cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integrated micro-optics for efficiency enhancement of micro-light-emitting devices
Creators: name: Bezshlyakh, Daria
name: Gülink, Jan
name: Langfahl-Klabes, Jannick
name: Rojas-Hurtado, Carol
name: Brand, Uwe
name: Kroker, Stefanie
name: Wasisto, Hutomo Suryo
name: Waag, Andreas
Publisher: name: Zenodo
Year: 2018
Subjects: microoptics
microlens
LED
polymer

description: Over the past few decades, light-emitting diodes (LEDs) have evolved from conventional light sources to powerful devices that are highly demanded in industry and science. The trend to system miniaturization is moving the semiconductor technology toward creation of micro- and nanostructured light sources (i.e., micro- and nano-LEDs) [1]. Advances in fabrication and processing industry enable creation of precisely arranged and controlled micro- and nano-LED arrays, which can be used as structured light sources with high spatial and temporal resolution [2]. However, workability of micro-LEDs in a number of applications is limited by a wide emission pattern of light sources. LED angular intensity distribution is described by the Lambertian curve (Fig. 1(a)), which means that light is emitted broadly in forward direction, causing losses in power and spatial resolutions. In order to enhance light extraction and outcoupling efficiency as well as correct the emission pattern, high-precision micro-optical elements can be used. Depending on the structure configuration and positioning of the components, different types of light beams can be obtained (Fig. 1(b)), which paves the way to realize ultra-compact multifunctional optoelectronic devices. Thus, in this work, precisely positioned micro-lens arrays (MLAs) were designed and manufactured using a thermal reflow method to be combined with micro-LED arrays for improving their light outcoupling efficiency and being targeted to be used in biological applications. The MLA shapes, geometries, and optical properties were characterized using several metrological assessment methods (Fig. 2). Besides, the study of the emission patterns of micro-LEDs with integrated microlenses is currently being conducted and its results will be analyzed and presented.

References:

	S. Rajbhandari, et al., A review of gallium nitride LEDs for multi-gigabit-per-second visible light data communications, Semiconductor Science and Technology, 32, 023001 (2017).
	F. Olivier, et al., Influence of size-reduction on the performances of GaN-based micro-LEDs for display application, Journal of Luminescence, 191, 112-116 (2017).
	L. Chaudet, Micro-optics for opto-genetic neuro-simulation with micro-LED arrays, Ph.D. Dissertation, Dept. of Phys., Imperial College of London (2014).
Webpage Load Speed: ASP.NET vs. PHP
Creators: name: Mirzoev, Dr. Timur
name: Sack, Lawton
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: As data transmission speeds over the Internet continue to increase, it is necessary to research and identify technologies that can take advantage of the increased speeds by enhancing the loading speed of webpages. One area of consideration is found in the type of framework that is utilized for a website. There are numerous frameworks that can be chosen from to be used to support a website, each with their distinctive advantages. There are many different opinions that have been tested on which framework should be used to fully realize the optimization of page load speed. This manuscript examines and implements testing methods for two popular frameworks, Active Server Pages .net and PHP, to make a final determination of which framework is most beneficial for webpage load speeds.
Galaxy And Mass Assembly (GAMA): ugrizYJHK Sérsic luminosity functions and the cosmic spectral energy distribution by Hubble type
Creators: name: Kelvin, Lee S.
name: Driver, Simon P.
name: Robotham, Aaron S. G.
name: Graham, Alister W.
name: Phillipps, Steven
name: Agius, Nicola K.
name: Alpaslan, Mehmet
name: Baldry, Ivan
name: Bamford, Steven P.
name: Bland-Hawthorn, Joss
name: Brough, Sarah
name: Brown, Michael J. I.
name: Colless, Matthew
name: Conselice, Christopher J.
name: Hopkins, Andrew M.
name: Liske, Jochen
name: Loveday, Jon
name: Norberg, Peder
name: Pimbblet, Kevin A.
name: Popescu, Cristina C.
name: Prescott, Matthew
name: Taylor, Edward N.
name: Tuffs, Richard J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the morphological classification of 3727 galaxies from the Galaxy and Mass Assembly survey with M_r < -17.4 mag and in the redshift range 0.025 < z < 0.06 (2.1 x 10^5 Mpc^3 ) into E, S0-Sa, SB0-SBa, Sab-Scd, SBab-SBcd, Sd-Irr and little blue spheroid classes. Approximately 70% of galaxies in our sample are disk dominated systems, with the remaining ~30% spheroid dominated. We establish the robustness of our classifications, and use them to derive morphological-type luminosity functions and luminosity densities in the ugrizYJHK passbands, improving on prior studies that split by global colour or light profile shape alone. We find that the total galaxy luminosity function is best described by a double-Schechter function while the constituent morphological-type luminosity functions are well described by a single-Schechter function. These data are also used to derive the star-formation rate densities for each Hubble class, and the attenuated and unattenuated (corrected for dust) cosmic spectral energy distributions, i.e., the instantaneous energy production budget. While the observed optical/near-IR energy budget is dominated 58:42 by galaxies with a significant spheroidal component, the actual energy production rate is reversed, i.e., the combined disk dominated populations generate ~1.3x as much energy as the spheroid dominated populations. On the grandest scale, this implies that chemical evolution in the local Universe is currently confined to mid-type spiral classes like our Milky Way.
description: 27 pages, 22 figures, accepted for publication in MNRAS (see MNRAS version for high-quality figures)
Sub-Kelvin optical thermometry of an electron reservoir coupled to a self-assembled InGaAs quantum dot
Creators: name: Seilmeier, F.
name: Hauck, M.
name: Schubert, E.
name: Schinner, G. J.
name: Beavan, S. E.
name: Högele, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show how resonant laser spectroscopy of the trion optical transitions in a self-assembled quantum dot can be used to determine the temperature of a nearby electron reservoir. At finite magnetic field the spin-state occupation of the Zeeman-split quantum dot electron ground states is governed by thermalization with the electron reservoir via co-tunneling. With resonant spectroscopy of the corresponding excited trion states we map out the spin occupation as a function of magnetic field to establish optical thermometry for the electron reservoir. We demonstrate the implementation of the technique in the sub-Kelvin temperature range where it is most sensitive, and where the electron temperature is not necessarily given by the cryostat base temperature.
description: 5 pages, 4 figures
InGaN/GaN nanoLED arrays for bioimaging applications
Creators: name: Gülink, Jan
name: Bornemann, Steffen
name: Spende, Hendrik
name: Mariana, Shinta
name: Fatahilah, Muhammad Fahlesa
name: Auf der Maur, Matthias
name: Di Carlo, Aldo
name: Prades, Joan Daniel
name: Wasisto, Hutomo Suryo
name: Waag, Andreas
Publisher: name: Zenodo
Year: 2018
Subjects: LED array
microLED
nanoLED
GaN
microscopy
nanoscopy

description: In recent years, gallium nitride-based light-emitting diodes (GaN LEDs) have been continuously developed and employed in not only solid state lighting but also high-brightness display and optical sensor applications. By integrating them with CMOS control electronics, matrix-addressed and individually controlled blue GaN microLED arrays could be realized with a display luminance of 106 cd/m2 (12 W/cm2), which is a factor of 103 higher than normal commercial displays [1]. Although those optoelectronic devices exhibited promising results and could subsequently be used for illumination sources and manipulation tools in the life sciences, their spatial resolution was still low, which resulted from the LED dimensions with pixel and pitch sizes of 80 × 80 μm2 and 100 μm, respectively. For biologists, however, the imaging at sub-micron resolution is a prerequisite to gain insights of live-cell dynamics and nanostructures at the single-molecule level (e.g., for intracellular fluorescent proteins and activity-dependent plasticity of axon morphology). Therefore, sub-micron or even super-resolution microscopy using compact light sources is urgently needed and would lead to a huge impact on life science research in general. [2].

In this work, InGaN/GaN nanoLED arrays had been designed and fabricated to be used as a nanoillumination source into live-cell imaging inside an on-chip microscope. As the LED pixel dimensions had been scaled down to the sub-micrometer range, the relationship between the nanoscale size and performance of a LED has been investigated, involving extensive optical and electrical simulations. For quick but reliable opto-electrical measurements of nanoLEDs, nanoneedle probing tips inside a scanning electron microscope were utilized (Fig. 1(a)). Hence, I-V and electroluminescence characteristics of small light sources with dimensions of < 1 µm could be extracted (Figs. 1(b), 1(c)). Moreover, the very challenging 3D processing of these high-aspect-ratio top-down nanoLED arrays had been tackled to create nanoLED-based optoelectronic nanodevices. Technological details will also be presented.

References:

	J. Herrnsdorf et al., Active-matrix GaN micro light-emitting diode display with unprecedented brightness. IEEE Transactions on Electron Devices, 62(6), 1918-1925 (2015).
	F. Balzarotti et al., Nanometer resolution imaging and tracking of fluorescent molecules with minimal photon fluxes. Science, 355(6325), 606-612 (2017).
Data-driven multi-fidelity surrogate models for Rocket Engines injector design
Creators: name:  JOSE FELIX ZAPATA USANDIVARAS
name:   ANNAFEDERICA URBANO
name:   MICHAEL BAUERHEIM
name:   BENEDICTE CUENOT
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: ROCKET ENGINES INJECTORS
SURROGATE MODELS
DEEP LEARNING
TRANSFER LEARNING
CFD

description: The present study lays the focus on data-driven surrogate models for liquid rocket engine injectors. A database of ~ 100 low-fidelity LES simulations of shear-coaxial injectors, operating with a gaseous oxygen-methane mixture, has been created with the AVBP solver. The design of experiments explores three variables, the chamber radius, the recess-length of the oxidizer post and the mixture ratio. Subsequently, Convolutional Neural Networks (CNNs) were trained upon this dataset to provide reasonable approximations of the temporal-averaged 2D flow-field. Although the neural networks are efficient non-linear data emulators, in purely data-driven approaches their quality is directly impacted by the precision of the data they are trained upon. Hence, in the current work, we develop multi-fidelity surrogate models by leveraging transfer learning methods. For such, a high-fidelity dataset has been created, albeit small, to a much greater cost per sample. The amalgamation of low and high-fidelity data during the training process enables the improvement of the surrogates models fidelity without excessive additional cost.
title: Report on digital competences, learning outcomes and best practices in teaching and learning
Creators: name: Breuer, Birgit
Publisher: name: University of Bologna
Year: 2023

description: The report presents the results of the international online survey on Digital competences, learning outcomes and best practices in teaching and learning conducted as part of the ENCODE project (IO1) in July 2021 under the responsibility of the University of Würzburg. This version of the report (1.0) takes into account online survey respondents up to September 2021. The survey has been conducted by distributing a questionnaire among teachers and students of digital workshops in the field of Ancient Written Cultures and aims at discussing examples of good learning and training practices in order to provide ideas for future training modules and activities, which will be produced within the project.
ORCID para Investigadores
Creators: name: Espósito, Ezequiel
Publisher: name: Zenodo
Year: 2023
Subjects: ORCID
investigación
investigadores
ciencia abierta
PIDs
identificadores persistentes
perfil del investigador
visibilidad
produccion cientifica

description: ORCID es un identificador único, persistente y gratuito para los investigadores que ayuda a reducir las consecuencias negativas de las variantes de firma, a la vez que facilita la desambiguación entre autores con nombres similares. Permite una correcta atribución de publicaciones en múltiples fuentes al unificarlas en un mismo perfil y facilitar su difusión. ORCID asigna a cada investigador un código único de 16 dígitos que permite identificarlo en bases de datos bibliográficas, índices, sitios de contenido científico, redes sociales, etc. Además, funciona como un perfil personal online con una hoja de vida del investigador con sus publicaciones, revisiones por pares, becas, financiamientos, membresías, estudios, biografía, lugares de trabajo, premios, etc. Esta información puede ser ingresada forma manual o automatizada gracias a la interoperabilidad con otras plataformas como Scopus, repositorios, sitios de revistas, entre otros.
Herschel/PACS spectroscopy of trace gases of the stratosphere of Titan
Creators: name: Rengel, Miriam
name: Sagawa, Hideo
name: Hartogh, Paul
name: Lellouch, Emmanuel
name: Feuchtgruber, Helmut
name: Moreno, Raphael
name: Jarchow, Christopher
name: Courtin, Regis
name: Cernicharo, Jose
name: Lara, Luisa
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aims: We investigate the composition of Titan's stratosphere from new medium-resolution far-infrared observations performed with the full range of Herschel's Photodetector Array Camera and Spectrometer (PACS) (51-220 $μ$m at a resolution $λ$/$Δλ$ ranging from 950 to 5500 depending on wavelength and grating order). Methods: Using PACS, we obtained the spectral emission of several features of the Titan's stratosphere. We used a line-by-line radiative transfer code and the least-squares fitting technique to infer the abundances of the trace constituents. Results: Numerous spectral features attributable to CH$_4$, CO, HCN, and H$_2$O are present. From the flux density spectrum measured and by a detailed comparison with synthetic spectra, we constrain the stratospheric abundance of CH4, which is assumed to be constant with altitude, to be 1.29 $\pm$ 0.03%. Similarly, we constrain the abundance of CO to be 50 $\pm$ 2 ppm, and the HCN vertical distribution consistent with an increase from 40 ppb at $\sim$100 km to 4 ppm at $\sim$200 km, which is an altitude region where the HCN signatures are sensitive. Measurements of three H$_2$O rotational lines confirm the H$_2$O distribution profile recently obtained with Herschel. Furthermore, we determine the isotopic ratios $^{12}$C/$^{13}$C in CO and HCN to be 124 $\pm$ 58, and 66 $\pm$ 35, respectively. Comparisons between our results and the values derived with other instruments show that our results are consistent with the vertical distributions and isotopic ratios in previous studies, except for the HCN distribution obtained with Cassini/CIRS, which does not agree with the PACS lines at the 1-sigma confidence interval.
description: 6 pages, 7 figures. Appeared for publication in A&A Volume 561, January 201
The surface and inner temperatures of magnetars
Creators: name: Gao, Z. F.
name: Wang, N.
name: Peng, Q. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Assuming that the timescale of the magnetic field decay is approximately equal to that of the stellar cooling via neutrino emission, we obtain a one-to-one relationship between the effective surface thermal temperature and the inner temperature. The ratio of the effective neutrino luminosity to the effective X-ray luminosity decreases with decaying magnetic field.
description: 3 Pages, 3 Figures, Published in IAU Symposium, 2013, V.291 p.386-388. 2013IAU Symposium
Additional file 1 of CRAFT (Cerclage after full dilatation caesarean section): protocol of a mixed methods study investigating the role of previous in-labour caesarean section in preterm birth risk
Creators: name: Carlisle, Naomi
name: Glazewska-Hallin, Agnieszka
name: Story, Lisa
name: Carter, Jenny
name: Seed, Paul T.
name: Suff, Natalie
name: Giblin, Lucie
name: Hutter, Jana
name: Napolitano, Raffaele
name: Rutherford, Mary
name: Alexander, Daniel C.
name: Simpson, Nigel
name: Banerjee, Amrita
name: David, Anna L.
name: Shennan, Andrew H.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 1. Caesarean Scar and Niche Measurement Protocol for the CRAFT study.
Structural and opto-electrical investigation of InGaN/GaN nanoLED arrays
Creators: name: Gülink, Jan
name: Spende, Hendrik
name: Wasisto, Hutomo Suryo
name: Waag, Andreas
Publisher: name: Zenodo
Year: 2018
Subjects: GaN
LED
nanoLED
nanopillar
nanowire

description: In recent years, gallium nitride-based LEDs have been continuously developed and employed in not only solid state lighting but also for bio-imaging and optical sensor applications. By integrating them with CMOS control electronics, matrix-addressed GaN microLED arrays could be utilized as a new microscope technique in life sciences. Although those optoelectronic devices exhibit promising results, their spatial resolution is still low, which results from the LED dimensions with pixel and pitch sizes in the range of several tens of micrometers. In this work, InGaN/GaN nanoLED arrays were designed and fabricated to be used as a nanoillumination source inside an on-chip microscope. As the LED pixel dimensions are scaled down to the sub-micron range, the relationship between the nanoscale size and performance of a LED is of interest. Opto-electrical measurements of nanoLEDs were conducted with nanoneedle probing tips inside an SEM. Hence, I-V and electroluminescence characteristics of light sources with dimensions of smaller than one micrometer could be extracted. Technological details of the challenging processing of these structures will also be presented.
Additional file 2 of CRAFT (Cerclage after full dilatation caesarean section): protocol of a mixed methods study investigating the role of previous in-labour caesarean section in preterm birth risk
Creators: name: Carlisle, Naomi
name: Glazewska-Hallin, Agnieszka
name: Story, Lisa
name: Carter, Jenny
name: Seed, Paul T.
name: Suff, Natalie
name: Giblin, Lucie
name: Hutter, Jana
name: Napolitano, Raffaele
name: Rutherford, Mary
name: Alexander, Daniel C.
name: Simpson, Nigel
name: Banerjee, Amrita
name: David, Anna L.
name: Shennan, Andrew H.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 2.
An integral inequality for constant scalar curvature metrics on Kähler manifolds
Creators: name: Li, Ping
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32Q15, 53C55

description: We present in this note a lower bound for the Calabi functional in a given Kähler class. This yields an integral inequality for constant scalar curvature metrics, which can be viewed as a refined version of Yau's Chern number inequality.
description: 10 pages
Discovering Relations in Knowledge Graphs Using the Sampo Model
Creators: name: Rantala, Heikki
Publisher: name: Zenodo
Year: 2023

description: Knowledge graphs represent both explicit and implicit relations between things like persons and places. While the number of potential relations is essentially unlimited, most of such connections are fundamentally uninteresting. For example, two things might both be instances of owl:Thing class, which is a connection, but not an interesting one. Potentially interesting relations can be predefined, and then mined from the knowledge graph using SPARQL CONSTRUCT queries. These relations can be represented as instances and explored using faceted search. While this makes it possible to search connections between two individuals, it also makes it possible to find relations between larger groups such as connections between persons of a certain profession and places within a certain country.
Lift-off of GaN LEDs with ultrashort laser pulses
Creators: name: Bornemann, Steffen
name: Yulianto, Nursidik
name: Waag, Andreas
name: Wasisto, Hutomo Suryo
Publisher: name: Zenodo
Year: 2018
Subjects: laser lift-off
GaN LED
LED
femtosecond laser

description: Due to their high efficiency and compact design, GaN-based LEDs are nowadays the light source of choice for many applications. Sapphire is usually taken as a low-cost substrate for epitaxial growth of the InGaN/GaN heterostructure. However, it provides poor electrical and thermal conductivity, limiting its practicability for commercial highpower LEDs as well as for structured light sources. Therefore, a transfer of thin LED structures to more suitable substrates, e.g. rigid silicon or flexible polyimide, is applied. The detachment from sapphire is normally realized with a UV excimer laser, leading to linear absorption in the first layers of GaN.

In this project, we present the successful implementation of a liftoff process based on a versatile femtosecond laser system operating at a wavelength of 520 nm. The corresponding photon energy is too low for direct absorption, but non-linear processes  during the highenergy pulses enable separation of the LED from the original substrate. Luminescence experiments prove the functionality of the lifted chip, whereas SEM measurements reveal local laser induced damage on the surface. Possible mechanisms for these phenomena are discussed.
Discovery of a Small Central Disk of CO and HI in the Merger Remnant NGC 34
Creators: name: Fernández, Ximena
name: Petric, A. O.
name: Schweizer, Francois
name: van Gorkom, J. H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present CO(1-0) and HI(21-cm) observations of the central region of the wet merger remnant NGC 34. The Combined Array for Research in Millimeter-wave Astronomy (CARMA) observations detect a regularly rotating disk in CO with a diameter of 2.1 kpc and a total molecular hydrogen mass of ($2.1 \pm 0.2) \times10^9~M_\odot$. The rotation curve of this gas disk rises steeply, reaching maximum velocities at 1" (410 pc) from the center. Interestingly, HI observations done with the Karl G. Jansky Very Large Array show that the absorption against the central continuum has the exact same velocity range as the CO in emission. This strongly suggests that the absorbing HI also lies within 1" from the center, is mixed in and corotates with the molecular gas. A comparison of HI absorption profiles taken at different resolutions (5"-45") shows that the spectra at lower resolutions are less deep at the systemic velocity. This provides evidence for HI emission in the larger beams, covering the region from 1 kpc to 9 kpc from the center. The central rapidly rotating disk was likely formed either during the merger or from fall-back material. Lastly, the radio continuum flux of the central source at mm wavelengths ($5.4\pm1.8$ mJy) is significantly higher than expected from an extrapolation of the synchrotron spectrum, indicating the contribution of thermal free-free emission from the central starburst.
description: Accepted for publication in AJ
Towards toolless manufacturing of aerospace CFRP components via thermoplastic AFP
Creators: name:  LARS BRANDT
name:   DOMINIK DEDEN
name:   FABIAN SCHUHLER
name:   MICHAEL VISTEIN
name:   PHILIPP GANSWURGER
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: AFP
CFRP
THERMOPLASTICS
MANUFACTURING
DUAL ROBOT

description: Modern commercial aviation needs to decarbonize at high rates to support climate action. One aspect is the consistent use of lightweight materials such as carbon fiber reinforced plastics (CFRP), that requires novel manufacturing processes. This paper expands on the development of dual-robot thermoplastic Automated Fiber Placement, that enables toolless production of CFRP structures. A hardware and software setup are developed to conduct material tests and evaluate the achievable part quality using the process. It is shown that the process is feasible to manufacture quality on par with conventional, in-situ AFP.
Montaigne's essay on drunkenness (Classics of the Alcohol Literature) [CAAAL 3812].
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1946

description: Abstract of the article on a McBee punchcard from the Classified Abstract Archive of the Alcohol Literature (CAAAL), a collection of approximately 20,000 abstracts prepared by Center staff from 1939 through 1977.
First Principles Study of the Magnetic Properties of LaOMnAs
Creators: name: Dong, Shuai
name: Li, Wei
name: Huang, Xin
name: Dagotto, Elbio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experiments reported giant magnetoresistance at room temperature in LaOMnAs. Here a density functional theory calculation is performed to investigate magnetic properties of LaOMnAs. The ground state is found to be the G-type antiferromagnetic order within the $ab$ plane but coupled ferromagnetically between planes, in agreement with recent neutron investigations. The electronic band structures suggest an insulating state which is driven by the particular G-type magnetic order, while a metallic state accompanies the ferromagnetic order. This relation between magnetism and conductance may be helpful to qualitatively understand the giant magnetoresistance effects.
description: 3 pages, 3 figures. Proceeding of MMM conference, accepted
Additional file 1 of What is the size of Australia’s sexual minority population?
Creators: name: Wilson, Tom
name: Jeromey Temple
name: Lyons, Anthony
name: Shalley, Fiona
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Figure S1: Sexual identity questions in HILDA and the GSS. Table S1: Relative standard errors for sexual identity percentages in Table 1. Table S2: Relative standard errors for the sexual minority percentages in Table 2.
ReFEx: Reusability Flight Experiment - Trajectory Design
Creators: name:  LEONID BUSSLER
name:   JOSE LUIS REDONDO GUTIERREZ
name:   PETER RICKMERS
name:   SVEN STAPPERT
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: REUSABILITY
HYPERSONICS
REENTRY TRAJECTORY

description: The DLR project ReFEx aims at flying a trajectory representative for aerodynamically controlled stages. Further objectives are demonstrating maneuverability capabilities and ensuring safety. The ReFEx trajectory is oriented towards flight paths of operational and conceptual winged reentry vehicles represented in a Mach-Altitude map. Reentry trajectories are designed based on iterative solution of three degrees of freedom equations of motion. To analyze the mission performance under perturbed conditions, they are integrated in a six degrees of freedom, closed loop simulation environment. After the experimental phase and prior to touchdown a reduction of impact energy through a flare maneuver is foreseen.
Leptonic CP Violation and Leptogenesis
Creators: name: Petcov, S. T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The phenomenology of 3-neutrino mixing, the current status of our knowledge about the 3-neutrino mixing parameters, including the absolute neutrino mass scale, and of the Dirac and Majorana CP violation in the lepton sector, are reviewed. The problems of CP violation in neutrino oscillations and of determining the nature - Dirac or Majorana - of massive neutrinos, are discussed. The seesaw mechanism of neutrino mass generation and the related leptogenesis scenario of generation of the baryon asymmetry of the Universe, are considered. The results showing that the CP violation necessary for the generation of the baryon asymmetry of the Universe in leptogenesis can be due exclusively to the Dirac and/or Majorana CP-violating phase(s) in the neutrino mixing matrix $U$, are briefly reviewed.
description: 23 pages, 5 figures; Proceedings of the Conference in Honor of the 90th Birthday of Freeman Dyson, Nanyang Technological University, Singapore, 26-29 August 2013 (Eds. K.K. Phua et al., World Scientific, 2014), p. 179; typos in the published version corrected
Black soldier fly larvae (Hermetia Illucens) as a sustainable and concentrated source of bioavailable lutein for feed
Creators: name: Morand-Laffargue, L.
name: Creton, B.
name: Halimi, C.
name: Sabatier, D.
name: Desmarchelier, C.
name: Borel, P.
Publisher: name: Brill Online
Year: 2023
Subjects: classificationCode: 309999
subject: Other agricultural, veterinary and food sciences not elsewhere classified

description: Black soldier fly larvae (BSFL) are increasingly used to recycle and convert food waste into feed. We attempted to assess whether they can bioaccumulate lutein, a xanthophyll used as a food coloring, and whether it is then sufficiently bioavailable for an economically relevant incorporation of BSFL into feed. Vegetables and larvae lutein concentrations were measured by HPLC. Lutein bioaccessibility was estimated by in vitro digestion and lutein absorption efficiency by Caco-2 cells. BSFL were at least as rich, and sometimes richer (P < 0.05), in lutein than the vegetables they were reared on. For example, the larvae reared on kale contained 160.2 ± 3.4 mg/kg vs 23.0 ± 3.5 mg/kg of lutein, on a fresh weight basis, for the kale substrate. For the same substrate, lutein bioaccessibility was not statistically different between BSFL and the substrate (respectively 14.8 ± 1.2% and 16.2 ± 2.8%; P = 0.7). Finally, by considering the lutein concentration in BSFL enriched in lutein and in lutein-rich substrates, as well as the bioaccessibility and intestinal absorption efficiency of lutein contained in these matrices, it was estimated that consumption of lutein-enriched larvae would lead to a theoretical amount of absorbed lutein about 2 to 13 times higher compared to that following the consumption of an equal quantity of lutein-rich vegetables. Thus, BSFL can be used as a sustainable and concentrated source of bioavailable lutein for feed and, indirectly, for food.
Additional file 2 of Teaching pediatric otoscopy skills to the medical student in the clinical setting: preceptor perspectives and practice
Creators: name: Paul, Caroline R.
name: Joyce, Alanna D. Higgins
name: Dallaghan, Gary L. Beck
name: Keeley, Meg G.
name: Lehmann, Corinne
name: Schmidt, Suzanne M.
name: Simonsen, Kari A.
name: Christy, Cynthia
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Science Policy

description: Additional file 2. Preceptor Survey.
Stellar populations in central cluster galaxies: the influence of cooling flows
Creators: name: Loubser, S. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present detailed, high spatial and spectral resolution, long-slit observations of four central cluster galaxies (Abell 0085, 0133, 0644 and Ophiuchus) recently obtained on the Southern African Large Telescope (SALT). Our sample consists of central cluster galaxies (CCGs) with previously-observed Hα-filaments, and have existing data from the X-ray to radio wavelength regimes available. Here, we present the detailed optical data over a broad wavelength range to probe the spatially-resolved kinematics and stellar populations of the stars. We use the Pegase.HR model with the ELODIE v3.1 stellar library to determine the star formation histories of the galaxies using full spectrum fitting. We perform single stellar population (SSP) as well as composite stellar population (CSP) fits to account for more complex star formation histories. Monte-Carlo simulations and χ2-maps are used to check the reliability of the solutions. This, combined with the other multiwavelength data, will form a complete view of the different phases (hot and cold gas and stars) and how they interact in the processes of star formation and feedback detected in central galaxies in cooling flow clusters, as well as the influence of the host cluster. We find small, young stellar components in at least three of the four galaxies, even though two of the three host clusters have zero spectrally-derived mass deposition rates from X-ray observations.
description: Based on observations made with the Southern African Large Telescope (SALT). Accepted for publication in MNRAS
Tri-Dirac Surface Modes in Topological Superconductors
Creators: name: Fang, Chen
name: Bernevig, B. Andrei
name: Gilbert, Matthew J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose a new type of topological surface modes having cubic dispersion in three-dimensional topological superconductors. Lower order dispersions are prohibited by the threefold rotational symmetry and time-reversal symmetry. Cooper pairing in the bulk changes sign under improper rotations, akin to$^{3}$He-B. The surface manifestations are a divergent surface density of states at the Fermi level and isospins that rotate three times as they circle the origin in momentum space. We propose that Heusler alloys with band inversion are candidate materials to harbor the novel topological superconductivity.
description: Five-page main text plus five-page supplementary materials; three figures
Wind Tunnel Characterization of a Delta-Wing UAV for Model-Based Navigation
Creators: name:  LONGOBARDI PASQUALE
name:   SKALOUD JAN
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: UAV
WIND TUNNEL
AERODYNAMICS
AUTONOMOUS
MODEL-BASED NAVIGATION NAVIGATION

description: This paper presents an experimental procedure for aerodynamic characterization of a delta-wing UAV for model-based navigation applications. We report the design of experiments, aimed to maximize aerodynamic coefficients observability while meeting time constraints requirements, as well as the significance of secondary aerodynamic influences. A functional model, simple yet accurate, is derived from the experiments. We evaluate it empirically in-flight with an offiine-implemented navigation solution during GNSSsignal outages, using data exclusively collected from low-cost sensors embedded in a commercially available autopilot. Results showed that the model-based navigation solution produced a significantly smaller positioning error compared to traditional navigation approaches during GNSS outage.
Additional file 1 of Teaching pediatric otoscopy skills to the medical student in the clinical setting: preceptor perspectives and practice
Creators: name: Paul, Caroline R.
name: Joyce, Alanna D. Higgins
name: Dallaghan, Gary L. Beck
name: Keeley, Meg G.
name: Lehmann, Corinne
name: Schmidt, Suzanne M.
name: Simonsen, Kari A.
name: Christy, Cynthia
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Science Policy

description: Additional file 1. 2018 COMSEP Annual Survey.
Advancements of a VLEO satellite system study utilizing an RF Helicon-based Plasma Thruster
Creators: name:  G. HERDRICH
name:   P. MAIER
name:   K. PAPAVRAMIDIS
name:   J. SKALDEN
name:   S. KLINKNER
name:   S. FASOULAS
name:   A. WIEGAND
name:   M. WALTHER
name:   L. WALPOT
name:   E.B. BORRAS
name:   B. DUESMANN
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: VLEO
ABEP
RF-HELICON PLASMA THRUSTER
PLATFORM DESIGN

description: Very low earth orbits in an altitude range of 150-250km are currently of high interest for earth observation and telecommunication purposes to increase resolution and reduce latency. To compensate the residual atmosphere\'s drag, which would deorbit the spacecraft within weeks or days, the Institute of Space Systems (IRS) is developing an atmosphere-breathing electric propulsion (ABEF) system. Within the EU-funded DISCOVERER project, an electrodeless thruster based on helicon wave mode and a specular reflecting intake were developed and the thruster successfully tested. The TRL of these systems is currently being raised in the ESA RAM-CLEF project. Furthermore, the satellite platform itself is being investigated in a multi-disciplinary optimization approach, deriving requirements and constraints on the subsystems. This study presents early results and current progress of these activities.
Cutoff in the hard X-ray spectra of the ultraluminous X-ray sources HoIX X-1 and M82 X-1
Creators: name: Sazonov, Sergey
name: Lutovinov, Alexander
name: Krivonos, Roman
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using data from the XMM-Newton and INTEGRAL observatories, we have detected a cutoff at energies above 10 keV in the X-ray spectra of the ultraluminous X-ray sources HoIX X-1 and M82 X-1. The spectra obtained can be described by a model of Comptonization of radiation in a gas cloud of moderate temperature (kT~2-3 keV) and high optical depth (tau~15-25). Such conditions can be fulfilled during supercritical accretion of matter onto a stellar-mass black hole accompanied by a strong gas outflow. The results of this work confirm the existence of a spectral state specific to ultraluminous X-ray sources, which is unlike any of the known spectral states in normal X-ray binaries.
description: 8 pages, 5 figures, accepted for publication in Astronomy Letters
Current-induced magnetization dynamics in two magnetic insulators separated by a normal metal
Creators: name: Skarsvåg, Hans
name: Bauer, Gerrit E. W.
name: Brataas, Arne
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the dynamics of spin valves consisting of two layers of magnetic insulators separated by a normal metal in the macrospin model. A current through the spacer generates a spin Hall current that can actuate the magnetization via the spin-transfer torque. We derive expressions for the effective Gilbert damping and the critical currents for the onset of magnetization dynamics including the effects of spin pumping that can be tested by ferromagnetic resonance experiments. The current generates an amplitude asymmetry between the in-phase and out-of-phase modes. We briefly discuss superlattices of metals and magnetic insulators.
description: 9 pages, 5 figures
Continuous loading of an atom beam into an optical lattice
Creators: name: Ivanov, Vladyslav V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: I propose a method of deceleration and continuous loading of an atom beam into a far-off-resonance optical lattice. The loading of moving atoms into a conservative far-off-resonance potential requires the removal of the atom's excess kinetic energy. Here this is achieved by the Sisyphus cooling method, where a differential lattice-induced ac Stark shift is utilized. The proposed method is described for the case of ytterbium atoms. Numerical simulations demonstrate the possibility of reaching cold and dense samples in a continuous manner on the example of ytterbium atoms.
description: 7 pages, 6 figures
Additional file 3 of Spatial modelling improves genetic evaluation in smallholder breeding programs
Creators: name: Selle, Maria L.
name: Ingelin Steinsland
name: Powell, Owen
name: Hickey, John M.
name: Gorjanc, Gregor
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3. Additional tables.
Age and mass segregation of multiple stellar populations in galactic nuclei and their observational signatures
Creators: name: Perets, Hagai B.
name: Mastrobuono-Battisti, Alessandra
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Nuclear stellar cluster (NSCs) are known to exist around massive black holes (MBHs) in galactic nuclei. They are thought to have formed through in-situ star formation following gas inflow to the nucleus of the galaxy and/or through the infall of multiple stellar clusters. Here we study the latter, and explore the composite structure of the NSC, and its relation to the various stellar populations originating from its progenitor infalling clusters. We use N-body simulations of clusters infall, and show that this scenario may produce observational signatures in the form of age segregation: the distribution of the stellar properties (e.g. stellar age and/or metallicity) in the NSCs reflect the infall history of the different clusters. The stellar populations of clusters infalling at different times (dynamical ages), are differentially segregated in the NSC, and are not fully mixed even after few Gyrs of evolution. Moreover, the radial properties of stellar populations in the progenitor cluster are mapped to their radial distribution in the final NSC, potentially leading to efficient mass segregation in NSCs, even those where relaxation times are longer than a Hubble time. Finally, the overall structures of the stellar populations present non-spherical configurations and show significant cluster to cluster population differences.
description: Comments are welcome
Additional file 2 of Spatial modelling improves genetic evaluation in smallholder breeding programs
Creators: name: Selle, Maria L.
name: Ingelin Steinsland
name: Powell, Owen
name: Hickey, John M.
name: Gorjanc, Gregor
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Additional figures.
Spatial Confinement of the IBEX Ribbon: A Dominant Turbulence Mechanism
Creators: name: Isenberg, Philip A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The narrow ribbon of enhanced energetic neutral atom flux observed by the Interstellar Boundary Explorer (IBEX) spacecraft has prompted numerous ideas to explain its structure and properties. One of these ideas is the "neutral solar wind" scenario, which identifies the source particles as pickup protons in the local interstellar medium originating in solar wind charge-exchange interactions. This scenario has been thought to require unrealistically weak pitch-angle scattering of the pickup protons to explain the narrow structure. Recently, Schwadron & McComas (2013) suggested that this structure could result from a spatial retention of the pickup protons, rather than from a restricted pitch-angle distribution. Here, we present a physically motivated, quantitative mechanism to produce such a spatial configuration. This mechanism is based on the "dominant turbulence" assumption, which can be applied where the production of new pickup protons is slow, and has been used to successfully explain the level of turbulent heating observed in the outer solar wind. This formalism predicts a pickup isotropization process which adds or subtracts energy from the ambient turbulent fluctuations, depending on the initial pitch angle of the pickup protons. We show that a simple model of this process can yield a ribbon structure in qualitative agreement with the observations. The results of this simple model are not yet quantitatively satisfactory, but we suggest several improvements which may reduce the quantitative discrepancy.
description: to be published in The Astrophysical Journal
Radius-Voltage Relation of Graphene Bubbles Controlled by Gate Voltage
Creators: name: Mu, Weihua
name: Zhang, Gang
name: Ou-Yang, Zhong-can
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Graphene on the substrate can form bubbles rising above the sheet. In some cases, the bubble is a perfect spherical surface crown, and its radius can be adjusted by external electric field. In this manuscript, we theoretically investigate the voltage dependence of the spherical bubble's radius. The calculated results are in good agreement with recent experiments on the graphene bubble controlled by applied gate voltage [Appl. Phys. Lett. 99, 093103 (2011)].
description: 8 pages, 2 figures
Study of aluminum droplet ignition in a solid propellant flame
Creators: name:  DMITRY DAVIDENKO
name:   ROBIN DEVILLERS
Publisher: name: Proceedings of the Aerospace Europe Conference - EUCASS - CEAS - 2023
Year: 2023
Subjects: SOLID PROPELLANT FLAME
ALUMINUM DROPLET IGNITION
EXPERIMENT
MODELING

description: The proposed paper presents some experimental and numerical results, obtained at ONERA, on the ignition of aluminum droplets in a solid propellant flame. The tested propellant was fabricated at ONERA for research purposes and its main components have similar proportions to those of the solid propellant for the Ariane 5 rocket boosters. Test samples of few millimeters in size were burnt in nitrogen at a pressure of 1 MPa. High-resolution images of aluminum droplets near the burning propellant surface were obtained with a high-speed camera. It was possible to observe aluminum droplet ignition in the hot gas flow from the burning propellant. Numerical simulations of a single droplet ignition under the experimental conditions were performed in a 2D axisymmetric approach. The temperature and chemical composition of the ambient gas were varied to study the effect of the propellant heterogeneities on the ignition delay. It was found that the presence of free oxygen in the combustion products from propellant zones rich in ammonium perchlorate was the major factor reducing the ignition delay.