cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interparticle Interaction Matters: Charge Carrier Dynamics in Hybrid Semiconductor–Metal Cryoaerogels
Creators: name: Schlosser, Anja
name: Schlenkrich, Jakob
name: Zámbó, Dániel
name: Rosebrock, Marina
name: Graf, Rebecca T.
name: Escobar Cano, Giamper
name: Bigall, Nadja C.
Publisher: name: Weinheim : Wiley-VCH
Year: 2022
Subjects: subject: charge carrier separation
subject: cryoaerogels
subject: hybrid nanocrystal gels
subject: semiconductor–metal hybrid gels
subject: spectroelectrochemistry
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Integration of noble metals into semiconductor-based nanoparticle gel structures facilitates the extraction of photoexcited charge carriers upon illumination. While charge carrier generation takes place in the semiconductor component, noble metals in contact to the semiconductor act as electron sinks. Thus, the nature of the interface between the components is of essential importance, as it dictates the characteristics of the interparticle contact. Here, the influence of the nanoscale building block design on the charge carrier dynamics in cryoaerogels consisting of CdSe/CdS nanorods and nanoplatelets as well as of gold or platinum is reported. It is shown that direct growth of noble metal domains onto the semiconductor prior to the gelation significantly facilitates charge carrier separation in their cryoaerogel structures compared to gels from the colloidal mixtures of semiconductor and noble metal nanoparticles, the latter ones having less defined metal/semiconductor boundaries and much more arbitrary component distributions. Although the structure of the different cryoaerogel systems is similar at the micro- and macroscale, nanoscale differences caused by the two synthetic routes drive essentially different behavior regarding the charge carrier dynamics efficiency. These effects are observed spectroelectrochemically via intensity-modulated photocurrent spectroscopy emphasizing the importance of the semiconductor–metal connection in the hybrid structures.
Pd-Doped Cellulose Carbon Aerogels for Energy Storage Applications
Creators: name: Ramirez, Nathalia
name: Zámbó, Dániel
name: Sardella, Fabiana
name: Kißling, Patrick A.
name: Schlosser, Anja
name: Graf, Rebecca T.
name: Pluta, Denis
name: Deiana, Cristina
name: Bigall, Nadja C.
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: carbon aerogel
subject: cellulose
subject: electric double-layer capacitors
subject: Pd particles
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: In order to implement a sustainable approach in the development of carbonaceous materials with improved capacitive properties, the development of Pd-doped cellulose carbon aerogels (CA-PdX) is presented. Upon introducing Pd nanoparticles to the carbonaceous matrix prior to the gel formation, carbon aerogels with various Pd content are prepared. Physicochemical properties (such as texture, morphology, crystal structure, and surface chemistry) of CA-PdX are revealed. Additionally, a comparative analysis in their electrochemical properties is performed to shed light on the effect of Pd incorporated into the matrices. It is found that Pd-doping leads to the significant enhancement of power and energy densities (2.9-fold and 55-fold, respectively) compared to those of carbon aerogel without doping (CA-Blank). The straightforward preparation method as well as the powerful control over the structure and composition pave the way toward the utilization of these hybrid materials in energy storage applications.
Computer vision applied to musical documents - The Biblissima+ cluster 6: "The Challenges of Musical Heritage"
Creators: name: Roger, Kévin
Publisher: name: Zenodo
Year: 2023
Subjects: music
musicology
python
codicology
digital
IIIF
DIAMM
ancient sources
database

description: Présentation par Kévin Roger du programme DIAMMtoIIIF développé par le cluster 6 Biblissima+ lors du colloque "Novel Approaches to Digital Codicology" (Studium) au Centre d'études supérieures de la Renaissance (Université de Tours), du 10 au 12 mai 2023.
description: Ce travail a bénéficié d'une aide de l'État gérée par l'Agence Nationale de la Recherche au titre du programme d'Investissements d'avenir portant la référence « ANR-21-ESRE-0005 » (ÉquipEx Biblissima+)
The Phase Transition of Matrix Recovery from Gaussian Measurements Matches the Minimax MSE of Matrix Denoising
Creators: name: Donoho, David L.
name: Gavish, Matan
name: Montanari, Andrea
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Let $X_0$ be an unknown $M$ by $N$ matrix. In matrix recovery, one takes $n < MN$ linear measurements $y_1,..., y_n$ of $X_0$, where $y_i = \Tr(a_i^T X_0)$ and each $a_i$ is a $M$ by $N$ matrix. For measurement matrices with Gaussian i.i.d entries, it known that if $X_0$ is of low rank, it is recoverable from just a few measurements. A popular approach for matrix recovery is Nuclear Norm Minimization (NNM). Empirical work reveals a \emph{phase transition} curve, stated in terms of the undersampling fraction $δ(n,M,N) = n/(MN)$, rank fraction $ρ=r/N$ and aspect ratio $β=M/N$. Specifically, a curve $δ^* = δ^*(ρ;β)$ exists such that, if $δ> δ^*(ρ;β)$, NNM typically succeeds, while if $δ< δ^*(ρ;β)$, it typically fails. An apparently quite different problem is matrix denoising in Gaussian noise, where an unknown $M$ by $N$ matrix $X_0$ is to be estimated based on direct noisy measurements $Y = X_0 + Z$, where the matrix $Z$ has iid Gaussian entries. It has been empirically observed that, if $X_0$ has low rank, it may be recovered quite accurately from the noisy measurement $Y$. A popular matrix denoising scheme solves the unconstrained optimization problem $\text{min} \| Y - X \|_F^2/2 + λ\|X\|_* $. When optimally tuned, this scheme achieves the asymptotic minimax MSE $\cM(ρ) = \lim_{N \goto \infty} \inf_λ\sup_{\rank(X) \leq ρ\cdot N} MSE(X,\hat{X}_λ)$. We report extensive experiments showing that the phase transition $δ^*(ρ)$ in the first problem coincides with the minimax risk curve $\cM(ρ)$ in the second problem, for {\em any} rank fraction $0 < ρ< 1$.
Dynamic Localization of Interacting Particles in an Anharmonic Potential
Creators: name: Herrera, Mark
name: Antonsen, Thomas M.
name: Ott, Edward
name: Fishman, Shmuel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the effect of anharmonicity and interactions on the dynamics of an initially Gaussian wavepacket in a weakly anharmonic potential. We note that depending on the strength and sign of interactions and anharmonicity, the quantum state can be either localized or delocalized in the potential. We formulate a classical model of this phenomenon and compare it to quantum simulations done for a self consistent potential given by the Gross-Pitaevskii Equation.
description: 5 Pages, 3 figures
Spectroelectrochemical Investigation of the Charge Carrier Kinetics of Gold-Decorated Cadmium Chalcogenide Nanorods
Creators: name: Miethe, Jan F.
name: Lübkemann, Franziska
name: Poppe, Jan
name: Steinbach, Frank
name: Dorfs, Dirk
name: Bigall, Nadja C.
Publisher: name: Weinheim : Wiley-VCH
Year: 2017
Subjects: subject: charge-transfer kinetics
subject: gold
subject: intensity-modulated photocurrent spectroscopy
subject: nanorods
subject: submonolayers
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The interfacial transfer of charge carriers across the semiconductor nanoparticle/electrolyte boundary is an elementary process for applications such as photoelectrochemical sensing and photocatalysis. This mechanism is investigated for systems based on complex shaped semiconductor and metal-semiconductor nano-heteroparticles. In the present work the influence of the presence of a CdSe domain within the CdS nanorod as well as the influence of gold domain decoration is investigated spectroelectrochemically. Therefore, the mentioned nanoparticles are linked to transparent indium tin oxide (ITO) glass slides via (3-mercaptopropyl)trimethoxysilane (MPTMS). This preparation yields sub-monolayers of the particles. External photocurrent quantum efficiency spectra are measured in the range from λ=350–650 nm. Intensity-modulated photocurrent spectroscopy (IMPS) and electrochemical impedance spectroscopy (EIS) measurements are applied to the samples in order to reveal and explain the differences of the electrochemical kinetics between the four different particle types (CdS, CdSe/CdS, CdS−Au, and CdSe/CdS−Au nanorods). We demonstrate that the presence of gold domains affects the carrier dynamics of various involved processes. An equivalent circuit model is derived and fitted to the impedance data to explain changes of the kinetics in the system.
Field-angle dependence of the quasiparticle scattering inside a vortex core in unconventional superconductors
Creators: name: Higashi, Yoichi
name: Nagai, Yuki
name: Machida, Masahiko
name: Hayashi, Nobuhiko
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically investigate the quasiparticle scattering rate $\varGamma$ inside a vortex core in the existence of non-magnetic impurities distributed randomly in a superconductor. We show that the dependence of $\varGamma$ on the magnetic field direction is sensitive to the sign of the pair potential. The behavior of $\varGamma$ is quite different between an s-wave and a d-wave pair potential, where these are assumed to have the same amplitude anisotropy, but a sign change only for the d-wave one. It is suggested that measurements of the microwave surface impedance with changing applied-field directions would be used for the phase-sensitive identification of pairing symmetry.
description: 5 pages, 6 figures; Proc. of ISS2010
Paratimea aurantiaca Morrow & Cárdenas & Boury-Esnault & Picton & Mccormack & Soest & Collins & Redmond & Maggs & Sigwart & Allcock 2019, SP. NOV.
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 aurantiaca

description: PARATIMEA AURANTIACA MORROW SP. NOV.
(FIG. 5A–F)
Material examined: Holotype BELUM Mc 5226, Abercastle, North Pembrokeshire, Wales, 52°00.069′N, 5°05.655′W, 27.6 m, 29 July 2009, coll. B. Picton.
Paratype BELUM Mc 2937, Duncan’s Bo, Rathlin Island, Northern Ireland, UK, 55°18.7183′ N, 6°15.1238′W, 32 m, 6 September 2005, coll. B. Picton.
L S I D: u r n: l s i d: z o o b a n k. o r g: a c t: 8 7 4 7 0 E 8 9 - 177F-4350-B8C2-C0CAAFED34C7
Description: Outer morphology: Thinly encrusting, with a hispid surface (Fig. 5E).
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 49
Cryoaerogels and Cryohydrogels as Efficient Electrocatalysts
Creators: name: Müller, Dennis
name: Zámbó, Dániel
name: Dorfs, Dirk
name: Bigall, Nadja C.
Publisher: name: Weinheim : Wiley-VCH
Year: 2021
Subjects: subject: aerogel coatings
subject: cryoaerogels
subject: cryohydrogels
subject: electrocatalysis
subject: ethanol oxidation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Additive-free cryoaerogel coatings from noble metal nanoparticles are prepared and electrochemically investigated. By using liquid nitrogen or isopentane as cooling medium, two different superstructures are created for each type of noble metal nanoparticle. These materials (made from the same amount of particles) have superior morphological and catalytic properties as compared to simply immobilized, densely packed nanoparticles. The morphology of all materials is investigated with scanning electron microscopy (SEM). Electrochemically active surface areas (ECSAs) are calculated from cyclic voltammetry measurements. The catalytic activity is studied for the ethanol oxidation reaction (EOR). Both are found to be increased for superstructured materials prepared by cryoaerogelation. Furthermore, cryoaerogels with cellular to dendritic structure that arise from freezing with isopentane show the best catalytic performance and highest ECSA. Moreover, as a new class of materials, cryohydrogels are created for the first time by thawing flash-frozen nanoparticle solutions. Structure and morphology of these materials match with the corresponding types of cryoaerogels and are confirmed via SEM. Even the catalytic activity in EOR is in accordance with the results from cryoaerogel coatings. As a proof of concept, this approach offers a novel platform towards the easier and faster production of cryogelated materials for wet-chemical applications.
title: 800 Jahre Deutscher Orden. 30. Juni - 30. September 1990. Eine Ausstellung des Germanischen Nationalmuseums in Zusammenarbeit mit der Internationalen Historischen Kommission zur Erforschung des Deutschen Ordens
Creators: name: Rechter, Gerhard
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Nuclear superfluidity in isospin asymmetric matter within the Skyrme model
Creators: name: Aguirre, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The phase diagram of the superfluid phase coupled to spin singlet (S=0) and isospin triplet (T=1) states in infinite nuclear matter is analyzed within the nonrelativistic Skyrme model. We use an approach that allows a unified and consistent treatment of the particle-hole and particle-particle channels. The gap equation is solved for the full range of accessible densities, isospin asymmetries, and temperatures. The characteristic features of each of the components Tz=0, +1, -1 are emphasized. The search for signatures of a BCS-BEC crossover yields negative results within the scheme proposed.
description: 16 pages, 8 figures
Twistor lines on cubic surfaces
Creators: name: Armstrong, John
name: Povero, Massimiliano
name: Salamon, Simon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 53C28, 14N10, 53A30

description: It is shown that there exist non-singular cubic surfaces in CP^3 containing 5 twistor lines. This is the maximum number of twistor fibres that a non-singular cubic can contain. Cubic surfaces in CP^3 with 5 twistor lines are classified up to transformations preserving the conformal structure of S^4.
description: 22 pages, 6 figs, conf. Geometria delle Varieta' Algebriche, Turin, 2012
Tungsten Nanoparticles Accelerate Polysulfides Conversion: A Viable Route toward Stable Room-Temperature Sodium–Sulfur Batteries
Creators: name: Liu, Yuping
name: Ma, Shuangying
name: Rosebrock, Marina
name: Rusch, Pascal
name: Barnscheidt, Yvo
name: Wu, Chuanqiang
name: Nan, Pengfei
name: Bettels, Frederik
name: Lin, Zhihua
name: Li, Taoran
name: Ge, Binghui
name: Bigall, Nadja C.
name: Pfnür, Herbert
name: Ding, Fei
name: Zhang, Chaofeng
name: Zhang, Lin
Publisher: name: Weinheim : Wiley-VCH
Year: 2022
Subjects: subject: electrocatalyst
subject: kinetics
subject: large-scale energy storage
subject: room-temperature sodium-sulfur batteries
subject: tungsten nanoparticles
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Room-temperature sodium–sulfur (RT Na–S) batteries are arousing great interest in recent years. Their practical applications, however, are hindered by several intrinsic problems, such as the sluggish kinetic, shuttle effect, and the incomplete conversion of sodium polysulfides (NaPSs). Here a sulfur host material that is based on tungsten nanoparticles embedded in nitrogen-doped graphene is reported. The incorporation of tungsten nanoparticles significantly accelerates the polysulfides conversion (especially the reduction of Na2S4 to Na2S, which contributes to 75% of the full capacity) and completely suppresses the shuttle effect, en route to a fully reversible reaction of NaPSs. With a host weight ratio of only 9.1% (about 3–6 times lower than that in recent reports), the cathode shows unprecedented electrochemical performances even at high sulfur mass loadings. The experimental findings, which are corroborated by the first-principles calculations, highlight the so far unexplored role of tungsten nanoparticles in sulfur hosts, thus pointing to a viable route toward stable Na–S batteries at room temperatures.
Real-Time Maps of Fluid Flow Fields in Porous Biomaterials
Creators: name: Mack, Julia J.
name: Youssef, Khalid
name: Noel, Onika D. V.
name: Lake, Michael
name: Wu, Ashley
name: Iruela-Arispe, M. Luisa
name: Bouchard, Louis-S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Mechanical forces such as fluid shear have been shown to enhance cell growth and differentiation, but knowledge of their mechanistic effect on cells is limited because the local flow patterns and associated metrics are not precisely known. Here we present real-time, noninvasive measures of local hydrodynamics in 3D biomaterials based on nuclear magnetic resonance. Microflow maps were further used to derive pressure, shear and fluid permeability fields. Finally, remodeling of collagen gels in response to precise fluid flow parameters was correlated with structural changes. It is anticipated that accurate flow maps within 3D matrices will be a critical step towards understanding cell behavior in response to controlled flow dynamics.
description: 23 pages, 4 figures
Interpreting Text Classification with Human-Understandable Counterfactual Instances
Creators: name: Li, Teng
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2022
Subjects: subject: Artificial Inteligence
subject: Interpretability
subject: Machine Learning
subject: Natural Language Processing
subject: AI
subject: NLP
subject: Künstliche Intelligenz, Interpretierbarkeit, Maschinelles Lernen, Verarbeitung natürlicher Sprache
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: As the omnipresent machine learning models play increasingly important roles in our society, powerful interpretation tools to uncover their black boxes are needed. On the other hand, proven by psychological study, we humans are more likely to learn new concepts presented with contrastive instances. Therefore, interpreting ML models using the contrast between the original data instance and its counterfactuals has become a popular problem. Traditional counterfactual interpretation approaches tend to generate counterfactuals faithful to the ML model. However, they have little or no constraint on the meaningfulness of generated counterfactuals. This thesis proposes an approach generating a meaningful counterfactual interpretation of text classification models constrained with cosine similarity and POS (part-of-speech) properties of tokens. In this thesis, I use the text CNN model based on Kims Cnn\cite{KimsCnn} with fine-tuned Word2Vec embedding layer as the model to interpret. Then for the counterfactual generation, I leverage token-level HotFlip\cite{hotflip} and replace tokens under several constraints. Lastly, I will present that my approach results in more meaningful counterfactual interpretations compared with the vanilla HotFlip approaches using several examples.
A Reverse Shock in GRB 130427A
Creators: name: Laskar, T.
name: Berger, E.
name: Zauderer, B. A.
name: Margutti, R.
name: Soderberg, A. M.
name: Chakraborti, S.
name: Lunnan, R.
name: Chornock, R.
name: Chandra, P.
name: Ray, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present extensive radio and millimeter observations of the unusually bright GRB 130427A at z=0.340, spanning 0.67 to 12 days after the burst. Taken in conjunction with detailed multi-band UV, optical, NIR, and X-ray observations we find that the broad-band afterglow emission is composed of distinct reverse shock and forward shock contributions. The reverse shock emission dominates in the radio/millimeter and at <0.1 days in the UV/optical/NIR, while the forward shock emission dominates in the X-rays and at >0.1 days in the UV/optical/NIR. We further find that the optical and X-ray data require a Wind circumburst environment, pointing to a massive star progenitor. Using the combined forward and reverse shock emission we find that the parameters of the burst are an isotropic kinetic energy of E_Kiso~2e53 erg, a mass loss rate of Mdot~3e-8 Msun/yr (for a wind velocity of 1,000 km/s), and a Lorentz factor at the deceleration time of Gamma(200s)~130. Due to the low density and large isotropic energy, the absence of a jet break to ~15 days places only a weak constraint on the opening angle of theta_j>2.5 deg, and therefore a total energy of E_gamma+E_K>1.2e51 erg, similar to other GRBs. The reverse shock emission is detectable in this burst due to the low circumburst density, which leads to a slow cooling shock. We speculate that this is a required property for the detectability of reverse shocks in the radio and millimeter bands. Following on GRB 130427A as a benchmark event, observations of future GRBs with the exquisite sensitivity of VLA and ALMA, coupled with detailed modeling of the reverse and forward shock contributions will test this hypothesis.
description: 24 pages, 2 figures, submitted to ApJ
Multi-Objective Optimization of an Aerodynamic Feeding System Using Genetic Algorithm
Creators: name: Busch, Jan
name: Nyhuis, Peter
Publisher: name: Leibniz Universität Hannover
Year: 2015
Subjects: subject: Aerodynamic feeding system
subject: genetic algorithm
subject: multi-objective optimization
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Considering the challenges of short product life cycles and growing variant diversity, cost minimization and manufacturing flexibility increasingly gain importance to maintain a competitive edge in today’s global and dynamic markets. In this context, an aerodynamic part feeding system for high-speed industrial assembly applications has been developed at the Institute of Production Systems and Logistics (IFA), Leibniz Universitaet Hannover. The aerodynamic part feeding system outperforms conventional systems with respect to its process safety, reliability, and operating speed. In this paper, a multi-objective optimisation of the aerodynamic feeding system regarding the orientation rate, the feeding velocity, and the required nozzle pressure is presented.
Herausforderungen bei EMV-Messungen von drahtlosen Ladesystemen (WPT-Systeme) für Elektrofahrzeuge im Bereich 9 kHz bis 30 MHz
Creators: name: Ziegler, Christof
name: Siebert, Kerstin
name: Weber, Stefan
name: Bärenfänger, Jörg
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Filterung
subject: Wechselrichter
subject: Grenzwert
subject: Sekundärseite
subject: magnetische Feldstärke
subject: Elektrofahrzeug
subject: Frequenzbereich
subject: Absorptionstechnik
subject: Resonanzkreis
subject: Primärseite
subject: Fahrzeugaufbau
subject: EMV-Messung
subject: Messdynamik
subject: Messaufbau
subject: Ferritabsorber
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Die EMV-Charakterisierung von WPT-Systemen stellt in vielerlei Hinsicht Herausforderungen bei der Messung sowohl der leitungs- als auch der feldgebundenen Störaussendung dar. Bereits die diskutierten Grenzwerte der magnetischen Störfeldstärke im Bereich 9 kHz bis 30 MHz implizieren eine Messdynamik von über 100 dB. Der Vergleich des Komponentenaufbaus mit zentrischer Spulenpositionierung und der analog zum Fahrzeugaufbau exzentrisch positionierten Spulen zeigt eine Abweichung von 2 ... 4 dB im unteren Frequenzbereich nur aufgrund der Spulenposition. Werden auch noch andere Parameter, wie z.B. eine Variation des Messaufbaus oder verschiedene Absorberhallentechniken (mit oder ohne Ferritabsorber) berücksichtigt, können diese Abweichungen sich durchaus auf über 15 dB addieren. Die Messung des Störstromes auf der Primär- und Sekundärseite zeigt eine nur unzureichende Filterwirkung durch die Resonanzkreise der WPT-Spulen. Aufgrund der niedrigen Grenzwerte bei den Harmonischen der Nutzfrequenz ist eine Filterung des Signals am Ausgang des Wechselrichters notwendig. Die Messungen der vom Wechselrichter getriebenen Gleichtaktströme zeigen auch ein hohes leitungsgebundenes Störpotential für die Sekundärseite und hohe Anforderungen an entsprechende Filter.
Superconductor-Nanowire Devices from Tunneling to the Multichannel Regime: Zero-Bias Oscillations and Magnetoconductance Crossover
Creators: name: Churchill, H. O. H.
name: Fatemi, V.
name: Grove-Rasmussen, K.
name: Deng, M. T.
name: Caroff, P.
name: Xu, H. Q.
name: Marcus, C. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present transport measurements in superconductor-nanowire devices with a gated constriction forming a quantum point contact. Zero-bias features in tunneling spectroscopy appear at finite magnetic fields, and oscillate in amplitude and split away from zero bias as a function of magnetic field and gate voltage. A crossover in magnetoconductance is observed: Magnetic fields above ~ 0.5 T enhance conductance in the low-conductance (tunneling) regime but suppress conductance in the high-conductance (multichannel) regime. We consider these results in the context of Majorana zero modes as well as alternatives, including Kondo effect and analogs of 0.7 structure in a disordered nanowire.
description: Supplemental Material here: https://dl.dropbox.com/u/1742676/Churchill_Supplemental.pdf
Auf dem Bibliothekartag im Braunhemd, in der Bibliotheksleitung unauffällig? Kirchner und die UB München im Nationalsozialismus
Creators: name: Lütjen, Andreas
Publisher: name: Wiesbaden : Harrassowitz Verlag
Year: 2009
Subjects: subject: Ludwig-Maximilians-Universität München. Universitätsbibliothek
subject: München
subject: Bibliotheksdirektor
subject: Nationalsozialismus
subject: Universitätsbibliothek
subject: Politische Betätigung
subject: Bibliothekar
subject: Drittes Reich
subject: Hochschulbibliothek
subject: Dewey Decimal Classification::900 | Geschichte und Geografie::940 | Geschichte Europas
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: Die historische Erforschung wissenschaftlicher Bibliothekare während der Zeit des Nationalsozialismus setzte vergleichsweise spät ein und ist bisher noch nicht abschließend erfolgt. Im vorliegenden Beitrag wird das bibliothekarische Handeln Dr. Joachim Kirchners (1890–1978) untersucht, der sich 1933 als Redner auf dem Bibliothekartag in Darmstadt vehement für »Bücherverbrennungen marxistischer, kommunistischer und jüdischer Autoren« aussprach, jedoch später als Direktor der Universitätsbibliothek München (1941–1945) in Einzelfällen für Verfolgte des NS-Regimes eintrat sowie durch umfangreiche Auslagerungen große Teile des Bibliotheksbestandes vor der drohenden Vernichtung im Bombenkrieg bewahrte. Am Beispiel Kirchners wird der Handlungsspielraum ausgelotet, der sich zwischen 1933 und 1945 im bibliothekarischen Berufsalltag ergab.
description: Research on scientific librarians during the time of National Socialism has been started late and did not come yet to an end. This article deals with the behaviour of Joachim Kirchner (1890–1978), an important librarian of his time. On the one hand he gave an enthusiastic speech at the Library Conference in Darmstadt in 1933 supporting the burning of books written by Marxists, Communists and Jews. On the other hand as director of the Library of the University of Munich (1941–1945) he supported persons prosecuted by the Nazi regime working in the library. In addition he preserved many books from the bombardment by removing them from the city of Munich to the countryside. Joachim Kirchner is an outstanding example how inconsistent a librarian could act in different situations during the Third Reich.
Pareto-Optimierung von reflexionsarmen Sternpunkten in automotiven Bussystemen
Creators: name: Stieler, Alexander
name: Hampe, Matthias
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Pareto-Optimierung
subject: Bussystem
subject: Sternpunkt
subject: Trage
subject: Aktor
subject: passives Bauelement
subject: Messaufbau
subject: Signalintegrität
subject: Zielgröße
subject: Leitungsparameter
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: In dieser Arbeit wird die vorteilhafte Methodik der Pareto-Optimierung dazu genutzt, Sternpunkte in automotiven Bussystemen reflexionsarm auszulegen. Letztere finden in der Praxis breite Verwendung, tragen sie doch zur kostengünstigen Vernetzung der unterschiedlichsten Sensoren und Aktoren bei. Insbesondere wird ein seit längerer Zeit bekanntes Vorgehen aufgegriffen, bei dem die Signalintegrität durch das Einfügen von passiven Bauelementen deutlich verbessert wird. Vorrangiges Ziel dieser Arbeit ist die Ableitung der Pareto-effizienten Bauteilrealisierungen, die im Hinblick auf die zu definierenden Zielgrößen optimal sind. Die Simulation des betrachteten Testnetzwerks basiert dabei auf Leitungsparametern, die an realen Leitungen mittels eines neuartigen Messaufbaus als Funktion der Frequenz hochgenau bestimmt wurden. Abschließend werden alle relevanten Zeitsignale auch rein analytisch berechnet, wodurch sich die Pareto-Optimierung selbst sehr vorteilhaft implementieren lässt.
Rumex patientia L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: R. Patientia L. Cat. 310. l: Les Marecottes (Wurgler). - 2: Mayen ä Loton und Creux du Loup ob Branson (F.); Saillon (Garns); Tourbillon und Valere bei Sitten (Schinz).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Gerhart Hauptmanns »Märchen« (1941) im Kontext der nationalsozialistischen ›Euthanasie‹. Eine Untersuchung aufgrund des Nachlasses
Creators: name: Tempel, Bernhard
Publisher: name: Tübingen : Niemeyer
Year: 2002
Subjects: subject: Hauptmann, Gerhart / Märchen
subject: Eugenik
subject: NS-Euthanasie
subject: Motiv
subject: Dewey Decimal Classification::800 | Literatur, Rhetorik, Literaturwissenschaft::830 | Deutsche Literatur

description: Aufzeichnungen in Hauptmanns unveröffentlichtem Tagebuch belegen, daß die NS-'Euthanasie' auslösendes Moment für die Niederschrift seines 1941 entstandenen und veröffentlichten 'Märchens' war und als stofflicher Vorwurf verar­bei­tet werden sollte. Davon ausgehend, rekonstruiert der Aufsatz Hauptmanns Verhältnis zur Rassen­hygiene (Eugenik), mit der er durch seinen Jugendfreund Alfred Ploetz früh in Berührung kam (einen Nie­der­schlag findet dies bereits 1889 im sozialen Drama 'Vor Sonnenaufgang'), und seine erstaunlich intensive, aber weitgehend im privaten verbleibende Auseinandersetzung mit der Thematik in den Tage- und Notizbüchern nach 1933, vor allem anläßlich der eugenischen Gesetzgebung des NS-Staats. Hauptmanns Sicht ist bemerkenswert kritisch, doch die Gründe für seine Kritik sind vor allem in seinem Selbstverständnis als Künstler begründet, und so erstaunt es nicht, daß sich auch das Märchen ansatzweise vor diesem Hintergrund erschließen läßt. Die Bezüge auf die NS-'Euthanasie' sind zwar nahezu getilgt, aber mit dem nötigen Hintergrundwissen offensichtlich.
X-ray spectral analysis of the low-luminosity active galactic nucleus NGC 7213 using long XMM-Newton observations
Creators: name: Emmanoulopoulos, D.
name: Papadakis, I. E.
name: Nicastro, F.
name: McHardy, I. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: J.2
subject: 85-02

description: We present the X-ray spectral results from the longest X-ray multi-mirror mission-Newton observation, 133 ks, of the low luminosity active galactic nucleus NGC 7213. The hardness ratio analysis of the X-ray light curves discloses a rather constant X-ray spectral shape, at least for the observed exposure time, enabling us to perform X-ray spectral studies using the total observed spectrum. Apart from a neutral Fe Kαemission line, we also detect narrow emission lines from the ionised iron species, Fe xxv and Fe xxvi. Our analysis suggests that the neutral Fe Kαoriginates from a Compton-thin reflector, while the gas responsible for the high ionisation lines is collisionally excited. The overall spectrum, in the 0.3-10 keV energy band, registered by the European Photon Imaging Camera, can be modelled by a power-law component (with a slope of Γ\simeq1.9) plus two thermal components at 0.36 and 8.84 keV. The low-energy thermal component is entirely consistent with the X-ray spectral data obtained by the Reflection Grating Spectrometer between 0.35-1.8 keV.
description: Accepted for publication in MNRAS. The paper is 12 pages long and contains 10 figures and 2 tables. Analysis of different source from arXiv:1104.0044
Die Nutzung von Blühstreifen durch Vögel während der Brutzeit
Creators: name: Wix, Nana
name: Reich, Michael
Publisher: name: Hannover : Institut für Umweltplanung, Leibniz Universität Hannover
Year: 2018
Subjects: subject: Vögel
subject: Brüten
subject: Agrarlandschaft
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::590 | Tiere (Zoologie)

description: Die Lebensraumbedingungen für Vögel der Agrarlandschaft haben sich in den letzten Jahrzehnten dramatisch verschlechtert. Die Anlage von Blühstreifen wird als eine Möglichkeit gesehen, dieser Entwicklung entgegen zu wirken, wobei deren Effizienz bislang wenig erforscht ist. Ziel dieser Arbeit war es zu untersuchen, wie Blühstreifen ausgestaltet werden müssen, um Vögel der Agrarlandschaft während der Brutzeit bestmöglich zu fördern. Der Fokus lag dabei auf dem Einfluss der Breite und der Standzeit von Blühstreifen. Mittels Transektkartierungen wurden 2013 und 2014 verschiedene Blühstreifentypen untersucht und mit Säumen als Referenzflächen verglichen. Insgesamt konnten 23 Vogelarten auf den Blühstreifentypen nachgewiesen werden, 12 davon ausschließlich dort. Auf den Säumen konnten 12 Arten beobachtet werden, von denen bis auf eine Art auch alle auf den Blühstreifentypen beobachtet werden konnten. Die Ergebnisse zeigen, dass Blühstreifen zur Aufwertung der intensiv genutzten Agrarlandschaft beitragen. Aufgrund der Blühstreifen-Aussaat Ende April/ Mai stehen im Frühjahr nur die Blühstreifen im 2. Standjahr zur Verfügung. Das kontinuierliche Vorhandensein ist der entscheidende Vorteil von Säumen. Trotz des rotierenden Prinzips der Blühstreifen sind diese aber wertvoller als nur mäßig ausgeprägte Säume. Blühstreifen verschiedener Altersstadien erzeugen vielförmige Lebensraumstrukturen, so dass in einem Landschaftsausschnitt ein Mosaik unterschiedlicher Standzeiten angelegt werden sollte.
Die Nutzung von Blühstreifen durch Vögel im Herbst und Winter
Creators: name: Wix, Nana
name: Reich, Michael
Publisher: name: Hannover : Institut für Umweltplanung, Leibniz Universität Hannover
Year: 2018
Subjects: subject: Vögel
subject: Agrarlandschaft
subject: Jahreszeit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::590 | Tiere (Zoologie)

description: Die zu beobachtenden Bestandsrückgänge bei den Vogelarten der Agrarlandschaft sind auch auf Faktoren außerhalb des Brutzeitraumes zurückzuführen. Allerdings liegen zu diesem Aspekt und insbesondere zur Rolle der Blühstreifen im Winterhalbjahr nur wenige Studien vor. Wir haben deshalb in zwei Wintern (2012-14) und einem Herbst (2013) die Vogelwelt auf fünf verschiedenen Blühstreifentypen, die sich hinsichtlich ihrer angrenzenden Strukturen und Breite unterscheiden, mittels Linien-Transektkartierung untersucht. Zum Vergleich wurden herkömmliche Feldsäume mit der gleichen Methode untersucht. Insgesamt konnten 21 Vogelarten nachgewiesen werden. Alle wurden auf Blühstreifen, aber nur sechs auf den Feldsäumen erfasst. Die meisten Vogelarten konnten auf den Blühstreifen auch häufiger beobachtet werden als auf den Säumen. Zudem konnten auf den Blühstreifen eine in Niedersachsen stark gefährdete, zwei gefährdete und fünf potenziell gefährdete Arten nachgewiesen werden, auf den Säumen hingegen nur eine gefährdete und drei potenziell gefährdete Arten. Blühstreifen können, sofern gewisse Aspekte berücksichtig werden, einen wichtigen Beitrag zur Reduktion des Nahrungs- und Deckungsmangels in der ausgeräumten Agrarlandschaft auch bis zum Ende des Winters hin leisten. Der naturschutzfachliche Wert von Blühstreifen im Winterhalbjahr ist dann über dem von Feldsäumen und Äckern einzuordnen.
Solar H-alpha Oscillations from Intensity and Doppler Observations
Creators: name: Jackiewicz, J.
name: Balasubramaniam, K. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Chromospheric wave activity around flares and filaments has been a research focus for years, and could provide indirect measurements of local conditions that are not otherwise accessible. One interesting observed phenomenon is oscillations in filaments, activated by distant flares and the large-scale waves they produce. Characteristics of these oscillations, such as periods, amplitudes, and lifetimes, can provide unique information about the filament. We measure oscillation properties in flares and filaments from H-alpha chromospheric data using a new method that provides important spatial and frequency content of the dynamics. We apply the method to two flare events where filaments are observed to oscillate and determine their properties. We find strong oscillatory signal in flaring active regions in the chromosphere over a range of frequencies. Two filaments are found to oscillate without any detectable chromospheric wave acting as an activation mechanism. We find that filaments oscillate with periods of tens of minutes, but variations are significant at small spatial scales along the filamentary region. The results suggest there is a frequency dependence of the oscillation amplitude, as well as a spatial dependence along single filaments that is more difficult to quantify. It also appears that the strength of the oscillations do not necessarily depend on the strength of the trigger, although there are other possible effects that make this conclusion preliminary. Applications of this technique to other events and different data sets will provide important new insights into the local energy densities and magnetic fields associated with dynamic chromospheric structures.
description: Accepted by Astrophysical Journal. To view movies, visit http://astronomy.nmsu.edu/jasonj/Halpha_movies/
JURIDICAL REVIEW OF PENAL POLICY IN HANDLING NARCOTICS IN INDONESIA
Creators: name: JAMALUDIN FARTI
name: YUSRIYADI
name: NUR ROCHAETI
Publisher: name: Zenodo
Year: 2023
Subjects: udicial Review, Legal Policy, Penal Policy, Criminal Law, Narcotics Handling.

description: Abstract
This study aims to analyze the penal policy in tackling narcotics in Indonesia. The method used is juridical normative. The results showed that efforts to tackle criminal acts of narcotics abuse have two ways, namely using non-penal means or preventive measures (preventing before the crime occurs) and penal measures or repressive actions (after the crime has occurred). Repressive measures are all actions taken by law enforcement officials in response to the occurrence of a crime or criminal act, including repressive measures are investigations, prosecutions, and even crimes. Indonesia in its efforts to tackle criminal acts of narcotics abuse has formed a legal product to deal with this problem, including the issuance of Law Number 22 of 1997 concerning Narcotics which has been amended by Law Number 35 of 2009 concerning Narcotics. Apart from these laws, there are also other regulations, both in the form of ministerial regulations, regulations from the head of the BNN, as well as joint decrees between the minister, the head of the BNN and the head of the Indonesian National Police.
title: Career, capitals and consumption:  an analysis of the impacts of narrowly-defined occupational  membership on household consumption,  from a human capital and occupational field perspective
Creators: name: Pavlisa, Karina
Publisher: name: University of Reading
Year: 2019

description: This thesis explores the relationship between distinctive, narrowly-defined, occupational
 groups and their consumption priorities, in relation to goods that represent strategic
 investments to underpin capitals.
title: Analysis of Size Distribution, Chemical Composition, and Optical Properties of Mineral Dust Particles from Dry Deposition Measurement in Tenerife: Determined by Single-Particle Characterization
Creators: name: Waza, Andebo
name: Schneiders, Kilian
name: Heuser, Johannes
name: Kandler, Konrad
Publisher: name: MDPI
Year: 2023

description: In this paper, individual particle analysis by automated scanning electron microscopy (SEM) coupled with energy-dispersive X-ray (EDX) was used to assess the size-resolved information of composition, size distribution, complex refractive index, and mixing state of mineral dust aerosol particles collected using different passive and active samplers. In the study, over 120,000 particles from 53 samples were analyzed. Results show that dust particles are the dominating mineral particle type during this campaign, comprising different classes of silicates, Si-rich (quartz-like), Ca-rich (calcite-like), CaMg-rich (dolomite-like), and CaS-rich (gypsum-like). The results also show that there is no significant difference in composition between suspended and deposited dust particles. By using the particle composition, the size-resolved complex refractive index of dust particles was calculated. The real part of the refractive index varied between 1.71 and 1.53 for wavelengths in the range of 370 to 950 nm. The imaginary part of the refractive index, determined mostly by iron oxide, varied between 3.28×10⁻⁴ and 7.11×10⁻⁵ for wavelengths ranging from 250 nm to 1640 nm. In addition, the refractive index values showed a slight decrease with increasing particle size. We also analyzed the potential for buffering of the acid mobilization of iron by other dust compounds. For particles which contain both iron (Fe) and (unprocessed) calcium (Ca), acids that are able to dissolve insoluble Fe particles can react with the Ca particles before reacting with Fe, but eventually, with longer processing time, the Fe particles could be processed. By analyzing the ratio of sulfate mass to the total aerosol mass of individual particles, the mixing state of sulfate particles to the total dust particles was investigated. The analysis showed that the finer dust particles were associated with higher content of sulfate, while the coarse dust particles correspond to lower sulfate contents, revealing that only fine mode sulfate is more internally mixed with mineral dust aerosol particles.
Optimierung der virtuellen EMV Absicherung durch Erstellung von leitungsgeführten Störquellenmodellen aus Messungen
Creators: name: Hein, Janne
name: Hippeli, Johannes
name: Eibert, Thomas F.
Publisher: name: Frankfurt/Main : mesago
Year: 2018
Subjects: subject: Emissionsmessung
subject: Störquelle
subject: Messtechnik
subject: Fahrzeugkomponente
subject: Anwendungsbeispiel
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Es wird eine Methodik zur Entwicklung und Verwendung von leitungsgeführten Störquellenmodellen auf Komponentenebene präsentiert, welche für die virtuelle EMV Absicherung auf Komponenten- und Fahrzeugebene eingesetzt werden kann. Bisher sind Störquellenmodelle für Fahrzeugkomponenten kaum verfügbar. Ohne komponentenspezifische Modelle können nur vergleichende Analysen durchgeführt werden oder Tendenzen bestimmt werden. Das Ziel ist eine Methodik, mit deren Anwendung für jede E/E-Komponente mit Hilfe des Normaufbaus der leitungsgeführten Emissionsmessung ein leitungsgeführtes Störmodell für virtuelle EMV Analysen generiert werden kann. Für welche Art von Störungen die Methodik anwendbar ist und welche messtechnischen Voraussetzungen dafür benötigt werden, wird diskutiert. Ein konkretes Anwendungsbeispiel wird mit Hilfe von Simulationen untersucht und die Vorteile der Verwendung von Störquellenmodellen für die EMV Absicherung werden präsentiert.
Flux Enhancement of Slow-moving Particles by Sun or Jupiter: Can they be Detected on Earth?
Creators: name: Patla, Bijunath R.
name: Nemiroff, Robert J.
name: Hoffmann, Dieter H. H.
name: Zioutas, Konstantin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Slow-moving particles capable of interacting solely with gravity might be detected on Earth as a result of the gravitational lensing induced focusing action of the Sun. The deflection experienced by these particles are inversely proportional to the square of their velocities and as a result their focal lengths will be shorter. We investigate the velocity dispersion of these slow-moving particles, originating from distant point-like sources, for imposing upper and lower bounds on the velocities of such particles in order for them to be focused onto Earth. We find that fluxes of such slow-moving and non-interacting particles must have speeds between ~0.01 and ~0.14 times the speed of light, $c$. Particles with speeds less than ~0.01 c will undergo way too much deflection to be focused, although such individual particles could be detected. At the caustics, the magnification factor could be as high as ~10E+6. We impose lensing constraints on the mass of these particles in order for them to be detected with large flux enhancements to be greater than E-9 eV. An approximate mass density profile for Jupiter is used to constrain particle velocities for lensing by Jupiter. We show that Jupiter could potentially focus particles with speeds as low as ~0.001c, which the Sun cannot. As a special case, the perfect alignment of the planet Jupiter with the Sun is also considered.
description: 20 Pages, 5 figures
title: Italienische Landschaft mit Schloß. Ein wiederentdecktes Gemälde von Johann Christian Reinhart in der Ausstellung »Facetten bürgerlicher Kunst und Kultur. Vom Klassizismus zur Epoche der Weltausstellungen«
Creators: name: Peters, Ursula
Publisher: name: University Library Heidelberg
Year: 2016

description: [nicht vorhanden / not available]