cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The function of Tbx2 and Tbx3 in regulation of morphogenesis and sensory cell differentiation in the murine inner ear
Creators: name: Kaiser, Marina
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2022
Subjects: subject: Tbx2
subject: Tbx3
subject: inner ear
subject: morphogenesis
subject: neurogenesis
subject: hair cell diversification
subject: Innenohr
subject: Morphogenese
subject: Neurogenese
subject: Diversifizierung der Haarzellen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Analysis of conditional loss-of-function mutants demonstrated that Tbx2 and Tbx3 are individually and combinatorially required for the morphogenesis of the vestibular and cochlear components of the inner ear by patterning the early otocyst. TBX2 restricts the neurogenic domain to the anterior-ventral aspect of the otic epithelium by repressing Fgf8 and maintaining Tbx1 expression in the posterior-ventral otocyst. Conditional inactivation of Tbx2 in prosensory cells prior to the onset of differentiation, caused a complete conversion of IHCs to OHCs, whereas Tbx2 misexpression led to an increased number of IHCs at the expense of OHCs. Similar changes were observed in the underlying supporting cells. Transcriptional profiling and RNA in situ hybridization analyses suggest that TBX2 regulates the specification of inner hair and supporting cells by repressing Fgfr3-mediated signalling. Hair cell-specific inactivation or misexpression of Tbx2 shortly after birth caused a cell-autonomous transdifferentiation of hair cells. These results identifying TBX2 as a crucial regulator of otic neurogenesis and sensory cell diversification.
An octave bandwidth frequency independent dipole antenna
Creators: name: Raghunathan, Agaram
name: Shankar, N. Udaya
name: Subrahmanyan, Ravi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Precision measurements of the spectrum of the cosmic radio background require frequency independent antennas of small electrical dimensions. We describe the design of a wide-band fat-dipole antenna with a sinusoidal profile having a frequency independent performance over the octave band 87.5 to 175 MHz. The input return loss exceeds 15 dB and the radiation power pattern is frequency invariant and close to cosine square over the octave bandwidth. The structure has been optimized using electromagnetic modeling, and the design has been validated by constructing a prototype.
Accurate atom counting for entanglement-enhanced atom interferometry
Creators: name: Hüper, Andreas
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2020
Subjects: subject: accurate atom counting
subject: entanglement-enhanced atom interferometry
subject: single-atom resolution
subject: Einzelatomauflösung
subject: verschränkungsverstärkte Atominterferometrie
subject: Akkurates Atomzählen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Atom interferometers belong among today's most precise sensors and offer a broad range of possible metrological applications. Given their ability to measure accelerations and rotations precisely, they are suitable for inertial sensing, navigation and geodesy. Beyond this, they proved indispensible for time-keeping as well as fundamental research. This explains why the improvement of achievable sensitivities of atom interferometers is of particular interest. However the sensitivity of atom interferometers is fundamentally restricted by the standard quantum limit. The standard quantum limit can only be surpassed by employing entangled many-partice states. Entangled states, such as the twin-Fock state, allow atom interferometers to improve the phase sensitivity beyond the standard quantum limit, but they are reliant on an accurate detection of the interferometric out come. In this work, an experimental apparatus is designed and set up that will allow for routine generation of highly entangled twin-Fock states in a Rubidium-87 spinor Bose-Einstein condensate. As the main feature of this apparatus, an accurate atom counting fluorescence detection has been implemented. This detection achieves single-particle resolving fluorescence measurements for 1 up to 30 atoms. According to the noise analysis the single-atom resolution extends to a limiting atom number of 390(20) atoms. The implemented quadrupole coils with their strong gradient of up to 300 G/cm offer a tight confinement that in combination with the 55 W optical dipole trap laser will enable a fast repetition rate of the creation of highly entangled quantum states.
Fundamental material properties of the 2LiBH4-MgH2 reactive hydride composite for hydrogen storage: (II) Kinetic properties
Creators: name: Jepsen, Julian
name: Milanese, Chiara
name: Puszkiel, Julian
name: Girella, Alessandro
name: Schiavo, Benedetto
name: Lozano, Gustavo A.
name: Capurso, Giovanni
name: Von Colbe, José M. Bellosta
name: Marini, Amedeo
name: Kabelac, Stephan
name: Dornheim, Martin
name: Klassen, Thomas
Publisher: name: Basel : MDPI AG
Year: 2018
Subjects: subject: Borohydrides
subject: Hydrogen storage
subject: LiBH4-MgH2
subject: Material properties
subject: Metal hydrides
subject: Reactive hydride composites
subject: Activation energy
subject: Hydrides
subject: Kinetics
subject: Lithium compounds
subject: Magnesium compounds
subject: Materials properties
subject: Reaction kinetics
subject: Solid state reactions
subject: Design and Development
subject: Hydrogen storage capacities
subject: Hydrogen storage tank
subject: Measurement methods
subject: Volumetric measurement
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Reaction kinetic behaviour and cycling stability of the 2LiBH4-MgH2 reactive hydride composite (Li-RHC) are experimentally determined and analysed as a basis for the design and development of hydrogen storage tanks. In addition to the determination and discussion about the properties; different measurement methods are applied and compared. The activation energies for both hydrogenation and dehydrogenation are determined by the Kissinger method and via the fitting of solid-state reaction kinetic models to isothermal volumetric measurements. Furthermore, the hydrogen absorption-desorption cycling stability is assessed by titration measurements. Finally, the kinetic behaviour and the reversible hydrogen storage capacity of the Li-RHC are discussed.
Potamogeton alpinus L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: R. alpinus L. Cat. 310. Nichts zuzufügen.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Linear and nonlinear optical properties of multi-layered spherical nano-systems with donor impurity in the center
Creators: name: Jafari, A. R.
name: Naimi, Yaghoob
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this study, the linear, third-order nonlinear and total absorption coefficients (ACs) of multi-layered quantum dot (MLQD) and multi-layered quantum anti-dot (MLQAD) with a hydrogenic impurity are calculated. The analytical and numerical solutions of Schrödinger equation for both MLQD and MLQAD, within the effective mass approximation and dielectric continuum model, are obtained. As our numerical results indicate, an increase in the optical intensity changes the total AC considerably, but the intensity range that leads to these changes is different for MLQAD and MLQD. It is observed that by changing the incident photon energy, the AC curves corresponding to MLQAD and MLQD are of different shapes and behaviors. The peak heights of AC curves corresponding to MLQAD are strongly affected by changing the core antidot radius and the shell thickness values, however in these cases no considerable changes are observed in peak heights of MLQD. Furthermore, in contrast to MLQAD, the photon energies corresponding to total AC peaks of MLQD are more affected by changing the confining potentials (CPs).
description: 7 pages, 9 figures; Accepted for publication in Journal of Computational Electronics
title: Global Innovation Index 2024 :
title: Executive version.
titleType: Subtitle
Creators: name: World Intellectual Property Organization.
name: Dutta, Soumitra.
name: Lanvin, Bruno.
name: Rivera León, Lorena.
name: Wunsch-Vincent, Sacha.
Publisher: name: World Intellectual Property Organization,
Year: 0
Subjects: Innovations
Technological innovations

description: The Executive Version of the Global Innovation Index 2024 provides key highlights and results presented in the full report. The GII 2024 reveals who is leading in global innovation, ranking the innovation performance of 133 economies and highlighting their strengths and weaknesses. In addition, it identifies the world’s top 100 science and technology clusters.
Impact of stellar companions on precise radial velocities
Creators: name: Cunha, D.
name: Figueira, P.
name: Santos, N. C.
name: Lovis, C.
name: Boué, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Context: With the announced arrival of instruments such as ESPRESSO one can expect that several systematic noise sources on the measurement of precise radial velocity will become the limiting factor instead of photon noise. A stellar companion within the fiber is such a possible noise source. Aims: With this work we aim at characterizing the impact of a stellar companion within the fiber to radial velocity measurements made by fiber-fed spectrographs. We consider the contaminant star either to be part of a binary system whose primary star is the target star, or as a background/foreground star. Methods: To carry out our study, we used HARPS spectra, co-added the target with contaminant spectra, and then compared the resulting radial velocity with that obtained from the original target spectrum. We repeated this procedure and used different tunable knobs to reproduce the previously mentioned scenarios. Results: We find that the impact on the radial velocity calculation is a function of the difference between individual radial velocities, of the difference between target and contaminant magnitude, and also of their spectral types. For the worst-case scenario in which both target and contaminant star are well centered on the fiber, the maximum contamination for a G or K star may be higher than 10 cm/s, on average, if the difference between target and contaminant magnitude is $Δm$ < 10, and higher than 1 m/s if $Δm$ < 8. If the target star is of spectral type M, $Δm$ < 8 produces the same contamination of 10 cm/s, and a contamination may be higher than 1 m/s
description: Accepted for publication in A&A on 29/12/2019 - 14 pages
Composition operators on reproducing kernel Hilbert spaces with analytic positive definite functions
Creators: name: Ikeda, Masahiro
name: Ishikawa, Isao
name: Sawano, Yoshihiro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Functional Analysis (math.FA)
subject: Complex Variables (math.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 47B33, 47B32, 32A37, 42C15, 46E22, 68T01

description: In this paper, we specify what functions induce the bounded composition operators on a reproducing kernel Hilbert space (RKHS) associated with an analytic positive definite function defined on $\mathbf{R}^d$. We prove that only affine transforms can do so in a pretty large class of RKHS. Our result covers not only the Paley-Wiener space on the real line, studied in previous works, but also much more general RKHSs corresponding to analytic positive definite functions where existing methods do not work. Our method only relies on an intrinsic properties of the RKHSs, and we establish a connection between the behavior of composition operators and the asymptotic properties of the greatest zeros of orthogonal polynomials on a weighted $L^2$-spaces on the real line. We also investigate the compactness of the composition operators and show that any bounded composition operators cannot be compact in our situation.
description: We fix several typos. We add a result in the case of a tensor product of even functions on the real line in Section 4.4
NMR Probe of Metallic States in Nanoscale Topological Insulators
Creators: name: Koumoulis, Dimitrios
name: Chasapis, Thomas C.
name: Taylor, Robert E.
name: Lake, Michael P.
name: King, Danny
name: Jarenwattananon, Nanette N.
name: Fiete, Gregory A.
name: Kanatzidis, Mercouri G.
name: Bouchard, Louis-S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A 125Te NMR study of bismuth telluride nanoparticles as function of particle size revealed that the spin-lattice relaxation is enhanced below 33 nm, accompanied by a transition of NMR spectra from single to bimodal regime. The satellite peak features a negative Knight shift and higher relaxivity, consistent with core polarization from p-band carriers. Whereas nanocrystals follow a Korringa law in the range 140-420K, micrometer particles do so only below 200K. The results reveal increased metallicity of these nanoscale topological insulators in the limit of higher surface-to-volume ratios.
description: 17 pages, 4 figures, 1 table
Surgery obstructions and character varieties
Creators: name: Sivek, Steven
name: Zentner, Raphael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We provide infinitely many rational homology 3-spheres with weight-one fundamental groups which do not arise from Dehn surgery on knots in $S^3$. In contrast with previously known examples, our proofs do not require any gauge theory or Floer homology. Instead, we make use of the $SU(2)$ character variety of the fundamental group, which for these manifolds is particularly simple: they are all $SU(2)$-cyclic, meaning that every $SU(2)$ representation has cyclic image.
description: 32 pages, 4 figures; v2: accepted version
A criterion for compatibility of conformal and projective structures
Creators: name: Matveev, Vladimir S.
name: Trautman, Andrzej
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In a space-time, a conformal structure is defined by the distribution of light-cones. Geodesics are traced by freely falling particles, and the collection of all unparameterized geodesics determines the projective structure of the space-time. The article contains a formulation of the necessary and sufficient conditions for these structures to be compatible, i.e. to come from a metric tensor which is then unique up to a constant factor. The theorem applies to all dimensions and signatures.
description: 5 pages
High Temperature Resistant Eddy Current Sensor for “in situ” Monitoring the Material Microstructure Development of Steel Alloys during Heat Treatment : Bainite Sensor
Creators: name: Klümper-Westkamp, H.
name: Zoch, H.-W.
name: Reimche, W.
name: Bach, F.W.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2011
Subjects: subject: eddy current
subject: bainite sensor
subject: material microstructure
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Production of tools and component for automotive and energy production includes in most application the adjustment in hardness, toughness, fatigue and wear properties. This is done by heat treatment [4]. Depending on material and Target course different treatment processes are applied like martensitic hardening, bainitic hardening [3], nitriding, nitrocarburizing, carburizing and annealing. Up to now these heat treatment processes are done by recipe.Temperature and time of treatment are measured. No information about the change in material microstructure is available during treatment. So scattering results are the consequence and high security time factors have to be Included to get the necessary process capability. To overcome this difficulty, eddy current sensors, measuring and analysis systems have been developed and are implemented in the hot furnace to measure in-situ the progress of thedeveloping material microstructure during heat treatment of the components.
Negative Thermal Expansion in cubic ZrW2O8: Role of Phonons in Entire Brillouin Zone From ab-inito Calculations
Creators: name: Gupta, M. K.
name: Mittal, R.
name: Chaplot, S. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report ab-inito density functional theory calculation of phonons in cubic phase of ZrW2O8 in the entire Brillouin zone and identify specific anharmonic phonons that are responsible for large negative thermal expansion (NTE) in terms of translation, rotation and distortion of WO4 and ZrO6. We have used density functional calculations to interpret the experimental phonon spectra as a function of pressure and temperature as reported in literature. We discover that the phonons showing anharmonicty with temperature are different from those showing anharmonicity with pressure although both are of similar frequencies. Only the latter phonons are associated with NTE. Therefore the cubic and/or quadratic anharmonicity of phonons is not relevant to NTE but just the volume dependence of frequencies. The calculations are able to reproduce the observed anomalous trends, namely, the softening of the low frequency peak at about 5 meV in the phonon spectra with pressure and its hardening with temperature, while both the changes involve a compression of the lattice.
description: 14 pages, 6 figures. Supplementary material
Paratimea oxeata Pulitzer-Finali 1978
Creators: name: Morrow, Christine
name: Cárdenas, Paco
name: Boury-Esnault, Nicole
name: Picton, Bernard
name: Mccormack, Grace
name: Soest, Rob Van
name: Collins, Allen
name: Redmond, Niamh
name: Maggs, Christine
name: Sigwart, Julia
name: Allcock, Louise A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Axinellida
Stelligeridae
Paratimea
Paratimea oxeata

description: PARATIMEA OXEATA PULITZER-FINALI, 1978
(FIG. 4A–E)
Material examined: S153, Trémies Cave, Calanque coast, France, Mediterranean Sea, 43°11.8573′N, 5°30.6022′E, 4 July 1981 (Jean Vacelet’s Collection, Marine Station of Endoume).
Description: Outer morphology: Massive lobose, surface conulose, oscules arranged on top of raised humps (Fig. 4A).
description: Published as part of Morrow, Christine, Cárdenas, Paco, Boury-Esnault, Nicole, Picton, Bernard, Mccormack, Grace, Soest, Rob Van, Collins, Allen, Redmond, Niamh, Maggs, Christine, Sigwart, Julia & Allcock, Louise A., 2019, Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae), pp. 31-81 in Zoological Journal of the Linnean Society 187 on page 48
MP3 compression artefacts as creative material
Creators: name: Reeve-Baker, Jim
Publisher: name: The University of Edinburgh
Year: 2023
Subjects: MP3
Compression
Composition
Noise
Music

description: This creative research project is concerned with exploring the production and properties of MP3 data compression artefacts and effects, categorising them in a taxonomy, and arranging those artefacts for the creation of musical works. The thesis consists of music and text. The music is arranged into a portfolio of six compositions and four interludes that explore the creative potential of compression artefacts. The text provides artistic contexts, perceptual coding concepts, the methodology used for creating artefacts, a taxonomy of compression artefacts, techniques used for arranging the music, and commentaries on the pieces of music themselves. Artefacts have been produced by encoding noise colours and transient signals with MP3 codecs set to low bitrates and low sample rates. Signals have been run through the encode- decode cycle multiple times, a process called cascading, in order to amplify properties further and make them easier to analyse and compose with. A taxonomy has been organised, acting as a repository for primary and secondary research, and to act as a guide for re/creating artefacts, whether that be for creative means or otherwise. The taxonomy gives names of artefacts, descriptions of them, and explanations as to how they are created. Artefacts act as the raw material for composing music, and using arrangement and processing techniques inspired by a variety of electronic and mid-century composers, works have been constructed in an electroacoustic style. Arrangement and processing techniques include – but are not limited to – clusters, streams, time-stretching, and pitch-shifting. The use of compression artefacts as the sonic material in these musical works places the project within an artistic practice that uses breakages and failure as the aesthetic focus of a work. The project explores the limitations of compression technologies, and approaches media and formats that are normally considered as a means of transmitting or archiving sound as a means of generating it too.
Juncus conglomeratus Murray
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: K. conglomeratus Murray Cat. 310. l: Bouveret (J.); Vernayaz (J.); Salvan (J.); Outre-Rhone (J.). Var. divaricatus (Thuillier) Bluff etFingerh. - l:Vernayaz (Wilczek). - 2:Branson-Saillon (Garns). Dürfte die vorherrschende Form sein.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Concept for Automated Production of CFRP-metal Hybrid Compounds Integrated in an Automated Fiber Placement Process
Creators: name: Schmidt, C.
name: Denkena, B.
name: Gross, L.
name: Völtzer, K.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2017
Subjects: subject: intrinsic hybrid compound
subject: automated fiber placement
subject: process monitoring
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: To solve the problem of load transmission into thin walled CFRP Structures, a new joining technology is being developed (Multi Layer Insert – MLI). It consists of multiple thin metal foils to distribute load optimally into every single CFRP layer. The placement process for the metal layers is integrated into an Automated Fiber Placement system. In this paper, a process sequence of MLI placement is presented containing the following steps: stockpiling of metal layers, separation, handling, positioning, lay up and fixation of metal layers during fiber placement. Moreover, the monitoring and control concept is discussed.
The phase transition for parking on Galton--Watson trees
Creators: name: Curien, Nicolas
name: Hénard, Olivier
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05

description: We establish a phase transition for the parking process on critical Galton--Watson trees. In this model, a random number of cars with mean $m$ and variance $σ^{2}$ arrive independently on the vertices of a critical Galton--Watson tree with finite variance $Σ^{2}$ conditioned to be large. The cars go down the tree towards the root and try to park on empty vertices as soon as possible. We show a phase transition depending on $$ Θ:= (1-m)^2- Σ^2 (σ^2+m^2-m).$$ Specifically, when $m \leq 1$, if $ Θ>0,$ then all but (possibly) a few cars will manage to park, whereas if $Θ<0$, then a positive fraction of the cars will not find a spot and exit the tree through the root. This confirms a conjecture of Goldschmidt and Przykucki.
description: 17 pages, 5 figures
Structural Evolution of Thin Lamellar Cementite during Cold Drawing of Eutectoid Steels
Creators: name: Gersteina, Gregory
name: Nürnberger, Florian
name: Dudzinski, Wlodzimierz
name: Grygier, Dominika
name: Schaper, Mirko
name: Milenin, Andrzej
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2014
Subjects: subject: drawing
subject: pearlite
subject: lamellae
subject: branching
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Eutectoid steel wires are heat treated at isothermal temperatures to generate not only pearlitic microstructures but also bainite and martensite. These wires are subsequently drawn to increasing strain levels. The microstructural evolution is observed using scanning electron microscopy SEM and transmission electron microscopy TEM. Measurements of the lamellar spacing at different drawing stages reveal a thinning and a branching of the lamellae. In addition to this, the type of heat treatment influences the appearance of the lamellae and the formation of fine carbides. A numerical model was employed to compute the deformation conditions and the interlamellar spacing. The transformation and dissolution of cementite, branching of cementite and diffusion along dislocations were analysed with respect to various models from the scientific literature.
title: „Je suis dedans et […] ils sont dehors“ - Traumatische Erinnerung und Raumzeit bei Jorge Semprún
Creators: name: Ried, Stefanie
Publisher: name: University Library Heidelberg
Year: 2015

description: This essay provides a contribution to study of the aesthetic representation of traumatic experiences in literature. Jorge Semprún, survivor of the concentration camp in Buchenwald, – as one of the first authors telling their traumatic experience after Primo Levi – develops in his narrative, especially in L’écriture ou la vie, a wide meta-narrative space concerning the victims’ access to their own memory and their process of writing it down; at the same time the process of memory is reflected on a diegetic level. The author presents a narrator telling his past in different perspectives: leaping between different levels in the construction of discourses, thus between different times and spaces. These moments of time warp into the camp past will be the object of the following analysis which intends to reveal Semprún’s narrative strategies. The main focus will be on the constitution of space and time and its perception. Based on the concept of Bachtin’s chronotopos, the aim of this work is to postulate an own space-time for the literary perception of a traumatic moment in a narrator’s life.
description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 8 (2015): HeLix - Dossiers zur romanischen Literaturwissenschaft, Beginn und Erscheinungsfrequenz: Jahr: 2009, Ausgaben pro Band: 1, Bände pro Jahr: 2
Thermal Image-based Monitoring for the Automated Fiber Placement Process
Creators: name: Schmidt, Carsten
name: Denkena, Berend
name: Völtzer, Klaas
name: Hocke, Tristan
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2017
Subjects: subject: automated fiber placement
subject: process monitoring
subject: thermography
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Due to increasing consumption of fiber-reinforced plastics (CFRP) especially in aerospace applications also production processes such as Automated Fiber Placement (AFP) gain in importance. However, manual visual inspection in the AFP quality assurance is time consuming and insufficient, not least through the low contrast of CFRP materials. The presented process monitoring for AFP bases on occurring temperature differences during the lay-up process. Therefore, a newly developed monitoring system containing an infrared camera integrated in the Fiber Placement head is presented. Its algorithm can localize tows as well as certain temperature anomalies. Combined with the process knowledge provided by the path planning defects can be detected online.
Prevalence of arrhythmia in COVID-19 patients with mild/moderate and severe illness: a prospective cohort study
Creators: name: Gupta, Praveen
name: Bansal, Sandeep
name: Gupta, Anunay
name: Gupta, Kapil
name: Saluja, Sumita
name: Kattumannil, Sudheesh Kumar
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: The type of arrhythmias, and their prevalence in mild/moderate and severe COVID-19 patients admitted to the hospital are unknown from a prospective cohort study. We did continuous electrocardiograms along with multiple ECGs in 305 consecutive hospitalized COVID-19 patients. The incidence of arrhythmias was 6.8% (21/305) in the target population. The incidence of arrhythmias was 9.2% (17/185) in patients with severe COVID-19 illness and 3.3% (4/120) in patients with mild/moderate COVID-19 illness with no significant difference (p = 0.063). All the arrhythmias were new-onset arrhythmias in this study. 95% (20/21) of these arrhythmias were atrial arrhythmia with 71.42% (15/21) being atrial fibrillation and one episode of sustained polymorphic ventricular tachycardia. No episode of high-grade atrioventricular block, sustained monomorphic ventricular arrhythmia, or torsades de pointes arrhythmias were observed in this study. The patients with arrhythmias were admitted to the intensive care unit (80.9% vs. 50.7%; p: 0.007), were on a ventilator (47.6% vs. 21.4%; p: 0.006), and had high in-hospital mortality (57.1% vs. 21.1%; p: 0.0001) than patients without arrhythmias. Atrial arrhythmias were the most frequent arrhythmias in hospital-admitted COVID-19 patients with atrial fibrillation being the most common arrhythmia. Clinical Trial Registry India (CTRI) (CTRI/2021/01/030788). (https://www.ctri.nic.in/)
Radiative improvement of spin and Darwin terms in the NRQCD action
Creators: name: Hammant, T. C.
name: Hart, A. G.
name: von Hippel, G. M.
name: Horgan, R. R.
name: Monahan, C. J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present updated results for the radiative improvement of the σ.B term and the spin-dependent four-fermion terms in the lattice NRQCD action, and first results for the radiative corrections to the NRQCD Darwin term and spin-independent four-fermion terms. The spin-dependent terms have significant impact on getting the correct hyperfine splitting for both bottomonium and heavy-light mesons, while the spin-independent terms suffer from a conspiracy between lattice artifacts and severe IR divergences that complicates their evaluation.
description: 7 pages, 3 pdf figures; proceedings of 30th International Symposium on Lattice Field Theory, June 24-29, 2012, Cairns, Australia
Determining lot sizes in production areas : exact calculations versus research based estimation
Creators: name: Schmidt, M.
name: Münzberg, B.
name: Nyhuis, P.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2015
Subjects: subject: production management
subject: production planning and control
subject: production logistics
subject: logistic objectives
subject: lot sizing
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Determining lot sizes in production areas is an essential task of production planning and control. Due to the growing number of product variants, calculating economical lot sizes is becoming increasingly important in the industrial practice. Although planning lot sizes plays an important role in industrial production, existing methods only partially consider the variety of impacts. This paper presents existing methods and discusses their impact on the multi-criteria objective achievement of industrial companies. Based on actual case studies the logistical and economical relevance of determining lot sizes is illustrated and the suitability of different approaches for industrial practice is discussed.
Exploring Effects of Sequencing Modes towards Logistics Target Achievement on the Example of Steel Production
Creators: name: Windt, K.
name: Nyhuis, P.
name: Herr, O.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2012
Subjects: subject: production control
subject: logistics targets
subject: due date reliabiltiy
subject: steel production sequencing
subject: industry case study
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: The objective of this paper is to discuss the logistics target conflict of achieving both low set-up costs and high due-date reliability.We are introducing first approaches towards a methodology dealing with this target conflict which enables a strategic positioning on behalf of new Sequencing Operating Curves. Based on an industry case study in the steel industry, we are describing the problem of batching and sequencing under highly demanding technologically constraints. Analysis based on industry data display the extent of the described problem in practice.
The intriguing stellar populations in the globular clusters NGC 6388 and NGC 6441
Creators: name: Bellini, A.
name: Piotto, G.
name: Milone, A. P.
name: King, I. R.
name: Renzini, A.
name: Cassisi, S.
name: Anderson, J.
name: Bedin, L. R.
name: Nardiello, D.
name: Pietrinferni, A.
name: Sarajedini, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: NGC 6388 and NGC 6441 are two massive Galactic bulge globular clusters which share many properties, including the presence of an extended horizontal branch (HB), quite unexpected because of their high metal content. In this paper we use HST's WFPC2, ACS, and WFC3 images and present a broad multicolor study of their stellar content, covering all main evolutionary branches. The color-magnitude diagrams (CMDs) give compelling evidence that both clusters host at least two stellar populations, which manifest themselves in different ways. NGC 6388 has a broadened main sequence (MS), a split sub-giant branch (SGB), and a split red giant branch (RGB) that becomes evident above the HB in our data set; its red HB is also split into two branches. NGC 6441 has a split MS, but only an indication of two SGB populations, while the RGB clearly splits in two from the SGB level upward, and no red HB structure. The multicolor analysis of the CMDs confirms that the He difference between the two main stellar populations in the two clusters must be similar. This is observationally supported by the HB morphology, but also confirmed by the color distribution of the stars in the MS optical band CMDs. However, a MS split becomes evident in NGC 6441 using UV colors, but not in NGC 6388, indicating that the chemical patterns of the different populations are different in the two clusters, with C, N, O abundance differences likely playing a major role. We also analyze the radial distribution of the two populations.
description: 31 pages, 26 figures (some in low res to fit within astroph 15 MB limit), 7 tables, accepted for publication in the Astrophysical Journal
Rapid access to RNA resonances by proton-detected solid-state NMR at >100 kHz MAS
Creators: name: Marchanka, Alexander
name: Stanek, Jan
name: Pintacuda, Guido
name: Carlomagno, Teresa
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2018
Subjects: subject: RNA Resonance
subject: Nuclear Magnetic Resonance
subject: Spectroscopy
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Fast (>100 kHz) magic angle spinning solid-state NMR allows combining high-sensitive proton detection with the absence of an intrinsic molecular weight limit. Using this technique we observe for the first time narrow 1H RNA resonances and assign nucleotide spin systems with only 200 μg of uniformly 13C,15N-labelled RNA.
Accelerating Cooperative Planning for Automated Vehicles with Learned Heuristics and Monte Carlo Tree Search
Creators: name: Kurzer, Karl
name: Fechner, Marcus
name: Zöllner, J. Marius
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: Robotics (cs.RO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Efficient driving in urban traffic scenarios requires foresight. The observation of other traffic participants and the inference of their possible next actions depending on the own action is considered cooperative prediction and planning. Humans are well equipped with the capability to predict the actions of multiple interacting traffic participants and plan accordingly, without the need to directly communicate with others. Prior work has shown that it is possible to achieve effective cooperative planning without the need for explicit communication. However, the search space for cooperative plans is so large that most of the computational budget is spent on exploring the search space in unpromising regions that are far away from the solution. To accelerate the planning process, we combined learned heuristics with a cooperative planning method to guide the search towards regions with promising actions, yielding better solutions at lower computational costs.
Rumex sanguineus
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: R. sanguineus L. (I?. nemorosus Schrader) Cat. 310. l: Le Chätelard ob Finhaut (Coquoz); Collonges-Dorenaz, var. viridis (Sibth.) Sm. (Garns).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Genetic control of flower petal number in Rosa x Damascena Mill f. trigintipetala
Creators: name: Rusanov, Krasimir
name: Kovacheva, Natasha
name: Rusanova, Mila
name: Linde, Marcus
name: Debener, Thomas
name: Atanassov, Ivan
Publisher: name: Abingdon : Taylor and Francis Ltd.
Year: 2019
Subjects: subject: AGAMOUS
subject: number of petals
subject: Rosa x damascena Mill f. trigintipetala
subject: Cloning
subject: Additive effects
subject: Genetic control
subject: Genetic mechanism
subject: Molecular marker
subject: Self pollination
subject: Gene expression
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: We studied the petal number trait in a population obtained after self-pollination of R. x damascena f. trigintipetala following analysis of molecular markers which have previously been mapped near the major dominant locus Blfo/d6 determining this trait in other rose species including R. multiflora and R. hybrida. The results showed that the same genetic mechanism, which determines the petal number trait in R. multiflora and R. hybrida also controls the trait in R. x damascena f. trigintipetala and is related to the dominant effect of a single copy allele in the tetraploid genome of this species. We also analyzed the expression of several flower homeotic genes including R. x damascena APETALA1/FUL-like (paleo AP1 type), R. x damascena euAPETALA 3 (euAP3 line) and R. x damascena AGAMOUS in early stage flower buds corresponding to plants with double and simple flowers. The obtained results showed that only R. x damascena AGAMOUS was differentially expressed between the samples of double and simple flowers, its relative expression being upregulated 3.5-fold in simple flowers. We further cloned and sequenced the four genomic clones of R. x damascena AGAMOUS and studied the potential additive effect of this gene by analysing the segregation of its four alleles in the population of self-pollinated R. x damascena. Analysis of variance of the data for petal number and allele segregation did not show a statistically significant effect of any allele configuration of the AGAMOUS gene on the petal number trait in R. x damascena f. trigintipetala.
The detectability of habitable exomoons with Kepler
Creators: name: Awiphan, Supachai
name: Kerins, Eamonn
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In this paper, the detectability of habitable exomoons orbiting around giant planets in M-dwarf systems using Transit Timing Variations (TTVs) and Transit Timing Durations (TDVs) with Kepler-class photometry is investigated. Light curves of systems with various configurations were simulated around M-dwarf hosts of mass 0.5 Msun and radius 0.55 Rsun. Jupiter-like giant planets which offer the best potential for hosting habitable exomoons were considered with rocky super-Earth-mass moons. The detectability is measured by using the phase-correlation between TTV and TDV signals. Since the TDV signal is typically weaker than the TTV signal, confirmation of an exomoon detection will depend on being able to detect a TDV signal. We find that exomoons around planets orbiting within the habitable zone of an M-dwarf host star can produce both detectable TTV and TDV signatures with Kepler-class photometry. While aliasing between the planet period and moon period may hinder exomoon detection, we also find some strong correlation signatures in our simulation (eg. correlation: >0.7) which would provide convincing exomoon signatures. With the addition of red noise stellar variability, correlations generally weaken. However simulated examples with planet masses less than around 25 Mearth, moons of mass 8-10 Mearth and specific values of planet and moon periods still yield detectable correlation in 25-50% of cases. Our simulation indicates that Kepler provides one of the best available opportunities for exomoon detection.
description: 14 pages, 8 figures, 2 tables, Accepted by MNRAS
Medium-and high-tech export and renewable energy consumption: Non-linear evidence from the ASEAN countries
Creators: name: Dinh, Cong Khai
name: Ngo, Quang Thanh
name: Nguyen, Trung Thanh
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: ASEAN
subject: Economic growth
subject: Employment
subject: Inflation
subject: Medium- and high-tech export
subject: Renewable energy
subject: Climate change
subject: Covariance matrix
subject: Economic analysis
subject: Fossil fuels
subject: Population statistics
subject: Regression analysis
subject: Association of Southeast Asian Nations
subject: Feasible solution
subject: Fixed effects regression models
subject: Gross domestic products
subject: High-tech exports
subject: Renewable energy consumption
subject: Renewable energy use
subject: Temporal dependence
subject: Energy utilization
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Sustaining economic growth while reducing dependence on fossil fuels remains a challenge for our world to fight against climate change and therefore finding a way to promote economic growth and increase renewable energy use is needed. This paper uses a 22-year panel dataset (1994– 2015) of 9 countries in the Association of Southeast Asian Nations provided by the World Bank World Development Indicators to examine the impact of medium-and high-tech export on renewable energy use. We employ a fixed-effects regression model with the Driscoll–Kraay nonparametric covariance matrix estimator to account for sectoral and temporal dependence. We also control for inflation, employment, population growth, and gross domestic product per capita in our estimations. Our results demonstrate a U-shaped association between medium-and high-tech export and renewable energy consumption of these economies. The results propose that enhancing medium-and high-tech export could be a feasible solution for promoting renewable energy consumption. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Interparticle Distance Variation in Semiconductor Nanoplatelet Stacks
Creators: name: Bigall, Nadja C.
name: Graf, Rebecca T.
name: Schlosser, Anja
name: Zámbó, Dániel
name: Schlenkrich, Jakob
name: Rusch, Pascal
name: Chatterjee, Atasi
name: Pfnür, Herbert
Publisher: name: Weinheim : Wiley-VCH
Year: 2022
Subjects: subject: charge carrier transport
subject: distance variation
subject: ligand exchange
subject: nanoplatelets
subject: photo-electrochemistry
subject: self-assembly
subject: stacks
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: In the large field of research on nanoplatelets (NPLs), their strong tendency to self-assemble into ordered stacks and the resulting changes in their properties are of great interest. The assembly reveals new characteristics such as the charge carrier transport through the NPL assembly or altered optical properties. In particular, a reduced distance should enhance the charge carrier transport due to higher electronic coupling of neighboring NPLs, and therefore, is the focus of this work. To modify the inter-particle distances, the straightforward method of ligand exchange is applied. Various CdSe and CdSe/CdX (hetero-) NPLs serve as building blocks, which not only display different material combinations but also different types of hetero-structures. The surface-to-surface distance between the stacked NPLs can be reduced to below 1 nm, thus, to less than the half compared to assemblies of pristine NPLs. Moreover, for certain NPLs stacking is only enabled by the ligand exchange. To characterize the ligand exchanges and to investigate the influences of the reduced distances, photo-electrochemical measurements, fluorescence spectroscopy, energy dispersive X-ray spectroscopy, nuclear magnetic resonance, and X-ray photoelectron spectroscopy are performed. It is possible to show higher photocurrents for smaller distances, indicating enhanced charge transport ability within those stacks.