 are available at https://gemelli.spacescience.org/~pbarnes/research/champ/papers/
Analysis of Paste Compatibility and Screen Design for Dual Print
Creators: name: Lin, K.-C.
name: Su, S.J.
name: Huang, P.
name: Cheng, L.
Publisher: name: WIP
Year: 2014
Subjects: WAFER-BASED SILICON SOLAR CELLS AND MATERIALS TECHNOLOGY
Silicon Solar Cell Improvements

description: 29th European Photovoltaic Solar Energy Conference and Exhibition; 918-919
description: For dual printing, lower paste weight and higher Voc is observed if contact-less paste is used on busbar. In this work, additional resistance is also observed on interface if paste is different between finger and busbar which lead to lower efficiency. Paste compatibility is evaluated to minimize the resistance induced by heterogeneous paste interface. Screen design with higher overlap area on busbar and finger is the other way which could decrease cell efficiency loss from 0.14% to 0.06%.