cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-force via energy-momentum and angular momentum balance equations
Creators: name: Yaremko, Yurij
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The radiation reaction for a point-like charge coupled to a massive scalar field is considered. The retarded Green's function associated with the Klein-Gordon wave equation has support not only on the future light cone of the emission point (direct part), but extends inside the light cone as well (tail part). Dirac's scheme of decomposition of the retarded electromagnetic field into the "mean of the advanced and retarded field" and the "radiation" field is adapted to theories where Green's function consists of the direct and the tail parts. The Harish-Chandra equation of motion of radiating scalar charge under the influence of an external force is obtained. This equation includes effect of particle's own field. The self force produces a time-changing inertial mass.
description: 25 pages, 7 figures. arXiv admin note: substantial text overlap with arXiv:0907.3071
Formality conjecture for K3 surfaces
Creators: name: Budur, Nero
name: Zhang, Ziyu
Publisher: name: Cambridge : Cambridge Univ. Press
Year: 2019
Subjects: subject: K3 surfaces
subject: stable sheaves
subject: formality
subject: DG algebras
subject: DG enhancements
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: We give a proof of the formality conjecture of Kaledin and Lehn: on a complex projective K3 surface, the differential graded (DG) algebra RHom*(F; F) is formal for any sheaf F polystable with respect to an ample line bundle. Our main tool is the uniqueness of the DG enhancement of the bounded derived category of coherent sheaves. We also extend the formality result to derived objects that are polystable with respect to a generic Bridgeland stability condition.
Solid-state NMR spectroscopy for characterization of RNA and RNP complexes
Creators: name: Sreemantula, Arun Kumar
name: Marchanka, Alexander
Publisher: name: London : Portland Press
Year: 2020
Subjects: subject: method development
subject: RNA structure
subject: solid-state NMR
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Ribonucleic acids are driving a multitude of biological processes where they act alone or in complex with proteins (ribonucleoproteins, RNP). To understand these processes both structural and mechanistic information about RNA is necessary. Due to their conformational plasticity RNA pose a challenge for mainstream structural biology methods. Solid-state NMR (ssNMR) spectroscopy is an emerging technique that can be applied to biomolecular complexes of any size in close-to-native conditions. This review outlines recent methodological developments in ssNMR for structural characterization of RNA and protein–RNA complexes and provides relevant examples.
Transforming Monitoring Structures with Resilient Encoders. Application to Repeated Games
Creators: name: Treust, Maël Le
name: Lasaulce, Samson
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: An important feature of a dynamic game is its monitoring structure namely, what the players effectively see from the played actions. We consider games with arbitrary monitoring structures. One of the purposes of this paper is to know to what extent an encoder, who perfectly observes the played actions and sends a complementary public signal to the players, can establish perfect monitoring for all the players. To reach this goal, the main technical problem to be solved at the encoder is to design a source encoder which compresses the action profile in the most concise manner possible. A special feature of this encoder is that the multi-dimensional signal (namely, the action profiles) to be encoded is assumed to comprise a component whose probability distribution is not known to the encoder and the decoder has a side information (the private signals received by the players when the encoder is off). This new framework appears to be both of game-theoretical and information-theoretical interest. In particular, it is useful for designing certain types of encoders that are resilient to single deviations and provide an equilibrium utility region in the proposed setting; it provides a new type of constraints to compress an information source (i.e., a random variable). Regarding the first aspect, we apply the derived result to the repeated prisoner's dilemma.
description: Springer, Dynamic Games and Applications, 2012
Exploring Organic Carbon–Water Partition Ratio (KOC) Data for Mobility Hazard and Exposure Assessments Using Big Data Approaches
Creators: name: Baskaran, Sivani
name: Wolf, Raoul
name: Arp, Hans Peter H.
Publisher: name: Zenodo
Year: 2023
Subjects: PMT/vPvM
Bayesian Analysis
Hazard and Risk Assessment

description: Chemical hazard and risk assessments often use physical-chemical properties to categorize and identify chemicals of concern. Most recently, legislation regarding the classification, labelling and packaging (CLP) has introduced new categories for chemical hazard assessment including persistent, mobile, and toxic (PMT) and very persistent and very mobile (vPvM). Mobility is determined based on the logarithmic organic carbon–water partition ratio (log10 KOC) or logarithmic octanol–water partition ratio (log10 KOW) for neutral compounds and the logarithmic octanol–water distribution ratio (log10 DOW) for ionizable compounds, depending on the regulatory agency and the degree of mobility (Arp and Hale 2022). In this work we use all available KOC data in a consensus approach that takes into account the variability, uncertainty, different sources and types of data. Data sources include the OECD's eChemPortal, experimental datasets, and estimated values using poly-parameter linear free energy relationships (ppLFERs), OPERA, and EPI Suite. With Bayesian statistical inference approaches we aggregate values and their errors from these different sources to derive a probability distribution for the "true" log10 KOC value. For risk assessments, the classification of mobility can then be done using the mode of the distribution with uncertainties using 95 % credibility interval. For a more risk adverse approach, the 5 % quantile of each log10 KOC distribution can be compared to the mobility thresholds.
description: SB acknowledges support from Natural Sciences and Engineering Research Council of Canada via a Postdoctoral Fellowship.
title: Global Entrepreneurship Monitor. Unternehmensgründungen im weltweiten Vergleich : Länderbericht Deutschland 1999 –Kurzfassung
title: Global Entrepreneurship Monitor. Unternehmensgründungen im weltweiten Vergleich: Länderbericht Deutschland 1999
titleType: AlternativeTitle
title: Global Entrepreneurship Monitor. Unternehmensgründungen im weltweiten Vergleich : Länderbericht Deutschland 1999
titleType: AlternativeTitle
title: Global Entrepreneurship Monitor Unternehmensgründungen im weltweiten Vergleich : Länderbericht Deutschland 1999
titleType: AlternativeTitle
Creators: name: Sternberg, Rolf
name: Otten, Claus
name: Tamásy, Christine
Publisher: name: Köln : Wirtschafts- und Sozialgeographisches Institut, Universität zu Köln
Year: 2000
Subjects: subject: Entrepreneurship
subject: Global Entrepreneurship Monitor
subject: Gründungen
subject: Unternehmensgründungen
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: Der Länderbericht Deutschland im Rahmen des Global Entrepreneurship Monitors gibt seit 1999 jährlich Auskunft über die Gründungsaktivitäten, -motive und -einstellungen in der deutschen Bevölkerung. Er wird vom deutschen Team des GEM unter Leitung von Prof. Rolf Sternberg herausgegeben.
description: The country report of Germany of the Global Entrepreneurship Monitor (GEM) provides a yearly analysis of entrepreneurship activities, motives, and attitudes in the German population, since 1999. It is published by the German team of the GEM under the lead of Prof. Rolf Sternberg.
Supplementary Material for Xiong, Gerstein, and Masel, 2021
Creators: name: Xiong, Kun
name: Gerstein, Mark
name: Masel, Joanna
Publisher: name: GSA Journals
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60114 Systems Biology

description: The supplementary materials include Table S1-6, Figure S1-16, and supplementary texts.
On congruence in Z^n and the dimension of a multidimensional circulant
Creators: name: Fiol, M. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 05C25, 05C50

description: From a generalization to $Z^n$ of the concept of congruence we define a family of regular digraphs or graphs called multidimensional circulants, which turn out to be Cayley (di)graphs of Abelian groups. This paper is mainly devoted to show the relationship between the Smith normal form for integral matrices and the dimensions of such (di)graphs, that is the minimum ranks of the groups they can arise from. In particular, those 2-step multidimensional circulants which are circulants, that is Cayley (di)graphs of cyclic groups, are fully characterized. In addition, a reasoning due to Lawrence is used to prove that the cartesian product of $n$ circulants with equal number of vertices $p>2$, $p$ a prime, has dimension $n$.
The control of the consumer risk in the ames assay
Creators: name: Neuhäuser, Markus
name: Hothorn, Ludwig A.
Publisher: name: London : SAGE Publications Ltd.
Year: 1997
Subjects: subject: Ames assay
subject: Consumer risk
subject: Difference approach
subject: Equivalence test procedures for ordered many-to-one designs
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Preclinical tests in genetic toxicology represent safety studies. Therefore, the primary concern in the evaluation of Ames test data is the control of the consumer risk, that is, the risk of erroneously concluding safety. Hence, an equivalence test procedure is adequate. This approach is presented beside the two-fold rule and classical tests for differences with respect to an order restricted alternative. © 1997, Drug Information Association. All rights reserved.
Ultrafast tuneable optical delay line based on indirect photonic transitions
Creators: name: Beggs, Daryl M.
name: Rey, Isabella H.
name: Kampfrath, Tobias
name: Rotenberg, Nir
name: Kuipers, L.
name: Krauss, Thomas F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce the concept of an indirect photonic transition and demonstrate its use in a dynamic delay line to alter the group velocity of an optical pulse. Operating on an ultrafast time scale, we show continuously tuneable delays of up to 20 ps, using a slow light photonic crystal waveguide only 300 $μ$m in length. Our approach is flexible, in that individual pulses in a pulse stream can be controlled independently, which we demonstrate by operating on pulses separated by just 30 ps. The two-step indirect transition is demonstrated here with a 30% conversion efficiency.
description: "Copyright (2012) by the American Physical Society."
Codierung von Audiosignalen mit überlappender Transformation und adaptiven Fensterfunktionen
Creators: name: Edler, Bernd
Publisher: name: Berlin : De Gruyter
Year: 1989
Subjects: subject: Audio Equipment
subject: Codes, Symbolic--Applications
subject: Adaptive Window Functions
subject: Audio Signals
subject: Bit Rate Reduction
subject: Overlapping Block Transform
subject: Time Domain Aliasing Cancellation
subject: Transform Coder
subject: Signal Processing
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Das hier vorgestellte Verfahren der Bitratenreduktion für Audiosignale basiert auf überlappenden Transformationen mit „Time Domain Aliasing Cancellation“, deren Fensterfunktionen und Transformationslängen in Abhängigkeit vom Eingangssignal umgeschaltet werden. Die adaptive Fensterung verbessert das Verhalten der Transformationscodierung mit überlappenden Blöcken, die sich durch einen hohen Codierungsgewinn auszeichnet, beim Auftreten von Impulsen und Amplitudensprüngen im Eingangssignal. © 1989, Walter de Gruyter. Alle Rechte vorbehalten.
Der Verdacht des Bagatelldiebstahls im Arbeitsrecht – Das sog. Pfandbonurteil
Creators: name: Keiser, Claudia
Publisher: name: Berlin : Walter de Gruyter
Year: 2010
Subjects: subject: Bagatellkriminalität
subject: Strafrecht
subject: Kündigungsrecht
subject: Arbeitsrecht
subject: Bagatellstrafsache
subject: Strafrecht
subject: Verdachtskündigung
subject: Arbeitsrecht
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::340 | Recht

description: Bagatellkriminalität und Unschuldsvermutung sind zwei Themenkomplexe, die zwar ursprünglich im Strafrecht verortet sind. Dass sie selbstverständlich gleichwohl auch im zivil- bzw. arbeitsrechtlichen Kontext relevant werden können, zeigt sich immer dann, wenn um die Wirksamkeit einer wegen einer solchen Bagatelltat ausgesprochenen Verdachtskündigung gestritten wird. Der Beitrag nimmt das Urteil des LArbG Berlin-Brandenburg gegen »Emily« zum Anlass, einerseits gegen eine »strafrechtliche Erheblichkeitsschwelle im Arbeitsrecht« zu argumentieren, andererseits aber die Bedeutung der Unschuldsvermutung im Arbeitsrecht hervorzuheben.
Black Hole - Bulge Relationship of Post-Starburst Quasars at z \sim 0.3
Creators: name: Hiner, Kyle D.
name: Canalizo, Gabriela
name: Wold, Margrethe
name: Brotherton, Michael S.
name: Cales, Sabrina L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The MBH - σ\ast relation has been studied extensively for local galaxies, but to date there have been scarce few direct measurements of stellar velocity dispersions for systems beyond the local universe. We investigate black hole and host galaxy properties of six "post-starburst quasars" at z \sim 0.3. Spectra of these objects simultaneously display features from the active nucleus including broad emission lines and a host galaxy Balmer absorption series indicative of the post-starburst stellar population. These are the first measurements of σ\ast in such objects, and we significantly increase the number of directly-measured non-local objects on the MBH - σ\ast diagram. The "post-starburst quasars" of our sample fall on or above the locally defined MBH - σ\ast relation, a result that is consistent with previous MBH - σ\ast studies of samples at z > 0.1. However, they are generally consistent with the MBH-Lbulge relation. Futhermore, their location on the Faber-Jackson relation suggests that some of the bulges may be dynamically peculiar.
description: 15 pages, 9 figures, accepted for publication in ApJ
Degradation rates and products of pure magnesium exposed to different aqueous media under physiological conditions
Creators: name: Kieke, Marc D.K.
name: Feyerabend, Frank
name: Lemaitre, Jacques
name: Behrens, Peter
name: Willumeit-Römer, Regine
Publisher: name: Berlin : De Gruyter
Year: 2016
Subjects: subject: brucite
subject: Dulbecco's Modified Eagle Medium
subject: Hank's Balanced Salt Solution
subject: nesquehonite
subject: pure magnesium
subject: simulated body fluid
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: As magnesium and many of its alloys are a promising class of degradable implant materials, a thorough understanding of their degradation under physiological conditions is a key challenge in the field of biomaterial science. In order to increase the predictive power of in vitro studies, it is necessary to imitate the in vivo conditions, track the decomposition process and identify the products that form during the degradation pathway. In this in vitro study, slices of pure magnesium were exposed to Hank's Balanced Salt Solution (HBSS), Dulbecco's Modified Eagle Medium (DMEM) and simulated body fluid (SBF), respectively, under cell culture conditions, which included CO2 gassing. The series were repeated with supplements of fetal bovine serum (FBS), added to the respective media. Degradation rates, osmolality and pH were found to vary with the choice of medium and supplementation with proteins. In order to identify the crystalline degradation products, the crusts formed on the specimens were investigated via X-ray diffraction (XRD) measurements. As expected, brucite, Mg(OH)2, was found among the degradation products; interestingly, nesquehonite, Mg(HCO3)(OH)·2H2O, was found to be the dominant degradation product in this study. The experimental data are well in accordance with solubility calculations.
Cell differentiation based on absorption and scattering
Creators: name: Eisert, Wolfgang G.
Publisher: name: London : SAGE Publications Ltd.
Year: 1979
Subjects: subject: blood and hemopoietic system
subject: cell membrane
subject: cell population
subject: cell recognition
subject: cell size
subject: histology
subject: light scattering
subject: lymphatic system
subject: methodology
subject: Absorption
subject: Animal
subject: Cytological Techniques
subject: Erythrocyte Aging
subject: Erythrocytes
subject: Human
subject: Light
subject: Lymphocytes
subject: Neoplasms, Experimental
subject: Photometry
subject: Rats
subject: Scattering, Radiation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Improvements of the flow system allow calibrated cell length measurements down to less than 2 μm at a very high rate. An optical index match to plane viewing windows perpendicular to the optical axis in the flow system keeps the axial symmetry for forward scattered light. Cell size, axial light loss and scattering intensity within different angles were found to be powerful tools to differentiate cell populations. Red cells were analyzed according to various cell surface structures. Lymphocyte populations isolated from different parts of the lymphatic system in rats have been distinguished. Experimental tumor cells showed typical data pattern after different chemical treatments.
The effects of balanced scorecard on performance in selected non-profits making organisations in Nigeria
Creators: name: Ajala, Festus
Publisher: name: Cardiff Metropolitan University
Year: 2023
Subjects: Performance evaluation

description: The need to adopt the right performance measurement tool in non-profits organisation has gained incredible empirical attention. Kaplan and Norton's balanced scorecard was developed as a result of the shortcomings of numeric financial data used in traditional performance appraisal systems. Based on the aforementioned reference, this study sought to assess the effects of the balanced scorecard propositions of customers, financial, internal business processes and learning and growth perspectives on the performance of selected non-profit organisations in Nigeria. Purposive, convenience and snowball sampling techniques were used to collect data from two hundred twenty-five (225) participants out of a targeted sample of three hundred and eighty-four (384) obtained from 10 non-profits organisation sampled from four states in the Federal Republic of Nigeria. Data were collected using structured questionnaires and analysed using multivariate regression analysis. Data cleansing was concluded to enhance data validity. The Covariance-Based Structural Equation Modelling technique [CB-SEM] was used to test four hypothetical relationships using SPSS 23 and Amos 24 statistical packages.
Jean-Maurice Monnoyer, Adrienne Monnier, Gisele Freund, Jean Selz (Hrsg.), Walter Benjamin, 1991 /  Marc B. De Launay, Marc Jimenez (Hrsg.), Walter Benjamin, 1990
Creators: name: Betz, Albrecht
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 20, Nr. 3 (1993)
On Benchmarking Embedded Linux Flash File Systems
Creators: name: Olivier, Pierre
name: Boukhobza, Jalil
name: Senn, Eric
Publisher: name: arXiv
Year: 2012
Subjects: subject: Operating Systems (cs.OS)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Due to its attractive characteristics in terms of performance, weight and power consumption, NAND flash memory became the main non volatile memory (NVM) in embedded systems. Those NVMs also present some specific characteristics/constraints: good but asymmetric I/O performance, limited lifetime, write/erase granularity asymmetry, etc. Those peculiarities are either managed in hardware for flash disks (SSDs, SD cards, USB sticks, etc.) or in software for raw embedded flash chips. When managed in software, flash algorithms and structures are implemented in a specific flash file system (FFS). In this paper, we present a performance study of the most widely used FFSs in embedded Linux: JFFS2, UBIFS,and YAFFS. We show some very particular behaviors and large performance disparities for tested FFS operations such as mounting, copying, and searching file trees, compression, etc.
description: Embed With Linux, Lorient : France (2012)
Devolatilization of polymers by diffusion and foaming
Creators: name: Gestring, Ingo
name: Mewes, Dieter
Publisher: name: London : SAGE Publications Ltd.
Year: 2002
Subjects: subject: Diffusion
subject: Interfaces (materials)
subject: Mass transfer
subject: Molecular weight
subject: Nucleation
subject: Thick films
subject: Thin films
subject: Devolatilization
subject: Foaming
subject: Polymers
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: Devolatilization is a key step in polymer processing. Low-molecular-weight components are removed from a polymeric system. The transport of these components takes place by diffusion to the polymer-vapor interface. This interface can be formed by free surfaces of single-phase polymer melts or by bubbles. In this study the transport with and without bubble nucleation is investigated independently from each other in a specially designed apparatus. The mass transport in thin films and in rotating pools with surface renewal is measured. High surface renewal rates and thick films enhance the mass transfer for single phase flow. For two phase flow and devolatilization the conditions for bubble nucleation and foam formation are investigated. The bubble nucleation is observed in the rotating pool in the area of high shear velocity.
Controlled double-slit electron diffraction
Creators: name: Bach, Roger
name: Pope, Damian
name: Liou, Sy-Hwang
name: Batelaan, Herman
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Double-slit diffraction is a corner stone of quantum mechanics. It illustrates key features of quantum mechanics: interference and the particle-wave duality of matter. In 1965, Richard Feynman presented a thought experiment to show these features. Here we demonstrate the full realization of his famous thought experiment. By placing a movable mask in front of a double-slit to control the transmission through the individual slits, probability distributions for single- and double-slit arrangements were observed. Also, by recording single electron detection events diffracting through a double-slit, a diffraction pattern was built up from individual events.
description: 8 pages, 3 figures
Örnek Projeler Kitabı (Ek Kitapta Yeni KA122,KA210,KA220 ve Spor Projeleri de Vardır)
Creators: name: Tokmak, Musa
Publisher: name: figshare
Year: 2023
Subjects: Humanities and social sciences curriculum and pedagogy (excl. economics, business and management)

description: Örnek Projeler Kitabı (Ek Kitapta Yeni KA122,KA210,KA220 ve Spor Projeleri de Vardır)
 Erasmus+ ve Tübitak Örnek Projeler Kitabı (2021-2027 Dönemi) Erasmus+ 2021-2027 dönemini kapsayan projelerinin yanında Tübitak Lise Öğrencileri Projelerini de kapsayan yeni “Erasmus+ ve Tübitak Örnek Projeler Kitabı (2021-2027 Dönemi) ” pdf olarak yayındadır. Kapsamında aşağıdaki proje türleri bulunmaktadır. Projeler tamamen aslına uygun olarak (proje formu üstüne) ful doldurulmuştur. İnceleme Linki:
 https://figshare.com/articles/dataset/ERASMUS_rnek_Projeler_Kitab_2021-2027_D_nemi_/22762301
 -2 tane Erasmus+KA210 kodlu Okul Eğitimi Alanında Küçük Ölçekli Ortaklık Projeleri -4 tane Erasmus+KA122 SCH ve VET kodlu Okul ve Mesleki Eğitimi Öğrenci ve Personel Hareketliliği Projeleri -1 tane Tübitak 4004 Doğa ve Bilim Okulları Projeleri -18 tane Tübitak 4006 Bilim Fuarları Projeleri -1 tane Tübitak Lise Öğrencileri Kutup Araştırmaları Projeleri -3 tane Tübitak 22014 A Lise Öğrencileri Araştırma Projeleri -1 tane Teknofest Projesi
 2.Örnek Projeler Kitabım da (Taslak Yayın): -5 İngilizce doldurulmuş KA122SCH,2 Tane Türkçe doldurulmuş KA122 SCH ve 1 tane Türkçe doldurulmuş KA122 VET -1 Tane İngilizce 210 ADU,2 Tane İngilizce KA210 SCH,1 Tane Türkçe KA210 -1 Tane İngilizce KA220 SCH -3 Tane İngilizce Spor Projesi Proje Vardır. İster Tek Tek İsterseniz İkisini alabilirsiniz İletişim: musatokmak3@yahoo.com whatsapp:05365632256
Brake squeal control with shunted piezoceramics - efficient modelling and experiments
Creators: name: Neubauer, M.
name: Oleskiewicz, R.
Publisher: name: London : SAGE Publications Ltd.
Year: 2008
Subjects: subject: Brake squeal
subject: Feedback control
subject: Kirchhoff plate
subject: Negative capacitance
subject: Shunted piezoelectric transducer
subject: Vibration damping
subject: Piezoelectric transducers
subject: Control strategies
subject: Embedded transducers
subject: Mechanical modelling
subject: Piezo-ceramics
subject: Test rigs
subject: Transducers
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik

description: Due to increased interest in comfort features, considerable effort has been spent on the modification of brake prototypes in order to suppress brake squeal. Recently, piezoelectric transducers have been investigated as an innovative way of controlling the vibrations of a brake. This paper presents an efficient mechanical model for the description of a brake with embedded transducers. Different control strategies are discussed and compared. Measurements on a brake test rig validate the obtained results. © IMechE 2008.
Feedback cooling of cantilever motion using a quantum point contact transducer
Creators: name: Montinaro, M.
name: Mehlin, A.
name: Solanki, H. S.
name: Peddibhotla, P.
name: Mack, S.
name: Awschalom, D. D.
name: Poggio, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use a quantum point contact (QPC) as a displacement transducer to measure and control the low-temperature thermal motion of a nearby micromechanical cantilever. The QPC is included in an active feedback loop designed to cool the cantilever's fundamental mechanical mode, achieving a squashing of the QPC noise at high gain. The minimum achieved effective mode temperature of 0.2 K and the displacement resolution of 10^(-11) m/Hz^(1/2) are limited by the performance of the QPC as a one-dimensional conductor and by the cantilever-QPC capacitive coupling.
description: 5 pages, 4 figures
Development of a real-time-position prediction algorithm for under-actuated robot manipulator by using of artificial neural network
Creators: name: Al-Assadi, H.M.A.A.
name: Mat Isa, A.A.
name: Hasan, A.T.
name: Rahman, Z.A.
name: Heimann, B.
Publisher: name: London : SAGE Publications Ltd.
Year: 2011
Subjects: subject: Artificial neural network
subject: Prediction algorithm
subject: Under-actuated robot
subject: Adaptive learning algorithm
subject: Angular positions
subject: Artificial Neural Network
subject: Dynamic couplings
subject: Gear train
subject: Model-free method
subject: Passive joints
subject: Prediction algorithms
subject: Robot manipulator
subject: System modelling
subject: Adaptive algorithms
subject: Flexible manipulators
subject: Forecasting
subject: Industrial robots
subject: Learning algorithms
subject: Modular robots
subject: Robot applications
subject: Neural networks
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik

description: An adaptive learning algorithm using an artificial neural network (ANN) has been proposed to predict the passive joint position of under-actuated robot manipulator. In this approach, a specific ANN model has been designed and trained to learn a desired set of joint angular positions for the passive joint from a given set of input torque and angular position for the active joint over a certain period of time. Trying to overcome the disadvantages of many used techniques in the literature, the ANNs have a significant advantage of being a model-free method. The learning algorithm can directly determine the position of its passive joint, and can, therefore, completely eliminate the need for any system modelling. Even though it is very difficult in practice, data used in this study were recorded experimentally from sensors fixed on robot's joints to overcome the effect of kinematics uncertainties present in the real world such as ill-defined linkage parameters and backlashes in gear trains. An ANN was trained using the experimentally obtained data and then used to predict the path of the passive joint that is positioned by the dynamic coupling of the active joint. The generality and efficiency of the proposed algorithm are demonstrated through simulations of an under-actuated robot manipulator; finally, the obtained results were successfully verified experimentally. © Authors 2011.
Biodegradation of a magnesium alloy implant in the intercondylar femoral notch showed an appropriate response to the synovial membrane in a rabbit model in vivo
Creators: name: Ezechieli, Marco
name: Diekmann, Julia
name: Weizbauer, Andreas
name: Becher, Christoph
name: Willbold, Elmar
name: Helmecke, Patrick
name: Lucas, Arne
name: Schavan, Robert
name: Windhagen, Henning
Publisher: name: London : SAGE Publications Ltd.
Year: 2014
Subjects: subject: biocompatibility
subject: cytotoxicity test
subject: degradable
subject: Magnesium alloy
subject: synovitis
subject: Animals
subject: Biocompatibility
subject: Biodegradation
subject: Biological materials
subject: Degradation
subject: Neural prostheses
subject: Osteoblasts
subject: Cytotoxicity test
subject: Degradation products
subject: Implantation periods
subject: Inflammatory reaction
subject: Leachable products
subject: Orthopedic applications
subject: Magnesium alloys
subject: alloy
subject: biomaterial
subject: magnesium
subject: titanium
subject: animal experiment
subject: animal model
subject: animal tissue
subject: anterior cruciate ligament
subject: article
subject: biodegradation
subject: controlled study
subject: female
subject: implantation
subject: incubation time
subject: inflammation
subject: nonhuman
subject: orthopedic implant
subject: osteoblast
subject: priority journal
subject: surgical injury
subject: synovial fluid
subject: synovium
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Degradable magnesium alloys are promising biomaterials for orthopedic applications. The aim of this study was to evaluate the potential effects on both the synovial membrane (synovialis) and the synovial fluid (synovia) of the degradation products of a MgYREZr-pin implanted in the intercondylar femoral notch in a rabbit model. Thirty-six animals were randomized into two groups (MgYREZr or Ti6Al4V alloy) of 18 animals each. Each group was then divided into three subgroups with implantation periods of 1, 4, and 12 weeks, with six animals in each subgroup. The initial inflammatory reaction caused by the surgical trauma declined after 12 weeks of implantation, and elucidated a progressive recovery of the synovial membrane. Compared with control Ti6Al4V pins, there were no significant differences between the groups. However, after 12 weeks, recovery of the synovial membrane was more advanced in the titanium group, in which 92% showed no signs of synovitis, than in the magnesium group. A cytotoxicity test with L929 cells and human osteoblasts (HOB) was also conducted, according to EN ISO 10993-5/12, and no toxic leachable products were observed after 24 h of incubation. In conclusion, the MgYREZr alloy seems to be a suitable material for intra-articular degradable implants. © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.
Aufkommens- und Verteilungsfolgen des Ersatzes des deutschen einkommensteuerlichen Formeltarifs durch einen Stufentarif
Creators: name: Houben, Henriette
name: Maiterth, Ralf
name: Müller, Heiko
Publisher: name: Berlin : De Gruyter
Year: 2011
Subjects: subject: empirical analysis
subject: tax system
subject: Germany
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: A simplification of the German tax law is the major intend when proposing a graduated tax rate to replace the current German formula based tax scale. A plain tax rate structure requires catchy tax brackets (e.g. in 5.000 € or 10.000 € steps) and tax rates (e.g. tax rate differences of 5% or 10%). Our empirical analysis shows that such a graduated tax rate causes significant distributional effects and, depending on the particular form, affects different groups of tax payers in different ways. This holds in particular for the two graduated tax rate proposals from the German Liberal Party which additionally provoke substantial revenue losses. A graduated tax rate with little revenue and distributional effects compared to the current formula based tax scale lacks a plain structure and hence conflicts with the objective of tax simplification. © 2011 Verein für Socialpolitik.
Optimal state pairs for non-Markovian quantum dynamics
Creators: name: Wissmann, Steffen
name: Karlsson, Antti
name: Laine, Elsi-Mari
name: Piilo, Jyrki
name: Breuer, Heinz-Peter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a recently proposed measure for the quantification of quantum non-Markovianity in the dynamics of open systems which is based on the exchange of information between the open system and its environment. This measure relates the degree of memory effects to certain optimal initial state pairs featuring a maximal flow of information from the environment back to the open system. We rigorously prove that the states of these optimal pairs must lie on the boundary of the space of physical states and that they must be orthogonal. This implies that quantum memory effects are maximal for states which are initially distinguishable with certainty, having a maximal information content. Moreover, we construct an explicit example which demonstrates that optimal quantum states need not be pure states.
description: 6 pages, 2 figures
A class of multifractal processes constructed using an embedded branching process
Creators: name: Decrouez, Geoffrey
name: Jones, Owen Dafydd
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We present a new class of multifractal process on R, constructed using an embedded branching process. The construction makes use of known results on multitype branching random walks, and along the way constructs cascade measures on the boundaries of multitype Galton-Watson trees. Our class of processes includes Brownian motion subjected to a continuous multifractal time-change. In addition, if we observe our process at a fixed spatial resolution, then we can obtain a finite Markov representation of it, which we can use for on-line simulation. That is, given only the Markov representation at step n, we can generate step n+1 in O(log n) operations. Detailed pseudo-code for this algorithm is provided.
description: Published in at http://dx.doi.org/10.1214/11-AAP834 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
WITNESSING A GAP: HOW DIGITAL FORENSIC EXPERT WITNESS QUALIFICATIONS DIFFER FROM ATTORNEY EXPECTATIONS
Creators: name: Piper, Megan Celeste
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Other information and computing sciences not elsewhere classified

description: Due to the increasing use of technology in everyday life, electronic evidence has become a vital part of nearly every criminal and civil trial. Such evidence can carry so much weight that it has been the “smoking gun” in a wide variety of cases, from traffic accidents to intellectual property disputes to murder. A computer forensics examiner is required to thoroughly analyze and interpret the data gathered from various sources; they can be an important ally in court by helping jurors understand the significance of the evidence. It is critical that expert witnesses aim to be highly qualified to testify in court. However, currently there are only minimal qualifications to testify as a digital forensics expert witness. Without proper standards, the wrong verdict could be determined. This research aimed to determine if there is a gap between the preference for qualifications for digital forensics experts and what qualifications such experts have actually attained. A group of attorneys and officers were asked to participate in an online survey study for which they were presented with questions on desired and attained qualifications. While this study showed that expert witnesses mostly met lawyer expectations, it also demonstrated that there is need for standardized qualifications for expert testimony.
Multisegmentation through wavelets: Comparing the efficacy of Daubechies vs Coiflets
Creators: name: Srivastava, Madhur
name: Yashu, Yashwant
name: Singh, Satish K.
name: Panigrahi, Prasanta K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we carry out a comparative study of the efficacy of wavelets belonging to Daubechies and Coiflet family in achieving image segmentation through a fast statistical algorithm.The fact that wavelets belonging to Daubechies family optimally capture the polynomial trends and those of Coiflet family satisfy mini-max condition, makes this comparison interesting. In the context of the present algorithm, it is found that the performance of Coiflet wavelets is better, as compared to Daubechies wavelet.
description: 4 pages
A cognitive approach to obligatory control phenomena in English and German
Creators: name: Panther, Klaus-Uwe
name: Köpcke, Klaus-Michael
Publisher: name: Berlin : Walter de Gruyter
Year: 1993
Subjects: subject: montague grammar
subject: binding
subject: Montague-Grammatik
subject: Syntax
subject: Wortverbindung
subject: Dewey Decimal Classification::400 | Sprache, Linguistik
subject: Dewey Decimal Classification::400 | Sprache, Linguistik::420 | Englisch
subject: Dewey Decimal Classification::400 | Sprache, Linguistik::430 | Deutsch

description: The aim of the paper is to develop a uniform semantic-pragmatic theory of Controller choice for a numbei of German and English subject control verbs like promise/versprechen and object contiol verbs like request/bitten, recommend/empfehlen, force/zwingen, etc., which prototypically require a complement clause denoting an action performed by a human agent, who is left unexpiessed in the Infinitive clause (PRO). We propose the concept of Semanticpragmatic role* to account for a number of control phenomena which have hitherto been treated äs exceptions. We show that Controller choice and control switch heavily depend on two semanticpragmatic factors, i.e. 'degree of agentivity of PRO9 and 'role identity of a matrix N P and PRO9. Furthermore, at least in English, 'iconicity', i.e. the reflection of referential identity in formal closeness, plays an Import an t role. Our analysis is based on two experiments conducted with 35 native Speakers of German and 28 native Speakers of American English.
Accretion and outflow of gas in Markarian 509
Creators: name: Kaastra, Jelle
name: Petrucci, Pierre-Olivier
name: Cappi, Massimo
name: Arav, Nahum
name: Behar, Ehud
name: Bianchi, Stefano
name: Branduardi-Raymont, Graziella
name: Costantini, Elisa
name: Ebrero, Jacobo
name: Kriss, Jerry
name: Mehdipour, Missagh
name: Paltani, Stephane
name: Pinto, Ciro
name: Ponti, Gabriele
name: Steenbrugge, Katrien
name: de Vries, Cor
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A major uncertainty in models for photoionised outflows in AGN is the distance of the gas to the central black hole. We present the results of a massive multiwavelength monitoring campaign on the bright Seyfert 1 galaxy Mrk 509 to constrain the location of the outflow components dominating the soft X-ray band. Mrk 509 was monitored by XMM-Newton, Integral, Chandra, HST/COS and Swift in 2009. We have studied the response of the photoionised gas to the changes in the ionising flux produced by the central regions. We were able to put tight constraints on the variability of the absorbers from day to year time scales. This allowed us to develop a model for the time-dependent photoionisation in this source. We find that the more highly ionised gas producing most X-ray line opacity is at least 5 pc away from the core; upper limits to the distance of various absorbing components range between 20 pc up to a few kpc. The more lowly ionised gas producing most UV line opacity is at least 100 pc away from the nucleus. These results point to an origin of the dominant, slow (v<1000 km/s) outflow components in the NLR or torus-region of Mrk 509. We find that while the kinetic luminosity of the outflow is small, the mass carried away is likely larger than the 0.5 Solar mass per year accreting onto the black hole. We also determined the chemical composition of the outflow as well as valuable constraints on the different emission regions. We find for instance that the resolved component of the Fe-K line originates from a region 40-1000 gravitational radii from the black hole, and that the soft excess is produced by Comptonisation in a warm (0.2-1 keV), optically thick (tau~10-20) corona near the inner part of the disk.
description: 4 pages, 1 figure, Proceedings of IAUS 290 "Feeding Compact Objects: Accretion on All Scales", C. M. Zhang, T. Belloni, M. Mendez & S. N. Zhang (eds.)
Traces on the Algebra of Observables of Rational Calogero Model based on the Root System
Creators: name: Konstein, S. E.
name: Tyutin, I. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: It is shown that H_R(ν), the algebra of observables of the rational Calogero model based on the root system R, possesses T(R) independent traces, where T(R) is the number of conjugacy classes of elements without eigenvalue 1 belonging to the Coxeter group W(R) generated by the root system R. Simultaneously, we reproduced an older result: the algebra H_R(ν), considered as a superalgebra with a natural parity, possesses ST(R) independent supertraces, where ST(R) is the number of conjugacy classes of elements without eigenvalue -1 belonging to W(R).
description: Latex 2e, 25 pages
Multiangle static and dynamic light scattering in the intermediate scattering angle range
Creators: name: Tamborini, Elisa
name: Cipelletti, Luca
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We describe a light scattering apparatus based on a novel optical scheme covering the scattering angle range $0.5\dg \le θ\le 25\dg$, an intermediate regime at the frontier between wide angle and small angle setups that is difficult to access by existing instruments. Our apparatus uses standard, readily available optomechanical components. Thanks to the use of a charge-coupled device detector, both static and dynamic light scattering can be performed simultaneously at several scattering angles. We demonstrate the capabilities of our apparatus by measuring the scattering profile of a variety of samples and the Brownian dynamics of a dilute colloidal suspension.
Discontinuous Galerkin method for Navier-Stokes equations using kinetic flux vector splitting
Creators: name: Chandrashekar, Praveen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Kinetic schemes for compressible flow of gases are constructed by exploiting the connection between Boltzmann equation and the Navier-Stokes equations. This connection allows us to construct a flux splitting for the Navier-Stokes equations based on the direction of molecular motion from which a numerical flux can be obtained. The naive use of such a numerical flux function in a discontinuous Galerkin (DG) discretization leads to an unstable scheme in the viscous dominated case. Stable schemes are constructed by adding additional terms either in a symmetric or non-symmetric manner which are motivated by the DG schemes for elliptic equations. The novelty of the present scheme is the use of kinetic fluxes to construct the stabilization terms. In the symmetric case, interior penalty terms have to be added for stability and the resulting schemes give optimal convergence rates in numerical experiments. The non-symmetric schemes lead to a cell energy/entropy inequality but exhibit sub-optimal convergence rates. These properties are studied by applying the schemes to a scalar convection-diffusion equation and the 1-D compressible Navier-Stokes equations. In the case of Navier-Stokes equations, entropy variables are used to construct stable schemes.
Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System
Creators: name: Nouri, Hussain
name: Ravelet, Florent
name: Bakir, Farid
name: Sarraf, Christophe
name: Rey, Robert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow. The counter-rotating fans operate in a ducted-flow configuration and the overall performances are measured in a normalized test bench. The rotation rate of each fan is independently controlled. The relative axial spacing between fans can vary from 17% to 310%. The results show that the efficiency is strongly increased compared to a conventional rotor or to a rotor-stator stage. The effects of varying the rotation rates ratio on the overall performances are studied and show that the system has a very flexible use, with a large patch of high efficient operating points in the parameter space. The increase of axial spacing causes only a small decrease of the efficiency
description: accepted in Journal of Fluid Engineering